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* [PATCH 0/8] Cleanup traceevent API and make it more consistent
@ 2019-03-26 15:43 Tzvetomir Stoyanov
  2019-03-26 15:43 ` [PATCH 1/8] tools/perf,tools/lib/traceevent: Make traceevent APIs " Tzvetomir Stoyanov
                   ` (7 more replies)
  0 siblings, 8 replies; 55+ messages in thread
From: Tzvetomir Stoyanov @ 2019-03-26 15:43 UTC (permalink / raw)
  To: rostedt; +Cc: linux-trace-devel, linux-kernel

This patch series does a cleanup of traceevent implementation and APIs:
 - All "pevent" function parameters and local variables are renamed to "tep". 
   This makes the implementation consistent with the chosen naming convention, 
   tep (trace event parser), and avoids any confusion with the old "pevent" name 
 - Removed deprecated tep filter trivial APIs.
 - Removed call to exit() from one of traceevent APIs, a library function should 
   not force the application to exit.
 - Added counter to track parsing failures.

Changes depend on "Few patches, related to libtracevent APIs" patchset and 
should be applied on top of it.

Tzvetomir Stoyanov (8):
  tools/perf,tools/lib/traceevent: Make traceevent APIs more consistent
  tools/lib/traceevent: Add counter to track parsing failures
  tools/lib/traceevent: Remove tep filter trivial APIs
  tools/lib/traceevent: rename input arguments of libtraceevent APIs
    from pevent to tep
  tools/perf,tools/lib/traceevent: rename "pevent" member of struct
    tep_event to "tep"
  tools/perf,tools/lib/traceevent: rename "pevent" member of struct
    tep_event_filter to "tep"
  tools/lib/traceevent: rename input arguments and local variables of
    libtraceevent from pevent to tep
  tools/lib/traceevent: remove call to exit() from
    tep_filter_add_filter_str()

 tools/lib/traceevent/event-parse-api.c        | 181 ++--
 tools/lib/traceevent/event-parse-local.h      |   8 +-
 tools/lib/traceevent/event-parse.c            | 817 +++++++++---------
 tools/lib/traceevent/event-parse.h            | 148 ++--
 tools/lib/traceevent/event-plugin.c           |  32 +-
 tools/lib/traceevent/parse-filter.c           | 216 +----
 tools/lib/traceevent/plugin_cfg80211.c        |   8 +-
 tools/lib/traceevent/plugin_function.c        |  14 +-
 tools/lib/traceevent/plugin_hrtimer.c         |  12 +-
 tools/lib/traceevent/plugin_jbd2.c            |  12 +-
 tools/lib/traceevent/plugin_kmem.c            |  32 +-
 tools/lib/traceevent/plugin_kvm.c             |  48 +-
 tools/lib/traceevent/plugin_mac80211.c        |   8 +-
 tools/lib/traceevent/plugin_sched_switch.c    |  18 +-
 tools/lib/traceevent/plugin_scsi.c            |   8 +-
 tools/lib/traceevent/plugin_xen.c             |   8 +-
 tools/perf/builtin-kmem.c                     |   2 +-
 tools/perf/util/data-convert-bt.c             |   4 +-
 tools/perf/util/python.c                      |   2 +-
 .../util/scripting-engines/trace-event-perl.c |   2 +-
 .../scripting-engines/trace-event-python.c    |   2 +-
 tools/perf/util/trace-event-parse.c           |   2 +-
 tools/perf/util/trace-event-read.c            |   2 +-
 tools/perf/util/trace-event.c                 |   4 +-
 24 files changed, 719 insertions(+), 871 deletions(-)

-- 
2.20.1


^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH 1/8] tools/perf,tools/lib/traceevent: Make traceevent APIs more consistent
  2019-03-26 15:43 [PATCH 0/8] Cleanup traceevent API and make it more consistent Tzvetomir Stoyanov
@ 2019-03-26 15:43 ` Tzvetomir Stoyanov
  2019-03-26 19:43   ` Steven Rostedt
  2019-03-26 15:43 ` [PATCH 2/8] tools/lib/traceevent: Add counter to track parsing failures Tzvetomir Stoyanov
                   ` (6 subsequent siblings)
  7 siblings, 1 reply; 55+ messages in thread
From: Tzvetomir Stoyanov @ 2019-03-26 15:43 UTC (permalink / raw)
  To: rostedt; +Cc: linux-trace-devel, linux-kernel

Rename some traceevent APIs for consistency:

tep_pid_is_registered() to tep_is_pid_registered()
tep_file_bigendian() to tep_is_file_bigendian()
  to make the names and return values consistent with other tep_is_... APIs

tep_data_lat_fmt() to tep_data_latency_format()
  to make the name more descriptive

tep_host_bigendian() to tep_is_bigendian()
tep_set_host_bigendian() to tep_set_local_bigendian()
tep_is_host_bigendian() to tep_is_local_bigendian()
  "host" can be confused with VMs, and "local" is about the local
  machine. All tep_is_..._bigendian(struct tep_handle *tep) APIs return
  the saved data in the tep handle, while tep_is_bigendian() returns
  the running machine's endianness.

All tep_is_... functions are modified to return bool value, instead of int.

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
---
 tools/lib/traceevent/event-parse-api.c | 44 +++++++++++++-------------
 tools/lib/traceevent/event-parse.c     | 26 +++++++--------
 tools/lib/traceevent/event-parse.h     | 16 +++++-----
 tools/lib/traceevent/plugin_kvm.c      |  4 +--
 tools/perf/util/trace-event-read.c     |  2 +-
 tools/perf/util/trace-event.c          |  4 +--
 6 files changed, 48 insertions(+), 48 deletions(-)

diff --git a/tools/lib/traceevent/event-parse-api.c b/tools/lib/traceevent/event-parse-api.c
index 2ac8b44854ce..46670bb87051 100644
--- a/tools/lib/traceevent/event-parse-api.c
+++ b/tools/lib/traceevent/event-parse-api.c
@@ -88,7 +88,7 @@ void tep_clear_flag(struct tep_handle *tep, enum tep_flag flag)
 bool tep_test_flag(struct tep_handle *tep, enum tep_flag flag)
 {
 	if (tep)
-		return (tep->flags & flag);
+		return !!(tep->flags & flag);
 	return false;
 }
 
@@ -155,10 +155,10 @@ int tep_get_header_page_size(struct tep_handle *pevent)
 }
 
 /**
- * tep_get_header_timestamp_size - get size of the time stamp in the header page
+ * tep_get_header_timestamp_size - get size of the timestamp in the header page
  * @tep: a handle to the tep_handle
  *
- * This returns size of the time stamp in the header page
+ * This returns size of the timestamp in the header page
  * If @tep is NULL, 0 is returned.
  */
 int tep_get_header_timestamp_size(struct tep_handle *tep)
@@ -249,17 +249,17 @@ void tep_set_page_size(struct tep_handle *pevent, int _page_size)
 }
 
 /**
- * tep_file_bigendian - get if the file is in big endian order
+ * tep_is_file_bigendian - return the endian of the file
  * @pevent: a handle to the tep_handle
  *
- * This returns if the file is in big endian order
- * If @pevent is NULL, 0 is returned.
+ * This returns true if the file is in big endian order
+ * If @pevent is NULL, false is returned.
  */
-int tep_file_bigendian(struct tep_handle *pevent)
+bool tep_is_file_bigendian(struct tep_handle *pevent)
 {
 	if (pevent)
-		return pevent->file_bigendian;
-	return 0;
+		return (pevent->file_bigendian == TEP_BIG_ENDIAN);
+	return false;
 }
 
 /**
@@ -276,27 +276,27 @@ void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian)
 }
 
 /**
- * tep_is_host_bigendian - get if the order of the current host is big endian
+ * tep_is_local_bigendian - return the endian of the saved local machine
  * @pevent: a handle to the tep_handle
  *
- * This gets if the order of the current host is big endian
- * If @pevent is NULL, 0 is returned.
+ * This returns true if the saved local machine in @pevent is big endian.
+ * If @pevent is NULL, false is returned.
  */
-int tep_is_host_bigendian(struct tep_handle *pevent)
+bool tep_is_local_bigendian(struct tep_handle *pevent)
 {
 	if (pevent)
-		return pevent->host_bigendian;
+		return (pevent->host_bigendian == TEP_BIG_ENDIAN);
 	return 0;
 }
 
 /**
- * tep_set_host_bigendian - set the order of the local host
+ * tep_set_local_bigendian - set the stored local machine endian order
  * @pevent: a handle to the tep_handle
  * @endian: non zero, if the local host has big endian order
  *
- * This sets the order of the local host
+ * This sets the endian order for the local machine.
  */
-void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian)
+void tep_set_local_bigendian(struct tep_handle *pevent, enum tep_endian endian)
 {
 	if (pevent)
 		pevent->host_bigendian = endian;
@@ -306,14 +306,14 @@ void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian)
  * tep_is_latency_format - get if the latency output format is configured
  * @pevent: a handle to the tep_handle
  *
- * This gets if the latency output format is configured
- * If @pevent is NULL, 0 is returned.
+ * This returns true if the latency output format is configured
+ * If @pevent is NULL, false is returned.
  */
-int tep_is_latency_format(struct tep_handle *pevent)
+bool tep_is_latency_format(struct tep_handle *pevent)
 {
 	if (pevent)
-		return pevent->latency_format;
-	return 0;
+		return !!(pevent->latency_format);
+	return false;
 }
 
 /**
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index e53c566be55d..f309b6d7e08a 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -199,23 +199,23 @@ static const char *find_cmdline(struct tep_handle *pevent, int pid)
 }
 
 /**
- * tep_pid_is_registered - return if a pid has a cmdline registered
+ * tep_is_pid_registered - return if a pid has a cmdline registered
  * @pevent: handle for the pevent
  * @pid: The pid to check if it has a cmdline registered with.
  *
- * Returns 1 if the pid has a cmdline mapped to it
- * 0 otherwise.
+ * Returns true if the pid has a cmdline mapped to it
+ * false otherwise.
  */
-int tep_pid_is_registered(struct tep_handle *pevent, int pid)
+bool tep_is_pid_registered(struct tep_handle *pevent, int pid)
 {
 	const struct tep_cmdline *comm;
 	struct tep_cmdline key;
 
 	if (!pid)
-		return 1;
+		return true;
 
 	if (!pevent->cmdlines && cmdline_init(pevent))
-		return 0;
+		return false;
 
 	key.pid = pid;
 
@@ -223,8 +223,8 @@ int tep_pid_is_registered(struct tep_handle *pevent, int pid)
 		       sizeof(*pevent->cmdlines), cmdline_cmp);
 
 	if (comm)
-		return 1;
-	return 0;
+		return true;
+	return false;
 }
 
 /*
@@ -5171,7 +5171,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_e
 }
 
 /**
- * tep_data_lat_fmt - parse the data for the latency format
+ * tep_data_latency_format - parse the data for the latency format
  * @pevent: a handle to the pevent
  * @s: the trace_seq to write to
  * @record: the record to read from
@@ -5180,8 +5180,8 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_e
  * need rescheduling, in hard/soft interrupt, preempt count
  * and lock depth) and places it into the trace_seq.
  */
-void tep_data_lat_fmt(struct tep_handle *pevent,
-		      struct trace_seq *s, struct tep_record *record)
+void tep_data_latency_format(struct tep_handle *pevent,
+			     struct trace_seq *s, struct tep_record *record)
 {
 	static int check_lock_depth = 1;
 	static int check_migrate_disable = 1;
@@ -5530,7 +5530,7 @@ void tep_print_event_time(struct tep_handle *pevent, struct trace_seq *s,
 	}
 
 	if (pevent->latency_format) {
-		tep_data_lat_fmt(pevent, s, record);
+		tep_data_latency_format(pevent, s, record);
 	}
 
 	if (use_usec_format) {
@@ -6760,7 +6760,7 @@ struct tep_handle *tep_alloc(void)
 
 	if (pevent) {
 		pevent->ref_count = 1;
-		pevent->host_bigendian = tep_host_bigendian();
+		pevent->host_bigendian = tep_is_bigendian();
 	}
 
 	return pevent;
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 93b7d96c5afe..f3b822736d87 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -412,7 +412,7 @@ void tep_set_flag(struct tep_handle *tep, int flag);
 void tep_clear_flag(struct tep_handle *tep, enum tep_flag flag);
 bool tep_test_flag(struct tep_handle *tep, enum tep_flag flags);
 
-static inline int tep_host_bigendian(void)
+static inline int tep_is_bigendian(void)
 {
 	unsigned char str[] = { 0x1, 0x2, 0x3, 0x4 };
 	unsigned int val;
@@ -440,7 +440,7 @@ int tep_register_function(struct tep_handle *pevent, char *name,
 			  unsigned long long addr, char *mod);
 int tep_register_print_string(struct tep_handle *pevent, const char *fmt,
 			      unsigned long long addr);
-int tep_pid_is_registered(struct tep_handle *pevent, int pid);
+bool tep_is_pid_registered(struct tep_handle *pevent, int pid);
 
 void tep_print_event_task(struct tep_handle *pevent, struct trace_seq *s,
 			  struct tep_event *event,
@@ -526,8 +526,8 @@ tep_find_event_by_name(struct tep_handle *pevent, const char *sys, const char *n
 struct tep_event *
 tep_find_event_by_record(struct tep_handle *pevent, struct tep_record *record);
 
-void tep_data_lat_fmt(struct tep_handle *pevent,
-		      struct trace_seq *s, struct tep_record *record);
+void tep_data_latency_format(struct tep_handle *pevent,
+			     struct trace_seq *s, struct tep_record *record);
 int tep_data_type(struct tep_handle *pevent, struct tep_record *rec);
 int tep_data_pid(struct tep_handle *pevent, struct tep_record *rec);
 int tep_data_preempt_count(struct tep_handle *pevent, struct tep_record *rec);
@@ -561,11 +561,11 @@ int tep_get_long_size(struct tep_handle *pevent);
 void tep_set_long_size(struct tep_handle *pevent, int long_size);
 int tep_get_page_size(struct tep_handle *pevent);
 void tep_set_page_size(struct tep_handle *pevent, int _page_size);
-int tep_file_bigendian(struct tep_handle *pevent);
+bool tep_is_file_bigendian(struct tep_handle *pevent);
 void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian);
-int tep_is_host_bigendian(struct tep_handle *pevent);
-void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian);
-int tep_is_latency_format(struct tep_handle *pevent);
+bool tep_is_local_bigendian(struct tep_handle *pevent);
+void tep_set_local_bigendian(struct tep_handle *pevent, enum tep_endian endian);
+bool tep_is_latency_format(struct tep_handle *pevent);
 void tep_set_latency_format(struct tep_handle *pevent, int lat);
 int tep_get_header_page_size(struct tep_handle *pevent);
 int tep_get_header_timestamp_size(struct tep_handle *tep);
diff --git a/tools/lib/traceevent/plugin_kvm.c b/tools/lib/traceevent/plugin_kvm.c
index 64b9c25a1fd3..688e5d97d7a7 100644
--- a/tools/lib/traceevent/plugin_kvm.c
+++ b/tools/lib/traceevent/plugin_kvm.c
@@ -389,8 +389,8 @@ static int kvm_mmu_print_role(struct trace_seq *s, struct tep_record *record,
 	 * We can only use the structure if file is of the same
 	 * endianness.
 	 */
-	if (tep_file_bigendian(event->pevent) ==
-	    tep_is_host_bigendian(event->pevent)) {
+	if (tep_is_file_bigendian(event->pevent) ==
+	    tep_is_local_bigendian(event->pevent)) {
 
 		trace_seq_printf(s, "%u q%u%s %s%s %spae %snxe %swp%s%s%s",
 				 role.level,
diff --git a/tools/perf/util/trace-event-read.c b/tools/perf/util/trace-event-read.c
index efe2f58cff4e..48d53d8e3e16 100644
--- a/tools/perf/util/trace-event-read.c
+++ b/tools/perf/util/trace-event-read.c
@@ -442,7 +442,7 @@ ssize_t trace_report(int fd, struct trace_event *tevent, bool __repipe)
 
 	tep_set_flag(pevent, TEP_NSEC_OUTPUT);
 	tep_set_file_bigendian(pevent, file_bigendian);
-	tep_set_host_bigendian(pevent, host_bigendian);
+	tep_set_local_bigendian(pevent, host_bigendian);
 
 	if (do_read(buf, 1) < 0)
 		goto out;
diff --git a/tools/perf/util/trace-event.c b/tools/perf/util/trace-event.c
index cbe0dd758e3a..01b9d89bf5bf 100644
--- a/tools/perf/util/trace-event.c
+++ b/tools/perf/util/trace-event.c
@@ -40,7 +40,7 @@ int trace_event__init(struct trace_event *t)
 
 static int trace_event__init2(void)
 {
-	int be = tep_host_bigendian();
+	int be = tep_is_bigendian();
 	struct tep_handle *pevent;
 
 	if (trace_event__init(&tevent))
@@ -49,7 +49,7 @@ static int trace_event__init2(void)
 	pevent = tevent.pevent;
 	tep_set_flag(pevent, TEP_NSEC_OUTPUT);
 	tep_set_file_bigendian(pevent, be);
-	tep_set_host_bigendian(pevent, be);
+	tep_set_local_bigendian(pevent, be);
 	tevent_initialized = true;
 	return 0;
 }
-- 
2.20.1


^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH 2/8] tools/lib/traceevent: Add counter to track parsing failures
  2019-03-26 15:43 [PATCH 0/8] Cleanup traceevent API and make it more consistent Tzvetomir Stoyanov
  2019-03-26 15:43 ` [PATCH 1/8] tools/perf,tools/lib/traceevent: Make traceevent APIs " Tzvetomir Stoyanov
@ 2019-03-26 15:43 ` Tzvetomir Stoyanov
  2019-03-26 19:48   ` Steven Rostedt
  2019-03-26 15:43 ` [PATCH 3/8] tools/lib/traceevent: Remove tep filter trivial APIs Tzvetomir Stoyanov
                   ` (5 subsequent siblings)
  7 siblings, 1 reply; 55+ messages in thread
From: Tzvetomir Stoyanov @ 2019-03-26 15:43 UTC (permalink / raw)
  To: rostedt; +Cc: linux-trace-devel, linux-kernel

This patch adds a parsing failures counter to struct tep_handle. The counter can
be used to track failures on parsing event format files. It is updated
automatically by tep_parse_event(), when failure is detected. The patch also
adds two new APIs for accessing the counter:
 tep_get_parsing_failures() - returns the current value of the counter.
 tep_clear_parsing_failures() - clears the counter.

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
---
 tools/lib/traceevent/event-parse-api.c   | 27 ++++++++++++++++++++++++
 tools/lib/traceevent/event-parse-local.h |  2 ++
 tools/lib/traceevent/event-parse.c       |  8 ++++++-
 tools/lib/traceevent/event-parse.h       |  2 ++
 4 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/tools/lib/traceevent/event-parse-api.c b/tools/lib/traceevent/event-parse-api.c
index 46670bb87051..1fe284b1fac8 100644
--- a/tools/lib/traceevent/event-parse-api.c
+++ b/tools/lib/traceevent/event-parse-api.c
@@ -371,3 +371,30 @@ void tep_set_test_filters(struct tep_handle *tep, int test_filters)
 	if (tep)
 		tep->test_filters = test_filters;
 }
+
+/**
+ * tep_get_parsing_failures - get the count of parsing failures
+ * @tep: a handle to a tep_handle
+ *
+ * Every time when tep_parse_event() fails to parse an event format file,
+ * a parsing failure is registered. This returns the parsing failures count.
+ */
+int tep_get_parsing_failures(struct tep_handle *tep)
+{
+	if (tep)
+		return tep->parsing_failures;
+	return 0;
+}
+
+/**
+ * tep_clear_parsing_failures - clear parsing failures count
+ * @tep: a handle to a tep_handle
+ *
+ * Every time when tep_parse_event() fails to parse an event format file,
+ * a parsing failure is registered. This clears the parsing failures counter.
+ */
+void tep_clear_parsing_failures(struct tep_handle *tep)
+{
+	if (tep)
+		tep->parsing_failures = 0;
+}
diff --git a/tools/lib/traceevent/event-parse-local.h b/tools/lib/traceevent/event-parse-local.h
index 35833ee32d6c..c5c8eb4c4ab7 100644
--- a/tools/lib/traceevent/event-parse-local.h
+++ b/tools/lib/traceevent/event-parse-local.h
@@ -83,6 +83,8 @@ struct tep_handle {
 	struct event_handler *handlers;
 	struct tep_function_handler *func_handlers;
 
+	int parsing_failures;
+
 	/* cache */
 	struct tep_event *last_event;
 
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index f309b6d7e08a..4144c4e20e4e 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -6230,7 +6230,13 @@ enum tep_errno tep_parse_event(struct tep_handle *pevent, const char *buf,
 			       unsigned long size, const char *sys)
 {
 	struct tep_event *event = NULL;
-	return __parse_event(pevent, &event, buf, size, sys);
+	enum tep_errno ret;
+
+	ret = __parse_event(pevent, &event, buf, size, sys);
+	if (ret != TEP_ERRNO__SUCCESS)
+		pevent->parsing_failures++;
+
+	return ret;
 }
 
 int get_field_val(struct trace_seq *s, struct tep_format_field *field,
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index f3b822736d87..dcf0385684b8 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -464,6 +464,8 @@ enum tep_errno tep_parse_format(struct tep_handle *pevent,
 				struct tep_event **eventp,
 				const char *buf,
 				unsigned long size, const char *sys);
+int tep_get_parsing_failures(struct tep_handle *tep);
+void tep_clear_parsing_failures(struct tep_handle *tep);
 
 void *tep_get_field_raw(struct trace_seq *s, struct tep_event *event,
 			const char *name, struct tep_record *record,
-- 
2.20.1


^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH 3/8] tools/lib/traceevent: Remove tep filter trivial APIs
  2019-03-26 15:43 [PATCH 0/8] Cleanup traceevent API and make it more consistent Tzvetomir Stoyanov
  2019-03-26 15:43 ` [PATCH 1/8] tools/perf,tools/lib/traceevent: Make traceevent APIs " Tzvetomir Stoyanov
  2019-03-26 15:43 ` [PATCH 2/8] tools/lib/traceevent: Add counter to track parsing failures Tzvetomir Stoyanov
@ 2019-03-26 15:43 ` Tzvetomir Stoyanov
  2019-03-26 19:50   ` Steven Rostedt
  2019-03-26 15:43 ` [PATCH 4/8] tools/lib/traceevent: rename input arguments of libtraceevent APIs from pevent to tep Tzvetomir Stoyanov
                   ` (4 subsequent siblings)
  7 siblings, 1 reply; 55+ messages in thread
From: Tzvetomir Stoyanov @ 2019-03-26 15:43 UTC (permalink / raw)
  To: rostedt; +Cc: linux-trace-devel, linux-kernel

This patch removes trivial filter tep APIs:
 enum tep_filter_trivial_type
 tep_filter_event_has_trivial()
 tep_update_trivial()
 tep_filter_clear_trivial()

Trivial filters is an optimization, used only in the first
version of KernelShark. The API is deprecated, the next KernelShark
release does not use it.

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
---
 tools/lib/traceevent/event-parse.h  |  16 ---
 tools/lib/traceevent/parse-filter.c | 169 ----------------------------
 2 files changed, 185 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index dcf0385684b8..02932d3d2632 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -732,12 +732,6 @@ struct tep_event_filter *tep_filter_alloc(struct tep_handle *pevent);
 #define FILTER_MISS		TEP_ERRNO__FILTER_MISS
 #define FILTER_MATCH		TEP_ERRNO__FILTER_MATCH
 
-enum tep_filter_trivial_type {
-	TEP_FILTER_TRIVIAL_FALSE,
-	TEP_FILTER_TRIVIAL_TRUE,
-	TEP_FILTER_TRIVIAL_BOTH,
-};
-
 enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
 					 const char *filter_str);
 
@@ -752,9 +746,6 @@ int tep_event_filtered(struct tep_event_filter *filter,
 
 void tep_filter_reset(struct tep_event_filter *filter);
 
-int tep_filter_clear_trivial(struct tep_event_filter *filter,
-			     enum tep_filter_trivial_type type);
-
 void tep_filter_free(struct tep_event_filter *filter);
 
 char *tep_filter_make_string(struct tep_event_filter *filter, int event_id);
@@ -762,15 +753,8 @@ char *tep_filter_make_string(struct tep_event_filter *filter, int event_id);
 int tep_filter_remove_event(struct tep_event_filter *filter,
 			    int event_id);
 
-int tep_filter_event_has_trivial(struct tep_event_filter *filter,
-				 int event_id,
-				 enum tep_filter_trivial_type type);
-
 int tep_filter_copy(struct tep_event_filter *dest, struct tep_event_filter *source);
 
-int tep_update_trivial(struct tep_event_filter *dest, struct tep_event_filter *source,
-			enum tep_filter_trivial_type type);
-
 int tep_filter_compare(struct tep_event_filter *filter1, struct tep_event_filter *filter2);
 
 #endif /* _PARSE_EVENTS_H */
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index cb5ce66dab6e..4ffd8b25a852 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -1522,167 +1522,6 @@ int tep_filter_copy(struct tep_event_filter *dest, struct tep_event_filter *sour
 	return ret;
 }
 
-
-/**
- * tep_update_trivial - update the trivial filters with the given filter
- * @dest - the filter to update
- * @source - the filter as the source of the update
- * @type - the type of trivial filter to update.
- *
- * Scan dest for trivial events matching @type to replace with the source.
- *
- * Returns 0 on success and -1 if there was a problem updating, but
- *   events may have still been updated on error.
- */
-int tep_update_trivial(struct tep_event_filter *dest, struct tep_event_filter *source,
-		       enum tep_filter_trivial_type type)
-{
-	struct tep_handle *src_pevent;
-	struct tep_handle *dest_pevent;
-	struct tep_event *event;
-	struct tep_filter_type *filter_type;
-	struct tep_filter_arg *arg;
-	char *str;
-	int i;
-
-	src_pevent = source->pevent;
-	dest_pevent = dest->pevent;
-
-	/* Do nothing if either of the filters has nothing to filter */
-	if (!dest->filters || !source->filters)
-		return 0;
-
-	for (i = 0; i < dest->filters; i++) {
-		filter_type = &dest->event_filters[i];
-		arg = filter_type->filter;
-		if (arg->type != TEP_FILTER_ARG_BOOLEAN)
-			continue;
-		if ((arg->boolean.value && type == TEP_FILTER_TRIVIAL_FALSE) ||
-		    (!arg->boolean.value && type == TEP_FILTER_TRIVIAL_TRUE))
-			continue;
-
-		event = filter_type->event;
-
-		if (src_pevent != dest_pevent) {
-			/* do a look up */
-			event = tep_find_event_by_name(src_pevent,
-						       event->system,
-						       event->name);
-			if (!event)
-				return -1;
-		}
-
-		str = tep_filter_make_string(source, event->id);
-		if (!str)
-			continue;
-
-		/* Don't bother if the filter is trivial too */
-		if (strcmp(str, "TRUE") != 0 && strcmp(str, "FALSE") != 0)
-			filter_event(dest, event, str, NULL);
-		free(str);
-	}
-	return 0;
-}
-
-/**
- * tep_filter_clear_trivial - clear TRUE and FALSE filters
- * @filter: the filter to remove trivial filters from
- * @type: remove only true, false, or both
- *
- * Removes filters that only contain a TRUE or FALES boolean arg.
- *
- * Returns 0 on success and -1 if there was a problem.
- */
-int tep_filter_clear_trivial(struct tep_event_filter *filter,
-			     enum tep_filter_trivial_type type)
-{
-	struct tep_filter_type *filter_type;
-	int count = 0;
-	int *ids = NULL;
-	int i;
-
-	if (!filter->filters)
-		return 0;
-
-	/*
-	 * Two steps, first get all ids with trivial filters.
-	 *  then remove those ids.
-	 */
-	for (i = 0; i < filter->filters; i++) {
-		int *new_ids;
-
-		filter_type = &filter->event_filters[i];
-		if (filter_type->filter->type != TEP_FILTER_ARG_BOOLEAN)
-			continue;
-		switch (type) {
-		case TEP_FILTER_TRIVIAL_FALSE:
-			if (filter_type->filter->boolean.value)
-				continue;
-			break;
-		case TEP_FILTER_TRIVIAL_TRUE:
-			if (!filter_type->filter->boolean.value)
-				continue;
-		default:
-			break;
-		}
-
-		new_ids = realloc(ids, sizeof(*ids) * (count + 1));
-		if (!new_ids) {
-			free(ids);
-			return -1;
-		}
-
-		ids = new_ids;
-		ids[count++] = filter_type->event_id;
-	}
-
-	if (!count)
-		return 0;
-
-	for (i = 0; i < count; i++)
-		tep_filter_remove_event(filter, ids[i]);
-
-	free(ids);
-	return 0;
-}
-
-/**
- * tep_filter_event_has_trivial - return true event contains trivial filter
- * @filter: the filter with the information
- * @event_id: the id of the event to test
- * @type: trivial type to test for (TRUE, FALSE, EITHER)
- *
- * Returns 1 if the event contains a matching trivial type
- *  otherwise 0.
- */
-int tep_filter_event_has_trivial(struct tep_event_filter *filter,
-				 int event_id,
-				 enum tep_filter_trivial_type type)
-{
-	struct tep_filter_type *filter_type;
-
-	if (!filter->filters)
-		return 0;
-
-	filter_type = find_filter_type(filter, event_id);
-
-	if (!filter_type)
-		return 0;
-
-	if (filter_type->filter->type != TEP_FILTER_ARG_BOOLEAN)
-		return 0;
-
-	switch (type) {
-	case TEP_FILTER_TRIVIAL_FALSE:
-		return !filter_type->filter->boolean.value;
-
-	case TEP_FILTER_TRIVIAL_TRUE:
-		return filter_type->filter->boolean.value;
-	default:
-		return 1;
-	}
-}
-
 static int test_filter(struct tep_event *event, struct tep_filter_arg *arg,
 		       struct tep_record *record, enum tep_errno *err);
 
@@ -2409,14 +2248,6 @@ int tep_filter_compare(struct tep_event_filter *filter1, struct tep_event_filter
 			break;
 		if (filter_type1->filter->type != filter_type2->filter->type)
 			break;
-		switch (filter_type1->filter->type) {
-		case TEP_FILTER_TRIVIAL_FALSE:
-		case TEP_FILTER_TRIVIAL_TRUE:
-			/* trivial types just need the type compared */
-			continue;
-		default:
-			break;
-		}
 		/* The best way to compare complex filters is with strings */
 		str1 = arg_to_str(filter1, filter_type1->filter);
 		str2 = arg_to_str(filter2, filter_type2->filter);
-- 
2.20.1


^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH 4/8] tools/lib/traceevent: rename input arguments of libtraceevent APIs from pevent to tep
  2019-03-26 15:43 [PATCH 0/8] Cleanup traceevent API and make it more consistent Tzvetomir Stoyanov
                   ` (2 preceding siblings ...)
  2019-03-26 15:43 ` [PATCH 3/8] tools/lib/traceevent: Remove tep filter trivial APIs Tzvetomir Stoyanov
@ 2019-03-26 15:43 ` Tzvetomir Stoyanov
  2019-03-26 19:57   ` Steven Rostedt
  2019-03-26 15:43 ` [PATCH 5/8] tools/perf,tools/lib/traceevent: rename "pevent" member of struct tep_event to "tep" Tzvetomir Stoyanov
                   ` (3 subsequent siblings)
  7 siblings, 1 reply; 55+ messages in thread
From: Tzvetomir Stoyanov @ 2019-03-26 15:43 UTC (permalink / raw)
  To: rostedt; +Cc: linux-trace-devel, linux-kernel

This patch renames "struct tep_handle *pevent" input arguments of libtraceevent
APIs to "struct tep_handle *tep". This makes the API consistent with the chosen
naming convention: tep (trace event parser), instead of the old pevent.

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
---
 tools/lib/traceevent/event-parse-api.c     | 132 +++---
 tools/lib/traceevent/event-parse-local.h   |   6 +-
 tools/lib/traceevent/event-parse.c         | 475 ++++++++++-----------
 tools/lib/traceevent/event-parse.h         | 120 +++---
 tools/lib/traceevent/event-plugin.c        |   8 +-
 tools/lib/traceevent/parse-filter.c        |   8 +-
 tools/lib/traceevent/plugin_cfg80211.c     |   8 +-
 tools/lib/traceevent/plugin_function.c     |   8 +-
 tools/lib/traceevent/plugin_hrtimer.c      |  12 +-
 tools/lib/traceevent/plugin_jbd2.c         |  12 +-
 tools/lib/traceevent/plugin_kmem.c         |  28 +-
 tools/lib/traceevent/plugin_kvm.c          |  44 +-
 tools/lib/traceevent/plugin_mac80211.c     |   8 +-
 tools/lib/traceevent/plugin_sched_switch.c |  16 +-
 tools/lib/traceevent/plugin_scsi.c         |   8 +-
 tools/lib/traceevent/plugin_xen.c          |   8 +-
 16 files changed, 450 insertions(+), 451 deletions(-)

diff --git a/tools/lib/traceevent/event-parse-api.c b/tools/lib/traceevent/event-parse-api.c
index 1fe284b1fac8..70b9bdb246fe 100644
--- a/tools/lib/traceevent/event-parse-api.c
+++ b/tools/lib/traceevent/event-parse-api.c
@@ -92,11 +92,11 @@ bool tep_test_flag(struct tep_handle *tep, enum tep_flag flag)
 	return false;
 }
 
-unsigned short tep_data2host2(struct tep_handle *pevent, unsigned short data)
+unsigned short tep_data2host2(struct tep_handle *tep, unsigned short data)
 {
 	unsigned short swap;
 
-	if (!pevent || pevent->host_bigendian == pevent->file_bigendian)
+	if (!tep || tep->host_bigendian == tep->file_bigendian)
 		return data;
 
 	swap = ((data & 0xffULL) << 8) |
@@ -105,11 +105,11 @@ unsigned short tep_data2host2(struct tep_handle *pevent, unsigned short data)
 	return swap;
 }
 
-unsigned int tep_data2host4(struct tep_handle *pevent, unsigned int data)
+unsigned int tep_data2host4(struct tep_handle *tep, unsigned int data)
 {
 	unsigned int swap;
 
-	if (!pevent || pevent->host_bigendian == pevent->file_bigendian)
+	if (!tep || tep->host_bigendian == tep->file_bigendian)
 		return data;
 
 	swap = ((data & 0xffULL) << 24) |
@@ -121,11 +121,11 @@ unsigned int tep_data2host4(struct tep_handle *pevent, unsigned int data)
 }
 
 unsigned long long
-tep_data2host8(struct tep_handle *pevent, unsigned long long data)
+tep_data2host8(struct tep_handle *tep, unsigned long long data)
 {
 	unsigned long long swap;
 
-	if (!pevent || pevent->host_bigendian == pevent->file_bigendian)
+	if (!tep || tep->host_bigendian == tep->file_bigendian)
 		return data;
 
 	swap = ((data & 0xffULL) << 56) |
@@ -142,15 +142,15 @@ tep_data2host8(struct tep_handle *pevent, unsigned long long data)
 
 /**
  * tep_get_header_page_size - get size of the header page
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This returns size of the header page
- * If @pevent is NULL, 0 is returned.
+ * If @tep is NULL, 0 is returned.
  */
-int tep_get_header_page_size(struct tep_handle *pevent)
+int tep_get_header_page_size(struct tep_handle *tep)
 {
-	if (pevent)
-		return pevent->header_page_size_size;
+	if (tep)
+		return tep->header_page_size_size;
 	return 0;
 }
 
@@ -170,163 +170,163 @@ int tep_get_header_timestamp_size(struct tep_handle *tep)
 
 /**
  * tep_get_cpus - get the number of CPUs
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This returns the number of CPUs
- * If @pevent is NULL, 0 is returned.
+ * If @tep is NULL, 0 is returned.
  */
-int tep_get_cpus(struct tep_handle *pevent)
+int tep_get_cpus(struct tep_handle *tep)
 {
-	if (pevent)
-		return pevent->cpus;
+	if (tep)
+		return tep->cpus;
 	return 0;
 }
 
 /**
  * tep_set_cpus - set the number of CPUs
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This sets the number of CPUs
  */
-void tep_set_cpus(struct tep_handle *pevent, int cpus)
+void tep_set_cpus(struct tep_handle *tep, int cpus)
 {
-	if (pevent)
-		pevent->cpus = cpus;
+	if (tep)
+		tep->cpus = cpus;
 }
 
 /**
  * tep_get_long_size - get the size of a long integer on the traced machine
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This returns the size of a long integer on the traced machine
- * If @pevent is NULL, 0 is returned.
+ * If @tep is NULL, 0 is returned.
  */
-int tep_get_long_size(struct tep_handle *pevent)
+int tep_get_long_size(struct tep_handle *tep)
 {
-	if (pevent)
-		return pevent->long_size;
+	if (tep)
+		return tep->long_size;
 	return 0;
 }
 
 /**
  * tep_set_long_size - set the size of a long integer on the traced machine
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  * @size: size, in bytes, of a long integer
  *
  * This sets the size of a long integer on the traced machine
  */
-void tep_set_long_size(struct tep_handle *pevent, int long_size)
+void tep_set_long_size(struct tep_handle *tep, int long_size)
 {
-	if (pevent)
-		pevent->long_size = long_size;
+	if (tep)
+		tep->long_size = long_size;
 }
 
 /**
  * tep_get_page_size - get the size of a memory page on the traced machine
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This returns the size of a memory page on the traced machine
- * If @pevent is NULL, 0 is returned.
+ * If @tep is NULL, 0 is returned.
  */
-int tep_get_page_size(struct tep_handle *pevent)
+int tep_get_page_size(struct tep_handle *tep)
 {
-	if (pevent)
-		return pevent->page_size;
+	if (tep)
+		return tep->page_size;
 	return 0;
 }
 
 /**
  * tep_set_page_size - set the size of a memory page on the traced machine
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  * @_page_size: size of a memory page, in bytes
  *
  * This sets the size of a memory page on the traced machine
  */
-void tep_set_page_size(struct tep_handle *pevent, int _page_size)
+void tep_set_page_size(struct tep_handle *tep, int _page_size)
 {
-	if (pevent)
-		pevent->page_size = _page_size;
+	if (tep)
+		tep->page_size = _page_size;
 }
 
 /**
  * tep_is_file_bigendian - return the endian of the file
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This returns true if the file is in big endian order
- * If @pevent is NULL, false is returned.
+ * If @tep is NULL, false is returned.
  */
-bool tep_is_file_bigendian(struct tep_handle *pevent)
+bool tep_is_file_bigendian(struct tep_handle *tep)
 {
-	if (pevent)
-		return (pevent->file_bigendian == TEP_BIG_ENDIAN);
+	if (tep)
+		return (tep->file_bigendian == TEP_BIG_ENDIAN);
 	return false;
 }
 
 /**
  * tep_set_file_bigendian - set if the file is in big endian order
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  * @endian: non zero, if the file is in big endian order
  *
  * This sets if the file is in big endian order
  */
-void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian)
+void tep_set_file_bigendian(struct tep_handle *tep, enum tep_endian endian)
 {
-	if (pevent)
-		pevent->file_bigendian = endian;
+	if (tep)
+		tep->file_bigendian = endian;
 }
 
 /**
  * tep_is_local_bigendian - return the endian of the saved local machine
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
- * This returns true if the saved local machine in @pevent is big endian.
- * If @pevent is NULL, false is returned.
+ * This returns true if the saved local machine in @tep is big endian.
+ * If @tep is NULL, false is returned.
  */
-bool tep_is_local_bigendian(struct tep_handle *pevent)
+bool tep_is_local_bigendian(struct tep_handle *tep)
 {
-	if (pevent)
-		return (pevent->host_bigendian == TEP_BIG_ENDIAN);
+	if (tep)
+		return (tep->host_bigendian == TEP_BIG_ENDIAN);
 	return 0;
 }
 
 /**
  * tep_set_local_bigendian - set the stored local machine endian order
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  * @endian: non zero, if the local host has big endian order
  *
  * This sets the endian order for the local machine.
  */
-void tep_set_local_bigendian(struct tep_handle *pevent, enum tep_endian endian)
+void tep_set_local_bigendian(struct tep_handle *tep, enum tep_endian endian)
 {
-	if (pevent)
-		pevent->host_bigendian = endian;
+	if (tep)
+		tep->host_bigendian = endian;
 }
 
 /**
  * tep_is_latency_format - get if the latency output format is configured
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This returns true if the latency output format is configured
- * If @pevent is NULL, false is returned.
+ * If @tep is NULL, false is returned.
  */
-bool tep_is_latency_format(struct tep_handle *pevent)
+bool tep_is_latency_format(struct tep_handle *tep)
 {
-	if (pevent)
-		return !!(pevent->latency_format);
+	if (tep)
+		return !!(tep->latency_format);
 	return false;
 }
 
 /**
  * tep_set_latency_format - set the latency output format
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  * @lat: non zero for latency output format
  *
  * This sets the latency output format
   */
-void tep_set_latency_format(struct tep_handle *pevent, int lat)
+void tep_set_latency_format(struct tep_handle *tep, int lat)
 {
-	if (pevent)
-		pevent->latency_format = lat;
+	if (tep)
+		tep->latency_format = lat;
 }
 
 /**
diff --git a/tools/lib/traceevent/event-parse-local.h b/tools/lib/traceevent/event-parse-local.h
index c5c8eb4c4ab7..6e16cdb3f555 100644
--- a/tools/lib/traceevent/event-parse-local.h
+++ b/tools/lib/traceevent/event-parse-local.h
@@ -94,8 +94,8 @@ struct tep_handle {
 void tep_free_event(struct tep_event *event);
 void tep_free_format_field(struct tep_format_field *field);
 
-unsigned short tep_data2host2(struct tep_handle *pevent, unsigned short data);
-unsigned int tep_data2host4(struct tep_handle *pevent, unsigned int data);
-unsigned long long tep_data2host8(struct tep_handle *pevent, unsigned long long data);
+unsigned short tep_data2host2(struct tep_handle *tep, unsigned short data);
+unsigned int tep_data2host4(struct tep_handle *tep, unsigned int data);
+unsigned long long tep_data2host8(struct tep_handle *tep, unsigned long long data);
 
 #endif /* _PARSE_EVENTS_INT_H */
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 4144c4e20e4e..6265d3bb72a1 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -200,13 +200,13 @@ static const char *find_cmdline(struct tep_handle *pevent, int pid)
 
 /**
  * tep_is_pid_registered - return if a pid has a cmdline registered
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @pid: The pid to check if it has a cmdline registered with.
  *
  * Returns true if the pid has a cmdline mapped to it
  * false otherwise.
  */
-bool tep_is_pid_registered(struct tep_handle *pevent, int pid)
+bool tep_is_pid_registered(struct tep_handle *tep, int pid)
 {
 	const struct tep_cmdline *comm;
 	struct tep_cmdline key;
@@ -214,13 +214,13 @@ bool tep_is_pid_registered(struct tep_handle *pevent, int pid)
 	if (!pid)
 		return true;
 
-	if (!pevent->cmdlines && cmdline_init(pevent))
+	if (!tep->cmdlines && cmdline_init(tep))
 		return false;
 
 	key.pid = pid;
 
-	comm = bsearch(&key, pevent->cmdlines, pevent->cmdline_count,
-		       sizeof(*pevent->cmdlines), cmdline_cmp);
+	comm = bsearch(&key, tep->cmdlines, tep->cmdline_count,
+		       sizeof(*tep->cmdlines), cmdline_cmp);
 
 	if (comm)
 		return true;
@@ -288,13 +288,13 @@ static int add_new_comm(struct tep_handle *pevent,
 	return 0;
 }
 
-static int _tep_register_comm(struct tep_handle *pevent,
+static int _tep_register_comm(struct tep_handle *tep,
 			      const char *comm, int pid, bool override)
 {
 	struct cmdline_list *item;
 
-	if (pevent->cmdlines)
-		return add_new_comm(pevent, comm, pid, override);
+	if (tep->cmdlines)
+		return add_new_comm(tep, comm, pid, override);
 
 	item = malloc(sizeof(*item));
 	if (!item)
@@ -309,17 +309,17 @@ static int _tep_register_comm(struct tep_handle *pevent,
 		return -1;
 	}
 	item->pid = pid;
-	item->next = pevent->cmdlist;
+	item->next = tep->cmdlist;
 
-	pevent->cmdlist = item;
-	pevent->cmdline_count++;
+	tep->cmdlist = item;
+	tep->cmdline_count++;
 
 	return 0;
 }
 
 /**
  * tep_register_comm - register a pid / comm mapping
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @comm: the command line to register
  * @pid: the pid to map the command line to
  *
@@ -327,14 +327,14 @@ static int _tep_register_comm(struct tep_handle *pevent,
  * a given pid. The comm is duplicated. If a command with the same pid
  * already exist, -1 is returned and errno is set to EEXIST
  */
-int tep_register_comm(struct tep_handle *pevent, const char *comm, int pid)
+int tep_register_comm(struct tep_handle *tep, const char *comm, int pid)
 {
-	return _tep_register_comm(pevent, comm, pid, false);
+	return _tep_register_comm(tep, comm, pid, false);
 }
 
 /**
  * tep_override_comm - register a pid / comm mapping
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @comm: the command line to register
  * @pid: the pid to map the command line to
  *
@@ -342,19 +342,19 @@ int tep_register_comm(struct tep_handle *pevent, const char *comm, int pid)
  * a given pid. The comm is duplicated. If a command with the same pid
  * already exist, the command string is udapted with the new one
  */
-int tep_override_comm(struct tep_handle *pevent, const char *comm, int pid)
+int tep_override_comm(struct tep_handle *tep, const char *comm, int pid)
 {
-	if (!pevent->cmdlines && cmdline_init(pevent)) {
+	if (!tep->cmdlines && cmdline_init(tep)) {
 		errno = ENOMEM;
 		return -1;
 	}
-	return _tep_register_comm(pevent, comm, pid, true);
+	return _tep_register_comm(tep, comm, pid, true);
 }
 
-int tep_register_trace_clock(struct tep_handle *pevent, const char *trace_clock)
+int tep_register_trace_clock(struct tep_handle *tep, const char *trace_clock)
 {
-	pevent->trace_clock = strdup(trace_clock);
-	if (!pevent->trace_clock) {
+	tep->trace_clock = strdup(trace_clock);
+	if (!tep->trace_clock) {
 		errno = ENOMEM;
 		return -1;
 	}
@@ -472,15 +472,14 @@ struct func_resolver {
 
 /**
  * tep_set_function_resolver - set an alternative function resolver
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @resolver: function to be used
  * @priv: resolver function private state.
  *
  * Some tools may have already a way to resolve kernel functions, allow them to
- * keep using it instead of duplicating all the entries inside
- * pevent->funclist.
+ * keep using it instead of duplicating all the entries inside tep->funclist.
  */
-int tep_set_function_resolver(struct tep_handle *pevent,
+int tep_set_function_resolver(struct tep_handle *tep,
 			      tep_func_resolver_t *func, void *priv)
 {
 	struct func_resolver *resolver = malloc(sizeof(*resolver));
@@ -491,23 +490,23 @@ int tep_set_function_resolver(struct tep_handle *pevent,
 	resolver->func = func;
 	resolver->priv = priv;
 
-	free(pevent->func_resolver);
-	pevent->func_resolver = resolver;
+	free(tep->func_resolver);
+	tep->func_resolver = resolver;
 
 	return 0;
 }
 
 /**
  * tep_reset_function_resolver - reset alternative function resolver
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  *
  * Stop using whatever alternative resolver was set, use the default
  * one instead.
  */
-void tep_reset_function_resolver(struct tep_handle *pevent)
+void tep_reset_function_resolver(struct tep_handle *tep)
 {
-	free(pevent->func_resolver);
-	pevent->func_resolver = NULL;
+	free(tep->func_resolver);
+	tep->func_resolver = NULL;
 }
 
 static struct func_map *
@@ -531,18 +530,18 @@ find_func(struct tep_handle *pevent, unsigned long long addr)
 
 /**
  * tep_find_function - find a function by a given address
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @addr: the address to find the function with
  *
  * Returns a pointer to the function stored that has the given
  * address. Note, the address does not have to be exact, it
  * will select the function that would contain the address.
  */
-const char *tep_find_function(struct tep_handle *pevent, unsigned long long addr)
+const char *tep_find_function(struct tep_handle *tep, unsigned long long addr)
 {
 	struct func_map *map;
 
-	map = find_func(pevent, addr);
+	map = find_func(tep, addr);
 	if (!map)
 		return NULL;
 
@@ -551,7 +550,7 @@ const char *tep_find_function(struct tep_handle *pevent, unsigned long long addr
 
 /**
  * tep_find_function_address - find a function address by a given address
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @addr: the address to find the function with
  *
  * Returns the address the function starts at. This can be used in
@@ -559,11 +558,11 @@ const char *tep_find_function(struct tep_handle *pevent, unsigned long long addr
  * name and the function offset.
  */
 unsigned long long
-tep_find_function_address(struct tep_handle *pevent, unsigned long long addr)
+tep_find_function_address(struct tep_handle *tep, unsigned long long addr)
 {
 	struct func_map *map;
 
-	map = find_func(pevent, addr);
+	map = find_func(tep, addr);
 	if (!map)
 		return 0;
 
@@ -572,7 +571,7 @@ tep_find_function_address(struct tep_handle *pevent, unsigned long long addr)
 
 /**
  * tep_register_function - register a function with a given address
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @function: the function name to register
  * @addr: the address the function starts at
  * @mod: the kernel module the function may be in (NULL for none)
@@ -580,7 +579,7 @@ tep_find_function_address(struct tep_handle *pevent, unsigned long long addr)
  * This registers a function name with an address and module.
  * The @func passed in is duplicated.
  */
-int tep_register_function(struct tep_handle *pevent, char *func,
+int tep_register_function(struct tep_handle *tep, char *func,
 			  unsigned long long addr, char *mod)
 {
 	struct func_list *item = malloc(sizeof(*item));
@@ -588,7 +587,7 @@ int tep_register_function(struct tep_handle *pevent, char *func,
 	if (!item)
 		return -1;
 
-	item->next = pevent->funclist;
+	item->next = tep->funclist;
 	item->func = strdup(func);
 	if (!item->func)
 		goto out_free;
@@ -601,8 +600,8 @@ int tep_register_function(struct tep_handle *pevent, char *func,
 		item->mod = NULL;
 	item->addr = addr;
 
-	pevent->funclist = item;
-	pevent->func_count++;
+	tep->funclist = item;
+	tep->func_count++;
 
 	return 0;
 
@@ -617,23 +616,23 @@ int tep_register_function(struct tep_handle *pevent, char *func,
 
 /**
  * tep_print_funcs - print out the stored functions
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  *
  * This prints out the stored functions.
  */
-void tep_print_funcs(struct tep_handle *pevent)
+void tep_print_funcs(struct tep_handle *tep)
 {
 	int i;
 
-	if (!pevent->func_map)
-		func_map_init(pevent);
+	if (!tep->func_map)
+		func_map_init(tep);
 
-	for (i = 0; i < (int)pevent->func_count; i++) {
+	for (i = 0; i < (int)tep->func_count; i++) {
 		printf("%016llx %s",
-		       pevent->func_map[i].addr,
-		       pevent->func_map[i].func);
-		if (pevent->func_map[i].mod)
-			printf(" [%s]\n", pevent->func_map[i].mod);
+		       tep->func_map[i].addr,
+		       tep->func_map[i].func);
+		if (tep->func_map[i].mod)
+			printf(" [%s]\n", tep->func_map[i].mod);
 		else
 			printf("\n");
 	}
@@ -713,14 +712,14 @@ find_printk(struct tep_handle *pevent, unsigned long long addr)
 
 /**
  * tep_register_print_string - register a string by its address
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @fmt: the string format to register
  * @addr: the address the string was located at
  *
  * This registers a string by the address it was stored in the kernel.
  * The @fmt passed in is duplicated.
  */
-int tep_register_print_string(struct tep_handle *pevent, const char *fmt,
+int tep_register_print_string(struct tep_handle *tep, const char *fmt,
 			      unsigned long long addr)
 {
 	struct printk_list *item = malloc(sizeof(*item));
@@ -729,7 +728,7 @@ int tep_register_print_string(struct tep_handle *pevent, const char *fmt,
 	if (!item)
 		return -1;
 
-	item->next = pevent->printklist;
+	item->next = tep->printklist;
 	item->addr = addr;
 
 	/* Strip off quotes and '\n' from the end */
@@ -747,8 +746,8 @@ int tep_register_print_string(struct tep_handle *pevent, const char *fmt,
 	if (strcmp(p, "\\n") == 0)
 		*p = 0;
 
-	pevent->printklist = item;
-	pevent->printk_count++;
+	tep->printklist = item;
+	tep->printk_count++;
 
 	return 0;
 
@@ -760,21 +759,21 @@ int tep_register_print_string(struct tep_handle *pevent, const char *fmt,
 
 /**
  * tep_print_printk - print out the stored strings
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  *
  * This prints the string formats that were stored.
  */
-void tep_print_printk(struct tep_handle *pevent)
+void tep_print_printk(struct tep_handle *tep)
 {
 	int i;
 
-	if (!pevent->printk_map)
-		printk_map_init(pevent);
+	if (!tep->printk_map)
+		printk_map_init(tep);
 
-	for (i = 0; i < (int)pevent->printk_count; i++) {
+	for (i = 0; i < (int)tep->printk_count; i++) {
 		printf("%016llx %s\n",
-		       pevent->printk_map[i].addr,
-		       pevent->printk_map[i].printk);
+		       tep->printk_map[i].addr,
+		       tep->printk_map[i].printk);
 	}
 }
 
@@ -1184,7 +1183,7 @@ static enum tep_event_type read_token(char **tok)
 }
 
 /**
- * tep_read_token - access to utilities to use the pevent parser
+ * tep_read_token - access to utilities to use the tep parser
  * @tok: The token to return
  *
  * This will parse tokens from the string given by
@@ -3357,14 +3356,14 @@ tep_find_any_field(struct tep_event *event, const char *name)
 
 /**
  * tep_read_number - read a number from data
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @ptr: the raw data
  * @size: the size of the data that holds the number
  *
  * Returns the number (converted to host) from the
  * raw data.
  */
-unsigned long long tep_read_number(struct tep_handle *pevent,
+unsigned long long tep_read_number(struct tep_handle *tep,
 				   const void *ptr, int size)
 {
 	unsigned long long val;
@@ -3373,12 +3372,12 @@ unsigned long long tep_read_number(struct tep_handle *pevent,
 	case 1:
 		return *(unsigned char *)ptr;
 	case 2:
-		return tep_data2host2(pevent, *(unsigned short *)ptr);
+		return tep_data2host2(tep, *(unsigned short *)ptr);
 	case 4:
-		return tep_data2host4(pevent, *(unsigned int *)ptr);
+		return tep_data2host4(tep, *(unsigned int *)ptr);
 	case 8:
 		memcpy(&val, (ptr), sizeof(unsigned long long));
-		return tep_data2host8(pevent, val);
+		return tep_data2host8(tep, val);
 	default:
 		/* BUG! */
 		return 0;
@@ -3499,28 +3498,28 @@ static int events_id_cmp(const void *a, const void *b);
 
 /**
  * tep_find_event - find an event by given id
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @id: the id of the event
  *
  * Returns an event that has a given @id.
  */
-struct tep_event *tep_find_event(struct tep_handle *pevent, int id)
+struct tep_event *tep_find_event(struct tep_handle *tep, int id)
 {
 	struct tep_event **eventptr;
 	struct tep_event key;
 	struct tep_event *pkey = &key;
 
 	/* Check cache first */
-	if (pevent->last_event && pevent->last_event->id == id)
-		return pevent->last_event;
+	if (tep->last_event && tep->last_event->id == id)
+		return tep->last_event;
 
 	key.id = id;
 
-	eventptr = bsearch(&pkey, pevent->events, pevent->nr_events,
-			   sizeof(*pevent->events), events_id_cmp);
+	eventptr = bsearch(&pkey, tep->events, tep->nr_events,
+			   sizeof(*tep->events), events_id_cmp);
 
 	if (eventptr) {
-		pevent->last_event = *eventptr;
+		tep->last_event = *eventptr;
 		return *eventptr;
 	}
 
@@ -3529,7 +3528,7 @@ struct tep_event *tep_find_event(struct tep_handle *pevent, int id)
 
 /**
  * tep_find_event_by_name - find an event by given name
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @sys: the system name to search for
  * @name: the name of the event to search for
  *
@@ -3537,19 +3536,19 @@ struct tep_event *tep_find_event(struct tep_handle *pevent, int id)
  * @sys. If @sys is NULL the first event with @name is returned.
  */
 struct tep_event *
-tep_find_event_by_name(struct tep_handle *pevent,
+tep_find_event_by_name(struct tep_handle *tep,
 		       const char *sys, const char *name)
 {
 	struct tep_event *event = NULL;
 	int i;
 
-	if (pevent->last_event &&
-	    strcmp(pevent->last_event->name, name) == 0 &&
-	    (!sys || strcmp(pevent->last_event->system, sys) == 0))
-		return pevent->last_event;
+	if (tep->last_event &&
+	    strcmp(tep->last_event->name, name) == 0 &&
+	    (!sys || strcmp(tep->last_event->system, sys) == 0))
+		return tep->last_event;
 
-	for (i = 0; i < pevent->nr_events; i++) {
-		event = pevent->events[i];
+	for (i = 0; i < tep->nr_events; i++) {
+		event = tep->events[i];
 		if (strcmp(event->name, name) == 0) {
 			if (!sys)
 				break;
@@ -3557,10 +3556,10 @@ tep_find_event_by_name(struct tep_handle *pevent,
 				break;
 		}
 	}
-	if (i == pevent->nr_events)
+	if (i == tep->nr_events)
 		event = NULL;
 
-	pevent->last_event = event;
+	tep->last_event = event;
 	return event;
 }
 
@@ -5172,7 +5171,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_e
 
 /**
  * tep_data_latency_format - parse the data for the latency format
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @s: the trace_seq to write to
  * @record: the record to read from
  *
@@ -5180,7 +5179,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_e
  * need rescheduling, in hard/soft interrupt, preempt count
  * and lock depth) and places it into the trace_seq.
  */
-void tep_data_latency_format(struct tep_handle *pevent,
+void tep_data_latency_format(struct tep_handle *tep,
 			     struct trace_seq *s, struct tep_record *record)
 {
 	static int check_lock_depth = 1;
@@ -5195,13 +5194,13 @@ void tep_data_latency_format(struct tep_handle *pevent,
 	int softirq;
 	void *data = record->data;
 
-	lat_flags = parse_common_flags(pevent, data);
-	pc = parse_common_pc(pevent, data);
+	lat_flags = parse_common_flags(tep, data);
+	pc = parse_common_pc(tep, data);
 	/* lock_depth may not always exist */
 	if (lock_depth_exists)
-		lock_depth = parse_common_lock_depth(pevent, data);
+		lock_depth = parse_common_lock_depth(tep, data);
 	else if (check_lock_depth) {
-		lock_depth = parse_common_lock_depth(pevent, data);
+		lock_depth = parse_common_lock_depth(tep, data);
 		if (lock_depth < 0)
 			check_lock_depth = 0;
 		else
@@ -5210,9 +5209,9 @@ void tep_data_latency_format(struct tep_handle *pevent,
 
 	/* migrate_disable may not always exist */
 	if (migrate_disable_exists)
-		migrate_disable = parse_common_migrate_disable(pevent, data);
+		migrate_disable = parse_common_migrate_disable(tep, data);
 	else if (check_migrate_disable) {
-		migrate_disable = parse_common_migrate_disable(pevent, data);
+		migrate_disable = parse_common_migrate_disable(tep, data);
 		if (migrate_disable < 0)
 			check_migrate_disable = 0;
 		else
@@ -5255,67 +5254,67 @@ void tep_data_latency_format(struct tep_handle *pevent,
 
 /**
  * tep_data_type - parse out the given event type
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @rec: the record to read from
  *
  * This returns the event id from the @rec.
  */
-int tep_data_type(struct tep_handle *pevent, struct tep_record *rec)
+int tep_data_type(struct tep_handle *tep, struct tep_record *rec)
 {
-	return trace_parse_common_type(pevent, rec->data);
+	return trace_parse_common_type(tep, rec->data);
 }
 
 /**
  * tep_data_pid - parse the PID from record
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @rec: the record to parse
  *
  * This returns the PID from a record.
  */
-int tep_data_pid(struct tep_handle *pevent, struct tep_record *rec)
+int tep_data_pid(struct tep_handle *tep, struct tep_record *rec)
 {
-	return parse_common_pid(pevent, rec->data);
+	return parse_common_pid(tep, rec->data);
 }
 
 /**
  * tep_data_preempt_count - parse the preempt count from the record
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @rec: the record to parse
  *
  * This returns the preempt count from a record.
  */
-int tep_data_preempt_count(struct tep_handle *pevent, struct tep_record *rec)
+int tep_data_preempt_count(struct tep_handle *tep, struct tep_record *rec)
 {
-	return parse_common_pc(pevent, rec->data);
+	return parse_common_pc(tep, rec->data);
 }
 
 /**
  * tep_data_flags - parse the latency flags from the record
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @rec: the record to parse
  *
  * This returns the latency flags from a record.
  *
  *  Use trace_flag_type enum for the flags (see event-parse.h).
  */
-int tep_data_flags(struct tep_handle *pevent, struct tep_record *rec)
+int tep_data_flags(struct tep_handle *tep, struct tep_record *rec)
 {
-	return parse_common_flags(pevent, rec->data);
+	return parse_common_flags(tep, rec->data);
 }
 
 /**
  * tep_data_comm_from_pid - return the command line from PID
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @pid: the PID of the task to search for
  *
  * This returns a pointer to the command line that has the given
  * @pid.
  */
-const char *tep_data_comm_from_pid(struct tep_handle *pevent, int pid)
+const char *tep_data_comm_from_pid(struct tep_handle *tep, int pid)
 {
 	const char *comm;
 
-	comm = find_cmdline(pevent, pid);
+	comm = find_cmdline(tep, pid);
 	return comm;
 }
 
@@ -5337,7 +5336,7 @@ pid_from_cmdlist(struct tep_handle *pevent, const char *comm, struct tep_cmdline
 
 /**
  * tep_data_pid_from_comm - return the pid from a given comm
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @comm: the cmdline to find the pid from
  * @next: the cmdline structure to find the next comm
  *
@@ -5348,7 +5347,7 @@ pid_from_cmdlist(struct tep_handle *pevent, const char *comm, struct tep_cmdline
  * next pid.
  * Also, it does a linear search, so it may be slow.
  */
-struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *pevent, const char *comm,
+struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *tep, const char *comm,
 					   struct tep_cmdline *next)
 {
 	struct tep_cmdline *cmdline;
@@ -5357,25 +5356,25 @@ struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *pevent, const char
 	 * If the cmdlines have not been converted yet, then use
 	 * the list.
 	 */
-	if (!pevent->cmdlines)
-		return pid_from_cmdlist(pevent, comm, next);
+	if (!tep->cmdlines)
+		return pid_from_cmdlist(tep, comm, next);
 
 	if (next) {
 		/*
 		 * The next pointer could have been still from
 		 * a previous call before cmdlines were created
 		 */
-		if (next < pevent->cmdlines ||
-		    next >= pevent->cmdlines + pevent->cmdline_count)
+		if (next < tep->cmdlines ||
+		    next >= tep->cmdlines + tep->cmdline_count)
 			next = NULL;
 		else
 			cmdline  = next++;
 	}
 
 	if (!next)
-		cmdline = pevent->cmdlines;
+		cmdline = tep->cmdlines;
 
-	while (cmdline < pevent->cmdlines + pevent->cmdline_count) {
+	while (cmdline < tep->cmdlines + tep->cmdline_count) {
 		if (strcmp(cmdline->comm, comm) == 0)
 			return cmdline;
 		cmdline++;
@@ -5385,12 +5384,13 @@ struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *pevent, const char
 
 /**
  * tep_cmdline_pid - return the pid associated to a given cmdline
+ * @tep: a handle to the trace event parser context
  * @cmdline: The cmdline structure to get the pid from
  *
  * Returns the pid for a give cmdline. If @cmdline is NULL, then
  * -1 is returned.
  */
-int tep_cmdline_pid(struct tep_handle *pevent, struct tep_cmdline *cmdline)
+int tep_cmdline_pid(struct tep_handle *tep, struct tep_cmdline *cmdline)
 {
 	struct cmdline_list *cmdlist = (struct cmdline_list *)cmdline;
 
@@ -5401,9 +5401,9 @@ int tep_cmdline_pid(struct tep_handle *pevent, struct tep_cmdline *cmdline)
 	 * If cmdlines have not been created yet, or cmdline is
 	 * not part of the array, then treat it as a cmdlist instead.
 	 */
-	if (!pevent->cmdlines ||
-	    cmdline < pevent->cmdlines ||
-	    cmdline >= pevent->cmdlines + pevent->cmdline_count)
+	if (!tep->cmdlines ||
+	    cmdline < tep->cmdlines ||
+	    cmdline >= tep->cmdlines + tep->cmdline_count)
 		return cmdlist->pid;
 
 	return cmdline->pid;
@@ -5453,14 +5453,14 @@ static bool is_timestamp_in_us(char *trace_clock, bool use_trace_clock)
 
 /**
  * tep_find_event_by_record - return the event from a given record
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @record: The record to get the event from
  *
  * Returns the associated event for a given record, or NULL if non is
  * is found.
  */
 struct tep_event *
-tep_find_event_by_record(struct tep_handle *pevent, struct tep_record *record)
+tep_find_event_by_record(struct tep_handle *tep, struct tep_record *record)
 {
 	int type;
 
@@ -5469,21 +5469,21 @@ tep_find_event_by_record(struct tep_handle *pevent, struct tep_record *record)
 		return NULL;
 	}
 
-	type = trace_parse_common_type(pevent, record->data);
+	type = trace_parse_common_type(tep, record->data);
 
-	return tep_find_event(pevent, type);
+	return tep_find_event(tep, type);
 }
 
 /**
  * tep_print_event_task - Write the event task comm, pid and CPU
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @s: the trace_seq to write to
  * @event: the handle to the record's event
  * @record: The record to get the event from
  *
  * Writes the tasks comm, pid and CPU to @s.
  */
-void tep_print_event_task(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event_task(struct tep_handle *tep, struct trace_seq *s,
 			  struct tep_event *event,
 			  struct tep_record *record)
 {
@@ -5491,27 +5491,26 @@ void tep_print_event_task(struct tep_handle *pevent, struct trace_seq *s,
 	const char *comm;
 	int pid;
 
-	pid = parse_common_pid(pevent, data);
-	comm = find_cmdline(pevent, pid);
+	pid = parse_common_pid(tep, data);
+	comm = find_cmdline(tep, pid);
 
-	if (pevent->latency_format) {
-		trace_seq_printf(s, "%8.8s-%-5d %3d",
-		       comm, pid, record->cpu);
-	} else
+	if (tep->latency_format)
+		trace_seq_printf(s, "%8.8s-%-5d %3d", comm, pid, record->cpu);
+	else
 		trace_seq_printf(s, "%16s-%-5d [%03d]", comm, pid, record->cpu);
 }
 
 /**
  * tep_print_event_time - Write the event timestamp
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @s: the trace_seq to write to
  * @event: the handle to the record's event
  * @record: The record to get the event from
- * @use_trace_clock: Set to parse according to the @pevent->trace_clock
+ * @use_trace_clock: Set to parse according to the @tep->trace_clock
  *
  * Writes the timestamp of the record into @s.
  */
-void tep_print_event_time(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event_time(struct tep_handle *tep, struct trace_seq *s,
 			  struct tep_event *event,
 			  struct tep_record *record,
 			  bool use_trace_clock)
@@ -5522,19 +5521,18 @@ void tep_print_event_time(struct tep_handle *pevent, struct trace_seq *s,
 	int p;
 	bool use_usec_format;
 
-	use_usec_format = is_timestamp_in_us(pevent->trace_clock,
-							use_trace_clock);
+	use_usec_format = is_timestamp_in_us(tep->trace_clock, use_trace_clock);
 	if (use_usec_format) {
 		secs = record->ts / NSEC_PER_SEC;
 		nsecs = record->ts - secs * NSEC_PER_SEC;
 	}
 
-	if (pevent->latency_format) {
-		tep_data_latency_format(pevent, s, record);
+	if (tep->latency_format) {
+		tep_data_latency_format(tep, s, record);
 	}
 
 	if (use_usec_format) {
-		if (pevent->flags & TEP_NSEC_OUTPUT) {
+		if (tep->flags & TEP_NSEC_OUTPUT) {
 			usecs = nsecs;
 			p = 9;
 		} else {
@@ -5554,14 +5552,14 @@ void tep_print_event_time(struct tep_handle *pevent, struct trace_seq *s,
 
 /**
  * tep_print_event_data - Write the event data section
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @s: the trace_seq to write to
  * @event: the handle to the record's event
  * @record: The record to get the event from
  *
  * Writes the parsing of the record's data to @s.
  */
-void tep_print_event_data(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event_data(struct tep_handle *tep, struct trace_seq *s,
 			  struct tep_event *event,
 			  struct tep_record *record)
 {
@@ -5578,15 +5576,15 @@ void tep_print_event_data(struct tep_handle *pevent, struct trace_seq *s,
 	tep_event_info(s, event, record);
 }
 
-void tep_print_event(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event(struct tep_handle *tep, struct trace_seq *s,
 		     struct tep_record *record, bool use_trace_clock)
 {
 	struct tep_event *event;
 
-	event = tep_find_event_by_record(pevent, record);
+	event = tep_find_event_by_record(tep, record);
 	if (!event) {
 		int i;
-		int type = trace_parse_common_type(pevent, record->data);
+		int type = trace_parse_common_type(tep, record->data);
 
 		do_warning("ug! no event found for type %d", type);
 		trace_seq_printf(s, "[UNKNOWN TYPE %d]", type);
@@ -5596,9 +5594,9 @@ void tep_print_event(struct tep_handle *pevent, struct trace_seq *s,
 		return;
 	}
 
-	tep_print_event_task(pevent, s, event, record);
-	tep_print_event_time(pevent, s, event, record, use_trace_clock);
-	tep_print_event_data(pevent, s, event, record);
+	tep_print_event_task(tep, s, event, record);
+	tep_print_event_time(tep, s, event, record, use_trace_clock);
+	tep_print_event_data(tep, s, event, record);
 }
 
 static int events_id_cmp(const void *a, const void *b)
@@ -5649,29 +5647,30 @@ static int events_system_cmp(const void *a, const void *b)
 	return events_id_cmp(a, b);
 }
 
-struct tep_event **tep_list_events(struct tep_handle *pevent, enum tep_event_sort_type sort_type)
+struct tep_event **tep_list_events(struct tep_handle *tep,
+				   enum tep_event_sort_type sort_type)
 {
 	struct tep_event **events;
 	int (*sort)(const void *a, const void *b);
 
-	events = pevent->sort_events;
+	events = tep->sort_events;
 
-	if (events && pevent->last_type == sort_type)
+	if (events && tep->last_type == sort_type)
 		return events;
 
 	if (!events) {
-		events = malloc(sizeof(*events) * (pevent->nr_events + 1));
+		events = malloc(sizeof(*events) * (tep->nr_events + 1));
 		if (!events)
 			return NULL;
 
-		memcpy(events, pevent->events, sizeof(*events) * pevent->nr_events);
-		events[pevent->nr_events] = NULL;
+		memcpy(events, tep->events, sizeof(*events) * tep->nr_events);
+		events[tep->nr_events] = NULL;
 
-		pevent->sort_events = events;
+		tep->sort_events = events;
 
 		/* the internal events are sorted by id */
 		if (sort_type == TEP_EVENT_SORT_ID) {
-			pevent->last_type = sort_type;
+			tep->last_type = sort_type;
 			return events;
 		}
 	}
@@ -5690,8 +5689,8 @@ struct tep_event **tep_list_events(struct tep_handle *pevent, enum tep_event_sor
 		return events;
 	}
 
-	qsort(events, pevent->nr_events, sizeof(*events), sort);
-	pevent->last_type = sort_type;
+	qsort(events, tep->nr_events, sizeof(*events), sort);
+	tep->last_type = sort_type;
 
 	return events;
 }
@@ -5950,7 +5949,7 @@ static void parse_header_field(const char *field,
 
 /**
  * tep_parse_header_page - parse the data stored in the header page
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @buf: the buffer storing the header page format string
  * @size: the size of @buf
  * @long_size: the long size to use if there is no header
@@ -5960,7 +5959,7 @@ static void parse_header_field(const char *field,
  *
  * /sys/kernel/debug/tracing/events/header_page
  */
-int tep_parse_header_page(struct tep_handle *pevent, char *buf, unsigned long size,
+int tep_parse_header_page(struct tep_handle *tep, char *buf, unsigned long size,
 			  int long_size)
 {
 	int ignore;
@@ -5970,22 +5969,22 @@ int tep_parse_header_page(struct tep_handle *pevent, char *buf, unsigned long si
 		 * Old kernels did not have header page info.
 		 * Sorry but we just use what we find here in user space.
 		 */
-		pevent->header_page_ts_size = sizeof(long long);
-		pevent->header_page_size_size = long_size;
-		pevent->header_page_data_offset = sizeof(long long) + long_size;
-		pevent->old_format = 1;
+		tep->header_page_ts_size = sizeof(long long);
+		tep->header_page_size_size = long_size;
+		tep->header_page_data_offset = sizeof(long long) + long_size;
+		tep->old_format = 1;
 		return -1;
 	}
 	init_input_buf(buf, size);
 
-	parse_header_field("timestamp", &pevent->header_page_ts_offset,
-			   &pevent->header_page_ts_size, 1);
-	parse_header_field("commit", &pevent->header_page_size_offset,
-			   &pevent->header_page_size_size, 1);
-	parse_header_field("overwrite", &pevent->header_page_overwrite,
+	parse_header_field("timestamp", &tep->header_page_ts_offset,
+			   &tep->header_page_ts_size, 1);
+	parse_header_field("commit", &tep->header_page_size_offset,
+			   &tep->header_page_size_size, 1);
+	parse_header_field("overwrite", &tep->header_page_overwrite,
 			   &ignore, 0);
-	parse_header_field("data", &pevent->header_page_data_offset,
-			   &pevent->header_page_data_size, 1);
+	parse_header_field("data", &tep->header_page_data_offset,
+			   &tep->header_page_data_size, 1);
 
 	return 0;
 }
@@ -6191,7 +6190,7 @@ __parse_event(struct tep_handle *pevent,
 
 /**
  * tep_parse_format - parse the event format
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @eventp: returned format
  * @buf: the buffer storing the event format string
  * @size: the size of @buf
@@ -6204,17 +6203,17 @@ __parse_event(struct tep_handle *pevent,
  *
  * /sys/kernel/debug/tracing/events/.../.../format
  */
-enum tep_errno tep_parse_format(struct tep_handle *pevent,
+enum tep_errno tep_parse_format(struct tep_handle *tep,
 				struct tep_event **eventp,
 				const char *buf,
 				unsigned long size, const char *sys)
 {
-	return __parse_event(pevent, eventp, buf, size, sys);
+	return __parse_event(tep, eventp, buf, size, sys);
 }
 
 /**
  * tep_parse_event - parse the event format
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @buf: the buffer storing the event format string
  * @size: the size of @buf
  * @sys: the system the event belongs to
@@ -6226,15 +6225,15 @@ enum tep_errno tep_parse_format(struct tep_handle *pevent,
  *
  * /sys/kernel/debug/tracing/events/.../.../format
  */
-enum tep_errno tep_parse_event(struct tep_handle *pevent, const char *buf,
+enum tep_errno tep_parse_event(struct tep_handle *tep, const char *buf,
 			       unsigned long size, const char *sys)
 {
 	struct tep_event *event = NULL;
 	enum tep_errno ret;
 
-	ret = __parse_event(pevent, &event, buf, size, sys);
+	ret = __parse_event(tep, &event, buf, size, sys);
 	if (ret != TEP_ERRNO__SUCCESS)
-		pevent->parsing_failures++;
+		tep->parsing_failures++;
 
 	return ret;
 }
@@ -6476,7 +6475,7 @@ static void free_func_handle(struct tep_function_handler *func)
 
 /**
  * tep_register_print_function - register a helper function
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @func: the function to process the helper function
  * @ret_type: the return type of the helper function
  * @name: the name of the helper function
@@ -6489,7 +6488,7 @@ static void free_func_handle(struct tep_function_handler *func)
  * The @parameters is a variable list of tep_func_arg_type enums that
  * must end with TEP_FUNC_ARG_VOID.
  */
-int tep_register_print_function(struct tep_handle *pevent,
+int tep_register_print_function(struct tep_handle *tep,
 				tep_func_handler func,
 				enum tep_func_arg_type ret_type,
 				char *name, ...)
@@ -6501,7 +6500,7 @@ int tep_register_print_function(struct tep_handle *pevent,
 	va_list ap;
 	int ret;
 
-	func_handle = find_func_handler(pevent, name);
+	func_handle = find_func_handler(tep, name);
 	if (func_handle) {
 		/*
 		 * This is most like caused by the users own
@@ -6509,7 +6508,7 @@ int tep_register_print_function(struct tep_handle *pevent,
 		 * system defaults.
 		 */
 		pr_stat("override of function helper '%s'", name);
-		remove_func_handler(pevent, name);
+		remove_func_handler(tep, name);
 	}
 
 	func_handle = calloc(1, sizeof(*func_handle));
@@ -6556,8 +6555,8 @@ int tep_register_print_function(struct tep_handle *pevent,
 	}
 	va_end(ap);
 
-	func_handle->next = pevent->func_handlers;
-	pevent->func_handlers = func_handle;
+	func_handle->next = tep->func_handlers;
+	tep->func_handlers = func_handle;
 
 	return 0;
  out_free:
@@ -6568,7 +6567,7 @@ int tep_register_print_function(struct tep_handle *pevent,
 
 /**
  * tep_unregister_print_function - unregister a helper function
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @func: the function to process the helper function
  * @name: the name of the helper function
  *
@@ -6576,14 +6575,14 @@ int tep_register_print_function(struct tep_handle *pevent,
  *
  * Returns 0 if the handler was removed successully, -1 otherwise.
  */
-int tep_unregister_print_function(struct tep_handle *pevent,
+int tep_unregister_print_function(struct tep_handle *tep,
 				  tep_func_handler func, char *name)
 {
 	struct tep_function_handler *func_handle;
 
-	func_handle = find_func_handler(pevent, name);
+	func_handle = find_func_handler(tep, name);
 	if (func_handle && func_handle->func == func) {
-		remove_func_handler(pevent, name);
+		remove_func_handler(tep, name);
 		return 0;
 	}
 	return -1;
@@ -6614,7 +6613,7 @@ static struct tep_event *search_event(struct tep_handle *pevent, int id,
 
 /**
  * tep_register_event_handler - register a way to parse an event
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @id: the id of the event to register
  * @sys_name: the system name the event belongs to
  * @event_name: the name of the event
@@ -6635,14 +6634,14 @@ static struct tep_event *search_event(struct tep_handle *pevent, int id,
  *  negative TEP_ERRNO_... in case of an error
  *
  */
-int tep_register_event_handler(struct tep_handle *pevent, int id,
+int tep_register_event_handler(struct tep_handle *tep, int id,
 			       const char *sys_name, const char *event_name,
 			       tep_event_handler_func func, void *context)
 {
 	struct tep_event *event;
 	struct event_handler *handle;
 
-	event = search_event(pevent, id, sys_name, event_name);
+	event = search_event(tep, id, sys_name, event_name);
 	if (event == NULL)
 		goto not_found;
 
@@ -6677,8 +6676,8 @@ int tep_register_event_handler(struct tep_handle *pevent, int id,
 	}
 
 	handle->func = func;
-	handle->next = pevent->handlers;
-	pevent->handlers = handle;
+	handle->next = tep->handlers;
+	tep->handlers = handle;
 	handle->context = context;
 
 	return TEP_REGISTER_SUCCESS;
@@ -6705,7 +6704,7 @@ static int handle_matches(struct event_handler *handler, int id,
 
 /**
  * tep_unregister_event_handler - unregister an existing event handler
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @id: the id of the event to unregister
  * @sys_name: the system name the handler belongs to
  * @event_name: the name of the event handler
@@ -6719,7 +6718,7 @@ static int handle_matches(struct event_handler *handler, int id,
  *
  * Returns 0 if handler was removed successfully, -1 if event was not found.
  */
-int tep_unregister_event_handler(struct tep_handle *pevent, int id,
+int tep_unregister_event_handler(struct tep_handle *tep, int id,
 				 const char *sys_name, const char *event_name,
 				 tep_event_handler_func func, void *context)
 {
@@ -6727,7 +6726,7 @@ int tep_unregister_event_handler(struct tep_handle *pevent, int id,
 	struct event_handler *handle;
 	struct event_handler **next;
 
-	event = search_event(pevent, id, sys_name, event_name);
+	event = search_event(tep, id, sys_name, event_name);
 	if (event == NULL)
 		goto not_found;
 
@@ -6741,7 +6740,7 @@ int tep_unregister_event_handler(struct tep_handle *pevent, int id,
 	}
 
 not_found:
-	for (next = &pevent->handlers; *next; next = &(*next)->next) {
+	for (next = &tep->handlers; *next; next = &(*next)->next) {
 		handle = *next;
 		if (handle_matches(handle, id, sys_name, event_name,
 				   func, context))
@@ -6758,7 +6757,7 @@ int tep_unregister_event_handler(struct tep_handle *pevent, int id,
 }
 
 /**
- * tep_alloc - create a pevent handle
+ * tep_alloc - create a tep handle
  */
 struct tep_handle *tep_alloc(void)
 {
@@ -6772,9 +6771,9 @@ struct tep_handle *tep_alloc(void)
 	return pevent;
 }
 
-void tep_ref(struct tep_handle *pevent)
+void tep_ref(struct tep_handle *tep)
 {
-	pevent->ref_count++;
+	tep->ref_count++;
 }
 
 int tep_get_ref(struct tep_handle *tep)
@@ -6824,10 +6823,10 @@ void tep_free_event(struct tep_event *event)
 }
 
 /**
- * tep_free - free a pevent handle
- * @pevent: the pevent handle to free
+ * tep_free - free a tep handle
+ * @tep: the tep handle to free
  */
-void tep_free(struct tep_handle *pevent)
+void tep_free(struct tep_handle *tep)
 {
 	struct cmdline_list *cmdlist, *cmdnext;
 	struct func_list *funclist, *funcnext;
@@ -6836,21 +6835,21 @@ void tep_free(struct tep_handle *pevent)
 	struct event_handler *handle;
 	int i;
 
-	if (!pevent)
+	if (!tep)
 		return;
 
-	cmdlist = pevent->cmdlist;
-	funclist = pevent->funclist;
-	printklist = pevent->printklist;
+	cmdlist = tep->cmdlist;
+	funclist = tep->funclist;
+	printklist = tep->printklist;
 
-	pevent->ref_count--;
-	if (pevent->ref_count)
+	tep->ref_count--;
+	if (tep->ref_count)
 		return;
 
-	if (pevent->cmdlines) {
-		for (i = 0; i < pevent->cmdline_count; i++)
-			free(pevent->cmdlines[i].comm);
-		free(pevent->cmdlines);
+	if (tep->cmdlines) {
+		for (i = 0; i < tep->cmdline_count; i++)
+			free(tep->cmdlines[i].comm);
+		free(tep->cmdlines);
 	}
 
 	while (cmdlist) {
@@ -6860,12 +6859,12 @@ void tep_free(struct tep_handle *pevent)
 		cmdlist = cmdnext;
 	}
 
-	if (pevent->func_map) {
-		for (i = 0; i < (int)pevent->func_count; i++) {
-			free(pevent->func_map[i].func);
-			free(pevent->func_map[i].mod);
+	if (tep->func_map) {
+		for (i = 0; i < (int)tep->func_count; i++) {
+			free(tep->func_map[i].func);
+			free(tep->func_map[i].mod);
 		}
-		free(pevent->func_map);
+		free(tep->func_map);
 	}
 
 	while (funclist) {
@@ -6876,16 +6875,16 @@ void tep_free(struct tep_handle *pevent)
 		funclist = funcnext;
 	}
 
-	while (pevent->func_handlers) {
-		func_handler = pevent->func_handlers;
-		pevent->func_handlers = func_handler->next;
+	while (tep->func_handlers) {
+		func_handler = tep->func_handlers;
+		tep->func_handlers = func_handler->next;
 		free_func_handle(func_handler);
 	}
 
-	if (pevent->printk_map) {
-		for (i = 0; i < (int)pevent->printk_count; i++)
-			free(pevent->printk_map[i].printk);
-		free(pevent->printk_map);
+	if (tep->printk_map) {
+		for (i = 0; i < (int)tep->printk_count; i++)
+			free(tep->printk_map[i].printk);
+		free(tep->printk_map);
 	}
 
 	while (printklist) {
@@ -6895,24 +6894,24 @@ void tep_free(struct tep_handle *pevent)
 		printklist = printknext;
 	}
 
-	for (i = 0; i < pevent->nr_events; i++)
-		tep_free_event(pevent->events[i]);
+	for (i = 0; i < tep->nr_events; i++)
+		tep_free_event(tep->events[i]);
 
-	while (pevent->handlers) {
-		handle = pevent->handlers;
-		pevent->handlers = handle->next;
+	while (tep->handlers) {
+		handle = tep->handlers;
+		tep->handlers = handle->next;
 		free_handler(handle);
 	}
 
-	free(pevent->trace_clock);
-	free(pevent->events);
-	free(pevent->sort_events);
-	free(pevent->func_resolver);
+	free(tep->trace_clock);
+	free(tep->events);
+	free(tep->sort_events);
+	free(tep->func_resolver);
 
-	free(pevent);
+	free(tep);
 }
 
-void tep_unref(struct tep_handle *pevent)
+void tep_unref(struct tep_handle *tep)
 {
-	tep_free(pevent);
+	tep_free(tep);
 }
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 02932d3d2632..77f3308274d1 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -64,8 +64,8 @@ typedef int (*tep_event_handler_func)(struct trace_seq *s,
 				      struct tep_event *event,
 				      void *context);
 
-typedef int (*tep_plugin_load_func)(struct tep_handle *pevent);
-typedef int (*tep_plugin_unload_func)(struct tep_handle *pevent);
+typedef int (*tep_plugin_load_func)(struct tep_handle *tep);
+typedef int (*tep_plugin_unload_func)(struct tep_handle *tep);
 
 struct tep_plugin_option {
 	struct tep_plugin_option	*next;
@@ -85,12 +85,12 @@ struct tep_plugin_option {
  * TEP_PLUGIN_LOADER:  (required)
  *   The function name to initialized the plugin.
  *
- *   int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+ *   int TEP_PLUGIN_LOADER(struct tep_handle *tep)
  *
  * TEP_PLUGIN_UNLOADER:  (optional)
  *   The function called just before unloading
  *
- *   int TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+ *   int TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
  *
  * TEP_PLUGIN_OPTIONS:  (optional)
  *   Plugin options that can be set before loading
@@ -393,9 +393,9 @@ struct tep_plugin_list;
 
 #define INVALID_PLUGIN_LIST_OPTION	((char **)((unsigned long)-1))
 
-struct tep_plugin_list *tep_load_plugins(struct tep_handle *pevent);
+struct tep_plugin_list *tep_load_plugins(struct tep_handle *tep);
 void tep_unload_plugins(struct tep_plugin_list *plugin_list,
-			struct tep_handle *pevent);
+			struct tep_handle *tep);
 char **tep_plugin_list_options(void);
 void tep_plugin_free_options_list(char **list);
 int tep_plugin_add_options(const char *name,
@@ -430,37 +430,37 @@ enum trace_flag_type {
 	TRACE_FLAG_SOFTIRQ		= 0x10,
 };
 
-int tep_set_function_resolver(struct tep_handle *pevent,
+int tep_set_function_resolver(struct tep_handle *tep,
 			      tep_func_resolver_t *func, void *priv);
-void tep_reset_function_resolver(struct tep_handle *pevent);
-int tep_register_comm(struct tep_handle *pevent, const char *comm, int pid);
-int tep_override_comm(struct tep_handle *pevent, const char *comm, int pid);
-int tep_register_trace_clock(struct tep_handle *pevent, const char *trace_clock);
-int tep_register_function(struct tep_handle *pevent, char *name,
+void tep_reset_function_resolver(struct tep_handle *tep);
+int tep_register_comm(struct tep_handle *tep, const char *comm, int pid);
+int tep_override_comm(struct tep_handle *tep, const char *comm, int pid);
+int tep_register_trace_clock(struct tep_handle *tep, const char *trace_clock);
+int tep_register_function(struct tep_handle *tep, char *name,
 			  unsigned long long addr, char *mod);
-int tep_register_print_string(struct tep_handle *pevent, const char *fmt,
+int tep_register_print_string(struct tep_handle *tep, const char *fmt,
 			      unsigned long long addr);
-bool tep_is_pid_registered(struct tep_handle *pevent, int pid);
+bool tep_is_pid_registered(struct tep_handle *tep, int pid);
 
-void tep_print_event_task(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event_task(struct tep_handle *tep, struct trace_seq *s,
 			  struct tep_event *event,
 			  struct tep_record *record);
-void tep_print_event_time(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event_time(struct tep_handle *tep, struct trace_seq *s,
 			  struct tep_event *event,
 			  struct tep_record *record,
 			  bool use_trace_clock);
-void tep_print_event_data(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event_data(struct tep_handle *tep, struct trace_seq *s,
 			  struct tep_event *event,
 			  struct tep_record *record);
-void tep_print_event(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event(struct tep_handle *tep, struct trace_seq *s,
 		     struct tep_record *record, bool use_trace_clock);
 
-int tep_parse_header_page(struct tep_handle *pevent, char *buf, unsigned long size,
+int tep_parse_header_page(struct tep_handle *tep, char *buf, unsigned long size,
 			  int long_size);
 
-enum tep_errno tep_parse_event(struct tep_handle *pevent, const char *buf,
+enum tep_errno tep_parse_event(struct tep_handle *tep, const char *buf,
 			       unsigned long size, const char *sys);
-enum tep_errno tep_parse_format(struct tep_handle *pevent,
+enum tep_errno tep_parse_format(struct tep_handle *tep,
 				struct tep_event **eventp,
 				const char *buf,
 				unsigned long size, const char *sys);
@@ -494,51 +494,51 @@ enum tep_reg_handler {
 	TEP_REGISTER_SUCCESS_OVERWRITE,
 };
 
-int tep_register_event_handler(struct tep_handle *pevent, int id,
+int tep_register_event_handler(struct tep_handle *tep, int id,
 			       const char *sys_name, const char *event_name,
 			       tep_event_handler_func func, void *context);
-int tep_unregister_event_handler(struct tep_handle *pevent, int id,
+int tep_unregister_event_handler(struct tep_handle *tep, int id,
 				 const char *sys_name, const char *event_name,
 				 tep_event_handler_func func, void *context);
-int tep_register_print_function(struct tep_handle *pevent,
+int tep_register_print_function(struct tep_handle *tep,
 				tep_func_handler func,
 				enum tep_func_arg_type ret_type,
 				char *name, ...);
-int tep_unregister_print_function(struct tep_handle *pevent,
+int tep_unregister_print_function(struct tep_handle *tep,
 				  tep_func_handler func, char *name);
 
 struct tep_format_field *tep_find_common_field(struct tep_event *event, const char *name);
 struct tep_format_field *tep_find_field(struct tep_event *event, const char *name);
 struct tep_format_field *tep_find_any_field(struct tep_event *event, const char *name);
 
-const char *tep_find_function(struct tep_handle *pevent, unsigned long long addr);
+const char *tep_find_function(struct tep_handle *tep, unsigned long long addr);
 unsigned long long
-tep_find_function_address(struct tep_handle *pevent, unsigned long long addr);
-unsigned long long tep_read_number(struct tep_handle *pevent, const void *ptr, int size);
+tep_find_function_address(struct tep_handle *tep, unsigned long long addr);
+unsigned long long tep_read_number(struct tep_handle *tep, const void *ptr, int size);
 int tep_read_number_field(struct tep_format_field *field, const void *data,
 			  unsigned long long *value);
 
 struct tep_event *tep_get_first_event(struct tep_handle *tep);
 struct tep_event *tep_get_event(struct tep_handle *tep, int index);
 int tep_get_events_count(struct tep_handle *tep);
-struct tep_event *tep_find_event(struct tep_handle *pevent, int id);
+struct tep_event *tep_find_event(struct tep_handle *tep, int id);
 
 struct tep_event *
-tep_find_event_by_name(struct tep_handle *pevent, const char *sys, const char *name);
+tep_find_event_by_name(struct tep_handle *tep, const char *sys, const char *name);
 struct tep_event *
-tep_find_event_by_record(struct tep_handle *pevent, struct tep_record *record);
+tep_find_event_by_record(struct tep_handle *tep, struct tep_record *record);
 
-void tep_data_latency_format(struct tep_handle *pevent,
+void tep_data_latency_format(struct tep_handle *tep,
 			     struct trace_seq *s, struct tep_record *record);
-int tep_data_type(struct tep_handle *pevent, struct tep_record *rec);
-int tep_data_pid(struct tep_handle *pevent, struct tep_record *rec);
-int tep_data_preempt_count(struct tep_handle *pevent, struct tep_record *rec);
-int tep_data_flags(struct tep_handle *pevent, struct tep_record *rec);
-const char *tep_data_comm_from_pid(struct tep_handle *pevent, int pid);
+int tep_data_type(struct tep_handle *tep, struct tep_record *rec);
+int tep_data_pid(struct tep_handle *tep, struct tep_record *rec);
+int tep_data_preempt_count(struct tep_handle *tep, struct tep_record *rec);
+int tep_data_flags(struct tep_handle *tep, struct tep_record *rec);
+const char *tep_data_comm_from_pid(struct tep_handle *tep, int pid);
 struct tep_cmdline;
-struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *pevent, const char *comm,
+struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *tep, const char *comm,
 					   struct tep_cmdline *next);
-int tep_cmdline_pid(struct tep_handle *pevent, struct tep_cmdline *cmdline);
+int tep_cmdline_pid(struct tep_handle *tep, struct tep_cmdline *cmdline);
 
 void tep_print_field(struct trace_seq *s, void *data,
 		     struct tep_format_field *field);
@@ -546,10 +546,10 @@ void tep_print_fields(struct trace_seq *s, void *data,
 		      int size __maybe_unused, struct tep_event *event);
 void tep_event_info(struct trace_seq *s, struct tep_event *event,
 		    struct tep_record *record);
-int tep_strerror(struct tep_handle *pevent, enum tep_errno errnum,
+int tep_strerror(struct tep_handle *tep, enum tep_errno errnum,
 		 char *buf, size_t buflen);
 
-struct tep_event **tep_list_events(struct tep_handle *pevent, enum tep_event_sort_type);
+struct tep_event **tep_list_events(struct tep_handle *tep, enum tep_event_sort_type);
 struct tep_format_field **tep_event_common_fields(struct tep_event *event);
 struct tep_format_field **tep_event_fields(struct tep_event *event);
 
@@ -557,28 +557,28 @@ enum tep_endian {
         TEP_LITTLE_ENDIAN = 0,
         TEP_BIG_ENDIAN
 };
-int tep_get_cpus(struct tep_handle *pevent);
-void tep_set_cpus(struct tep_handle *pevent, int cpus);
-int tep_get_long_size(struct tep_handle *pevent);
-void tep_set_long_size(struct tep_handle *pevent, int long_size);
-int tep_get_page_size(struct tep_handle *pevent);
-void tep_set_page_size(struct tep_handle *pevent, int _page_size);
-bool tep_is_file_bigendian(struct tep_handle *pevent);
-void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian);
-bool tep_is_local_bigendian(struct tep_handle *pevent);
-void tep_set_local_bigendian(struct tep_handle *pevent, enum tep_endian endian);
-bool tep_is_latency_format(struct tep_handle *pevent);
-void tep_set_latency_format(struct tep_handle *pevent, int lat);
-int tep_get_header_page_size(struct tep_handle *pevent);
+int tep_get_cpus(struct tep_handle *tep);
+void tep_set_cpus(struct tep_handle *tep, int cpus);
+int tep_get_long_size(struct tep_handle *tep);
+void tep_set_long_size(struct tep_handle *tep, int long_size);
+int tep_get_page_size(struct tep_handle *tep);
+void tep_set_page_size(struct tep_handle *tep, int _page_size);
+bool tep_is_file_bigendian(struct tep_handle *tep);
+void tep_set_file_bigendian(struct tep_handle *tep, enum tep_endian endian);
+bool tep_is_local_bigendian(struct tep_handle *tep);
+void tep_set_local_bigendian(struct tep_handle *tep, enum tep_endian endian);
+bool tep_is_latency_format(struct tep_handle *tep);
+void tep_set_latency_format(struct tep_handle *tep, int lat);
+int tep_get_header_page_size(struct tep_handle *tep);
 int tep_get_header_timestamp_size(struct tep_handle *tep);
 bool tep_is_old_format(struct tep_handle *tep);
 void tep_set_print_raw(struct tep_handle *tep, int print_raw);
 void tep_set_test_filters(struct tep_handle *tep, int test_filters);
 
 struct tep_handle *tep_alloc(void);
-void tep_free(struct tep_handle *pevent);
-void tep_ref(struct tep_handle *pevent);
-void tep_unref(struct tep_handle *pevent);
+void tep_free(struct tep_handle *tep);
+void tep_ref(struct tep_handle *tep);
+void tep_unref(struct tep_handle *tep);
 int tep_get_ref(struct tep_handle *tep);
 
 /* access to the internal parser */
@@ -590,8 +590,8 @@ const char *tep_get_input_buf(void);
 unsigned long long tep_get_input_buf_ptr(void);
 
 /* for debugging */
-void tep_print_funcs(struct tep_handle *pevent);
-void tep_print_printk(struct tep_handle *pevent);
+void tep_print_funcs(struct tep_handle *tep);
+void tep_print_printk(struct tep_handle *tep);
 
 /* ----------------------- filtering ----------------------- */
 
@@ -724,7 +724,7 @@ struct tep_event_filter {
 	char			error_buffer[TEP_FILTER_ERROR_BUFSZ];
 };
 
-struct tep_event_filter *tep_filter_alloc(struct tep_handle *pevent);
+struct tep_event_filter *tep_filter_alloc(struct tep_handle *tep);
 
 /* for backward compatibility */
 #define FILTER_NONE		TEP_ERRNO__NO_FILTER
diff --git a/tools/lib/traceevent/event-plugin.c b/tools/lib/traceevent/event-plugin.c
index e74f16c88398..d0488de0174a 100644
--- a/tools/lib/traceevent/event-plugin.c
+++ b/tools/lib/traceevent/event-plugin.c
@@ -419,16 +419,16 @@ load_plugins(struct tep_handle *pevent, const char *suffix,
 }
 
 struct tep_plugin_list*
-tep_load_plugins(struct tep_handle *pevent)
+tep_load_plugins(struct tep_handle *tep)
 {
 	struct tep_plugin_list *list = NULL;
 
-	load_plugins(pevent, ".so", load_plugin, &list);
+	load_plugins(tep, ".so", load_plugin, &list);
 	return list;
 }
 
 void
-tep_unload_plugins(struct tep_plugin_list *plugin_list, struct tep_handle *pevent)
+tep_unload_plugins(struct tep_plugin_list *plugin_list, struct tep_handle *tep)
 {
 	tep_plugin_unload_func func;
 	struct tep_plugin_list *list;
@@ -438,7 +438,7 @@ tep_unload_plugins(struct tep_plugin_list *plugin_list, struct tep_handle *peven
 		plugin_list = list->next;
 		func = dlsym(list->handle, TEP_PLUGIN_UNLOADER_NAME);
 		if (func)
-			func(pevent);
+			func(tep);
 		dlclose(list->handle);
 		free(list->name);
 		free(list);
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index 4ffd8b25a852..ce437ac286e9 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -164,9 +164,9 @@ add_filter_type(struct tep_event_filter *filter, int id)
 
 /**
  * tep_filter_alloc - create a new event filter
- * @pevent: The pevent that this filter is associated with
+ * @tep: The tep that this filter is associated with
  */
-struct tep_event_filter *tep_filter_alloc(struct tep_handle *pevent)
+struct tep_event_filter *tep_filter_alloc(struct tep_handle *tep)
 {
 	struct tep_event_filter *filter;
 
@@ -175,8 +175,8 @@ struct tep_event_filter *tep_filter_alloc(struct tep_handle *pevent)
 		return NULL;
 
 	memset(filter, 0, sizeof(*filter));
-	filter->pevent = pevent;
-	tep_ref(pevent);
+	filter->pevent = tep;
+	tep_ref(tep);
 
 	return filter;
 }
diff --git a/tools/lib/traceevent/plugin_cfg80211.c b/tools/lib/traceevent/plugin_cfg80211.c
index a51b366f47da..3d43b56a6c98 100644
--- a/tools/lib/traceevent/plugin_cfg80211.c
+++ b/tools/lib/traceevent/plugin_cfg80211.c
@@ -25,9 +25,9 @@ process___le16_to_cpup(struct trace_seq *s, unsigned long long *args)
 	return val ? (long long) le16toh(*val) : 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_print_function(pevent,
+	tep_register_print_function(tep,
 				    process___le16_to_cpup,
 				    TEP_FUNC_ARG_INT,
 				    "__le16_to_cpup",
@@ -36,8 +36,8 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_print_function(pevent, process___le16_to_cpup,
+	tep_unregister_print_function(tep, process___le16_to_cpup,
 				      "__le16_to_cpup");
 }
diff --git a/tools/lib/traceevent/plugin_function.c b/tools/lib/traceevent/plugin_function.c
index a73eca34a8f9..e93f33bd705f 100644
--- a/tools/lib/traceevent/plugin_function.c
+++ b/tools/lib/traceevent/plugin_function.c
@@ -164,9 +164,9 @@ static int function_handler(struct trace_seq *s, struct tep_record *record,
 	return 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_event_handler(pevent, -1, "ftrace", "function",
+	tep_register_event_handler(tep, -1, "ftrace", "function",
 				   function_handler, NULL);
 
 	tep_plugin_add_options("ftrace", plugin_options);
@@ -174,11 +174,11 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
 	int i, x;
 
-	tep_unregister_event_handler(pevent, -1, "ftrace", "function",
+	tep_unregister_event_handler(tep, -1, "ftrace", "function",
 				     function_handler, NULL);
 
 	for (i = 0; i <= cpus; i++) {
diff --git a/tools/lib/traceevent/plugin_hrtimer.c b/tools/lib/traceevent/plugin_hrtimer.c
index 5db5e401275f..bb434e0ed03a 100644
--- a/tools/lib/traceevent/plugin_hrtimer.c
+++ b/tools/lib/traceevent/plugin_hrtimer.c
@@ -67,23 +67,23 @@ static int timer_start_handler(struct trace_seq *s,
 	return 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_event_handler(pevent, -1,
+	tep_register_event_handler(tep, -1,
 				   "timer", "hrtimer_expire_entry",
 				   timer_expire_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "timer", "hrtimer_start",
+	tep_register_event_handler(tep, -1, "timer", "hrtimer_start",
 				   timer_start_handler, NULL);
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_event_handler(pevent, -1,
+	tep_unregister_event_handler(tep, -1,
 				     "timer", "hrtimer_expire_entry",
 				     timer_expire_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "timer", "hrtimer_start",
+	tep_unregister_event_handler(tep, -1, "timer", "hrtimer_start",
 				     timer_start_handler, NULL);
 }
diff --git a/tools/lib/traceevent/plugin_jbd2.c b/tools/lib/traceevent/plugin_jbd2.c
index a5e34135dd6a..04fc125f38cb 100644
--- a/tools/lib/traceevent/plugin_jbd2.c
+++ b/tools/lib/traceevent/plugin_jbd2.c
@@ -48,16 +48,16 @@ process_jiffies_to_msecs(struct trace_seq *s, unsigned long long *args)
 	return jiffies;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_print_function(pevent,
+	tep_register_print_function(tep,
 				    process_jbd2_dev_to_name,
 				    TEP_FUNC_ARG_STRING,
 				    "jbd2_dev_to_name",
 				    TEP_FUNC_ARG_INT,
 				    TEP_FUNC_ARG_VOID);
 
-	tep_register_print_function(pevent,
+	tep_register_print_function(tep,
 				    process_jiffies_to_msecs,
 				    TEP_FUNC_ARG_LONG,
 				    "jiffies_to_msecs",
@@ -66,11 +66,11 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_print_function(pevent, process_jbd2_dev_to_name,
+	tep_unregister_print_function(tep, process_jbd2_dev_to_name,
 				      "jbd2_dev_to_name");
 
-	tep_unregister_print_function(pevent, process_jiffies_to_msecs,
+	tep_unregister_print_function(tep, process_jiffies_to_msecs,
 				      "jiffies_to_msecs");
 }
diff --git a/tools/lib/traceevent/plugin_kmem.c b/tools/lib/traceevent/plugin_kmem.c
index 0e3c601f9ed1..c09bafdd8377 100644
--- a/tools/lib/traceevent/plugin_kmem.c
+++ b/tools/lib/traceevent/plugin_kmem.c
@@ -49,47 +49,47 @@ static int call_site_handler(struct trace_seq *s, struct tep_record *record,
 	return 1;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_event_handler(pevent, -1, "kmem", "kfree",
+	tep_register_event_handler(tep, -1, "kmem", "kfree",
 				   call_site_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kmem", "kmalloc",
+	tep_register_event_handler(tep, -1, "kmem", "kmalloc",
 				   call_site_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kmem", "kmalloc_node",
+	tep_register_event_handler(tep, -1, "kmem", "kmalloc_node",
 				   call_site_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kmem", "kmem_cache_alloc",
+	tep_register_event_handler(tep, -1, "kmem", "kmem_cache_alloc",
 				   call_site_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kmem",
+	tep_register_event_handler(tep, -1, "kmem",
 				   "kmem_cache_alloc_node",
 				   call_site_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kmem", "kmem_cache_free",
+	tep_register_event_handler(tep, -1, "kmem", "kmem_cache_free",
 				   call_site_handler, NULL);
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_event_handler(pevent, -1, "kmem", "kfree",
+	tep_unregister_event_handler(tep, -1, "kmem", "kfree",
 				     call_site_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kmem", "kmalloc",
+	tep_unregister_event_handler(tep, -1, "kmem", "kmalloc",
 				     call_site_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kmem", "kmalloc_node",
+	tep_unregister_event_handler(tep, -1, "kmem", "kmalloc_node",
 				     call_site_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kmem", "kmem_cache_alloc",
+	tep_unregister_event_handler(tep, -1, "kmem", "kmem_cache_alloc",
 				     call_site_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kmem",
+	tep_unregister_event_handler(tep, -1, "kmem",
 				     "kmem_cache_alloc_node",
 				     call_site_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kmem", "kmem_cache_free",
+	tep_unregister_event_handler(tep, -1, "kmem", "kmem_cache_free",
 				     call_site_handler, NULL);
 }
diff --git a/tools/lib/traceevent/plugin_kvm.c b/tools/lib/traceevent/plugin_kvm.c
index 688e5d97d7a7..472298c2b531 100644
--- a/tools/lib/traceevent/plugin_kvm.c
+++ b/tools/lib/traceevent/plugin_kvm.c
@@ -445,40 +445,40 @@ process_is_writable_pte(struct trace_seq *s, unsigned long long *args)
 	return pte & PT_WRITABLE_MASK;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
 	init_disassembler();
 
-	tep_register_event_handler(pevent, -1, "kvm", "kvm_exit",
+	tep_register_event_handler(tep, -1, "kvm", "kvm_exit",
 				   kvm_exit_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvm", "kvm_emulate_insn",
+	tep_register_event_handler(tep, -1, "kvm", "kvm_emulate_insn",
 				   kvm_emulate_insn_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvm", "kvm_nested_vmexit",
+	tep_register_event_handler(tep, -1, "kvm", "kvm_nested_vmexit",
 				   kvm_nested_vmexit_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvm", "kvm_nested_vmexit_inject",
+	tep_register_event_handler(tep, -1, "kvm", "kvm_nested_vmexit_inject",
 				   kvm_nested_vmexit_inject_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_get_page",
+	tep_register_event_handler(tep, -1, "kvmmmu", "kvm_mmu_get_page",
 				   kvm_mmu_get_page_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_sync_page",
+	tep_register_event_handler(tep, -1, "kvmmmu", "kvm_mmu_sync_page",
 				   kvm_mmu_print_role, NULL);
 
-	tep_register_event_handler(pevent, -1,
+	tep_register_event_handler(tep, -1,
 				   "kvmmmu", "kvm_mmu_unsync_page",
 				   kvm_mmu_print_role, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_zap_page",
+	tep_register_event_handler(tep, -1, "kvmmmu", "kvm_mmu_zap_page",
 				   kvm_mmu_print_role, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvmmmu",
+	tep_register_event_handler(tep, -1, "kvmmmu",
 			"kvm_mmu_prepare_zap_page", kvm_mmu_print_role,
 			NULL);
 
-	tep_register_print_function(pevent,
+	tep_register_print_function(tep,
 				    process_is_writable_pte,
 				    TEP_FUNC_ARG_INT,
 				    "is_writable_pte",
@@ -487,37 +487,37 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_event_handler(pevent, -1, "kvm", "kvm_exit",
+	tep_unregister_event_handler(tep, -1, "kvm", "kvm_exit",
 				     kvm_exit_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvm", "kvm_emulate_insn",
+	tep_unregister_event_handler(tep, -1, "kvm", "kvm_emulate_insn",
 				     kvm_emulate_insn_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvm", "kvm_nested_vmexit",
+	tep_unregister_event_handler(tep, -1, "kvm", "kvm_nested_vmexit",
 				     kvm_nested_vmexit_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvm", "kvm_nested_vmexit_inject",
+	tep_unregister_event_handler(tep, -1, "kvm", "kvm_nested_vmexit_inject",
 				     kvm_nested_vmexit_inject_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_get_page",
+	tep_unregister_event_handler(tep, -1, "kvmmmu", "kvm_mmu_get_page",
 				     kvm_mmu_get_page_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_sync_page",
+	tep_unregister_event_handler(tep, -1, "kvmmmu", "kvm_mmu_sync_page",
 				     kvm_mmu_print_role, NULL);
 
-	tep_unregister_event_handler(pevent, -1,
+	tep_unregister_event_handler(tep, -1,
 				     "kvmmmu", "kvm_mmu_unsync_page",
 				     kvm_mmu_print_role, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_zap_page",
+	tep_unregister_event_handler(tep, -1, "kvmmmu", "kvm_mmu_zap_page",
 				     kvm_mmu_print_role, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvmmmu",
+	tep_unregister_event_handler(tep, -1, "kvmmmu",
 			"kvm_mmu_prepare_zap_page", kvm_mmu_print_role,
 			NULL);
 
-	tep_unregister_print_function(pevent, process_is_writable_pte,
+	tep_unregister_print_function(tep, process_is_writable_pte,
 				      "is_writable_pte");
 }
diff --git a/tools/lib/traceevent/plugin_mac80211.c b/tools/lib/traceevent/plugin_mac80211.c
index e38b9477aad2..884303c26b5c 100644
--- a/tools/lib/traceevent/plugin_mac80211.c
+++ b/tools/lib/traceevent/plugin_mac80211.c
@@ -87,17 +87,17 @@ static int drv_bss_info_changed(struct trace_seq *s,
 	return 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_event_handler(pevent, -1, "mac80211",
+	tep_register_event_handler(tep, -1, "mac80211",
 				   "drv_bss_info_changed",
 				   drv_bss_info_changed, NULL);
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_event_handler(pevent, -1, "mac80211",
+	tep_unregister_event_handler(tep, -1, "mac80211",
 				     "drv_bss_info_changed",
 				     drv_bss_info_changed, NULL);
 }
diff --git a/tools/lib/traceevent/plugin_sched_switch.c b/tools/lib/traceevent/plugin_sched_switch.c
index 834c9e378ff8..701c22913cf8 100644
--- a/tools/lib/traceevent/plugin_sched_switch.c
+++ b/tools/lib/traceevent/plugin_sched_switch.c
@@ -135,27 +135,27 @@ static int sched_switch_handler(struct trace_seq *s,
 	return 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_event_handler(pevent, -1, "sched", "sched_switch",
+	tep_register_event_handler(tep, -1, "sched", "sched_switch",
 				   sched_switch_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "sched", "sched_wakeup",
+	tep_register_event_handler(tep, -1, "sched", "sched_wakeup",
 				   sched_wakeup_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "sched", "sched_wakeup_new",
+	tep_register_event_handler(tep, -1, "sched", "sched_wakeup_new",
 				   sched_wakeup_handler, NULL);
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_event_handler(pevent, -1, "sched", "sched_switch",
+	tep_unregister_event_handler(tep, -1, "sched", "sched_switch",
 				     sched_switch_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "sched", "sched_wakeup",
+	tep_unregister_event_handler(tep, -1, "sched", "sched_wakeup",
 				     sched_wakeup_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "sched", "sched_wakeup_new",
+	tep_unregister_event_handler(tep, -1, "sched", "sched_wakeup_new",
 				     sched_wakeup_handler, NULL);
 }
diff --git a/tools/lib/traceevent/plugin_scsi.c b/tools/lib/traceevent/plugin_scsi.c
index 4eba25cc1431..5d0387a4b65a 100644
--- a/tools/lib/traceevent/plugin_scsi.c
+++ b/tools/lib/traceevent/plugin_scsi.c
@@ -414,9 +414,9 @@ unsigned long long process_scsi_trace_parse_cdb(struct trace_seq *s,
 	return 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_print_function(pevent,
+	tep_register_print_function(tep,
 				    process_scsi_trace_parse_cdb,
 				    TEP_FUNC_ARG_STRING,
 				    "scsi_trace_parse_cdb",
@@ -427,8 +427,8 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_print_function(pevent, process_scsi_trace_parse_cdb,
+	tep_unregister_print_function(tep, process_scsi_trace_parse_cdb,
 				      "scsi_trace_parse_cdb");
 }
diff --git a/tools/lib/traceevent/plugin_xen.c b/tools/lib/traceevent/plugin_xen.c
index bc0496e4c296..993b208d0323 100644
--- a/tools/lib/traceevent/plugin_xen.c
+++ b/tools/lib/traceevent/plugin_xen.c
@@ -120,9 +120,9 @@ unsigned long long process_xen_hypercall_name(struct trace_seq *s,
 	return 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_print_function(pevent,
+	tep_register_print_function(tep,
 				    process_xen_hypercall_name,
 				    TEP_FUNC_ARG_STRING,
 				    "xen_hypercall_name",
@@ -131,8 +131,8 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_print_function(pevent, process_xen_hypercall_name,
+	tep_unregister_print_function(tep, process_xen_hypercall_name,
 				      "xen_hypercall_name");
 }
-- 
2.20.1


^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH 5/8] tools/perf,tools/lib/traceevent: rename "pevent" member of struct tep_event to "tep"
  2019-03-26 15:43 [PATCH 0/8] Cleanup traceevent API and make it more consistent Tzvetomir Stoyanov
                   ` (3 preceding siblings ...)
  2019-03-26 15:43 ` [PATCH 4/8] tools/lib/traceevent: rename input arguments of libtraceevent APIs from pevent to tep Tzvetomir Stoyanov
@ 2019-03-26 15:43 ` Tzvetomir Stoyanov
  2019-03-26 15:43 ` [PATCH 6/8] tools/perf,tools/lib/traceevent: rename "pevent" member of struct tep_event_filter " Tzvetomir Stoyanov
                   ` (2 subsequent siblings)
  7 siblings, 0 replies; 55+ messages in thread
From: Tzvetomir Stoyanov @ 2019-03-26 15:43 UTC (permalink / raw)
  To: rostedt; +Cc: linux-trace-devel, linux-kernel

This patch renames "pevent" member of the struct tep_event to "tep". This makes
the struct consistent with the chosen naming convention:
tep (trace event parser), instead of the old pevent.

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
---
 tools/lib/traceevent/event-parse.c            | 32 +++++++++----------
 tools/lib/traceevent/event-parse.h            |  2 +-
 tools/lib/traceevent/parse-filter.c           |  6 ++--
 tools/lib/traceevent/plugin_function.c        |  2 +-
 tools/lib/traceevent/plugin_kmem.c            |  4 +--
 tools/lib/traceevent/plugin_kvm.c             |  4 +--
 tools/lib/traceevent/plugin_sched_switch.c    |  2 +-
 tools/perf/builtin-kmem.c                     |  2 +-
 tools/perf/util/data-convert-bt.c             |  4 +--
 tools/perf/util/python.c                      |  2 +-
 .../util/scripting-engines/trace-event-perl.c |  2 +-
 .../scripting-engines/trace-event-python.c    |  2 +-
 tools/perf/util/trace-event-parse.c           |  2 +-
 13 files changed, 33 insertions(+), 33 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 6265d3bb72a1..de17fe9f0f62 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -804,7 +804,7 @@ static int add_event(struct tep_handle *pevent, struct tep_event *event)
 	pevent->events[i] = event;
 	pevent->nr_events++;
 
-	event->pevent = pevent;
+	event->tep = pevent;
 
 	return 0;
 }
@@ -1656,8 +1656,8 @@ static int event_read_fields(struct tep_event *event, struct tep_format_field **
 			else if (field->flags & TEP_FIELD_IS_STRING)
 				field->elementsize = 1;
 			else if (field->flags & TEP_FIELD_IS_LONG)
-				field->elementsize = event->pevent ?
-						     event->pevent->long_size :
+				field->elementsize = event->tep ?
+						     event->tep->long_size :
 						     sizeof(long);
 		} else
 			field->elementsize = field->size;
@@ -3075,7 +3075,7 @@ process_function(struct tep_event *event, struct tep_print_arg *arg,
 		return process_dynamic_array_len(event, arg, tok);
 	}
 
-	func = find_func_handler(event->pevent, token);
+	func = find_func_handler(event->tep, token);
 	if (func) {
 		free_token(token);
 		return process_func_handler(event, func, arg, tok);
@@ -3405,7 +3405,7 @@ int tep_read_number_field(struct tep_format_field *field, const void *data,
 	case 2:
 	case 4:
 	case 8:
-		*value = tep_read_number(field->event->pevent,
+		*value = tep_read_number(field->event->tep,
 					 data + field->offset, field->size);
 		return 0;
 	default:
@@ -3566,7 +3566,7 @@ tep_find_event_by_name(struct tep_handle *tep,
 static unsigned long long
 eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg *arg)
 {
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	unsigned long long val = 0;
 	unsigned long long left, right;
 	struct tep_print_arg *typearg = NULL;
@@ -3907,7 +3907,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 			  struct tep_event *event, const char *format,
 			  int len_arg, struct tep_print_arg *arg)
 {
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	struct tep_print_flag_sym *flag;
 	struct tep_format_field *field;
 	struct printk_map *printk;
@@ -4256,7 +4256,7 @@ static void free_args(struct tep_print_arg *args)
 
 static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, struct tep_event *event)
 {
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	struct tep_format_field *field, *ip_field;
 	struct tep_print_arg *args, *arg, **next;
 	unsigned long long ip, val;
@@ -4433,7 +4433,7 @@ static char *
 get_bprint_format(void *data, int size __maybe_unused,
 		  struct tep_event *event)
 {
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	unsigned long long addr;
 	struct tep_format_field *field;
 	struct printk_map *printk;
@@ -4834,7 +4834,7 @@ void tep_print_field(struct trace_seq *s, void *data,
 {
 	unsigned long long val;
 	unsigned int offset, len, i;
-	struct tep_handle *pevent = field->event->pevent;
+	struct tep_handle *pevent = field->event->tep;
 
 	if (field->flags & TEP_FIELD_IS_ARRAY) {
 		offset = field->offset;
@@ -4909,7 +4909,7 @@ void tep_print_fields(struct trace_seq *s, void *data,
 
 static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_event *event)
 {
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	struct tep_print_fmt *print_fmt = &event->print_fmt;
 	struct tep_print_arg *arg = print_fmt->args;
 	struct tep_print_arg *args = NULL;
@@ -5423,7 +5423,7 @@ void tep_event_info(struct trace_seq *s, struct tep_event *event,
 {
 	int print_pretty = 1;
 
-	if (event->pevent->print_raw || (event->flags & TEP_EVENT_FL_PRINTRAW))
+	if (event->tep->print_raw || (event->flags & TEP_EVENT_FL_PRINTRAW))
 		tep_print_fields(s, record->data, record->size, event);
 	else {
 
@@ -6097,7 +6097,7 @@ enum tep_errno __tep_parse_format(struct tep_event **eventp,
 	}
 
 	/* Add pevent to event so that it can be referenced */
-	event->pevent = pevent;
+	event->tep = pevent;
 
 	ret = event_read_format(event);
 	if (ret < 0) {
@@ -6297,8 +6297,8 @@ void *tep_get_field_raw(struct trace_seq *s, struct tep_event *event,
 
 	offset = field->offset;
 	if (field->flags & TEP_FIELD_IS_DYNAMIC) {
-		offset = tep_read_number(event->pevent,
-					    data + offset, field->size);
+		offset = tep_read_number(event->tep,
+					 data + offset, field->size);
 		*len = offset >> 16;
 		offset &= 0xffff;
 	} else
@@ -6432,7 +6432,7 @@ int tep_print_func_field(struct trace_seq *s, const char *fmt,
 			 struct tep_record *record, int err)
 {
 	struct tep_format_field *field = tep_find_field(event, name);
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	unsigned long long val;
 	struct func_map *func;
 	char tmp[128];
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 77f3308274d1..d98362ff4bb1 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -278,7 +278,7 @@ struct tep_print_fmt {
 };
 
 struct tep_event {
-	struct tep_handle	*pevent;
+	struct tep_handle	*tep;
 	char			*name;
 	int			id;
 	int			flags;
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index ce437ac286e9..231e9cae5729 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -1531,8 +1531,8 @@ get_comm(struct tep_event *event, struct tep_record *record)
 	const char *comm;
 	int pid;
 
-	pid = tep_data_pid(event->pevent, record);
-	comm = tep_data_comm_from_pid(event->pevent, pid);
+	pid = tep_data_pid(event->tep, record);
+	comm = tep_data_comm_from_pid(event->tep, pid);
 	return comm;
 }
 
@@ -1730,7 +1730,7 @@ static const char *get_field_str(struct tep_filter_arg *arg, struct tep_record *
 
 	} else {
 		event = arg->str.field->event;
-		pevent = event->pevent;
+		pevent = event->tep;
 		addr = get_value(event, arg->str.field, record);
 
 		if (arg->str.field->flags & (TEP_FIELD_IS_POINTER | TEP_FIELD_IS_LONG))
diff --git a/tools/lib/traceevent/plugin_function.c b/tools/lib/traceevent/plugin_function.c
index e93f33bd705f..d6a8df060614 100644
--- a/tools/lib/traceevent/plugin_function.c
+++ b/tools/lib/traceevent/plugin_function.c
@@ -126,7 +126,7 @@ static int add_and_get_index(const char *parent, const char *child, int cpu)
 static int function_handler(struct trace_seq *s, struct tep_record *record,
 			    struct tep_event *event, void *context)
 {
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	unsigned long long function;
 	unsigned long long pfunction;
 	const char *func;
diff --git a/tools/lib/traceevent/plugin_kmem.c b/tools/lib/traceevent/plugin_kmem.c
index c09bafdd8377..edaec5d962c3 100644
--- a/tools/lib/traceevent/plugin_kmem.c
+++ b/tools/lib/traceevent/plugin_kmem.c
@@ -39,11 +39,11 @@ static int call_site_handler(struct trace_seq *s, struct tep_record *record,
 	if (tep_read_number_field(field, data, &val))
 		return 1;
 
-	func = tep_find_function(event->pevent, val);
+	func = tep_find_function(event->tep, val);
 	if (!func)
 		return 1;
 
-	addr = tep_find_function_address(event->pevent, val);
+	addr = tep_find_function_address(event->tep, val);
 
 	trace_seq_printf(s, "(%s+0x%x) ", func, (int)(val - addr));
 	return 1;
diff --git a/tools/lib/traceevent/plugin_kvm.c b/tools/lib/traceevent/plugin_kvm.c
index 472298c2b531..c8e623065a7e 100644
--- a/tools/lib/traceevent/plugin_kvm.c
+++ b/tools/lib/traceevent/plugin_kvm.c
@@ -389,8 +389,8 @@ static int kvm_mmu_print_role(struct trace_seq *s, struct tep_record *record,
 	 * We can only use the structure if file is of the same
 	 * endianness.
 	 */
-	if (tep_is_file_bigendian(event->pevent) ==
-	    tep_is_local_bigendian(event->pevent)) {
+	if (tep_is_file_bigendian(event->tep) ==
+	    tep_is_local_bigendian(event->tep)) {
 
 		trace_seq_printf(s, "%u q%u%s %s%s %spae %snxe %swp%s%s%s",
 				 role.level,
diff --git a/tools/lib/traceevent/plugin_sched_switch.c b/tools/lib/traceevent/plugin_sched_switch.c
index 701c22913cf8..957389a0ff7a 100644
--- a/tools/lib/traceevent/plugin_sched_switch.c
+++ b/tools/lib/traceevent/plugin_sched_switch.c
@@ -62,7 +62,7 @@ static void write_and_save_comm(struct tep_format_field *field,
 	comm = &s->buffer[len];
 
 	/* Help out the comm to ids. This will handle dups */
-	tep_register_comm(field->event->pevent, comm, pid);
+	tep_register_comm(field->event->tep, comm, pid);
 }
 
 static int sched_wakeup_handler(struct trace_seq *s,
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index fa520f4b8095..b80eee455111 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -1975,7 +1975,7 @@ int cmd_kmem(int argc, const char **argv)
 			goto out_delete;
 		}
 
-		kmem_page_size = tep_get_page_size(evsel->tp_format->pevent);
+		kmem_page_size = tep_get_page_size(evsel->tp_format->tep);
 		symbol_conf.use_callchain = true;
 	}
 
diff --git a/tools/perf/util/data-convert-bt.c b/tools/perf/util/data-convert-bt.c
index 26af43ad9ddd..e0311c9750ad 100644
--- a/tools/perf/util/data-convert-bt.c
+++ b/tools/perf/util/data-convert-bt.c
@@ -310,7 +310,7 @@ static int add_tracepoint_field_value(struct ctf_writer *cw,
 	if (flags & TEP_FIELD_IS_DYNAMIC) {
 		unsigned long long tmp_val;
 
-		tmp_val = tep_read_number(fmtf->event->pevent,
+		tmp_val = tep_read_number(fmtf->event->tep,
 					  data + offset, len);
 		offset = tmp_val;
 		len = offset >> 16;
@@ -354,7 +354,7 @@ static int add_tracepoint_field_value(struct ctf_writer *cw,
 			unsigned long long value_int;
 
 			value_int = tep_read_number(
-					fmtf->event->pevent,
+					fmtf->event->tep,
 					data + offset + i * len, len);
 
 			if (!(flags & TEP_FIELD_IS_SIGNED))
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index dda0ac978b1e..6aa7e2352e16 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -342,7 +342,7 @@ static bool is_tracepoint(struct pyrf_event *pevent)
 static PyObject*
 tracepoint_field(struct pyrf_event *pe, struct tep_format_field *field)
 {
-	struct tep_handle *pevent = field->event->pevent;
+	struct tep_handle *pevent = field->event->tep;
 	void *data = pe->sample.raw_data;
 	PyObject *ret = NULL;
 	unsigned long long val;
diff --git a/tools/perf/util/scripting-engines/trace-event-perl.c b/tools/perf/util/scripting-engines/trace-event-perl.c
index 5f06378a482b..61aa7f3df915 100644
--- a/tools/perf/util/scripting-engines/trace-event-perl.c
+++ b/tools/perf/util/scripting-engines/trace-event-perl.c
@@ -372,7 +372,7 @@ static void perl_process_tracepoint(struct perf_sample *sample,
 	ns = nsecs - s * NSEC_PER_SEC;
 
 	scripting_context->event_data = data;
-	scripting_context->pevent = evsel->tp_format->pevent;
+	scripting_context->pevent = evsel->tp_format->tep;
 
 	ENTER;
 	SAVETMPS;
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index 09604c6508f0..22f52b669871 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -837,7 +837,7 @@ static void python_process_tracepoint(struct perf_sample *sample,
 	ns = nsecs - s * NSEC_PER_SEC;
 
 	scripting_context->event_data = data;
-	scripting_context->pevent = evsel->tp_format->pevent;
+	scripting_context->pevent = evsel->tp_format->tep;
 
 	context = _PyCapsule_New(scripting_context, NULL, NULL);
 
diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index ad74be1f0e42..863955e4094e 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -111,7 +111,7 @@ raw_field_value(struct tep_event *event, const char *name, void *data)
 
 unsigned long long read_size(struct tep_event *event, void *ptr, int size)
 {
-	return tep_read_number(event->pevent, ptr, size);
+	return tep_read_number(event->tep, ptr, size);
 }
 
 void event_format__fprintf(struct tep_event *event,
-- 
2.20.1


^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH 6/8] tools/perf,tools/lib/traceevent: rename "pevent" member of struct tep_event_filter to "tep"
  2019-03-26 15:43 [PATCH 0/8] Cleanup traceevent API and make it more consistent Tzvetomir Stoyanov
                   ` (4 preceding siblings ...)
  2019-03-26 15:43 ` [PATCH 5/8] tools/perf,tools/lib/traceevent: rename "pevent" member of struct tep_event to "tep" Tzvetomir Stoyanov
@ 2019-03-26 15:43 ` Tzvetomir Stoyanov
  2019-03-26 15:43 ` [PATCH 7/8] tools/lib/traceevent: rename input arguments and local variables of libtraceevent from pevent to tep Tzvetomir Stoyanov
  2019-03-26 15:43 ` [PATCH 8/8] tools/lib/traceevent: remove call to exit() from tep_filter_add_filter_str() Tzvetomir Stoyanov
  7 siblings, 0 replies; 55+ messages in thread
From: Tzvetomir Stoyanov @ 2019-03-26 15:43 UTC (permalink / raw)
  To: rostedt; +Cc: linux-trace-devel, linux-kernel

This patch renames "pevent" member of the struct tep_event_filter to "tep".
This makes the struct consistent with the chosen naming convention:
tep (trace event parser), instead of the old pevent.

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
---
 tools/lib/traceevent/event-parse.h  |  2 +-
 tools/lib/traceevent/parse-filter.c | 14 +++++++-------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index d98362ff4bb1..17fb8d2dd081 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -718,7 +718,7 @@ struct tep_filter_type {
 #define TEP_FILTER_ERROR_BUFSZ  1024
 
 struct tep_event_filter {
-	struct tep_handle	*pevent;
+	struct tep_handle	*tep;
 	int			filters;
 	struct tep_filter_type	*event_filters;
 	char			error_buffer[TEP_FILTER_ERROR_BUFSZ];
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index 231e9cae5729..1d2f1343090d 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -154,7 +154,7 @@ add_filter_type(struct tep_event_filter *filter, int id)
 
 	filter_type = &filter->event_filters[i];
 	filter_type->event_id = id;
-	filter_type->event = tep_find_event(filter->pevent, id);
+	filter_type->event = tep_find_event(filter->tep, id);
 	filter_type->filter = NULL;
 
 	filter->filters++;
@@ -175,7 +175,7 @@ struct tep_event_filter *tep_filter_alloc(struct tep_handle *tep)
 		return NULL;
 
 	memset(filter, 0, sizeof(*filter));
-	filter->pevent = tep;
+	filter->tep = tep;
 	tep_ref(tep);
 
 	return filter;
@@ -1257,7 +1257,7 @@ static void filter_init_error_buf(struct tep_event_filter *filter)
 enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
 					 const char *filter_str)
 {
-	struct tep_handle *pevent = filter->pevent;
+	struct tep_handle *pevent = filter->tep;
 	struct event_list *event;
 	struct event_list *events = NULL;
 	const char *filter_start;
@@ -1380,7 +1380,7 @@ int tep_filter_strerror(struct tep_event_filter *filter, enum tep_errno err,
 		return 0;
 	}
 
-	return tep_strerror(filter->pevent, err, buf, buflen);
+	return tep_strerror(filter->tep, err, buf, buflen);
 }
 
 /**
@@ -1443,7 +1443,7 @@ void tep_filter_reset(struct tep_event_filter *filter)
 
 void tep_filter_free(struct tep_event_filter *filter)
 {
-	tep_unref(filter->pevent);
+	tep_unref(filter->tep);
 
 	tep_filter_reset(filter);
 
@@ -1465,7 +1465,7 @@ static int copy_filter_type(struct tep_event_filter *filter,
 	/* Can't assume that the pevent's are the same */
 	sys = filter_type->event->system;
 	name = filter_type->event->name;
-	event = tep_find_event_by_name(filter->pevent, sys, name);
+	event = tep_find_event_by_name(filter->tep, sys, name);
 	if (!event)
 		return -1;
 
@@ -1875,7 +1875,7 @@ int tep_event_filtered(struct tep_event_filter *filter, int event_id)
 enum tep_errno tep_filter_match(struct tep_event_filter *filter,
 				struct tep_record *record)
 {
-	struct tep_handle *pevent = filter->pevent;
+	struct tep_handle *pevent = filter->tep;
 	struct tep_filter_type *filter_type;
 	int event_id;
 	int ret;
-- 
2.20.1


^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH 7/8] tools/lib/traceevent: rename input arguments and local variables of libtraceevent from pevent to tep
  2019-03-26 15:43 [PATCH 0/8] Cleanup traceevent API and make it more consistent Tzvetomir Stoyanov
                   ` (5 preceding siblings ...)
  2019-03-26 15:43 ` [PATCH 6/8] tools/perf,tools/lib/traceevent: rename "pevent" member of struct tep_event_filter " Tzvetomir Stoyanov
@ 2019-03-26 15:43 ` Tzvetomir Stoyanov
  2019-03-26 15:43 ` [PATCH 8/8] tools/lib/traceevent: remove call to exit() from tep_filter_add_filter_str() Tzvetomir Stoyanov
  7 siblings, 0 replies; 55+ messages in thread
From: Tzvetomir Stoyanov @ 2019-03-26 15:43 UTC (permalink / raw)
  To: rostedt; +Cc: linux-trace-devel, linux-kernel

This patch renames from "pevent" to "tep":
 - all "pevent" input arguments of libtraceevent internal functions.
 - all local "pevent" variables of libtraceevent.
This makes the implementation consistent with the chosen naming convention,
tep (trace event parser), and will avoid any confusion with the old pevent name

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
---
 tools/lib/traceevent/event-parse.c     | 306 ++++++++++++-------------
 tools/lib/traceevent/event-plugin.c    |  24 +-
 tools/lib/traceevent/parse-filter.c    |  26 +--
 tools/lib/traceevent/plugin_function.c |   6 +-
 4 files changed, 181 insertions(+), 181 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index de17fe9f0f62..d9cbf172d99f 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -148,14 +148,14 @@ struct cmdline_list {
 	int			pid;
 };
 
-static int cmdline_init(struct tep_handle *pevent)
+static int cmdline_init(struct tep_handle *tep)
 {
-	struct cmdline_list *cmdlist = pevent->cmdlist;
+	struct cmdline_list *cmdlist = tep->cmdlist;
 	struct cmdline_list *item;
 	struct tep_cmdline *cmdlines;
 	int i;
 
-	cmdlines = malloc(sizeof(*cmdlines) * pevent->cmdline_count);
+	cmdlines = malloc(sizeof(*cmdlines) * tep->cmdline_count);
 	if (!cmdlines)
 		return -1;
 
@@ -169,15 +169,15 @@ static int cmdline_init(struct tep_handle *pevent)
 		free(item);
 	}
 
-	qsort(cmdlines, pevent->cmdline_count, sizeof(*cmdlines), cmdline_cmp);
+	qsort(cmdlines, tep->cmdline_count, sizeof(*cmdlines), cmdline_cmp);
 
-	pevent->cmdlines = cmdlines;
-	pevent->cmdlist = NULL;
+	tep->cmdlines = cmdlines;
+	tep->cmdlist = NULL;
 
 	return 0;
 }
 
-static const char *find_cmdline(struct tep_handle *pevent, int pid)
+static const char *find_cmdline(struct tep_handle *tep, int pid)
 {
 	const struct tep_cmdline *comm;
 	struct tep_cmdline key;
@@ -185,13 +185,13 @@ static const char *find_cmdline(struct tep_handle *pevent, int pid)
 	if (!pid)
 		return "<idle>";
 
-	if (!pevent->cmdlines && cmdline_init(pevent))
+	if (!tep->cmdlines && cmdline_init(tep))
 		return "<not enough memory for cmdlines!>";
 
 	key.pid = pid;
 
-	comm = bsearch(&key, pevent->cmdlines, pevent->cmdline_count,
-		       sizeof(*pevent->cmdlines), cmdline_cmp);
+	comm = bsearch(&key, tep->cmdlines, tep->cmdline_count,
+		       sizeof(*tep->cmdlines), cmdline_cmp);
 
 	if (comm)
 		return comm->comm;
@@ -232,10 +232,10 @@ bool tep_is_pid_registered(struct tep_handle *tep, int pid)
  * we must add this pid. This is much slower than when cmdlines
  * are added before the array is initialized.
  */
-static int add_new_comm(struct tep_handle *pevent,
+static int add_new_comm(struct tep_handle *tep,
 			const char *comm, int pid, bool override)
 {
-	struct tep_cmdline *cmdlines = pevent->cmdlines;
+	struct tep_cmdline *cmdlines = tep->cmdlines;
 	struct tep_cmdline *cmdline;
 	struct tep_cmdline key;
 	char *new_comm;
@@ -246,8 +246,8 @@ static int add_new_comm(struct tep_handle *pevent,
 	/* avoid duplicates */
 	key.pid = pid;
 
-	cmdline = bsearch(&key, pevent->cmdlines, pevent->cmdline_count,
-		       sizeof(*pevent->cmdlines), cmdline_cmp);
+	cmdline = bsearch(&key, tep->cmdlines, tep->cmdline_count,
+			  sizeof(*tep->cmdlines), cmdline_cmp);
 	if (cmdline) {
 		if (!override) {
 			errno = EEXIST;
@@ -264,26 +264,26 @@ static int add_new_comm(struct tep_handle *pevent,
 		return 0;
 	}
 
-	cmdlines = realloc(cmdlines, sizeof(*cmdlines) * (pevent->cmdline_count + 1));
+	cmdlines = realloc(cmdlines, sizeof(*cmdlines) * (tep->cmdline_count + 1));
 	if (!cmdlines) {
 		errno = ENOMEM;
 		return -1;
 	}
 
-	cmdlines[pevent->cmdline_count].comm = strdup(comm);
-	if (!cmdlines[pevent->cmdline_count].comm) {
+	cmdlines[tep->cmdline_count].comm = strdup(comm);
+	if (!cmdlines[tep->cmdline_count].comm) {
 		free(cmdlines);
 		errno = ENOMEM;
 		return -1;
 	}
 
-	cmdlines[pevent->cmdline_count].pid = pid;
+	cmdlines[tep->cmdline_count].pid = pid;
 		
-	if (cmdlines[pevent->cmdline_count].comm)
-		pevent->cmdline_count++;
+	if (cmdlines[tep->cmdline_count].comm)
+		tep->cmdline_count++;
 
-	qsort(cmdlines, pevent->cmdline_count, sizeof(*cmdlines), cmdline_cmp);
-	pevent->cmdlines = cmdlines;
+	qsort(cmdlines, tep->cmdline_count, sizeof(*cmdlines), cmdline_cmp);
+	tep->cmdlines = cmdlines;
 
 	return 0;
 }
@@ -408,18 +408,18 @@ static int func_bcmp(const void *a, const void *b)
 	return 1;
 }
 
-static int func_map_init(struct tep_handle *pevent)
+static int func_map_init(struct tep_handle *tep)
 {
 	struct func_list *funclist;
 	struct func_list *item;
 	struct func_map *func_map;
 	int i;
 
-	func_map = malloc(sizeof(*func_map) * (pevent->func_count + 1));
+	func_map = malloc(sizeof(*func_map) * (tep->func_count + 1));
 	if (!func_map)
 		return -1;
 
-	funclist = pevent->funclist;
+	funclist = tep->funclist;
 
 	i = 0;
 	while (funclist) {
@@ -432,34 +432,34 @@ static int func_map_init(struct tep_handle *pevent)
 		free(item);
 	}
 
-	qsort(func_map, pevent->func_count, sizeof(*func_map), func_cmp);
+	qsort(func_map, tep->func_count, sizeof(*func_map), func_cmp);
 
 	/*
 	 * Add a special record at the end.
 	 */
-	func_map[pevent->func_count].func = NULL;
-	func_map[pevent->func_count].addr = 0;
-	func_map[pevent->func_count].mod = NULL;
+	func_map[tep->func_count].func = NULL;
+	func_map[tep->func_count].addr = 0;
+	func_map[tep->func_count].mod = NULL;
 
-	pevent->func_map = func_map;
-	pevent->funclist = NULL;
+	tep->func_map = func_map;
+	tep->funclist = NULL;
 
 	return 0;
 }
 
 static struct func_map *
-__find_func(struct tep_handle *pevent, unsigned long long addr)
+__find_func(struct tep_handle *tep, unsigned long long addr)
 {
 	struct func_map *func;
 	struct func_map key;
 
-	if (!pevent->func_map)
-		func_map_init(pevent);
+	if (!tep->func_map)
+		func_map_init(tep);
 
 	key.addr = addr;
 
-	func = bsearch(&key, pevent->func_map, pevent->func_count,
-		       sizeof(*pevent->func_map), func_bcmp);
+	func = bsearch(&key, tep->func_map, tep->func_count,
+		       sizeof(*tep->func_map), func_bcmp);
 
 	return func;
 }
@@ -510,18 +510,18 @@ void tep_reset_function_resolver(struct tep_handle *tep)
 }
 
 static struct func_map *
-find_func(struct tep_handle *pevent, unsigned long long addr)
+find_func(struct tep_handle *tep, unsigned long long addr)
 {
 	struct func_map *map;
 
-	if (!pevent->func_resolver)
-		return __find_func(pevent, addr);
+	if (!tep->func_resolver)
+		return __find_func(tep, addr);
 
-	map = &pevent->func_resolver->map;
+	map = &tep->func_resolver->map;
 	map->mod  = NULL;
 	map->addr = addr;
-	map->func = pevent->func_resolver->func(pevent->func_resolver->priv,
-						&map->addr, &map->mod);
+	map->func = tep->func_resolver->func(tep->func_resolver->priv,
+					     &map->addr, &map->mod);
 	if (map->func == NULL)
 		return NULL;
 
@@ -662,18 +662,18 @@ static int printk_cmp(const void *a, const void *b)
 	return 0;
 }
 
-static int printk_map_init(struct tep_handle *pevent)
+static int printk_map_init(struct tep_handle *tep)
 {
 	struct printk_list *printklist;
 	struct printk_list *item;
 	struct printk_map *printk_map;
 	int i;
 
-	printk_map = malloc(sizeof(*printk_map) * (pevent->printk_count + 1));
+	printk_map = malloc(sizeof(*printk_map) * (tep->printk_count + 1));
 	if (!printk_map)
 		return -1;
 
-	printklist = pevent->printklist;
+	printklist = tep->printklist;
 
 	i = 0;
 	while (printklist) {
@@ -685,27 +685,27 @@ static int printk_map_init(struct tep_handle *pevent)
 		free(item);
 	}
 
-	qsort(printk_map, pevent->printk_count, sizeof(*printk_map), printk_cmp);
+	qsort(printk_map, tep->printk_count, sizeof(*printk_map), printk_cmp);
 
-	pevent->printk_map = printk_map;
-	pevent->printklist = NULL;
+	tep->printk_map = printk_map;
+	tep->printklist = NULL;
 
 	return 0;
 }
 
 static struct printk_map *
-find_printk(struct tep_handle *pevent, unsigned long long addr)
+find_printk(struct tep_handle *tep, unsigned long long addr)
 {
 	struct printk_map *printk;
 	struct printk_map key;
 
-	if (!pevent->printk_map && printk_map_init(pevent))
+	if (!tep->printk_map && printk_map_init(tep))
 		return NULL;
 
 	key.addr = addr;
 
-	printk = bsearch(&key, pevent->printk_map, pevent->printk_count,
-			 sizeof(*pevent->printk_map), printk_cmp);
+	printk = bsearch(&key, tep->printk_map, tep->printk_count,
+			 sizeof(*tep->printk_map), printk_cmp);
 
 	return printk;
 }
@@ -782,29 +782,29 @@ static struct tep_event *alloc_event(void)
 	return calloc(1, sizeof(struct tep_event));
 }
 
-static int add_event(struct tep_handle *pevent, struct tep_event *event)
+static int add_event(struct tep_handle *tep, struct tep_event *event)
 {
 	int i;
-	struct tep_event **events = realloc(pevent->events, sizeof(event) *
-					    (pevent->nr_events + 1));
+	struct tep_event **events = realloc(tep->events, sizeof(event) *
+					    (tep->nr_events + 1));
 	if (!events)
 		return -1;
 
-	pevent->events = events;
+	tep->events = events;
 
-	for (i = 0; i < pevent->nr_events; i++) {
-		if (pevent->events[i]->id > event->id)
+	for (i = 0; i < tep->nr_events; i++) {
+		if (tep->events[i]->id > event->id)
 			break;
 	}
-	if (i < pevent->nr_events)
-		memmove(&pevent->events[i + 1],
-			&pevent->events[i],
-			sizeof(event) * (pevent->nr_events - i));
+	if (i < tep->nr_events)
+		memmove(&tep->events[i + 1],
+			&tep->events[i],
+			sizeof(event) * (tep->nr_events - i));
 
-	pevent->events[i] = event;
-	pevent->nr_events++;
+	tep->events[i] = event;
+	tep->nr_events++;
 
-	event->tep = pevent;
+	event->tep = tep;
 
 	return 0;
 }
@@ -2941,14 +2941,14 @@ process_bitmask(struct tep_event *event __maybe_unused, struct tep_print_arg *ar
 }
 
 static struct tep_function_handler *
-find_func_handler(struct tep_handle *pevent, char *func_name)
+find_func_handler(struct tep_handle *tep, char *func_name)
 {
 	struct tep_function_handler *func;
 
-	if (!pevent)
+	if (!tep)
 		return NULL;
 
-	for (func = pevent->func_handlers; func; func = func->next) {
+	for (func = tep->func_handlers; func; func = func->next) {
 		if (strcmp(func->name, func_name) == 0)
 			break;
 	}
@@ -2956,12 +2956,12 @@ find_func_handler(struct tep_handle *pevent, char *func_name)
 	return func;
 }
 
-static void remove_func_handler(struct tep_handle *pevent, char *func_name)
+static void remove_func_handler(struct tep_handle *tep, char *func_name)
 {
 	struct tep_function_handler *func;
 	struct tep_function_handler **next;
 
-	next = &pevent->func_handlers;
+	next = &tep->func_handlers;
 	while ((func = *next)) {
 		if (strcmp(func->name, func_name) == 0) {
 			*next = func->next;
@@ -3413,7 +3413,7 @@ int tep_read_number_field(struct tep_format_field *field, const void *data,
 	}
 }
 
-static int get_common_info(struct tep_handle *pevent,
+static int get_common_info(struct tep_handle *tep,
 			   const char *type, int *offset, int *size)
 {
 	struct tep_event *event;
@@ -3423,12 +3423,12 @@ static int get_common_info(struct tep_handle *pevent,
 	 * All events should have the same common elements.
 	 * Pick any event to find where the type is;
 	 */
-	if (!pevent->events) {
+	if (!tep->events) {
 		do_warning("no event_list!");
 		return -1;
 	}
 
-	event = pevent->events[0];
+	event = tep->events[0];
 	field = tep_find_common_field(event, type);
 	if (!field)
 		return -1;
@@ -3439,58 +3439,58 @@ static int get_common_info(struct tep_handle *pevent,
 	return 0;
 }
 
-static int __parse_common(struct tep_handle *pevent, void *data,
+static int __parse_common(struct tep_handle *tep, void *data,
 			  int *size, int *offset, const char *name)
 {
 	int ret;
 
 	if (!*size) {
-		ret = get_common_info(pevent, name, offset, size);
+		ret = get_common_info(tep, name, offset, size);
 		if (ret < 0)
 			return ret;
 	}
-	return tep_read_number(pevent, data + *offset, *size);
+	return tep_read_number(tep, data + *offset, *size);
 }
 
-static int trace_parse_common_type(struct tep_handle *pevent, void *data)
+static int trace_parse_common_type(struct tep_handle *tep, void *data)
 {
-	return __parse_common(pevent, data,
-			      &pevent->type_size, &pevent->type_offset,
+	return __parse_common(tep, data,
+			      &tep->type_size, &tep->type_offset,
 			      "common_type");
 }
 
-static int parse_common_pid(struct tep_handle *pevent, void *data)
+static int parse_common_pid(struct tep_handle *tep, void *data)
 {
-	return __parse_common(pevent, data,
-			      &pevent->pid_size, &pevent->pid_offset,
+	return __parse_common(tep, data,
+			      &tep->pid_size, &tep->pid_offset,
 			      "common_pid");
 }
 
-static int parse_common_pc(struct tep_handle *pevent, void *data)
+static int parse_common_pc(struct tep_handle *tep, void *data)
 {
-	return __parse_common(pevent, data,
-			      &pevent->pc_size, &pevent->pc_offset,
+	return __parse_common(tep, data,
+			      &tep->pc_size, &tep->pc_offset,
 			      "common_preempt_count");
 }
 
-static int parse_common_flags(struct tep_handle *pevent, void *data)
+static int parse_common_flags(struct tep_handle *tep, void *data)
 {
-	return __parse_common(pevent, data,
-			      &pevent->flags_size, &pevent->flags_offset,
+	return __parse_common(tep, data,
+			      &tep->flags_size, &tep->flags_offset,
 			      "common_flags");
 }
 
-static int parse_common_lock_depth(struct tep_handle *pevent, void *data)
+static int parse_common_lock_depth(struct tep_handle *tep, void *data)
 {
-	return __parse_common(pevent, data,
-			      &pevent->ld_size, &pevent->ld_offset,
+	return __parse_common(tep, data,
+			      &tep->ld_size, &tep->ld_offset,
 			      "common_lock_depth");
 }
 
-static int parse_common_migrate_disable(struct tep_handle *pevent, void *data)
+static int parse_common_migrate_disable(struct tep_handle *tep, void *data)
 {
-	return __parse_common(pevent, data,
-			      &pevent->ld_size, &pevent->ld_offset,
+	return __parse_common(tep, data,
+			      &tep->ld_size, &tep->ld_offset,
 			      "common_migrate_disable");
 }
 
@@ -3566,7 +3566,7 @@ tep_find_event_by_name(struct tep_handle *tep,
 static unsigned long long
 eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg *arg)
 {
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	unsigned long long val = 0;
 	unsigned long long left, right;
 	struct tep_print_arg *typearg = NULL;
@@ -3588,7 +3588,7 @@ eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg
 			
 		}
 		/* must be a number */
-		val = tep_read_number(pevent, data + arg->field.field->offset,
+		val = tep_read_number(tep, data + arg->field.field->offset,
 				      arg->field.field->size);
 		break;
 	case TEP_PRINT_FLAGS:
@@ -3628,11 +3628,11 @@ eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg
 			}
 
 			/* Default to long size */
-			field_size = pevent->long_size;
+			field_size = tep->long_size;
 
 			switch (larg->type) {
 			case TEP_PRINT_DYNAMIC_ARRAY:
-				offset = tep_read_number(pevent,
+				offset = tep_read_number(tep,
 						   data + larg->dynarray.field->offset,
 						   larg->dynarray.field->size);
 				if (larg->dynarray.field->elementsize)
@@ -3661,7 +3661,7 @@ eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg
 			default:
 				goto default_op; /* oops, all bets off */
 			}
-			val = tep_read_number(pevent,
+			val = tep_read_number(tep,
 					      data + offset, field_size);
 			if (typearg)
 				val = eval_type(val, typearg, 1);
@@ -3762,7 +3762,7 @@ eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg
 		}
 		break;
 	case TEP_PRINT_DYNAMIC_ARRAY_LEN:
-		offset = tep_read_number(pevent,
+		offset = tep_read_number(tep,
 					 data + arg->dynarray.field->offset,
 					 arg->dynarray.field->size);
 		/*
@@ -3774,7 +3774,7 @@ eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg
 		break;
 	case TEP_PRINT_DYNAMIC_ARRAY:
 		/* Without [], we pass the address to the dynamic data */
-		offset = tep_read_number(pevent,
+		offset = tep_read_number(tep,
 					 data + arg->dynarray.field->offset,
 					 arg->dynarray.field->size);
 		/*
@@ -3849,7 +3849,7 @@ static void print_str_to_seq(struct trace_seq *s, const char *format,
 		trace_seq_printf(s, format, str);
 }
 
-static void print_bitmask_to_seq(struct tep_handle *pevent,
+static void print_bitmask_to_seq(struct tep_handle *tep,
 				 struct trace_seq *s, const char *format,
 				 int len_arg, const void *data, int size)
 {
@@ -3881,7 +3881,7 @@ static void print_bitmask_to_seq(struct tep_handle *pevent,
 		 * In the kernel, this is an array of long words, thus
 		 * endianness is very important.
 		 */
-		if (pevent->file_bigendian)
+		if (tep->file_bigendian)
 			index = size - (len + 1);
 		else
 			index = len;
@@ -3907,7 +3907,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 			  struct tep_event *event, const char *format,
 			  int len_arg, struct tep_print_arg *arg)
 {
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	struct tep_print_flag_sym *flag;
 	struct tep_format_field *field;
 	struct printk_map *printk;
@@ -3944,7 +3944,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 		 * is a pointer.
 		 */
 		if (!(field->flags & TEP_FIELD_IS_ARRAY) &&
-		    field->size == pevent->long_size) {
+		    field->size == tep->long_size) {
 
 			/* Handle heterogeneous recording and processing
 			 * architectures
@@ -3959,12 +3959,12 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 			 * on 32-bit devices:
 			 * In this case, 64 bits must be read.
 			 */
-			addr = (pevent->long_size == 8) ?
+			addr = (tep->long_size == 8) ?
 				*(unsigned long long *)(data + field->offset) :
 				(unsigned long long)*(unsigned int *)(data + field->offset);
 
 			/* Check if it matches a print format */
-			printk = find_printk(pevent, addr);
+			printk = find_printk(tep, addr);
 			if (printk)
 				trace_seq_puts(s, printk->printk);
 			else
@@ -4021,7 +4021,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 	case TEP_PRINT_HEX_STR:
 		if (arg->hex.field->type == TEP_PRINT_DYNAMIC_ARRAY) {
 			unsigned long offset;
-			offset = tep_read_number(pevent,
+			offset = tep_read_number(tep,
 				data + arg->hex.field->dynarray.field->offset,
 				arg->hex.field->dynarray.field->size);
 			hex = data + (offset & 0xffff);
@@ -4052,7 +4052,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 			unsigned long offset;
 			struct tep_format_field *field =
 				arg->int_array.field->dynarray.field;
-			offset = tep_read_number(pevent,
+			offset = tep_read_number(tep,
 						 data + field->offset,
 						 field->size);
 			num = data + (offset & 0xffff);
@@ -4103,7 +4103,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 			f = tep_find_any_field(event, arg->string.string);
 			arg->string.offset = f->offset;
 		}
-		str_offset = tep_data2host4(pevent, *(unsigned int *)(data + arg->string.offset));
+		str_offset = tep_data2host4(tep, *(unsigned int *)(data + arg->string.offset));
 		str_offset &= 0xffff;
 		print_str_to_seq(s, format, len_arg, ((char *)data) + str_offset);
 		break;
@@ -4121,10 +4121,10 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 			f = tep_find_any_field(event, arg->bitmask.bitmask);
 			arg->bitmask.offset = f->offset;
 		}
-		bitmask_offset = tep_data2host4(pevent, *(unsigned int *)(data + arg->bitmask.offset));
+		bitmask_offset = tep_data2host4(tep, *(unsigned int *)(data + arg->bitmask.offset));
 		bitmask_size = bitmask_offset >> 16;
 		bitmask_offset &= 0xffff;
-		print_bitmask_to_seq(pevent, s, format, len_arg,
+		print_bitmask_to_seq(tep, s, format, len_arg,
 				     data + bitmask_offset, bitmask_size);
 		break;
 	}
@@ -4256,7 +4256,7 @@ static void free_args(struct tep_print_arg *args)
 
 static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, struct tep_event *event)
 {
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	struct tep_format_field *field, *ip_field;
 	struct tep_print_arg *args, *arg, **next;
 	unsigned long long ip, val;
@@ -4264,8 +4264,8 @@ static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, s
 	void *bptr;
 	int vsize = 0;
 
-	field = pevent->bprint_buf_field;
-	ip_field = pevent->bprint_ip_field;
+	field = tep->bprint_buf_field;
+	ip_field = tep->bprint_ip_field;
 
 	if (!field) {
 		field = tep_find_field(event, "buf");
@@ -4278,11 +4278,11 @@ static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, s
 			do_warning_event(event, "can't find ip field for binary printk");
 			return NULL;
 		}
-		pevent->bprint_buf_field = field;
-		pevent->bprint_ip_field = ip_field;
+		tep->bprint_buf_field = field;
+		tep->bprint_ip_field = ip_field;
 	}
 
-	ip = tep_read_number(pevent, data + ip_field->offset, ip_field->size);
+	ip = tep_read_number(tep, data + ip_field->offset, ip_field->size);
 
 	/*
 	 * The first arg is the IP pointer.
@@ -4359,7 +4359,7 @@ static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, s
 					vsize = 4;
 					break;
 				case 1:
-					vsize = pevent->long_size;
+					vsize = tep->long_size;
 					break;
 				case 2:
 					vsize = 8;
@@ -4376,7 +4376,7 @@ static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, s
 				/* the pointers are always 4 bytes aligned */
 				bptr = (void *)(((unsigned long)bptr + 3) &
 						~3);
-				val = tep_read_number(pevent, bptr, vsize);
+				val = tep_read_number(tep, bptr, vsize);
 				bptr += vsize;
 				arg = alloc_arg();
 				if (!arg) {
@@ -4433,13 +4433,13 @@ static char *
 get_bprint_format(void *data, int size __maybe_unused,
 		  struct tep_event *event)
 {
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	unsigned long long addr;
 	struct tep_format_field *field;
 	struct printk_map *printk;
 	char *format;
 
-	field = pevent->bprint_fmt_field;
+	field = tep->bprint_fmt_field;
 
 	if (!field) {
 		field = tep_find_field(event, "fmt");
@@ -4447,12 +4447,12 @@ get_bprint_format(void *data, int size __maybe_unused,
 			do_warning_event(event, "can't find format field for binary printk");
 			return NULL;
 		}
-		pevent->bprint_fmt_field = field;
+		tep->bprint_fmt_field = field;
 	}
 
-	addr = tep_read_number(pevent, data + field->offset, field->size);
+	addr = tep_read_number(tep, data + field->offset, field->size);
 
-	printk = find_printk(pevent, addr);
+	printk = find_printk(tep, addr);
 	if (!printk) {
 		if (asprintf(&format, "%%pf: (NO FORMAT FOUND at %llx)\n", addr) < 0)
 			return NULL;
@@ -4834,13 +4834,13 @@ void tep_print_field(struct trace_seq *s, void *data,
 {
 	unsigned long long val;
 	unsigned int offset, len, i;
-	struct tep_handle *pevent = field->event->tep;
+	struct tep_handle *tep = field->event->tep;
 
 	if (field->flags & TEP_FIELD_IS_ARRAY) {
 		offset = field->offset;
 		len = field->size;
 		if (field->flags & TEP_FIELD_IS_DYNAMIC) {
-			val = tep_read_number(pevent, data + offset, len);
+			val = tep_read_number(tep, data + offset, len);
 			offset = val;
 			len = offset >> 16;
 			offset &= 0xffff;
@@ -4860,7 +4860,7 @@ void tep_print_field(struct trace_seq *s, void *data,
 			field->flags &= ~TEP_FIELD_IS_STRING;
 		}
 	} else {
-		val = tep_read_number(pevent, data + field->offset,
+		val = tep_read_number(tep, data + field->offset,
 				      field->size);
 		if (field->flags & TEP_FIELD_IS_POINTER) {
 			trace_seq_printf(s, "0x%llx", val);
@@ -4909,7 +4909,7 @@ void tep_print_fields(struct trace_seq *s, void *data,
 
 static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_event *event)
 {
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	struct tep_print_fmt *print_fmt = &event->print_fmt;
 	struct tep_print_arg *arg = print_fmt->args;
 	struct tep_print_arg *args = NULL;
@@ -5001,7 +5001,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_e
 			case '-':
 				goto cont_process;
 			case 'p':
-				if (pevent->long_size == 4)
+				if (tep->long_size == 4)
 					ls = 1;
 				else
 					ls = 2;
@@ -5062,7 +5062,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_e
 				arg = arg->next;
 
 				if (show_func) {
-					func = find_func(pevent, val);
+					func = find_func(tep, val);
 					if (func) {
 						trace_seq_puts(s, func->func);
 						if (show_func == 'F')
@@ -5072,7 +5072,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_e
 						break;
 					}
 				}
-				if (pevent->long_size == 8 && ls == 1 &&
+				if (tep->long_size == 8 && ls == 1 &&
 				    sizeof(long) != 8) {
 					char *p;
 
@@ -5319,14 +5319,14 @@ const char *tep_data_comm_from_pid(struct tep_handle *tep, int pid)
 }
 
 static struct tep_cmdline *
-pid_from_cmdlist(struct tep_handle *pevent, const char *comm, struct tep_cmdline *next)
+pid_from_cmdlist(struct tep_handle *tep, const char *comm, struct tep_cmdline *next)
 {
 	struct cmdline_list *cmdlist = (struct cmdline_list *)next;
 
 	if (cmdlist)
 		cmdlist = cmdlist->next;
 	else
-		cmdlist = pevent->cmdlist;
+		cmdlist = tep->cmdlist;
 
 	while (cmdlist && strcmp(cmdlist->comm, comm) != 0)
 		cmdlist = cmdlist->next;
@@ -6012,11 +6012,11 @@ static void free_handler(struct event_handler *handle)
 	free(handle);
 }
 
-static int find_event_handle(struct tep_handle *pevent, struct tep_event *event)
+static int find_event_handle(struct tep_handle *tep, struct tep_event *event)
 {
 	struct event_handler *handle, **next;
 
-	for (next = &pevent->handlers; *next;
+	for (next = &tep->handlers; *next;
 	     next = &(*next)->next) {
 		handle = *next;
 		if (event_matches(event, handle->id,
@@ -6054,7 +6054,7 @@ static int find_event_handle(struct tep_handle *pevent, struct tep_event *event)
  * /sys/kernel/debug/tracing/events/.../.../format
  */
 enum tep_errno __tep_parse_format(struct tep_event **eventp,
-				  struct tep_handle *pevent, const char *buf,
+				  struct tep_handle *tep, const char *buf,
 				  unsigned long size, const char *sys)
 {
 	struct tep_event *event;
@@ -6096,8 +6096,8 @@ enum tep_errno __tep_parse_format(struct tep_event **eventp,
 		goto event_alloc_failed;
 	}
 
-	/* Add pevent to event so that it can be referenced */
-	event->tep = pevent;
+	/* Add tep to event so that it can be referenced */
+	event->tep = tep;
 
 	ret = event_read_format(event);
 	if (ret < 0) {
@@ -6109,7 +6109,7 @@ enum tep_errno __tep_parse_format(struct tep_event **eventp,
 	 * If the event has an override, don't print warnings if the event
 	 * print format fails to parse.
 	 */
-	if (pevent && find_event_handle(pevent, event))
+	if (tep && find_event_handle(tep, event))
 		show_warning = 0;
 
 	ret = event_read_print(event);
@@ -6161,18 +6161,18 @@ enum tep_errno __tep_parse_format(struct tep_event **eventp,
 }
 
 static enum tep_errno
-__parse_event(struct tep_handle *pevent,
+__parse_event(struct tep_handle *tep,
 	      struct tep_event **eventp,
 	      const char *buf, unsigned long size,
 	      const char *sys)
 {
-	int ret = __tep_parse_format(eventp, pevent, buf, size, sys);
+	int ret = __tep_parse_format(eventp, tep, buf, size, sys);
 	struct tep_event *event = *eventp;
 
 	if (event == NULL)
 		return ret;
 
-	if (pevent && add_event(pevent, event)) {
+	if (tep && add_event(tep, event)) {
 		ret = TEP_ERRNO__MEM_ALLOC_FAILED;
 		goto event_add_failed;
 	}
@@ -6432,7 +6432,7 @@ int tep_print_func_field(struct trace_seq *s, const char *fmt,
 			 struct tep_record *record, int err)
 {
 	struct tep_format_field *field = tep_find_field(event, name);
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	unsigned long long val;
 	struct func_map *func;
 	char tmp[128];
@@ -6443,7 +6443,7 @@ int tep_print_func_field(struct trace_seq *s, const char *fmt,
 	if (tep_read_number_field(field, record->data, &val))
 		goto failed;
 
-	func = find_func(pevent, val);
+	func = find_func(tep, val);
 
 	if (func)
 		snprintf(tmp, 128, "%s/0x%llx", func->func, func->addr - val);
@@ -6588,7 +6588,7 @@ int tep_unregister_print_function(struct tep_handle *tep,
 	return -1;
 }
 
-static struct tep_event *search_event(struct tep_handle *pevent, int id,
+static struct tep_event *search_event(struct tep_handle *tep, int id,
 				      const char *sys_name,
 				      const char *event_name)
 {
@@ -6596,7 +6596,7 @@ static struct tep_event *search_event(struct tep_handle *pevent, int id,
 
 	if (id >= 0) {
 		/* search by id */
-		event = tep_find_event(pevent, id);
+		event = tep_find_event(tep, id);
 		if (!event)
 			return NULL;
 		if (event_name && (strcmp(event_name, event->name) != 0))
@@ -6604,7 +6604,7 @@ static struct tep_event *search_event(struct tep_handle *pevent, int id,
 		if (sys_name && (strcmp(sys_name, event->system) != 0))
 			return NULL;
 	} else {
-		event = tep_find_event_by_name(pevent, sys_name, event_name);
+		event = tep_find_event_by_name(tep, sys_name, event_name);
 		if (!event)
 			return NULL;
 	}
@@ -6761,14 +6761,14 @@ int tep_unregister_event_handler(struct tep_handle *tep, int id,
  */
 struct tep_handle *tep_alloc(void)
 {
-	struct tep_handle *pevent = calloc(1, sizeof(*pevent));
+	struct tep_handle *tep = calloc(1, sizeof(*tep));
 
-	if (pevent) {
-		pevent->ref_count = 1;
-		pevent->host_bigendian = tep_is_bigendian();
+	if (tep) {
+		tep->ref_count = 1;
+		tep->host_bigendian = tep_is_bigendian();
 	}
 
-	return pevent;
+	return tep;
 }
 
 void tep_ref(struct tep_handle *tep)
diff --git a/tools/lib/traceevent/event-plugin.c b/tools/lib/traceevent/event-plugin.c
index d0488de0174a..8ca28de9337a 100644
--- a/tools/lib/traceevent/event-plugin.c
+++ b/tools/lib/traceevent/event-plugin.c
@@ -269,7 +269,7 @@ void tep_print_plugins(struct trace_seq *s,
 }
 
 static void
-load_plugin(struct tep_handle *pevent, const char *path,
+load_plugin(struct tep_handle *tep, const char *path,
 	    const char *file, void *data)
 {
 	struct tep_plugin_list **plugin_list = data;
@@ -316,7 +316,7 @@ load_plugin(struct tep_handle *pevent, const char *path,
 	*plugin_list = list;
 
 	pr_stat("registering plugin: %s", plugin);
-	func(pevent);
+	func(tep);
 	return;
 
  out_free:
@@ -324,9 +324,9 @@ load_plugin(struct tep_handle *pevent, const char *path,
 }
 
 static void
-load_plugins_dir(struct tep_handle *pevent, const char *suffix,
+load_plugins_dir(struct tep_handle *tep, const char *suffix,
 		 const char *path,
-		 void (*load_plugin)(struct tep_handle *pevent,
+		 void (*load_plugin)(struct tep_handle *tep,
 				     const char *path,
 				     const char *name,
 				     void *data),
@@ -359,15 +359,15 @@ load_plugins_dir(struct tep_handle *pevent, const char *suffix,
 		if (strcmp(name + (strlen(name) - strlen(suffix)), suffix) != 0)
 			continue;
 
-		load_plugin(pevent, path, name, data);
+		load_plugin(tep, path, name, data);
 	}
 
 	closedir(dir);
 }
 
 static void
-load_plugins(struct tep_handle *pevent, const char *suffix,
-	     void (*load_plugin)(struct tep_handle *pevent,
+load_plugins(struct tep_handle *tep, const char *suffix,
+	     void (*load_plugin)(struct tep_handle *tep,
 				 const char *path,
 				 const char *name,
 				 void *data),
@@ -378,7 +378,7 @@ load_plugins(struct tep_handle *pevent, const char *suffix,
 	char *envdir;
 	int ret;
 
-	if (pevent->flags & TEP_DISABLE_PLUGINS)
+	if (tep->flags & TEP_DISABLE_PLUGINS)
 		return;
 
 	/*
@@ -386,8 +386,8 @@ load_plugins(struct tep_handle *pevent, const char *suffix,
 	 * check that first.
 	 */
 #ifdef PLUGIN_DIR
-	if (!(pevent->flags & TEP_DISABLE_SYS_PLUGINS))
-		load_plugins_dir(pevent, suffix, PLUGIN_DIR,
+	if (!(tep->flags & TEP_DISABLE_SYS_PLUGINS))
+		load_plugins_dir(tep, suffix, PLUGIN_DIR,
 				 load_plugin, data);
 #endif
 
@@ -397,7 +397,7 @@ load_plugins(struct tep_handle *pevent, const char *suffix,
 	 */
 	envdir = getenv("TRACEEVENT_PLUGIN_DIR");
 	if (envdir)
-		load_plugins_dir(pevent, suffix, envdir, load_plugin, data);
+		load_plugins_dir(tep, suffix, envdir, load_plugin, data);
 
 	/*
 	 * Now let the home directory override the environment
@@ -413,7 +413,7 @@ load_plugins(struct tep_handle *pevent, const char *suffix,
 		return;
 	}
 
-	load_plugins_dir(pevent, suffix, path, load_plugin, data);
+	load_plugins_dir(tep, suffix, path, load_plugin, data);
 
 	free(path);
 }
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index 1d2f1343090d..298694356277 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -256,7 +256,7 @@ static int event_match(struct tep_event *event,
 }
 
 static enum tep_errno
-find_event(struct tep_handle *pevent, struct event_list **events,
+find_event(struct tep_handle *tep, struct event_list **events,
 	   char *sys_name, char *event_name)
 {
 	struct tep_event *event;
@@ -299,8 +299,8 @@ find_event(struct tep_handle *pevent, struct event_list **events,
 		}
 	}
 
-	for (i = 0; i < pevent->nr_events; i++) {
-		event = pevent->events[i];
+	for (i = 0; i < tep->nr_events; i++) {
+		event = tep->events[i];
 		if (event_match(event, sys_name ? &sreg : NULL, &ereg)) {
 			match = 1;
 			if (add_event(events, event) < 0) {
@@ -1257,7 +1257,7 @@ static void filter_init_error_buf(struct tep_event_filter *filter)
 enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
 					 const char *filter_str)
 {
-	struct tep_handle *pevent = filter->tep;
+	struct tep_handle *tep = filter->tep;
 	struct event_list *event;
 	struct event_list *events = NULL;
 	const char *filter_start;
@@ -1313,7 +1313,7 @@ enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
 		}
 
 		/* Find this event */
-		ret = find_event(pevent, &events, strim(sys_name), strim(event_name));
+		ret = find_event(tep, &events, strim(sys_name), strim(event_name));
 		if (ret < 0) {
 			free_events(events);
 			free(this_event);
@@ -1334,7 +1334,7 @@ enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
 		if (ret < 0)
 			rtn = ret;
 
-		if (ret >= 0 && pevent->test_filters) {
+		if (ret >= 0 && tep->test_filters) {
 			char *test;
 			test = tep_filter_make_string(filter, event->event->id);
 			if (test) {
@@ -1346,7 +1346,7 @@ enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
 
 	free_events(events);
 
-	if (rtn >= 0 && pevent->test_filters)
+	if (rtn >= 0 && tep->test_filters)
 		exit(0);
 
 	return rtn;
@@ -1462,7 +1462,7 @@ static int copy_filter_type(struct tep_event_filter *filter,
 	const char *name;
 	char *str;
 
-	/* Can't assume that the pevent's are the same */
+	/* Can't assume that the tep's are the same */
 	sys = filter_type->event->system;
 	name = filter_type->event->name;
 	event = tep_find_event_by_name(filter->tep, sys, name);
@@ -1700,7 +1700,7 @@ static int test_num(struct tep_event *event, struct tep_filter_arg *arg,
 static const char *get_field_str(struct tep_filter_arg *arg, struct tep_record *record)
 {
 	struct tep_event *event;
-	struct tep_handle *pevent;
+	struct tep_handle *tep;
 	unsigned long long addr;
 	const char *val = NULL;
 	unsigned int size;
@@ -1730,12 +1730,12 @@ static const char *get_field_str(struct tep_filter_arg *arg, struct tep_record *
 
 	} else {
 		event = arg->str.field->event;
-		pevent = event->tep;
+		tep = event->tep;
 		addr = get_value(event, arg->str.field, record);
 
 		if (arg->str.field->flags & (TEP_FIELD_IS_POINTER | TEP_FIELD_IS_LONG))
 			/* convert to a kernel symbol */
-			val = tep_find_function(pevent, addr);
+			val = tep_find_function(tep, addr);
 
 		if (val == NULL) {
 			/* just use the hex of the string name */
@@ -1875,7 +1875,7 @@ int tep_event_filtered(struct tep_event_filter *filter, int event_id)
 enum tep_errno tep_filter_match(struct tep_event_filter *filter,
 				struct tep_record *record)
 {
-	struct tep_handle *pevent = filter->tep;
+	struct tep_handle *tep = filter->tep;
 	struct tep_filter_type *filter_type;
 	int event_id;
 	int ret;
@@ -1886,7 +1886,7 @@ enum tep_errno tep_filter_match(struct tep_event_filter *filter,
 	if (!filter->filters)
 		return TEP_ERRNO__NO_FILTER;
 
-	event_id = tep_data_type(pevent, record);
+	event_id = tep_data_type(tep, record);
 
 	filter_type = find_filter_type(filter, event_id);
 	if (!filter_type)
diff --git a/tools/lib/traceevent/plugin_function.c b/tools/lib/traceevent/plugin_function.c
index d6a8df060614..7770fcb78e0f 100644
--- a/tools/lib/traceevent/plugin_function.c
+++ b/tools/lib/traceevent/plugin_function.c
@@ -126,7 +126,7 @@ static int add_and_get_index(const char *parent, const char *child, int cpu)
 static int function_handler(struct trace_seq *s, struct tep_record *record,
 			    struct tep_event *event, void *context)
 {
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	unsigned long long function;
 	unsigned long long pfunction;
 	const char *func;
@@ -136,12 +136,12 @@ static int function_handler(struct trace_seq *s, struct tep_record *record,
 	if (tep_get_field_val(s, event, "ip", record, &function, 1))
 		return trace_seq_putc(s, '!');
 
-	func = tep_find_function(pevent, function);
+	func = tep_find_function(tep, function);
 
 	if (tep_get_field_val(s, event, "parent_ip", record, &pfunction, 1))
 		return trace_seq_putc(s, '!');
 
-	parent = tep_find_function(pevent, pfunction);
+	parent = tep_find_function(tep, pfunction);
 
 	if (parent && ftrace_indent->set)
 		index = add_and_get_index(parent, func, record->cpu);
-- 
2.20.1


^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH 8/8] tools/lib/traceevent: remove call to exit() from tep_filter_add_filter_str()
  2019-03-26 15:43 [PATCH 0/8] Cleanup traceevent API and make it more consistent Tzvetomir Stoyanov
                   ` (6 preceding siblings ...)
  2019-03-26 15:43 ` [PATCH 7/8] tools/lib/traceevent: rename input arguments and local variables of libtraceevent from pevent to tep Tzvetomir Stoyanov
@ 2019-03-26 15:43 ` Tzvetomir Stoyanov
  2019-03-26 20:02   ` Steven Rostedt
  7 siblings, 1 reply; 55+ messages in thread
From: Tzvetomir Stoyanov @ 2019-03-26 15:43 UTC (permalink / raw)
  To: rostedt; +Cc: linux-trace-devel, linux-kernel

This patch removes call to exit() from tep_filter_add_filter_str(). A library
function should not force the application to exit. In the current implementation
tep_filter_add_filter_str() calls exit() when a special "test_filters" mode is
set, used only for debugging purposes. When this mode is set and a filter is
added - its string is printed to the console and exit() is called. This patch
changes the logic - when in "test_filters" mode, the filter string is still
printed, but the exit() is not called. It is up to the application to track when
"test_filters" mode is set and to call exit, if needed.

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
---
 tools/lib/traceevent/parse-filter.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index 298694356277..552592d153fb 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -1346,9 +1346,6 @@ enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
 
 	free_events(events);
 
-	if (rtn >= 0 && tep->test_filters)
-		exit(0);
-
 	return rtn;
 }
 
-- 
2.20.1


^ permalink raw reply	[flat|nested] 55+ messages in thread

* Re: [PATCH 1/8] tools/perf,tools/lib/traceevent: Make traceevent APIs more consistent
  2019-03-26 15:43 ` [PATCH 1/8] tools/perf,tools/lib/traceevent: Make traceevent APIs " Tzvetomir Stoyanov
@ 2019-03-26 19:43   ` Steven Rostedt
  0 siblings, 0 replies; 55+ messages in thread
From: Steven Rostedt @ 2019-03-26 19:43 UTC (permalink / raw)
  To: Tzvetomir Stoyanov; +Cc: linux-trace-devel, linux-kernel

On Tue, 26 Mar 2019 17:43:21 +0200
Tzvetomir Stoyanov <tstoyanov@vmware.com> wrote:

> Rename some traceevent APIs for consistency:
> 
> tep_pid_is_registered() to tep_is_pid_registered()
> tep_file_bigendian() to tep_is_file_bigendian()
>   to make the names and return values consistent with other tep_is_... APIs
> 
> tep_data_lat_fmt() to tep_data_latency_format()
>   to make the name more descriptive
> 
> tep_host_bigendian() to tep_is_bigendian()
> tep_set_host_bigendian() to tep_set_local_bigendian()
> tep_is_host_bigendian() to tep_is_local_bigendian()
>   "host" can be confused with VMs, and "local" is about the local
>   machine. All tep_is_..._bigendian(struct tep_handle *tep) APIs return
>   the saved data in the tep handle, while tep_is_bigendian() returns
>   the running machine's endianness.
> 
> All tep_is_... functions are modified to return bool value, instead of int.

Much nicer ;-)

> 
> Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
> ---
>  tools/lib/traceevent/event-parse-api.c | 44 +++++++++++++-------------
>  tools/lib/traceevent/event-parse.c     | 26 +++++++--------
>  tools/lib/traceevent/event-parse.h     | 16 +++++-----
>  tools/lib/traceevent/plugin_kvm.c      |  4 +--
>  tools/perf/util/trace-event-read.c     |  2 +-
>  tools/perf/util/trace-event.c          |  4 +--
>  6 files changed, 48 insertions(+), 48 deletions(-)
> 
> diff --git a/tools/lib/traceevent/event-parse-api.c b/tools/lib/traceevent/event-parse-api.c
> index 2ac8b44854ce..46670bb87051 100644
> --- a/tools/lib/traceevent/event-parse-api.c
> +++ b/tools/lib/traceevent/event-parse-api.c
> @@ -88,7 +88,7 @@ void tep_clear_flag(struct tep_handle *tep, enum tep_flag flag)
>  bool tep_test_flag(struct tep_handle *tep, enum tep_flag flag)
>  {
>  	if (tep)
> -		return (tep->flags & flag);
> +		return !!(tep->flags & flag);

This isn't needed. The fact hat this returns "bool", the compiler will
handle thins the same regardless.

>  	return false;
>  }
>  


> @@ -306,14 +306,14 @@ void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian)
>   * tep_is_latency_format - get if the latency output format is configured
>   * @pevent: a handle to the tep_handle
>   *
> - * This gets if the latency output format is configured
> - * If @pevent is NULL, 0 is returned.
> + * This returns true if the latency output format is configured
> + * If @pevent is NULL, false is returned.
>   */
> -int tep_is_latency_format(struct tep_handle *pevent)
> +bool tep_is_latency_format(struct tep_handle *pevent)
>  {
>  	if (pevent)
> -		return pevent->latency_format;
> -	return 0;
> +		return !!(pevent->latency_format);

Same here.

> +	return false;
>  }
>  
>  /**

The rest looks good.

-- Steve



^ permalink raw reply	[flat|nested] 55+ messages in thread

* Re: [PATCH 2/8] tools/lib/traceevent: Add counter to track parsing failures
  2019-03-26 15:43 ` [PATCH 2/8] tools/lib/traceevent: Add counter to track parsing failures Tzvetomir Stoyanov
@ 2019-03-26 19:48   ` Steven Rostedt
  0 siblings, 0 replies; 55+ messages in thread
From: Steven Rostedt @ 2019-03-26 19:48 UTC (permalink / raw)
  To: Tzvetomir Stoyanov; +Cc: linux-trace-devel, linux-kernel

On Tue, 26 Mar 2019 17:43:22 +0200
Tzvetomir Stoyanov <tstoyanov@vmware.com> wrote:

> This patch adds a parsing failures counter to struct tep_handle. The counter can
> be used to track failures on parsing event format files. It is updated
> automatically by tep_parse_event(), when failure is detected. The patch also
> adds two new APIs for accessing the counter:
>  tep_get_parsing_failures() - returns the current value of the counter.
>  tep_clear_parsing_failures() - clears the counter.
> 

I think we can do the same thing here as we did test_filters.

I don't think we really need to put this into the tep interface. Let's
see if we can move this into trace-cmd itself and have it just keep
track of when parsing failed.

I mean, trace-cmd is just using the tep structure as place to store
this variable.

-- Steve

^ permalink raw reply	[flat|nested] 55+ messages in thread

* Re: [PATCH 3/8] tools/lib/traceevent: Remove tep filter trivial APIs
  2019-03-26 15:43 ` [PATCH 3/8] tools/lib/traceevent: Remove tep filter trivial APIs Tzvetomir Stoyanov
@ 2019-03-26 19:50   ` Steven Rostedt
  0 siblings, 0 replies; 55+ messages in thread
From: Steven Rostedt @ 2019-03-26 19:50 UTC (permalink / raw)
  To: Tzvetomir Stoyanov; +Cc: linux-trace-devel, linux-kernel

On Tue, 26 Mar 2019 17:43:23 +0200
Tzvetomir Stoyanov <tstoyanov@vmware.com> wrote:

> This patch removes trivial filter tep APIs:
>  enum tep_filter_trivial_type
>  tep_filter_event_has_trivial()
>  tep_update_trivial()
>  tep_filter_clear_trivial()
> 
> Trivial filters is an optimization, used only in the first
> version of KernelShark. The API is deprecated, the next KernelShark
> release does not use it.
> 
> Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
>

This patch looks fine to me. I'm taking it now. You shouldn't need to
send it again in newer series.

-- Steve

^ permalink raw reply	[flat|nested] 55+ messages in thread

* Re: [PATCH 4/8] tools/lib/traceevent: rename input arguments of libtraceevent APIs from pevent to tep
  2019-03-26 15:43 ` [PATCH 4/8] tools/lib/traceevent: rename input arguments of libtraceevent APIs from pevent to tep Tzvetomir Stoyanov
@ 2019-03-26 19:57   ` Steven Rostedt
  2019-03-26 19:58     ` Steven Rostedt
  0 siblings, 1 reply; 55+ messages in thread
From: Steven Rostedt @ 2019-03-26 19:57 UTC (permalink / raw)
  To: Tzvetomir Stoyanov; +Cc: linux-trace-devel, linux-kernel

On Tue, 26 Mar 2019 17:43:24 +0200
Tzvetomir Stoyanov <tstoyanov@vmware.com> wrote:

> This patch renames "struct tep_handle *pevent" input arguments of libtraceevent
> APIs to "struct tep_handle *tep". This makes the API consistent with the chosen
> naming convention: tep (trace event parser), instead of the old pevent.
> 
> Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>

I have no problems with this patch, but as I didn't apply some of the
earlier patches, this one doesn't apply, so you will need to send it
again in the next series.

-- Steve

^ permalink raw reply	[flat|nested] 55+ messages in thread

* Re: [PATCH 4/8] tools/lib/traceevent: rename input arguments of libtraceevent APIs from pevent to tep
  2019-03-26 19:57   ` Steven Rostedt
@ 2019-03-26 19:58     ` Steven Rostedt
  0 siblings, 0 replies; 55+ messages in thread
From: Steven Rostedt @ 2019-03-26 19:58 UTC (permalink / raw)
  To: Tzvetomir Stoyanov; +Cc: linux-trace-devel, linux-kernel

On Tue, 26 Mar 2019 15:57:41 -0400
Steven Rostedt <rostedt@goodmis.org> wrote:

> On Tue, 26 Mar 2019 17:43:24 +0200
> Tzvetomir Stoyanov <tstoyanov@vmware.com> wrote:
> 
> > This patch renames "struct tep_handle *pevent" input arguments of libtraceevent
> > APIs to "struct tep_handle *tep". This makes the API consistent with the chosen
> > naming convention: tep (trace event parser), instead of the old pevent.
> > 
> > Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>  
> 
> I have no problems with this patch, but as I didn't apply some of the
> earlier patches, this one doesn't apply, so you will need to send it
> again in the next series.

Oh, I do have one issue. Don't forget to capitalize the first word in
the subject. "s/rename input/Rename input/"

That goes with the other patches as well.

-- Steve

^ permalink raw reply	[flat|nested] 55+ messages in thread

* Re: [PATCH 8/8] tools/lib/traceevent: remove call to exit() from tep_filter_add_filter_str()
  2019-03-26 15:43 ` [PATCH 8/8] tools/lib/traceevent: remove call to exit() from tep_filter_add_filter_str() Tzvetomir Stoyanov
@ 2019-03-26 20:02   ` Steven Rostedt
  0 siblings, 0 replies; 55+ messages in thread
From: Steven Rostedt @ 2019-03-26 20:02 UTC (permalink / raw)
  To: Tzvetomir Stoyanov; +Cc: linux-trace-devel, linux-kernel

On Tue, 26 Mar 2019 17:43:28 +0200
Tzvetomir Stoyanov <tstoyanov@vmware.com> wrote:

> This patch removes call to exit() from tep_filter_add_filter_str(). A library
> function should not force the application to exit. In the current implementation
> tep_filter_add_filter_str() calls exit() when a special "test_filters" mode is
> set, used only for debugging purposes. When this mode is set and a filter is
> added - its string is printed to the console and exit() is called. This patch
> changes the logic - when in "test_filters" mode, the filter string is still
> printed, but the exit() is not called. It is up to the application to track when
> "test_filters" mode is set and to call exit, if needed.

I applied this one too (after changing tep back to pevent so that it
will apply without the other patches).

I'll start testing these and then send them to Arnaldo when complete.

Thanks!

-- Steve

> 
> Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
> ---
>  tools/lib/traceevent/parse-filter.c | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
> index 298694356277..552592d153fb 100644
> --- a/tools/lib/traceevent/parse-filter.c
> +++ b/tools/lib/traceevent/parse-filter.c
> @@ -1346,9 +1346,6 @@ enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
>  
>  	free_events(events);
>  
> -	if (rtn >= 0 && tep->test_filters)
> -		exit(0);
> -
>  	return rtn;
>  }
>  


^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH v2 0/5] Cleanup traceevent API and make it more consistent
@ 2019-03-27 14:19 Tzvetomir Stoyanov
  2019-03-27 14:19 ` [PATCH v2 1/5] tools/perf,tools/lib/traceevent: Make traceevent APIs " Tzvetomir Stoyanov
                   ` (4 more replies)
  0 siblings, 5 replies; 55+ messages in thread
From: Tzvetomir Stoyanov @ 2019-03-27 14:19 UTC (permalink / raw)
  To: rostedt; +Cc: linux-trace-devel, linux-kernel

[
 v2 changes:
  - Excluded patches:
     "tools/lib/traceevent: Remove tep filter trivial APIs"
     "tools/lib/traceevent: remove call to exit() from tep_filter_add_filter_str()"
    from the series, as they are already merged.
  - Dropped patch "tools/lib/traceevent: Add counter to track parsing failures",
    this functionality will not be part of the traceevent library. Applications
    should track parsing failures themselves.
  - Few minor changes, to address Steven Rostedt comments 
]

This patch series does a cleanup of traceevent implementation and APIs:
 - All "pevent" function parameters and local variables are renamed to "tep". 
   This makes the implementation consistent with the chosen naming convention, 
   tep (trace event parser), and avoids any confusion with the old "pevent" name. 
 - Renamed a bunch of tracevent APIs, to make names consistent and descriptive.
 - Unified all tep_is_... APIs to return bool value, instead of int.

Changes depend on "Few patches, related to libtracevent APIs" patchset and 
should be applied on top of it.

Tzvetomir Stoyanov (5):
  tools/perf,tools/lib/traceevent: Make traceevent APIs more consistent
  tools/lib/traceevent: Rename input arguments of libtraceevent APIs
    from pevent to tep
  tools/perf,tools/lib/traceevent: Rename "pevent" member of struct
    tep_event to "tep"
  tools/perf,tools/lib/traceevent: Rename "pevent" member of struct
    tep_event_filter to "tep"
  tools/lib/traceevent: Rename input arguments and local variables of
    libtraceevent from pevent to tep

 tools/lib/traceevent/event-parse-api.c        | 152 ++--
 tools/lib/traceevent/event-parse-local.h      |   6 +-
 tools/lib/traceevent/event-parse.c            | 811 +++++++++---------
 tools/lib/traceevent/event-parse.h            | 130 +--
 tools/lib/traceevent/event-plugin.c           |  32 +-
 tools/lib/traceevent/parse-filter.c           |  46 +-
 tools/lib/traceevent/plugin_cfg80211.c        |   8 +-
 tools/lib/traceevent/plugin_function.c        |  14 +-
 tools/lib/traceevent/plugin_hrtimer.c         |  12 +-
 tools/lib/traceevent/plugin_jbd2.c            |  12 +-
 tools/lib/traceevent/plugin_kmem.c            |  32 +-
 tools/lib/traceevent/plugin_kvm.c             |  48 +-
 tools/lib/traceevent/plugin_mac80211.c        |   8 +-
 tools/lib/traceevent/plugin_sched_switch.c    |  18 +-
 tools/lib/traceevent/plugin_scsi.c            |   8 +-
 tools/lib/traceevent/plugin_xen.c             |   8 +-
 tools/perf/builtin-kmem.c                     |   2 +-
 tools/perf/util/data-convert-bt.c             |   4 +-
 tools/perf/util/python.c                      |   2 +-
 .../util/scripting-engines/trace-event-perl.c |   2 +-
 .../scripting-engines/trace-event-python.c    |   2 +-
 tools/perf/util/trace-event-parse.c           |   2 +-
 tools/perf/util/trace-event-read.c            |   2 +-
 tools/perf/util/trace-event.c                 |   4 +-
 24 files changed, 682 insertions(+), 683 deletions(-)

-- 
2.20.1


^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH v2 1/5] tools/perf,tools/lib/traceevent: Make traceevent APIs more consistent
  2019-03-27 14:19 [PATCH v2 0/5] Cleanup traceevent API and make it more consistent Tzvetomir Stoyanov
@ 2019-03-27 14:19 ` Tzvetomir Stoyanov
  2019-03-27 14:41   ` Steven Rostedt
  2019-03-27 14:19 ` [PATCH v2 2/5] tools/lib/traceevent: Rename input arguments of libtraceevent APIs from pevent to tep Tzvetomir Stoyanov
                   ` (3 subsequent siblings)
  4 siblings, 1 reply; 55+ messages in thread
From: Tzvetomir Stoyanov @ 2019-03-27 14:19 UTC (permalink / raw)
  To: rostedt; +Cc: linux-trace-devel, linux-kernel

Rename some traceevent APIs for consistency:

tep_pid_is_registered() to tep_is_pid_registered()
tep_file_bigendian() to tep_is_file_bigendian()
  to make the names and return values consistent with other tep_is_... APIs

tep_data_lat_fmt() to tep_data_latency_format()
  to make the name more descriptive

tep_host_bigendian() to tep_is_bigendian()
tep_set_host_bigendian() to tep_set_local_bigendian()
tep_is_host_bigendian() to tep_is_local_bigendian()
  "host" can be confused with VMs, and "local" is about the local
  machine. All tep_is_..._bigendian(struct tep_handle *tep) APIs return
  the saved data in the tep handle, while tep_is_bigendian() returns
  the running machine's endianness.

All tep_is_... functions are modified to return bool value, instead of int.

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
---
 tools/lib/traceevent/event-parse-api.c | 42 +++++++++++++-------------
 tools/lib/traceevent/event-parse.c     | 26 ++++++++--------
 tools/lib/traceevent/event-parse.h     | 16 +++++-----
 tools/lib/traceevent/plugin_kvm.c      |  4 +--
 tools/perf/util/trace-event-read.c     |  2 +-
 tools/perf/util/trace-event.c          |  4 +--
 6 files changed, 47 insertions(+), 47 deletions(-)

diff --git a/tools/lib/traceevent/event-parse-api.c b/tools/lib/traceevent/event-parse-api.c
index 2ac8b44854ce..1597e498607c 100644
--- a/tools/lib/traceevent/event-parse-api.c
+++ b/tools/lib/traceevent/event-parse-api.c
@@ -155,10 +155,10 @@ int tep_get_header_page_size(struct tep_handle *pevent)
 }
 
 /**
- * tep_get_header_timestamp_size - get size of the time stamp in the header page
+ * tep_get_header_timestamp_size - get size of the timestamp in the header page
  * @tep: a handle to the tep_handle
  *
- * This returns size of the time stamp in the header page
+ * This returns size of the timestamp in the header page
  * If @tep is NULL, 0 is returned.
  */
 int tep_get_header_timestamp_size(struct tep_handle *tep)
@@ -249,17 +249,17 @@ void tep_set_page_size(struct tep_handle *pevent, int _page_size)
 }
 
 /**
- * tep_file_bigendian - get if the file is in big endian order
+ * tep_is_file_bigendian - return the endian of the file
  * @pevent: a handle to the tep_handle
  *
- * This returns if the file is in big endian order
- * If @pevent is NULL, 0 is returned.
+ * This returns true if the file is in big endian order
+ * If @pevent is NULL, false is returned.
  */
-int tep_file_bigendian(struct tep_handle *pevent)
+bool tep_is_file_bigendian(struct tep_handle *pevent)
 {
 	if (pevent)
-		return pevent->file_bigendian;
-	return 0;
+		return (pevent->file_bigendian == TEP_BIG_ENDIAN);
+	return false;
 }
 
 /**
@@ -276,27 +276,27 @@ void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian)
 }
 
 /**
- * tep_is_host_bigendian - get if the order of the current host is big endian
+ * tep_is_local_bigendian - return the endian of the saved local machine
  * @pevent: a handle to the tep_handle
  *
- * This gets if the order of the current host is big endian
- * If @pevent is NULL, 0 is returned.
+ * This returns true if the saved local machine in @pevent is big endian.
+ * If @pevent is NULL, false is returned.
  */
-int tep_is_host_bigendian(struct tep_handle *pevent)
+bool tep_is_local_bigendian(struct tep_handle *pevent)
 {
 	if (pevent)
-		return pevent->host_bigendian;
+		return (pevent->host_bigendian == TEP_BIG_ENDIAN);
 	return 0;
 }
 
 /**
- * tep_set_host_bigendian - set the order of the local host
+ * tep_set_local_bigendian - set the stored local machine endian order
  * @pevent: a handle to the tep_handle
  * @endian: non zero, if the local host has big endian order
  *
- * This sets the order of the local host
+ * This sets the endian order for the local machine.
  */
-void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian)
+void tep_set_local_bigendian(struct tep_handle *pevent, enum tep_endian endian)
 {
 	if (pevent)
 		pevent->host_bigendian = endian;
@@ -306,14 +306,14 @@ void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian)
  * tep_is_latency_format - get if the latency output format is configured
  * @pevent: a handle to the tep_handle
  *
- * This gets if the latency output format is configured
- * If @pevent is NULL, 0 is returned.
+ * This returns true if the latency output format is configured
+ * If @pevent is NULL, false is returned.
  */
-int tep_is_latency_format(struct tep_handle *pevent)
+bool tep_is_latency_format(struct tep_handle *pevent)
 {
 	if (pevent)
-		return pevent->latency_format;
-	return 0;
+		return (pevent->latency_format);
+	return false;
 }
 
 /**
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index e53c566be55d..f309b6d7e08a 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -199,23 +199,23 @@ static const char *find_cmdline(struct tep_handle *pevent, int pid)
 }
 
 /**
- * tep_pid_is_registered - return if a pid has a cmdline registered
+ * tep_is_pid_registered - return if a pid has a cmdline registered
  * @pevent: handle for the pevent
  * @pid: The pid to check if it has a cmdline registered with.
  *
- * Returns 1 if the pid has a cmdline mapped to it
- * 0 otherwise.
+ * Returns true if the pid has a cmdline mapped to it
+ * false otherwise.
  */
-int tep_pid_is_registered(struct tep_handle *pevent, int pid)
+bool tep_is_pid_registered(struct tep_handle *pevent, int pid)
 {
 	const struct tep_cmdline *comm;
 	struct tep_cmdline key;
 
 	if (!pid)
-		return 1;
+		return true;
 
 	if (!pevent->cmdlines && cmdline_init(pevent))
-		return 0;
+		return false;
 
 	key.pid = pid;
 
@@ -223,8 +223,8 @@ int tep_pid_is_registered(struct tep_handle *pevent, int pid)
 		       sizeof(*pevent->cmdlines), cmdline_cmp);
 
 	if (comm)
-		return 1;
-	return 0;
+		return true;
+	return false;
 }
 
 /*
@@ -5171,7 +5171,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_e
 }
 
 /**
- * tep_data_lat_fmt - parse the data for the latency format
+ * tep_data_latency_format - parse the data for the latency format
  * @pevent: a handle to the pevent
  * @s: the trace_seq to write to
  * @record: the record to read from
@@ -5180,8 +5180,8 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_e
  * need rescheduling, in hard/soft interrupt, preempt count
  * and lock depth) and places it into the trace_seq.
  */
-void tep_data_lat_fmt(struct tep_handle *pevent,
-		      struct trace_seq *s, struct tep_record *record)
+void tep_data_latency_format(struct tep_handle *pevent,
+			     struct trace_seq *s, struct tep_record *record)
 {
 	static int check_lock_depth = 1;
 	static int check_migrate_disable = 1;
@@ -5530,7 +5530,7 @@ void tep_print_event_time(struct tep_handle *pevent, struct trace_seq *s,
 	}
 
 	if (pevent->latency_format) {
-		tep_data_lat_fmt(pevent, s, record);
+		tep_data_latency_format(pevent, s, record);
 	}
 
 	if (use_usec_format) {
@@ -6760,7 +6760,7 @@ struct tep_handle *tep_alloc(void)
 
 	if (pevent) {
 		pevent->ref_count = 1;
-		pevent->host_bigendian = tep_host_bigendian();
+		pevent->host_bigendian = tep_is_bigendian();
 	}
 
 	return pevent;
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 73221a717fcc..790e9b804e7a 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -412,7 +412,7 @@ void tep_set_flag(struct tep_handle *tep, int flag);
 void tep_clear_flag(struct tep_handle *tep, enum tep_flag flag);
 bool tep_test_flag(struct tep_handle *tep, enum tep_flag flags);
 
-static inline int tep_host_bigendian(void)
+static inline int tep_is_bigendian(void)
 {
 	unsigned char str[] = { 0x1, 0x2, 0x3, 0x4 };
 	unsigned int val;
@@ -440,7 +440,7 @@ int tep_register_function(struct tep_handle *pevent, char *name,
 			  unsigned long long addr, char *mod);
 int tep_register_print_string(struct tep_handle *pevent, const char *fmt,
 			      unsigned long long addr);
-int tep_pid_is_registered(struct tep_handle *pevent, int pid);
+bool tep_is_pid_registered(struct tep_handle *pevent, int pid);
 
 void tep_print_event_task(struct tep_handle *pevent, struct trace_seq *s,
 			  struct tep_event *event,
@@ -526,8 +526,8 @@ tep_find_event_by_name(struct tep_handle *pevent, const char *sys, const char *n
 struct tep_event *
 tep_find_event_by_record(struct tep_handle *pevent, struct tep_record *record);
 
-void tep_data_lat_fmt(struct tep_handle *pevent,
-		      struct trace_seq *s, struct tep_record *record);
+void tep_data_latency_format(struct tep_handle *pevent,
+			     struct trace_seq *s, struct tep_record *record);
 int tep_data_type(struct tep_handle *pevent, struct tep_record *rec);
 int tep_data_pid(struct tep_handle *pevent, struct tep_record *rec);
 int tep_data_preempt_count(struct tep_handle *pevent, struct tep_record *rec);
@@ -561,11 +561,11 @@ int tep_get_long_size(struct tep_handle *pevent);
 void tep_set_long_size(struct tep_handle *pevent, int long_size);
 int tep_get_page_size(struct tep_handle *pevent);
 void tep_set_page_size(struct tep_handle *pevent, int _page_size);
-int tep_file_bigendian(struct tep_handle *pevent);
+bool tep_is_file_bigendian(struct tep_handle *pevent);
 void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian);
-int tep_is_host_bigendian(struct tep_handle *pevent);
-void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian);
-int tep_is_latency_format(struct tep_handle *pevent);
+bool tep_is_local_bigendian(struct tep_handle *pevent);
+void tep_set_local_bigendian(struct tep_handle *pevent, enum tep_endian endian);
+bool tep_is_latency_format(struct tep_handle *pevent);
 void tep_set_latency_format(struct tep_handle *pevent, int lat);
 int tep_get_header_page_size(struct tep_handle *pevent);
 int tep_get_header_timestamp_size(struct tep_handle *tep);
diff --git a/tools/lib/traceevent/plugin_kvm.c b/tools/lib/traceevent/plugin_kvm.c
index 64b9c25a1fd3..688e5d97d7a7 100644
--- a/tools/lib/traceevent/plugin_kvm.c
+++ b/tools/lib/traceevent/plugin_kvm.c
@@ -389,8 +389,8 @@ static int kvm_mmu_print_role(struct trace_seq *s, struct tep_record *record,
 	 * We can only use the structure if file is of the same
 	 * endianness.
 	 */
-	if (tep_file_bigendian(event->pevent) ==
-	    tep_is_host_bigendian(event->pevent)) {
+	if (tep_is_file_bigendian(event->pevent) ==
+	    tep_is_local_bigendian(event->pevent)) {
 
 		trace_seq_printf(s, "%u q%u%s %s%s %spae %snxe %swp%s%s%s",
 				 role.level,
diff --git a/tools/perf/util/trace-event-read.c b/tools/perf/util/trace-event-read.c
index efe2f58cff4e..48d53d8e3e16 100644
--- a/tools/perf/util/trace-event-read.c
+++ b/tools/perf/util/trace-event-read.c
@@ -442,7 +442,7 @@ ssize_t trace_report(int fd, struct trace_event *tevent, bool __repipe)
 
 	tep_set_flag(pevent, TEP_NSEC_OUTPUT);
 	tep_set_file_bigendian(pevent, file_bigendian);
-	tep_set_host_bigendian(pevent, host_bigendian);
+	tep_set_local_bigendian(pevent, host_bigendian);
 
 	if (do_read(buf, 1) < 0)
 		goto out;
diff --git a/tools/perf/util/trace-event.c b/tools/perf/util/trace-event.c
index cbe0dd758e3a..01b9d89bf5bf 100644
--- a/tools/perf/util/trace-event.c
+++ b/tools/perf/util/trace-event.c
@@ -40,7 +40,7 @@ int trace_event__init(struct trace_event *t)
 
 static int trace_event__init2(void)
 {
-	int be = tep_host_bigendian();
+	int be = tep_is_bigendian();
 	struct tep_handle *pevent;
 
 	if (trace_event__init(&tevent))
@@ -49,7 +49,7 @@ static int trace_event__init2(void)
 	pevent = tevent.pevent;
 	tep_set_flag(pevent, TEP_NSEC_OUTPUT);
 	tep_set_file_bigendian(pevent, be);
-	tep_set_host_bigendian(pevent, be);
+	tep_set_local_bigendian(pevent, be);
 	tevent_initialized = true;
 	return 0;
 }
-- 
2.20.1


^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH v2 2/5] tools/lib/traceevent: Rename input arguments of libtraceevent APIs from pevent to tep
  2019-03-27 14:19 [PATCH v2 0/5] Cleanup traceevent API and make it more consistent Tzvetomir Stoyanov
  2019-03-27 14:19 ` [PATCH v2 1/5] tools/perf,tools/lib/traceevent: Make traceevent APIs " Tzvetomir Stoyanov
@ 2019-03-27 14:19 ` Tzvetomir Stoyanov
  2019-03-27 15:06   ` Steven Rostedt
  2019-03-27 14:19 ` [PATCH v2 3/5] tools/perf,tools/lib/traceevent: Rename "pevent" member of struct tep_event to "tep" Tzvetomir Stoyanov
                   ` (2 subsequent siblings)
  4 siblings, 1 reply; 55+ messages in thread
From: Tzvetomir Stoyanov @ 2019-03-27 14:19 UTC (permalink / raw)
  To: rostedt; +Cc: linux-trace-devel, linux-kernel

This patch renames "struct tep_handle *pevent" input arguments of libtraceevent
APIs to "struct tep_handle *tep". This makes the API consistent with the chosen
naming convention: tep (trace event parser), instead of the old pevent.

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
---
 tools/lib/traceevent/event-parse-api.c     | 132 +++---
 tools/lib/traceevent/event-parse-local.h   |   6 +-
 tools/lib/traceevent/event-parse.c         | 473 ++++++++++-----------
 tools/lib/traceevent/event-parse.h         | 120 +++---
 tools/lib/traceevent/event-plugin.c        |   8 +-
 tools/lib/traceevent/parse-filter.c        |   8 +-
 tools/lib/traceevent/plugin_cfg80211.c     |   8 +-
 tools/lib/traceevent/plugin_function.c     |   8 +-
 tools/lib/traceevent/plugin_hrtimer.c      |  12 +-
 tools/lib/traceevent/plugin_jbd2.c         |  12 +-
 tools/lib/traceevent/plugin_kmem.c         |  28 +-
 tools/lib/traceevent/plugin_kvm.c          |  44 +-
 tools/lib/traceevent/plugin_mac80211.c     |   8 +-
 tools/lib/traceevent/plugin_sched_switch.c |  16 +-
 tools/lib/traceevent/plugin_scsi.c         |   8 +-
 tools/lib/traceevent/plugin_xen.c          |   8 +-
 16 files changed, 449 insertions(+), 450 deletions(-)

diff --git a/tools/lib/traceevent/event-parse-api.c b/tools/lib/traceevent/event-parse-api.c
index 1597e498607c..a93935f1e169 100644
--- a/tools/lib/traceevent/event-parse-api.c
+++ b/tools/lib/traceevent/event-parse-api.c
@@ -92,11 +92,11 @@ bool tep_test_flag(struct tep_handle *tep, enum tep_flag flag)
 	return false;
 }
 
-unsigned short tep_data2host2(struct tep_handle *pevent, unsigned short data)
+unsigned short tep_data2host2(struct tep_handle *tep, unsigned short data)
 {
 	unsigned short swap;
 
-	if (!pevent || pevent->host_bigendian == pevent->file_bigendian)
+	if (!tep || tep->host_bigendian == tep->file_bigendian)
 		return data;
 
 	swap = ((data & 0xffULL) << 8) |
@@ -105,11 +105,11 @@ unsigned short tep_data2host2(struct tep_handle *pevent, unsigned short data)
 	return swap;
 }
 
-unsigned int tep_data2host4(struct tep_handle *pevent, unsigned int data)
+unsigned int tep_data2host4(struct tep_handle *tep, unsigned int data)
 {
 	unsigned int swap;
 
-	if (!pevent || pevent->host_bigendian == pevent->file_bigendian)
+	if (!tep || tep->host_bigendian == tep->file_bigendian)
 		return data;
 
 	swap = ((data & 0xffULL) << 24) |
@@ -121,11 +121,11 @@ unsigned int tep_data2host4(struct tep_handle *pevent, unsigned int data)
 }
 
 unsigned long long
-tep_data2host8(struct tep_handle *pevent, unsigned long long data)
+tep_data2host8(struct tep_handle *tep, unsigned long long data)
 {
 	unsigned long long swap;
 
-	if (!pevent || pevent->host_bigendian == pevent->file_bigendian)
+	if (!tep || tep->host_bigendian == tep->file_bigendian)
 		return data;
 
 	swap = ((data & 0xffULL) << 56) |
@@ -142,15 +142,15 @@ tep_data2host8(struct tep_handle *pevent, unsigned long long data)
 
 /**
  * tep_get_header_page_size - get size of the header page
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This returns size of the header page
- * If @pevent is NULL, 0 is returned.
+ * If @tep is NULL, 0 is returned.
  */
-int tep_get_header_page_size(struct tep_handle *pevent)
+int tep_get_header_page_size(struct tep_handle *tep)
 {
-	if (pevent)
-		return pevent->header_page_size_size;
+	if (tep)
+		return tep->header_page_size_size;
 	return 0;
 }
 
@@ -170,163 +170,163 @@ int tep_get_header_timestamp_size(struct tep_handle *tep)
 
 /**
  * tep_get_cpus - get the number of CPUs
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This returns the number of CPUs
- * If @pevent is NULL, 0 is returned.
+ * If @tep is NULL, 0 is returned.
  */
-int tep_get_cpus(struct tep_handle *pevent)
+int tep_get_cpus(struct tep_handle *tep)
 {
-	if (pevent)
-		return pevent->cpus;
+	if (tep)
+		return tep->cpus;
 	return 0;
 }
 
 /**
  * tep_set_cpus - set the number of CPUs
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This sets the number of CPUs
  */
-void tep_set_cpus(struct tep_handle *pevent, int cpus)
+void tep_set_cpus(struct tep_handle *tep, int cpus)
 {
-	if (pevent)
-		pevent->cpus = cpus;
+	if (tep)
+		tep->cpus = cpus;
 }
 
 /**
  * tep_get_long_size - get the size of a long integer on the traced machine
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This returns the size of a long integer on the traced machine
- * If @pevent is NULL, 0 is returned.
+ * If @tep is NULL, 0 is returned.
  */
-int tep_get_long_size(struct tep_handle *pevent)
+int tep_get_long_size(struct tep_handle *tep)
 {
-	if (pevent)
-		return pevent->long_size;
+	if (tep)
+		return tep->long_size;
 	return 0;
 }
 
 /**
  * tep_set_long_size - set the size of a long integer on the traced machine
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  * @size: size, in bytes, of a long integer
  *
  * This sets the size of a long integer on the traced machine
  */
-void tep_set_long_size(struct tep_handle *pevent, int long_size)
+void tep_set_long_size(struct tep_handle *tep, int long_size)
 {
-	if (pevent)
-		pevent->long_size = long_size;
+	if (tep)
+		tep->long_size = long_size;
 }
 
 /**
  * tep_get_page_size - get the size of a memory page on the traced machine
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This returns the size of a memory page on the traced machine
- * If @pevent is NULL, 0 is returned.
+ * If @tep is NULL, 0 is returned.
  */
-int tep_get_page_size(struct tep_handle *pevent)
+int tep_get_page_size(struct tep_handle *tep)
 {
-	if (pevent)
-		return pevent->page_size;
+	if (tep)
+		return tep->page_size;
 	return 0;
 }
 
 /**
  * tep_set_page_size - set the size of a memory page on the traced machine
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  * @_page_size: size of a memory page, in bytes
  *
  * This sets the size of a memory page on the traced machine
  */
-void tep_set_page_size(struct tep_handle *pevent, int _page_size)
+void tep_set_page_size(struct tep_handle *tep, int _page_size)
 {
-	if (pevent)
-		pevent->page_size = _page_size;
+	if (tep)
+		tep->page_size = _page_size;
 }
 
 /**
  * tep_is_file_bigendian - return the endian of the file
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This returns true if the file is in big endian order
- * If @pevent is NULL, false is returned.
+ * If @tep is NULL, false is returned.
  */
-bool tep_is_file_bigendian(struct tep_handle *pevent)
+bool tep_is_file_bigendian(struct tep_handle *tep)
 {
-	if (pevent)
-		return (pevent->file_bigendian == TEP_BIG_ENDIAN);
+	if (tep)
+		return (tep->file_bigendian == TEP_BIG_ENDIAN);
 	return false;
 }
 
 /**
  * tep_set_file_bigendian - set if the file is in big endian order
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  * @endian: non zero, if the file is in big endian order
  *
  * This sets if the file is in big endian order
  */
-void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian)
+void tep_set_file_bigendian(struct tep_handle *tep, enum tep_endian endian)
 {
-	if (pevent)
-		pevent->file_bigendian = endian;
+	if (tep)
+		tep->file_bigendian = endian;
 }
 
 /**
  * tep_is_local_bigendian - return the endian of the saved local machine
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
- * This returns true if the saved local machine in @pevent is big endian.
- * If @pevent is NULL, false is returned.
+ * This returns true if the saved local machine in @tep is big endian.
+ * If @tep is NULL, false is returned.
  */
-bool tep_is_local_bigendian(struct tep_handle *pevent)
+bool tep_is_local_bigendian(struct tep_handle *tep)
 {
-	if (pevent)
-		return (pevent->host_bigendian == TEP_BIG_ENDIAN);
+	if (tep)
+		return (tep->host_bigendian == TEP_BIG_ENDIAN);
 	return 0;
 }
 
 /**
  * tep_set_local_bigendian - set the stored local machine endian order
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  * @endian: non zero, if the local host has big endian order
  *
  * This sets the endian order for the local machine.
  */
-void tep_set_local_bigendian(struct tep_handle *pevent, enum tep_endian endian)
+void tep_set_local_bigendian(struct tep_handle *tep, enum tep_endian endian)
 {
-	if (pevent)
-		pevent->host_bigendian = endian;
+	if (tep)
+		tep->host_bigendian = endian;
 }
 
 /**
  * tep_is_latency_format - get if the latency output format is configured
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This returns true if the latency output format is configured
- * If @pevent is NULL, false is returned.
+ * If @tep is NULL, false is returned.
  */
-bool tep_is_latency_format(struct tep_handle *pevent)
+bool tep_is_latency_format(struct tep_handle *tep)
 {
-	if (pevent)
-		return (pevent->latency_format);
+	if (tep)
+		return (tep->latency_format);
 	return false;
 }
 
 /**
  * tep_set_latency_format - set the latency output format
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  * @lat: non zero for latency output format
  *
  * This sets the latency output format
   */
-void tep_set_latency_format(struct tep_handle *pevent, int lat)
+void tep_set_latency_format(struct tep_handle *tep, int lat)
 {
-	if (pevent)
-		pevent->latency_format = lat;
+	if (tep)
+		tep->latency_format = lat;
 }
 
 /**
diff --git a/tools/lib/traceevent/event-parse-local.h b/tools/lib/traceevent/event-parse-local.h
index 35833ee32d6c..09aa142f7fdd 100644
--- a/tools/lib/traceevent/event-parse-local.h
+++ b/tools/lib/traceevent/event-parse-local.h
@@ -92,8 +92,8 @@ struct tep_handle {
 void tep_free_event(struct tep_event *event);
 void tep_free_format_field(struct tep_format_field *field);
 
-unsigned short tep_data2host2(struct tep_handle *pevent, unsigned short data);
-unsigned int tep_data2host4(struct tep_handle *pevent, unsigned int data);
-unsigned long long tep_data2host8(struct tep_handle *pevent, unsigned long long data);
+unsigned short tep_data2host2(struct tep_handle *tep, unsigned short data);
+unsigned int tep_data2host4(struct tep_handle *tep, unsigned int data);
+unsigned long long tep_data2host8(struct tep_handle *tep, unsigned long long data);
 
 #endif /* _PARSE_EVENTS_INT_H */
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index f309b6d7e08a..f04cc0b68450 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -200,13 +200,13 @@ static const char *find_cmdline(struct tep_handle *pevent, int pid)
 
 /**
  * tep_is_pid_registered - return if a pid has a cmdline registered
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @pid: The pid to check if it has a cmdline registered with.
  *
  * Returns true if the pid has a cmdline mapped to it
  * false otherwise.
  */
-bool tep_is_pid_registered(struct tep_handle *pevent, int pid)
+bool tep_is_pid_registered(struct tep_handle *tep, int pid)
 {
 	const struct tep_cmdline *comm;
 	struct tep_cmdline key;
@@ -214,13 +214,13 @@ bool tep_is_pid_registered(struct tep_handle *pevent, int pid)
 	if (!pid)
 		return true;
 
-	if (!pevent->cmdlines && cmdline_init(pevent))
+	if (!tep->cmdlines && cmdline_init(tep))
 		return false;
 
 	key.pid = pid;
 
-	comm = bsearch(&key, pevent->cmdlines, pevent->cmdline_count,
-		       sizeof(*pevent->cmdlines), cmdline_cmp);
+	comm = bsearch(&key, tep->cmdlines, tep->cmdline_count,
+		       sizeof(*tep->cmdlines), cmdline_cmp);
 
 	if (comm)
 		return true;
@@ -288,13 +288,13 @@ static int add_new_comm(struct tep_handle *pevent,
 	return 0;
 }
 
-static int _tep_register_comm(struct tep_handle *pevent,
+static int _tep_register_comm(struct tep_handle *tep,
 			      const char *comm, int pid, bool override)
 {
 	struct cmdline_list *item;
 
-	if (pevent->cmdlines)
-		return add_new_comm(pevent, comm, pid, override);
+	if (tep->cmdlines)
+		return add_new_comm(tep, comm, pid, override);
 
 	item = malloc(sizeof(*item));
 	if (!item)
@@ -309,17 +309,17 @@ static int _tep_register_comm(struct tep_handle *pevent,
 		return -1;
 	}
 	item->pid = pid;
-	item->next = pevent->cmdlist;
+	item->next = tep->cmdlist;
 
-	pevent->cmdlist = item;
-	pevent->cmdline_count++;
+	tep->cmdlist = item;
+	tep->cmdline_count++;
 
 	return 0;
 }
 
 /**
  * tep_register_comm - register a pid / comm mapping
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @comm: the command line to register
  * @pid: the pid to map the command line to
  *
@@ -327,14 +327,14 @@ static int _tep_register_comm(struct tep_handle *pevent,
  * a given pid. The comm is duplicated. If a command with the same pid
  * already exist, -1 is returned and errno is set to EEXIST
  */
-int tep_register_comm(struct tep_handle *pevent, const char *comm, int pid)
+int tep_register_comm(struct tep_handle *tep, const char *comm, int pid)
 {
-	return _tep_register_comm(pevent, comm, pid, false);
+	return _tep_register_comm(tep, comm, pid, false);
 }
 
 /**
  * tep_override_comm - register a pid / comm mapping
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @comm: the command line to register
  * @pid: the pid to map the command line to
  *
@@ -342,19 +342,19 @@ int tep_register_comm(struct tep_handle *pevent, const char *comm, int pid)
  * a given pid. The comm is duplicated. If a command with the same pid
  * already exist, the command string is udapted with the new one
  */
-int tep_override_comm(struct tep_handle *pevent, const char *comm, int pid)
+int tep_override_comm(struct tep_handle *tep, const char *comm, int pid)
 {
-	if (!pevent->cmdlines && cmdline_init(pevent)) {
+	if (!tep->cmdlines && cmdline_init(tep)) {
 		errno = ENOMEM;
 		return -1;
 	}
-	return _tep_register_comm(pevent, comm, pid, true);
+	return _tep_register_comm(tep, comm, pid, true);
 }
 
-int tep_register_trace_clock(struct tep_handle *pevent, const char *trace_clock)
+int tep_register_trace_clock(struct tep_handle *tep, const char *trace_clock)
 {
-	pevent->trace_clock = strdup(trace_clock);
-	if (!pevent->trace_clock) {
+	tep->trace_clock = strdup(trace_clock);
+	if (!tep->trace_clock) {
 		errno = ENOMEM;
 		return -1;
 	}
@@ -472,15 +472,14 @@ struct func_resolver {
 
 /**
  * tep_set_function_resolver - set an alternative function resolver
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @resolver: function to be used
  * @priv: resolver function private state.
  *
  * Some tools may have already a way to resolve kernel functions, allow them to
- * keep using it instead of duplicating all the entries inside
- * pevent->funclist.
+ * keep using it instead of duplicating all the entries inside tep->funclist.
  */
-int tep_set_function_resolver(struct tep_handle *pevent,
+int tep_set_function_resolver(struct tep_handle *tep,
 			      tep_func_resolver_t *func, void *priv)
 {
 	struct func_resolver *resolver = malloc(sizeof(*resolver));
@@ -491,23 +490,23 @@ int tep_set_function_resolver(struct tep_handle *pevent,
 	resolver->func = func;
 	resolver->priv = priv;
 
-	free(pevent->func_resolver);
-	pevent->func_resolver = resolver;
+	free(tep->func_resolver);
+	tep->func_resolver = resolver;
 
 	return 0;
 }
 
 /**
  * tep_reset_function_resolver - reset alternative function resolver
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  *
  * Stop using whatever alternative resolver was set, use the default
  * one instead.
  */
-void tep_reset_function_resolver(struct tep_handle *pevent)
+void tep_reset_function_resolver(struct tep_handle *tep)
 {
-	free(pevent->func_resolver);
-	pevent->func_resolver = NULL;
+	free(tep->func_resolver);
+	tep->func_resolver = NULL;
 }
 
 static struct func_map *
@@ -531,18 +530,18 @@ find_func(struct tep_handle *pevent, unsigned long long addr)
 
 /**
  * tep_find_function - find a function by a given address
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @addr: the address to find the function with
  *
  * Returns a pointer to the function stored that has the given
  * address. Note, the address does not have to be exact, it
  * will select the function that would contain the address.
  */
-const char *tep_find_function(struct tep_handle *pevent, unsigned long long addr)
+const char *tep_find_function(struct tep_handle *tep, unsigned long long addr)
 {
 	struct func_map *map;
 
-	map = find_func(pevent, addr);
+	map = find_func(tep, addr);
 	if (!map)
 		return NULL;
 
@@ -551,7 +550,7 @@ const char *tep_find_function(struct tep_handle *pevent, unsigned long long addr
 
 /**
  * tep_find_function_address - find a function address by a given address
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @addr: the address to find the function with
  *
  * Returns the address the function starts at. This can be used in
@@ -559,11 +558,11 @@ const char *tep_find_function(struct tep_handle *pevent, unsigned long long addr
  * name and the function offset.
  */
 unsigned long long
-tep_find_function_address(struct tep_handle *pevent, unsigned long long addr)
+tep_find_function_address(struct tep_handle *tep, unsigned long long addr)
 {
 	struct func_map *map;
 
-	map = find_func(pevent, addr);
+	map = find_func(tep, addr);
 	if (!map)
 		return 0;
 
@@ -572,7 +571,7 @@ tep_find_function_address(struct tep_handle *pevent, unsigned long long addr)
 
 /**
  * tep_register_function - register a function with a given address
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @function: the function name to register
  * @addr: the address the function starts at
  * @mod: the kernel module the function may be in (NULL for none)
@@ -580,7 +579,7 @@ tep_find_function_address(struct tep_handle *pevent, unsigned long long addr)
  * This registers a function name with an address and module.
  * The @func passed in is duplicated.
  */
-int tep_register_function(struct tep_handle *pevent, char *func,
+int tep_register_function(struct tep_handle *tep, char *func,
 			  unsigned long long addr, char *mod)
 {
 	struct func_list *item = malloc(sizeof(*item));
@@ -588,7 +587,7 @@ int tep_register_function(struct tep_handle *pevent, char *func,
 	if (!item)
 		return -1;
 
-	item->next = pevent->funclist;
+	item->next = tep->funclist;
 	item->func = strdup(func);
 	if (!item->func)
 		goto out_free;
@@ -601,8 +600,8 @@ int tep_register_function(struct tep_handle *pevent, char *func,
 		item->mod = NULL;
 	item->addr = addr;
 
-	pevent->funclist = item;
-	pevent->func_count++;
+	tep->funclist = item;
+	tep->func_count++;
 
 	return 0;
 
@@ -617,23 +616,23 @@ int tep_register_function(struct tep_handle *pevent, char *func,
 
 /**
  * tep_print_funcs - print out the stored functions
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  *
  * This prints out the stored functions.
  */
-void tep_print_funcs(struct tep_handle *pevent)
+void tep_print_funcs(struct tep_handle *tep)
 {
 	int i;
 
-	if (!pevent->func_map)
-		func_map_init(pevent);
+	if (!tep->func_map)
+		func_map_init(tep);
 
-	for (i = 0; i < (int)pevent->func_count; i++) {
+	for (i = 0; i < (int)tep->func_count; i++) {
 		printf("%016llx %s",
-		       pevent->func_map[i].addr,
-		       pevent->func_map[i].func);
-		if (pevent->func_map[i].mod)
-			printf(" [%s]\n", pevent->func_map[i].mod);
+		       tep->func_map[i].addr,
+		       tep->func_map[i].func);
+		if (tep->func_map[i].mod)
+			printf(" [%s]\n", tep->func_map[i].mod);
 		else
 			printf("\n");
 	}
@@ -713,14 +712,14 @@ find_printk(struct tep_handle *pevent, unsigned long long addr)
 
 /**
  * tep_register_print_string - register a string by its address
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @fmt: the string format to register
  * @addr: the address the string was located at
  *
  * This registers a string by the address it was stored in the kernel.
  * The @fmt passed in is duplicated.
  */
-int tep_register_print_string(struct tep_handle *pevent, const char *fmt,
+int tep_register_print_string(struct tep_handle *tep, const char *fmt,
 			      unsigned long long addr)
 {
 	struct printk_list *item = malloc(sizeof(*item));
@@ -729,7 +728,7 @@ int tep_register_print_string(struct tep_handle *pevent, const char *fmt,
 	if (!item)
 		return -1;
 
-	item->next = pevent->printklist;
+	item->next = tep->printklist;
 	item->addr = addr;
 
 	/* Strip off quotes and '\n' from the end */
@@ -747,8 +746,8 @@ int tep_register_print_string(struct tep_handle *pevent, const char *fmt,
 	if (strcmp(p, "\\n") == 0)
 		*p = 0;
 
-	pevent->printklist = item;
-	pevent->printk_count++;
+	tep->printklist = item;
+	tep->printk_count++;
 
 	return 0;
 
@@ -760,21 +759,21 @@ int tep_register_print_string(struct tep_handle *pevent, const char *fmt,
 
 /**
  * tep_print_printk - print out the stored strings
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  *
  * This prints the string formats that were stored.
  */
-void tep_print_printk(struct tep_handle *pevent)
+void tep_print_printk(struct tep_handle *tep)
 {
 	int i;
 
-	if (!pevent->printk_map)
-		printk_map_init(pevent);
+	if (!tep->printk_map)
+		printk_map_init(tep);
 
-	for (i = 0; i < (int)pevent->printk_count; i++) {
+	for (i = 0; i < (int)tep->printk_count; i++) {
 		printf("%016llx %s\n",
-		       pevent->printk_map[i].addr,
-		       pevent->printk_map[i].printk);
+		       tep->printk_map[i].addr,
+		       tep->printk_map[i].printk);
 	}
 }
 
@@ -1184,7 +1183,7 @@ static enum tep_event_type read_token(char **tok)
 }
 
 /**
- * tep_read_token - access to utilities to use the pevent parser
+ * tep_read_token - access to utilities to use the tep parser
  * @tok: The token to return
  *
  * This will parse tokens from the string given by
@@ -3357,14 +3356,14 @@ tep_find_any_field(struct tep_event *event, const char *name)
 
 /**
  * tep_read_number - read a number from data
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @ptr: the raw data
  * @size: the size of the data that holds the number
  *
  * Returns the number (converted to host) from the
  * raw data.
  */
-unsigned long long tep_read_number(struct tep_handle *pevent,
+unsigned long long tep_read_number(struct tep_handle *tep,
 				   const void *ptr, int size)
 {
 	unsigned long long val;
@@ -3373,12 +3372,12 @@ unsigned long long tep_read_number(struct tep_handle *pevent,
 	case 1:
 		return *(unsigned char *)ptr;
 	case 2:
-		return tep_data2host2(pevent, *(unsigned short *)ptr);
+		return tep_data2host2(tep, *(unsigned short *)ptr);
 	case 4:
-		return tep_data2host4(pevent, *(unsigned int *)ptr);
+		return tep_data2host4(tep, *(unsigned int *)ptr);
 	case 8:
 		memcpy(&val, (ptr), sizeof(unsigned long long));
-		return tep_data2host8(pevent, val);
+		return tep_data2host8(tep, val);
 	default:
 		/* BUG! */
 		return 0;
@@ -3499,28 +3498,28 @@ static int events_id_cmp(const void *a, const void *b);
 
 /**
  * tep_find_event - find an event by given id
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @id: the id of the event
  *
  * Returns an event that has a given @id.
  */
-struct tep_event *tep_find_event(struct tep_handle *pevent, int id)
+struct tep_event *tep_find_event(struct tep_handle *tep, int id)
 {
 	struct tep_event **eventptr;
 	struct tep_event key;
 	struct tep_event *pkey = &key;
 
 	/* Check cache first */
-	if (pevent->last_event && pevent->last_event->id == id)
-		return pevent->last_event;
+	if (tep->last_event && tep->last_event->id == id)
+		return tep->last_event;
 
 	key.id = id;
 
-	eventptr = bsearch(&pkey, pevent->events, pevent->nr_events,
-			   sizeof(*pevent->events), events_id_cmp);
+	eventptr = bsearch(&pkey, tep->events, tep->nr_events,
+			   sizeof(*tep->events), events_id_cmp);
 
 	if (eventptr) {
-		pevent->last_event = *eventptr;
+		tep->last_event = *eventptr;
 		return *eventptr;
 	}
 
@@ -3529,7 +3528,7 @@ struct tep_event *tep_find_event(struct tep_handle *pevent, int id)
 
 /**
  * tep_find_event_by_name - find an event by given name
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @sys: the system name to search for
  * @name: the name of the event to search for
  *
@@ -3537,19 +3536,19 @@ struct tep_event *tep_find_event(struct tep_handle *pevent, int id)
  * @sys. If @sys is NULL the first event with @name is returned.
  */
 struct tep_event *
-tep_find_event_by_name(struct tep_handle *pevent,
+tep_find_event_by_name(struct tep_handle *tep,
 		       const char *sys, const char *name)
 {
 	struct tep_event *event = NULL;
 	int i;
 
-	if (pevent->last_event &&
-	    strcmp(pevent->last_event->name, name) == 0 &&
-	    (!sys || strcmp(pevent->last_event->system, sys) == 0))
-		return pevent->last_event;
+	if (tep->last_event &&
+	    strcmp(tep->last_event->name, name) == 0 &&
+	    (!sys || strcmp(tep->last_event->system, sys) == 0))
+		return tep->last_event;
 
-	for (i = 0; i < pevent->nr_events; i++) {
-		event = pevent->events[i];
+	for (i = 0; i < tep->nr_events; i++) {
+		event = tep->events[i];
 		if (strcmp(event->name, name) == 0) {
 			if (!sys)
 				break;
@@ -3557,10 +3556,10 @@ tep_find_event_by_name(struct tep_handle *pevent,
 				break;
 		}
 	}
-	if (i == pevent->nr_events)
+	if (i == tep->nr_events)
 		event = NULL;
 
-	pevent->last_event = event;
+	tep->last_event = event;
 	return event;
 }
 
@@ -5172,7 +5171,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_e
 
 /**
  * tep_data_latency_format - parse the data for the latency format
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @s: the trace_seq to write to
  * @record: the record to read from
  *
@@ -5180,7 +5179,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_e
  * need rescheduling, in hard/soft interrupt, preempt count
  * and lock depth) and places it into the trace_seq.
  */
-void tep_data_latency_format(struct tep_handle *pevent,
+void tep_data_latency_format(struct tep_handle *tep,
 			     struct trace_seq *s, struct tep_record *record)
 {
 	static int check_lock_depth = 1;
@@ -5195,13 +5194,13 @@ void tep_data_latency_format(struct tep_handle *pevent,
 	int softirq;
 	void *data = record->data;
 
-	lat_flags = parse_common_flags(pevent, data);
-	pc = parse_common_pc(pevent, data);
+	lat_flags = parse_common_flags(tep, data);
+	pc = parse_common_pc(tep, data);
 	/* lock_depth may not always exist */
 	if (lock_depth_exists)
-		lock_depth = parse_common_lock_depth(pevent, data);
+		lock_depth = parse_common_lock_depth(tep, data);
 	else if (check_lock_depth) {
-		lock_depth = parse_common_lock_depth(pevent, data);
+		lock_depth = parse_common_lock_depth(tep, data);
 		if (lock_depth < 0)
 			check_lock_depth = 0;
 		else
@@ -5210,9 +5209,9 @@ void tep_data_latency_format(struct tep_handle *pevent,
 
 	/* migrate_disable may not always exist */
 	if (migrate_disable_exists)
-		migrate_disable = parse_common_migrate_disable(pevent, data);
+		migrate_disable = parse_common_migrate_disable(tep, data);
 	else if (check_migrate_disable) {
-		migrate_disable = parse_common_migrate_disable(pevent, data);
+		migrate_disable = parse_common_migrate_disable(tep, data);
 		if (migrate_disable < 0)
 			check_migrate_disable = 0;
 		else
@@ -5255,67 +5254,67 @@ void tep_data_latency_format(struct tep_handle *pevent,
 
 /**
  * tep_data_type - parse out the given event type
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @rec: the record to read from
  *
  * This returns the event id from the @rec.
  */
-int tep_data_type(struct tep_handle *pevent, struct tep_record *rec)
+int tep_data_type(struct tep_handle *tep, struct tep_record *rec)
 {
-	return trace_parse_common_type(pevent, rec->data);
+	return trace_parse_common_type(tep, rec->data);
 }
 
 /**
  * tep_data_pid - parse the PID from record
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @rec: the record to parse
  *
  * This returns the PID from a record.
  */
-int tep_data_pid(struct tep_handle *pevent, struct tep_record *rec)
+int tep_data_pid(struct tep_handle *tep, struct tep_record *rec)
 {
-	return parse_common_pid(pevent, rec->data);
+	return parse_common_pid(tep, rec->data);
 }
 
 /**
  * tep_data_preempt_count - parse the preempt count from the record
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @rec: the record to parse
  *
  * This returns the preempt count from a record.
  */
-int tep_data_preempt_count(struct tep_handle *pevent, struct tep_record *rec)
+int tep_data_preempt_count(struct tep_handle *tep, struct tep_record *rec)
 {
-	return parse_common_pc(pevent, rec->data);
+	return parse_common_pc(tep, rec->data);
 }
 
 /**
  * tep_data_flags - parse the latency flags from the record
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @rec: the record to parse
  *
  * This returns the latency flags from a record.
  *
  *  Use trace_flag_type enum for the flags (see event-parse.h).
  */
-int tep_data_flags(struct tep_handle *pevent, struct tep_record *rec)
+int tep_data_flags(struct tep_handle *tep, struct tep_record *rec)
 {
-	return parse_common_flags(pevent, rec->data);
+	return parse_common_flags(tep, rec->data);
 }
 
 /**
  * tep_data_comm_from_pid - return the command line from PID
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @pid: the PID of the task to search for
  *
  * This returns a pointer to the command line that has the given
  * @pid.
  */
-const char *tep_data_comm_from_pid(struct tep_handle *pevent, int pid)
+const char *tep_data_comm_from_pid(struct tep_handle *tep, int pid)
 {
 	const char *comm;
 
-	comm = find_cmdline(pevent, pid);
+	comm = find_cmdline(tep, pid);
 	return comm;
 }
 
@@ -5337,7 +5336,7 @@ pid_from_cmdlist(struct tep_handle *pevent, const char *comm, struct tep_cmdline
 
 /**
  * tep_data_pid_from_comm - return the pid from a given comm
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @comm: the cmdline to find the pid from
  * @next: the cmdline structure to find the next comm
  *
@@ -5348,7 +5347,7 @@ pid_from_cmdlist(struct tep_handle *pevent, const char *comm, struct tep_cmdline
  * next pid.
  * Also, it does a linear search, so it may be slow.
  */
-struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *pevent, const char *comm,
+struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *tep, const char *comm,
 					   struct tep_cmdline *next)
 {
 	struct tep_cmdline *cmdline;
@@ -5357,25 +5356,25 @@ struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *pevent, const char
 	 * If the cmdlines have not been converted yet, then use
 	 * the list.
 	 */
-	if (!pevent->cmdlines)
-		return pid_from_cmdlist(pevent, comm, next);
+	if (!tep->cmdlines)
+		return pid_from_cmdlist(tep, comm, next);
 
 	if (next) {
 		/*
 		 * The next pointer could have been still from
 		 * a previous call before cmdlines were created
 		 */
-		if (next < pevent->cmdlines ||
-		    next >= pevent->cmdlines + pevent->cmdline_count)
+		if (next < tep->cmdlines ||
+		    next >= tep->cmdlines + tep->cmdline_count)
 			next = NULL;
 		else
 			cmdline  = next++;
 	}
 
 	if (!next)
-		cmdline = pevent->cmdlines;
+		cmdline = tep->cmdlines;
 
-	while (cmdline < pevent->cmdlines + pevent->cmdline_count) {
+	while (cmdline < tep->cmdlines + tep->cmdline_count) {
 		if (strcmp(cmdline->comm, comm) == 0)
 			return cmdline;
 		cmdline++;
@@ -5385,12 +5384,13 @@ struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *pevent, const char
 
 /**
  * tep_cmdline_pid - return the pid associated to a given cmdline
+ * @tep: a handle to the trace event parser context
  * @cmdline: The cmdline structure to get the pid from
  *
  * Returns the pid for a give cmdline. If @cmdline is NULL, then
  * -1 is returned.
  */
-int tep_cmdline_pid(struct tep_handle *pevent, struct tep_cmdline *cmdline)
+int tep_cmdline_pid(struct tep_handle *tep, struct tep_cmdline *cmdline)
 {
 	struct cmdline_list *cmdlist = (struct cmdline_list *)cmdline;
 
@@ -5401,9 +5401,9 @@ int tep_cmdline_pid(struct tep_handle *pevent, struct tep_cmdline *cmdline)
 	 * If cmdlines have not been created yet, or cmdline is
 	 * not part of the array, then treat it as a cmdlist instead.
 	 */
-	if (!pevent->cmdlines ||
-	    cmdline < pevent->cmdlines ||
-	    cmdline >= pevent->cmdlines + pevent->cmdline_count)
+	if (!tep->cmdlines ||
+	    cmdline < tep->cmdlines ||
+	    cmdline >= tep->cmdlines + tep->cmdline_count)
 		return cmdlist->pid;
 
 	return cmdline->pid;
@@ -5453,14 +5453,14 @@ static bool is_timestamp_in_us(char *trace_clock, bool use_trace_clock)
 
 /**
  * tep_find_event_by_record - return the event from a given record
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @record: The record to get the event from
  *
  * Returns the associated event for a given record, or NULL if non is
  * is found.
  */
 struct tep_event *
-tep_find_event_by_record(struct tep_handle *pevent, struct tep_record *record)
+tep_find_event_by_record(struct tep_handle *tep, struct tep_record *record)
 {
 	int type;
 
@@ -5469,21 +5469,21 @@ tep_find_event_by_record(struct tep_handle *pevent, struct tep_record *record)
 		return NULL;
 	}
 
-	type = trace_parse_common_type(pevent, record->data);
+	type = trace_parse_common_type(tep, record->data);
 
-	return tep_find_event(pevent, type);
+	return tep_find_event(tep, type);
 }
 
 /**
  * tep_print_event_task - Write the event task comm, pid and CPU
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @s: the trace_seq to write to
  * @event: the handle to the record's event
  * @record: The record to get the event from
  *
  * Writes the tasks comm, pid and CPU to @s.
  */
-void tep_print_event_task(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event_task(struct tep_handle *tep, struct trace_seq *s,
 			  struct tep_event *event,
 			  struct tep_record *record)
 {
@@ -5491,27 +5491,26 @@ void tep_print_event_task(struct tep_handle *pevent, struct trace_seq *s,
 	const char *comm;
 	int pid;
 
-	pid = parse_common_pid(pevent, data);
-	comm = find_cmdline(pevent, pid);
+	pid = parse_common_pid(tep, data);
+	comm = find_cmdline(tep, pid);
 
-	if (pevent->latency_format) {
-		trace_seq_printf(s, "%8.8s-%-5d %3d",
-		       comm, pid, record->cpu);
-	} else
+	if (tep->latency_format)
+		trace_seq_printf(s, "%8.8s-%-5d %3d", comm, pid, record->cpu);
+	else
 		trace_seq_printf(s, "%16s-%-5d [%03d]", comm, pid, record->cpu);
 }
 
 /**
  * tep_print_event_time - Write the event timestamp
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @s: the trace_seq to write to
  * @event: the handle to the record's event
  * @record: The record to get the event from
- * @use_trace_clock: Set to parse according to the @pevent->trace_clock
+ * @use_trace_clock: Set to parse according to the @tep->trace_clock
  *
  * Writes the timestamp of the record into @s.
  */
-void tep_print_event_time(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event_time(struct tep_handle *tep, struct trace_seq *s,
 			  struct tep_event *event,
 			  struct tep_record *record,
 			  bool use_trace_clock)
@@ -5522,19 +5521,18 @@ void tep_print_event_time(struct tep_handle *pevent, struct trace_seq *s,
 	int p;
 	bool use_usec_format;
 
-	use_usec_format = is_timestamp_in_us(pevent->trace_clock,
-							use_trace_clock);
+	use_usec_format = is_timestamp_in_us(tep->trace_clock, use_trace_clock);
 	if (use_usec_format) {
 		secs = record->ts / NSEC_PER_SEC;
 		nsecs = record->ts - secs * NSEC_PER_SEC;
 	}
 
-	if (pevent->latency_format) {
-		tep_data_latency_format(pevent, s, record);
+	if (tep->latency_format) {
+		tep_data_latency_format(tep, s, record);
 	}
 
 	if (use_usec_format) {
-		if (pevent->flags & TEP_NSEC_OUTPUT) {
+		if (tep->flags & TEP_NSEC_OUTPUT) {
 			usecs = nsecs;
 			p = 9;
 		} else {
@@ -5554,14 +5552,14 @@ void tep_print_event_time(struct tep_handle *pevent, struct trace_seq *s,
 
 /**
  * tep_print_event_data - Write the event data section
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @s: the trace_seq to write to
  * @event: the handle to the record's event
  * @record: The record to get the event from
  *
  * Writes the parsing of the record's data to @s.
  */
-void tep_print_event_data(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event_data(struct tep_handle *tep, struct trace_seq *s,
 			  struct tep_event *event,
 			  struct tep_record *record)
 {
@@ -5578,15 +5576,15 @@ void tep_print_event_data(struct tep_handle *pevent, struct trace_seq *s,
 	tep_event_info(s, event, record);
 }
 
-void tep_print_event(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event(struct tep_handle *tep, struct trace_seq *s,
 		     struct tep_record *record, bool use_trace_clock)
 {
 	struct tep_event *event;
 
-	event = tep_find_event_by_record(pevent, record);
+	event = tep_find_event_by_record(tep, record);
 	if (!event) {
 		int i;
-		int type = trace_parse_common_type(pevent, record->data);
+		int type = trace_parse_common_type(tep, record->data);
 
 		do_warning("ug! no event found for type %d", type);
 		trace_seq_printf(s, "[UNKNOWN TYPE %d]", type);
@@ -5596,9 +5594,9 @@ void tep_print_event(struct tep_handle *pevent, struct trace_seq *s,
 		return;
 	}
 
-	tep_print_event_task(pevent, s, event, record);
-	tep_print_event_time(pevent, s, event, record, use_trace_clock);
-	tep_print_event_data(pevent, s, event, record);
+	tep_print_event_task(tep, s, event, record);
+	tep_print_event_time(tep, s, event, record, use_trace_clock);
+	tep_print_event_data(tep, s, event, record);
 }
 
 static int events_id_cmp(const void *a, const void *b)
@@ -5649,29 +5647,30 @@ static int events_system_cmp(const void *a, const void *b)
 	return events_id_cmp(a, b);
 }
 
-struct tep_event **tep_list_events(struct tep_handle *pevent, enum tep_event_sort_type sort_type)
+struct tep_event **tep_list_events(struct tep_handle *tep,
+				   enum tep_event_sort_type sort_type)
 {
 	struct tep_event **events;
 	int (*sort)(const void *a, const void *b);
 
-	events = pevent->sort_events;
+	events = tep->sort_events;
 
-	if (events && pevent->last_type == sort_type)
+	if (events && tep->last_type == sort_type)
 		return events;
 
 	if (!events) {
-		events = malloc(sizeof(*events) * (pevent->nr_events + 1));
+		events = malloc(sizeof(*events) * (tep->nr_events + 1));
 		if (!events)
 			return NULL;
 
-		memcpy(events, pevent->events, sizeof(*events) * pevent->nr_events);
-		events[pevent->nr_events] = NULL;
+		memcpy(events, tep->events, sizeof(*events) * tep->nr_events);
+		events[tep->nr_events] = NULL;
 
-		pevent->sort_events = events;
+		tep->sort_events = events;
 
 		/* the internal events are sorted by id */
 		if (sort_type == TEP_EVENT_SORT_ID) {
-			pevent->last_type = sort_type;
+			tep->last_type = sort_type;
 			return events;
 		}
 	}
@@ -5690,8 +5689,8 @@ struct tep_event **tep_list_events(struct tep_handle *pevent, enum tep_event_sor
 		return events;
 	}
 
-	qsort(events, pevent->nr_events, sizeof(*events), sort);
-	pevent->last_type = sort_type;
+	qsort(events, tep->nr_events, sizeof(*events), sort);
+	tep->last_type = sort_type;
 
 	return events;
 }
@@ -5950,7 +5949,7 @@ static void parse_header_field(const char *field,
 
 /**
  * tep_parse_header_page - parse the data stored in the header page
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @buf: the buffer storing the header page format string
  * @size: the size of @buf
  * @long_size: the long size to use if there is no header
@@ -5960,7 +5959,7 @@ static void parse_header_field(const char *field,
  *
  * /sys/kernel/debug/tracing/events/header_page
  */
-int tep_parse_header_page(struct tep_handle *pevent, char *buf, unsigned long size,
+int tep_parse_header_page(struct tep_handle *tep, char *buf, unsigned long size,
 			  int long_size)
 {
 	int ignore;
@@ -5970,22 +5969,22 @@ int tep_parse_header_page(struct tep_handle *pevent, char *buf, unsigned long si
 		 * Old kernels did not have header page info.
 		 * Sorry but we just use what we find here in user space.
 		 */
-		pevent->header_page_ts_size = sizeof(long long);
-		pevent->header_page_size_size = long_size;
-		pevent->header_page_data_offset = sizeof(long long) + long_size;
-		pevent->old_format = 1;
+		tep->header_page_ts_size = sizeof(long long);
+		tep->header_page_size_size = long_size;
+		tep->header_page_data_offset = sizeof(long long) + long_size;
+		tep->old_format = 1;
 		return -1;
 	}
 	init_input_buf(buf, size);
 
-	parse_header_field("timestamp", &pevent->header_page_ts_offset,
-			   &pevent->header_page_ts_size, 1);
-	parse_header_field("commit", &pevent->header_page_size_offset,
-			   &pevent->header_page_size_size, 1);
-	parse_header_field("overwrite", &pevent->header_page_overwrite,
+	parse_header_field("timestamp", &tep->header_page_ts_offset,
+			   &tep->header_page_ts_size, 1);
+	parse_header_field("commit", &tep->header_page_size_offset,
+			   &tep->header_page_size_size, 1);
+	parse_header_field("overwrite", &tep->header_page_overwrite,
 			   &ignore, 0);
-	parse_header_field("data", &pevent->header_page_data_offset,
-			   &pevent->header_page_data_size, 1);
+	parse_header_field("data", &tep->header_page_data_offset,
+			   &tep->header_page_data_size, 1);
 
 	return 0;
 }
@@ -6191,7 +6190,7 @@ __parse_event(struct tep_handle *pevent,
 
 /**
  * tep_parse_format - parse the event format
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @eventp: returned format
  * @buf: the buffer storing the event format string
  * @size: the size of @buf
@@ -6204,17 +6203,17 @@ __parse_event(struct tep_handle *pevent,
  *
  * /sys/kernel/debug/tracing/events/.../.../format
  */
-enum tep_errno tep_parse_format(struct tep_handle *pevent,
+enum tep_errno tep_parse_format(struct tep_handle *tep,
 				struct tep_event **eventp,
 				const char *buf,
 				unsigned long size, const char *sys)
 {
-	return __parse_event(pevent, eventp, buf, size, sys);
+	return __parse_event(tep, eventp, buf, size, sys);
 }
 
 /**
  * tep_parse_event - parse the event format
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @buf: the buffer storing the event format string
  * @size: the size of @buf
  * @sys: the system the event belongs to
@@ -6226,11 +6225,11 @@ enum tep_errno tep_parse_format(struct tep_handle *pevent,
  *
  * /sys/kernel/debug/tracing/events/.../.../format
  */
-enum tep_errno tep_parse_event(struct tep_handle *pevent, const char *buf,
+enum tep_errno tep_parse_event(struct tep_handle *tep, const char *buf,
 			       unsigned long size, const char *sys)
 {
 	struct tep_event *event = NULL;
-	return __parse_event(pevent, &event, buf, size, sys);
+	return __parse_event(tep, &event, buf, size, sys);
 }
 
 int get_field_val(struct trace_seq *s, struct tep_format_field *field,
@@ -6470,7 +6469,7 @@ static void free_func_handle(struct tep_function_handler *func)
 
 /**
  * tep_register_print_function - register a helper function
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @func: the function to process the helper function
  * @ret_type: the return type of the helper function
  * @name: the name of the helper function
@@ -6483,7 +6482,7 @@ static void free_func_handle(struct tep_function_handler *func)
  * The @parameters is a variable list of tep_func_arg_type enums that
  * must end with TEP_FUNC_ARG_VOID.
  */
-int tep_register_print_function(struct tep_handle *pevent,
+int tep_register_print_function(struct tep_handle *tep,
 				tep_func_handler func,
 				enum tep_func_arg_type ret_type,
 				char *name, ...)
@@ -6495,7 +6494,7 @@ int tep_register_print_function(struct tep_handle *pevent,
 	va_list ap;
 	int ret;
 
-	func_handle = find_func_handler(pevent, name);
+	func_handle = find_func_handler(tep, name);
 	if (func_handle) {
 		/*
 		 * This is most like caused by the users own
@@ -6503,7 +6502,7 @@ int tep_register_print_function(struct tep_handle *pevent,
 		 * system defaults.
 		 */
 		pr_stat("override of function helper '%s'", name);
-		remove_func_handler(pevent, name);
+		remove_func_handler(tep, name);
 	}
 
 	func_handle = calloc(1, sizeof(*func_handle));
@@ -6550,8 +6549,8 @@ int tep_register_print_function(struct tep_handle *pevent,
 	}
 	va_end(ap);
 
-	func_handle->next = pevent->func_handlers;
-	pevent->func_handlers = func_handle;
+	func_handle->next = tep->func_handlers;
+	tep->func_handlers = func_handle;
 
 	return 0;
  out_free:
@@ -6562,7 +6561,7 @@ int tep_register_print_function(struct tep_handle *pevent,
 
 /**
  * tep_unregister_print_function - unregister a helper function
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @func: the function to process the helper function
  * @name: the name of the helper function
  *
@@ -6570,14 +6569,14 @@ int tep_register_print_function(struct tep_handle *pevent,
  *
  * Returns 0 if the handler was removed successully, -1 otherwise.
  */
-int tep_unregister_print_function(struct tep_handle *pevent,
+int tep_unregister_print_function(struct tep_handle *tep,
 				  tep_func_handler func, char *name)
 {
 	struct tep_function_handler *func_handle;
 
-	func_handle = find_func_handler(pevent, name);
+	func_handle = find_func_handler(tep, name);
 	if (func_handle && func_handle->func == func) {
-		remove_func_handler(pevent, name);
+		remove_func_handler(tep, name);
 		return 0;
 	}
 	return -1;
@@ -6608,7 +6607,7 @@ static struct tep_event *search_event(struct tep_handle *pevent, int id,
 
 /**
  * tep_register_event_handler - register a way to parse an event
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @id: the id of the event to register
  * @sys_name: the system name the event belongs to
  * @event_name: the name of the event
@@ -6629,14 +6628,14 @@ static struct tep_event *search_event(struct tep_handle *pevent, int id,
  *  negative TEP_ERRNO_... in case of an error
  *
  */
-int tep_register_event_handler(struct tep_handle *pevent, int id,
+int tep_register_event_handler(struct tep_handle *tep, int id,
 			       const char *sys_name, const char *event_name,
 			       tep_event_handler_func func, void *context)
 {
 	struct tep_event *event;
 	struct event_handler *handle;
 
-	event = search_event(pevent, id, sys_name, event_name);
+	event = search_event(tep, id, sys_name, event_name);
 	if (event == NULL)
 		goto not_found;
 
@@ -6671,8 +6670,8 @@ int tep_register_event_handler(struct tep_handle *pevent, int id,
 	}
 
 	handle->func = func;
-	handle->next = pevent->handlers;
-	pevent->handlers = handle;
+	handle->next = tep->handlers;
+	tep->handlers = handle;
 	handle->context = context;
 
 	return TEP_REGISTER_SUCCESS;
@@ -6699,7 +6698,7 @@ static int handle_matches(struct event_handler *handler, int id,
 
 /**
  * tep_unregister_event_handler - unregister an existing event handler
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @id: the id of the event to unregister
  * @sys_name: the system name the handler belongs to
  * @event_name: the name of the event handler
@@ -6713,7 +6712,7 @@ static int handle_matches(struct event_handler *handler, int id,
  *
  * Returns 0 if handler was removed successfully, -1 if event was not found.
  */
-int tep_unregister_event_handler(struct tep_handle *pevent, int id,
+int tep_unregister_event_handler(struct tep_handle *tep, int id,
 				 const char *sys_name, const char *event_name,
 				 tep_event_handler_func func, void *context)
 {
@@ -6721,7 +6720,7 @@ int tep_unregister_event_handler(struct tep_handle *pevent, int id,
 	struct event_handler *handle;
 	struct event_handler **next;
 
-	event = search_event(pevent, id, sys_name, event_name);
+	event = search_event(tep, id, sys_name, event_name);
 	if (event == NULL)
 		goto not_found;
 
@@ -6735,7 +6734,7 @@ int tep_unregister_event_handler(struct tep_handle *pevent, int id,
 	}
 
 not_found:
-	for (next = &pevent->handlers; *next; next = &(*next)->next) {
+	for (next = &tep->handlers; *next; next = &(*next)->next) {
 		handle = *next;
 		if (handle_matches(handle, id, sys_name, event_name,
 				   func, context))
@@ -6752,7 +6751,7 @@ int tep_unregister_event_handler(struct tep_handle *pevent, int id,
 }
 
 /**
- * tep_alloc - create a pevent handle
+ * tep_alloc - create a tep handle
  */
 struct tep_handle *tep_alloc(void)
 {
@@ -6766,9 +6765,9 @@ struct tep_handle *tep_alloc(void)
 	return pevent;
 }
 
-void tep_ref(struct tep_handle *pevent)
+void tep_ref(struct tep_handle *tep)
 {
-	pevent->ref_count++;
+	tep->ref_count++;
 }
 
 int tep_get_ref(struct tep_handle *tep)
@@ -6818,10 +6817,10 @@ void tep_free_event(struct tep_event *event)
 }
 
 /**
- * tep_free - free a pevent handle
- * @pevent: the pevent handle to free
+ * tep_free - free a tep handle
+ * @tep: the tep handle to free
  */
-void tep_free(struct tep_handle *pevent)
+void tep_free(struct tep_handle *tep)
 {
 	struct cmdline_list *cmdlist, *cmdnext;
 	struct func_list *funclist, *funcnext;
@@ -6830,21 +6829,21 @@ void tep_free(struct tep_handle *pevent)
 	struct event_handler *handle;
 	int i;
 
-	if (!pevent)
+	if (!tep)
 		return;
 
-	cmdlist = pevent->cmdlist;
-	funclist = pevent->funclist;
-	printklist = pevent->printklist;
+	cmdlist = tep->cmdlist;
+	funclist = tep->funclist;
+	printklist = tep->printklist;
 
-	pevent->ref_count--;
-	if (pevent->ref_count)
+	tep->ref_count--;
+	if (tep->ref_count)
 		return;
 
-	if (pevent->cmdlines) {
-		for (i = 0; i < pevent->cmdline_count; i++)
-			free(pevent->cmdlines[i].comm);
-		free(pevent->cmdlines);
+	if (tep->cmdlines) {
+		for (i = 0; i < tep->cmdline_count; i++)
+			free(tep->cmdlines[i].comm);
+		free(tep->cmdlines);
 	}
 
 	while (cmdlist) {
@@ -6854,12 +6853,12 @@ void tep_free(struct tep_handle *pevent)
 		cmdlist = cmdnext;
 	}
 
-	if (pevent->func_map) {
-		for (i = 0; i < (int)pevent->func_count; i++) {
-			free(pevent->func_map[i].func);
-			free(pevent->func_map[i].mod);
+	if (tep->func_map) {
+		for (i = 0; i < (int)tep->func_count; i++) {
+			free(tep->func_map[i].func);
+			free(tep->func_map[i].mod);
 		}
-		free(pevent->func_map);
+		free(tep->func_map);
 	}
 
 	while (funclist) {
@@ -6870,16 +6869,16 @@ void tep_free(struct tep_handle *pevent)
 		funclist = funcnext;
 	}
 
-	while (pevent->func_handlers) {
-		func_handler = pevent->func_handlers;
-		pevent->func_handlers = func_handler->next;
+	while (tep->func_handlers) {
+		func_handler = tep->func_handlers;
+		tep->func_handlers = func_handler->next;
 		free_func_handle(func_handler);
 	}
 
-	if (pevent->printk_map) {
-		for (i = 0; i < (int)pevent->printk_count; i++)
-			free(pevent->printk_map[i].printk);
-		free(pevent->printk_map);
+	if (tep->printk_map) {
+		for (i = 0; i < (int)tep->printk_count; i++)
+			free(tep->printk_map[i].printk);
+		free(tep->printk_map);
 	}
 
 	while (printklist) {
@@ -6889,24 +6888,24 @@ void tep_free(struct tep_handle *pevent)
 		printklist = printknext;
 	}
 
-	for (i = 0; i < pevent->nr_events; i++)
-		tep_free_event(pevent->events[i]);
+	for (i = 0; i < tep->nr_events; i++)
+		tep_free_event(tep->events[i]);
 
-	while (pevent->handlers) {
-		handle = pevent->handlers;
-		pevent->handlers = handle->next;
+	while (tep->handlers) {
+		handle = tep->handlers;
+		tep->handlers = handle->next;
 		free_handler(handle);
 	}
 
-	free(pevent->trace_clock);
-	free(pevent->events);
-	free(pevent->sort_events);
-	free(pevent->func_resolver);
+	free(tep->trace_clock);
+	free(tep->events);
+	free(tep->sort_events);
+	free(tep->func_resolver);
 
-	free(pevent);
+	free(tep);
 }
 
-void tep_unref(struct tep_handle *pevent)
+void tep_unref(struct tep_handle *tep)
 {
-	tep_free(pevent);
+	tep_free(tep);
 }
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 790e9b804e7a..6438f9b55fbe 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -64,8 +64,8 @@ typedef int (*tep_event_handler_func)(struct trace_seq *s,
 				      struct tep_event *event,
 				      void *context);
 
-typedef int (*tep_plugin_load_func)(struct tep_handle *pevent);
-typedef int (*tep_plugin_unload_func)(struct tep_handle *pevent);
+typedef int (*tep_plugin_load_func)(struct tep_handle *tep);
+typedef int (*tep_plugin_unload_func)(struct tep_handle *tep);
 
 struct tep_plugin_option {
 	struct tep_plugin_option	*next;
@@ -85,12 +85,12 @@ struct tep_plugin_option {
  * TEP_PLUGIN_LOADER:  (required)
  *   The function name to initialized the plugin.
  *
- *   int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+ *   int TEP_PLUGIN_LOADER(struct tep_handle *tep)
  *
  * TEP_PLUGIN_UNLOADER:  (optional)
  *   The function called just before unloading
  *
- *   int TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+ *   int TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
  *
  * TEP_PLUGIN_OPTIONS:  (optional)
  *   Plugin options that can be set before loading
@@ -393,9 +393,9 @@ struct tep_plugin_list;
 
 #define INVALID_PLUGIN_LIST_OPTION	((char **)((unsigned long)-1))
 
-struct tep_plugin_list *tep_load_plugins(struct tep_handle *pevent);
+struct tep_plugin_list *tep_load_plugins(struct tep_handle *tep);
 void tep_unload_plugins(struct tep_plugin_list *plugin_list,
-			struct tep_handle *pevent);
+			struct tep_handle *tep);
 char **tep_plugin_list_options(void);
 void tep_plugin_free_options_list(char **list);
 int tep_plugin_add_options(const char *name,
@@ -430,37 +430,37 @@ enum trace_flag_type {
 	TRACE_FLAG_SOFTIRQ		= 0x10,
 };
 
-int tep_set_function_resolver(struct tep_handle *pevent,
+int tep_set_function_resolver(struct tep_handle *tep,
 			      tep_func_resolver_t *func, void *priv);
-void tep_reset_function_resolver(struct tep_handle *pevent);
-int tep_register_comm(struct tep_handle *pevent, const char *comm, int pid);
-int tep_override_comm(struct tep_handle *pevent, const char *comm, int pid);
-int tep_register_trace_clock(struct tep_handle *pevent, const char *trace_clock);
-int tep_register_function(struct tep_handle *pevent, char *name,
+void tep_reset_function_resolver(struct tep_handle *tep);
+int tep_register_comm(struct tep_handle *tep, const char *comm, int pid);
+int tep_override_comm(struct tep_handle *tep, const char *comm, int pid);
+int tep_register_trace_clock(struct tep_handle *tep, const char *trace_clock);
+int tep_register_function(struct tep_handle *tep, char *name,
 			  unsigned long long addr, char *mod);
-int tep_register_print_string(struct tep_handle *pevent, const char *fmt,
+int tep_register_print_string(struct tep_handle *tep, const char *fmt,
 			      unsigned long long addr);
-bool tep_is_pid_registered(struct tep_handle *pevent, int pid);
+bool tep_is_pid_registered(struct tep_handle *tep, int pid);
 
-void tep_print_event_task(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event_task(struct tep_handle *tep, struct trace_seq *s,
 			  struct tep_event *event,
 			  struct tep_record *record);
-void tep_print_event_time(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event_time(struct tep_handle *tep, struct trace_seq *s,
 			  struct tep_event *event,
 			  struct tep_record *record,
 			  bool use_trace_clock);
-void tep_print_event_data(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event_data(struct tep_handle *tep, struct trace_seq *s,
 			  struct tep_event *event,
 			  struct tep_record *record);
-void tep_print_event(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event(struct tep_handle *tep, struct trace_seq *s,
 		     struct tep_record *record, bool use_trace_clock);
 
-int tep_parse_header_page(struct tep_handle *pevent, char *buf, unsigned long size,
+int tep_parse_header_page(struct tep_handle *tep, char *buf, unsigned long size,
 			  int long_size);
 
-enum tep_errno tep_parse_event(struct tep_handle *pevent, const char *buf,
+enum tep_errno tep_parse_event(struct tep_handle *tep, const char *buf,
 			       unsigned long size, const char *sys);
-enum tep_errno tep_parse_format(struct tep_handle *pevent,
+enum tep_errno tep_parse_format(struct tep_handle *tep,
 				struct tep_event **eventp,
 				const char *buf,
 				unsigned long size, const char *sys);
@@ -492,51 +492,51 @@ enum tep_reg_handler {
 	TEP_REGISTER_SUCCESS_OVERWRITE,
 };
 
-int tep_register_event_handler(struct tep_handle *pevent, int id,
+int tep_register_event_handler(struct tep_handle *tep, int id,
 			       const char *sys_name, const char *event_name,
 			       tep_event_handler_func func, void *context);
-int tep_unregister_event_handler(struct tep_handle *pevent, int id,
+int tep_unregister_event_handler(struct tep_handle *tep, int id,
 				 const char *sys_name, const char *event_name,
 				 tep_event_handler_func func, void *context);
-int tep_register_print_function(struct tep_handle *pevent,
+int tep_register_print_function(struct tep_handle *tep,
 				tep_func_handler func,
 				enum tep_func_arg_type ret_type,
 				char *name, ...);
-int tep_unregister_print_function(struct tep_handle *pevent,
+int tep_unregister_print_function(struct tep_handle *tep,
 				  tep_func_handler func, char *name);
 
 struct tep_format_field *tep_find_common_field(struct tep_event *event, const char *name);
 struct tep_format_field *tep_find_field(struct tep_event *event, const char *name);
 struct tep_format_field *tep_find_any_field(struct tep_event *event, const char *name);
 
-const char *tep_find_function(struct tep_handle *pevent, unsigned long long addr);
+const char *tep_find_function(struct tep_handle *tep, unsigned long long addr);
 unsigned long long
-tep_find_function_address(struct tep_handle *pevent, unsigned long long addr);
-unsigned long long tep_read_number(struct tep_handle *pevent, const void *ptr, int size);
+tep_find_function_address(struct tep_handle *tep, unsigned long long addr);
+unsigned long long tep_read_number(struct tep_handle *tep, const void *ptr, int size);
 int tep_read_number_field(struct tep_format_field *field, const void *data,
 			  unsigned long long *value);
 
 struct tep_event *tep_get_first_event(struct tep_handle *tep);
 struct tep_event *tep_get_event(struct tep_handle *tep, int index);
 int tep_get_events_count(struct tep_handle *tep);
-struct tep_event *tep_find_event(struct tep_handle *pevent, int id);
+struct tep_event *tep_find_event(struct tep_handle *tep, int id);
 
 struct tep_event *
-tep_find_event_by_name(struct tep_handle *pevent, const char *sys, const char *name);
+tep_find_event_by_name(struct tep_handle *tep, const char *sys, const char *name);
 struct tep_event *
-tep_find_event_by_record(struct tep_handle *pevent, struct tep_record *record);
+tep_find_event_by_record(struct tep_handle *tep, struct tep_record *record);
 
-void tep_data_latency_format(struct tep_handle *pevent,
+void tep_data_latency_format(struct tep_handle *tep,
 			     struct trace_seq *s, struct tep_record *record);
-int tep_data_type(struct tep_handle *pevent, struct tep_record *rec);
-int tep_data_pid(struct tep_handle *pevent, struct tep_record *rec);
-int tep_data_preempt_count(struct tep_handle *pevent, struct tep_record *rec);
-int tep_data_flags(struct tep_handle *pevent, struct tep_record *rec);
-const char *tep_data_comm_from_pid(struct tep_handle *pevent, int pid);
+int tep_data_type(struct tep_handle *tep, struct tep_record *rec);
+int tep_data_pid(struct tep_handle *tep, struct tep_record *rec);
+int tep_data_preempt_count(struct tep_handle *tep, struct tep_record *rec);
+int tep_data_flags(struct tep_handle *tep, struct tep_record *rec);
+const char *tep_data_comm_from_pid(struct tep_handle *tep, int pid);
 struct tep_cmdline;
-struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *pevent, const char *comm,
+struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *tep, const char *comm,
 					   struct tep_cmdline *next);
-int tep_cmdline_pid(struct tep_handle *pevent, struct tep_cmdline *cmdline);
+int tep_cmdline_pid(struct tep_handle *tep, struct tep_cmdline *cmdline);
 
 void tep_print_field(struct trace_seq *s, void *data,
 		     struct tep_format_field *field);
@@ -544,10 +544,10 @@ void tep_print_fields(struct trace_seq *s, void *data,
 		      int size __maybe_unused, struct tep_event *event);
 void tep_event_info(struct trace_seq *s, struct tep_event *event,
 		    struct tep_record *record);
-int tep_strerror(struct tep_handle *pevent, enum tep_errno errnum,
+int tep_strerror(struct tep_handle *tep, enum tep_errno errnum,
 		 char *buf, size_t buflen);
 
-struct tep_event **tep_list_events(struct tep_handle *pevent, enum tep_event_sort_type);
+struct tep_event **tep_list_events(struct tep_handle *tep, enum tep_event_sort_type);
 struct tep_format_field **tep_event_common_fields(struct tep_event *event);
 struct tep_format_field **tep_event_fields(struct tep_event *event);
 
@@ -555,28 +555,28 @@ enum tep_endian {
         TEP_LITTLE_ENDIAN = 0,
         TEP_BIG_ENDIAN
 };
-int tep_get_cpus(struct tep_handle *pevent);
-void tep_set_cpus(struct tep_handle *pevent, int cpus);
-int tep_get_long_size(struct tep_handle *pevent);
-void tep_set_long_size(struct tep_handle *pevent, int long_size);
-int tep_get_page_size(struct tep_handle *pevent);
-void tep_set_page_size(struct tep_handle *pevent, int _page_size);
-bool tep_is_file_bigendian(struct tep_handle *pevent);
-void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian);
-bool tep_is_local_bigendian(struct tep_handle *pevent);
-void tep_set_local_bigendian(struct tep_handle *pevent, enum tep_endian endian);
-bool tep_is_latency_format(struct tep_handle *pevent);
-void tep_set_latency_format(struct tep_handle *pevent, int lat);
-int tep_get_header_page_size(struct tep_handle *pevent);
+int tep_get_cpus(struct tep_handle *tep);
+void tep_set_cpus(struct tep_handle *tep, int cpus);
+int tep_get_long_size(struct tep_handle *tep);
+void tep_set_long_size(struct tep_handle *tep, int long_size);
+int tep_get_page_size(struct tep_handle *tep);
+void tep_set_page_size(struct tep_handle *tep, int _page_size);
+bool tep_is_file_bigendian(struct tep_handle *tep);
+void tep_set_file_bigendian(struct tep_handle *tep, enum tep_endian endian);
+bool tep_is_local_bigendian(struct tep_handle *tep);
+void tep_set_local_bigendian(struct tep_handle *tep, enum tep_endian endian);
+bool tep_is_latency_format(struct tep_handle *tep);
+void tep_set_latency_format(struct tep_handle *tep, int lat);
+int tep_get_header_page_size(struct tep_handle *tep);
 int tep_get_header_timestamp_size(struct tep_handle *tep);
 bool tep_is_old_format(struct tep_handle *tep);
 void tep_set_print_raw(struct tep_handle *tep, int print_raw);
 void tep_set_test_filters(struct tep_handle *tep, int test_filters);
 
 struct tep_handle *tep_alloc(void);
-void tep_free(struct tep_handle *pevent);
-void tep_ref(struct tep_handle *pevent);
-void tep_unref(struct tep_handle *pevent);
+void tep_free(struct tep_handle *tep);
+void tep_ref(struct tep_handle *tep);
+void tep_unref(struct tep_handle *tep);
 int tep_get_ref(struct tep_handle *tep);
 
 /* access to the internal parser */
@@ -588,8 +588,8 @@ const char *tep_get_input_buf(void);
 unsigned long long tep_get_input_buf_ptr(void);
 
 /* for debugging */
-void tep_print_funcs(struct tep_handle *pevent);
-void tep_print_printk(struct tep_handle *pevent);
+void tep_print_funcs(struct tep_handle *tep);
+void tep_print_printk(struct tep_handle *tep);
 
 /* ----------------------- filtering ----------------------- */
 
@@ -722,7 +722,7 @@ struct tep_event_filter {
 	char			error_buffer[TEP_FILTER_ERROR_BUFSZ];
 };
 
-struct tep_event_filter *tep_filter_alloc(struct tep_handle *pevent);
+struct tep_event_filter *tep_filter_alloc(struct tep_handle *tep);
 
 /* for backward compatibility */
 #define FILTER_NONE		TEP_ERRNO__NO_FILTER
diff --git a/tools/lib/traceevent/event-plugin.c b/tools/lib/traceevent/event-plugin.c
index e74f16c88398..d0488de0174a 100644
--- a/tools/lib/traceevent/event-plugin.c
+++ b/tools/lib/traceevent/event-plugin.c
@@ -419,16 +419,16 @@ load_plugins(struct tep_handle *pevent, const char *suffix,
 }
 
 struct tep_plugin_list*
-tep_load_plugins(struct tep_handle *pevent)
+tep_load_plugins(struct tep_handle *tep)
 {
 	struct tep_plugin_list *list = NULL;
 
-	load_plugins(pevent, ".so", load_plugin, &list);
+	load_plugins(tep, ".so", load_plugin, &list);
 	return list;
 }
 
 void
-tep_unload_plugins(struct tep_plugin_list *plugin_list, struct tep_handle *pevent)
+tep_unload_plugins(struct tep_plugin_list *plugin_list, struct tep_handle *tep)
 {
 	tep_plugin_unload_func func;
 	struct tep_plugin_list *list;
@@ -438,7 +438,7 @@ tep_unload_plugins(struct tep_plugin_list *plugin_list, struct tep_handle *peven
 		plugin_list = list->next;
 		func = dlsym(list->handle, TEP_PLUGIN_UNLOADER_NAME);
 		if (func)
-			func(pevent);
+			func(tep);
 		dlclose(list->handle);
 		free(list->name);
 		free(list);
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index 4ffd8b25a852..ce437ac286e9 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -164,9 +164,9 @@ add_filter_type(struct tep_event_filter *filter, int id)
 
 /**
  * tep_filter_alloc - create a new event filter
- * @pevent: The pevent that this filter is associated with
+ * @tep: The tep that this filter is associated with
  */
-struct tep_event_filter *tep_filter_alloc(struct tep_handle *pevent)
+struct tep_event_filter *tep_filter_alloc(struct tep_handle *tep)
 {
 	struct tep_event_filter *filter;
 
@@ -175,8 +175,8 @@ struct tep_event_filter *tep_filter_alloc(struct tep_handle *pevent)
 		return NULL;
 
 	memset(filter, 0, sizeof(*filter));
-	filter->pevent = pevent;
-	tep_ref(pevent);
+	filter->pevent = tep;
+	tep_ref(tep);
 
 	return filter;
 }
diff --git a/tools/lib/traceevent/plugin_cfg80211.c b/tools/lib/traceevent/plugin_cfg80211.c
index a51b366f47da..3d43b56a6c98 100644
--- a/tools/lib/traceevent/plugin_cfg80211.c
+++ b/tools/lib/traceevent/plugin_cfg80211.c
@@ -25,9 +25,9 @@ process___le16_to_cpup(struct trace_seq *s, unsigned long long *args)
 	return val ? (long long) le16toh(*val) : 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_print_function(pevent,
+	tep_register_print_function(tep,
 				    process___le16_to_cpup,
 				    TEP_FUNC_ARG_INT,
 				    "__le16_to_cpup",
@@ -36,8 +36,8 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_print_function(pevent, process___le16_to_cpup,
+	tep_unregister_print_function(tep, process___le16_to_cpup,
 				      "__le16_to_cpup");
 }
diff --git a/tools/lib/traceevent/plugin_function.c b/tools/lib/traceevent/plugin_function.c
index a73eca34a8f9..e93f33bd705f 100644
--- a/tools/lib/traceevent/plugin_function.c
+++ b/tools/lib/traceevent/plugin_function.c
@@ -164,9 +164,9 @@ static int function_handler(struct trace_seq *s, struct tep_record *record,
 	return 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_event_handler(pevent, -1, "ftrace", "function",
+	tep_register_event_handler(tep, -1, "ftrace", "function",
 				   function_handler, NULL);
 
 	tep_plugin_add_options("ftrace", plugin_options);
@@ -174,11 +174,11 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
 	int i, x;
 
-	tep_unregister_event_handler(pevent, -1, "ftrace", "function",
+	tep_unregister_event_handler(tep, -1, "ftrace", "function",
 				     function_handler, NULL);
 
 	for (i = 0; i <= cpus; i++) {
diff --git a/tools/lib/traceevent/plugin_hrtimer.c b/tools/lib/traceevent/plugin_hrtimer.c
index 5db5e401275f..bb434e0ed03a 100644
--- a/tools/lib/traceevent/plugin_hrtimer.c
+++ b/tools/lib/traceevent/plugin_hrtimer.c
@@ -67,23 +67,23 @@ static int timer_start_handler(struct trace_seq *s,
 	return 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_event_handler(pevent, -1,
+	tep_register_event_handler(tep, -1,
 				   "timer", "hrtimer_expire_entry",
 				   timer_expire_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "timer", "hrtimer_start",
+	tep_register_event_handler(tep, -1, "timer", "hrtimer_start",
 				   timer_start_handler, NULL);
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_event_handler(pevent, -1,
+	tep_unregister_event_handler(tep, -1,
 				     "timer", "hrtimer_expire_entry",
 				     timer_expire_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "timer", "hrtimer_start",
+	tep_unregister_event_handler(tep, -1, "timer", "hrtimer_start",
 				     timer_start_handler, NULL);
 }
diff --git a/tools/lib/traceevent/plugin_jbd2.c b/tools/lib/traceevent/plugin_jbd2.c
index a5e34135dd6a..04fc125f38cb 100644
--- a/tools/lib/traceevent/plugin_jbd2.c
+++ b/tools/lib/traceevent/plugin_jbd2.c
@@ -48,16 +48,16 @@ process_jiffies_to_msecs(struct trace_seq *s, unsigned long long *args)
 	return jiffies;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_print_function(pevent,
+	tep_register_print_function(tep,
 				    process_jbd2_dev_to_name,
 				    TEP_FUNC_ARG_STRING,
 				    "jbd2_dev_to_name",
 				    TEP_FUNC_ARG_INT,
 				    TEP_FUNC_ARG_VOID);
 
-	tep_register_print_function(pevent,
+	tep_register_print_function(tep,
 				    process_jiffies_to_msecs,
 				    TEP_FUNC_ARG_LONG,
 				    "jiffies_to_msecs",
@@ -66,11 +66,11 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_print_function(pevent, process_jbd2_dev_to_name,
+	tep_unregister_print_function(tep, process_jbd2_dev_to_name,
 				      "jbd2_dev_to_name");
 
-	tep_unregister_print_function(pevent, process_jiffies_to_msecs,
+	tep_unregister_print_function(tep, process_jiffies_to_msecs,
 				      "jiffies_to_msecs");
 }
diff --git a/tools/lib/traceevent/plugin_kmem.c b/tools/lib/traceevent/plugin_kmem.c
index 0e3c601f9ed1..c09bafdd8377 100644
--- a/tools/lib/traceevent/plugin_kmem.c
+++ b/tools/lib/traceevent/plugin_kmem.c
@@ -49,47 +49,47 @@ static int call_site_handler(struct trace_seq *s, struct tep_record *record,
 	return 1;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_event_handler(pevent, -1, "kmem", "kfree",
+	tep_register_event_handler(tep, -1, "kmem", "kfree",
 				   call_site_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kmem", "kmalloc",
+	tep_register_event_handler(tep, -1, "kmem", "kmalloc",
 				   call_site_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kmem", "kmalloc_node",
+	tep_register_event_handler(tep, -1, "kmem", "kmalloc_node",
 				   call_site_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kmem", "kmem_cache_alloc",
+	tep_register_event_handler(tep, -1, "kmem", "kmem_cache_alloc",
 				   call_site_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kmem",
+	tep_register_event_handler(tep, -1, "kmem",
 				   "kmem_cache_alloc_node",
 				   call_site_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kmem", "kmem_cache_free",
+	tep_register_event_handler(tep, -1, "kmem", "kmem_cache_free",
 				   call_site_handler, NULL);
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_event_handler(pevent, -1, "kmem", "kfree",
+	tep_unregister_event_handler(tep, -1, "kmem", "kfree",
 				     call_site_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kmem", "kmalloc",
+	tep_unregister_event_handler(tep, -1, "kmem", "kmalloc",
 				     call_site_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kmem", "kmalloc_node",
+	tep_unregister_event_handler(tep, -1, "kmem", "kmalloc_node",
 				     call_site_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kmem", "kmem_cache_alloc",
+	tep_unregister_event_handler(tep, -1, "kmem", "kmem_cache_alloc",
 				     call_site_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kmem",
+	tep_unregister_event_handler(tep, -1, "kmem",
 				     "kmem_cache_alloc_node",
 				     call_site_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kmem", "kmem_cache_free",
+	tep_unregister_event_handler(tep, -1, "kmem", "kmem_cache_free",
 				     call_site_handler, NULL);
 }
diff --git a/tools/lib/traceevent/plugin_kvm.c b/tools/lib/traceevent/plugin_kvm.c
index 688e5d97d7a7..472298c2b531 100644
--- a/tools/lib/traceevent/plugin_kvm.c
+++ b/tools/lib/traceevent/plugin_kvm.c
@@ -445,40 +445,40 @@ process_is_writable_pte(struct trace_seq *s, unsigned long long *args)
 	return pte & PT_WRITABLE_MASK;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
 	init_disassembler();
 
-	tep_register_event_handler(pevent, -1, "kvm", "kvm_exit",
+	tep_register_event_handler(tep, -1, "kvm", "kvm_exit",
 				   kvm_exit_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvm", "kvm_emulate_insn",
+	tep_register_event_handler(tep, -1, "kvm", "kvm_emulate_insn",
 				   kvm_emulate_insn_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvm", "kvm_nested_vmexit",
+	tep_register_event_handler(tep, -1, "kvm", "kvm_nested_vmexit",
 				   kvm_nested_vmexit_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvm", "kvm_nested_vmexit_inject",
+	tep_register_event_handler(tep, -1, "kvm", "kvm_nested_vmexit_inject",
 				   kvm_nested_vmexit_inject_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_get_page",
+	tep_register_event_handler(tep, -1, "kvmmmu", "kvm_mmu_get_page",
 				   kvm_mmu_get_page_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_sync_page",
+	tep_register_event_handler(tep, -1, "kvmmmu", "kvm_mmu_sync_page",
 				   kvm_mmu_print_role, NULL);
 
-	tep_register_event_handler(pevent, -1,
+	tep_register_event_handler(tep, -1,
 				   "kvmmmu", "kvm_mmu_unsync_page",
 				   kvm_mmu_print_role, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_zap_page",
+	tep_register_event_handler(tep, -1, "kvmmmu", "kvm_mmu_zap_page",
 				   kvm_mmu_print_role, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvmmmu",
+	tep_register_event_handler(tep, -1, "kvmmmu",
 			"kvm_mmu_prepare_zap_page", kvm_mmu_print_role,
 			NULL);
 
-	tep_register_print_function(pevent,
+	tep_register_print_function(tep,
 				    process_is_writable_pte,
 				    TEP_FUNC_ARG_INT,
 				    "is_writable_pte",
@@ -487,37 +487,37 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_event_handler(pevent, -1, "kvm", "kvm_exit",
+	tep_unregister_event_handler(tep, -1, "kvm", "kvm_exit",
 				     kvm_exit_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvm", "kvm_emulate_insn",
+	tep_unregister_event_handler(tep, -1, "kvm", "kvm_emulate_insn",
 				     kvm_emulate_insn_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvm", "kvm_nested_vmexit",
+	tep_unregister_event_handler(tep, -1, "kvm", "kvm_nested_vmexit",
 				     kvm_nested_vmexit_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvm", "kvm_nested_vmexit_inject",
+	tep_unregister_event_handler(tep, -1, "kvm", "kvm_nested_vmexit_inject",
 				     kvm_nested_vmexit_inject_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_get_page",
+	tep_unregister_event_handler(tep, -1, "kvmmmu", "kvm_mmu_get_page",
 				     kvm_mmu_get_page_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_sync_page",
+	tep_unregister_event_handler(tep, -1, "kvmmmu", "kvm_mmu_sync_page",
 				     kvm_mmu_print_role, NULL);
 
-	tep_unregister_event_handler(pevent, -1,
+	tep_unregister_event_handler(tep, -1,
 				     "kvmmmu", "kvm_mmu_unsync_page",
 				     kvm_mmu_print_role, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_zap_page",
+	tep_unregister_event_handler(tep, -1, "kvmmmu", "kvm_mmu_zap_page",
 				     kvm_mmu_print_role, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvmmmu",
+	tep_unregister_event_handler(tep, -1, "kvmmmu",
 			"kvm_mmu_prepare_zap_page", kvm_mmu_print_role,
 			NULL);
 
-	tep_unregister_print_function(pevent, process_is_writable_pte,
+	tep_unregister_print_function(tep, process_is_writable_pte,
 				      "is_writable_pte");
 }
diff --git a/tools/lib/traceevent/plugin_mac80211.c b/tools/lib/traceevent/plugin_mac80211.c
index e38b9477aad2..884303c26b5c 100644
--- a/tools/lib/traceevent/plugin_mac80211.c
+++ b/tools/lib/traceevent/plugin_mac80211.c
@@ -87,17 +87,17 @@ static int drv_bss_info_changed(struct trace_seq *s,
 	return 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_event_handler(pevent, -1, "mac80211",
+	tep_register_event_handler(tep, -1, "mac80211",
 				   "drv_bss_info_changed",
 				   drv_bss_info_changed, NULL);
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_event_handler(pevent, -1, "mac80211",
+	tep_unregister_event_handler(tep, -1, "mac80211",
 				     "drv_bss_info_changed",
 				     drv_bss_info_changed, NULL);
 }
diff --git a/tools/lib/traceevent/plugin_sched_switch.c b/tools/lib/traceevent/plugin_sched_switch.c
index 834c9e378ff8..701c22913cf8 100644
--- a/tools/lib/traceevent/plugin_sched_switch.c
+++ b/tools/lib/traceevent/plugin_sched_switch.c
@@ -135,27 +135,27 @@ static int sched_switch_handler(struct trace_seq *s,
 	return 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_event_handler(pevent, -1, "sched", "sched_switch",
+	tep_register_event_handler(tep, -1, "sched", "sched_switch",
 				   sched_switch_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "sched", "sched_wakeup",
+	tep_register_event_handler(tep, -1, "sched", "sched_wakeup",
 				   sched_wakeup_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "sched", "sched_wakeup_new",
+	tep_register_event_handler(tep, -1, "sched", "sched_wakeup_new",
 				   sched_wakeup_handler, NULL);
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_event_handler(pevent, -1, "sched", "sched_switch",
+	tep_unregister_event_handler(tep, -1, "sched", "sched_switch",
 				     sched_switch_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "sched", "sched_wakeup",
+	tep_unregister_event_handler(tep, -1, "sched", "sched_wakeup",
 				     sched_wakeup_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "sched", "sched_wakeup_new",
+	tep_unregister_event_handler(tep, -1, "sched", "sched_wakeup_new",
 				     sched_wakeup_handler, NULL);
 }
diff --git a/tools/lib/traceevent/plugin_scsi.c b/tools/lib/traceevent/plugin_scsi.c
index 4eba25cc1431..5d0387a4b65a 100644
--- a/tools/lib/traceevent/plugin_scsi.c
+++ b/tools/lib/traceevent/plugin_scsi.c
@@ -414,9 +414,9 @@ unsigned long long process_scsi_trace_parse_cdb(struct trace_seq *s,
 	return 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_print_function(pevent,
+	tep_register_print_function(tep,
 				    process_scsi_trace_parse_cdb,
 				    TEP_FUNC_ARG_STRING,
 				    "scsi_trace_parse_cdb",
@@ -427,8 +427,8 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_print_function(pevent, process_scsi_trace_parse_cdb,
+	tep_unregister_print_function(tep, process_scsi_trace_parse_cdb,
 				      "scsi_trace_parse_cdb");
 }
diff --git a/tools/lib/traceevent/plugin_xen.c b/tools/lib/traceevent/plugin_xen.c
index bc0496e4c296..993b208d0323 100644
--- a/tools/lib/traceevent/plugin_xen.c
+++ b/tools/lib/traceevent/plugin_xen.c
@@ -120,9 +120,9 @@ unsigned long long process_xen_hypercall_name(struct trace_seq *s,
 	return 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_print_function(pevent,
+	tep_register_print_function(tep,
 				    process_xen_hypercall_name,
 				    TEP_FUNC_ARG_STRING,
 				    "xen_hypercall_name",
@@ -131,8 +131,8 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_print_function(pevent, process_xen_hypercall_name,
+	tep_unregister_print_function(tep, process_xen_hypercall_name,
 				      "xen_hypercall_name");
 }
-- 
2.20.1


^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH v2 3/5] tools/perf,tools/lib/traceevent: Rename "pevent" member of struct tep_event to "tep"
  2019-03-27 14:19 [PATCH v2 0/5] Cleanup traceevent API and make it more consistent Tzvetomir Stoyanov
  2019-03-27 14:19 ` [PATCH v2 1/5] tools/perf,tools/lib/traceevent: Make traceevent APIs " Tzvetomir Stoyanov
  2019-03-27 14:19 ` [PATCH v2 2/5] tools/lib/traceevent: Rename input arguments of libtraceevent APIs from pevent to tep Tzvetomir Stoyanov
@ 2019-03-27 14:19 ` Tzvetomir Stoyanov
  2019-03-27 14:19 ` [PATCH v2 4/5] tools/perf,tools/lib/traceevent: Rename "pevent" member of struct tep_event_filter " Tzvetomir Stoyanov
  2019-03-27 14:19 ` [PATCH v2 5/5] tools/lib/traceevent: Rename input arguments and local variables of libtraceevent from pevent to tep Tzvetomir Stoyanov
  4 siblings, 0 replies; 55+ messages in thread
From: Tzvetomir Stoyanov @ 2019-03-27 14:19 UTC (permalink / raw)
  To: rostedt; +Cc: linux-trace-devel, linux-kernel

This patch renames "pevent" member of the struct tep_event to "tep". This makes
the struct consistent with the chosen naming convention:
tep (trace event parser), instead of the old pevent.

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
---
 tools/lib/traceevent/event-parse.c            | 32 +++++++++----------
 tools/lib/traceevent/event-parse.h            |  2 +-
 tools/lib/traceevent/parse-filter.c           |  6 ++--
 tools/lib/traceevent/plugin_function.c        |  2 +-
 tools/lib/traceevent/plugin_kmem.c            |  4 +--
 tools/lib/traceevent/plugin_kvm.c             |  4 +--
 tools/lib/traceevent/plugin_sched_switch.c    |  2 +-
 tools/perf/builtin-kmem.c                     |  2 +-
 tools/perf/util/data-convert-bt.c             |  4 +--
 tools/perf/util/python.c                      |  2 +-
 .../util/scripting-engines/trace-event-perl.c |  2 +-
 .../scripting-engines/trace-event-python.c    |  2 +-
 tools/perf/util/trace-event-parse.c           |  2 +-
 13 files changed, 33 insertions(+), 33 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index f04cc0b68450..18fb22a89ef2 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -804,7 +804,7 @@ static int add_event(struct tep_handle *pevent, struct tep_event *event)
 	pevent->events[i] = event;
 	pevent->nr_events++;
 
-	event->pevent = pevent;
+	event->tep = pevent;
 
 	return 0;
 }
@@ -1656,8 +1656,8 @@ static int event_read_fields(struct tep_event *event, struct tep_format_field **
 			else if (field->flags & TEP_FIELD_IS_STRING)
 				field->elementsize = 1;
 			else if (field->flags & TEP_FIELD_IS_LONG)
-				field->elementsize = event->pevent ?
-						     event->pevent->long_size :
+				field->elementsize = event->tep ?
+						     event->tep->long_size :
 						     sizeof(long);
 		} else
 			field->elementsize = field->size;
@@ -3075,7 +3075,7 @@ process_function(struct tep_event *event, struct tep_print_arg *arg,
 		return process_dynamic_array_len(event, arg, tok);
 	}
 
-	func = find_func_handler(event->pevent, token);
+	func = find_func_handler(event->tep, token);
 	if (func) {
 		free_token(token);
 		return process_func_handler(event, func, arg, tok);
@@ -3405,7 +3405,7 @@ int tep_read_number_field(struct tep_format_field *field, const void *data,
 	case 2:
 	case 4:
 	case 8:
-		*value = tep_read_number(field->event->pevent,
+		*value = tep_read_number(field->event->tep,
 					 data + field->offset, field->size);
 		return 0;
 	default:
@@ -3566,7 +3566,7 @@ tep_find_event_by_name(struct tep_handle *tep,
 static unsigned long long
 eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg *arg)
 {
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	unsigned long long val = 0;
 	unsigned long long left, right;
 	struct tep_print_arg *typearg = NULL;
@@ -3907,7 +3907,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 			  struct tep_event *event, const char *format,
 			  int len_arg, struct tep_print_arg *arg)
 {
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	struct tep_print_flag_sym *flag;
 	struct tep_format_field *field;
 	struct printk_map *printk;
@@ -4256,7 +4256,7 @@ static void free_args(struct tep_print_arg *args)
 
 static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, struct tep_event *event)
 {
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	struct tep_format_field *field, *ip_field;
 	struct tep_print_arg *args, *arg, **next;
 	unsigned long long ip, val;
@@ -4433,7 +4433,7 @@ static char *
 get_bprint_format(void *data, int size __maybe_unused,
 		  struct tep_event *event)
 {
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	unsigned long long addr;
 	struct tep_format_field *field;
 	struct printk_map *printk;
@@ -4834,7 +4834,7 @@ void tep_print_field(struct trace_seq *s, void *data,
 {
 	unsigned long long val;
 	unsigned int offset, len, i;
-	struct tep_handle *pevent = field->event->pevent;
+	struct tep_handle *pevent = field->event->tep;
 
 	if (field->flags & TEP_FIELD_IS_ARRAY) {
 		offset = field->offset;
@@ -4909,7 +4909,7 @@ void tep_print_fields(struct trace_seq *s, void *data,
 
 static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_event *event)
 {
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	struct tep_print_fmt *print_fmt = &event->print_fmt;
 	struct tep_print_arg *arg = print_fmt->args;
 	struct tep_print_arg *args = NULL;
@@ -5423,7 +5423,7 @@ void tep_event_info(struct trace_seq *s, struct tep_event *event,
 {
 	int print_pretty = 1;
 
-	if (event->pevent->print_raw || (event->flags & TEP_EVENT_FL_PRINTRAW))
+	if (event->tep->print_raw || (event->flags & TEP_EVENT_FL_PRINTRAW))
 		tep_print_fields(s, record->data, record->size, event);
 	else {
 
@@ -6097,7 +6097,7 @@ enum tep_errno __tep_parse_format(struct tep_event **eventp,
 	}
 
 	/* Add pevent to event so that it can be referenced */
-	event->pevent = pevent;
+	event->tep = pevent;
 
 	ret = event_read_format(event);
 	if (ret < 0) {
@@ -6291,8 +6291,8 @@ void *tep_get_field_raw(struct trace_seq *s, struct tep_event *event,
 
 	offset = field->offset;
 	if (field->flags & TEP_FIELD_IS_DYNAMIC) {
-		offset = tep_read_number(event->pevent,
-					    data + offset, field->size);
+		offset = tep_read_number(event->tep,
+					 data + offset, field->size);
 		*len = offset >> 16;
 		offset &= 0xffff;
 	} else
@@ -6426,7 +6426,7 @@ int tep_print_func_field(struct trace_seq *s, const char *fmt,
 			 struct tep_record *record, int err)
 {
 	struct tep_format_field *field = tep_find_field(event, name);
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	unsigned long long val;
 	struct func_map *func;
 	char tmp[128];
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 6438f9b55fbe..594f9c52ebf1 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -278,7 +278,7 @@ struct tep_print_fmt {
 };
 
 struct tep_event {
-	struct tep_handle	*pevent;
+	struct tep_handle	*tep;
 	char			*name;
 	int			id;
 	int			flags;
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index ce437ac286e9..231e9cae5729 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -1531,8 +1531,8 @@ get_comm(struct tep_event *event, struct tep_record *record)
 	const char *comm;
 	int pid;
 
-	pid = tep_data_pid(event->pevent, record);
-	comm = tep_data_comm_from_pid(event->pevent, pid);
+	pid = tep_data_pid(event->tep, record);
+	comm = tep_data_comm_from_pid(event->tep, pid);
 	return comm;
 }
 
@@ -1730,7 +1730,7 @@ static const char *get_field_str(struct tep_filter_arg *arg, struct tep_record *
 
 	} else {
 		event = arg->str.field->event;
-		pevent = event->pevent;
+		pevent = event->tep;
 		addr = get_value(event, arg->str.field, record);
 
 		if (arg->str.field->flags & (TEP_FIELD_IS_POINTER | TEP_FIELD_IS_LONG))
diff --git a/tools/lib/traceevent/plugin_function.c b/tools/lib/traceevent/plugin_function.c
index e93f33bd705f..d6a8df060614 100644
--- a/tools/lib/traceevent/plugin_function.c
+++ b/tools/lib/traceevent/plugin_function.c
@@ -126,7 +126,7 @@ static int add_and_get_index(const char *parent, const char *child, int cpu)
 static int function_handler(struct trace_seq *s, struct tep_record *record,
 			    struct tep_event *event, void *context)
 {
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	unsigned long long function;
 	unsigned long long pfunction;
 	const char *func;
diff --git a/tools/lib/traceevent/plugin_kmem.c b/tools/lib/traceevent/plugin_kmem.c
index c09bafdd8377..edaec5d962c3 100644
--- a/tools/lib/traceevent/plugin_kmem.c
+++ b/tools/lib/traceevent/plugin_kmem.c
@@ -39,11 +39,11 @@ static int call_site_handler(struct trace_seq *s, struct tep_record *record,
 	if (tep_read_number_field(field, data, &val))
 		return 1;
 
-	func = tep_find_function(event->pevent, val);
+	func = tep_find_function(event->tep, val);
 	if (!func)
 		return 1;
 
-	addr = tep_find_function_address(event->pevent, val);
+	addr = tep_find_function_address(event->tep, val);
 
 	trace_seq_printf(s, "(%s+0x%x) ", func, (int)(val - addr));
 	return 1;
diff --git a/tools/lib/traceevent/plugin_kvm.c b/tools/lib/traceevent/plugin_kvm.c
index 472298c2b531..c8e623065a7e 100644
--- a/tools/lib/traceevent/plugin_kvm.c
+++ b/tools/lib/traceevent/plugin_kvm.c
@@ -389,8 +389,8 @@ static int kvm_mmu_print_role(struct trace_seq *s, struct tep_record *record,
 	 * We can only use the structure if file is of the same
 	 * endianness.
 	 */
-	if (tep_is_file_bigendian(event->pevent) ==
-	    tep_is_local_bigendian(event->pevent)) {
+	if (tep_is_file_bigendian(event->tep) ==
+	    tep_is_local_bigendian(event->tep)) {
 
 		trace_seq_printf(s, "%u q%u%s %s%s %spae %snxe %swp%s%s%s",
 				 role.level,
diff --git a/tools/lib/traceevent/plugin_sched_switch.c b/tools/lib/traceevent/plugin_sched_switch.c
index 701c22913cf8..957389a0ff7a 100644
--- a/tools/lib/traceevent/plugin_sched_switch.c
+++ b/tools/lib/traceevent/plugin_sched_switch.c
@@ -62,7 +62,7 @@ static void write_and_save_comm(struct tep_format_field *field,
 	comm = &s->buffer[len];
 
 	/* Help out the comm to ids. This will handle dups */
-	tep_register_comm(field->event->pevent, comm, pid);
+	tep_register_comm(field->event->tep, comm, pid);
 }
 
 static int sched_wakeup_handler(struct trace_seq *s,
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index fa520f4b8095..b80eee455111 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -1975,7 +1975,7 @@ int cmd_kmem(int argc, const char **argv)
 			goto out_delete;
 		}
 
-		kmem_page_size = tep_get_page_size(evsel->tp_format->pevent);
+		kmem_page_size = tep_get_page_size(evsel->tp_format->tep);
 		symbol_conf.use_callchain = true;
 	}
 
diff --git a/tools/perf/util/data-convert-bt.c b/tools/perf/util/data-convert-bt.c
index 26af43ad9ddd..e0311c9750ad 100644
--- a/tools/perf/util/data-convert-bt.c
+++ b/tools/perf/util/data-convert-bt.c
@@ -310,7 +310,7 @@ static int add_tracepoint_field_value(struct ctf_writer *cw,
 	if (flags & TEP_FIELD_IS_DYNAMIC) {
 		unsigned long long tmp_val;
 
-		tmp_val = tep_read_number(fmtf->event->pevent,
+		tmp_val = tep_read_number(fmtf->event->tep,
 					  data + offset, len);
 		offset = tmp_val;
 		len = offset >> 16;
@@ -354,7 +354,7 @@ static int add_tracepoint_field_value(struct ctf_writer *cw,
 			unsigned long long value_int;
 
 			value_int = tep_read_number(
-					fmtf->event->pevent,
+					fmtf->event->tep,
 					data + offset + i * len, len);
 
 			if (!(flags & TEP_FIELD_IS_SIGNED))
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index dda0ac978b1e..6aa7e2352e16 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -342,7 +342,7 @@ static bool is_tracepoint(struct pyrf_event *pevent)
 static PyObject*
 tracepoint_field(struct pyrf_event *pe, struct tep_format_field *field)
 {
-	struct tep_handle *pevent = field->event->pevent;
+	struct tep_handle *pevent = field->event->tep;
 	void *data = pe->sample.raw_data;
 	PyObject *ret = NULL;
 	unsigned long long val;
diff --git a/tools/perf/util/scripting-engines/trace-event-perl.c b/tools/perf/util/scripting-engines/trace-event-perl.c
index 5f06378a482b..61aa7f3df915 100644
--- a/tools/perf/util/scripting-engines/trace-event-perl.c
+++ b/tools/perf/util/scripting-engines/trace-event-perl.c
@@ -372,7 +372,7 @@ static void perl_process_tracepoint(struct perf_sample *sample,
 	ns = nsecs - s * NSEC_PER_SEC;
 
 	scripting_context->event_data = data;
-	scripting_context->pevent = evsel->tp_format->pevent;
+	scripting_context->pevent = evsel->tp_format->tep;
 
 	ENTER;
 	SAVETMPS;
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index 09604c6508f0..22f52b669871 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -837,7 +837,7 @@ static void python_process_tracepoint(struct perf_sample *sample,
 	ns = nsecs - s * NSEC_PER_SEC;
 
 	scripting_context->event_data = data;
-	scripting_context->pevent = evsel->tp_format->pevent;
+	scripting_context->pevent = evsel->tp_format->tep;
 
 	context = _PyCapsule_New(scripting_context, NULL, NULL);
 
diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index ad74be1f0e42..863955e4094e 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -111,7 +111,7 @@ raw_field_value(struct tep_event *event, const char *name, void *data)
 
 unsigned long long read_size(struct tep_event *event, void *ptr, int size)
 {
-	return tep_read_number(event->pevent, ptr, size);
+	return tep_read_number(event->tep, ptr, size);
 }
 
 void event_format__fprintf(struct tep_event *event,
-- 
2.20.1


^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH v2 4/5] tools/perf,tools/lib/traceevent: Rename "pevent" member of struct tep_event_filter to "tep"
  2019-03-27 14:19 [PATCH v2 0/5] Cleanup traceevent API and make it more consistent Tzvetomir Stoyanov
                   ` (2 preceding siblings ...)
  2019-03-27 14:19 ` [PATCH v2 3/5] tools/perf,tools/lib/traceevent: Rename "pevent" member of struct tep_event to "tep" Tzvetomir Stoyanov
@ 2019-03-27 14:19 ` Tzvetomir Stoyanov
  2019-03-27 14:19 ` [PATCH v2 5/5] tools/lib/traceevent: Rename input arguments and local variables of libtraceevent from pevent to tep Tzvetomir Stoyanov
  4 siblings, 0 replies; 55+ messages in thread
From: Tzvetomir Stoyanov @ 2019-03-27 14:19 UTC (permalink / raw)
  To: rostedt; +Cc: linux-trace-devel, linux-kernel

This patch renames "pevent" member of the struct tep_event_filter to "tep".
This makes the struct consistent with the chosen naming convention:
tep (trace event parser), instead of the old pevent.

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
---
 tools/lib/traceevent/event-parse.h  |  2 +-
 tools/lib/traceevent/parse-filter.c | 14 +++++++-------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 594f9c52ebf1..e3e4909bb866 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -716,7 +716,7 @@ struct tep_filter_type {
 #define TEP_FILTER_ERROR_BUFSZ  1024
 
 struct tep_event_filter {
-	struct tep_handle	*pevent;
+	struct tep_handle	*tep;
 	int			filters;
 	struct tep_filter_type	*event_filters;
 	char			error_buffer[TEP_FILTER_ERROR_BUFSZ];
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index 231e9cae5729..1d2f1343090d 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -154,7 +154,7 @@ add_filter_type(struct tep_event_filter *filter, int id)
 
 	filter_type = &filter->event_filters[i];
 	filter_type->event_id = id;
-	filter_type->event = tep_find_event(filter->pevent, id);
+	filter_type->event = tep_find_event(filter->tep, id);
 	filter_type->filter = NULL;
 
 	filter->filters++;
@@ -175,7 +175,7 @@ struct tep_event_filter *tep_filter_alloc(struct tep_handle *tep)
 		return NULL;
 
 	memset(filter, 0, sizeof(*filter));
-	filter->pevent = tep;
+	filter->tep = tep;
 	tep_ref(tep);
 
 	return filter;
@@ -1257,7 +1257,7 @@ static void filter_init_error_buf(struct tep_event_filter *filter)
 enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
 					 const char *filter_str)
 {
-	struct tep_handle *pevent = filter->pevent;
+	struct tep_handle *pevent = filter->tep;
 	struct event_list *event;
 	struct event_list *events = NULL;
 	const char *filter_start;
@@ -1380,7 +1380,7 @@ int tep_filter_strerror(struct tep_event_filter *filter, enum tep_errno err,
 		return 0;
 	}
 
-	return tep_strerror(filter->pevent, err, buf, buflen);
+	return tep_strerror(filter->tep, err, buf, buflen);
 }
 
 /**
@@ -1443,7 +1443,7 @@ void tep_filter_reset(struct tep_event_filter *filter)
 
 void tep_filter_free(struct tep_event_filter *filter)
 {
-	tep_unref(filter->pevent);
+	tep_unref(filter->tep);
 
 	tep_filter_reset(filter);
 
@@ -1465,7 +1465,7 @@ static int copy_filter_type(struct tep_event_filter *filter,
 	/* Can't assume that the pevent's are the same */
 	sys = filter_type->event->system;
 	name = filter_type->event->name;
-	event = tep_find_event_by_name(filter->pevent, sys, name);
+	event = tep_find_event_by_name(filter->tep, sys, name);
 	if (!event)
 		return -1;
 
@@ -1875,7 +1875,7 @@ int tep_event_filtered(struct tep_event_filter *filter, int event_id)
 enum tep_errno tep_filter_match(struct tep_event_filter *filter,
 				struct tep_record *record)
 {
-	struct tep_handle *pevent = filter->pevent;
+	struct tep_handle *pevent = filter->tep;
 	struct tep_filter_type *filter_type;
 	int event_id;
 	int ret;
-- 
2.20.1


^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH v2 5/5] tools/lib/traceevent: Rename input arguments and local variables of libtraceevent from pevent to tep
  2019-03-27 14:19 [PATCH v2 0/5] Cleanup traceevent API and make it more consistent Tzvetomir Stoyanov
                   ` (3 preceding siblings ...)
  2019-03-27 14:19 ` [PATCH v2 4/5] tools/perf,tools/lib/traceevent: Rename "pevent" member of struct tep_event_filter " Tzvetomir Stoyanov
@ 2019-03-27 14:19 ` Tzvetomir Stoyanov
  4 siblings, 0 replies; 55+ messages in thread
From: Tzvetomir Stoyanov @ 2019-03-27 14:19 UTC (permalink / raw)
  To: rostedt; +Cc: linux-trace-devel, linux-kernel

This patch renames from "pevent" to "tep":
 - all "pevent" input arguments of libtraceevent internal functions.
 - all local "pevent" variables of libtraceevent.
This makes the implementation consistent with the chosen naming convention,
tep (trace event parser), and will avoid any confusion with the old pevent name

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
---
 tools/lib/traceevent/event-parse.c     | 306 ++++++++++++-------------
 tools/lib/traceevent/event-plugin.c    |  24 +-
 tools/lib/traceevent/parse-filter.c    |  26 +--
 tools/lib/traceevent/plugin_function.c |   6 +-
 4 files changed, 181 insertions(+), 181 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 18fb22a89ef2..a6a7c9f561a5 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -148,14 +148,14 @@ struct cmdline_list {
 	int			pid;
 };
 
-static int cmdline_init(struct tep_handle *pevent)
+static int cmdline_init(struct tep_handle *tep)
 {
-	struct cmdline_list *cmdlist = pevent->cmdlist;
+	struct cmdline_list *cmdlist = tep->cmdlist;
 	struct cmdline_list *item;
 	struct tep_cmdline *cmdlines;
 	int i;
 
-	cmdlines = malloc(sizeof(*cmdlines) * pevent->cmdline_count);
+	cmdlines = malloc(sizeof(*cmdlines) * tep->cmdline_count);
 	if (!cmdlines)
 		return -1;
 
@@ -169,15 +169,15 @@ static int cmdline_init(struct tep_handle *pevent)
 		free(item);
 	}
 
-	qsort(cmdlines, pevent->cmdline_count, sizeof(*cmdlines), cmdline_cmp);
+	qsort(cmdlines, tep->cmdline_count, sizeof(*cmdlines), cmdline_cmp);
 
-	pevent->cmdlines = cmdlines;
-	pevent->cmdlist = NULL;
+	tep->cmdlines = cmdlines;
+	tep->cmdlist = NULL;
 
 	return 0;
 }
 
-static const char *find_cmdline(struct tep_handle *pevent, int pid)
+static const char *find_cmdline(struct tep_handle *tep, int pid)
 {
 	const struct tep_cmdline *comm;
 	struct tep_cmdline key;
@@ -185,13 +185,13 @@ static const char *find_cmdline(struct tep_handle *pevent, int pid)
 	if (!pid)
 		return "<idle>";
 
-	if (!pevent->cmdlines && cmdline_init(pevent))
+	if (!tep->cmdlines && cmdline_init(tep))
 		return "<not enough memory for cmdlines!>";
 
 	key.pid = pid;
 
-	comm = bsearch(&key, pevent->cmdlines, pevent->cmdline_count,
-		       sizeof(*pevent->cmdlines), cmdline_cmp);
+	comm = bsearch(&key, tep->cmdlines, tep->cmdline_count,
+		       sizeof(*tep->cmdlines), cmdline_cmp);
 
 	if (comm)
 		return comm->comm;
@@ -232,10 +232,10 @@ bool tep_is_pid_registered(struct tep_handle *tep, int pid)
  * we must add this pid. This is much slower than when cmdlines
  * are added before the array is initialized.
  */
-static int add_new_comm(struct tep_handle *pevent,
+static int add_new_comm(struct tep_handle *tep,
 			const char *comm, int pid, bool override)
 {
-	struct tep_cmdline *cmdlines = pevent->cmdlines;
+	struct tep_cmdline *cmdlines = tep->cmdlines;
 	struct tep_cmdline *cmdline;
 	struct tep_cmdline key;
 	char *new_comm;
@@ -246,8 +246,8 @@ static int add_new_comm(struct tep_handle *pevent,
 	/* avoid duplicates */
 	key.pid = pid;
 
-	cmdline = bsearch(&key, pevent->cmdlines, pevent->cmdline_count,
-		       sizeof(*pevent->cmdlines), cmdline_cmp);
+	cmdline = bsearch(&key, tep->cmdlines, tep->cmdline_count,
+			  sizeof(*tep->cmdlines), cmdline_cmp);
 	if (cmdline) {
 		if (!override) {
 			errno = EEXIST;
@@ -264,26 +264,26 @@ static int add_new_comm(struct tep_handle *pevent,
 		return 0;
 	}
 
-	cmdlines = realloc(cmdlines, sizeof(*cmdlines) * (pevent->cmdline_count + 1));
+	cmdlines = realloc(cmdlines, sizeof(*cmdlines) * (tep->cmdline_count + 1));
 	if (!cmdlines) {
 		errno = ENOMEM;
 		return -1;
 	}
 
-	cmdlines[pevent->cmdline_count].comm = strdup(comm);
-	if (!cmdlines[pevent->cmdline_count].comm) {
+	cmdlines[tep->cmdline_count].comm = strdup(comm);
+	if (!cmdlines[tep->cmdline_count].comm) {
 		free(cmdlines);
 		errno = ENOMEM;
 		return -1;
 	}
 
-	cmdlines[pevent->cmdline_count].pid = pid;
+	cmdlines[tep->cmdline_count].pid = pid;
 		
-	if (cmdlines[pevent->cmdline_count].comm)
-		pevent->cmdline_count++;
+	if (cmdlines[tep->cmdline_count].comm)
+		tep->cmdline_count++;
 
-	qsort(cmdlines, pevent->cmdline_count, sizeof(*cmdlines), cmdline_cmp);
-	pevent->cmdlines = cmdlines;
+	qsort(cmdlines, tep->cmdline_count, sizeof(*cmdlines), cmdline_cmp);
+	tep->cmdlines = cmdlines;
 
 	return 0;
 }
@@ -408,18 +408,18 @@ static int func_bcmp(const void *a, const void *b)
 	return 1;
 }
 
-static int func_map_init(struct tep_handle *pevent)
+static int func_map_init(struct tep_handle *tep)
 {
 	struct func_list *funclist;
 	struct func_list *item;
 	struct func_map *func_map;
 	int i;
 
-	func_map = malloc(sizeof(*func_map) * (pevent->func_count + 1));
+	func_map = malloc(sizeof(*func_map) * (tep->func_count + 1));
 	if (!func_map)
 		return -1;
 
-	funclist = pevent->funclist;
+	funclist = tep->funclist;
 
 	i = 0;
 	while (funclist) {
@@ -432,34 +432,34 @@ static int func_map_init(struct tep_handle *pevent)
 		free(item);
 	}
 
-	qsort(func_map, pevent->func_count, sizeof(*func_map), func_cmp);
+	qsort(func_map, tep->func_count, sizeof(*func_map), func_cmp);
 
 	/*
 	 * Add a special record at the end.
 	 */
-	func_map[pevent->func_count].func = NULL;
-	func_map[pevent->func_count].addr = 0;
-	func_map[pevent->func_count].mod = NULL;
+	func_map[tep->func_count].func = NULL;
+	func_map[tep->func_count].addr = 0;
+	func_map[tep->func_count].mod = NULL;
 
-	pevent->func_map = func_map;
-	pevent->funclist = NULL;
+	tep->func_map = func_map;
+	tep->funclist = NULL;
 
 	return 0;
 }
 
 static struct func_map *
-__find_func(struct tep_handle *pevent, unsigned long long addr)
+__find_func(struct tep_handle *tep, unsigned long long addr)
 {
 	struct func_map *func;
 	struct func_map key;
 
-	if (!pevent->func_map)
-		func_map_init(pevent);
+	if (!tep->func_map)
+		func_map_init(tep);
 
 	key.addr = addr;
 
-	func = bsearch(&key, pevent->func_map, pevent->func_count,
-		       sizeof(*pevent->func_map), func_bcmp);
+	func = bsearch(&key, tep->func_map, tep->func_count,
+		       sizeof(*tep->func_map), func_bcmp);
 
 	return func;
 }
@@ -510,18 +510,18 @@ void tep_reset_function_resolver(struct tep_handle *tep)
 }
 
 static struct func_map *
-find_func(struct tep_handle *pevent, unsigned long long addr)
+find_func(struct tep_handle *tep, unsigned long long addr)
 {
 	struct func_map *map;
 
-	if (!pevent->func_resolver)
-		return __find_func(pevent, addr);
+	if (!tep->func_resolver)
+		return __find_func(tep, addr);
 
-	map = &pevent->func_resolver->map;
+	map = &tep->func_resolver->map;
 	map->mod  = NULL;
 	map->addr = addr;
-	map->func = pevent->func_resolver->func(pevent->func_resolver->priv,
-						&map->addr, &map->mod);
+	map->func = tep->func_resolver->func(tep->func_resolver->priv,
+					     &map->addr, &map->mod);
 	if (map->func == NULL)
 		return NULL;
 
@@ -662,18 +662,18 @@ static int printk_cmp(const void *a, const void *b)
 	return 0;
 }
 
-static int printk_map_init(struct tep_handle *pevent)
+static int printk_map_init(struct tep_handle *tep)
 {
 	struct printk_list *printklist;
 	struct printk_list *item;
 	struct printk_map *printk_map;
 	int i;
 
-	printk_map = malloc(sizeof(*printk_map) * (pevent->printk_count + 1));
+	printk_map = malloc(sizeof(*printk_map) * (tep->printk_count + 1));
 	if (!printk_map)
 		return -1;
 
-	printklist = pevent->printklist;
+	printklist = tep->printklist;
 
 	i = 0;
 	while (printklist) {
@@ -685,27 +685,27 @@ static int printk_map_init(struct tep_handle *pevent)
 		free(item);
 	}
 
-	qsort(printk_map, pevent->printk_count, sizeof(*printk_map), printk_cmp);
+	qsort(printk_map, tep->printk_count, sizeof(*printk_map), printk_cmp);
 
-	pevent->printk_map = printk_map;
-	pevent->printklist = NULL;
+	tep->printk_map = printk_map;
+	tep->printklist = NULL;
 
 	return 0;
 }
 
 static struct printk_map *
-find_printk(struct tep_handle *pevent, unsigned long long addr)
+find_printk(struct tep_handle *tep, unsigned long long addr)
 {
 	struct printk_map *printk;
 	struct printk_map key;
 
-	if (!pevent->printk_map && printk_map_init(pevent))
+	if (!tep->printk_map && printk_map_init(tep))
 		return NULL;
 
 	key.addr = addr;
 
-	printk = bsearch(&key, pevent->printk_map, pevent->printk_count,
-			 sizeof(*pevent->printk_map), printk_cmp);
+	printk = bsearch(&key, tep->printk_map, tep->printk_count,
+			 sizeof(*tep->printk_map), printk_cmp);
 
 	return printk;
 }
@@ -782,29 +782,29 @@ static struct tep_event *alloc_event(void)
 	return calloc(1, sizeof(struct tep_event));
 }
 
-static int add_event(struct tep_handle *pevent, struct tep_event *event)
+static int add_event(struct tep_handle *tep, struct tep_event *event)
 {
 	int i;
-	struct tep_event **events = realloc(pevent->events, sizeof(event) *
-					    (pevent->nr_events + 1));
+	struct tep_event **events = realloc(tep->events, sizeof(event) *
+					    (tep->nr_events + 1));
 	if (!events)
 		return -1;
 
-	pevent->events = events;
+	tep->events = events;
 
-	for (i = 0; i < pevent->nr_events; i++) {
-		if (pevent->events[i]->id > event->id)
+	for (i = 0; i < tep->nr_events; i++) {
+		if (tep->events[i]->id > event->id)
 			break;
 	}
-	if (i < pevent->nr_events)
-		memmove(&pevent->events[i + 1],
-			&pevent->events[i],
-			sizeof(event) * (pevent->nr_events - i));
+	if (i < tep->nr_events)
+		memmove(&tep->events[i + 1],
+			&tep->events[i],
+			sizeof(event) * (tep->nr_events - i));
 
-	pevent->events[i] = event;
-	pevent->nr_events++;
+	tep->events[i] = event;
+	tep->nr_events++;
 
-	event->tep = pevent;
+	event->tep = tep;
 
 	return 0;
 }
@@ -2941,14 +2941,14 @@ process_bitmask(struct tep_event *event __maybe_unused, struct tep_print_arg *ar
 }
 
 static struct tep_function_handler *
-find_func_handler(struct tep_handle *pevent, char *func_name)
+find_func_handler(struct tep_handle *tep, char *func_name)
 {
 	struct tep_function_handler *func;
 
-	if (!pevent)
+	if (!tep)
 		return NULL;
 
-	for (func = pevent->func_handlers; func; func = func->next) {
+	for (func = tep->func_handlers; func; func = func->next) {
 		if (strcmp(func->name, func_name) == 0)
 			break;
 	}
@@ -2956,12 +2956,12 @@ find_func_handler(struct tep_handle *pevent, char *func_name)
 	return func;
 }
 
-static void remove_func_handler(struct tep_handle *pevent, char *func_name)
+static void remove_func_handler(struct tep_handle *tep, char *func_name)
 {
 	struct tep_function_handler *func;
 	struct tep_function_handler **next;
 
-	next = &pevent->func_handlers;
+	next = &tep->func_handlers;
 	while ((func = *next)) {
 		if (strcmp(func->name, func_name) == 0) {
 			*next = func->next;
@@ -3413,7 +3413,7 @@ int tep_read_number_field(struct tep_format_field *field, const void *data,
 	}
 }
 
-static int get_common_info(struct tep_handle *pevent,
+static int get_common_info(struct tep_handle *tep,
 			   const char *type, int *offset, int *size)
 {
 	struct tep_event *event;
@@ -3423,12 +3423,12 @@ static int get_common_info(struct tep_handle *pevent,
 	 * All events should have the same common elements.
 	 * Pick any event to find where the type is;
 	 */
-	if (!pevent->events) {
+	if (!tep->events) {
 		do_warning("no event_list!");
 		return -1;
 	}
 
-	event = pevent->events[0];
+	event = tep->events[0];
 	field = tep_find_common_field(event, type);
 	if (!field)
 		return -1;
@@ -3439,58 +3439,58 @@ static int get_common_info(struct tep_handle *pevent,
 	return 0;
 }
 
-static int __parse_common(struct tep_handle *pevent, void *data,
+static int __parse_common(struct tep_handle *tep, void *data,
 			  int *size, int *offset, const char *name)
 {
 	int ret;
 
 	if (!*size) {
-		ret = get_common_info(pevent, name, offset, size);
+		ret = get_common_info(tep, name, offset, size);
 		if (ret < 0)
 			return ret;
 	}
-	return tep_read_number(pevent, data + *offset, *size);
+	return tep_read_number(tep, data + *offset, *size);
 }
 
-static int trace_parse_common_type(struct tep_handle *pevent, void *data)
+static int trace_parse_common_type(struct tep_handle *tep, void *data)
 {
-	return __parse_common(pevent, data,
-			      &pevent->type_size, &pevent->type_offset,
+	return __parse_common(tep, data,
+			      &tep->type_size, &tep->type_offset,
 			      "common_type");
 }
 
-static int parse_common_pid(struct tep_handle *pevent, void *data)
+static int parse_common_pid(struct tep_handle *tep, void *data)
 {
-	return __parse_common(pevent, data,
-			      &pevent->pid_size, &pevent->pid_offset,
+	return __parse_common(tep, data,
+			      &tep->pid_size, &tep->pid_offset,
 			      "common_pid");
 }
 
-static int parse_common_pc(struct tep_handle *pevent, void *data)
+static int parse_common_pc(struct tep_handle *tep, void *data)
 {
-	return __parse_common(pevent, data,
-			      &pevent->pc_size, &pevent->pc_offset,
+	return __parse_common(tep, data,
+			      &tep->pc_size, &tep->pc_offset,
 			      "common_preempt_count");
 }
 
-static int parse_common_flags(struct tep_handle *pevent, void *data)
+static int parse_common_flags(struct tep_handle *tep, void *data)
 {
-	return __parse_common(pevent, data,
-			      &pevent->flags_size, &pevent->flags_offset,
+	return __parse_common(tep, data,
+			      &tep->flags_size, &tep->flags_offset,
 			      "common_flags");
 }
 
-static int parse_common_lock_depth(struct tep_handle *pevent, void *data)
+static int parse_common_lock_depth(struct tep_handle *tep, void *data)
 {
-	return __parse_common(pevent, data,
-			      &pevent->ld_size, &pevent->ld_offset,
+	return __parse_common(tep, data,
+			      &tep->ld_size, &tep->ld_offset,
 			      "common_lock_depth");
 }
 
-static int parse_common_migrate_disable(struct tep_handle *pevent, void *data)
+static int parse_common_migrate_disable(struct tep_handle *tep, void *data)
 {
-	return __parse_common(pevent, data,
-			      &pevent->ld_size, &pevent->ld_offset,
+	return __parse_common(tep, data,
+			      &tep->ld_size, &tep->ld_offset,
 			      "common_migrate_disable");
 }
 
@@ -3566,7 +3566,7 @@ tep_find_event_by_name(struct tep_handle *tep,
 static unsigned long long
 eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg *arg)
 {
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	unsigned long long val = 0;
 	unsigned long long left, right;
 	struct tep_print_arg *typearg = NULL;
@@ -3588,7 +3588,7 @@ eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg
 			
 		}
 		/* must be a number */
-		val = tep_read_number(pevent, data + arg->field.field->offset,
+		val = tep_read_number(tep, data + arg->field.field->offset,
 				      arg->field.field->size);
 		break;
 	case TEP_PRINT_FLAGS:
@@ -3628,11 +3628,11 @@ eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg
 			}
 
 			/* Default to long size */
-			field_size = pevent->long_size;
+			field_size = tep->long_size;
 
 			switch (larg->type) {
 			case TEP_PRINT_DYNAMIC_ARRAY:
-				offset = tep_read_number(pevent,
+				offset = tep_read_number(tep,
 						   data + larg->dynarray.field->offset,
 						   larg->dynarray.field->size);
 				if (larg->dynarray.field->elementsize)
@@ -3661,7 +3661,7 @@ eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg
 			default:
 				goto default_op; /* oops, all bets off */
 			}
-			val = tep_read_number(pevent,
+			val = tep_read_number(tep,
 					      data + offset, field_size);
 			if (typearg)
 				val = eval_type(val, typearg, 1);
@@ -3762,7 +3762,7 @@ eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg
 		}
 		break;
 	case TEP_PRINT_DYNAMIC_ARRAY_LEN:
-		offset = tep_read_number(pevent,
+		offset = tep_read_number(tep,
 					 data + arg->dynarray.field->offset,
 					 arg->dynarray.field->size);
 		/*
@@ -3774,7 +3774,7 @@ eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg
 		break;
 	case TEP_PRINT_DYNAMIC_ARRAY:
 		/* Without [], we pass the address to the dynamic data */
-		offset = tep_read_number(pevent,
+		offset = tep_read_number(tep,
 					 data + arg->dynarray.field->offset,
 					 arg->dynarray.field->size);
 		/*
@@ -3849,7 +3849,7 @@ static void print_str_to_seq(struct trace_seq *s, const char *format,
 		trace_seq_printf(s, format, str);
 }
 
-static void print_bitmask_to_seq(struct tep_handle *pevent,
+static void print_bitmask_to_seq(struct tep_handle *tep,
 				 struct trace_seq *s, const char *format,
 				 int len_arg, const void *data, int size)
 {
@@ -3881,7 +3881,7 @@ static void print_bitmask_to_seq(struct tep_handle *pevent,
 		 * In the kernel, this is an array of long words, thus
 		 * endianness is very important.
 		 */
-		if (pevent->file_bigendian)
+		if (tep->file_bigendian)
 			index = size - (len + 1);
 		else
 			index = len;
@@ -3907,7 +3907,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 			  struct tep_event *event, const char *format,
 			  int len_arg, struct tep_print_arg *arg)
 {
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	struct tep_print_flag_sym *flag;
 	struct tep_format_field *field;
 	struct printk_map *printk;
@@ -3944,7 +3944,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 		 * is a pointer.
 		 */
 		if (!(field->flags & TEP_FIELD_IS_ARRAY) &&
-		    field->size == pevent->long_size) {
+		    field->size == tep->long_size) {
 
 			/* Handle heterogeneous recording and processing
 			 * architectures
@@ -3959,12 +3959,12 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 			 * on 32-bit devices:
 			 * In this case, 64 bits must be read.
 			 */
-			addr = (pevent->long_size == 8) ?
+			addr = (tep->long_size == 8) ?
 				*(unsigned long long *)(data + field->offset) :
 				(unsigned long long)*(unsigned int *)(data + field->offset);
 
 			/* Check if it matches a print format */
-			printk = find_printk(pevent, addr);
+			printk = find_printk(tep, addr);
 			if (printk)
 				trace_seq_puts(s, printk->printk);
 			else
@@ -4021,7 +4021,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 	case TEP_PRINT_HEX_STR:
 		if (arg->hex.field->type == TEP_PRINT_DYNAMIC_ARRAY) {
 			unsigned long offset;
-			offset = tep_read_number(pevent,
+			offset = tep_read_number(tep,
 				data + arg->hex.field->dynarray.field->offset,
 				arg->hex.field->dynarray.field->size);
 			hex = data + (offset & 0xffff);
@@ -4052,7 +4052,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 			unsigned long offset;
 			struct tep_format_field *field =
 				arg->int_array.field->dynarray.field;
-			offset = tep_read_number(pevent,
+			offset = tep_read_number(tep,
 						 data + field->offset,
 						 field->size);
 			num = data + (offset & 0xffff);
@@ -4103,7 +4103,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 			f = tep_find_any_field(event, arg->string.string);
 			arg->string.offset = f->offset;
 		}
-		str_offset = tep_data2host4(pevent, *(unsigned int *)(data + arg->string.offset));
+		str_offset = tep_data2host4(tep, *(unsigned int *)(data + arg->string.offset));
 		str_offset &= 0xffff;
 		print_str_to_seq(s, format, len_arg, ((char *)data) + str_offset);
 		break;
@@ -4121,10 +4121,10 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 			f = tep_find_any_field(event, arg->bitmask.bitmask);
 			arg->bitmask.offset = f->offset;
 		}
-		bitmask_offset = tep_data2host4(pevent, *(unsigned int *)(data + arg->bitmask.offset));
+		bitmask_offset = tep_data2host4(tep, *(unsigned int *)(data + arg->bitmask.offset));
 		bitmask_size = bitmask_offset >> 16;
 		bitmask_offset &= 0xffff;
-		print_bitmask_to_seq(pevent, s, format, len_arg,
+		print_bitmask_to_seq(tep, s, format, len_arg,
 				     data + bitmask_offset, bitmask_size);
 		break;
 	}
@@ -4256,7 +4256,7 @@ static void free_args(struct tep_print_arg *args)
 
 static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, struct tep_event *event)
 {
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	struct tep_format_field *field, *ip_field;
 	struct tep_print_arg *args, *arg, **next;
 	unsigned long long ip, val;
@@ -4264,8 +4264,8 @@ static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, s
 	void *bptr;
 	int vsize = 0;
 
-	field = pevent->bprint_buf_field;
-	ip_field = pevent->bprint_ip_field;
+	field = tep->bprint_buf_field;
+	ip_field = tep->bprint_ip_field;
 
 	if (!field) {
 		field = tep_find_field(event, "buf");
@@ -4278,11 +4278,11 @@ static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, s
 			do_warning_event(event, "can't find ip field for binary printk");
 			return NULL;
 		}
-		pevent->bprint_buf_field = field;
-		pevent->bprint_ip_field = ip_field;
+		tep->bprint_buf_field = field;
+		tep->bprint_ip_field = ip_field;
 	}
 
-	ip = tep_read_number(pevent, data + ip_field->offset, ip_field->size);
+	ip = tep_read_number(tep, data + ip_field->offset, ip_field->size);
 
 	/*
 	 * The first arg is the IP pointer.
@@ -4359,7 +4359,7 @@ static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, s
 					vsize = 4;
 					break;
 				case 1:
-					vsize = pevent->long_size;
+					vsize = tep->long_size;
 					break;
 				case 2:
 					vsize = 8;
@@ -4376,7 +4376,7 @@ static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, s
 				/* the pointers are always 4 bytes aligned */
 				bptr = (void *)(((unsigned long)bptr + 3) &
 						~3);
-				val = tep_read_number(pevent, bptr, vsize);
+				val = tep_read_number(tep, bptr, vsize);
 				bptr += vsize;
 				arg = alloc_arg();
 				if (!arg) {
@@ -4433,13 +4433,13 @@ static char *
 get_bprint_format(void *data, int size __maybe_unused,
 		  struct tep_event *event)
 {
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	unsigned long long addr;
 	struct tep_format_field *field;
 	struct printk_map *printk;
 	char *format;
 
-	field = pevent->bprint_fmt_field;
+	field = tep->bprint_fmt_field;
 
 	if (!field) {
 		field = tep_find_field(event, "fmt");
@@ -4447,12 +4447,12 @@ get_bprint_format(void *data, int size __maybe_unused,
 			do_warning_event(event, "can't find format field for binary printk");
 			return NULL;
 		}
-		pevent->bprint_fmt_field = field;
+		tep->bprint_fmt_field = field;
 	}
 
-	addr = tep_read_number(pevent, data + field->offset, field->size);
+	addr = tep_read_number(tep, data + field->offset, field->size);
 
-	printk = find_printk(pevent, addr);
+	printk = find_printk(tep, addr);
 	if (!printk) {
 		if (asprintf(&format, "%%pf: (NO FORMAT FOUND at %llx)\n", addr) < 0)
 			return NULL;
@@ -4834,13 +4834,13 @@ void tep_print_field(struct trace_seq *s, void *data,
 {
 	unsigned long long val;
 	unsigned int offset, len, i;
-	struct tep_handle *pevent = field->event->tep;
+	struct tep_handle *tep = field->event->tep;
 
 	if (field->flags & TEP_FIELD_IS_ARRAY) {
 		offset = field->offset;
 		len = field->size;
 		if (field->flags & TEP_FIELD_IS_DYNAMIC) {
-			val = tep_read_number(pevent, data + offset, len);
+			val = tep_read_number(tep, data + offset, len);
 			offset = val;
 			len = offset >> 16;
 			offset &= 0xffff;
@@ -4860,7 +4860,7 @@ void tep_print_field(struct trace_seq *s, void *data,
 			field->flags &= ~TEP_FIELD_IS_STRING;
 		}
 	} else {
-		val = tep_read_number(pevent, data + field->offset,
+		val = tep_read_number(tep, data + field->offset,
 				      field->size);
 		if (field->flags & TEP_FIELD_IS_POINTER) {
 			trace_seq_printf(s, "0x%llx", val);
@@ -4909,7 +4909,7 @@ void tep_print_fields(struct trace_seq *s, void *data,
 
 static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_event *event)
 {
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	struct tep_print_fmt *print_fmt = &event->print_fmt;
 	struct tep_print_arg *arg = print_fmt->args;
 	struct tep_print_arg *args = NULL;
@@ -5001,7 +5001,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_e
 			case '-':
 				goto cont_process;
 			case 'p':
-				if (pevent->long_size == 4)
+				if (tep->long_size == 4)
 					ls = 1;
 				else
 					ls = 2;
@@ -5062,7 +5062,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_e
 				arg = arg->next;
 
 				if (show_func) {
-					func = find_func(pevent, val);
+					func = find_func(tep, val);
 					if (func) {
 						trace_seq_puts(s, func->func);
 						if (show_func == 'F')
@@ -5072,7 +5072,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_e
 						break;
 					}
 				}
-				if (pevent->long_size == 8 && ls == 1 &&
+				if (tep->long_size == 8 && ls == 1 &&
 				    sizeof(long) != 8) {
 					char *p;
 
@@ -5319,14 +5319,14 @@ const char *tep_data_comm_from_pid(struct tep_handle *tep, int pid)
 }
 
 static struct tep_cmdline *
-pid_from_cmdlist(struct tep_handle *pevent, const char *comm, struct tep_cmdline *next)
+pid_from_cmdlist(struct tep_handle *tep, const char *comm, struct tep_cmdline *next)
 {
 	struct cmdline_list *cmdlist = (struct cmdline_list *)next;
 
 	if (cmdlist)
 		cmdlist = cmdlist->next;
 	else
-		cmdlist = pevent->cmdlist;
+		cmdlist = tep->cmdlist;
 
 	while (cmdlist && strcmp(cmdlist->comm, comm) != 0)
 		cmdlist = cmdlist->next;
@@ -6012,11 +6012,11 @@ static void free_handler(struct event_handler *handle)
 	free(handle);
 }
 
-static int find_event_handle(struct tep_handle *pevent, struct tep_event *event)
+static int find_event_handle(struct tep_handle *tep, struct tep_event *event)
 {
 	struct event_handler *handle, **next;
 
-	for (next = &pevent->handlers; *next;
+	for (next = &tep->handlers; *next;
 	     next = &(*next)->next) {
 		handle = *next;
 		if (event_matches(event, handle->id,
@@ -6054,7 +6054,7 @@ static int find_event_handle(struct tep_handle *pevent, struct tep_event *event)
  * /sys/kernel/debug/tracing/events/.../.../format
  */
 enum tep_errno __tep_parse_format(struct tep_event **eventp,
-				  struct tep_handle *pevent, const char *buf,
+				  struct tep_handle *tep, const char *buf,
 				  unsigned long size, const char *sys)
 {
 	struct tep_event *event;
@@ -6096,8 +6096,8 @@ enum tep_errno __tep_parse_format(struct tep_event **eventp,
 		goto event_alloc_failed;
 	}
 
-	/* Add pevent to event so that it can be referenced */
-	event->tep = pevent;
+	/* Add tep to event so that it can be referenced */
+	event->tep = tep;
 
 	ret = event_read_format(event);
 	if (ret < 0) {
@@ -6109,7 +6109,7 @@ enum tep_errno __tep_parse_format(struct tep_event **eventp,
 	 * If the event has an override, don't print warnings if the event
 	 * print format fails to parse.
 	 */
-	if (pevent && find_event_handle(pevent, event))
+	if (tep && find_event_handle(tep, event))
 		show_warning = 0;
 
 	ret = event_read_print(event);
@@ -6161,18 +6161,18 @@ enum tep_errno __tep_parse_format(struct tep_event **eventp,
 }
 
 static enum tep_errno
-__parse_event(struct tep_handle *pevent,
+__parse_event(struct tep_handle *tep,
 	      struct tep_event **eventp,
 	      const char *buf, unsigned long size,
 	      const char *sys)
 {
-	int ret = __tep_parse_format(eventp, pevent, buf, size, sys);
+	int ret = __tep_parse_format(eventp, tep, buf, size, sys);
 	struct tep_event *event = *eventp;
 
 	if (event == NULL)
 		return ret;
 
-	if (pevent && add_event(pevent, event)) {
+	if (tep && add_event(tep, event)) {
 		ret = TEP_ERRNO__MEM_ALLOC_FAILED;
 		goto event_add_failed;
 	}
@@ -6426,7 +6426,7 @@ int tep_print_func_field(struct trace_seq *s, const char *fmt,
 			 struct tep_record *record, int err)
 {
 	struct tep_format_field *field = tep_find_field(event, name);
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	unsigned long long val;
 	struct func_map *func;
 	char tmp[128];
@@ -6437,7 +6437,7 @@ int tep_print_func_field(struct trace_seq *s, const char *fmt,
 	if (tep_read_number_field(field, record->data, &val))
 		goto failed;
 
-	func = find_func(pevent, val);
+	func = find_func(tep, val);
 
 	if (func)
 		snprintf(tmp, 128, "%s/0x%llx", func->func, func->addr - val);
@@ -6582,7 +6582,7 @@ int tep_unregister_print_function(struct tep_handle *tep,
 	return -1;
 }
 
-static struct tep_event *search_event(struct tep_handle *pevent, int id,
+static struct tep_event *search_event(struct tep_handle *tep, int id,
 				      const char *sys_name,
 				      const char *event_name)
 {
@@ -6590,7 +6590,7 @@ static struct tep_event *search_event(struct tep_handle *pevent, int id,
 
 	if (id >= 0) {
 		/* search by id */
-		event = tep_find_event(pevent, id);
+		event = tep_find_event(tep, id);
 		if (!event)
 			return NULL;
 		if (event_name && (strcmp(event_name, event->name) != 0))
@@ -6598,7 +6598,7 @@ static struct tep_event *search_event(struct tep_handle *pevent, int id,
 		if (sys_name && (strcmp(sys_name, event->system) != 0))
 			return NULL;
 	} else {
-		event = tep_find_event_by_name(pevent, sys_name, event_name);
+		event = tep_find_event_by_name(tep, sys_name, event_name);
 		if (!event)
 			return NULL;
 	}
@@ -6755,14 +6755,14 @@ int tep_unregister_event_handler(struct tep_handle *tep, int id,
  */
 struct tep_handle *tep_alloc(void)
 {
-	struct tep_handle *pevent = calloc(1, sizeof(*pevent));
+	struct tep_handle *tep = calloc(1, sizeof(*tep));
 
-	if (pevent) {
-		pevent->ref_count = 1;
-		pevent->host_bigendian = tep_is_bigendian();
+	if (tep) {
+		tep->ref_count = 1;
+		tep->host_bigendian = tep_is_bigendian();
 	}
 
-	return pevent;
+	return tep;
 }
 
 void tep_ref(struct tep_handle *tep)
diff --git a/tools/lib/traceevent/event-plugin.c b/tools/lib/traceevent/event-plugin.c
index d0488de0174a..8ca28de9337a 100644
--- a/tools/lib/traceevent/event-plugin.c
+++ b/tools/lib/traceevent/event-plugin.c
@@ -269,7 +269,7 @@ void tep_print_plugins(struct trace_seq *s,
 }
 
 static void
-load_plugin(struct tep_handle *pevent, const char *path,
+load_plugin(struct tep_handle *tep, const char *path,
 	    const char *file, void *data)
 {
 	struct tep_plugin_list **plugin_list = data;
@@ -316,7 +316,7 @@ load_plugin(struct tep_handle *pevent, const char *path,
 	*plugin_list = list;
 
 	pr_stat("registering plugin: %s", plugin);
-	func(pevent);
+	func(tep);
 	return;
 
  out_free:
@@ -324,9 +324,9 @@ load_plugin(struct tep_handle *pevent, const char *path,
 }
 
 static void
-load_plugins_dir(struct tep_handle *pevent, const char *suffix,
+load_plugins_dir(struct tep_handle *tep, const char *suffix,
 		 const char *path,
-		 void (*load_plugin)(struct tep_handle *pevent,
+		 void (*load_plugin)(struct tep_handle *tep,
 				     const char *path,
 				     const char *name,
 				     void *data),
@@ -359,15 +359,15 @@ load_plugins_dir(struct tep_handle *pevent, const char *suffix,
 		if (strcmp(name + (strlen(name) - strlen(suffix)), suffix) != 0)
 			continue;
 
-		load_plugin(pevent, path, name, data);
+		load_plugin(tep, path, name, data);
 	}
 
 	closedir(dir);
 }
 
 static void
-load_plugins(struct tep_handle *pevent, const char *suffix,
-	     void (*load_plugin)(struct tep_handle *pevent,
+load_plugins(struct tep_handle *tep, const char *suffix,
+	     void (*load_plugin)(struct tep_handle *tep,
 				 const char *path,
 				 const char *name,
 				 void *data),
@@ -378,7 +378,7 @@ load_plugins(struct tep_handle *pevent, const char *suffix,
 	char *envdir;
 	int ret;
 
-	if (pevent->flags & TEP_DISABLE_PLUGINS)
+	if (tep->flags & TEP_DISABLE_PLUGINS)
 		return;
 
 	/*
@@ -386,8 +386,8 @@ load_plugins(struct tep_handle *pevent, const char *suffix,
 	 * check that first.
 	 */
 #ifdef PLUGIN_DIR
-	if (!(pevent->flags & TEP_DISABLE_SYS_PLUGINS))
-		load_plugins_dir(pevent, suffix, PLUGIN_DIR,
+	if (!(tep->flags & TEP_DISABLE_SYS_PLUGINS))
+		load_plugins_dir(tep, suffix, PLUGIN_DIR,
 				 load_plugin, data);
 #endif
 
@@ -397,7 +397,7 @@ load_plugins(struct tep_handle *pevent, const char *suffix,
 	 */
 	envdir = getenv("TRACEEVENT_PLUGIN_DIR");
 	if (envdir)
-		load_plugins_dir(pevent, suffix, envdir, load_plugin, data);
+		load_plugins_dir(tep, suffix, envdir, load_plugin, data);
 
 	/*
 	 * Now let the home directory override the environment
@@ -413,7 +413,7 @@ load_plugins(struct tep_handle *pevent, const char *suffix,
 		return;
 	}
 
-	load_plugins_dir(pevent, suffix, path, load_plugin, data);
+	load_plugins_dir(tep, suffix, path, load_plugin, data);
 
 	free(path);
 }
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index 1d2f1343090d..298694356277 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -256,7 +256,7 @@ static int event_match(struct tep_event *event,
 }
 
 static enum tep_errno
-find_event(struct tep_handle *pevent, struct event_list **events,
+find_event(struct tep_handle *tep, struct event_list **events,
 	   char *sys_name, char *event_name)
 {
 	struct tep_event *event;
@@ -299,8 +299,8 @@ find_event(struct tep_handle *pevent, struct event_list **events,
 		}
 	}
 
-	for (i = 0; i < pevent->nr_events; i++) {
-		event = pevent->events[i];
+	for (i = 0; i < tep->nr_events; i++) {
+		event = tep->events[i];
 		if (event_match(event, sys_name ? &sreg : NULL, &ereg)) {
 			match = 1;
 			if (add_event(events, event) < 0) {
@@ -1257,7 +1257,7 @@ static void filter_init_error_buf(struct tep_event_filter *filter)
 enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
 					 const char *filter_str)
 {
-	struct tep_handle *pevent = filter->tep;
+	struct tep_handle *tep = filter->tep;
 	struct event_list *event;
 	struct event_list *events = NULL;
 	const char *filter_start;
@@ -1313,7 +1313,7 @@ enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
 		}
 
 		/* Find this event */
-		ret = find_event(pevent, &events, strim(sys_name), strim(event_name));
+		ret = find_event(tep, &events, strim(sys_name), strim(event_name));
 		if (ret < 0) {
 			free_events(events);
 			free(this_event);
@@ -1334,7 +1334,7 @@ enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
 		if (ret < 0)
 			rtn = ret;
 
-		if (ret >= 0 && pevent->test_filters) {
+		if (ret >= 0 && tep->test_filters) {
 			char *test;
 			test = tep_filter_make_string(filter, event->event->id);
 			if (test) {
@@ -1346,7 +1346,7 @@ enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
 
 	free_events(events);
 
-	if (rtn >= 0 && pevent->test_filters)
+	if (rtn >= 0 && tep->test_filters)
 		exit(0);
 
 	return rtn;
@@ -1462,7 +1462,7 @@ static int copy_filter_type(struct tep_event_filter *filter,
 	const char *name;
 	char *str;
 
-	/* Can't assume that the pevent's are the same */
+	/* Can't assume that the tep's are the same */
 	sys = filter_type->event->system;
 	name = filter_type->event->name;
 	event = tep_find_event_by_name(filter->tep, sys, name);
@@ -1700,7 +1700,7 @@ static int test_num(struct tep_event *event, struct tep_filter_arg *arg,
 static const char *get_field_str(struct tep_filter_arg *arg, struct tep_record *record)
 {
 	struct tep_event *event;
-	struct tep_handle *pevent;
+	struct tep_handle *tep;
 	unsigned long long addr;
 	const char *val = NULL;
 	unsigned int size;
@@ -1730,12 +1730,12 @@ static const char *get_field_str(struct tep_filter_arg *arg, struct tep_record *
 
 	} else {
 		event = arg->str.field->event;
-		pevent = event->tep;
+		tep = event->tep;
 		addr = get_value(event, arg->str.field, record);
 
 		if (arg->str.field->flags & (TEP_FIELD_IS_POINTER | TEP_FIELD_IS_LONG))
 			/* convert to a kernel symbol */
-			val = tep_find_function(pevent, addr);
+			val = tep_find_function(tep, addr);
 
 		if (val == NULL) {
 			/* just use the hex of the string name */
@@ -1875,7 +1875,7 @@ int tep_event_filtered(struct tep_event_filter *filter, int event_id)
 enum tep_errno tep_filter_match(struct tep_event_filter *filter,
 				struct tep_record *record)
 {
-	struct tep_handle *pevent = filter->tep;
+	struct tep_handle *tep = filter->tep;
 	struct tep_filter_type *filter_type;
 	int event_id;
 	int ret;
@@ -1886,7 +1886,7 @@ enum tep_errno tep_filter_match(struct tep_event_filter *filter,
 	if (!filter->filters)
 		return TEP_ERRNO__NO_FILTER;
 
-	event_id = tep_data_type(pevent, record);
+	event_id = tep_data_type(tep, record);
 
 	filter_type = find_filter_type(filter, event_id);
 	if (!filter_type)
diff --git a/tools/lib/traceevent/plugin_function.c b/tools/lib/traceevent/plugin_function.c
index d6a8df060614..7770fcb78e0f 100644
--- a/tools/lib/traceevent/plugin_function.c
+++ b/tools/lib/traceevent/plugin_function.c
@@ -126,7 +126,7 @@ static int add_and_get_index(const char *parent, const char *child, int cpu)
 static int function_handler(struct trace_seq *s, struct tep_record *record,
 			    struct tep_event *event, void *context)
 {
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	unsigned long long function;
 	unsigned long long pfunction;
 	const char *func;
@@ -136,12 +136,12 @@ static int function_handler(struct trace_seq *s, struct tep_record *record,
 	if (tep_get_field_val(s, event, "ip", record, &function, 1))
 		return trace_seq_putc(s, '!');
 
-	func = tep_find_function(pevent, function);
+	func = tep_find_function(tep, function);
 
 	if (tep_get_field_val(s, event, "parent_ip", record, &pfunction, 1))
 		return trace_seq_putc(s, '!');
 
-	parent = tep_find_function(pevent, pfunction);
+	parent = tep_find_function(tep, pfunction);
 
 	if (parent && ftrace_indent->set)
 		index = add_and_get_index(parent, func, record->cpu);
-- 
2.20.1


^ permalink raw reply	[flat|nested] 55+ messages in thread

* Re: [PATCH v2 1/5] tools/perf,tools/lib/traceevent: Make traceevent APIs more consistent
  2019-03-27 14:19 ` [PATCH v2 1/5] tools/perf,tools/lib/traceevent: Make traceevent APIs " Tzvetomir Stoyanov
@ 2019-03-27 14:41   ` Steven Rostedt
  0 siblings, 0 replies; 55+ messages in thread
From: Steven Rostedt @ 2019-03-27 14:41 UTC (permalink / raw)
  To: Tzvetomir Stoyanov; +Cc: linux-trace-devel, linux-kernel

On Wed, 27 Mar 2019 16:19:42 +0200
Tzvetomir Stoyanov <tstoyanov@vmware.com> wrote:

> /**
> - * tep_file_bigendian - get if the file is in big endian order
> + * tep_is_file_bigendian - return the endian of the file
>   * @pevent: a handle to the tep_handle
>   *
> - * This returns if the file is in big endian order
> - * If @pevent is NULL, 0 is returned.
> + * This returns true if the file is in big endian order
> + * If @pevent is NULL, false is returned.
>   */
> -int tep_file_bigendian(struct tep_handle *pevent)
> +bool tep_is_file_bigendian(struct tep_handle *pevent)
>  {
>  	if (pevent)
> -		return pevent->file_bigendian;
> -	return 0;
> +		return (pevent->file_bigendian == TEP_BIG_ENDIAN);

One thing I should have mentioned before, is that, when people write
returns like this to the Linux kernel mailing list, you might get a
comment like: "return is not a function, lose the parenthesis". 

That is, it should be:

	return pevent->file_bigendian == TEP_BIG_ENDIAN;

not

	return (pevent->file_bigendian == TEP_BIG_ENDIAN);

If this is the only issue, I may just fix it myself. Just remember that
returns should never have an outside parenthesis.

-- Steve


> +	return false;
>  }
>  

^ permalink raw reply	[flat|nested] 55+ messages in thread

* Re: [PATCH v2 2/5] tools/lib/traceevent: Rename input arguments of libtraceevent APIs from pevent to tep
  2019-03-27 14:19 ` [PATCH v2 2/5] tools/lib/traceevent: Rename input arguments of libtraceevent APIs from pevent to tep Tzvetomir Stoyanov
@ 2019-03-27 15:06   ` Steven Rostedt
  0 siblings, 0 replies; 55+ messages in thread
From: Steven Rostedt @ 2019-03-27 15:06 UTC (permalink / raw)
  To: Tzvetomir Stoyanov; +Cc: linux-trace-devel, linux-kernel

On Wed, 27 Mar 2019 16:19:43 +0200
Tzvetomir Stoyanov <tstoyanov@vmware.com> wrote:

> This patch renames "struct tep_handle *pevent" input arguments of libtraceevent
> APIs to "struct tep_handle *tep". This makes the API consistent with the chosen
> naming convention: tep (trace event parser), instead of the old pevent.
> 
> Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
> ---
>  tools/lib/traceevent/event-parse-api.c     | 132 +++---
>  tools/lib/traceevent/event-parse-local.h   |   6 +-
>  tools/lib/traceevent/event-parse.c         | 473 ++++++++++-----------
>  tools/lib/traceevent/event-parse.h         | 120 +++---
>  tools/lib/traceevent/event-plugin.c        |   8 +-
>  tools/lib/traceevent/parse-filter.c        |   8 +-
>  tools/lib/traceevent/plugin_cfg80211.c     |   8 +-
>  tools/lib/traceevent/plugin_function.c     |   8 +-
>  tools/lib/traceevent/plugin_hrtimer.c      |  12 +-
>  tools/lib/traceevent/plugin_jbd2.c         |  12 +-
>  tools/lib/traceevent/plugin_kmem.c         |  28 +-
>  tools/lib/traceevent/plugin_kvm.c          |  44 +-
>  tools/lib/traceevent/plugin_mac80211.c     |   8 +-
>  tools/lib/traceevent/plugin_sched_switch.c |  16 +-
>  tools/lib/traceevent/plugin_scsi.c         |   8 +-
>  tools/lib/traceevent/plugin_xen.c          |   8 +-
>  16 files changed, 449 insertions(+), 450 deletions(-)
> 
>

Can you rebase the rest of these patches off of my repo:

 git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git

 Branch: tip/perf/core

Thanks,

-- Steve

^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH 00/15] tools/lib/traceevent: Continuing on the path to a stand alone library
@ 2019-04-01 16:43 Steven Rostedt
  2019-04-01 16:43 ` [PATCH 01/15] tools lib traceevent: Handle trace_printk() "%px" Steven Rostedt
                   ` (15 more replies)
  0 siblings, 16 replies; 55+ messages in thread
From: Steven Rostedt @ 2019-04-01 16:43 UTC (permalink / raw)
  To: linux-kernel
  Cc: Arnaldo Carvalho de Melo, Ingo Molnar, Jiri Olsa, Namhyung Kim,
	Andrew Morton, Tzvetomir Stoyanov


Arnaldo,

These contain more patches to make libtraceevent a stand alone library.
It also brings in some changes that are in the trace-cmd library.

There's a few name changes to the API function names to be more
descriptive as well as closer to what they actually do.

The "pevent" has been renamed to "tep" as we no longer use "pevent"
to represent the handle to the libtraceevent library descriptor.
"tep" now stands for "Trace Event Parser".

The reason for the "(Red Hat)" in one of my patches is that the code
was written when I was working for Red Hat, but added when working
for VMware (which is in the Signed-off-by).

Steven Rostedt (Red Hat) (1):
      tools/lib/traceevent: Add more debugging to see various internal ring buffer entries

Steven Rostedt (VMware) (3):
      tools lib traceevent: Handle trace_printk() "%px"
      tools/lib/traceevent: Add mono clocks to be parsed in seconds
      tools/lib/traceevent: Removed unneeded !! and return parenthesis

Tzvetomir Stoyanov (11):
      tools lib traceevent: Implement a new API, tep_list_events_copy()
      tools/lib/traceevent: Change description of few APIs
      tools/lib/traceevent: Coding style fixes
      tools/lib/traceevent: Implement new traceevent APIs for accessing struct tep_handler fields
      tools/lib/traceevent: Remove tep filter trivial APIs
      tools/lib/traceevent: Remove call to exit() from tep_filter_add_filter_str()
      tools/perf,tools/lib/traceevent: Make traceevent APIs more consistent
      tools/lib/traceevent: Rename input arguments of libtraceevent APIs from pevent to tep
      tools/perf,tools/lib/traceevent: Rename "pevent" member of struct tep_event to "tep"
      tools/perf,tools/lib/traceevent: Rename "pevent" member of struct tep_event_filter to "tep"
      tools/lib/traceevent: Rename input arguments and local variables of libtraceevent from pevent to tep

----
 tools/lib/traceevent/event-parse-api.c             | 278 +++++--
 tools/lib/traceevent/event-parse-local.h           |   6 +-
 tools/lib/traceevent/event-parse.c                 | 909 +++++++++++----------
 tools/lib/traceevent/event-parse.h                 | 154 ++--
 tools/lib/traceevent/event-plugin.c                |  32 +-
 tools/lib/traceevent/kbuffer-parse.c               |  49 ++
 tools/lib/traceevent/kbuffer.h                     |  13 +
 tools/lib/traceevent/parse-filter.c                | 216 +----
 tools/lib/traceevent/plugin_cfg80211.c             |   8 +-
 tools/lib/traceevent/plugin_function.c             |  14 +-
 tools/lib/traceevent/plugin_hrtimer.c              |  12 +-
 tools/lib/traceevent/plugin_jbd2.c                 |  12 +-
 tools/lib/traceevent/plugin_kmem.c                 |  32 +-
 tools/lib/traceevent/plugin_kvm.c                  |  48 +-
 tools/lib/traceevent/plugin_mac80211.c             |   8 +-
 tools/lib/traceevent/plugin_sched_switch.c         |  18 +-
 tools/lib/traceevent/plugin_scsi.c                 |   8 +-
 tools/lib/traceevent/plugin_xen.c                  |   8 +-
 tools/perf/builtin-kmem.c                          |   2 +-
 tools/perf/util/data-convert-bt.c                  |   4 +-
 tools/perf/util/python.c                           |   2 +-
 .../perf/util/scripting-engines/trace-event-perl.c |   2 +-
 .../util/scripting-engines/trace-event-python.c    |   2 +-
 tools/perf/util/trace-event-parse.c                |   2 +-
 tools/perf/util/trace-event-read.c                 |   2 +-
 tools/perf/util/trace-event.c                      |   4 +-
 26 files changed, 946 insertions(+), 899 deletions(-)

^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH 01/15] tools lib traceevent: Handle trace_printk() "%px"
  2019-04-01 16:43 [PATCH 00/15] tools/lib/traceevent: Continuing on the path to a stand alone library Steven Rostedt
@ 2019-04-01 16:43 ` Steven Rostedt
  2019-04-05 11:41   ` [tip:perf/core] " tip-bot for Steven Rostedt (VMware)
  2019-04-01 16:43 ` [PATCH 02/15] tools/lib/traceevent: Add mono clocks to be parsed in seconds Steven Rostedt
                   ` (14 subsequent siblings)
  15 siblings, 1 reply; 55+ messages in thread
From: Steven Rostedt @ 2019-04-01 16:43 UTC (permalink / raw)
  To: linux-kernel
  Cc: Arnaldo Carvalho de Melo, Ingo Molnar, Jiri Olsa, Namhyung Kim,
	Andrew Morton, Tzvetomir Stoyanov

From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>

With security updates, %p in the kernel is hashed to protect true kernel
locations. But trace_printk() is not allowed in production systems, and
when a pointer is used, there are many times that the actual address is
needed. "%px" produces the real address. But libtraceevent does not know how
to handle that extension. Add it.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
 tools/lib/traceevent/event-parse.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 87494c7c619d..2ebb257ce7ba 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -4338,6 +4338,7 @@ static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, s
 					case 'S':
 					case 'f':
 					case 'F':
+					case 'x':
 						break;
 					default:
 						/*
-- 
2.20.1



^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH 02/15] tools/lib/traceevent: Add mono clocks to be parsed in seconds
  2019-04-01 16:43 [PATCH 00/15] tools/lib/traceevent: Continuing on the path to a stand alone library Steven Rostedt
  2019-04-01 16:43 ` [PATCH 01/15] tools lib traceevent: Handle trace_printk() "%px" Steven Rostedt
@ 2019-04-01 16:43 ` Steven Rostedt
  2019-04-05 11:42   ` [tip:perf/core] tools lib traceevent: " tip-bot for Steven Rostedt (VMware)
  2019-04-01 16:43 ` [PATCH 03/15] tools lib traceevent: Implement a new API, tep_list_events_copy() Steven Rostedt
                   ` (13 subsequent siblings)
  15 siblings, 1 reply; 55+ messages in thread
From: Steven Rostedt @ 2019-04-01 16:43 UTC (permalink / raw)
  To: linux-kernel
  Cc: Arnaldo Carvalho de Melo, Ingo Molnar, Jiri Olsa, Namhyung Kim,
	Andrew Morton, Tzvetomir Stoyanov

From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>

The mono clocks can display in seconds instead of whole numbers:

       trace-cmd-521   [001] 99176715281005: sched_waking:         comm=kworker/u16:2 pid=32118 prio=120 target_cpu=002
       trace-cmd-521   [001] 99176715286349: sched_wake_idle_without_ipi: cpu=2
       trace-cmd-521   [001] 99176715288047: sched_wakeup:         kworker/u16:2:32118 [120] success=1 CPU:002
       trace-cmd-521   [001] 99176715290022: sched_waking:         comm=trace-cmd pid=523 prio=120 target_cpu=000
       trace-cmd-521   [001] 99176715292332: sched_wake_idle_without_ipi: cpu=0
       trace-cmd-521   [001] 99176715292855: sched_wakeup:         trace-cmd:523 [120] success=1 CPU:000
       trace-cmd-521   [001] 99176715300697: sched_stat_runtime:   comm=trace-cmd pid=521 runtime=80233 [ns] vruntime=66705540554 [ns

Break it up in seconds:

       trace-cmd-521   [001] 99176.715281: sched_waking:         comm=kworker/u16:2 pid=32118 prio=120 target_cpu=002
       trace-cmd-521   [001] 99176.715286: sched_wake_idle_without_ipi: cpu=2
       trace-cmd-521   [001] 99176.715288: sched_wakeup:         kworker/u16:2:32118 [120] success=1 CPU:002
       trace-cmd-521   [001] 99176.715290: sched_waking:         comm=trace-cmd pid=523 prio=120 target_cpu=000
       trace-cmd-521   [001] 99176.715292: sched_wake_idle_without_ipi: cpu=0
       trace-cmd-521   [001] 99176.715293: sched_wakeup:         trace-cmd:523 [120] success=1 CPU:000
       trace-cmd-521   [001] 99176.715301: sched_stat_runtime:   comm=trace-cmd pid=521 runtime=80233 [ns] vruntime=66705540554 [ns]

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
 tools/lib/traceevent/event-parse.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 2ebb257ce7ba..666e23ded6ed 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -5445,7 +5445,8 @@ static bool is_timestamp_in_us(char *trace_clock, bool use_trace_clock)
 		return true;
 
 	if (!strcmp(trace_clock, "local") || !strcmp(trace_clock, "global")
-	    || !strcmp(trace_clock, "uptime") || !strcmp(trace_clock, "perf"))
+	    || !strcmp(trace_clock, "uptime") || !strcmp(trace_clock, "perf")
+	    || !strncmp(trace_clock, "mono", 4))
 		return true;
 
 	/* trace_clock is setting in tsc or counter mode */
-- 
2.20.1



^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH 03/15] tools lib traceevent: Implement a new API, tep_list_events_copy()
  2019-04-01 16:43 [PATCH 00/15] tools/lib/traceevent: Continuing on the path to a stand alone library Steven Rostedt
  2019-04-01 16:43 ` [PATCH 01/15] tools lib traceevent: Handle trace_printk() "%px" Steven Rostedt
  2019-04-01 16:43 ` [PATCH 02/15] tools/lib/traceevent: Add mono clocks to be parsed in seconds Steven Rostedt
@ 2019-04-01 16:43 ` Steven Rostedt
  2019-04-05 11:42   ` [tip:perf/core] " tip-bot for Tzvetomir Stoyanov
  2019-04-01 16:43 ` [PATCH 04/15] tools/lib/traceevent: Add more debugging to see various internal ring buffer entries Steven Rostedt
                   ` (12 subsequent siblings)
  15 siblings, 1 reply; 55+ messages in thread
From: Steven Rostedt @ 2019-04-01 16:43 UTC (permalink / raw)
  To: linux-kernel
  Cc: Arnaldo Carvalho de Melo, Ingo Molnar, Jiri Olsa, Namhyung Kim,
	Andrew Morton, Tzvetomir Stoyanov

From: Tzvetomir Stoyanov <tstoyanov@vmware.com>

Existing API tep_list_events() is not thread safe, it uses the internal
array sort_events to keep cache of the sorted events and reuses it. This
patch implements a new API, tep_list_events_copy(), which allocates new
sorted array each time it is called. It could be used when a sorted events
functionality is needed in thread safe use cases. It is up to the caller to
free the array.

Link: http://lore.kernel.org/linux-trace-devel/20181218133013.31094-1-tstoyanov@vmware.com

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
 tools/lib/traceevent/event-parse.c | 109 +++++++++++++++++++++++------
 tools/lib/traceevent/event-parse.h |   5 +-
 2 files changed, 91 insertions(+), 23 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 666e23ded6ed..c00aebab3c33 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -5651,32 +5651,26 @@ static int events_system_cmp(const void *a, const void *b)
 	return events_id_cmp(a, b);
 }
 
-struct tep_event **tep_list_events(struct tep_handle *pevent, enum tep_event_sort_type sort_type)
+static struct tep_event **list_events_copy(struct tep_handle *tep)
 {
 	struct tep_event **events;
-	int (*sort)(const void *a, const void *b);
-
-	events = pevent->sort_events;
-
-	if (events && pevent->last_type == sort_type)
-		return events;
 
-	if (!events) {
-		events = malloc(sizeof(*events) * (pevent->nr_events + 1));
-		if (!events)
-			return NULL;
+	if (!tep)
+		return NULL;
 
-		memcpy(events, pevent->events, sizeof(*events) * pevent->nr_events);
-		events[pevent->nr_events] = NULL;
+	events = malloc(sizeof(*events) * (tep->nr_events + 1));
+	if (!events)
+		return NULL;
 
-		pevent->sort_events = events;
+	memcpy(events, tep->events, sizeof(*events) * tep->nr_events);
+	events[tep->nr_events] = NULL;
+	return events;
+}
 
-		/* the internal events are sorted by id */
-		if (sort_type == TEP_EVENT_SORT_ID) {
-			pevent->last_type = sort_type;
-			return events;
-		}
-	}
+static void list_events_sort(struct tep_event **events, int nr_events,
+			     enum tep_event_sort_type sort_type)
+{
+	int (*sort)(const void *a, const void *b);
 
 	switch (sort_type) {
 	case TEP_EVENT_SORT_ID:
@@ -5689,11 +5683,82 @@ struct tep_event **tep_list_events(struct tep_handle *pevent, enum tep_event_sor
 		sort = events_system_cmp;
 		break;
 	default:
+		sort = NULL;
+	}
+
+	if (sort)
+		qsort(events, nr_events, sizeof(*events), sort);
+}
+
+/**
+ * tep_list_events - Get events, sorted by given criteria.
+ * @tep: a handle to the tep context
+ * @sort_type: desired sort order of the events in the array
+ *
+ * Returns an array of pointers to all events, sorted by the given
+ * @sort_type criteria. The last element of the array is NULL. The returned
+ * memory must not be freed, it is managed by the library.
+ * The function is not thread safe.
+ */
+struct tep_event **tep_list_events(struct tep_handle *tep,
+				   enum tep_event_sort_type sort_type)
+{
+	struct tep_event **events;
+
+	if (!tep)
+		return NULL;
+
+	events = tep->sort_events;
+	if (events && tep->last_type == sort_type)
 		return events;
+
+	if (!events) {
+		events = list_events_copy(tep);
+		if (!events)
+			return NULL;
+
+		tep->sort_events = events;
+
+		/* the internal events are sorted by id */
+		if (sort_type == TEP_EVENT_SORT_ID) {
+			tep->last_type = sort_type;
+			return events;
+		}
 	}
 
-	qsort(events, pevent->nr_events, sizeof(*events), sort);
-	pevent->last_type = sort_type;
+	list_events_sort(events, tep->nr_events, sort_type);
+	tep->last_type = sort_type;
+
+	return events;
+}
+
+
+/**
+ * tep_list_events_copy - Thread safe version of tep_list_events()
+ * @tep: a handle to the tep context
+ * @sort_type: desired sort order of the events in the array
+ *
+ * Returns an array of pointers to all events, sorted by the given
+ * @sort_type criteria. The last element of the array is NULL. The returned
+ * array is newly allocated inside the function and must be freed by the caller
+ */
+struct tep_event **tep_list_events_copy(struct tep_handle *tep,
+					enum tep_event_sort_type sort_type)
+{
+	struct tep_event **events;
+
+	if (!tep)
+		return NULL;
+
+	events = list_events_copy(tep);
+	if (!events)
+		return NULL;
+
+	/* the internal events are sorted by id */
+	if (sort_type == TEP_EVENT_SORT_ID)
+		return events;
+
+	list_events_sort(events, tep->nr_events, sort_type);
 
 	return events;
 }
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index aec48f2aea8a..41159358abc2 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -544,7 +544,10 @@ void tep_event_info(struct trace_seq *s, struct tep_event *event,
 int tep_strerror(struct tep_handle *pevent, enum tep_errno errnum,
 		 char *buf, size_t buflen);
 
-struct tep_event **tep_list_events(struct tep_handle *pevent, enum tep_event_sort_type);
+struct tep_event **tep_list_events(struct tep_handle *tep,
+				   enum tep_event_sort_type);
+struct tep_event **tep_list_events_copy(struct tep_handle *tep,
+					enum tep_event_sort_type);
 struct tep_format_field **tep_event_common_fields(struct tep_event *event);
 struct tep_format_field **tep_event_fields(struct tep_event *event);
 
-- 
2.20.1



^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH 04/15] tools/lib/traceevent: Add more debugging to see various internal ring buffer entries
  2019-04-01 16:43 [PATCH 00/15] tools/lib/traceevent: Continuing on the path to a stand alone library Steven Rostedt
                   ` (2 preceding siblings ...)
  2019-04-01 16:43 ` [PATCH 03/15] tools lib traceevent: Implement a new API, tep_list_events_copy() Steven Rostedt
@ 2019-04-01 16:43 ` Steven Rostedt
  2019-04-05 11:43   ` [tip:perf/core] tools lib traceevent: " tip-bot for Steven Rostedt (Red Hat)
  2019-04-01 16:43 ` [PATCH 05/15] tools/lib/traceevent: Change description of few APIs Steven Rostedt
                   ` (11 subsequent siblings)
  15 siblings, 1 reply; 55+ messages in thread
From: Steven Rostedt @ 2019-04-01 16:43 UTC (permalink / raw)
  To: linux-kernel
  Cc: Arnaldo Carvalho de Melo, Ingo Molnar, Jiri Olsa, Namhyung Kim,
	Andrew Morton, Tzvetomir Stoyanov

From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>

When trace-cmd report --debug is set, show the internal ring buffer entries
like time-extends and padding. This requires adding new kbuffer API to
retrieve these items.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
 tools/lib/traceevent/kbuffer-parse.c | 49 ++++++++++++++++++++++++++++
 tools/lib/traceevent/kbuffer.h       | 13 ++++++++
 2 files changed, 62 insertions(+)

diff --git a/tools/lib/traceevent/kbuffer-parse.c b/tools/lib/traceevent/kbuffer-parse.c
index af2a1f3b7424..b887e7437d67 100644
--- a/tools/lib/traceevent/kbuffer-parse.c
+++ b/tools/lib/traceevent/kbuffer-parse.c
@@ -727,3 +727,52 @@ int kbuffer_start_of_data(struct kbuffer *kbuf)
 {
 	return kbuf->start;
 }
+
+/**
+ * kbuffer_raw_get - get raw buffer info
+ * @kbuf:	The kbuffer
+ * @subbuf:	Start of mapped subbuffer
+ * @info:	Info descriptor to fill in
+ *
+ * For debugging. This can return internals of the ring buffer.
+ * Expects to have info->next set to what it will read.
+ * The type, length and timestamp delta will be filled in, and
+ * @info->next will be updated to the next element.
+ * The @subbuf is used to know if the info is passed the end of
+ * data and NULL will be returned if it is.
+ */
+struct kbuffer_raw_info *
+kbuffer_raw_get(struct kbuffer *kbuf, void *subbuf, struct kbuffer_raw_info *info)
+{
+	unsigned long long flags;
+	unsigned long long delta;
+	unsigned int type_len;
+	unsigned int size;
+	int start;
+	int length;
+	void *ptr = info->next;
+
+	if (!kbuf || !subbuf)
+		return NULL;
+
+	if (kbuf->flags & KBUFFER_FL_LONG_8)
+		start = 16;
+	else
+		start = 12;
+
+	flags = read_long(kbuf, subbuf + 8);
+	size = (unsigned int)flags & COMMIT_MASK;
+
+	if (ptr < subbuf || ptr >= subbuf + start + size)
+		return NULL;
+
+	type_len = translate_data(kbuf, ptr, &ptr, &delta, &length);
+
+	info->next = ptr + length;
+
+	info->type = type_len;
+	info->delta = delta;
+	info->length = length;
+
+	return info;
+}
diff --git a/tools/lib/traceevent/kbuffer.h b/tools/lib/traceevent/kbuffer.h
index 03dce757553f..ed4d697fc137 100644
--- a/tools/lib/traceevent/kbuffer.h
+++ b/tools/lib/traceevent/kbuffer.h
@@ -65,4 +65,17 @@ int kbuffer_subbuffer_size(struct kbuffer *kbuf);
 void kbuffer_set_old_format(struct kbuffer *kbuf);
 int kbuffer_start_of_data(struct kbuffer *kbuf);
 
+/* Debugging */
+
+struct kbuffer_raw_info {
+	int			type;
+	int			length;
+	unsigned long long	delta;
+	void			*next;
+};
+
+/* Read raw data */
+struct kbuffer_raw_info *kbuffer_raw_get(struct kbuffer *kbuf, void *subbuf,
+					 struct kbuffer_raw_info *info);
+
 #endif /* _K_BUFFER_H */
-- 
2.20.1



^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH 05/15] tools/lib/traceevent: Change description of few APIs
  2019-04-01 16:43 [PATCH 00/15] tools/lib/traceevent: Continuing on the path to a stand alone library Steven Rostedt
                   ` (3 preceding siblings ...)
  2019-04-01 16:43 ` [PATCH 04/15] tools/lib/traceevent: Add more debugging to see various internal ring buffer entries Steven Rostedt
@ 2019-04-01 16:43 ` Steven Rostedt
  2019-04-05 11:44   ` [tip:perf/core] tools lib traceevent: " tip-bot for Tzvetomir Stoyanov
  2019-04-01 16:43 ` [PATCH 06/15] tools/lib/traceevent: Coding style fixes Steven Rostedt
                   ` (10 subsequent siblings)
  15 siblings, 1 reply; 55+ messages in thread
From: Steven Rostedt @ 2019-04-01 16:43 UTC (permalink / raw)
  To: linux-kernel
  Cc: Arnaldo Carvalho de Melo, Ingo Molnar, Jiri Olsa, Namhyung Kim,
	Andrew Morton, Tzvetomir Stoyanov

From: Tzvetomir Stoyanov <tstoyanov@vmware.com>

APIs descriptions should describe the purpose of the function, its
parameters and return value. While working  on man pages
implementation, I noticed mismatches in the  descriptions of few APIs.
This patch changes the description of these APIs, making them
consistent with the man pages:

 - tep_print_num_field()
 - tep_print_func_field()
 - tep_get_header_page_size()
 - tep_get_long_size()
 - tep_set_long_size()
 - tep_get_page_size()
 - tep_set_page_size()

Link: http://lore.kernel.org/linux-trace-devel/20190325145017.30246-2-tstoyanov@vmware.com

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
 tools/lib/traceevent/event-parse-api.c | 20 ++++++++++----------
 tools/lib/traceevent/event-parse.c     |  6 ++++--
 2 files changed, 14 insertions(+), 12 deletions(-)

diff --git a/tools/lib/traceevent/event-parse-api.c b/tools/lib/traceevent/event-parse-api.c
index d463761a58f4..3686a221e981 100644
--- a/tools/lib/traceevent/event-parse-api.c
+++ b/tools/lib/traceevent/event-parse-api.c
@@ -43,8 +43,8 @@ int tep_get_events_count(struct tep_handle *tep)
  * @flag: flag, or combination of flags to be set
  * can be any combination from enum tep_flag
  *
- * This sets a flag or mbination of flags  from enum tep_flag
-  */
+ * This sets a flag or combination of flags from enum tep_flag
+ */
 void tep_set_flag(struct tep_handle *tep, int flag)
 {
 	if(tep)
@@ -140,10 +140,10 @@ void tep_set_cpus(struct tep_handle *pevent, int cpus)
 }
 
 /**
- * tep_get_long_size - get the size of a long integer on the current machine
+ * tep_get_long_size - get the size of a long integer on the traced machine
  * @pevent: a handle to the tep_handle
  *
- * This returns the size of a long integer on the current machine
+ * This returns the size of a long integer on the traced machine
  * If @pevent is NULL, 0 is returned.
  */
 int tep_get_long_size(struct tep_handle *pevent)
@@ -154,11 +154,11 @@ int tep_get_long_size(struct tep_handle *pevent)
 }
 
 /**
- * tep_set_long_size - set the size of a long integer on the current machine
+ * tep_set_long_size - set the size of a long integer on the traced machine
  * @pevent: a handle to the tep_handle
  * @size: size, in bytes, of a long integer
  *
- * This sets the size of a long integer on the current machine
+ * This sets the size of a long integer on the traced machine
  */
 void tep_set_long_size(struct tep_handle *pevent, int long_size)
 {
@@ -167,10 +167,10 @@ void tep_set_long_size(struct tep_handle *pevent, int long_size)
 }
 
 /**
- * tep_get_page_size - get the size of a memory page on the current machine
+ * tep_get_page_size - get the size of a memory page on the traced machine
  * @pevent: a handle to the tep_handle
  *
- * This returns the size of a memory page on the current machine
+ * This returns the size of a memory page on the traced machine
  * If @pevent is NULL, 0 is returned.
  */
 int tep_get_page_size(struct tep_handle *pevent)
@@ -181,11 +181,11 @@ int tep_get_page_size(struct tep_handle *pevent)
 }
 
 /**
- * tep_set_page_size - set the size of a memory page on the current machine
+ * tep_set_page_size - set the size of a memory page on the traced machine
  * @pevent: a handle to the tep_handle
  * @_page_size: size of a memory page, in bytes
  *
- * This sets the size of a memory page on the current machine
+ * This sets the size of a memory page on the traced machine
  */
 void tep_set_page_size(struct tep_handle *pevent, int _page_size)
 {
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index c00aebab3c33..000ab7514be7 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -6453,7 +6453,8 @@ int tep_get_any_field_val(struct trace_seq *s, struct tep_event *event,
  * @record: The record with the field name.
  * @err: print default error if failed.
  *
- * Returns: 0 on success, -1 field not found, or 1 if buffer is full.
+ * Returns positive value on success, negative in case of an error,
+ * or 0 if buffer is full.
  */
 int tep_print_num_field(struct trace_seq *s, const char *fmt,
 			struct tep_event *event, const char *name,
@@ -6485,7 +6486,8 @@ int tep_print_num_field(struct trace_seq *s, const char *fmt,
  * @record: The record with the field name.
  * @err: print default error if failed.
  *
- * Returns: 0 on success, -1 field not found, or 1 if buffer is full.
+ * Returns positive value on success, negative in case of an error,
+ * or 0 if buffer is full.
  */
 int tep_print_func_field(struct trace_seq *s, const char *fmt,
 			 struct tep_event *event, const char *name,
-- 
2.20.1



^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH 06/15] tools/lib/traceevent: Coding style fixes
  2019-04-01 16:43 [PATCH 00/15] tools/lib/traceevent: Continuing on the path to a stand alone library Steven Rostedt
                   ` (4 preceding siblings ...)
  2019-04-01 16:43 ` [PATCH 05/15] tools/lib/traceevent: Change description of few APIs Steven Rostedt
@ 2019-04-01 16:43 ` Steven Rostedt
  2019-04-05 11:44   ` [tip:perf/core] tools lib traceevent: " tip-bot for Tzvetomir Stoyanov
  2019-04-01 16:43 ` [PATCH 07/15] tools/lib/traceevent: Implement new traceevent APIs for accessing struct tep_handler fields Steven Rostedt
                   ` (9 subsequent siblings)
  15 siblings, 1 reply; 55+ messages in thread
From: Steven Rostedt @ 2019-04-01 16:43 UTC (permalink / raw)
  To: linux-kernel
  Cc: Arnaldo Carvalho de Melo, Ingo Molnar, Jiri Olsa, Namhyung Kim,
	Andrew Morton, Tzvetomir Stoyanov

From: Tzvetomir Stoyanov <tstoyanov@vmware.com>

Fixed few coding style problems in event-parse-api.c

Link: http://lore.kernel.org/linux-trace-devel/20190325145017.30246-3-tstoyanov@vmware.com

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
 tools/lib/traceevent/event-parse-api.c | 30 +++++++++++++-------------
 1 file changed, 15 insertions(+), 15 deletions(-)

diff --git a/tools/lib/traceevent/event-parse-api.c b/tools/lib/traceevent/event-parse-api.c
index 3686a221e981..3716a9142aef 100644
--- a/tools/lib/traceevent/event-parse-api.c
+++ b/tools/lib/traceevent/event-parse-api.c
@@ -32,7 +32,7 @@ struct tep_event *tep_get_first_event(struct tep_handle *tep)
  */
 int tep_get_events_count(struct tep_handle *tep)
 {
-	if(tep)
+	if (tep)
 		return tep->nr_events;
 	return 0;
 }
@@ -47,7 +47,7 @@ int tep_get_events_count(struct tep_handle *tep)
  */
 void tep_set_flag(struct tep_handle *tep, int flag)
 {
-	if(tep)
+	if (tep)
 		tep->flags |= flag;
 }
 
@@ -108,7 +108,7 @@ tep_data2host8(struct tep_handle *pevent, unsigned long long data)
  */
 int tep_get_header_page_size(struct tep_handle *pevent)
 {
-	if(pevent)
+	if (pevent)
 		return pevent->header_page_size_size;
 	return 0;
 }
@@ -122,7 +122,7 @@ int tep_get_header_page_size(struct tep_handle *pevent)
  */
 int tep_get_cpus(struct tep_handle *pevent)
 {
-	if(pevent)
+	if (pevent)
 		return pevent->cpus;
 	return 0;
 }
@@ -135,7 +135,7 @@ int tep_get_cpus(struct tep_handle *pevent)
  */
 void tep_set_cpus(struct tep_handle *pevent, int cpus)
 {
-	if(pevent)
+	if (pevent)
 		pevent->cpus = cpus;
 }
 
@@ -148,7 +148,7 @@ void tep_set_cpus(struct tep_handle *pevent, int cpus)
  */
 int tep_get_long_size(struct tep_handle *pevent)
 {
-	if(pevent)
+	if (pevent)
 		return pevent->long_size;
 	return 0;
 }
@@ -162,7 +162,7 @@ int tep_get_long_size(struct tep_handle *pevent)
  */
 void tep_set_long_size(struct tep_handle *pevent, int long_size)
 {
-	if(pevent)
+	if (pevent)
 		pevent->long_size = long_size;
 }
 
@@ -175,7 +175,7 @@ void tep_set_long_size(struct tep_handle *pevent, int long_size)
  */
 int tep_get_page_size(struct tep_handle *pevent)
 {
-	if(pevent)
+	if (pevent)
 		return pevent->page_size;
 	return 0;
 }
@@ -189,7 +189,7 @@ int tep_get_page_size(struct tep_handle *pevent)
  */
 void tep_set_page_size(struct tep_handle *pevent, int _page_size)
 {
-	if(pevent)
+	if (pevent)
 		pevent->page_size = _page_size;
 }
 
@@ -202,7 +202,7 @@ void tep_set_page_size(struct tep_handle *pevent, int _page_size)
  */
 int tep_file_bigendian(struct tep_handle *pevent)
 {
-	if(pevent)
+	if (pevent)
 		return pevent->file_bigendian;
 	return 0;
 }
@@ -216,7 +216,7 @@ int tep_file_bigendian(struct tep_handle *pevent)
  */
 void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian)
 {
-	if(pevent)
+	if (pevent)
 		pevent->file_bigendian = endian;
 }
 
@@ -229,7 +229,7 @@ void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian)
  */
 int tep_is_host_bigendian(struct tep_handle *pevent)
 {
-	if(pevent)
+	if (pevent)
 		return pevent->host_bigendian;
 	return 0;
 }
@@ -243,7 +243,7 @@ int tep_is_host_bigendian(struct tep_handle *pevent)
  */
 void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian)
 {
-	if(pevent)
+	if (pevent)
 		pevent->host_bigendian = endian;
 }
 
@@ -256,7 +256,7 @@ void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian)
  */
 int tep_is_latency_format(struct tep_handle *pevent)
 {
-	if(pevent)
+	if (pevent)
 		return pevent->latency_format;
 	return 0;
 }
@@ -270,6 +270,6 @@ int tep_is_latency_format(struct tep_handle *pevent)
   */
 void tep_set_latency_format(struct tep_handle *pevent, int lat)
 {
-	if(pevent)
+	if (pevent)
 		pevent->latency_format = lat;
 }
-- 
2.20.1



^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH 07/15] tools/lib/traceevent: Implement new traceevent APIs for accessing struct tep_handler fields
  2019-04-01 16:43 [PATCH 00/15] tools/lib/traceevent: Continuing on the path to a stand alone library Steven Rostedt
                   ` (5 preceding siblings ...)
  2019-04-01 16:43 ` [PATCH 06/15] tools/lib/traceevent: Coding style fixes Steven Rostedt
@ 2019-04-01 16:43 ` Steven Rostedt
  2019-04-05 11:45   ` [tip:perf/core] tools lib traceevent: " tip-bot for Tzvetomir Stoyanov
  2019-04-01 16:43 ` [PATCH 08/15] tools/lib/traceevent: Removed unneeded !! and return parenthesis Steven Rostedt
                   ` (8 subsequent siblings)
  15 siblings, 1 reply; 55+ messages in thread
From: Steven Rostedt @ 2019-04-01 16:43 UTC (permalink / raw)
  To: linux-kernel
  Cc: Arnaldo Carvalho de Melo, Ingo Molnar, Jiri Olsa, Namhyung Kim,
	Andrew Morton, Tzvetomir Stoyanov

From: Tzvetomir Stoyanov <tstoyanov@vmware.com>

As struct tep_handler definition is not exposed as part of libtraceevent API, its fields
cannot be accessed directly by the library users. This patch implements new APIs, which
can be used to access the struct tep_handler fields:

tep_get_event()        - retrieves an event pointer at a specific index
tep_get_first_event()  - is modified to use tep_get_event()
tep_clear_flag()       - clears a tep handle flag
tep_test_flag()        - test if a given flag is set
tep_get_header_timestamp_size() - returns the size of the timestamp stored
                         in the header.
tep_get_cpus()         - returns the number of CPUs
tep_is_old_format()    - returns true if data was created by an
                         older kernel with the old data format
tep_set_print_raw()    - have the output print in the raw format
tep_set_test_filters() - debugging utility for testing tep filters

Link: http://lore.kernel.org/linux-trace-devel/20190325145017.30246-4-tstoyanov@vmware.com

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
[ Renamed some newly added "pevent" to "tep" ]
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
 tools/lib/traceevent/event-parse-api.c | 106 ++++++++++++++++++++++++-
 tools/lib/traceevent/event-parse.h     |   6 ++
 2 files changed, 108 insertions(+), 4 deletions(-)

diff --git a/tools/lib/traceevent/event-parse-api.c b/tools/lib/traceevent/event-parse-api.c
index 3716a9142aef..2ac8b44854ce 100644
--- a/tools/lib/traceevent/event-parse-api.c
+++ b/tools/lib/traceevent/event-parse-api.c
@@ -8,6 +8,22 @@
 #include "event-parse-local.h"
 #include "event-utils.h"
 
+/**
+ * tep_get_event - returns the event with the given index
+ * @tep: a handle to the tep_handle
+ * @index: index of the requested event, in the range 0 .. nr_events
+ *
+ * This returns pointer to the element of the events array with the given index
+ * If @tep is NULL, or @index is not in the range 0 .. nr_events, NULL is returned.
+ */
+struct tep_event *tep_get_event(struct tep_handle *tep, int index)
+{
+	if (tep && tep->events && index < tep->nr_events)
+		return tep->events[index];
+
+	return NULL;
+}
+
 /**
  * tep_get_first_event - returns the first event in the events array
  * @tep: a handle to the tep_handle
@@ -17,10 +33,7 @@
  */
 struct tep_event *tep_get_first_event(struct tep_handle *tep)
 {
-	if (tep && tep->events)
-		return tep->events[0];
-
-	return NULL;
+	return tep_get_event(tep, 0);
 }
 
 /**
@@ -51,6 +64,34 @@ void tep_set_flag(struct tep_handle *tep, int flag)
 		tep->flags |= flag;
 }
 
+/**
+ * tep_clear_flag - clear event parser flag
+ * @tep: a handle to the tep_handle
+ * @flag: flag to be cleared
+ *
+ * This clears a tep flag
+ */
+void tep_clear_flag(struct tep_handle *tep, enum tep_flag flag)
+{
+	if (tep)
+		tep->flags &= ~flag;
+}
+
+/**
+ * tep_test_flag - check the state of event parser flag
+ * @tep: a handle to the tep_handle
+ * @flag: flag to be checked
+ *
+ * This returns the state of the requested tep flag.
+ * Returns: true if the flag is set, false otherwise.
+ */
+bool tep_test_flag(struct tep_handle *tep, enum tep_flag flag)
+{
+	if (tep)
+		return (tep->flags & flag);
+	return false;
+}
+
 unsigned short tep_data2host2(struct tep_handle *pevent, unsigned short data)
 {
 	unsigned short swap;
@@ -113,6 +154,20 @@ int tep_get_header_page_size(struct tep_handle *pevent)
 	return 0;
 }
 
+/**
+ * tep_get_header_timestamp_size - get size of the time stamp in the header page
+ * @tep: a handle to the tep_handle
+ *
+ * This returns size of the time stamp in the header page
+ * If @tep is NULL, 0 is returned.
+ */
+int tep_get_header_timestamp_size(struct tep_handle *tep)
+{
+	if (tep)
+		return tep->header_page_ts_size;
+	return 0;
+}
+
 /**
  * tep_get_cpus - get the number of CPUs
  * @pevent: a handle to the tep_handle
@@ -273,3 +328,46 @@ void tep_set_latency_format(struct tep_handle *pevent, int lat)
 	if (pevent)
 		pevent->latency_format = lat;
 }
+
+/**
+ * tep_is_old_format - get if an old kernel is used
+ * @tep: a handle to the tep_handle
+ *
+ * This returns true, if an old kernel is used to generate the tracing events or
+ * false if a new kernel is used. Old kernels did not have header page info.
+ * If @tep is NULL, false is returned.
+ */
+bool tep_is_old_format(struct tep_handle *tep)
+{
+	if (tep)
+		return !!(tep->old_format);
+	return false;
+}
+
+/**
+ * tep_set_print_raw - set a flag to force print in raw format
+ * @tep: a handle to the tep_handle
+ * @print_raw: the new value of the print_raw flag
+ *
+ * This sets a flag to force print in raw format
+ */
+void tep_set_print_raw(struct tep_handle *tep, int print_raw)
+{
+	if (tep)
+		tep->print_raw = print_raw;
+}
+
+/**
+ * tep_set_test_filters - set a flag to test a filter string
+ * @tep: a handle to the tep_handle
+ * @test_filters: the new value of the test_filters flag
+ *
+ * This sets a flag to test a filter string. If this flag is set, when
+ * tep_filter_add_filter_str() API as called,it will print the filter string
+ * instead of adding it.
+ */
+void tep_set_test_filters(struct tep_handle *tep, int test_filters)
+{
+	if (tep)
+		tep->test_filters = test_filters;
+}
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 41159358abc2..be082f9692f1 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -409,6 +409,8 @@ void tep_print_plugins(struct trace_seq *s,
 typedef char *(tep_func_resolver_t)(void *priv,
 				    unsigned long long *addrp, char **modp);
 void tep_set_flag(struct tep_handle *tep, int flag);
+void tep_clear_flag(struct tep_handle *tep, enum tep_flag flag);
+bool tep_check_flags(struct tep_handle *tep, enum tep_flag flags);
 
 static inline int tep_host_bigendian(void)
 {
@@ -568,6 +570,10 @@ void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian);
 int tep_is_latency_format(struct tep_handle *pevent);
 void tep_set_latency_format(struct tep_handle *pevent, int lat);
 int tep_get_header_page_size(struct tep_handle *pevent);
+int tep_get_header_timestamp_size(struct tep_handle *tep);
+bool tep_is_old_format(struct tep_handle *tep);
+void tep_set_print_raw(struct tep_handle *tep, int print_raw);
+void tep_set_test_filters(struct tep_handle *tep, int test_filters);
 
 struct tep_handle *tep_alloc(void);
 void tep_free(struct tep_handle *pevent);
-- 
2.20.1



^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH 08/15] tools/lib/traceevent: Removed unneeded !! and return parenthesis
  2019-04-01 16:43 [PATCH 00/15] tools/lib/traceevent: Continuing on the path to a stand alone library Steven Rostedt
                   ` (6 preceding siblings ...)
  2019-04-01 16:43 ` [PATCH 07/15] tools/lib/traceevent: Implement new traceevent APIs for accessing struct tep_handler fields Steven Rostedt
@ 2019-04-01 16:43 ` Steven Rostedt
  2019-04-05 11:46   ` [tip:perf/core] tools lib traceevent: " tip-bot for Steven Rostedt (VMware)
  2019-04-01 16:43 ` [PATCH 09/15] tools/lib/traceevent: Remove tep filter trivial APIs Steven Rostedt
                   ` (7 subsequent siblings)
  15 siblings, 1 reply; 55+ messages in thread
From: Steven Rostedt @ 2019-04-01 16:43 UTC (permalink / raw)
  To: linux-kernel
  Cc: Arnaldo Carvalho de Melo, Ingo Molnar, Jiri Olsa, Namhyung Kim,
	Andrew Morton, Tzvetomir Stoyanov

From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>

As return is not a function we do not need parenthesis around the return
value. Also, a function returning bool does not need to add !!.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
 tools/lib/traceevent/event-parse-api.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/lib/traceevent/event-parse-api.c b/tools/lib/traceevent/event-parse-api.c
index 2ac8b44854ce..002b3f73862b 100644
--- a/tools/lib/traceevent/event-parse-api.c
+++ b/tools/lib/traceevent/event-parse-api.c
@@ -88,7 +88,7 @@ void tep_clear_flag(struct tep_handle *tep, enum tep_flag flag)
 bool tep_test_flag(struct tep_handle *tep, enum tep_flag flag)
 {
 	if (tep)
-		return (tep->flags & flag);
+		return tep->flags & flag;
 	return false;
 }
 
@@ -340,7 +340,7 @@ void tep_set_latency_format(struct tep_handle *pevent, int lat)
 bool tep_is_old_format(struct tep_handle *tep)
 {
 	if (tep)
-		return !!(tep->old_format);
+		return tep->old_format;
 	return false;
 }
 
-- 
2.20.1



^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH 09/15] tools/lib/traceevent: Remove tep filter trivial APIs
  2019-04-01 16:43 [PATCH 00/15] tools/lib/traceevent: Continuing on the path to a stand alone library Steven Rostedt
                   ` (7 preceding siblings ...)
  2019-04-01 16:43 ` [PATCH 08/15] tools/lib/traceevent: Removed unneeded !! and return parenthesis Steven Rostedt
@ 2019-04-01 16:43 ` Steven Rostedt
  2019-04-05 11:47   ` [tip:perf/core] tools lib traceevent: " tip-bot for Tzvetomir Stoyanov
  2019-04-01 16:43 ` [PATCH 10/15] tools/lib/traceevent: Remove call to exit() from tep_filter_add_filter_str() Steven Rostedt
                   ` (6 subsequent siblings)
  15 siblings, 1 reply; 55+ messages in thread
From: Steven Rostedt @ 2019-04-01 16:43 UTC (permalink / raw)
  To: linux-kernel
  Cc: Arnaldo Carvalho de Melo, Ingo Molnar, Jiri Olsa, Namhyung Kim,
	Andrew Morton, Tzvetomir Stoyanov

From: Tzvetomir Stoyanov <tstoyanov@vmware.com>

This patch removes trivial filter tep APIs:
 enum tep_filter_trivial_type
 tep_filter_event_has_trivial()
 tep_update_trivial()
 tep_filter_clear_trivial()

Trivial filters is an optimization, used only in the first
version of KernelShark. The API is deprecated, the next KernelShark
release does not use it.

Link: http://lkml.kernel.org/r/20190326154328.28718-4-tstoyanov@vmware.com

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
 tools/lib/traceevent/event-parse.h  |  16 ---
 tools/lib/traceevent/parse-filter.c | 169 ----------------------------
 2 files changed, 185 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index be082f9692f1..3833d1384599 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -732,12 +732,6 @@ struct tep_event_filter *tep_filter_alloc(struct tep_handle *pevent);
 #define FILTER_MISS		TEP_ERRNO__FILTER_MISS
 #define FILTER_MATCH		TEP_ERRNO__FILTER_MATCH
 
-enum tep_filter_trivial_type {
-	TEP_FILTER_TRIVIAL_FALSE,
-	TEP_FILTER_TRIVIAL_TRUE,
-	TEP_FILTER_TRIVIAL_BOTH,
-};
-
 enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
 					 const char *filter_str);
 
@@ -752,9 +746,6 @@ int tep_event_filtered(struct tep_event_filter *filter,
 
 void tep_filter_reset(struct tep_event_filter *filter);
 
-int tep_filter_clear_trivial(struct tep_event_filter *filter,
-			     enum tep_filter_trivial_type type);
-
 void tep_filter_free(struct tep_event_filter *filter);
 
 char *tep_filter_make_string(struct tep_event_filter *filter, int event_id);
@@ -762,15 +753,8 @@ char *tep_filter_make_string(struct tep_event_filter *filter, int event_id);
 int tep_filter_remove_event(struct tep_event_filter *filter,
 			    int event_id);
 
-int tep_filter_event_has_trivial(struct tep_event_filter *filter,
-				 int event_id,
-				 enum tep_filter_trivial_type type);
-
 int tep_filter_copy(struct tep_event_filter *dest, struct tep_event_filter *source);
 
-int tep_update_trivial(struct tep_event_filter *dest, struct tep_event_filter *source,
-			enum tep_filter_trivial_type type);
-
 int tep_filter_compare(struct tep_event_filter *filter1, struct tep_event_filter *filter2);
 
 #endif /* _PARSE_EVENTS_H */
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index cb5ce66dab6e..4ffd8b25a852 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -1522,167 +1522,6 @@ int tep_filter_copy(struct tep_event_filter *dest, struct tep_event_filter *sour
 	return ret;
 }
 
-
-/**
- * tep_update_trivial - update the trivial filters with the given filter
- * @dest - the filter to update
- * @source - the filter as the source of the update
- * @type - the type of trivial filter to update.
- *
- * Scan dest for trivial events matching @type to replace with the source.
- *
- * Returns 0 on success and -1 if there was a problem updating, but
- *   events may have still been updated on error.
- */
-int tep_update_trivial(struct tep_event_filter *dest, struct tep_event_filter *source,
-		       enum tep_filter_trivial_type type)
-{
-	struct tep_handle *src_pevent;
-	struct tep_handle *dest_pevent;
-	struct tep_event *event;
-	struct tep_filter_type *filter_type;
-	struct tep_filter_arg *arg;
-	char *str;
-	int i;
-
-	src_pevent = source->pevent;
-	dest_pevent = dest->pevent;
-
-	/* Do nothing if either of the filters has nothing to filter */
-	if (!dest->filters || !source->filters)
-		return 0;
-
-	for (i = 0; i < dest->filters; i++) {
-		filter_type = &dest->event_filters[i];
-		arg = filter_type->filter;
-		if (arg->type != TEP_FILTER_ARG_BOOLEAN)
-			continue;
-		if ((arg->boolean.value && type == TEP_FILTER_TRIVIAL_FALSE) ||
-		    (!arg->boolean.value && type == TEP_FILTER_TRIVIAL_TRUE))
-			continue;
-
-		event = filter_type->event;
-
-		if (src_pevent != dest_pevent) {
-			/* do a look up */
-			event = tep_find_event_by_name(src_pevent,
-						       event->system,
-						       event->name);
-			if (!event)
-				return -1;
-		}
-
-		str = tep_filter_make_string(source, event->id);
-		if (!str)
-			continue;
-
-		/* Don't bother if the filter is trivial too */
-		if (strcmp(str, "TRUE") != 0 && strcmp(str, "FALSE") != 0)
-			filter_event(dest, event, str, NULL);
-		free(str);
-	}
-	return 0;
-}
-
-/**
- * tep_filter_clear_trivial - clear TRUE and FALSE filters
- * @filter: the filter to remove trivial filters from
- * @type: remove only true, false, or both
- *
- * Removes filters that only contain a TRUE or FALES boolean arg.
- *
- * Returns 0 on success and -1 if there was a problem.
- */
-int tep_filter_clear_trivial(struct tep_event_filter *filter,
-			     enum tep_filter_trivial_type type)
-{
-	struct tep_filter_type *filter_type;
-	int count = 0;
-	int *ids = NULL;
-	int i;
-
-	if (!filter->filters)
-		return 0;
-
-	/*
-	 * Two steps, first get all ids with trivial filters.
-	 *  then remove those ids.
-	 */
-	for (i = 0; i < filter->filters; i++) {
-		int *new_ids;
-
-		filter_type = &filter->event_filters[i];
-		if (filter_type->filter->type != TEP_FILTER_ARG_BOOLEAN)
-			continue;
-		switch (type) {
-		case TEP_FILTER_TRIVIAL_FALSE:
-			if (filter_type->filter->boolean.value)
-				continue;
-			break;
-		case TEP_FILTER_TRIVIAL_TRUE:
-			if (!filter_type->filter->boolean.value)
-				continue;
-		default:
-			break;
-		}
-
-		new_ids = realloc(ids, sizeof(*ids) * (count + 1));
-		if (!new_ids) {
-			free(ids);
-			return -1;
-		}
-
-		ids = new_ids;
-		ids[count++] = filter_type->event_id;
-	}
-
-	if (!count)
-		return 0;
-
-	for (i = 0; i < count; i++)
-		tep_filter_remove_event(filter, ids[i]);
-
-	free(ids);
-	return 0;
-}
-
-/**
- * tep_filter_event_has_trivial - return true event contains trivial filter
- * @filter: the filter with the information
- * @event_id: the id of the event to test
- * @type: trivial type to test for (TRUE, FALSE, EITHER)
- *
- * Returns 1 if the event contains a matching trivial type
- *  otherwise 0.
- */
-int tep_filter_event_has_trivial(struct tep_event_filter *filter,
-				 int event_id,
-				 enum tep_filter_trivial_type type)
-{
-	struct tep_filter_type *filter_type;
-
-	if (!filter->filters)
-		return 0;
-
-	filter_type = find_filter_type(filter, event_id);
-
-	if (!filter_type)
-		return 0;
-
-	if (filter_type->filter->type != TEP_FILTER_ARG_BOOLEAN)
-		return 0;
-
-	switch (type) {
-	case TEP_FILTER_TRIVIAL_FALSE:
-		return !filter_type->filter->boolean.value;
-
-	case TEP_FILTER_TRIVIAL_TRUE:
-		return filter_type->filter->boolean.value;
-	default:
-		return 1;
-	}
-}
-
 static int test_filter(struct tep_event *event, struct tep_filter_arg *arg,
 		       struct tep_record *record, enum tep_errno *err);
 
@@ -2409,14 +2248,6 @@ int tep_filter_compare(struct tep_event_filter *filter1, struct tep_event_filter
 			break;
 		if (filter_type1->filter->type != filter_type2->filter->type)
 			break;
-		switch (filter_type1->filter->type) {
-		case TEP_FILTER_TRIVIAL_FALSE:
-		case TEP_FILTER_TRIVIAL_TRUE:
-			/* trivial types just need the type compared */
-			continue;
-		default:
-			break;
-		}
 		/* The best way to compare complex filters is with strings */
 		str1 = arg_to_str(filter1, filter_type1->filter);
 		str2 = arg_to_str(filter2, filter_type2->filter);
-- 
2.20.1



^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH 10/15] tools/lib/traceevent: Remove call to exit() from tep_filter_add_filter_str()
  2019-04-01 16:43 [PATCH 00/15] tools/lib/traceevent: Continuing on the path to a stand alone library Steven Rostedt
                   ` (8 preceding siblings ...)
  2019-04-01 16:43 ` [PATCH 09/15] tools/lib/traceevent: Remove tep filter trivial APIs Steven Rostedt
@ 2019-04-01 16:43 ` Steven Rostedt
  2019-04-05 11:47   ` [tip:perf/core] tools lib traceevent: " tip-bot for Tzvetomir Stoyanov
  2019-04-01 16:43 ` [PATCH 11/15] tools/perf,tools/lib/traceevent: Make traceevent APIs more consistent Steven Rostedt
                   ` (5 subsequent siblings)
  15 siblings, 1 reply; 55+ messages in thread
From: Steven Rostedt @ 2019-04-01 16:43 UTC (permalink / raw)
  To: linux-kernel
  Cc: Arnaldo Carvalho de Melo, Ingo Molnar, Jiri Olsa, Namhyung Kim,
	Andrew Morton, Tzvetomir Stoyanov

From: Tzvetomir Stoyanov <tstoyanov@vmware.com>

This patch removes call to exit() from tep_filter_add_filter_str(). A library
function should not force the application to exit. In the current implementation
tep_filter_add_filter_str() calls exit() when a special "test_filters" mode is
set, used only for debugging purposes. When this mode is set and a filter is
added - its string is printed to the console and exit() is called. This patch
changes the logic - when in "test_filters" mode, the filter string is still
printed, but the exit() is not called. It is up to the application to track when
"test_filters" mode is set and to call exit, if needed.

Link: http://lkml.kernel.org/r/20190326154328.28718-9-tstoyanov@vmware.com

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
 tools/lib/traceevent/parse-filter.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index 4ffd8b25a852..3320c0a0e343 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -1346,9 +1346,6 @@ enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
 
 	free_events(events);
 
-	if (rtn >= 0 && pevent->test_filters)
-		exit(0);
-
 	return rtn;
 }
 
-- 
2.20.1



^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH 11/15] tools/perf,tools/lib/traceevent: Make traceevent APIs more consistent
  2019-04-01 16:43 [PATCH 00/15] tools/lib/traceevent: Continuing on the path to a stand alone library Steven Rostedt
                   ` (9 preceding siblings ...)
  2019-04-01 16:43 ` [PATCH 10/15] tools/lib/traceevent: Remove call to exit() from tep_filter_add_filter_str() Steven Rostedt
@ 2019-04-01 16:43 ` Steven Rostedt
  2019-04-05 11:48   ` [tip:perf/core] tools tools, tools lib traceevent: " tip-bot for Tzvetomir Stoyanov
  2019-04-01 16:43 ` [PATCH 12/15] tools/lib/traceevent: Rename input arguments of libtraceevent APIs from pevent to tep Steven Rostedt
                   ` (4 subsequent siblings)
  15 siblings, 1 reply; 55+ messages in thread
From: Steven Rostedt @ 2019-04-01 16:43 UTC (permalink / raw)
  To: linux-kernel
  Cc: Arnaldo Carvalho de Melo, Ingo Molnar, Jiri Olsa, Namhyung Kim,
	Andrew Morton, Tzvetomir Stoyanov

From: Tzvetomir Stoyanov <tstoyanov@vmware.com>

Rename some traceevent APIs for consistency:

tep_pid_is_registered() to tep_is_pid_registered()
tep_file_bigendian() to tep_is_file_bigendian()
  to make the names and return values consistent with other tep_is_... APIs

tep_data_lat_fmt() to tep_data_latency_format()
  to make the name more descriptive

tep_host_bigendian() to tep_is_bigendian()
tep_set_host_bigendian() to tep_set_local_bigendian()
tep_is_host_bigendian() to tep_is_local_bigendian()
  "host" can be confused with VMs, and "local" is about the local
  machine. All tep_is_..._bigendian(struct tep_handle *tep) APIs return
  the saved data in the tep handle, while tep_is_bigendian() returns
  the running machine's endianness.

All tep_is_... functions are modified to return bool value, instead of int.

Link: http://lkml.kernel.org/r/20190327141946.4353-2-tstoyanov@vmware.com

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
[ Removed some extra parenthesis around return statements ]
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
 tools/lib/traceevent/event-parse-api.c | 40 +++++++++++++-------------
 tools/lib/traceevent/event-parse.c     | 26 ++++++++---------
 tools/lib/traceevent/event-parse.h     | 16 +++++------
 tools/lib/traceevent/plugin_kvm.c      |  4 +--
 tools/perf/util/trace-event-read.c     |  2 +-
 tools/perf/util/trace-event.c          |  4 +--
 6 files changed, 46 insertions(+), 46 deletions(-)

diff --git a/tools/lib/traceevent/event-parse-api.c b/tools/lib/traceevent/event-parse-api.c
index 002b3f73862b..f7184575f0d9 100644
--- a/tools/lib/traceevent/event-parse-api.c
+++ b/tools/lib/traceevent/event-parse-api.c
@@ -155,10 +155,10 @@ int tep_get_header_page_size(struct tep_handle *pevent)
 }
 
 /**
- * tep_get_header_timestamp_size - get size of the time stamp in the header page
+ * tep_get_header_timestamp_size - get size of the timestamp in the header page
  * @tep: a handle to the tep_handle
  *
- * This returns size of the time stamp in the header page
+ * This returns size of the timestamp in the header page
  * If @tep is NULL, 0 is returned.
  */
 int tep_get_header_timestamp_size(struct tep_handle *tep)
@@ -249,17 +249,17 @@ void tep_set_page_size(struct tep_handle *pevent, int _page_size)
 }
 
 /**
- * tep_file_bigendian - get if the file is in big endian order
+ * tep_is_file_bigendian - return the endian of the file
  * @pevent: a handle to the tep_handle
  *
- * This returns if the file is in big endian order
- * If @pevent is NULL, 0 is returned.
+ * This returns true if the file is in big endian order
+ * If @pevent is NULL, false is returned.
  */
-int tep_file_bigendian(struct tep_handle *pevent)
+bool tep_is_file_bigendian(struct tep_handle *pevent)
 {
 	if (pevent)
-		return pevent->file_bigendian;
-	return 0;
+		return pevent->file_bigendian == TEP_BIG_ENDIAN;
+	return false;
 }
 
 /**
@@ -276,27 +276,27 @@ void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian)
 }
 
 /**
- * tep_is_host_bigendian - get if the order of the current host is big endian
+ * tep_is_local_bigendian - return the endian of the saved local machine
  * @pevent: a handle to the tep_handle
  *
- * This gets if the order of the current host is big endian
- * If @pevent is NULL, 0 is returned.
+ * This returns true if the saved local machine in @pevent is big endian.
+ * If @pevent is NULL, false is returned.
  */
-int tep_is_host_bigendian(struct tep_handle *pevent)
+bool tep_is_local_bigendian(struct tep_handle *pevent)
 {
 	if (pevent)
-		return pevent->host_bigendian;
+		return pevent->host_bigendian == TEP_BIG_ENDIAN;
 	return 0;
 }
 
 /**
- * tep_set_host_bigendian - set the order of the local host
+ * tep_set_local_bigendian - set the stored local machine endian order
  * @pevent: a handle to the tep_handle
  * @endian: non zero, if the local host has big endian order
  *
- * This sets the order of the local host
+ * This sets the endian order for the local machine.
  */
-void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian)
+void tep_set_local_bigendian(struct tep_handle *pevent, enum tep_endian endian)
 {
 	if (pevent)
 		pevent->host_bigendian = endian;
@@ -306,14 +306,14 @@ void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian)
  * tep_is_latency_format - get if the latency output format is configured
  * @pevent: a handle to the tep_handle
  *
- * This gets if the latency output format is configured
- * If @pevent is NULL, 0 is returned.
+ * This returns true if the latency output format is configured
+ * If @pevent is NULL, false is returned.
  */
-int tep_is_latency_format(struct tep_handle *pevent)
+bool tep_is_latency_format(struct tep_handle *pevent)
 {
 	if (pevent)
 		return pevent->latency_format;
-	return 0;
+	return false;
 }
 
 /**
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 000ab7514be7..8836702122be 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -199,23 +199,23 @@ static const char *find_cmdline(struct tep_handle *pevent, int pid)
 }
 
 /**
- * tep_pid_is_registered - return if a pid has a cmdline registered
+ * tep_is_pid_registered - return if a pid has a cmdline registered
  * @pevent: handle for the pevent
  * @pid: The pid to check if it has a cmdline registered with.
  *
- * Returns 1 if the pid has a cmdline mapped to it
- * 0 otherwise.
+ * Returns true if the pid has a cmdline mapped to it
+ * false otherwise.
  */
-int tep_pid_is_registered(struct tep_handle *pevent, int pid)
+bool tep_is_pid_registered(struct tep_handle *pevent, int pid)
 {
 	const struct tep_cmdline *comm;
 	struct tep_cmdline key;
 
 	if (!pid)
-		return 1;
+		return true;
 
 	if (!pevent->cmdlines && cmdline_init(pevent))
-		return 0;
+		return false;
 
 	key.pid = pid;
 
@@ -223,8 +223,8 @@ int tep_pid_is_registered(struct tep_handle *pevent, int pid)
 		       sizeof(*pevent->cmdlines), cmdline_cmp);
 
 	if (comm)
-		return 1;
-	return 0;
+		return true;
+	return false;
 }
 
 /*
@@ -5172,7 +5172,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_e
 }
 
 /**
- * tep_data_lat_fmt - parse the data for the latency format
+ * tep_data_latency_format - parse the data for the latency format
  * @pevent: a handle to the pevent
  * @s: the trace_seq to write to
  * @record: the record to read from
@@ -5181,8 +5181,8 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_e
  * need rescheduling, in hard/soft interrupt, preempt count
  * and lock depth) and places it into the trace_seq.
  */
-void tep_data_lat_fmt(struct tep_handle *pevent,
-		      struct trace_seq *s, struct tep_record *record)
+void tep_data_latency_format(struct tep_handle *pevent,
+			     struct trace_seq *s, struct tep_record *record)
 {
 	static int check_lock_depth = 1;
 	static int check_migrate_disable = 1;
@@ -5532,7 +5532,7 @@ void tep_print_event_time(struct tep_handle *pevent, struct trace_seq *s,
 	}
 
 	if (pevent->latency_format) {
-		tep_data_lat_fmt(pevent, s, record);
+		tep_data_latency_format(pevent, s, record);
 	}
 
 	if (use_usec_format) {
@@ -6827,7 +6827,7 @@ struct tep_handle *tep_alloc(void)
 
 	if (pevent) {
 		pevent->ref_count = 1;
-		pevent->host_bigendian = tep_host_bigendian();
+		pevent->host_bigendian = tep_is_bigendian();
 	}
 
 	return pevent;
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 3833d1384599..d473dc557978 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -412,7 +412,7 @@ void tep_set_flag(struct tep_handle *tep, int flag);
 void tep_clear_flag(struct tep_handle *tep, enum tep_flag flag);
 bool tep_check_flags(struct tep_handle *tep, enum tep_flag flags);
 
-static inline int tep_host_bigendian(void)
+static inline int tep_is_bigendian(void)
 {
 	unsigned char str[] = { 0x1, 0x2, 0x3, 0x4 };
 	unsigned int val;
@@ -440,7 +440,7 @@ int tep_register_function(struct tep_handle *pevent, char *name,
 			  unsigned long long addr, char *mod);
 int tep_register_print_string(struct tep_handle *pevent, const char *fmt,
 			      unsigned long long addr);
-int tep_pid_is_registered(struct tep_handle *pevent, int pid);
+bool tep_is_pid_registered(struct tep_handle *pevent, int pid);
 
 void tep_print_event_task(struct tep_handle *pevent, struct trace_seq *s,
 			  struct tep_event *event,
@@ -525,8 +525,8 @@ tep_find_event_by_name(struct tep_handle *pevent, const char *sys, const char *n
 struct tep_event *
 tep_find_event_by_record(struct tep_handle *pevent, struct tep_record *record);
 
-void tep_data_lat_fmt(struct tep_handle *pevent,
-		      struct trace_seq *s, struct tep_record *record);
+void tep_data_latency_format(struct tep_handle *pevent,
+			     struct trace_seq *s, struct tep_record *record);
 int tep_data_type(struct tep_handle *pevent, struct tep_record *rec);
 int tep_data_pid(struct tep_handle *pevent, struct tep_record *rec);
 int tep_data_preempt_count(struct tep_handle *pevent, struct tep_record *rec);
@@ -563,11 +563,11 @@ int tep_get_long_size(struct tep_handle *pevent);
 void tep_set_long_size(struct tep_handle *pevent, int long_size);
 int tep_get_page_size(struct tep_handle *pevent);
 void tep_set_page_size(struct tep_handle *pevent, int _page_size);
-int tep_file_bigendian(struct tep_handle *pevent);
+bool tep_is_file_bigendian(struct tep_handle *pevent);
 void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian);
-int tep_is_host_bigendian(struct tep_handle *pevent);
-void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian);
-int tep_is_latency_format(struct tep_handle *pevent);
+bool tep_is_local_bigendian(struct tep_handle *pevent);
+void tep_set_local_bigendian(struct tep_handle *pevent, enum tep_endian endian);
+bool tep_is_latency_format(struct tep_handle *pevent);
 void tep_set_latency_format(struct tep_handle *pevent, int lat);
 int tep_get_header_page_size(struct tep_handle *pevent);
 int tep_get_header_timestamp_size(struct tep_handle *tep);
diff --git a/tools/lib/traceevent/plugin_kvm.c b/tools/lib/traceevent/plugin_kvm.c
index 64b9c25a1fd3..688e5d97d7a7 100644
--- a/tools/lib/traceevent/plugin_kvm.c
+++ b/tools/lib/traceevent/plugin_kvm.c
@@ -389,8 +389,8 @@ static int kvm_mmu_print_role(struct trace_seq *s, struct tep_record *record,
 	 * We can only use the structure if file is of the same
 	 * endianness.
 	 */
-	if (tep_file_bigendian(event->pevent) ==
-	    tep_is_host_bigendian(event->pevent)) {
+	if (tep_is_file_bigendian(event->pevent) ==
+	    tep_is_local_bigendian(event->pevent)) {
 
 		trace_seq_printf(s, "%u q%u%s %s%s %spae %snxe %swp%s%s%s",
 				 role.level,
diff --git a/tools/perf/util/trace-event-read.c b/tools/perf/util/trace-event-read.c
index efe2f58cff4e..48d53d8e3e16 100644
--- a/tools/perf/util/trace-event-read.c
+++ b/tools/perf/util/trace-event-read.c
@@ -442,7 +442,7 @@ ssize_t trace_report(int fd, struct trace_event *tevent, bool __repipe)
 
 	tep_set_flag(pevent, TEP_NSEC_OUTPUT);
 	tep_set_file_bigendian(pevent, file_bigendian);
-	tep_set_host_bigendian(pevent, host_bigendian);
+	tep_set_local_bigendian(pevent, host_bigendian);
 
 	if (do_read(buf, 1) < 0)
 		goto out;
diff --git a/tools/perf/util/trace-event.c b/tools/perf/util/trace-event.c
index cbe0dd758e3a..01b9d89bf5bf 100644
--- a/tools/perf/util/trace-event.c
+++ b/tools/perf/util/trace-event.c
@@ -40,7 +40,7 @@ int trace_event__init(struct trace_event *t)
 
 static int trace_event__init2(void)
 {
-	int be = tep_host_bigendian();
+	int be = tep_is_bigendian();
 	struct tep_handle *pevent;
 
 	if (trace_event__init(&tevent))
@@ -49,7 +49,7 @@ static int trace_event__init2(void)
 	pevent = tevent.pevent;
 	tep_set_flag(pevent, TEP_NSEC_OUTPUT);
 	tep_set_file_bigendian(pevent, be);
-	tep_set_host_bigendian(pevent, be);
+	tep_set_local_bigendian(pevent, be);
 	tevent_initialized = true;
 	return 0;
 }
-- 
2.20.1



^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH 12/15] tools/lib/traceevent: Rename input arguments of libtraceevent APIs from pevent to tep
  2019-04-01 16:43 [PATCH 00/15] tools/lib/traceevent: Continuing on the path to a stand alone library Steven Rostedt
                   ` (10 preceding siblings ...)
  2019-04-01 16:43 ` [PATCH 11/15] tools/perf,tools/lib/traceevent: Make traceevent APIs more consistent Steven Rostedt
@ 2019-04-01 16:43 ` Steven Rostedt
  2019-04-05 11:49   ` [tip:perf/core] tools lib traceevent: " tip-bot for Tzvetomir Stoyanov
  2019-04-01 16:43 ` [PATCH 13/15] tools/perf,tools/lib/traceevent: Rename "pevent" member of struct tep_event to "tep" Steven Rostedt
                   ` (3 subsequent siblings)
  15 siblings, 1 reply; 55+ messages in thread
From: Steven Rostedt @ 2019-04-01 16:43 UTC (permalink / raw)
  To: linux-kernel
  Cc: Arnaldo Carvalho de Melo, Ingo Molnar, Jiri Olsa, Namhyung Kim,
	Andrew Morton, Tzvetomir Stoyanov

From: Tzvetomir Stoyanov <tstoyanov@vmware.com>

Input arguments of libtraceevent APIs are renamed from "struct tep_handle *pevent"
to "struct tep_handle *tep". This makes the API consistent with the chosen
naming convention: tep (trace event parser), instead of the old pevent.

Link: http://lore.kernel.org/linux-trace-devel/20190401132111.13727-2-tstoyanov@vmware.com

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
 tools/lib/traceevent/event-parse-api.c     | 132 +++---
 tools/lib/traceevent/event-parse-local.h   |   6 +-
 tools/lib/traceevent/event-parse.c         | 452 ++++++++++-----------
 tools/lib/traceevent/event-parse.h         | 123 +++---
 tools/lib/traceevent/event-plugin.c        |   8 +-
 tools/lib/traceevent/parse-filter.c        |   8 +-
 tools/lib/traceevent/plugin_cfg80211.c     |   8 +-
 tools/lib/traceevent/plugin_function.c     |   8 +-
 tools/lib/traceevent/plugin_hrtimer.c      |  12 +-
 tools/lib/traceevent/plugin_jbd2.c         |  12 +-
 tools/lib/traceevent/plugin_kmem.c         |  28 +-
 tools/lib/traceevent/plugin_kvm.c          |  44 +-
 tools/lib/traceevent/plugin_mac80211.c     |   8 +-
 tools/lib/traceevent/plugin_sched_switch.c |  16 +-
 tools/lib/traceevent/plugin_scsi.c         |   8 +-
 tools/lib/traceevent/plugin_xen.c          |   8 +-
 16 files changed, 439 insertions(+), 442 deletions(-)

diff --git a/tools/lib/traceevent/event-parse-api.c b/tools/lib/traceevent/event-parse-api.c
index f7184575f0d9..988587840c80 100644
--- a/tools/lib/traceevent/event-parse-api.c
+++ b/tools/lib/traceevent/event-parse-api.c
@@ -92,11 +92,11 @@ bool tep_test_flag(struct tep_handle *tep, enum tep_flag flag)
 	return false;
 }
 
-unsigned short tep_data2host2(struct tep_handle *pevent, unsigned short data)
+unsigned short tep_data2host2(struct tep_handle *tep, unsigned short data)
 {
 	unsigned short swap;
 
-	if (!pevent || pevent->host_bigendian == pevent->file_bigendian)
+	if (!tep || tep->host_bigendian == tep->file_bigendian)
 		return data;
 
 	swap = ((data & 0xffULL) << 8) |
@@ -105,11 +105,11 @@ unsigned short tep_data2host2(struct tep_handle *pevent, unsigned short data)
 	return swap;
 }
 
-unsigned int tep_data2host4(struct tep_handle *pevent, unsigned int data)
+unsigned int tep_data2host4(struct tep_handle *tep, unsigned int data)
 {
 	unsigned int swap;
 
-	if (!pevent || pevent->host_bigendian == pevent->file_bigendian)
+	if (!tep || tep->host_bigendian == tep->file_bigendian)
 		return data;
 
 	swap = ((data & 0xffULL) << 24) |
@@ -121,11 +121,11 @@ unsigned int tep_data2host4(struct tep_handle *pevent, unsigned int data)
 }
 
 unsigned long long
-tep_data2host8(struct tep_handle *pevent, unsigned long long data)
+tep_data2host8(struct tep_handle *tep, unsigned long long data)
 {
 	unsigned long long swap;
 
-	if (!pevent || pevent->host_bigendian == pevent->file_bigendian)
+	if (!tep || tep->host_bigendian == tep->file_bigendian)
 		return data;
 
 	swap = ((data & 0xffULL) << 56) |
@@ -142,15 +142,15 @@ tep_data2host8(struct tep_handle *pevent, unsigned long long data)
 
 /**
  * tep_get_header_page_size - get size of the header page
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This returns size of the header page
- * If @pevent is NULL, 0 is returned.
+ * If @tep is NULL, 0 is returned.
  */
-int tep_get_header_page_size(struct tep_handle *pevent)
+int tep_get_header_page_size(struct tep_handle *tep)
 {
-	if (pevent)
-		return pevent->header_page_size_size;
+	if (tep)
+		return tep->header_page_size_size;
 	return 0;
 }
 
@@ -170,163 +170,163 @@ int tep_get_header_timestamp_size(struct tep_handle *tep)
 
 /**
  * tep_get_cpus - get the number of CPUs
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This returns the number of CPUs
- * If @pevent is NULL, 0 is returned.
+ * If @tep is NULL, 0 is returned.
  */
-int tep_get_cpus(struct tep_handle *pevent)
+int tep_get_cpus(struct tep_handle *tep)
 {
-	if (pevent)
-		return pevent->cpus;
+	if (tep)
+		return tep->cpus;
 	return 0;
 }
 
 /**
  * tep_set_cpus - set the number of CPUs
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This sets the number of CPUs
  */
-void tep_set_cpus(struct tep_handle *pevent, int cpus)
+void tep_set_cpus(struct tep_handle *tep, int cpus)
 {
-	if (pevent)
-		pevent->cpus = cpus;
+	if (tep)
+		tep->cpus = cpus;
 }
 
 /**
  * tep_get_long_size - get the size of a long integer on the traced machine
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This returns the size of a long integer on the traced machine
- * If @pevent is NULL, 0 is returned.
+ * If @tep is NULL, 0 is returned.
  */
-int tep_get_long_size(struct tep_handle *pevent)
+int tep_get_long_size(struct tep_handle *tep)
 {
-	if (pevent)
-		return pevent->long_size;
+	if (tep)
+		return tep->long_size;
 	return 0;
 }
 
 /**
  * tep_set_long_size - set the size of a long integer on the traced machine
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  * @size: size, in bytes, of a long integer
  *
  * This sets the size of a long integer on the traced machine
  */
-void tep_set_long_size(struct tep_handle *pevent, int long_size)
+void tep_set_long_size(struct tep_handle *tep, int long_size)
 {
-	if (pevent)
-		pevent->long_size = long_size;
+	if (tep)
+		tep->long_size = long_size;
 }
 
 /**
  * tep_get_page_size - get the size of a memory page on the traced machine
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This returns the size of a memory page on the traced machine
- * If @pevent is NULL, 0 is returned.
+ * If @tep is NULL, 0 is returned.
  */
-int tep_get_page_size(struct tep_handle *pevent)
+int tep_get_page_size(struct tep_handle *tep)
 {
-	if (pevent)
-		return pevent->page_size;
+	if (tep)
+		return tep->page_size;
 	return 0;
 }
 
 /**
  * tep_set_page_size - set the size of a memory page on the traced machine
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  * @_page_size: size of a memory page, in bytes
  *
  * This sets the size of a memory page on the traced machine
  */
-void tep_set_page_size(struct tep_handle *pevent, int _page_size)
+void tep_set_page_size(struct tep_handle *tep, int _page_size)
 {
-	if (pevent)
-		pevent->page_size = _page_size;
+	if (tep)
+		tep->page_size = _page_size;
 }
 
 /**
  * tep_is_file_bigendian - return the endian of the file
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This returns true if the file is in big endian order
- * If @pevent is NULL, false is returned.
+ * If @tep is NULL, false is returned.
  */
-bool tep_is_file_bigendian(struct tep_handle *pevent)
+bool tep_is_file_bigendian(struct tep_handle *tep)
 {
-	if (pevent)
-		return pevent->file_bigendian == TEP_BIG_ENDIAN;
+	if (tep)
+		return (tep->file_bigendian == TEP_BIG_ENDIAN);
 	return false;
 }
 
 /**
  * tep_set_file_bigendian - set if the file is in big endian order
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  * @endian: non zero, if the file is in big endian order
  *
  * This sets if the file is in big endian order
  */
-void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian)
+void tep_set_file_bigendian(struct tep_handle *tep, enum tep_endian endian)
 {
-	if (pevent)
-		pevent->file_bigendian = endian;
+	if (tep)
+		tep->file_bigendian = endian;
 }
 
 /**
  * tep_is_local_bigendian - return the endian of the saved local machine
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
- * This returns true if the saved local machine in @pevent is big endian.
- * If @pevent is NULL, false is returned.
+ * This returns true if the saved local machine in @tep is big endian.
+ * If @tep is NULL, false is returned.
  */
-bool tep_is_local_bigendian(struct tep_handle *pevent)
+bool tep_is_local_bigendian(struct tep_handle *tep)
 {
-	if (pevent)
-		return pevent->host_bigendian == TEP_BIG_ENDIAN;
+	if (tep)
+		return (tep->host_bigendian == TEP_BIG_ENDIAN);
 	return 0;
 }
 
 /**
  * tep_set_local_bigendian - set the stored local machine endian order
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  * @endian: non zero, if the local host has big endian order
  *
  * This sets the endian order for the local machine.
  */
-void tep_set_local_bigendian(struct tep_handle *pevent, enum tep_endian endian)
+void tep_set_local_bigendian(struct tep_handle *tep, enum tep_endian endian)
 {
-	if (pevent)
-		pevent->host_bigendian = endian;
+	if (tep)
+		tep->host_bigendian = endian;
 }
 
 /**
  * tep_is_latency_format - get if the latency output format is configured
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This returns true if the latency output format is configured
- * If @pevent is NULL, false is returned.
+ * If @tep is NULL, false is returned.
  */
-bool tep_is_latency_format(struct tep_handle *pevent)
+bool tep_is_latency_format(struct tep_handle *tep)
 {
-	if (pevent)
-		return pevent->latency_format;
+	if (tep)
+		return (tep->latency_format);
 	return false;
 }
 
 /**
  * tep_set_latency_format - set the latency output format
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  * @lat: non zero for latency output format
  *
  * This sets the latency output format
   */
-void tep_set_latency_format(struct tep_handle *pevent, int lat)
+void tep_set_latency_format(struct tep_handle *tep, int lat)
 {
-	if (pevent)
-		pevent->latency_format = lat;
+	if (tep)
+		tep->latency_format = lat;
 }
 
 /**
diff --git a/tools/lib/traceevent/event-parse-local.h b/tools/lib/traceevent/event-parse-local.h
index 35833ee32d6c..09aa142f7fdd 100644
--- a/tools/lib/traceevent/event-parse-local.h
+++ b/tools/lib/traceevent/event-parse-local.h
@@ -92,8 +92,8 @@ struct tep_handle {
 void tep_free_event(struct tep_event *event);
 void tep_free_format_field(struct tep_format_field *field);
 
-unsigned short tep_data2host2(struct tep_handle *pevent, unsigned short data);
-unsigned int tep_data2host4(struct tep_handle *pevent, unsigned int data);
-unsigned long long tep_data2host8(struct tep_handle *pevent, unsigned long long data);
+unsigned short tep_data2host2(struct tep_handle *tep, unsigned short data);
+unsigned int tep_data2host4(struct tep_handle *tep, unsigned int data);
+unsigned long long tep_data2host8(struct tep_handle *tep, unsigned long long data);
 
 #endif /* _PARSE_EVENTS_INT_H */
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 8836702122be..ceefa9b3d726 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -200,13 +200,13 @@ static const char *find_cmdline(struct tep_handle *pevent, int pid)
 
 /**
  * tep_is_pid_registered - return if a pid has a cmdline registered
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @pid: The pid to check if it has a cmdline registered with.
  *
  * Returns true if the pid has a cmdline mapped to it
  * false otherwise.
  */
-bool tep_is_pid_registered(struct tep_handle *pevent, int pid)
+bool tep_is_pid_registered(struct tep_handle *tep, int pid)
 {
 	const struct tep_cmdline *comm;
 	struct tep_cmdline key;
@@ -214,13 +214,13 @@ bool tep_is_pid_registered(struct tep_handle *pevent, int pid)
 	if (!pid)
 		return true;
 
-	if (!pevent->cmdlines && cmdline_init(pevent))
+	if (!tep->cmdlines && cmdline_init(tep))
 		return false;
 
 	key.pid = pid;
 
-	comm = bsearch(&key, pevent->cmdlines, pevent->cmdline_count,
-		       sizeof(*pevent->cmdlines), cmdline_cmp);
+	comm = bsearch(&key, tep->cmdlines, tep->cmdline_count,
+		       sizeof(*tep->cmdlines), cmdline_cmp);
 
 	if (comm)
 		return true;
@@ -288,13 +288,13 @@ static int add_new_comm(struct tep_handle *pevent,
 	return 0;
 }
 
-static int _tep_register_comm(struct tep_handle *pevent,
+static int _tep_register_comm(struct tep_handle *tep,
 			      const char *comm, int pid, bool override)
 {
 	struct cmdline_list *item;
 
-	if (pevent->cmdlines)
-		return add_new_comm(pevent, comm, pid, override);
+	if (tep->cmdlines)
+		return add_new_comm(tep, comm, pid, override);
 
 	item = malloc(sizeof(*item));
 	if (!item)
@@ -309,17 +309,17 @@ static int _tep_register_comm(struct tep_handle *pevent,
 		return -1;
 	}
 	item->pid = pid;
-	item->next = pevent->cmdlist;
+	item->next = tep->cmdlist;
 
-	pevent->cmdlist = item;
-	pevent->cmdline_count++;
+	tep->cmdlist = item;
+	tep->cmdline_count++;
 
 	return 0;
 }
 
 /**
  * tep_register_comm - register a pid / comm mapping
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @comm: the command line to register
  * @pid: the pid to map the command line to
  *
@@ -327,14 +327,14 @@ static int _tep_register_comm(struct tep_handle *pevent,
  * a given pid. The comm is duplicated. If a command with the same pid
  * already exist, -1 is returned and errno is set to EEXIST
  */
-int tep_register_comm(struct tep_handle *pevent, const char *comm, int pid)
+int tep_register_comm(struct tep_handle *tep, const char *comm, int pid)
 {
-	return _tep_register_comm(pevent, comm, pid, false);
+	return _tep_register_comm(tep, comm, pid, false);
 }
 
 /**
  * tep_override_comm - register a pid / comm mapping
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @comm: the command line to register
  * @pid: the pid to map the command line to
  *
@@ -342,19 +342,19 @@ int tep_register_comm(struct tep_handle *pevent, const char *comm, int pid)
  * a given pid. The comm is duplicated. If a command with the same pid
  * already exist, the command string is udapted with the new one
  */
-int tep_override_comm(struct tep_handle *pevent, const char *comm, int pid)
+int tep_override_comm(struct tep_handle *tep, const char *comm, int pid)
 {
-	if (!pevent->cmdlines && cmdline_init(pevent)) {
+	if (!tep->cmdlines && cmdline_init(tep)) {
 		errno = ENOMEM;
 		return -1;
 	}
-	return _tep_register_comm(pevent, comm, pid, true);
+	return _tep_register_comm(tep, comm, pid, true);
 }
 
-int tep_register_trace_clock(struct tep_handle *pevent, const char *trace_clock)
+int tep_register_trace_clock(struct tep_handle *tep, const char *trace_clock)
 {
-	pevent->trace_clock = strdup(trace_clock);
-	if (!pevent->trace_clock) {
+	tep->trace_clock = strdup(trace_clock);
+	if (!tep->trace_clock) {
 		errno = ENOMEM;
 		return -1;
 	}
@@ -472,15 +472,14 @@ struct func_resolver {
 
 /**
  * tep_set_function_resolver - set an alternative function resolver
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @resolver: function to be used
  * @priv: resolver function private state.
  *
  * Some tools may have already a way to resolve kernel functions, allow them to
- * keep using it instead of duplicating all the entries inside
- * pevent->funclist.
+ * keep using it instead of duplicating all the entries inside tep->funclist.
  */
-int tep_set_function_resolver(struct tep_handle *pevent,
+int tep_set_function_resolver(struct tep_handle *tep,
 			      tep_func_resolver_t *func, void *priv)
 {
 	struct func_resolver *resolver = malloc(sizeof(*resolver));
@@ -491,23 +490,23 @@ int tep_set_function_resolver(struct tep_handle *pevent,
 	resolver->func = func;
 	resolver->priv = priv;
 
-	free(pevent->func_resolver);
-	pevent->func_resolver = resolver;
+	free(tep->func_resolver);
+	tep->func_resolver = resolver;
 
 	return 0;
 }
 
 /**
  * tep_reset_function_resolver - reset alternative function resolver
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  *
  * Stop using whatever alternative resolver was set, use the default
  * one instead.
  */
-void tep_reset_function_resolver(struct tep_handle *pevent)
+void tep_reset_function_resolver(struct tep_handle *tep)
 {
-	free(pevent->func_resolver);
-	pevent->func_resolver = NULL;
+	free(tep->func_resolver);
+	tep->func_resolver = NULL;
 }
 
 static struct func_map *
@@ -531,18 +530,18 @@ find_func(struct tep_handle *pevent, unsigned long long addr)
 
 /**
  * tep_find_function - find a function by a given address
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @addr: the address to find the function with
  *
  * Returns a pointer to the function stored that has the given
  * address. Note, the address does not have to be exact, it
  * will select the function that would contain the address.
  */
-const char *tep_find_function(struct tep_handle *pevent, unsigned long long addr)
+const char *tep_find_function(struct tep_handle *tep, unsigned long long addr)
 {
 	struct func_map *map;
 
-	map = find_func(pevent, addr);
+	map = find_func(tep, addr);
 	if (!map)
 		return NULL;
 
@@ -551,7 +550,7 @@ const char *tep_find_function(struct tep_handle *pevent, unsigned long long addr
 
 /**
  * tep_find_function_address - find a function address by a given address
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @addr: the address to find the function with
  *
  * Returns the address the function starts at. This can be used in
@@ -559,11 +558,11 @@ const char *tep_find_function(struct tep_handle *pevent, unsigned long long addr
  * name and the function offset.
  */
 unsigned long long
-tep_find_function_address(struct tep_handle *pevent, unsigned long long addr)
+tep_find_function_address(struct tep_handle *tep, unsigned long long addr)
 {
 	struct func_map *map;
 
-	map = find_func(pevent, addr);
+	map = find_func(tep, addr);
 	if (!map)
 		return 0;
 
@@ -572,7 +571,7 @@ tep_find_function_address(struct tep_handle *pevent, unsigned long long addr)
 
 /**
  * tep_register_function - register a function with a given address
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @function: the function name to register
  * @addr: the address the function starts at
  * @mod: the kernel module the function may be in (NULL for none)
@@ -580,7 +579,7 @@ tep_find_function_address(struct tep_handle *pevent, unsigned long long addr)
  * This registers a function name with an address and module.
  * The @func passed in is duplicated.
  */
-int tep_register_function(struct tep_handle *pevent, char *func,
+int tep_register_function(struct tep_handle *tep, char *func,
 			  unsigned long long addr, char *mod)
 {
 	struct func_list *item = malloc(sizeof(*item));
@@ -588,7 +587,7 @@ int tep_register_function(struct tep_handle *pevent, char *func,
 	if (!item)
 		return -1;
 
-	item->next = pevent->funclist;
+	item->next = tep->funclist;
 	item->func = strdup(func);
 	if (!item->func)
 		goto out_free;
@@ -601,8 +600,8 @@ int tep_register_function(struct tep_handle *pevent, char *func,
 		item->mod = NULL;
 	item->addr = addr;
 
-	pevent->funclist = item;
-	pevent->func_count++;
+	tep->funclist = item;
+	tep->func_count++;
 
 	return 0;
 
@@ -617,23 +616,23 @@ int tep_register_function(struct tep_handle *pevent, char *func,
 
 /**
  * tep_print_funcs - print out the stored functions
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  *
  * This prints out the stored functions.
  */
-void tep_print_funcs(struct tep_handle *pevent)
+void tep_print_funcs(struct tep_handle *tep)
 {
 	int i;
 
-	if (!pevent->func_map)
-		func_map_init(pevent);
+	if (!tep->func_map)
+		func_map_init(tep);
 
-	for (i = 0; i < (int)pevent->func_count; i++) {
+	for (i = 0; i < (int)tep->func_count; i++) {
 		printf("%016llx %s",
-		       pevent->func_map[i].addr,
-		       pevent->func_map[i].func);
-		if (pevent->func_map[i].mod)
-			printf(" [%s]\n", pevent->func_map[i].mod);
+		       tep->func_map[i].addr,
+		       tep->func_map[i].func);
+		if (tep->func_map[i].mod)
+			printf(" [%s]\n", tep->func_map[i].mod);
 		else
 			printf("\n");
 	}
@@ -713,14 +712,14 @@ find_printk(struct tep_handle *pevent, unsigned long long addr)
 
 /**
  * tep_register_print_string - register a string by its address
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @fmt: the string format to register
  * @addr: the address the string was located at
  *
  * This registers a string by the address it was stored in the kernel.
  * The @fmt passed in is duplicated.
  */
-int tep_register_print_string(struct tep_handle *pevent, const char *fmt,
+int tep_register_print_string(struct tep_handle *tep, const char *fmt,
 			      unsigned long long addr)
 {
 	struct printk_list *item = malloc(sizeof(*item));
@@ -729,7 +728,7 @@ int tep_register_print_string(struct tep_handle *pevent, const char *fmt,
 	if (!item)
 		return -1;
 
-	item->next = pevent->printklist;
+	item->next = tep->printklist;
 	item->addr = addr;
 
 	/* Strip off quotes and '\n' from the end */
@@ -747,8 +746,8 @@ int tep_register_print_string(struct tep_handle *pevent, const char *fmt,
 	if (strcmp(p, "\\n") == 0)
 		*p = 0;
 
-	pevent->printklist = item;
-	pevent->printk_count++;
+	tep->printklist = item;
+	tep->printk_count++;
 
 	return 0;
 
@@ -760,21 +759,21 @@ int tep_register_print_string(struct tep_handle *pevent, const char *fmt,
 
 /**
  * tep_print_printk - print out the stored strings
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  *
  * This prints the string formats that were stored.
  */
-void tep_print_printk(struct tep_handle *pevent)
+void tep_print_printk(struct tep_handle *tep)
 {
 	int i;
 
-	if (!pevent->printk_map)
-		printk_map_init(pevent);
+	if (!tep->printk_map)
+		printk_map_init(tep);
 
-	for (i = 0; i < (int)pevent->printk_count; i++) {
+	for (i = 0; i < (int)tep->printk_count; i++) {
 		printf("%016llx %s\n",
-		       pevent->printk_map[i].addr,
-		       pevent->printk_map[i].printk);
+		       tep->printk_map[i].addr,
+		       tep->printk_map[i].printk);
 	}
 }
 
@@ -1184,7 +1183,7 @@ static enum tep_event_type read_token(char **tok)
 }
 
 /**
- * tep_read_token - access to utilities to use the pevent parser
+ * tep_read_token - access to utilities to use the tep parser
  * @tok: The token to return
  *
  * This will parse tokens from the string given by
@@ -3357,14 +3356,14 @@ tep_find_any_field(struct tep_event *event, const char *name)
 
 /**
  * tep_read_number - read a number from data
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @ptr: the raw data
  * @size: the size of the data that holds the number
  *
  * Returns the number (converted to host) from the
  * raw data.
  */
-unsigned long long tep_read_number(struct tep_handle *pevent,
+unsigned long long tep_read_number(struct tep_handle *tep,
 				   const void *ptr, int size)
 {
 	unsigned long long val;
@@ -3373,12 +3372,12 @@ unsigned long long tep_read_number(struct tep_handle *pevent,
 	case 1:
 		return *(unsigned char *)ptr;
 	case 2:
-		return tep_data2host2(pevent, *(unsigned short *)ptr);
+		return tep_data2host2(tep, *(unsigned short *)ptr);
 	case 4:
-		return tep_data2host4(pevent, *(unsigned int *)ptr);
+		return tep_data2host4(tep, *(unsigned int *)ptr);
 	case 8:
 		memcpy(&val, (ptr), sizeof(unsigned long long));
-		return tep_data2host8(pevent, val);
+		return tep_data2host8(tep, val);
 	default:
 		/* BUG! */
 		return 0;
@@ -3499,28 +3498,28 @@ static int events_id_cmp(const void *a, const void *b);
 
 /**
  * tep_find_event - find an event by given id
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @id: the id of the event
  *
  * Returns an event that has a given @id.
  */
-struct tep_event *tep_find_event(struct tep_handle *pevent, int id)
+struct tep_event *tep_find_event(struct tep_handle *tep, int id)
 {
 	struct tep_event **eventptr;
 	struct tep_event key;
 	struct tep_event *pkey = &key;
 
 	/* Check cache first */
-	if (pevent->last_event && pevent->last_event->id == id)
-		return pevent->last_event;
+	if (tep->last_event && tep->last_event->id == id)
+		return tep->last_event;
 
 	key.id = id;
 
-	eventptr = bsearch(&pkey, pevent->events, pevent->nr_events,
-			   sizeof(*pevent->events), events_id_cmp);
+	eventptr = bsearch(&pkey, tep->events, tep->nr_events,
+			   sizeof(*tep->events), events_id_cmp);
 
 	if (eventptr) {
-		pevent->last_event = *eventptr;
+		tep->last_event = *eventptr;
 		return *eventptr;
 	}
 
@@ -3529,7 +3528,7 @@ struct tep_event *tep_find_event(struct tep_handle *pevent, int id)
 
 /**
  * tep_find_event_by_name - find an event by given name
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @sys: the system name to search for
  * @name: the name of the event to search for
  *
@@ -3537,19 +3536,19 @@ struct tep_event *tep_find_event(struct tep_handle *pevent, int id)
  * @sys. If @sys is NULL the first event with @name is returned.
  */
 struct tep_event *
-tep_find_event_by_name(struct tep_handle *pevent,
+tep_find_event_by_name(struct tep_handle *tep,
 		       const char *sys, const char *name)
 {
 	struct tep_event *event = NULL;
 	int i;
 
-	if (pevent->last_event &&
-	    strcmp(pevent->last_event->name, name) == 0 &&
-	    (!sys || strcmp(pevent->last_event->system, sys) == 0))
-		return pevent->last_event;
+	if (tep->last_event &&
+	    strcmp(tep->last_event->name, name) == 0 &&
+	    (!sys || strcmp(tep->last_event->system, sys) == 0))
+		return tep->last_event;
 
-	for (i = 0; i < pevent->nr_events; i++) {
-		event = pevent->events[i];
+	for (i = 0; i < tep->nr_events; i++) {
+		event = tep->events[i];
 		if (strcmp(event->name, name) == 0) {
 			if (!sys)
 				break;
@@ -3557,10 +3556,10 @@ tep_find_event_by_name(struct tep_handle *pevent,
 				break;
 		}
 	}
-	if (i == pevent->nr_events)
+	if (i == tep->nr_events)
 		event = NULL;
 
-	pevent->last_event = event;
+	tep->last_event = event;
 	return event;
 }
 
@@ -5173,7 +5172,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_e
 
 /**
  * tep_data_latency_format - parse the data for the latency format
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @s: the trace_seq to write to
  * @record: the record to read from
  *
@@ -5181,7 +5180,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_e
  * need rescheduling, in hard/soft interrupt, preempt count
  * and lock depth) and places it into the trace_seq.
  */
-void tep_data_latency_format(struct tep_handle *pevent,
+void tep_data_latency_format(struct tep_handle *tep,
 			     struct trace_seq *s, struct tep_record *record)
 {
 	static int check_lock_depth = 1;
@@ -5196,13 +5195,13 @@ void tep_data_latency_format(struct tep_handle *pevent,
 	int softirq;
 	void *data = record->data;
 
-	lat_flags = parse_common_flags(pevent, data);
-	pc = parse_common_pc(pevent, data);
+	lat_flags = parse_common_flags(tep, data);
+	pc = parse_common_pc(tep, data);
 	/* lock_depth may not always exist */
 	if (lock_depth_exists)
-		lock_depth = parse_common_lock_depth(pevent, data);
+		lock_depth = parse_common_lock_depth(tep, data);
 	else if (check_lock_depth) {
-		lock_depth = parse_common_lock_depth(pevent, data);
+		lock_depth = parse_common_lock_depth(tep, data);
 		if (lock_depth < 0)
 			check_lock_depth = 0;
 		else
@@ -5211,9 +5210,9 @@ void tep_data_latency_format(struct tep_handle *pevent,
 
 	/* migrate_disable may not always exist */
 	if (migrate_disable_exists)
-		migrate_disable = parse_common_migrate_disable(pevent, data);
+		migrate_disable = parse_common_migrate_disable(tep, data);
 	else if (check_migrate_disable) {
-		migrate_disable = parse_common_migrate_disable(pevent, data);
+		migrate_disable = parse_common_migrate_disable(tep, data);
 		if (migrate_disable < 0)
 			check_migrate_disable = 0;
 		else
@@ -5256,67 +5255,67 @@ void tep_data_latency_format(struct tep_handle *pevent,
 
 /**
  * tep_data_type - parse out the given event type
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @rec: the record to read from
  *
  * This returns the event id from the @rec.
  */
-int tep_data_type(struct tep_handle *pevent, struct tep_record *rec)
+int tep_data_type(struct tep_handle *tep, struct tep_record *rec)
 {
-	return trace_parse_common_type(pevent, rec->data);
+	return trace_parse_common_type(tep, rec->data);
 }
 
 /**
  * tep_data_pid - parse the PID from record
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @rec: the record to parse
  *
  * This returns the PID from a record.
  */
-int tep_data_pid(struct tep_handle *pevent, struct tep_record *rec)
+int tep_data_pid(struct tep_handle *tep, struct tep_record *rec)
 {
-	return parse_common_pid(pevent, rec->data);
+	return parse_common_pid(tep, rec->data);
 }
 
 /**
  * tep_data_preempt_count - parse the preempt count from the record
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @rec: the record to parse
  *
  * This returns the preempt count from a record.
  */
-int tep_data_preempt_count(struct tep_handle *pevent, struct tep_record *rec)
+int tep_data_preempt_count(struct tep_handle *tep, struct tep_record *rec)
 {
-	return parse_common_pc(pevent, rec->data);
+	return parse_common_pc(tep, rec->data);
 }
 
 /**
  * tep_data_flags - parse the latency flags from the record
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @rec: the record to parse
  *
  * This returns the latency flags from a record.
  *
  *  Use trace_flag_type enum for the flags (see event-parse.h).
  */
-int tep_data_flags(struct tep_handle *pevent, struct tep_record *rec)
+int tep_data_flags(struct tep_handle *tep, struct tep_record *rec)
 {
-	return parse_common_flags(pevent, rec->data);
+	return parse_common_flags(tep, rec->data);
 }
 
 /**
  * tep_data_comm_from_pid - return the command line from PID
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @pid: the PID of the task to search for
  *
  * This returns a pointer to the command line that has the given
  * @pid.
  */
-const char *tep_data_comm_from_pid(struct tep_handle *pevent, int pid)
+const char *tep_data_comm_from_pid(struct tep_handle *tep, int pid)
 {
 	const char *comm;
 
-	comm = find_cmdline(pevent, pid);
+	comm = find_cmdline(tep, pid);
 	return comm;
 }
 
@@ -5338,7 +5337,7 @@ pid_from_cmdlist(struct tep_handle *pevent, const char *comm, struct tep_cmdline
 
 /**
  * tep_data_pid_from_comm - return the pid from a given comm
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @comm: the cmdline to find the pid from
  * @next: the cmdline structure to find the next comm
  *
@@ -5349,7 +5348,7 @@ pid_from_cmdlist(struct tep_handle *pevent, const char *comm, struct tep_cmdline
  * next pid.
  * Also, it does a linear search, so it may be slow.
  */
-struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *pevent, const char *comm,
+struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *tep, const char *comm,
 					   struct tep_cmdline *next)
 {
 	struct tep_cmdline *cmdline;
@@ -5358,25 +5357,25 @@ struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *pevent, const char
 	 * If the cmdlines have not been converted yet, then use
 	 * the list.
 	 */
-	if (!pevent->cmdlines)
-		return pid_from_cmdlist(pevent, comm, next);
+	if (!tep->cmdlines)
+		return pid_from_cmdlist(tep, comm, next);
 
 	if (next) {
 		/*
 		 * The next pointer could have been still from
 		 * a previous call before cmdlines were created
 		 */
-		if (next < pevent->cmdlines ||
-		    next >= pevent->cmdlines + pevent->cmdline_count)
+		if (next < tep->cmdlines ||
+		    next >= tep->cmdlines + tep->cmdline_count)
 			next = NULL;
 		else
 			cmdline  = next++;
 	}
 
 	if (!next)
-		cmdline = pevent->cmdlines;
+		cmdline = tep->cmdlines;
 
-	while (cmdline < pevent->cmdlines + pevent->cmdline_count) {
+	while (cmdline < tep->cmdlines + tep->cmdline_count) {
 		if (strcmp(cmdline->comm, comm) == 0)
 			return cmdline;
 		cmdline++;
@@ -5386,12 +5385,13 @@ struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *pevent, const char
 
 /**
  * tep_cmdline_pid - return the pid associated to a given cmdline
+ * @tep: a handle to the trace event parser context
  * @cmdline: The cmdline structure to get the pid from
  *
  * Returns the pid for a give cmdline. If @cmdline is NULL, then
  * -1 is returned.
  */
-int tep_cmdline_pid(struct tep_handle *pevent, struct tep_cmdline *cmdline)
+int tep_cmdline_pid(struct tep_handle *tep, struct tep_cmdline *cmdline)
 {
 	struct cmdline_list *cmdlist = (struct cmdline_list *)cmdline;
 
@@ -5402,9 +5402,9 @@ int tep_cmdline_pid(struct tep_handle *pevent, struct tep_cmdline *cmdline)
 	 * If cmdlines have not been created yet, or cmdline is
 	 * not part of the array, then treat it as a cmdlist instead.
 	 */
-	if (!pevent->cmdlines ||
-	    cmdline < pevent->cmdlines ||
-	    cmdline >= pevent->cmdlines + pevent->cmdline_count)
+	if (!tep->cmdlines ||
+	    cmdline < tep->cmdlines ||
+	    cmdline >= tep->cmdlines + tep->cmdline_count)
 		return cmdlist->pid;
 
 	return cmdline->pid;
@@ -5455,14 +5455,14 @@ static bool is_timestamp_in_us(char *trace_clock, bool use_trace_clock)
 
 /**
  * tep_find_event_by_record - return the event from a given record
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @record: The record to get the event from
  *
  * Returns the associated event for a given record, or NULL if non is
  * is found.
  */
 struct tep_event *
-tep_find_event_by_record(struct tep_handle *pevent, struct tep_record *record)
+tep_find_event_by_record(struct tep_handle *tep, struct tep_record *record)
 {
 	int type;
 
@@ -5471,21 +5471,21 @@ tep_find_event_by_record(struct tep_handle *pevent, struct tep_record *record)
 		return NULL;
 	}
 
-	type = trace_parse_common_type(pevent, record->data);
+	type = trace_parse_common_type(tep, record->data);
 
-	return tep_find_event(pevent, type);
+	return tep_find_event(tep, type);
 }
 
 /**
  * tep_print_event_task - Write the event task comm, pid and CPU
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @s: the trace_seq to write to
  * @event: the handle to the record's event
  * @record: The record to get the event from
  *
  * Writes the tasks comm, pid and CPU to @s.
  */
-void tep_print_event_task(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event_task(struct tep_handle *tep, struct trace_seq *s,
 			  struct tep_event *event,
 			  struct tep_record *record)
 {
@@ -5493,27 +5493,26 @@ void tep_print_event_task(struct tep_handle *pevent, struct trace_seq *s,
 	const char *comm;
 	int pid;
 
-	pid = parse_common_pid(pevent, data);
-	comm = find_cmdline(pevent, pid);
+	pid = parse_common_pid(tep, data);
+	comm = find_cmdline(tep, pid);
 
-	if (pevent->latency_format) {
-		trace_seq_printf(s, "%8.8s-%-5d %3d",
-		       comm, pid, record->cpu);
-	} else
+	if (tep->latency_format)
+		trace_seq_printf(s, "%8.8s-%-5d %3d", comm, pid, record->cpu);
+	else
 		trace_seq_printf(s, "%16s-%-5d [%03d]", comm, pid, record->cpu);
 }
 
 /**
  * tep_print_event_time - Write the event timestamp
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @s: the trace_seq to write to
  * @event: the handle to the record's event
  * @record: The record to get the event from
- * @use_trace_clock: Set to parse according to the @pevent->trace_clock
+ * @use_trace_clock: Set to parse according to the @tep->trace_clock
  *
  * Writes the timestamp of the record into @s.
  */
-void tep_print_event_time(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event_time(struct tep_handle *tep, struct trace_seq *s,
 			  struct tep_event *event,
 			  struct tep_record *record,
 			  bool use_trace_clock)
@@ -5524,19 +5523,18 @@ void tep_print_event_time(struct tep_handle *pevent, struct trace_seq *s,
 	int p;
 	bool use_usec_format;
 
-	use_usec_format = is_timestamp_in_us(pevent->trace_clock,
-							use_trace_clock);
+	use_usec_format = is_timestamp_in_us(tep->trace_clock, use_trace_clock);
 	if (use_usec_format) {
 		secs = record->ts / NSEC_PER_SEC;
 		nsecs = record->ts - secs * NSEC_PER_SEC;
 	}
 
-	if (pevent->latency_format) {
-		tep_data_latency_format(pevent, s, record);
+	if (tep->latency_format) {
+		tep_data_latency_format(tep, s, record);
 	}
 
 	if (use_usec_format) {
-		if (pevent->flags & TEP_NSEC_OUTPUT) {
+		if (tep->flags & TEP_NSEC_OUTPUT) {
 			usecs = nsecs;
 			p = 9;
 		} else {
@@ -5556,14 +5554,14 @@ void tep_print_event_time(struct tep_handle *pevent, struct trace_seq *s,
 
 /**
  * tep_print_event_data - Write the event data section
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @s: the trace_seq to write to
  * @event: the handle to the record's event
  * @record: The record to get the event from
  *
  * Writes the parsing of the record's data to @s.
  */
-void tep_print_event_data(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event_data(struct tep_handle *tep, struct trace_seq *s,
 			  struct tep_event *event,
 			  struct tep_record *record)
 {
@@ -5580,15 +5578,15 @@ void tep_print_event_data(struct tep_handle *pevent, struct trace_seq *s,
 	tep_event_info(s, event, record);
 }
 
-void tep_print_event(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event(struct tep_handle *tep, struct trace_seq *s,
 		     struct tep_record *record, bool use_trace_clock)
 {
 	struct tep_event *event;
 
-	event = tep_find_event_by_record(pevent, record);
+	event = tep_find_event_by_record(tep, record);
 	if (!event) {
 		int i;
-		int type = trace_parse_common_type(pevent, record->data);
+		int type = trace_parse_common_type(tep, record->data);
 
 		do_warning("ug! no event found for type %d", type);
 		trace_seq_printf(s, "[UNKNOWN TYPE %d]", type);
@@ -5598,9 +5596,9 @@ void tep_print_event(struct tep_handle *pevent, struct trace_seq *s,
 		return;
 	}
 
-	tep_print_event_task(pevent, s, event, record);
-	tep_print_event_time(pevent, s, event, record, use_trace_clock);
-	tep_print_event_data(pevent, s, event, record);
+	tep_print_event_task(tep, s, event, record);
+	tep_print_event_time(tep, s, event, record, use_trace_clock);
+	tep_print_event_data(tep, s, event, record);
 }
 
 static int events_id_cmp(const void *a, const void *b)
@@ -6017,7 +6015,7 @@ static void parse_header_field(const char *field,
 
 /**
  * tep_parse_header_page - parse the data stored in the header page
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @buf: the buffer storing the header page format string
  * @size: the size of @buf
  * @long_size: the long size to use if there is no header
@@ -6027,7 +6025,7 @@ static void parse_header_field(const char *field,
  *
  * /sys/kernel/debug/tracing/events/header_page
  */
-int tep_parse_header_page(struct tep_handle *pevent, char *buf, unsigned long size,
+int tep_parse_header_page(struct tep_handle *tep, char *buf, unsigned long size,
 			  int long_size)
 {
 	int ignore;
@@ -6037,22 +6035,22 @@ int tep_parse_header_page(struct tep_handle *pevent, char *buf, unsigned long si
 		 * Old kernels did not have header page info.
 		 * Sorry but we just use what we find here in user space.
 		 */
-		pevent->header_page_ts_size = sizeof(long long);
-		pevent->header_page_size_size = long_size;
-		pevent->header_page_data_offset = sizeof(long long) + long_size;
-		pevent->old_format = 1;
+		tep->header_page_ts_size = sizeof(long long);
+		tep->header_page_size_size = long_size;
+		tep->header_page_data_offset = sizeof(long long) + long_size;
+		tep->old_format = 1;
 		return -1;
 	}
 	init_input_buf(buf, size);
 
-	parse_header_field("timestamp", &pevent->header_page_ts_offset,
-			   &pevent->header_page_ts_size, 1);
-	parse_header_field("commit", &pevent->header_page_size_offset,
-			   &pevent->header_page_size_size, 1);
-	parse_header_field("overwrite", &pevent->header_page_overwrite,
+	parse_header_field("timestamp", &tep->header_page_ts_offset,
+			   &tep->header_page_ts_size, 1);
+	parse_header_field("commit", &tep->header_page_size_offset,
+			   &tep->header_page_size_size, 1);
+	parse_header_field("overwrite", &tep->header_page_overwrite,
 			   &ignore, 0);
-	parse_header_field("data", &pevent->header_page_data_offset,
-			   &pevent->header_page_data_size, 1);
+	parse_header_field("data", &tep->header_page_data_offset,
+			   &tep->header_page_data_size, 1);
 
 	return 0;
 }
@@ -6258,7 +6256,7 @@ __parse_event(struct tep_handle *pevent,
 
 /**
  * tep_parse_format - parse the event format
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @eventp: returned format
  * @buf: the buffer storing the event format string
  * @size: the size of @buf
@@ -6271,17 +6269,17 @@ __parse_event(struct tep_handle *pevent,
  *
  * /sys/kernel/debug/tracing/events/.../.../format
  */
-enum tep_errno tep_parse_format(struct tep_handle *pevent,
+enum tep_errno tep_parse_format(struct tep_handle *tep,
 				struct tep_event **eventp,
 				const char *buf,
 				unsigned long size, const char *sys)
 {
-	return __parse_event(pevent, eventp, buf, size, sys);
+	return __parse_event(tep, eventp, buf, size, sys);
 }
 
 /**
  * tep_parse_event - parse the event format
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @buf: the buffer storing the event format string
  * @size: the size of @buf
  * @sys: the system the event belongs to
@@ -6293,11 +6291,11 @@ enum tep_errno tep_parse_format(struct tep_handle *pevent,
  *
  * /sys/kernel/debug/tracing/events/.../.../format
  */
-enum tep_errno tep_parse_event(struct tep_handle *pevent, const char *buf,
+enum tep_errno tep_parse_event(struct tep_handle *tep, const char *buf,
 			       unsigned long size, const char *sys)
 {
 	struct tep_event *event = NULL;
-	return __parse_event(pevent, &event, buf, size, sys);
+	return __parse_event(tep, &event, buf, size, sys);
 }
 
 int get_field_val(struct trace_seq *s, struct tep_format_field *field,
@@ -6537,7 +6535,7 @@ static void free_func_handle(struct tep_function_handler *func)
 
 /**
  * tep_register_print_function - register a helper function
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @func: the function to process the helper function
  * @ret_type: the return type of the helper function
  * @name: the name of the helper function
@@ -6550,7 +6548,7 @@ static void free_func_handle(struct tep_function_handler *func)
  * The @parameters is a variable list of tep_func_arg_type enums that
  * must end with TEP_FUNC_ARG_VOID.
  */
-int tep_register_print_function(struct tep_handle *pevent,
+int tep_register_print_function(struct tep_handle *tep,
 				tep_func_handler func,
 				enum tep_func_arg_type ret_type,
 				char *name, ...)
@@ -6562,7 +6560,7 @@ int tep_register_print_function(struct tep_handle *pevent,
 	va_list ap;
 	int ret;
 
-	func_handle = find_func_handler(pevent, name);
+	func_handle = find_func_handler(tep, name);
 	if (func_handle) {
 		/*
 		 * This is most like caused by the users own
@@ -6570,7 +6568,7 @@ int tep_register_print_function(struct tep_handle *pevent,
 		 * system defaults.
 		 */
 		pr_stat("override of function helper '%s'", name);
-		remove_func_handler(pevent, name);
+		remove_func_handler(tep, name);
 	}
 
 	func_handle = calloc(1, sizeof(*func_handle));
@@ -6617,8 +6615,8 @@ int tep_register_print_function(struct tep_handle *pevent,
 	}
 	va_end(ap);
 
-	func_handle->next = pevent->func_handlers;
-	pevent->func_handlers = func_handle;
+	func_handle->next = tep->func_handlers;
+	tep->func_handlers = func_handle;
 
 	return 0;
  out_free:
@@ -6629,7 +6627,7 @@ int tep_register_print_function(struct tep_handle *pevent,
 
 /**
  * tep_unregister_print_function - unregister a helper function
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @func: the function to process the helper function
  * @name: the name of the helper function
  *
@@ -6637,14 +6635,14 @@ int tep_register_print_function(struct tep_handle *pevent,
  *
  * Returns 0 if the handler was removed successully, -1 otherwise.
  */
-int tep_unregister_print_function(struct tep_handle *pevent,
+int tep_unregister_print_function(struct tep_handle *tep,
 				  tep_func_handler func, char *name)
 {
 	struct tep_function_handler *func_handle;
 
-	func_handle = find_func_handler(pevent, name);
+	func_handle = find_func_handler(tep, name);
 	if (func_handle && func_handle->func == func) {
-		remove_func_handler(pevent, name);
+		remove_func_handler(tep, name);
 		return 0;
 	}
 	return -1;
@@ -6675,7 +6673,7 @@ static struct tep_event *search_event(struct tep_handle *pevent, int id,
 
 /**
  * tep_register_event_handler - register a way to parse an event
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @id: the id of the event to register
  * @sys_name: the system name the event belongs to
  * @event_name: the name of the event
@@ -6696,14 +6694,14 @@ static struct tep_event *search_event(struct tep_handle *pevent, int id,
  *  negative TEP_ERRNO_... in case of an error
  *
  */
-int tep_register_event_handler(struct tep_handle *pevent, int id,
+int tep_register_event_handler(struct tep_handle *tep, int id,
 			       const char *sys_name, const char *event_name,
 			       tep_event_handler_func func, void *context)
 {
 	struct tep_event *event;
 	struct event_handler *handle;
 
-	event = search_event(pevent, id, sys_name, event_name);
+	event = search_event(tep, id, sys_name, event_name);
 	if (event == NULL)
 		goto not_found;
 
@@ -6738,8 +6736,8 @@ int tep_register_event_handler(struct tep_handle *pevent, int id,
 	}
 
 	handle->func = func;
-	handle->next = pevent->handlers;
-	pevent->handlers = handle;
+	handle->next = tep->handlers;
+	tep->handlers = handle;
 	handle->context = context;
 
 	return TEP_REGISTER_SUCCESS;
@@ -6766,7 +6764,7 @@ static int handle_matches(struct event_handler *handler, int id,
 
 /**
  * tep_unregister_event_handler - unregister an existing event handler
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @id: the id of the event to unregister
  * @sys_name: the system name the handler belongs to
  * @event_name: the name of the event handler
@@ -6780,7 +6778,7 @@ static int handle_matches(struct event_handler *handler, int id,
  *
  * Returns 0 if handler was removed successfully, -1 if event was not found.
  */
-int tep_unregister_event_handler(struct tep_handle *pevent, int id,
+int tep_unregister_event_handler(struct tep_handle *tep, int id,
 				 const char *sys_name, const char *event_name,
 				 tep_event_handler_func func, void *context)
 {
@@ -6788,7 +6786,7 @@ int tep_unregister_event_handler(struct tep_handle *pevent, int id,
 	struct event_handler *handle;
 	struct event_handler **next;
 
-	event = search_event(pevent, id, sys_name, event_name);
+	event = search_event(tep, id, sys_name, event_name);
 	if (event == NULL)
 		goto not_found;
 
@@ -6802,7 +6800,7 @@ int tep_unregister_event_handler(struct tep_handle *pevent, int id,
 	}
 
 not_found:
-	for (next = &pevent->handlers; *next; next = &(*next)->next) {
+	for (next = &tep->handlers; *next; next = &(*next)->next) {
 		handle = *next;
 		if (handle_matches(handle, id, sys_name, event_name,
 				   func, context))
@@ -6819,7 +6817,7 @@ int tep_unregister_event_handler(struct tep_handle *pevent, int id,
 }
 
 /**
- * tep_alloc - create a pevent handle
+ * tep_alloc - create a tep handle
  */
 struct tep_handle *tep_alloc(void)
 {
@@ -6833,9 +6831,9 @@ struct tep_handle *tep_alloc(void)
 	return pevent;
 }
 
-void tep_ref(struct tep_handle *pevent)
+void tep_ref(struct tep_handle *tep)
 {
-	pevent->ref_count++;
+	tep->ref_count++;
 }
 
 int tep_get_ref(struct tep_handle *tep)
@@ -6885,10 +6883,10 @@ void tep_free_event(struct tep_event *event)
 }
 
 /**
- * tep_free - free a pevent handle
- * @pevent: the pevent handle to free
+ * tep_free - free a tep handle
+ * @tep: the tep handle to free
  */
-void tep_free(struct tep_handle *pevent)
+void tep_free(struct tep_handle *tep)
 {
 	struct cmdline_list *cmdlist, *cmdnext;
 	struct func_list *funclist, *funcnext;
@@ -6897,21 +6895,21 @@ void tep_free(struct tep_handle *pevent)
 	struct event_handler *handle;
 	int i;
 
-	if (!pevent)
+	if (!tep)
 		return;
 
-	cmdlist = pevent->cmdlist;
-	funclist = pevent->funclist;
-	printklist = pevent->printklist;
+	cmdlist = tep->cmdlist;
+	funclist = tep->funclist;
+	printklist = tep->printklist;
 
-	pevent->ref_count--;
-	if (pevent->ref_count)
+	tep->ref_count--;
+	if (tep->ref_count)
 		return;
 
-	if (pevent->cmdlines) {
-		for (i = 0; i < pevent->cmdline_count; i++)
-			free(pevent->cmdlines[i].comm);
-		free(pevent->cmdlines);
+	if (tep->cmdlines) {
+		for (i = 0; i < tep->cmdline_count; i++)
+			free(tep->cmdlines[i].comm);
+		free(tep->cmdlines);
 	}
 
 	while (cmdlist) {
@@ -6921,12 +6919,12 @@ void tep_free(struct tep_handle *pevent)
 		cmdlist = cmdnext;
 	}
 
-	if (pevent->func_map) {
-		for (i = 0; i < (int)pevent->func_count; i++) {
-			free(pevent->func_map[i].func);
-			free(pevent->func_map[i].mod);
+	if (tep->func_map) {
+		for (i = 0; i < (int)tep->func_count; i++) {
+			free(tep->func_map[i].func);
+			free(tep->func_map[i].mod);
 		}
-		free(pevent->func_map);
+		free(tep->func_map);
 	}
 
 	while (funclist) {
@@ -6937,16 +6935,16 @@ void tep_free(struct tep_handle *pevent)
 		funclist = funcnext;
 	}
 
-	while (pevent->func_handlers) {
-		func_handler = pevent->func_handlers;
-		pevent->func_handlers = func_handler->next;
+	while (tep->func_handlers) {
+		func_handler = tep->func_handlers;
+		tep->func_handlers = func_handler->next;
 		free_func_handle(func_handler);
 	}
 
-	if (pevent->printk_map) {
-		for (i = 0; i < (int)pevent->printk_count; i++)
-			free(pevent->printk_map[i].printk);
-		free(pevent->printk_map);
+	if (tep->printk_map) {
+		for (i = 0; i < (int)tep->printk_count; i++)
+			free(tep->printk_map[i].printk);
+		free(tep->printk_map);
 	}
 
 	while (printklist) {
@@ -6956,24 +6954,24 @@ void tep_free(struct tep_handle *pevent)
 		printklist = printknext;
 	}
 
-	for (i = 0; i < pevent->nr_events; i++)
-		tep_free_event(pevent->events[i]);
+	for (i = 0; i < tep->nr_events; i++)
+		tep_free_event(tep->events[i]);
 
-	while (pevent->handlers) {
-		handle = pevent->handlers;
-		pevent->handlers = handle->next;
+	while (tep->handlers) {
+		handle = tep->handlers;
+		tep->handlers = handle->next;
 		free_handler(handle);
 	}
 
-	free(pevent->trace_clock);
-	free(pevent->events);
-	free(pevent->sort_events);
-	free(pevent->func_resolver);
+	free(tep->trace_clock);
+	free(tep->events);
+	free(tep->sort_events);
+	free(tep->func_resolver);
 
-	free(pevent);
+	free(tep);
 }
 
-void tep_unref(struct tep_handle *pevent)
+void tep_unref(struct tep_handle *tep)
 {
-	tep_free(pevent);
+	tep_free(tep);
 }
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index d473dc557978..2720a30ef86b 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -64,8 +64,8 @@ typedef int (*tep_event_handler_func)(struct trace_seq *s,
 				      struct tep_event *event,
 				      void *context);
 
-typedef int (*tep_plugin_load_func)(struct tep_handle *pevent);
-typedef int (*tep_plugin_unload_func)(struct tep_handle *pevent);
+typedef int (*tep_plugin_load_func)(struct tep_handle *tep);
+typedef int (*tep_plugin_unload_func)(struct tep_handle *tep);
 
 struct tep_plugin_option {
 	struct tep_plugin_option	*next;
@@ -85,12 +85,12 @@ struct tep_plugin_option {
  * TEP_PLUGIN_LOADER:  (required)
  *   The function name to initialized the plugin.
  *
- *   int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+ *   int TEP_PLUGIN_LOADER(struct tep_handle *tep)
  *
  * TEP_PLUGIN_UNLOADER:  (optional)
  *   The function called just before unloading
  *
- *   int TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+ *   int TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
  *
  * TEP_PLUGIN_OPTIONS:  (optional)
  *   Plugin options that can be set before loading
@@ -393,9 +393,9 @@ struct tep_plugin_list;
 
 #define INVALID_PLUGIN_LIST_OPTION	((char **)((unsigned long)-1))
 
-struct tep_plugin_list *tep_load_plugins(struct tep_handle *pevent);
+struct tep_plugin_list *tep_load_plugins(struct tep_handle *tep);
 void tep_unload_plugins(struct tep_plugin_list *plugin_list,
-			struct tep_handle *pevent);
+			struct tep_handle *tep);
 char **tep_plugin_list_options(void);
 void tep_plugin_free_options_list(char **list);
 int tep_plugin_add_options(const char *name,
@@ -410,7 +410,7 @@ typedef char *(tep_func_resolver_t)(void *priv,
 				    unsigned long long *addrp, char **modp);
 void tep_set_flag(struct tep_handle *tep, int flag);
 void tep_clear_flag(struct tep_handle *tep, enum tep_flag flag);
-bool tep_check_flags(struct tep_handle *tep, enum tep_flag flags);
+bool tep_test_flag(struct tep_handle *tep, enum tep_flag flags);
 
 static inline int tep_is_bigendian(void)
 {
@@ -430,37 +430,37 @@ enum trace_flag_type {
 	TRACE_FLAG_SOFTIRQ		= 0x10,
 };
 
-int tep_set_function_resolver(struct tep_handle *pevent,
+int tep_set_function_resolver(struct tep_handle *tep,
 			      tep_func_resolver_t *func, void *priv);
-void tep_reset_function_resolver(struct tep_handle *pevent);
-int tep_register_comm(struct tep_handle *pevent, const char *comm, int pid);
-int tep_override_comm(struct tep_handle *pevent, const char *comm, int pid);
-int tep_register_trace_clock(struct tep_handle *pevent, const char *trace_clock);
-int tep_register_function(struct tep_handle *pevent, char *name,
+void tep_reset_function_resolver(struct tep_handle *tep);
+int tep_register_comm(struct tep_handle *tep, const char *comm, int pid);
+int tep_override_comm(struct tep_handle *tep, const char *comm, int pid);
+int tep_register_trace_clock(struct tep_handle *tep, const char *trace_clock);
+int tep_register_function(struct tep_handle *tep, char *name,
 			  unsigned long long addr, char *mod);
-int tep_register_print_string(struct tep_handle *pevent, const char *fmt,
+int tep_register_print_string(struct tep_handle *tep, const char *fmt,
 			      unsigned long long addr);
-bool tep_is_pid_registered(struct tep_handle *pevent, int pid);
+bool tep_is_pid_registered(struct tep_handle *tep, int pid);
 
-void tep_print_event_task(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event_task(struct tep_handle *tep, struct trace_seq *s,
 			  struct tep_event *event,
 			  struct tep_record *record);
-void tep_print_event_time(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event_time(struct tep_handle *tep, struct trace_seq *s,
 			  struct tep_event *event,
 			  struct tep_record *record,
 			  bool use_trace_clock);
-void tep_print_event_data(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event_data(struct tep_handle *tep, struct trace_seq *s,
 			  struct tep_event *event,
 			  struct tep_record *record);
-void tep_print_event(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event(struct tep_handle *tep, struct trace_seq *s,
 		     struct tep_record *record, bool use_trace_clock);
 
-int tep_parse_header_page(struct tep_handle *pevent, char *buf, unsigned long size,
+int tep_parse_header_page(struct tep_handle *tep, char *buf, unsigned long size,
 			  int long_size);
 
-enum tep_errno tep_parse_event(struct tep_handle *pevent, const char *buf,
+enum tep_errno tep_parse_event(struct tep_handle *tep, const char *buf,
 			       unsigned long size, const char *sys);
-enum tep_errno tep_parse_format(struct tep_handle *pevent,
+enum tep_errno tep_parse_format(struct tep_handle *tep,
 				struct tep_event **eventp,
 				const char *buf,
 				unsigned long size, const char *sys);
@@ -492,50 +492,50 @@ enum tep_reg_handler {
 	TEP_REGISTER_SUCCESS_OVERWRITE,
 };
 
-int tep_register_event_handler(struct tep_handle *pevent, int id,
+int tep_register_event_handler(struct tep_handle *tep, int id,
 			       const char *sys_name, const char *event_name,
 			       tep_event_handler_func func, void *context);
-int tep_unregister_event_handler(struct tep_handle *pevent, int id,
+int tep_unregister_event_handler(struct tep_handle *tep, int id,
 				 const char *sys_name, const char *event_name,
 				 tep_event_handler_func func, void *context);
-int tep_register_print_function(struct tep_handle *pevent,
+int tep_register_print_function(struct tep_handle *tep,
 				tep_func_handler func,
 				enum tep_func_arg_type ret_type,
 				char *name, ...);
-int tep_unregister_print_function(struct tep_handle *pevent,
+int tep_unregister_print_function(struct tep_handle *tep,
 				  tep_func_handler func, char *name);
 
 struct tep_format_field *tep_find_common_field(struct tep_event *event, const char *name);
 struct tep_format_field *tep_find_field(struct tep_event *event, const char *name);
 struct tep_format_field *tep_find_any_field(struct tep_event *event, const char *name);
 
-const char *tep_find_function(struct tep_handle *pevent, unsigned long long addr);
+const char *tep_find_function(struct tep_handle *tep, unsigned long long addr);
 unsigned long long
-tep_find_function_address(struct tep_handle *pevent, unsigned long long addr);
-unsigned long long tep_read_number(struct tep_handle *pevent, const void *ptr, int size);
+tep_find_function_address(struct tep_handle *tep, unsigned long long addr);
+unsigned long long tep_read_number(struct tep_handle *tep, const void *ptr, int size);
 int tep_read_number_field(struct tep_format_field *field, const void *data,
 			  unsigned long long *value);
 
 struct tep_event *tep_get_first_event(struct tep_handle *tep);
 int tep_get_events_count(struct tep_handle *tep);
-struct tep_event *tep_find_event(struct tep_handle *pevent, int id);
+struct tep_event *tep_find_event(struct tep_handle *tep, int id);
 
 struct tep_event *
-tep_find_event_by_name(struct tep_handle *pevent, const char *sys, const char *name);
+tep_find_event_by_name(struct tep_handle *tep, const char *sys, const char *name);
 struct tep_event *
-tep_find_event_by_record(struct tep_handle *pevent, struct tep_record *record);
+tep_find_event_by_record(struct tep_handle *tep, struct tep_record *record);
 
-void tep_data_latency_format(struct tep_handle *pevent,
+void tep_data_latency_format(struct tep_handle *tep,
 			     struct trace_seq *s, struct tep_record *record);
-int tep_data_type(struct tep_handle *pevent, struct tep_record *rec);
-int tep_data_pid(struct tep_handle *pevent, struct tep_record *rec);
-int tep_data_preempt_count(struct tep_handle *pevent, struct tep_record *rec);
-int tep_data_flags(struct tep_handle *pevent, struct tep_record *rec);
-const char *tep_data_comm_from_pid(struct tep_handle *pevent, int pid);
+int tep_data_type(struct tep_handle *tep, struct tep_record *rec);
+int tep_data_pid(struct tep_handle *tep, struct tep_record *rec);
+int tep_data_preempt_count(struct tep_handle *tep, struct tep_record *rec);
+int tep_data_flags(struct tep_handle *tep, struct tep_record *rec);
+const char *tep_data_comm_from_pid(struct tep_handle *tep, int pid);
 struct tep_cmdline;
-struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *pevent, const char *comm,
+struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *tep, const char *comm,
 					   struct tep_cmdline *next);
-int tep_cmdline_pid(struct tep_handle *pevent, struct tep_cmdline *cmdline);
+int tep_cmdline_pid(struct tep_handle *tep, struct tep_cmdline *cmdline);
 
 void tep_print_field(struct trace_seq *s, void *data,
 		     struct tep_format_field *field);
@@ -543,11 +543,10 @@ void tep_print_fields(struct trace_seq *s, void *data,
 		      int size __maybe_unused, struct tep_event *event);
 void tep_event_info(struct trace_seq *s, struct tep_event *event,
 		    struct tep_record *record);
-int tep_strerror(struct tep_handle *pevent, enum tep_errno errnum,
+int tep_strerror(struct tep_handle *tep, enum tep_errno errnum,
 		 char *buf, size_t buflen);
 
-struct tep_event **tep_list_events(struct tep_handle *tep,
-				   enum tep_event_sort_type);
+struct tep_event **tep_list_events(struct tep_handle *tep, enum tep_event_sort_type);
 struct tep_event **tep_list_events_copy(struct tep_handle *tep,
 					enum tep_event_sort_type);
 struct tep_format_field **tep_event_common_fields(struct tep_event *event);
@@ -557,28 +556,28 @@ enum tep_endian {
         TEP_LITTLE_ENDIAN = 0,
         TEP_BIG_ENDIAN
 };
-int tep_get_cpus(struct tep_handle *pevent);
-void tep_set_cpus(struct tep_handle *pevent, int cpus);
-int tep_get_long_size(struct tep_handle *pevent);
-void tep_set_long_size(struct tep_handle *pevent, int long_size);
-int tep_get_page_size(struct tep_handle *pevent);
-void tep_set_page_size(struct tep_handle *pevent, int _page_size);
-bool tep_is_file_bigendian(struct tep_handle *pevent);
-void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian);
-bool tep_is_local_bigendian(struct tep_handle *pevent);
-void tep_set_local_bigendian(struct tep_handle *pevent, enum tep_endian endian);
-bool tep_is_latency_format(struct tep_handle *pevent);
-void tep_set_latency_format(struct tep_handle *pevent, int lat);
-int tep_get_header_page_size(struct tep_handle *pevent);
+int tep_get_cpus(struct tep_handle *tep);
+void tep_set_cpus(struct tep_handle *tep, int cpus);
+int tep_get_long_size(struct tep_handle *tep);
+void tep_set_long_size(struct tep_handle *tep, int long_size);
+int tep_get_page_size(struct tep_handle *tep);
+void tep_set_page_size(struct tep_handle *tep, int _page_size);
+bool tep_is_file_bigendian(struct tep_handle *tep);
+void tep_set_file_bigendian(struct tep_handle *tep, enum tep_endian endian);
+bool tep_is_local_bigendian(struct tep_handle *tep);
+void tep_set_local_bigendian(struct tep_handle *tep, enum tep_endian endian);
+bool tep_is_latency_format(struct tep_handle *tep);
+void tep_set_latency_format(struct tep_handle *tep, int lat);
+int tep_get_header_page_size(struct tep_handle *tep);
 int tep_get_header_timestamp_size(struct tep_handle *tep);
 bool tep_is_old_format(struct tep_handle *tep);
 void tep_set_print_raw(struct tep_handle *tep, int print_raw);
 void tep_set_test_filters(struct tep_handle *tep, int test_filters);
 
 struct tep_handle *tep_alloc(void);
-void tep_free(struct tep_handle *pevent);
-void tep_ref(struct tep_handle *pevent);
-void tep_unref(struct tep_handle *pevent);
+void tep_free(struct tep_handle *tep);
+void tep_ref(struct tep_handle *tep);
+void tep_unref(struct tep_handle *tep);
 int tep_get_ref(struct tep_handle *tep);
 
 /* access to the internal parser */
@@ -590,8 +589,8 @@ const char *tep_get_input_buf(void);
 unsigned long long tep_get_input_buf_ptr(void);
 
 /* for debugging */
-void tep_print_funcs(struct tep_handle *pevent);
-void tep_print_printk(struct tep_handle *pevent);
+void tep_print_funcs(struct tep_handle *tep);
+void tep_print_printk(struct tep_handle *tep);
 
 /* ----------------------- filtering ----------------------- */
 
@@ -724,7 +723,7 @@ struct tep_event_filter {
 	char			error_buffer[TEP_FILTER_ERROR_BUFSZ];
 };
 
-struct tep_event_filter *tep_filter_alloc(struct tep_handle *pevent);
+struct tep_event_filter *tep_filter_alloc(struct tep_handle *tep);
 
 /* for backward compatibility */
 #define FILTER_NONE		TEP_ERRNO__NO_FILTER
diff --git a/tools/lib/traceevent/event-plugin.c b/tools/lib/traceevent/event-plugin.c
index e74f16c88398..d0488de0174a 100644
--- a/tools/lib/traceevent/event-plugin.c
+++ b/tools/lib/traceevent/event-plugin.c
@@ -419,16 +419,16 @@ load_plugins(struct tep_handle *pevent, const char *suffix,
 }
 
 struct tep_plugin_list*
-tep_load_plugins(struct tep_handle *pevent)
+tep_load_plugins(struct tep_handle *tep)
 {
 	struct tep_plugin_list *list = NULL;
 
-	load_plugins(pevent, ".so", load_plugin, &list);
+	load_plugins(tep, ".so", load_plugin, &list);
 	return list;
 }
 
 void
-tep_unload_plugins(struct tep_plugin_list *plugin_list, struct tep_handle *pevent)
+tep_unload_plugins(struct tep_plugin_list *plugin_list, struct tep_handle *tep)
 {
 	tep_plugin_unload_func func;
 	struct tep_plugin_list *list;
@@ -438,7 +438,7 @@ tep_unload_plugins(struct tep_plugin_list *plugin_list, struct tep_handle *peven
 		plugin_list = list->next;
 		func = dlsym(list->handle, TEP_PLUGIN_UNLOADER_NAME);
 		if (func)
-			func(pevent);
+			func(tep);
 		dlclose(list->handle);
 		free(list->name);
 		free(list);
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index 3320c0a0e343..5d8f9d9bc253 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -164,9 +164,9 @@ add_filter_type(struct tep_event_filter *filter, int id)
 
 /**
  * tep_filter_alloc - create a new event filter
- * @pevent: The pevent that this filter is associated with
+ * @tep: The tep that this filter is associated with
  */
-struct tep_event_filter *tep_filter_alloc(struct tep_handle *pevent)
+struct tep_event_filter *tep_filter_alloc(struct tep_handle *tep)
 {
 	struct tep_event_filter *filter;
 
@@ -175,8 +175,8 @@ struct tep_event_filter *tep_filter_alloc(struct tep_handle *pevent)
 		return NULL;
 
 	memset(filter, 0, sizeof(*filter));
-	filter->pevent = pevent;
-	tep_ref(pevent);
+	filter->pevent = tep;
+	tep_ref(tep);
 
 	return filter;
 }
diff --git a/tools/lib/traceevent/plugin_cfg80211.c b/tools/lib/traceevent/plugin_cfg80211.c
index a51b366f47da..3d43b56a6c98 100644
--- a/tools/lib/traceevent/plugin_cfg80211.c
+++ b/tools/lib/traceevent/plugin_cfg80211.c
@@ -25,9 +25,9 @@ process___le16_to_cpup(struct trace_seq *s, unsigned long long *args)
 	return val ? (long long) le16toh(*val) : 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_print_function(pevent,
+	tep_register_print_function(tep,
 				    process___le16_to_cpup,
 				    TEP_FUNC_ARG_INT,
 				    "__le16_to_cpup",
@@ -36,8 +36,8 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_print_function(pevent, process___le16_to_cpup,
+	tep_unregister_print_function(tep, process___le16_to_cpup,
 				      "__le16_to_cpup");
 }
diff --git a/tools/lib/traceevent/plugin_function.c b/tools/lib/traceevent/plugin_function.c
index a73eca34a8f9..e93f33bd705f 100644
--- a/tools/lib/traceevent/plugin_function.c
+++ b/tools/lib/traceevent/plugin_function.c
@@ -164,9 +164,9 @@ static int function_handler(struct trace_seq *s, struct tep_record *record,
 	return 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_event_handler(pevent, -1, "ftrace", "function",
+	tep_register_event_handler(tep, -1, "ftrace", "function",
 				   function_handler, NULL);
 
 	tep_plugin_add_options("ftrace", plugin_options);
@@ -174,11 +174,11 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
 	int i, x;
 
-	tep_unregister_event_handler(pevent, -1, "ftrace", "function",
+	tep_unregister_event_handler(tep, -1, "ftrace", "function",
 				     function_handler, NULL);
 
 	for (i = 0; i <= cpus; i++) {
diff --git a/tools/lib/traceevent/plugin_hrtimer.c b/tools/lib/traceevent/plugin_hrtimer.c
index 5db5e401275f..bb434e0ed03a 100644
--- a/tools/lib/traceevent/plugin_hrtimer.c
+++ b/tools/lib/traceevent/plugin_hrtimer.c
@@ -67,23 +67,23 @@ static int timer_start_handler(struct trace_seq *s,
 	return 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_event_handler(pevent, -1,
+	tep_register_event_handler(tep, -1,
 				   "timer", "hrtimer_expire_entry",
 				   timer_expire_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "timer", "hrtimer_start",
+	tep_register_event_handler(tep, -1, "timer", "hrtimer_start",
 				   timer_start_handler, NULL);
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_event_handler(pevent, -1,
+	tep_unregister_event_handler(tep, -1,
 				     "timer", "hrtimer_expire_entry",
 				     timer_expire_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "timer", "hrtimer_start",
+	tep_unregister_event_handler(tep, -1, "timer", "hrtimer_start",
 				     timer_start_handler, NULL);
 }
diff --git a/tools/lib/traceevent/plugin_jbd2.c b/tools/lib/traceevent/plugin_jbd2.c
index a5e34135dd6a..04fc125f38cb 100644
--- a/tools/lib/traceevent/plugin_jbd2.c
+++ b/tools/lib/traceevent/plugin_jbd2.c
@@ -48,16 +48,16 @@ process_jiffies_to_msecs(struct trace_seq *s, unsigned long long *args)
 	return jiffies;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_print_function(pevent,
+	tep_register_print_function(tep,
 				    process_jbd2_dev_to_name,
 				    TEP_FUNC_ARG_STRING,
 				    "jbd2_dev_to_name",
 				    TEP_FUNC_ARG_INT,
 				    TEP_FUNC_ARG_VOID);
 
-	tep_register_print_function(pevent,
+	tep_register_print_function(tep,
 				    process_jiffies_to_msecs,
 				    TEP_FUNC_ARG_LONG,
 				    "jiffies_to_msecs",
@@ -66,11 +66,11 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_print_function(pevent, process_jbd2_dev_to_name,
+	tep_unregister_print_function(tep, process_jbd2_dev_to_name,
 				      "jbd2_dev_to_name");
 
-	tep_unregister_print_function(pevent, process_jiffies_to_msecs,
+	tep_unregister_print_function(tep, process_jiffies_to_msecs,
 				      "jiffies_to_msecs");
 }
diff --git a/tools/lib/traceevent/plugin_kmem.c b/tools/lib/traceevent/plugin_kmem.c
index 0e3c601f9ed1..c09bafdd8377 100644
--- a/tools/lib/traceevent/plugin_kmem.c
+++ b/tools/lib/traceevent/plugin_kmem.c
@@ -49,47 +49,47 @@ static int call_site_handler(struct trace_seq *s, struct tep_record *record,
 	return 1;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_event_handler(pevent, -1, "kmem", "kfree",
+	tep_register_event_handler(tep, -1, "kmem", "kfree",
 				   call_site_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kmem", "kmalloc",
+	tep_register_event_handler(tep, -1, "kmem", "kmalloc",
 				   call_site_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kmem", "kmalloc_node",
+	tep_register_event_handler(tep, -1, "kmem", "kmalloc_node",
 				   call_site_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kmem", "kmem_cache_alloc",
+	tep_register_event_handler(tep, -1, "kmem", "kmem_cache_alloc",
 				   call_site_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kmem",
+	tep_register_event_handler(tep, -1, "kmem",
 				   "kmem_cache_alloc_node",
 				   call_site_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kmem", "kmem_cache_free",
+	tep_register_event_handler(tep, -1, "kmem", "kmem_cache_free",
 				   call_site_handler, NULL);
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_event_handler(pevent, -1, "kmem", "kfree",
+	tep_unregister_event_handler(tep, -1, "kmem", "kfree",
 				     call_site_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kmem", "kmalloc",
+	tep_unregister_event_handler(tep, -1, "kmem", "kmalloc",
 				     call_site_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kmem", "kmalloc_node",
+	tep_unregister_event_handler(tep, -1, "kmem", "kmalloc_node",
 				     call_site_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kmem", "kmem_cache_alloc",
+	tep_unregister_event_handler(tep, -1, "kmem", "kmem_cache_alloc",
 				     call_site_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kmem",
+	tep_unregister_event_handler(tep, -1, "kmem",
 				     "kmem_cache_alloc_node",
 				     call_site_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kmem", "kmem_cache_free",
+	tep_unregister_event_handler(tep, -1, "kmem", "kmem_cache_free",
 				     call_site_handler, NULL);
 }
diff --git a/tools/lib/traceevent/plugin_kvm.c b/tools/lib/traceevent/plugin_kvm.c
index 688e5d97d7a7..472298c2b531 100644
--- a/tools/lib/traceevent/plugin_kvm.c
+++ b/tools/lib/traceevent/plugin_kvm.c
@@ -445,40 +445,40 @@ process_is_writable_pte(struct trace_seq *s, unsigned long long *args)
 	return pte & PT_WRITABLE_MASK;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
 	init_disassembler();
 
-	tep_register_event_handler(pevent, -1, "kvm", "kvm_exit",
+	tep_register_event_handler(tep, -1, "kvm", "kvm_exit",
 				   kvm_exit_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvm", "kvm_emulate_insn",
+	tep_register_event_handler(tep, -1, "kvm", "kvm_emulate_insn",
 				   kvm_emulate_insn_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvm", "kvm_nested_vmexit",
+	tep_register_event_handler(tep, -1, "kvm", "kvm_nested_vmexit",
 				   kvm_nested_vmexit_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvm", "kvm_nested_vmexit_inject",
+	tep_register_event_handler(tep, -1, "kvm", "kvm_nested_vmexit_inject",
 				   kvm_nested_vmexit_inject_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_get_page",
+	tep_register_event_handler(tep, -1, "kvmmmu", "kvm_mmu_get_page",
 				   kvm_mmu_get_page_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_sync_page",
+	tep_register_event_handler(tep, -1, "kvmmmu", "kvm_mmu_sync_page",
 				   kvm_mmu_print_role, NULL);
 
-	tep_register_event_handler(pevent, -1,
+	tep_register_event_handler(tep, -1,
 				   "kvmmmu", "kvm_mmu_unsync_page",
 				   kvm_mmu_print_role, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_zap_page",
+	tep_register_event_handler(tep, -1, "kvmmmu", "kvm_mmu_zap_page",
 				   kvm_mmu_print_role, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvmmmu",
+	tep_register_event_handler(tep, -1, "kvmmmu",
 			"kvm_mmu_prepare_zap_page", kvm_mmu_print_role,
 			NULL);
 
-	tep_register_print_function(pevent,
+	tep_register_print_function(tep,
 				    process_is_writable_pte,
 				    TEP_FUNC_ARG_INT,
 				    "is_writable_pte",
@@ -487,37 +487,37 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_event_handler(pevent, -1, "kvm", "kvm_exit",
+	tep_unregister_event_handler(tep, -1, "kvm", "kvm_exit",
 				     kvm_exit_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvm", "kvm_emulate_insn",
+	tep_unregister_event_handler(tep, -1, "kvm", "kvm_emulate_insn",
 				     kvm_emulate_insn_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvm", "kvm_nested_vmexit",
+	tep_unregister_event_handler(tep, -1, "kvm", "kvm_nested_vmexit",
 				     kvm_nested_vmexit_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvm", "kvm_nested_vmexit_inject",
+	tep_unregister_event_handler(tep, -1, "kvm", "kvm_nested_vmexit_inject",
 				     kvm_nested_vmexit_inject_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_get_page",
+	tep_unregister_event_handler(tep, -1, "kvmmmu", "kvm_mmu_get_page",
 				     kvm_mmu_get_page_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_sync_page",
+	tep_unregister_event_handler(tep, -1, "kvmmmu", "kvm_mmu_sync_page",
 				     kvm_mmu_print_role, NULL);
 
-	tep_unregister_event_handler(pevent, -1,
+	tep_unregister_event_handler(tep, -1,
 				     "kvmmmu", "kvm_mmu_unsync_page",
 				     kvm_mmu_print_role, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_zap_page",
+	tep_unregister_event_handler(tep, -1, "kvmmmu", "kvm_mmu_zap_page",
 				     kvm_mmu_print_role, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvmmmu",
+	tep_unregister_event_handler(tep, -1, "kvmmmu",
 			"kvm_mmu_prepare_zap_page", kvm_mmu_print_role,
 			NULL);
 
-	tep_unregister_print_function(pevent, process_is_writable_pte,
+	tep_unregister_print_function(tep, process_is_writable_pte,
 				      "is_writable_pte");
 }
diff --git a/tools/lib/traceevent/plugin_mac80211.c b/tools/lib/traceevent/plugin_mac80211.c
index e38b9477aad2..884303c26b5c 100644
--- a/tools/lib/traceevent/plugin_mac80211.c
+++ b/tools/lib/traceevent/plugin_mac80211.c
@@ -87,17 +87,17 @@ static int drv_bss_info_changed(struct trace_seq *s,
 	return 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_event_handler(pevent, -1, "mac80211",
+	tep_register_event_handler(tep, -1, "mac80211",
 				   "drv_bss_info_changed",
 				   drv_bss_info_changed, NULL);
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_event_handler(pevent, -1, "mac80211",
+	tep_unregister_event_handler(tep, -1, "mac80211",
 				     "drv_bss_info_changed",
 				     drv_bss_info_changed, NULL);
 }
diff --git a/tools/lib/traceevent/plugin_sched_switch.c b/tools/lib/traceevent/plugin_sched_switch.c
index 834c9e378ff8..701c22913cf8 100644
--- a/tools/lib/traceevent/plugin_sched_switch.c
+++ b/tools/lib/traceevent/plugin_sched_switch.c
@@ -135,27 +135,27 @@ static int sched_switch_handler(struct trace_seq *s,
 	return 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_event_handler(pevent, -1, "sched", "sched_switch",
+	tep_register_event_handler(tep, -1, "sched", "sched_switch",
 				   sched_switch_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "sched", "sched_wakeup",
+	tep_register_event_handler(tep, -1, "sched", "sched_wakeup",
 				   sched_wakeup_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "sched", "sched_wakeup_new",
+	tep_register_event_handler(tep, -1, "sched", "sched_wakeup_new",
 				   sched_wakeup_handler, NULL);
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_event_handler(pevent, -1, "sched", "sched_switch",
+	tep_unregister_event_handler(tep, -1, "sched", "sched_switch",
 				     sched_switch_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "sched", "sched_wakeup",
+	tep_unregister_event_handler(tep, -1, "sched", "sched_wakeup",
 				     sched_wakeup_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "sched", "sched_wakeup_new",
+	tep_unregister_event_handler(tep, -1, "sched", "sched_wakeup_new",
 				     sched_wakeup_handler, NULL);
 }
diff --git a/tools/lib/traceevent/plugin_scsi.c b/tools/lib/traceevent/plugin_scsi.c
index 4eba25cc1431..5d0387a4b65a 100644
--- a/tools/lib/traceevent/plugin_scsi.c
+++ b/tools/lib/traceevent/plugin_scsi.c
@@ -414,9 +414,9 @@ unsigned long long process_scsi_trace_parse_cdb(struct trace_seq *s,
 	return 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_print_function(pevent,
+	tep_register_print_function(tep,
 				    process_scsi_trace_parse_cdb,
 				    TEP_FUNC_ARG_STRING,
 				    "scsi_trace_parse_cdb",
@@ -427,8 +427,8 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_print_function(pevent, process_scsi_trace_parse_cdb,
+	tep_unregister_print_function(tep, process_scsi_trace_parse_cdb,
 				      "scsi_trace_parse_cdb");
 }
diff --git a/tools/lib/traceevent/plugin_xen.c b/tools/lib/traceevent/plugin_xen.c
index bc0496e4c296..993b208d0323 100644
--- a/tools/lib/traceevent/plugin_xen.c
+++ b/tools/lib/traceevent/plugin_xen.c
@@ -120,9 +120,9 @@ unsigned long long process_xen_hypercall_name(struct trace_seq *s,
 	return 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_print_function(pevent,
+	tep_register_print_function(tep,
 				    process_xen_hypercall_name,
 				    TEP_FUNC_ARG_STRING,
 				    "xen_hypercall_name",
@@ -131,8 +131,8 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_print_function(pevent, process_xen_hypercall_name,
+	tep_unregister_print_function(tep, process_xen_hypercall_name,
 				      "xen_hypercall_name");
 }
-- 
2.20.1



^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH 13/15] tools/perf,tools/lib/traceevent: Rename "pevent" member of struct tep_event to "tep"
  2019-04-01 16:43 [PATCH 00/15] tools/lib/traceevent: Continuing on the path to a stand alone library Steven Rostedt
                   ` (11 preceding siblings ...)
  2019-04-01 16:43 ` [PATCH 12/15] tools/lib/traceevent: Rename input arguments of libtraceevent APIs from pevent to tep Steven Rostedt
@ 2019-04-01 16:43 ` Steven Rostedt
  2019-04-05 11:49   ` [tip:perf/core] perf tools, tools lib traceevent: " tip-bot for Tzvetomir Stoyanov
  2019-04-01 16:43 ` [PATCH 14/15] tools/perf,tools/lib/traceevent: Rename "pevent" member of struct tep_event_filter " Steven Rostedt
                   ` (2 subsequent siblings)
  15 siblings, 1 reply; 55+ messages in thread
From: Steven Rostedt @ 2019-04-01 16:43 UTC (permalink / raw)
  To: linux-kernel
  Cc: Arnaldo Carvalho de Melo, Ingo Molnar, Jiri Olsa, Namhyung Kim,
	Andrew Morton, Tzvetomir Stoyanov

From: Tzvetomir Stoyanov <tstoyanov@vmware.com>

The member "pevent" of the struct tep_event is renamed to "tep". This makes
the struct consistent with the chosen naming convention:
tep (trace event parser), instead of the old pevent.

Link: http://lore.kernel.org/linux-trace-devel/20190401132111.13727-3-tstoyanov@vmware.com

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
 tools/lib/traceevent/event-parse.c            | 32 +++++++++----------
 tools/lib/traceevent/event-parse.h            |  2 +-
 tools/lib/traceevent/parse-filter.c           |  6 ++--
 tools/lib/traceevent/plugin_function.c        |  2 +-
 tools/lib/traceevent/plugin_kmem.c            |  4 +--
 tools/lib/traceevent/plugin_kvm.c             |  4 +--
 tools/lib/traceevent/plugin_sched_switch.c    |  2 +-
 tools/perf/builtin-kmem.c                     |  2 +-
 tools/perf/util/data-convert-bt.c             |  4 +--
 tools/perf/util/python.c                      |  2 +-
 .../util/scripting-engines/trace-event-perl.c |  2 +-
 .../scripting-engines/trace-event-python.c    |  2 +-
 tools/perf/util/trace-event-parse.c           |  2 +-
 13 files changed, 33 insertions(+), 33 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index ceefa9b3d726..70ea638156f2 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -804,7 +804,7 @@ static int add_event(struct tep_handle *pevent, struct tep_event *event)
 	pevent->events[i] = event;
 	pevent->nr_events++;
 
-	event->pevent = pevent;
+	event->tep = pevent;
 
 	return 0;
 }
@@ -1656,8 +1656,8 @@ static int event_read_fields(struct tep_event *event, struct tep_format_field **
 			else if (field->flags & TEP_FIELD_IS_STRING)
 				field->elementsize = 1;
 			else if (field->flags & TEP_FIELD_IS_LONG)
-				field->elementsize = event->pevent ?
-						     event->pevent->long_size :
+				field->elementsize = event->tep ?
+						     event->tep->long_size :
 						     sizeof(long);
 		} else
 			field->elementsize = field->size;
@@ -3075,7 +3075,7 @@ process_function(struct tep_event *event, struct tep_print_arg *arg,
 		return process_dynamic_array_len(event, arg, tok);
 	}
 
-	func = find_func_handler(event->pevent, token);
+	func = find_func_handler(event->tep, token);
 	if (func) {
 		free_token(token);
 		return process_func_handler(event, func, arg, tok);
@@ -3405,7 +3405,7 @@ int tep_read_number_field(struct tep_format_field *field, const void *data,
 	case 2:
 	case 4:
 	case 8:
-		*value = tep_read_number(field->event->pevent,
+		*value = tep_read_number(field->event->tep,
 					 data + field->offset, field->size);
 		return 0;
 	default:
@@ -3566,7 +3566,7 @@ tep_find_event_by_name(struct tep_handle *tep,
 static unsigned long long
 eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg *arg)
 {
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	unsigned long long val = 0;
 	unsigned long long left, right;
 	struct tep_print_arg *typearg = NULL;
@@ -3907,7 +3907,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 			  struct tep_event *event, const char *format,
 			  int len_arg, struct tep_print_arg *arg)
 {
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	struct tep_print_flag_sym *flag;
 	struct tep_format_field *field;
 	struct printk_map *printk;
@@ -4256,7 +4256,7 @@ static void free_args(struct tep_print_arg *args)
 
 static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, struct tep_event *event)
 {
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	struct tep_format_field *field, *ip_field;
 	struct tep_print_arg *args, *arg, **next;
 	unsigned long long ip, val;
@@ -4434,7 +4434,7 @@ static char *
 get_bprint_format(void *data, int size __maybe_unused,
 		  struct tep_event *event)
 {
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	unsigned long long addr;
 	struct tep_format_field *field;
 	struct printk_map *printk;
@@ -4835,7 +4835,7 @@ void tep_print_field(struct trace_seq *s, void *data,
 {
 	unsigned long long val;
 	unsigned int offset, len, i;
-	struct tep_handle *pevent = field->event->pevent;
+	struct tep_handle *pevent = field->event->tep;
 
 	if (field->flags & TEP_FIELD_IS_ARRAY) {
 		offset = field->offset;
@@ -4910,7 +4910,7 @@ void tep_print_fields(struct trace_seq *s, void *data,
 
 static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_event *event)
 {
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	struct tep_print_fmt *print_fmt = &event->print_fmt;
 	struct tep_print_arg *arg = print_fmt->args;
 	struct tep_print_arg *args = NULL;
@@ -5424,7 +5424,7 @@ void tep_event_info(struct trace_seq *s, struct tep_event *event,
 {
 	int print_pretty = 1;
 
-	if (event->pevent->print_raw || (event->flags & TEP_EVENT_FL_PRINTRAW))
+	if (event->tep->print_raw || (event->flags & TEP_EVENT_FL_PRINTRAW))
 		tep_print_fields(s, record->data, record->size, event);
 	else {
 
@@ -6163,7 +6163,7 @@ enum tep_errno __tep_parse_format(struct tep_event **eventp,
 	}
 
 	/* Add pevent to event so that it can be referenced */
-	event->pevent = pevent;
+	event->tep = pevent;
 
 	ret = event_read_format(event);
 	if (ret < 0) {
@@ -6357,8 +6357,8 @@ void *tep_get_field_raw(struct trace_seq *s, struct tep_event *event,
 
 	offset = field->offset;
 	if (field->flags & TEP_FIELD_IS_DYNAMIC) {
-		offset = tep_read_number(event->pevent,
-					    data + offset, field->size);
+		offset = tep_read_number(event->tep,
+					 data + offset, field->size);
 		*len = offset >> 16;
 		offset &= 0xffff;
 	} else
@@ -6492,7 +6492,7 @@ int tep_print_func_field(struct trace_seq *s, const char *fmt,
 			 struct tep_record *record, int err)
 {
 	struct tep_format_field *field = tep_find_field(event, name);
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	unsigned long long val;
 	struct func_map *func;
 	char tmp[128];
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 2720a30ef86b..de7ace173e75 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -278,7 +278,7 @@ struct tep_print_fmt {
 };
 
 struct tep_event {
-	struct tep_handle	*pevent;
+	struct tep_handle	*tep;
 	char			*name;
 	int			id;
 	int			flags;
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index 5d8f9d9bc253..123358209297 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -1528,8 +1528,8 @@ get_comm(struct tep_event *event, struct tep_record *record)
 	const char *comm;
 	int pid;
 
-	pid = tep_data_pid(event->pevent, record);
-	comm = tep_data_comm_from_pid(event->pevent, pid);
+	pid = tep_data_pid(event->tep, record);
+	comm = tep_data_comm_from_pid(event->tep, pid);
 	return comm;
 }
 
@@ -1727,7 +1727,7 @@ static const char *get_field_str(struct tep_filter_arg *arg, struct tep_record *
 
 	} else {
 		event = arg->str.field->event;
-		pevent = event->pevent;
+		pevent = event->tep;
 		addr = get_value(event, arg->str.field, record);
 
 		if (arg->str.field->flags & (TEP_FIELD_IS_POINTER | TEP_FIELD_IS_LONG))
diff --git a/tools/lib/traceevent/plugin_function.c b/tools/lib/traceevent/plugin_function.c
index e93f33bd705f..d6a8df060614 100644
--- a/tools/lib/traceevent/plugin_function.c
+++ b/tools/lib/traceevent/plugin_function.c
@@ -126,7 +126,7 @@ static int add_and_get_index(const char *parent, const char *child, int cpu)
 static int function_handler(struct trace_seq *s, struct tep_record *record,
 			    struct tep_event *event, void *context)
 {
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	unsigned long long function;
 	unsigned long long pfunction;
 	const char *func;
diff --git a/tools/lib/traceevent/plugin_kmem.c b/tools/lib/traceevent/plugin_kmem.c
index c09bafdd8377..edaec5d962c3 100644
--- a/tools/lib/traceevent/plugin_kmem.c
+++ b/tools/lib/traceevent/plugin_kmem.c
@@ -39,11 +39,11 @@ static int call_site_handler(struct trace_seq *s, struct tep_record *record,
 	if (tep_read_number_field(field, data, &val))
 		return 1;
 
-	func = tep_find_function(event->pevent, val);
+	func = tep_find_function(event->tep, val);
 	if (!func)
 		return 1;
 
-	addr = tep_find_function_address(event->pevent, val);
+	addr = tep_find_function_address(event->tep, val);
 
 	trace_seq_printf(s, "(%s+0x%x) ", func, (int)(val - addr));
 	return 1;
diff --git a/tools/lib/traceevent/plugin_kvm.c b/tools/lib/traceevent/plugin_kvm.c
index 472298c2b531..c8e623065a7e 100644
--- a/tools/lib/traceevent/plugin_kvm.c
+++ b/tools/lib/traceevent/plugin_kvm.c
@@ -389,8 +389,8 @@ static int kvm_mmu_print_role(struct trace_seq *s, struct tep_record *record,
 	 * We can only use the structure if file is of the same
 	 * endianness.
 	 */
-	if (tep_is_file_bigendian(event->pevent) ==
-	    tep_is_local_bigendian(event->pevent)) {
+	if (tep_is_file_bigendian(event->tep) ==
+	    tep_is_local_bigendian(event->tep)) {
 
 		trace_seq_printf(s, "%u q%u%s %s%s %spae %snxe %swp%s%s%s",
 				 role.level,
diff --git a/tools/lib/traceevent/plugin_sched_switch.c b/tools/lib/traceevent/plugin_sched_switch.c
index 701c22913cf8..957389a0ff7a 100644
--- a/tools/lib/traceevent/plugin_sched_switch.c
+++ b/tools/lib/traceevent/plugin_sched_switch.c
@@ -62,7 +62,7 @@ static void write_and_save_comm(struct tep_format_field *field,
 	comm = &s->buffer[len];
 
 	/* Help out the comm to ids. This will handle dups */
-	tep_register_comm(field->event->pevent, comm, pid);
+	tep_register_comm(field->event->tep, comm, pid);
 }
 
 static int sched_wakeup_handler(struct trace_seq *s,
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index fa520f4b8095..b80eee455111 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -1975,7 +1975,7 @@ int cmd_kmem(int argc, const char **argv)
 			goto out_delete;
 		}
 
-		kmem_page_size = tep_get_page_size(evsel->tp_format->pevent);
+		kmem_page_size = tep_get_page_size(evsel->tp_format->tep);
 		symbol_conf.use_callchain = true;
 	}
 
diff --git a/tools/perf/util/data-convert-bt.c b/tools/perf/util/data-convert-bt.c
index 26af43ad9ddd..e0311c9750ad 100644
--- a/tools/perf/util/data-convert-bt.c
+++ b/tools/perf/util/data-convert-bt.c
@@ -310,7 +310,7 @@ static int add_tracepoint_field_value(struct ctf_writer *cw,
 	if (flags & TEP_FIELD_IS_DYNAMIC) {
 		unsigned long long tmp_val;
 
-		tmp_val = tep_read_number(fmtf->event->pevent,
+		tmp_val = tep_read_number(fmtf->event->tep,
 					  data + offset, len);
 		offset = tmp_val;
 		len = offset >> 16;
@@ -354,7 +354,7 @@ static int add_tracepoint_field_value(struct ctf_writer *cw,
 			unsigned long long value_int;
 
 			value_int = tep_read_number(
-					fmtf->event->pevent,
+					fmtf->event->tep,
 					data + offset + i * len, len);
 
 			if (!(flags & TEP_FIELD_IS_SIGNED))
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index dda0ac978b1e..6aa7e2352e16 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -342,7 +342,7 @@ static bool is_tracepoint(struct pyrf_event *pevent)
 static PyObject*
 tracepoint_field(struct pyrf_event *pe, struct tep_format_field *field)
 {
-	struct tep_handle *pevent = field->event->pevent;
+	struct tep_handle *pevent = field->event->tep;
 	void *data = pe->sample.raw_data;
 	PyObject *ret = NULL;
 	unsigned long long val;
diff --git a/tools/perf/util/scripting-engines/trace-event-perl.c b/tools/perf/util/scripting-engines/trace-event-perl.c
index 5f06378a482b..61aa7f3df915 100644
--- a/tools/perf/util/scripting-engines/trace-event-perl.c
+++ b/tools/perf/util/scripting-engines/trace-event-perl.c
@@ -372,7 +372,7 @@ static void perl_process_tracepoint(struct perf_sample *sample,
 	ns = nsecs - s * NSEC_PER_SEC;
 
 	scripting_context->event_data = data;
-	scripting_context->pevent = evsel->tp_format->pevent;
+	scripting_context->pevent = evsel->tp_format->tep;
 
 	ENTER;
 	SAVETMPS;
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index 09604c6508f0..22f52b669871 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -837,7 +837,7 @@ static void python_process_tracepoint(struct perf_sample *sample,
 	ns = nsecs - s * NSEC_PER_SEC;
 
 	scripting_context->event_data = data;
-	scripting_context->pevent = evsel->tp_format->pevent;
+	scripting_context->pevent = evsel->tp_format->tep;
 
 	context = _PyCapsule_New(scripting_context, NULL, NULL);
 
diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index ad74be1f0e42..863955e4094e 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -111,7 +111,7 @@ raw_field_value(struct tep_event *event, const char *name, void *data)
 
 unsigned long long read_size(struct tep_event *event, void *ptr, int size)
 {
-	return tep_read_number(event->pevent, ptr, size);
+	return tep_read_number(event->tep, ptr, size);
 }
 
 void event_format__fprintf(struct tep_event *event,
-- 
2.20.1



^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH 14/15] tools/perf,tools/lib/traceevent: Rename "pevent" member of struct tep_event_filter to "tep"
  2019-04-01 16:43 [PATCH 00/15] tools/lib/traceevent: Continuing on the path to a stand alone library Steven Rostedt
                   ` (12 preceding siblings ...)
  2019-04-01 16:43 ` [PATCH 13/15] tools/perf,tools/lib/traceevent: Rename "pevent" member of struct tep_event to "tep" Steven Rostedt
@ 2019-04-01 16:43 ` Steven Rostedt
  2019-04-05 11:50   ` [tip:perf/core] perf tools, tools lib traceevent: " tip-bot for Tzvetomir Stoyanov
  2019-04-01 16:43 ` [PATCH 15/15] tools/lib/traceevent: Rename input arguments and local variables of libtraceevent from pevent to tep Steven Rostedt
  2019-04-01 18:17 ` [PATCH 00/15] tools/lib/traceevent: Continuing on the path to a stand alone library Arnaldo Carvalho de Melo
  15 siblings, 1 reply; 55+ messages in thread
From: Steven Rostedt @ 2019-04-01 16:43 UTC (permalink / raw)
  To: linux-kernel
  Cc: Arnaldo Carvalho de Melo, Ingo Molnar, Jiri Olsa, Namhyung Kim,
	Andrew Morton, Tzvetomir Stoyanov

From: Tzvetomir Stoyanov <tstoyanov@vmware.com>

The member "pevent" of the struct tep_event_filter is renamed to "tep".
This makes the struct consistent with the chosen naming convention:
tep (trace event parser), instead of the old pevent.

Link: http://lore.kernel.org/linux-trace-devel/20190401132111.13727-4-tstoyanov@vmware.com

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
 tools/lib/traceevent/event-parse.h  |  2 +-
 tools/lib/traceevent/parse-filter.c | 14 +++++++-------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index de7ace173e75..642f68ab5fb2 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -717,7 +717,7 @@ struct tep_filter_type {
 #define TEP_FILTER_ERROR_BUFSZ  1024
 
 struct tep_event_filter {
-	struct tep_handle	*pevent;
+	struct tep_handle	*tep;
 	int			filters;
 	struct tep_filter_type	*event_filters;
 	char			error_buffer[TEP_FILTER_ERROR_BUFSZ];
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index 123358209297..6a4d5d1dd1cd 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -154,7 +154,7 @@ add_filter_type(struct tep_event_filter *filter, int id)
 
 	filter_type = &filter->event_filters[i];
 	filter_type->event_id = id;
-	filter_type->event = tep_find_event(filter->pevent, id);
+	filter_type->event = tep_find_event(filter->tep, id);
 	filter_type->filter = NULL;
 
 	filter->filters++;
@@ -175,7 +175,7 @@ struct tep_event_filter *tep_filter_alloc(struct tep_handle *tep)
 		return NULL;
 
 	memset(filter, 0, sizeof(*filter));
-	filter->pevent = tep;
+	filter->tep = tep;
 	tep_ref(tep);
 
 	return filter;
@@ -1257,7 +1257,7 @@ static void filter_init_error_buf(struct tep_event_filter *filter)
 enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
 					 const char *filter_str)
 {
-	struct tep_handle *pevent = filter->pevent;
+	struct tep_handle *pevent = filter->tep;
 	struct event_list *event;
 	struct event_list *events = NULL;
 	const char *filter_start;
@@ -1377,7 +1377,7 @@ int tep_filter_strerror(struct tep_event_filter *filter, enum tep_errno err,
 		return 0;
 	}
 
-	return tep_strerror(filter->pevent, err, buf, buflen);
+	return tep_strerror(filter->tep, err, buf, buflen);
 }
 
 /**
@@ -1440,7 +1440,7 @@ void tep_filter_reset(struct tep_event_filter *filter)
 
 void tep_filter_free(struct tep_event_filter *filter)
 {
-	tep_unref(filter->pevent);
+	tep_unref(filter->tep);
 
 	tep_filter_reset(filter);
 
@@ -1462,7 +1462,7 @@ static int copy_filter_type(struct tep_event_filter *filter,
 	/* Can't assume that the pevent's are the same */
 	sys = filter_type->event->system;
 	name = filter_type->event->name;
-	event = tep_find_event_by_name(filter->pevent, sys, name);
+	event = tep_find_event_by_name(filter->tep, sys, name);
 	if (!event)
 		return -1;
 
@@ -1872,7 +1872,7 @@ int tep_event_filtered(struct tep_event_filter *filter, int event_id)
 enum tep_errno tep_filter_match(struct tep_event_filter *filter,
 				struct tep_record *record)
 {
-	struct tep_handle *pevent = filter->pevent;
+	struct tep_handle *pevent = filter->tep;
 	struct tep_filter_type *filter_type;
 	int event_id;
 	int ret;
-- 
2.20.1



^ permalink raw reply	[flat|nested] 55+ messages in thread

* [PATCH 15/15] tools/lib/traceevent: Rename input arguments and local variables of libtraceevent from pevent to tep
  2019-04-01 16:43 [PATCH 00/15] tools/lib/traceevent: Continuing on the path to a stand alone library Steven Rostedt
                   ` (13 preceding siblings ...)
  2019-04-01 16:43 ` [PATCH 14/15] tools/perf,tools/lib/traceevent: Rename "pevent" member of struct tep_event_filter " Steven Rostedt
@ 2019-04-01 16:43 ` Steven Rostedt
  2019-04-05 11:51   ` [tip:perf/core] tools lib traceevent: " tip-bot for Tzvetomir Stoyanov
  2019-04-01 18:17 ` [PATCH 00/15] tools/lib/traceevent: Continuing on the path to a stand alone library Arnaldo Carvalho de Melo
  15 siblings, 1 reply; 55+ messages in thread
From: Steven Rostedt @ 2019-04-01 16:43 UTC (permalink / raw)
  To: linux-kernel
  Cc: Arnaldo Carvalho de Melo, Ingo Molnar, Jiri Olsa, Namhyung Kim,
	Andrew Morton, Tzvetomir Stoyanov

From: Tzvetomir Stoyanov <tstoyanov@vmware.com>

"pevent" to "tep" renaming of:
 - all "pevent" input arguments of libtraceevent internal functions.
 - all local "pevent" variables of libtraceevent.
This makes the implementation consistent with the chosen naming convention,
tep (trace event parser), and will avoid any confusion with the old pevent name

Link: http://lore.kernel.org/linux-trace-devel/20190401132111.13727-5-tstoyanov@vmware.com

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
 tools/lib/traceevent/event-parse.c     | 306 ++++++++++++-------------
 tools/lib/traceevent/event-plugin.c    |  24 +-
 tools/lib/traceevent/parse-filter.c    |  24 +-
 tools/lib/traceevent/plugin_function.c |   6 +-
 4 files changed, 180 insertions(+), 180 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 70ea638156f2..7d4faaecd243 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -148,14 +148,14 @@ struct cmdline_list {
 	int			pid;
 };
 
-static int cmdline_init(struct tep_handle *pevent)
+static int cmdline_init(struct tep_handle *tep)
 {
-	struct cmdline_list *cmdlist = pevent->cmdlist;
+	struct cmdline_list *cmdlist = tep->cmdlist;
 	struct cmdline_list *item;
 	struct tep_cmdline *cmdlines;
 	int i;
 
-	cmdlines = malloc(sizeof(*cmdlines) * pevent->cmdline_count);
+	cmdlines = malloc(sizeof(*cmdlines) * tep->cmdline_count);
 	if (!cmdlines)
 		return -1;
 
@@ -169,15 +169,15 @@ static int cmdline_init(struct tep_handle *pevent)
 		free(item);
 	}
 
-	qsort(cmdlines, pevent->cmdline_count, sizeof(*cmdlines), cmdline_cmp);
+	qsort(cmdlines, tep->cmdline_count, sizeof(*cmdlines), cmdline_cmp);
 
-	pevent->cmdlines = cmdlines;
-	pevent->cmdlist = NULL;
+	tep->cmdlines = cmdlines;
+	tep->cmdlist = NULL;
 
 	return 0;
 }
 
-static const char *find_cmdline(struct tep_handle *pevent, int pid)
+static const char *find_cmdline(struct tep_handle *tep, int pid)
 {
 	const struct tep_cmdline *comm;
 	struct tep_cmdline key;
@@ -185,13 +185,13 @@ static const char *find_cmdline(struct tep_handle *pevent, int pid)
 	if (!pid)
 		return "<idle>";
 
-	if (!pevent->cmdlines && cmdline_init(pevent))
+	if (!tep->cmdlines && cmdline_init(tep))
 		return "<not enough memory for cmdlines!>";
 
 	key.pid = pid;
 
-	comm = bsearch(&key, pevent->cmdlines, pevent->cmdline_count,
-		       sizeof(*pevent->cmdlines), cmdline_cmp);
+	comm = bsearch(&key, tep->cmdlines, tep->cmdline_count,
+		       sizeof(*tep->cmdlines), cmdline_cmp);
 
 	if (comm)
 		return comm->comm;
@@ -232,10 +232,10 @@ bool tep_is_pid_registered(struct tep_handle *tep, int pid)
  * we must add this pid. This is much slower than when cmdlines
  * are added before the array is initialized.
  */
-static int add_new_comm(struct tep_handle *pevent,
+static int add_new_comm(struct tep_handle *tep,
 			const char *comm, int pid, bool override)
 {
-	struct tep_cmdline *cmdlines = pevent->cmdlines;
+	struct tep_cmdline *cmdlines = tep->cmdlines;
 	struct tep_cmdline *cmdline;
 	struct tep_cmdline key;
 	char *new_comm;
@@ -246,8 +246,8 @@ static int add_new_comm(struct tep_handle *pevent,
 	/* avoid duplicates */
 	key.pid = pid;
 
-	cmdline = bsearch(&key, pevent->cmdlines, pevent->cmdline_count,
-		       sizeof(*pevent->cmdlines), cmdline_cmp);
+	cmdline = bsearch(&key, tep->cmdlines, tep->cmdline_count,
+			  sizeof(*tep->cmdlines), cmdline_cmp);
 	if (cmdline) {
 		if (!override) {
 			errno = EEXIST;
@@ -264,26 +264,26 @@ static int add_new_comm(struct tep_handle *pevent,
 		return 0;
 	}
 
-	cmdlines = realloc(cmdlines, sizeof(*cmdlines) * (pevent->cmdline_count + 1));
+	cmdlines = realloc(cmdlines, sizeof(*cmdlines) * (tep->cmdline_count + 1));
 	if (!cmdlines) {
 		errno = ENOMEM;
 		return -1;
 	}
 
-	cmdlines[pevent->cmdline_count].comm = strdup(comm);
-	if (!cmdlines[pevent->cmdline_count].comm) {
+	cmdlines[tep->cmdline_count].comm = strdup(comm);
+	if (!cmdlines[tep->cmdline_count].comm) {
 		free(cmdlines);
 		errno = ENOMEM;
 		return -1;
 	}
 
-	cmdlines[pevent->cmdline_count].pid = pid;
+	cmdlines[tep->cmdline_count].pid = pid;
 		
-	if (cmdlines[pevent->cmdline_count].comm)
-		pevent->cmdline_count++;
+	if (cmdlines[tep->cmdline_count].comm)
+		tep->cmdline_count++;
 
-	qsort(cmdlines, pevent->cmdline_count, sizeof(*cmdlines), cmdline_cmp);
-	pevent->cmdlines = cmdlines;
+	qsort(cmdlines, tep->cmdline_count, sizeof(*cmdlines), cmdline_cmp);
+	tep->cmdlines = cmdlines;
 
 	return 0;
 }
@@ -408,18 +408,18 @@ static int func_bcmp(const void *a, const void *b)
 	return 1;
 }
 
-static int func_map_init(struct tep_handle *pevent)
+static int func_map_init(struct tep_handle *tep)
 {
 	struct func_list *funclist;
 	struct func_list *item;
 	struct func_map *func_map;
 	int i;
 
-	func_map = malloc(sizeof(*func_map) * (pevent->func_count + 1));
+	func_map = malloc(sizeof(*func_map) * (tep->func_count + 1));
 	if (!func_map)
 		return -1;
 
-	funclist = pevent->funclist;
+	funclist = tep->funclist;
 
 	i = 0;
 	while (funclist) {
@@ -432,34 +432,34 @@ static int func_map_init(struct tep_handle *pevent)
 		free(item);
 	}
 
-	qsort(func_map, pevent->func_count, sizeof(*func_map), func_cmp);
+	qsort(func_map, tep->func_count, sizeof(*func_map), func_cmp);
 
 	/*
 	 * Add a special record at the end.
 	 */
-	func_map[pevent->func_count].func = NULL;
-	func_map[pevent->func_count].addr = 0;
-	func_map[pevent->func_count].mod = NULL;
+	func_map[tep->func_count].func = NULL;
+	func_map[tep->func_count].addr = 0;
+	func_map[tep->func_count].mod = NULL;
 
-	pevent->func_map = func_map;
-	pevent->funclist = NULL;
+	tep->func_map = func_map;
+	tep->funclist = NULL;
 
 	return 0;
 }
 
 static struct func_map *
-__find_func(struct tep_handle *pevent, unsigned long long addr)
+__find_func(struct tep_handle *tep, unsigned long long addr)
 {
 	struct func_map *func;
 	struct func_map key;
 
-	if (!pevent->func_map)
-		func_map_init(pevent);
+	if (!tep->func_map)
+		func_map_init(tep);
 
 	key.addr = addr;
 
-	func = bsearch(&key, pevent->func_map, pevent->func_count,
-		       sizeof(*pevent->func_map), func_bcmp);
+	func = bsearch(&key, tep->func_map, tep->func_count,
+		       sizeof(*tep->func_map), func_bcmp);
 
 	return func;
 }
@@ -510,18 +510,18 @@ void tep_reset_function_resolver(struct tep_handle *tep)
 }
 
 static struct func_map *
-find_func(struct tep_handle *pevent, unsigned long long addr)
+find_func(struct tep_handle *tep, unsigned long long addr)
 {
 	struct func_map *map;
 
-	if (!pevent->func_resolver)
-		return __find_func(pevent, addr);
+	if (!tep->func_resolver)
+		return __find_func(tep, addr);
 
-	map = &pevent->func_resolver->map;
+	map = &tep->func_resolver->map;
 	map->mod  = NULL;
 	map->addr = addr;
-	map->func = pevent->func_resolver->func(pevent->func_resolver->priv,
-						&map->addr, &map->mod);
+	map->func = tep->func_resolver->func(tep->func_resolver->priv,
+					     &map->addr, &map->mod);
 	if (map->func == NULL)
 		return NULL;
 
@@ -662,18 +662,18 @@ static int printk_cmp(const void *a, const void *b)
 	return 0;
 }
 
-static int printk_map_init(struct tep_handle *pevent)
+static int printk_map_init(struct tep_handle *tep)
 {
 	struct printk_list *printklist;
 	struct printk_list *item;
 	struct printk_map *printk_map;
 	int i;
 
-	printk_map = malloc(sizeof(*printk_map) * (pevent->printk_count + 1));
+	printk_map = malloc(sizeof(*printk_map) * (tep->printk_count + 1));
 	if (!printk_map)
 		return -1;
 
-	printklist = pevent->printklist;
+	printklist = tep->printklist;
 
 	i = 0;
 	while (printklist) {
@@ -685,27 +685,27 @@ static int printk_map_init(struct tep_handle *pevent)
 		free(item);
 	}
 
-	qsort(printk_map, pevent->printk_count, sizeof(*printk_map), printk_cmp);
+	qsort(printk_map, tep->printk_count, sizeof(*printk_map), printk_cmp);
 
-	pevent->printk_map = printk_map;
-	pevent->printklist = NULL;
+	tep->printk_map = printk_map;
+	tep->printklist = NULL;
 
 	return 0;
 }
 
 static struct printk_map *
-find_printk(struct tep_handle *pevent, unsigned long long addr)
+find_printk(struct tep_handle *tep, unsigned long long addr)
 {
 	struct printk_map *printk;
 	struct printk_map key;
 
-	if (!pevent->printk_map && printk_map_init(pevent))
+	if (!tep->printk_map && printk_map_init(tep))
 		return NULL;
 
 	key.addr = addr;
 
-	printk = bsearch(&key, pevent->printk_map, pevent->printk_count,
-			 sizeof(*pevent->printk_map), printk_cmp);
+	printk = bsearch(&key, tep->printk_map, tep->printk_count,
+			 sizeof(*tep->printk_map), printk_cmp);
 
 	return printk;
 }
@@ -782,29 +782,29 @@ static struct tep_event *alloc_event(void)
 	return calloc(1, sizeof(struct tep_event));
 }
 
-static int add_event(struct tep_handle *pevent, struct tep_event *event)
+static int add_event(struct tep_handle *tep, struct tep_event *event)
 {
 	int i;
-	struct tep_event **events = realloc(pevent->events, sizeof(event) *
-					    (pevent->nr_events + 1));
+	struct tep_event **events = realloc(tep->events, sizeof(event) *
+					    (tep->nr_events + 1));
 	if (!events)
 		return -1;
 
-	pevent->events = events;
+	tep->events = events;
 
-	for (i = 0; i < pevent->nr_events; i++) {
-		if (pevent->events[i]->id > event->id)
+	for (i = 0; i < tep->nr_events; i++) {
+		if (tep->events[i]->id > event->id)
 			break;
 	}
-	if (i < pevent->nr_events)
-		memmove(&pevent->events[i + 1],
-			&pevent->events[i],
-			sizeof(event) * (pevent->nr_events - i));
+	if (i < tep->nr_events)
+		memmove(&tep->events[i + 1],
+			&tep->events[i],
+			sizeof(event) * (tep->nr_events - i));
 
-	pevent->events[i] = event;
-	pevent->nr_events++;
+	tep->events[i] = event;
+	tep->nr_events++;
 
-	event->tep = pevent;
+	event->tep = tep;
 
 	return 0;
 }
@@ -2941,14 +2941,14 @@ process_bitmask(struct tep_event *event __maybe_unused, struct tep_print_arg *ar
 }
 
 static struct tep_function_handler *
-find_func_handler(struct tep_handle *pevent, char *func_name)
+find_func_handler(struct tep_handle *tep, char *func_name)
 {
 	struct tep_function_handler *func;
 
-	if (!pevent)
+	if (!tep)
 		return NULL;
 
-	for (func = pevent->func_handlers; func; func = func->next) {
+	for (func = tep->func_handlers; func; func = func->next) {
 		if (strcmp(func->name, func_name) == 0)
 			break;
 	}
@@ -2956,12 +2956,12 @@ find_func_handler(struct tep_handle *pevent, char *func_name)
 	return func;
 }
 
-static void remove_func_handler(struct tep_handle *pevent, char *func_name)
+static void remove_func_handler(struct tep_handle *tep, char *func_name)
 {
 	struct tep_function_handler *func;
 	struct tep_function_handler **next;
 
-	next = &pevent->func_handlers;
+	next = &tep->func_handlers;
 	while ((func = *next)) {
 		if (strcmp(func->name, func_name) == 0) {
 			*next = func->next;
@@ -3413,7 +3413,7 @@ int tep_read_number_field(struct tep_format_field *field, const void *data,
 	}
 }
 
-static int get_common_info(struct tep_handle *pevent,
+static int get_common_info(struct tep_handle *tep,
 			   const char *type, int *offset, int *size)
 {
 	struct tep_event *event;
@@ -3423,12 +3423,12 @@ static int get_common_info(struct tep_handle *pevent,
 	 * All events should have the same common elements.
 	 * Pick any event to find where the type is;
 	 */
-	if (!pevent->events) {
+	if (!tep->events) {
 		do_warning("no event_list!");
 		return -1;
 	}
 
-	event = pevent->events[0];
+	event = tep->events[0];
 	field = tep_find_common_field(event, type);
 	if (!field)
 		return -1;
@@ -3439,58 +3439,58 @@ static int get_common_info(struct tep_handle *pevent,
 	return 0;
 }
 
-static int __parse_common(struct tep_handle *pevent, void *data,
+static int __parse_common(struct tep_handle *tep, void *data,
 			  int *size, int *offset, const char *name)
 {
 	int ret;
 
 	if (!*size) {
-		ret = get_common_info(pevent, name, offset, size);
+		ret = get_common_info(tep, name, offset, size);
 		if (ret < 0)
 			return ret;
 	}
-	return tep_read_number(pevent, data + *offset, *size);
+	return tep_read_number(tep, data + *offset, *size);
 }
 
-static int trace_parse_common_type(struct tep_handle *pevent, void *data)
+static int trace_parse_common_type(struct tep_handle *tep, void *data)
 {
-	return __parse_common(pevent, data,
-			      &pevent->type_size, &pevent->type_offset,
+	return __parse_common(tep, data,
+			      &tep->type_size, &tep->type_offset,
 			      "common_type");
 }
 
-static int parse_common_pid(struct tep_handle *pevent, void *data)
+static int parse_common_pid(struct tep_handle *tep, void *data)
 {
-	return __parse_common(pevent, data,
-			      &pevent->pid_size, &pevent->pid_offset,
+	return __parse_common(tep, data,
+			      &tep->pid_size, &tep->pid_offset,
 			      "common_pid");
 }
 
-static int parse_common_pc(struct tep_handle *pevent, void *data)
+static int parse_common_pc(struct tep_handle *tep, void *data)
 {
-	return __parse_common(pevent, data,
-			      &pevent->pc_size, &pevent->pc_offset,
+	return __parse_common(tep, data,
+			      &tep->pc_size, &tep->pc_offset,
 			      "common_preempt_count");
 }
 
-static int parse_common_flags(struct tep_handle *pevent, void *data)
+static int parse_common_flags(struct tep_handle *tep, void *data)
 {
-	return __parse_common(pevent, data,
-			      &pevent->flags_size, &pevent->flags_offset,
+	return __parse_common(tep, data,
+			      &tep->flags_size, &tep->flags_offset,
 			      "common_flags");
 }
 
-static int parse_common_lock_depth(struct tep_handle *pevent, void *data)
+static int parse_common_lock_depth(struct tep_handle *tep, void *data)
 {
-	return __parse_common(pevent, data,
-			      &pevent->ld_size, &pevent->ld_offset,
+	return __parse_common(tep, data,
+			      &tep->ld_size, &tep->ld_offset,
 			      "common_lock_depth");
 }
 
-static int parse_common_migrate_disable(struct tep_handle *pevent, void *data)
+static int parse_common_migrate_disable(struct tep_handle *tep, void *data)
 {
-	return __parse_common(pevent, data,
-			      &pevent->ld_size, &pevent->ld_offset,
+	return __parse_common(tep, data,
+			      &tep->ld_size, &tep->ld_offset,
 			      "common_migrate_disable");
 }
 
@@ -3566,7 +3566,7 @@ tep_find_event_by_name(struct tep_handle *tep,
 static unsigned long long
 eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg *arg)
 {
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	unsigned long long val = 0;
 	unsigned long long left, right;
 	struct tep_print_arg *typearg = NULL;
@@ -3588,7 +3588,7 @@ eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg
 			
 		}
 		/* must be a number */
-		val = tep_read_number(pevent, data + arg->field.field->offset,
+		val = tep_read_number(tep, data + arg->field.field->offset,
 				      arg->field.field->size);
 		break;
 	case TEP_PRINT_FLAGS:
@@ -3628,11 +3628,11 @@ eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg
 			}
 
 			/* Default to long size */
-			field_size = pevent->long_size;
+			field_size = tep->long_size;
 
 			switch (larg->type) {
 			case TEP_PRINT_DYNAMIC_ARRAY:
-				offset = tep_read_number(pevent,
+				offset = tep_read_number(tep,
 						   data + larg->dynarray.field->offset,
 						   larg->dynarray.field->size);
 				if (larg->dynarray.field->elementsize)
@@ -3661,7 +3661,7 @@ eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg
 			default:
 				goto default_op; /* oops, all bets off */
 			}
-			val = tep_read_number(pevent,
+			val = tep_read_number(tep,
 					      data + offset, field_size);
 			if (typearg)
 				val = eval_type(val, typearg, 1);
@@ -3762,7 +3762,7 @@ eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg
 		}
 		break;
 	case TEP_PRINT_DYNAMIC_ARRAY_LEN:
-		offset = tep_read_number(pevent,
+		offset = tep_read_number(tep,
 					 data + arg->dynarray.field->offset,
 					 arg->dynarray.field->size);
 		/*
@@ -3774,7 +3774,7 @@ eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg
 		break;
 	case TEP_PRINT_DYNAMIC_ARRAY:
 		/* Without [], we pass the address to the dynamic data */
-		offset = tep_read_number(pevent,
+		offset = tep_read_number(tep,
 					 data + arg->dynarray.field->offset,
 					 arg->dynarray.field->size);
 		/*
@@ -3849,7 +3849,7 @@ static void print_str_to_seq(struct trace_seq *s, const char *format,
 		trace_seq_printf(s, format, str);
 }
 
-static void print_bitmask_to_seq(struct tep_handle *pevent,
+static void print_bitmask_to_seq(struct tep_handle *tep,
 				 struct trace_seq *s, const char *format,
 				 int len_arg, const void *data, int size)
 {
@@ -3881,7 +3881,7 @@ static void print_bitmask_to_seq(struct tep_handle *pevent,
 		 * In the kernel, this is an array of long words, thus
 		 * endianness is very important.
 		 */
-		if (pevent->file_bigendian)
+		if (tep->file_bigendian)
 			index = size - (len + 1);
 		else
 			index = len;
@@ -3907,7 +3907,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 			  struct tep_event *event, const char *format,
 			  int len_arg, struct tep_print_arg *arg)
 {
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	struct tep_print_flag_sym *flag;
 	struct tep_format_field *field;
 	struct printk_map *printk;
@@ -3944,7 +3944,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 		 * is a pointer.
 		 */
 		if (!(field->flags & TEP_FIELD_IS_ARRAY) &&
-		    field->size == pevent->long_size) {
+		    field->size == tep->long_size) {
 
 			/* Handle heterogeneous recording and processing
 			 * architectures
@@ -3959,12 +3959,12 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 			 * on 32-bit devices:
 			 * In this case, 64 bits must be read.
 			 */
-			addr = (pevent->long_size == 8) ?
+			addr = (tep->long_size == 8) ?
 				*(unsigned long long *)(data + field->offset) :
 				(unsigned long long)*(unsigned int *)(data + field->offset);
 
 			/* Check if it matches a print format */
-			printk = find_printk(pevent, addr);
+			printk = find_printk(tep, addr);
 			if (printk)
 				trace_seq_puts(s, printk->printk);
 			else
@@ -4021,7 +4021,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 	case TEP_PRINT_HEX_STR:
 		if (arg->hex.field->type == TEP_PRINT_DYNAMIC_ARRAY) {
 			unsigned long offset;
-			offset = tep_read_number(pevent,
+			offset = tep_read_number(tep,
 				data + arg->hex.field->dynarray.field->offset,
 				arg->hex.field->dynarray.field->size);
 			hex = data + (offset & 0xffff);
@@ -4052,7 +4052,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 			unsigned long offset;
 			struct tep_format_field *field =
 				arg->int_array.field->dynarray.field;
-			offset = tep_read_number(pevent,
+			offset = tep_read_number(tep,
 						 data + field->offset,
 						 field->size);
 			num = data + (offset & 0xffff);
@@ -4103,7 +4103,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 			f = tep_find_any_field(event, arg->string.string);
 			arg->string.offset = f->offset;
 		}
-		str_offset = tep_data2host4(pevent, *(unsigned int *)(data + arg->string.offset));
+		str_offset = tep_data2host4(tep, *(unsigned int *)(data + arg->string.offset));
 		str_offset &= 0xffff;
 		print_str_to_seq(s, format, len_arg, ((char *)data) + str_offset);
 		break;
@@ -4121,10 +4121,10 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 			f = tep_find_any_field(event, arg->bitmask.bitmask);
 			arg->bitmask.offset = f->offset;
 		}
-		bitmask_offset = tep_data2host4(pevent, *(unsigned int *)(data + arg->bitmask.offset));
+		bitmask_offset = tep_data2host4(tep, *(unsigned int *)(data + arg->bitmask.offset));
 		bitmask_size = bitmask_offset >> 16;
 		bitmask_offset &= 0xffff;
-		print_bitmask_to_seq(pevent, s, format, len_arg,
+		print_bitmask_to_seq(tep, s, format, len_arg,
 				     data + bitmask_offset, bitmask_size);
 		break;
 	}
@@ -4256,7 +4256,7 @@ static void free_args(struct tep_print_arg *args)
 
 static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, struct tep_event *event)
 {
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	struct tep_format_field *field, *ip_field;
 	struct tep_print_arg *args, *arg, **next;
 	unsigned long long ip, val;
@@ -4264,8 +4264,8 @@ static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, s
 	void *bptr;
 	int vsize = 0;
 
-	field = pevent->bprint_buf_field;
-	ip_field = pevent->bprint_ip_field;
+	field = tep->bprint_buf_field;
+	ip_field = tep->bprint_ip_field;
 
 	if (!field) {
 		field = tep_find_field(event, "buf");
@@ -4278,11 +4278,11 @@ static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, s
 			do_warning_event(event, "can't find ip field for binary printk");
 			return NULL;
 		}
-		pevent->bprint_buf_field = field;
-		pevent->bprint_ip_field = ip_field;
+		tep->bprint_buf_field = field;
+		tep->bprint_ip_field = ip_field;
 	}
 
-	ip = tep_read_number(pevent, data + ip_field->offset, ip_field->size);
+	ip = tep_read_number(tep, data + ip_field->offset, ip_field->size);
 
 	/*
 	 * The first arg is the IP pointer.
@@ -4360,7 +4360,7 @@ static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, s
 					vsize = 4;
 					break;
 				case 1:
-					vsize = pevent->long_size;
+					vsize = tep->long_size;
 					break;
 				case 2:
 					vsize = 8;
@@ -4377,7 +4377,7 @@ static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, s
 				/* the pointers are always 4 bytes aligned */
 				bptr = (void *)(((unsigned long)bptr + 3) &
 						~3);
-				val = tep_read_number(pevent, bptr, vsize);
+				val = tep_read_number(tep, bptr, vsize);
 				bptr += vsize;
 				arg = alloc_arg();
 				if (!arg) {
@@ -4434,13 +4434,13 @@ static char *
 get_bprint_format(void *data, int size __maybe_unused,
 		  struct tep_event *event)
 {
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	unsigned long long addr;
 	struct tep_format_field *field;
 	struct printk_map *printk;
 	char *format;
 
-	field = pevent->bprint_fmt_field;
+	field = tep->bprint_fmt_field;
 
 	if (!field) {
 		field = tep_find_field(event, "fmt");
@@ -4448,12 +4448,12 @@ get_bprint_format(void *data, int size __maybe_unused,
 			do_warning_event(event, "can't find format field for binary printk");
 			return NULL;
 		}
-		pevent->bprint_fmt_field = field;
+		tep->bprint_fmt_field = field;
 	}
 
-	addr = tep_read_number(pevent, data + field->offset, field->size);
+	addr = tep_read_number(tep, data + field->offset, field->size);
 
-	printk = find_printk(pevent, addr);
+	printk = find_printk(tep, addr);
 	if (!printk) {
 		if (asprintf(&format, "%%pf: (NO FORMAT FOUND at %llx)\n", addr) < 0)
 			return NULL;
@@ -4835,13 +4835,13 @@ void tep_print_field(struct trace_seq *s, void *data,
 {
 	unsigned long long val;
 	unsigned int offset, len, i;
-	struct tep_handle *pevent = field->event->tep;
+	struct tep_handle *tep = field->event->tep;
 
 	if (field->flags & TEP_FIELD_IS_ARRAY) {
 		offset = field->offset;
 		len = field->size;
 		if (field->flags & TEP_FIELD_IS_DYNAMIC) {
-			val = tep_read_number(pevent, data + offset, len);
+			val = tep_read_number(tep, data + offset, len);
 			offset = val;
 			len = offset >> 16;
 			offset &= 0xffff;
@@ -4861,7 +4861,7 @@ void tep_print_field(struct trace_seq *s, void *data,
 			field->flags &= ~TEP_FIELD_IS_STRING;
 		}
 	} else {
-		val = tep_read_number(pevent, data + field->offset,
+		val = tep_read_number(tep, data + field->offset,
 				      field->size);
 		if (field->flags & TEP_FIELD_IS_POINTER) {
 			trace_seq_printf(s, "0x%llx", val);
@@ -4910,7 +4910,7 @@ void tep_print_fields(struct trace_seq *s, void *data,
 
 static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_event *event)
 {
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	struct tep_print_fmt *print_fmt = &event->print_fmt;
 	struct tep_print_arg *arg = print_fmt->args;
 	struct tep_print_arg *args = NULL;
@@ -5002,7 +5002,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_e
 			case '-':
 				goto cont_process;
 			case 'p':
-				if (pevent->long_size == 4)
+				if (tep->long_size == 4)
 					ls = 1;
 				else
 					ls = 2;
@@ -5063,7 +5063,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_e
 				arg = arg->next;
 
 				if (show_func) {
-					func = find_func(pevent, val);
+					func = find_func(tep, val);
 					if (func) {
 						trace_seq_puts(s, func->func);
 						if (show_func == 'F')
@@ -5073,7 +5073,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_e
 						break;
 					}
 				}
-				if (pevent->long_size == 8 && ls == 1 &&
+				if (tep->long_size == 8 && ls == 1 &&
 				    sizeof(long) != 8) {
 					char *p;
 
@@ -5320,14 +5320,14 @@ const char *tep_data_comm_from_pid(struct tep_handle *tep, int pid)
 }
 
 static struct tep_cmdline *
-pid_from_cmdlist(struct tep_handle *pevent, const char *comm, struct tep_cmdline *next)
+pid_from_cmdlist(struct tep_handle *tep, const char *comm, struct tep_cmdline *next)
 {
 	struct cmdline_list *cmdlist = (struct cmdline_list *)next;
 
 	if (cmdlist)
 		cmdlist = cmdlist->next;
 	else
-		cmdlist = pevent->cmdlist;
+		cmdlist = tep->cmdlist;
 
 	while (cmdlist && strcmp(cmdlist->comm, comm) != 0)
 		cmdlist = cmdlist->next;
@@ -6078,11 +6078,11 @@ static void free_handler(struct event_handler *handle)
 	free(handle);
 }
 
-static int find_event_handle(struct tep_handle *pevent, struct tep_event *event)
+static int find_event_handle(struct tep_handle *tep, struct tep_event *event)
 {
 	struct event_handler *handle, **next;
 
-	for (next = &pevent->handlers; *next;
+	for (next = &tep->handlers; *next;
 	     next = &(*next)->next) {
 		handle = *next;
 		if (event_matches(event, handle->id,
@@ -6120,7 +6120,7 @@ static int find_event_handle(struct tep_handle *pevent, struct tep_event *event)
  * /sys/kernel/debug/tracing/events/.../.../format
  */
 enum tep_errno __tep_parse_format(struct tep_event **eventp,
-				  struct tep_handle *pevent, const char *buf,
+				  struct tep_handle *tep, const char *buf,
 				  unsigned long size, const char *sys)
 {
 	struct tep_event *event;
@@ -6162,8 +6162,8 @@ enum tep_errno __tep_parse_format(struct tep_event **eventp,
 		goto event_alloc_failed;
 	}
 
-	/* Add pevent to event so that it can be referenced */
-	event->tep = pevent;
+	/* Add tep to event so that it can be referenced */
+	event->tep = tep;
 
 	ret = event_read_format(event);
 	if (ret < 0) {
@@ -6175,7 +6175,7 @@ enum tep_errno __tep_parse_format(struct tep_event **eventp,
 	 * If the event has an override, don't print warnings if the event
 	 * print format fails to parse.
 	 */
-	if (pevent && find_event_handle(pevent, event))
+	if (tep && find_event_handle(tep, event))
 		show_warning = 0;
 
 	ret = event_read_print(event);
@@ -6227,18 +6227,18 @@ enum tep_errno __tep_parse_format(struct tep_event **eventp,
 }
 
 static enum tep_errno
-__parse_event(struct tep_handle *pevent,
+__parse_event(struct tep_handle *tep,
 	      struct tep_event **eventp,
 	      const char *buf, unsigned long size,
 	      const char *sys)
 {
-	int ret = __tep_parse_format(eventp, pevent, buf, size, sys);
+	int ret = __tep_parse_format(eventp, tep, buf, size, sys);
 	struct tep_event *event = *eventp;
 
 	if (event == NULL)
 		return ret;
 
-	if (pevent && add_event(pevent, event)) {
+	if (tep && add_event(tep, event)) {
 		ret = TEP_ERRNO__MEM_ALLOC_FAILED;
 		goto event_add_failed;
 	}
@@ -6492,7 +6492,7 @@ int tep_print_func_field(struct trace_seq *s, const char *fmt,
 			 struct tep_record *record, int err)
 {
 	struct tep_format_field *field = tep_find_field(event, name);
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	unsigned long long val;
 	struct func_map *func;
 	char tmp[128];
@@ -6503,7 +6503,7 @@ int tep_print_func_field(struct trace_seq *s, const char *fmt,
 	if (tep_read_number_field(field, record->data, &val))
 		goto failed;
 
-	func = find_func(pevent, val);
+	func = find_func(tep, val);
 
 	if (func)
 		snprintf(tmp, 128, "%s/0x%llx", func->func, func->addr - val);
@@ -6648,7 +6648,7 @@ int tep_unregister_print_function(struct tep_handle *tep,
 	return -1;
 }
 
-static struct tep_event *search_event(struct tep_handle *pevent, int id,
+static struct tep_event *search_event(struct tep_handle *tep, int id,
 				      const char *sys_name,
 				      const char *event_name)
 {
@@ -6656,7 +6656,7 @@ static struct tep_event *search_event(struct tep_handle *pevent, int id,
 
 	if (id >= 0) {
 		/* search by id */
-		event = tep_find_event(pevent, id);
+		event = tep_find_event(tep, id);
 		if (!event)
 			return NULL;
 		if (event_name && (strcmp(event_name, event->name) != 0))
@@ -6664,7 +6664,7 @@ static struct tep_event *search_event(struct tep_handle *pevent, int id,
 		if (sys_name && (strcmp(sys_name, event->system) != 0))
 			return NULL;
 	} else {
-		event = tep_find_event_by_name(pevent, sys_name, event_name);
+		event = tep_find_event_by_name(tep, sys_name, event_name);
 		if (!event)
 			return NULL;
 	}
@@ -6821,14 +6821,14 @@ int tep_unregister_event_handler(struct tep_handle *tep, int id,
  */
 struct tep_handle *tep_alloc(void)
 {
-	struct tep_handle *pevent = calloc(1, sizeof(*pevent));
+	struct tep_handle *tep = calloc(1, sizeof(*tep));
 
-	if (pevent) {
-		pevent->ref_count = 1;
-		pevent->host_bigendian = tep_is_bigendian();
+	if (tep) {
+		tep->ref_count = 1;
+		tep->host_bigendian = tep_is_bigendian();
 	}
 
-	return pevent;
+	return tep;
 }
 
 void tep_ref(struct tep_handle *tep)
diff --git a/tools/lib/traceevent/event-plugin.c b/tools/lib/traceevent/event-plugin.c
index d0488de0174a..8ca28de9337a 100644
--- a/tools/lib/traceevent/event-plugin.c
+++ b/tools/lib/traceevent/event-plugin.c
@@ -269,7 +269,7 @@ void tep_print_plugins(struct trace_seq *s,
 }
 
 static void
-load_plugin(struct tep_handle *pevent, const char *path,
+load_plugin(struct tep_handle *tep, const char *path,
 	    const char *file, void *data)
 {
 	struct tep_plugin_list **plugin_list = data;
@@ -316,7 +316,7 @@ load_plugin(struct tep_handle *pevent, const char *path,
 	*plugin_list = list;
 
 	pr_stat("registering plugin: %s", plugin);
-	func(pevent);
+	func(tep);
 	return;
 
  out_free:
@@ -324,9 +324,9 @@ load_plugin(struct tep_handle *pevent, const char *path,
 }
 
 static void
-load_plugins_dir(struct tep_handle *pevent, const char *suffix,
+load_plugins_dir(struct tep_handle *tep, const char *suffix,
 		 const char *path,
-		 void (*load_plugin)(struct tep_handle *pevent,
+		 void (*load_plugin)(struct tep_handle *tep,
 				     const char *path,
 				     const char *name,
 				     void *data),
@@ -359,15 +359,15 @@ load_plugins_dir(struct tep_handle *pevent, const char *suffix,
 		if (strcmp(name + (strlen(name) - strlen(suffix)), suffix) != 0)
 			continue;
 
-		load_plugin(pevent, path, name, data);
+		load_plugin(tep, path, name, data);
 	}
 
 	closedir(dir);
 }
 
 static void
-load_plugins(struct tep_handle *pevent, const char *suffix,
-	     void (*load_plugin)(struct tep_handle *pevent,
+load_plugins(struct tep_handle *tep, const char *suffix,
+	     void (*load_plugin)(struct tep_handle *tep,
 				 const char *path,
 				 const char *name,
 				 void *data),
@@ -378,7 +378,7 @@ load_plugins(struct tep_handle *pevent, const char *suffix,
 	char *envdir;
 	int ret;
 
-	if (pevent->flags & TEP_DISABLE_PLUGINS)
+	if (tep->flags & TEP_DISABLE_PLUGINS)
 		return;
 
 	/*
@@ -386,8 +386,8 @@ load_plugins(struct tep_handle *pevent, const char *suffix,
 	 * check that first.
 	 */
 #ifdef PLUGIN_DIR
-	if (!(pevent->flags & TEP_DISABLE_SYS_PLUGINS))
-		load_plugins_dir(pevent, suffix, PLUGIN_DIR,
+	if (!(tep->flags & TEP_DISABLE_SYS_PLUGINS))
+		load_plugins_dir(tep, suffix, PLUGIN_DIR,
 				 load_plugin, data);
 #endif
 
@@ -397,7 +397,7 @@ load_plugins(struct tep_handle *pevent, const char *suffix,
 	 */
 	envdir = getenv("TRACEEVENT_PLUGIN_DIR");
 	if (envdir)
-		load_plugins_dir(pevent, suffix, envdir, load_plugin, data);
+		load_plugins_dir(tep, suffix, envdir, load_plugin, data);
 
 	/*
 	 * Now let the home directory override the environment
@@ -413,7 +413,7 @@ load_plugins(struct tep_handle *pevent, const char *suffix,
 		return;
 	}
 
-	load_plugins_dir(pevent, suffix, path, load_plugin, data);
+	load_plugins_dir(tep, suffix, path, load_plugin, data);
 
 	free(path);
 }
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index 6a4d5d1dd1cd..552592d153fb 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -256,7 +256,7 @@ static int event_match(struct tep_event *event,
 }
 
 static enum tep_errno
-find_event(struct tep_handle *pevent, struct event_list **events,
+find_event(struct tep_handle *tep, struct event_list **events,
 	   char *sys_name, char *event_name)
 {
 	struct tep_event *event;
@@ -299,8 +299,8 @@ find_event(struct tep_handle *pevent, struct event_list **events,
 		}
 	}
 
-	for (i = 0; i < pevent->nr_events; i++) {
-		event = pevent->events[i];
+	for (i = 0; i < tep->nr_events; i++) {
+		event = tep->events[i];
 		if (event_match(event, sys_name ? &sreg : NULL, &ereg)) {
 			match = 1;
 			if (add_event(events, event) < 0) {
@@ -1257,7 +1257,7 @@ static void filter_init_error_buf(struct tep_event_filter *filter)
 enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
 					 const char *filter_str)
 {
-	struct tep_handle *pevent = filter->tep;
+	struct tep_handle *tep = filter->tep;
 	struct event_list *event;
 	struct event_list *events = NULL;
 	const char *filter_start;
@@ -1313,7 +1313,7 @@ enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
 		}
 
 		/* Find this event */
-		ret = find_event(pevent, &events, strim(sys_name), strim(event_name));
+		ret = find_event(tep, &events, strim(sys_name), strim(event_name));
 		if (ret < 0) {
 			free_events(events);
 			free(this_event);
@@ -1334,7 +1334,7 @@ enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
 		if (ret < 0)
 			rtn = ret;
 
-		if (ret >= 0 && pevent->test_filters) {
+		if (ret >= 0 && tep->test_filters) {
 			char *test;
 			test = tep_filter_make_string(filter, event->event->id);
 			if (test) {
@@ -1459,7 +1459,7 @@ static int copy_filter_type(struct tep_event_filter *filter,
 	const char *name;
 	char *str;
 
-	/* Can't assume that the pevent's are the same */
+	/* Can't assume that the tep's are the same */
 	sys = filter_type->event->system;
 	name = filter_type->event->name;
 	event = tep_find_event_by_name(filter->tep, sys, name);
@@ -1697,7 +1697,7 @@ static int test_num(struct tep_event *event, struct tep_filter_arg *arg,
 static const char *get_field_str(struct tep_filter_arg *arg, struct tep_record *record)
 {
 	struct tep_event *event;
-	struct tep_handle *pevent;
+	struct tep_handle *tep;
 	unsigned long long addr;
 	const char *val = NULL;
 	unsigned int size;
@@ -1727,12 +1727,12 @@ static const char *get_field_str(struct tep_filter_arg *arg, struct tep_record *
 
 	} else {
 		event = arg->str.field->event;
-		pevent = event->tep;
+		tep = event->tep;
 		addr = get_value(event, arg->str.field, record);
 
 		if (arg->str.field->flags & (TEP_FIELD_IS_POINTER | TEP_FIELD_IS_LONG))
 			/* convert to a kernel symbol */
-			val = tep_find_function(pevent, addr);
+			val = tep_find_function(tep, addr);
 
 		if (val == NULL) {
 			/* just use the hex of the string name */
@@ -1872,7 +1872,7 @@ int tep_event_filtered(struct tep_event_filter *filter, int event_id)
 enum tep_errno tep_filter_match(struct tep_event_filter *filter,
 				struct tep_record *record)
 {
-	struct tep_handle *pevent = filter->tep;
+	struct tep_handle *tep = filter->tep;
 	struct tep_filter_type *filter_type;
 	int event_id;
 	int ret;
@@ -1883,7 +1883,7 @@ enum tep_errno tep_filter_match(struct tep_event_filter *filter,
 	if (!filter->filters)
 		return TEP_ERRNO__NO_FILTER;
 
-	event_id = tep_data_type(pevent, record);
+	event_id = tep_data_type(tep, record);
 
 	filter_type = find_filter_type(filter, event_id);
 	if (!filter_type)
diff --git a/tools/lib/traceevent/plugin_function.c b/tools/lib/traceevent/plugin_function.c
index d6a8df060614..7770fcb78e0f 100644
--- a/tools/lib/traceevent/plugin_function.c
+++ b/tools/lib/traceevent/plugin_function.c
@@ -126,7 +126,7 @@ static int add_and_get_index(const char *parent, const char *child, int cpu)
 static int function_handler(struct trace_seq *s, struct tep_record *record,
 			    struct tep_event *event, void *context)
 {
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	unsigned long long function;
 	unsigned long long pfunction;
 	const char *func;
@@ -136,12 +136,12 @@ static int function_handler(struct trace_seq *s, struct tep_record *record,
 	if (tep_get_field_val(s, event, "ip", record, &function, 1))
 		return trace_seq_putc(s, '!');
 
-	func = tep_find_function(pevent, function);
+	func = tep_find_function(tep, function);
 
 	if (tep_get_field_val(s, event, "parent_ip", record, &pfunction, 1))
 		return trace_seq_putc(s, '!');
 
-	parent = tep_find_function(pevent, pfunction);
+	parent = tep_find_function(tep, pfunction);
 
 	if (parent && ftrace_indent->set)
 		index = add_and_get_index(parent, func, record->cpu);
-- 
2.20.1



^ permalink raw reply	[flat|nested] 55+ messages in thread

* Re: [PATCH 00/15] tools/lib/traceevent: Continuing on the path to a stand alone library
  2019-04-01 16:43 [PATCH 00/15] tools/lib/traceevent: Continuing on the path to a stand alone library Steven Rostedt
                   ` (14 preceding siblings ...)
  2019-04-01 16:43 ` [PATCH 15/15] tools/lib/traceevent: Rename input arguments and local variables of libtraceevent from pevent to tep Steven Rostedt
@ 2019-04-01 18:17 ` Arnaldo Carvalho de Melo
  15 siblings, 0 replies; 55+ messages in thread
From: Arnaldo Carvalho de Melo @ 2019-04-01 18:17 UTC (permalink / raw)
  To: Steven Rostedt
  Cc: linux-kernel, Ingo Molnar, Jiri Olsa, Namhyung Kim,
	Andrew Morton, Tzvetomir Stoyanov

Em Mon, Apr 01, 2019 at 12:43:05PM -0400, Steven Rostedt escreveu:
> 
> Arnaldo,
> 
> These contain more patches to make libtraceevent a stand alone library.
> It also brings in some changes that are in the trace-cmd library.
> 
> There's a few name changes to the API function names to be more
> descriptive as well as closer to what they actually do.
> 
> The "pevent" has been renamed to "tep" as we no longer use "pevent"
> to represent the handle to the libtraceevent library descriptor.
> "tep" now stands for "Trace Event Parser".
> 
> The reason for the "(Red Hat)" in one of my patches is that the code
> was written when I was working for Red Hat, but added when working
> for VMware (which is in the Signed-off-by).

Thanks, applied.

  $ git log | grep Author | head -15
  Author: Tzvetomir Stoyanov <tstoyanov@vmware.com>
  Author: Tzvetomir Stoyanov <tstoyanov@vmware.com>
  Author: Tzvetomir Stoyanov <tstoyanov@vmware.com>
  Author: Tzvetomir Stoyanov <tstoyanov@vmware.com>
  Author: Tzvetomir Stoyanov <tstoyanov@vmware.com>
  Author: Tzvetomir Stoyanov <tstoyanov@vmware.com>
  Author: Tzvetomir Stoyanov <tstoyanov@vmware.com>
  Author: Steven Rostedt (VMware) <rostedt@goodmis.org>
  Author: Tzvetomir Stoyanov <tstoyanov@vmware.com>
  Author: Tzvetomir Stoyanov <tstoyanov@vmware.com>
  Author: Tzvetomir Stoyanov <tstoyanov@vmware.com>
  Author: Steven Rostedt (Red Hat) <rostedt@goodmis.org>
  Author: Tzvetomir Stoyanov <tstoyanov@vmware.com>
  Author: Steven Rostedt (VMware) <rostedt@goodmis.org>
  Author: Steven Rostedt (VMware) <rostedt@goodmis.org>
  $

- Arnaldo

^ permalink raw reply	[flat|nested] 55+ messages in thread

* [tip:perf/core] tools lib traceevent: Handle trace_printk() "%px"
  2019-04-01 16:43 ` [PATCH 01/15] tools lib traceevent: Handle trace_printk() "%px" Steven Rostedt
@ 2019-04-05 11:41   ` tip-bot for Steven Rostedt (VMware)
  0 siblings, 0 replies; 55+ messages in thread
From: tip-bot for Steven Rostedt (VMware) @ 2019-04-05 11:41 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: hpa, mingo, jolsa, tglx, rostedt, akpm, tstoyanov, namhyung,
	acme, linux-kernel

Commit-ID:  328b82b7497787cf4e4856a216dbf4e8a54c06a6
Gitweb:     https://git.kernel.org/tip/328b82b7497787cf4e4856a216dbf4e8a54c06a6
Author:     Steven Rostedt (VMware) <rostedt@goodmis.org>
AuthorDate: Mon, 1 Apr 2019 12:43:06 -0400
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 1 Apr 2019 15:18:08 -0300

tools lib traceevent: Handle trace_printk() "%px"

With security updates, %p in the kernel is hashed to protect true kernel
locations. But trace_printk() is not allowed in production systems, and
when a pointer is used, there are many times that the actual address is
needed. "%px" produces the real address. But libtraceevent does not know how
to handle that extension. Add it.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Link: http://lkml.kernel.org/r/20190401164342.837312153@goodmis.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 87494c7c619d..2ebb257ce7ba 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -4338,6 +4338,7 @@ static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, s
 					case 'S':
 					case 'f':
 					case 'F':
+					case 'x':
 						break;
 					default:
 						/*

^ permalink raw reply	[flat|nested] 55+ messages in thread

* [tip:perf/core] tools lib traceevent: Add mono clocks to be parsed in seconds
  2019-04-01 16:43 ` [PATCH 02/15] tools/lib/traceevent: Add mono clocks to be parsed in seconds Steven Rostedt
@ 2019-04-05 11:42   ` tip-bot for Steven Rostedt (VMware)
  0 siblings, 0 replies; 55+ messages in thread
From: tip-bot for Steven Rostedt (VMware) @ 2019-04-05 11:42 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: hpa, jolsa, namhyung, linux-kernel, acme, mingo, akpm, tglx,
	rostedt, tstoyanov

Commit-ID:  fed33e905c4beea96a066686f8be2b489eb5068e
Gitweb:     https://git.kernel.org/tip/fed33e905c4beea96a066686f8be2b489eb5068e
Author:     Steven Rostedt (VMware) <rostedt@goodmis.org>
AuthorDate: Mon, 1 Apr 2019 12:43:07 -0400
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 1 Apr 2019 15:18:08 -0300

tools lib traceevent: Add mono clocks to be parsed in seconds

The mono clocks can display in seconds instead of whole numbers:

       trace-cmd-521   [001] 99176715281005: sched_waking:         comm=kworker/u16:2 pid=32118 prio=120 target_cpu=002
       trace-cmd-521   [001] 99176715286349: sched_wake_idle_without_ipi: cpu=2
       trace-cmd-521   [001] 99176715288047: sched_wakeup:         kworker/u16:2:32118 [120] success=1 CPU:002
       trace-cmd-521   [001] 99176715290022: sched_waking:         comm=trace-cmd pid=523 prio=120 target_cpu=000
       trace-cmd-521   [001] 99176715292332: sched_wake_idle_without_ipi: cpu=0
       trace-cmd-521   [001] 99176715292855: sched_wakeup:         trace-cmd:523 [120] success=1 CPU:000
       trace-cmd-521   [001] 99176715300697: sched_stat_runtime:   comm=trace-cmd pid=521 runtime=80233 [ns] vruntime=66705540554 [ns

Break it up in seconds:

       trace-cmd-521   [001] 99176.715281: sched_waking:         comm=kworker/u16:2 pid=32118 prio=120 target_cpu=002
       trace-cmd-521   [001] 99176.715286: sched_wake_idle_without_ipi: cpu=2
       trace-cmd-521   [001] 99176.715288: sched_wakeup:         kworker/u16:2:32118 [120] success=1 CPU:002
       trace-cmd-521   [001] 99176.715290: sched_waking:         comm=trace-cmd pid=523 prio=120 target_cpu=000
       trace-cmd-521   [001] 99176.715292: sched_wake_idle_without_ipi: cpu=0
       trace-cmd-521   [001] 99176.715293: sched_wakeup:         trace-cmd:523 [120] success=1 CPU:000
       trace-cmd-521   [001] 99176.715301: sched_stat_runtime:   comm=trace-cmd pid=521 runtime=80233 [ns] vruntime=66705540554 [ns]

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Link: http://lkml.kernel.org/r/20190401164342.976554023@goodmis.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 2ebb257ce7ba..666e23ded6ed 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -5445,7 +5445,8 @@ static bool is_timestamp_in_us(char *trace_clock, bool use_trace_clock)
 		return true;
 
 	if (!strcmp(trace_clock, "local") || !strcmp(trace_clock, "global")
-	    || !strcmp(trace_clock, "uptime") || !strcmp(trace_clock, "perf"))
+	    || !strcmp(trace_clock, "uptime") || !strcmp(trace_clock, "perf")
+	    || !strncmp(trace_clock, "mono", 4))
 		return true;
 
 	/* trace_clock is setting in tsc or counter mode */

^ permalink raw reply	[flat|nested] 55+ messages in thread

* [tip:perf/core] tools lib traceevent: Implement a new API, tep_list_events_copy()
  2019-04-01 16:43 ` [PATCH 03/15] tools lib traceevent: Implement a new API, tep_list_events_copy() Steven Rostedt
@ 2019-04-05 11:42   ` tip-bot for Tzvetomir Stoyanov
  0 siblings, 0 replies; 55+ messages in thread
From: tip-bot for Tzvetomir Stoyanov @ 2019-04-05 11:42 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: mingo, rostedt, namhyung, tglx, jolsa, linux-kernel, akpm, acme,
	tstoyanov, hpa

Commit-ID:  6699ed712a97f70267e017f509126b890f6f6b28
Gitweb:     https://git.kernel.org/tip/6699ed712a97f70267e017f509126b890f6f6b28
Author:     Tzvetomir Stoyanov <tstoyanov@vmware.com>
AuthorDate: Mon, 1 Apr 2019 12:43:08 -0400
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 1 Apr 2019 15:18:09 -0300

tools lib traceevent: Implement a new API, tep_list_events_copy()

Existing API tep_list_events() is not thread safe, it uses the internal
array sort_events to keep cache of the sorted events and reuses it. This
patch implements a new API, tep_list_events_copy(), which allocates new
sorted array each time it is called. It could be used when a sorted
events functionality is needed in thread safe use cases. It is up to the
caller to free the array.

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/linux-trace-devel/20181218133013.31094-1-tstoyanov@vmware.com
Link: http://lkml.kernel.org/r/20190401164343.117437443@goodmis.org
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse.c | 109 +++++++++++++++++++++++++++++--------
 tools/lib/traceevent/event-parse.h |   5 +-
 2 files changed, 91 insertions(+), 23 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 666e23ded6ed..c00aebab3c33 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -5651,32 +5651,26 @@ static int events_system_cmp(const void *a, const void *b)
 	return events_id_cmp(a, b);
 }
 
-struct tep_event **tep_list_events(struct tep_handle *pevent, enum tep_event_sort_type sort_type)
+static struct tep_event **list_events_copy(struct tep_handle *tep)
 {
 	struct tep_event **events;
-	int (*sort)(const void *a, const void *b);
-
-	events = pevent->sort_events;
-
-	if (events && pevent->last_type == sort_type)
-		return events;
 
-	if (!events) {
-		events = malloc(sizeof(*events) * (pevent->nr_events + 1));
-		if (!events)
-			return NULL;
+	if (!tep)
+		return NULL;
 
-		memcpy(events, pevent->events, sizeof(*events) * pevent->nr_events);
-		events[pevent->nr_events] = NULL;
+	events = malloc(sizeof(*events) * (tep->nr_events + 1));
+	if (!events)
+		return NULL;
 
-		pevent->sort_events = events;
+	memcpy(events, tep->events, sizeof(*events) * tep->nr_events);
+	events[tep->nr_events] = NULL;
+	return events;
+}
 
-		/* the internal events are sorted by id */
-		if (sort_type == TEP_EVENT_SORT_ID) {
-			pevent->last_type = sort_type;
-			return events;
-		}
-	}
+static void list_events_sort(struct tep_event **events, int nr_events,
+			     enum tep_event_sort_type sort_type)
+{
+	int (*sort)(const void *a, const void *b);
 
 	switch (sort_type) {
 	case TEP_EVENT_SORT_ID:
@@ -5689,11 +5683,82 @@ struct tep_event **tep_list_events(struct tep_handle *pevent, enum tep_event_sor
 		sort = events_system_cmp;
 		break;
 	default:
+		sort = NULL;
+	}
+
+	if (sort)
+		qsort(events, nr_events, sizeof(*events), sort);
+}
+
+/**
+ * tep_list_events - Get events, sorted by given criteria.
+ * @tep: a handle to the tep context
+ * @sort_type: desired sort order of the events in the array
+ *
+ * Returns an array of pointers to all events, sorted by the given
+ * @sort_type criteria. The last element of the array is NULL. The returned
+ * memory must not be freed, it is managed by the library.
+ * The function is not thread safe.
+ */
+struct tep_event **tep_list_events(struct tep_handle *tep,
+				   enum tep_event_sort_type sort_type)
+{
+	struct tep_event **events;
+
+	if (!tep)
+		return NULL;
+
+	events = tep->sort_events;
+	if (events && tep->last_type == sort_type)
 		return events;
+
+	if (!events) {
+		events = list_events_copy(tep);
+		if (!events)
+			return NULL;
+
+		tep->sort_events = events;
+
+		/* the internal events are sorted by id */
+		if (sort_type == TEP_EVENT_SORT_ID) {
+			tep->last_type = sort_type;
+			return events;
+		}
 	}
 
-	qsort(events, pevent->nr_events, sizeof(*events), sort);
-	pevent->last_type = sort_type;
+	list_events_sort(events, tep->nr_events, sort_type);
+	tep->last_type = sort_type;
+
+	return events;
+}
+
+
+/**
+ * tep_list_events_copy - Thread safe version of tep_list_events()
+ * @tep: a handle to the tep context
+ * @sort_type: desired sort order of the events in the array
+ *
+ * Returns an array of pointers to all events, sorted by the given
+ * @sort_type criteria. The last element of the array is NULL. The returned
+ * array is newly allocated inside the function and must be freed by the caller
+ */
+struct tep_event **tep_list_events_copy(struct tep_handle *tep,
+					enum tep_event_sort_type sort_type)
+{
+	struct tep_event **events;
+
+	if (!tep)
+		return NULL;
+
+	events = list_events_copy(tep);
+	if (!events)
+		return NULL;
+
+	/* the internal events are sorted by id */
+	if (sort_type == TEP_EVENT_SORT_ID)
+		return events;
+
+	list_events_sort(events, tep->nr_events, sort_type);
 
 	return events;
 }
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index aec48f2aea8a..41159358abc2 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -544,7 +544,10 @@ void tep_event_info(struct trace_seq *s, struct tep_event *event,
 int tep_strerror(struct tep_handle *pevent, enum tep_errno errnum,
 		 char *buf, size_t buflen);
 
-struct tep_event **tep_list_events(struct tep_handle *pevent, enum tep_event_sort_type);
+struct tep_event **tep_list_events(struct tep_handle *tep,
+				   enum tep_event_sort_type);
+struct tep_event **tep_list_events_copy(struct tep_handle *tep,
+					enum tep_event_sort_type);
 struct tep_format_field **tep_event_common_fields(struct tep_event *event);
 struct tep_format_field **tep_event_fields(struct tep_event *event);
 

^ permalink raw reply	[flat|nested] 55+ messages in thread

* [tip:perf/core] tools lib traceevent: Add more debugging to see various internal ring buffer entries
  2019-04-01 16:43 ` [PATCH 04/15] tools/lib/traceevent: Add more debugging to see various internal ring buffer entries Steven Rostedt
@ 2019-04-05 11:43   ` tip-bot for Steven Rostedt (Red Hat)
  0 siblings, 0 replies; 55+ messages in thread
From: tip-bot for Steven Rostedt (Red Hat) @ 2019-04-05 11:43 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: namhyung, hpa, mingo, tstoyanov, akpm, tglx, acme, rostedt,
	jolsa, linux-kernel

Commit-ID:  70df6a7311186a7ab0b19f481dee4ca540a73837
Gitweb:     https://git.kernel.org/tip/70df6a7311186a7ab0b19f481dee4ca540a73837
Author:     Steven Rostedt (Red Hat) <rostedt@goodmis.org>
AuthorDate: Mon, 1 Apr 2019 12:43:09 -0400
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 1 Apr 2019 15:18:09 -0300

tools lib traceevent: Add more debugging to see various internal ring buffer entries

When trace-cmd report --debug is set, show the internal ring buffer
entries like time-extends and padding. This requires adding new kbuffer
API to retrieve these items.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Link: http://lkml.kernel.org/r/20190401164343.257591565@goodmis.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/kbuffer-parse.c | 49 ++++++++++++++++++++++++++++++++++++
 tools/lib/traceevent/kbuffer.h       | 13 ++++++++++
 2 files changed, 62 insertions(+)

diff --git a/tools/lib/traceevent/kbuffer-parse.c b/tools/lib/traceevent/kbuffer-parse.c
index af2a1f3b7424..b887e7437d67 100644
--- a/tools/lib/traceevent/kbuffer-parse.c
+++ b/tools/lib/traceevent/kbuffer-parse.c
@@ -727,3 +727,52 @@ int kbuffer_start_of_data(struct kbuffer *kbuf)
 {
 	return kbuf->start;
 }
+
+/**
+ * kbuffer_raw_get - get raw buffer info
+ * @kbuf:	The kbuffer
+ * @subbuf:	Start of mapped subbuffer
+ * @info:	Info descriptor to fill in
+ *
+ * For debugging. This can return internals of the ring buffer.
+ * Expects to have info->next set to what it will read.
+ * The type, length and timestamp delta will be filled in, and
+ * @info->next will be updated to the next element.
+ * The @subbuf is used to know if the info is passed the end of
+ * data and NULL will be returned if it is.
+ */
+struct kbuffer_raw_info *
+kbuffer_raw_get(struct kbuffer *kbuf, void *subbuf, struct kbuffer_raw_info *info)
+{
+	unsigned long long flags;
+	unsigned long long delta;
+	unsigned int type_len;
+	unsigned int size;
+	int start;
+	int length;
+	void *ptr = info->next;
+
+	if (!kbuf || !subbuf)
+		return NULL;
+
+	if (kbuf->flags & KBUFFER_FL_LONG_8)
+		start = 16;
+	else
+		start = 12;
+
+	flags = read_long(kbuf, subbuf + 8);
+	size = (unsigned int)flags & COMMIT_MASK;
+
+	if (ptr < subbuf || ptr >= subbuf + start + size)
+		return NULL;
+
+	type_len = translate_data(kbuf, ptr, &ptr, &delta, &length);
+
+	info->next = ptr + length;
+
+	info->type = type_len;
+	info->delta = delta;
+	info->length = length;
+
+	return info;
+}
diff --git a/tools/lib/traceevent/kbuffer.h b/tools/lib/traceevent/kbuffer.h
index 03dce757553f..ed4d697fc137 100644
--- a/tools/lib/traceevent/kbuffer.h
+++ b/tools/lib/traceevent/kbuffer.h
@@ -65,4 +65,17 @@ int kbuffer_subbuffer_size(struct kbuffer *kbuf);
 void kbuffer_set_old_format(struct kbuffer *kbuf);
 int kbuffer_start_of_data(struct kbuffer *kbuf);
 
+/* Debugging */
+
+struct kbuffer_raw_info {
+	int			type;
+	int			length;
+	unsigned long long	delta;
+	void			*next;
+};
+
+/* Read raw data */
+struct kbuffer_raw_info *kbuffer_raw_get(struct kbuffer *kbuf, void *subbuf,
+					 struct kbuffer_raw_info *info);
+
 #endif /* _K_BUFFER_H */

^ permalink raw reply	[flat|nested] 55+ messages in thread

* [tip:perf/core] tools lib traceevent: Change description of few APIs
  2019-04-01 16:43 ` [PATCH 05/15] tools/lib/traceevent: Change description of few APIs Steven Rostedt
@ 2019-04-05 11:44   ` tip-bot for Tzvetomir Stoyanov
  0 siblings, 0 replies; 55+ messages in thread
From: tip-bot for Tzvetomir Stoyanov @ 2019-04-05 11:44 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: rostedt, linux-kernel, namhyung, tglx, acme, akpm, tstoyanov,
	jolsa, mingo, hpa

Commit-ID:  489b34948cbbc725755e1b1125dbdb16401eea07
Gitweb:     https://git.kernel.org/tip/489b34948cbbc725755e1b1125dbdb16401eea07
Author:     Tzvetomir Stoyanov <tstoyanov@vmware.com>
AuthorDate: Mon, 1 Apr 2019 12:43:10 -0400
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 1 Apr 2019 15:18:09 -0300

tools lib traceevent: Change description of few APIs

APIs descriptions should describe the purpose of the function, its
parameters and return value. While working  on man pages implementation,
I noticed mismatches in the  descriptions of few APIs.  This patch
changes the description of these APIs, making them consistent with the
man pages:

 - tep_print_num_field()
 - tep_print_func_field()
 - tep_get_header_page_size()
 - tep_get_long_size()
 - tep_set_long_size()
 - tep_get_page_size()
 - tep_set_page_size()

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/linux-trace-devel/20190325145017.30246-2-tstoyanov@vmware.com
Link: http://lkml.kernel.org/r/20190401164343.396759247@goodmis.org
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse-api.c | 20 ++++++++++----------
 tools/lib/traceevent/event-parse.c     |  6 ++++--
 2 files changed, 14 insertions(+), 12 deletions(-)

diff --git a/tools/lib/traceevent/event-parse-api.c b/tools/lib/traceevent/event-parse-api.c
index d463761a58f4..3686a221e981 100644
--- a/tools/lib/traceevent/event-parse-api.c
+++ b/tools/lib/traceevent/event-parse-api.c
@@ -43,8 +43,8 @@ int tep_get_events_count(struct tep_handle *tep)
  * @flag: flag, or combination of flags to be set
  * can be any combination from enum tep_flag
  *
- * This sets a flag or mbination of flags  from enum tep_flag
-  */
+ * This sets a flag or combination of flags from enum tep_flag
+ */
 void tep_set_flag(struct tep_handle *tep, int flag)
 {
 	if(tep)
@@ -140,10 +140,10 @@ void tep_set_cpus(struct tep_handle *pevent, int cpus)
 }
 
 /**
- * tep_get_long_size - get the size of a long integer on the current machine
+ * tep_get_long_size - get the size of a long integer on the traced machine
  * @pevent: a handle to the tep_handle
  *
- * This returns the size of a long integer on the current machine
+ * This returns the size of a long integer on the traced machine
  * If @pevent is NULL, 0 is returned.
  */
 int tep_get_long_size(struct tep_handle *pevent)
@@ -154,11 +154,11 @@ int tep_get_long_size(struct tep_handle *pevent)
 }
 
 /**
- * tep_set_long_size - set the size of a long integer on the current machine
+ * tep_set_long_size - set the size of a long integer on the traced machine
  * @pevent: a handle to the tep_handle
  * @size: size, in bytes, of a long integer
  *
- * This sets the size of a long integer on the current machine
+ * This sets the size of a long integer on the traced machine
  */
 void tep_set_long_size(struct tep_handle *pevent, int long_size)
 {
@@ -167,10 +167,10 @@ void tep_set_long_size(struct tep_handle *pevent, int long_size)
 }
 
 /**
- * tep_get_page_size - get the size of a memory page on the current machine
+ * tep_get_page_size - get the size of a memory page on the traced machine
  * @pevent: a handle to the tep_handle
  *
- * This returns the size of a memory page on the current machine
+ * This returns the size of a memory page on the traced machine
  * If @pevent is NULL, 0 is returned.
  */
 int tep_get_page_size(struct tep_handle *pevent)
@@ -181,11 +181,11 @@ int tep_get_page_size(struct tep_handle *pevent)
 }
 
 /**
- * tep_set_page_size - set the size of a memory page on the current machine
+ * tep_set_page_size - set the size of a memory page on the traced machine
  * @pevent: a handle to the tep_handle
  * @_page_size: size of a memory page, in bytes
  *
- * This sets the size of a memory page on the current machine
+ * This sets the size of a memory page on the traced machine
  */
 void tep_set_page_size(struct tep_handle *pevent, int _page_size)
 {
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index c00aebab3c33..000ab7514be7 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -6453,7 +6453,8 @@ int tep_get_any_field_val(struct trace_seq *s, struct tep_event *event,
  * @record: The record with the field name.
  * @err: print default error if failed.
  *
- * Returns: 0 on success, -1 field not found, or 1 if buffer is full.
+ * Returns positive value on success, negative in case of an error,
+ * or 0 if buffer is full.
  */
 int tep_print_num_field(struct trace_seq *s, const char *fmt,
 			struct tep_event *event, const char *name,
@@ -6485,7 +6486,8 @@ int tep_print_num_field(struct trace_seq *s, const char *fmt,
  * @record: The record with the field name.
  * @err: print default error if failed.
  *
- * Returns: 0 on success, -1 field not found, or 1 if buffer is full.
+ * Returns positive value on success, negative in case of an error,
+ * or 0 if buffer is full.
  */
 int tep_print_func_field(struct trace_seq *s, const char *fmt,
 			 struct tep_event *event, const char *name,

^ permalink raw reply	[flat|nested] 55+ messages in thread

* [tip:perf/core] tools lib traceevent: Coding style fixes
  2019-04-01 16:43 ` [PATCH 06/15] tools/lib/traceevent: Coding style fixes Steven Rostedt
@ 2019-04-05 11:44   ` tip-bot for Tzvetomir Stoyanov
  0 siblings, 0 replies; 55+ messages in thread
From: tip-bot for Tzvetomir Stoyanov @ 2019-04-05 11:44 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: namhyung, tstoyanov, mingo, hpa, acme, jolsa, linux-kernel, tglx,
	akpm, rostedt

Commit-ID:  d5d2d05bd5b02efa8545a3323a60465de9efb21e
Gitweb:     https://git.kernel.org/tip/d5d2d05bd5b02efa8545a3323a60465de9efb21e
Author:     Tzvetomir Stoyanov <tstoyanov@vmware.com>
AuthorDate: Mon, 1 Apr 2019 12:43:11 -0400
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 1 Apr 2019 15:18:09 -0300

tools lib traceevent: Coding style fixes

Fixed few coding style problems in event-parse-api.c

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/linux-trace-devel/20190325145017.30246-3-tstoyanov@vmware.com
Link: http://lkml.kernel.org/r/20190401164343.537086316@goodmis.org
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse-api.c | 30 +++++++++++++++---------------
 1 file changed, 15 insertions(+), 15 deletions(-)

diff --git a/tools/lib/traceevent/event-parse-api.c b/tools/lib/traceevent/event-parse-api.c
index 3686a221e981..3716a9142aef 100644
--- a/tools/lib/traceevent/event-parse-api.c
+++ b/tools/lib/traceevent/event-parse-api.c
@@ -32,7 +32,7 @@ struct tep_event *tep_get_first_event(struct tep_handle *tep)
  */
 int tep_get_events_count(struct tep_handle *tep)
 {
-	if(tep)
+	if (tep)
 		return tep->nr_events;
 	return 0;
 }
@@ -47,7 +47,7 @@ int tep_get_events_count(struct tep_handle *tep)
  */
 void tep_set_flag(struct tep_handle *tep, int flag)
 {
-	if(tep)
+	if (tep)
 		tep->flags |= flag;
 }
 
@@ -108,7 +108,7 @@ tep_data2host8(struct tep_handle *pevent, unsigned long long data)
  */
 int tep_get_header_page_size(struct tep_handle *pevent)
 {
-	if(pevent)
+	if (pevent)
 		return pevent->header_page_size_size;
 	return 0;
 }
@@ -122,7 +122,7 @@ int tep_get_header_page_size(struct tep_handle *pevent)
  */
 int tep_get_cpus(struct tep_handle *pevent)
 {
-	if(pevent)
+	if (pevent)
 		return pevent->cpus;
 	return 0;
 }
@@ -135,7 +135,7 @@ int tep_get_cpus(struct tep_handle *pevent)
  */
 void tep_set_cpus(struct tep_handle *pevent, int cpus)
 {
-	if(pevent)
+	if (pevent)
 		pevent->cpus = cpus;
 }
 
@@ -148,7 +148,7 @@ void tep_set_cpus(struct tep_handle *pevent, int cpus)
  */
 int tep_get_long_size(struct tep_handle *pevent)
 {
-	if(pevent)
+	if (pevent)
 		return pevent->long_size;
 	return 0;
 }
@@ -162,7 +162,7 @@ int tep_get_long_size(struct tep_handle *pevent)
  */
 void tep_set_long_size(struct tep_handle *pevent, int long_size)
 {
-	if(pevent)
+	if (pevent)
 		pevent->long_size = long_size;
 }
 
@@ -175,7 +175,7 @@ void tep_set_long_size(struct tep_handle *pevent, int long_size)
  */
 int tep_get_page_size(struct tep_handle *pevent)
 {
-	if(pevent)
+	if (pevent)
 		return pevent->page_size;
 	return 0;
 }
@@ -189,7 +189,7 @@ int tep_get_page_size(struct tep_handle *pevent)
  */
 void tep_set_page_size(struct tep_handle *pevent, int _page_size)
 {
-	if(pevent)
+	if (pevent)
 		pevent->page_size = _page_size;
 }
 
@@ -202,7 +202,7 @@ void tep_set_page_size(struct tep_handle *pevent, int _page_size)
  */
 int tep_file_bigendian(struct tep_handle *pevent)
 {
-	if(pevent)
+	if (pevent)
 		return pevent->file_bigendian;
 	return 0;
 }
@@ -216,7 +216,7 @@ int tep_file_bigendian(struct tep_handle *pevent)
  */
 void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian)
 {
-	if(pevent)
+	if (pevent)
 		pevent->file_bigendian = endian;
 }
 
@@ -229,7 +229,7 @@ void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian)
  */
 int tep_is_host_bigendian(struct tep_handle *pevent)
 {
-	if(pevent)
+	if (pevent)
 		return pevent->host_bigendian;
 	return 0;
 }
@@ -243,7 +243,7 @@ int tep_is_host_bigendian(struct tep_handle *pevent)
  */
 void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian)
 {
-	if(pevent)
+	if (pevent)
 		pevent->host_bigendian = endian;
 }
 
@@ -256,7 +256,7 @@ void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian)
  */
 int tep_is_latency_format(struct tep_handle *pevent)
 {
-	if(pevent)
+	if (pevent)
 		return pevent->latency_format;
 	return 0;
 }
@@ -270,6 +270,6 @@ int tep_is_latency_format(struct tep_handle *pevent)
   */
 void tep_set_latency_format(struct tep_handle *pevent, int lat)
 {
-	if(pevent)
+	if (pevent)
 		pevent->latency_format = lat;
 }

^ permalink raw reply	[flat|nested] 55+ messages in thread

* [tip:perf/core] tools lib traceevent: Implement new traceevent APIs for accessing struct tep_handler fields
  2019-04-01 16:43 ` [PATCH 07/15] tools/lib/traceevent: Implement new traceevent APIs for accessing struct tep_handler fields Steven Rostedt
@ 2019-04-05 11:45   ` tip-bot for Tzvetomir Stoyanov
  0 siblings, 0 replies; 55+ messages in thread
From: tip-bot for Tzvetomir Stoyanov @ 2019-04-05 11:45 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: linux-kernel, rostedt, hpa, namhyung, acme, jolsa, tstoyanov,
	tglx, akpm, mingo

Commit-ID:  80c5526c8544ae76cba31fb9702ab8accac1f0f3
Gitweb:     https://git.kernel.org/tip/80c5526c8544ae76cba31fb9702ab8accac1f0f3
Author:     Tzvetomir Stoyanov <tstoyanov@vmware.com>
AuthorDate: Mon, 1 Apr 2019 12:43:12 -0400
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 1 Apr 2019 15:18:09 -0300

tools lib traceevent: Implement new traceevent APIs for accessing struct tep_handler fields

As struct tep_handler definition is not exposed as part of libtraceevent
API, its fields cannot be accessed directly by the library users. This
patch implements new APIs, which can be used to access the struct
tep_handler fields:

  tep_get_event()        - retrieves an event pointer at a specific index
  tep_get_first_event()  - is modified to use tep_get_event()
  tep_clear_flag()       - clears a tep handle flag
  tep_test_flag()        - test if a given flag is set
  tep_get_header_timestamp_size() - returns the size of the timestamp stored
                           in the header.
  tep_get_cpus()         - returns the number of CPUs
  tep_is_old_format()    - returns true if data was created by an
                           older kernel with the old data format
  tep_set_print_raw()    - have the output print in the raw format
  tep_set_test_filters() - debugging utility for testing tep filters

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/linux-trace-devel/20190325145017.30246-4-tstoyanov@vmware.com
Link: http://lkml.kernel.org/r/20190401164343.679629539@goodmis.org
[ Renamed some newly added "pevent" to "tep" ]
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse-api.c | 106 +++++++++++++++++++++++++++++++--
 tools/lib/traceevent/event-parse.h     |   6 ++
 2 files changed, 108 insertions(+), 4 deletions(-)

diff --git a/tools/lib/traceevent/event-parse-api.c b/tools/lib/traceevent/event-parse-api.c
index 3716a9142aef..2ac8b44854ce 100644
--- a/tools/lib/traceevent/event-parse-api.c
+++ b/tools/lib/traceevent/event-parse-api.c
@@ -8,6 +8,22 @@
 #include "event-parse-local.h"
 #include "event-utils.h"
 
+/**
+ * tep_get_event - returns the event with the given index
+ * @tep: a handle to the tep_handle
+ * @index: index of the requested event, in the range 0 .. nr_events
+ *
+ * This returns pointer to the element of the events array with the given index
+ * If @tep is NULL, or @index is not in the range 0 .. nr_events, NULL is returned.
+ */
+struct tep_event *tep_get_event(struct tep_handle *tep, int index)
+{
+	if (tep && tep->events && index < tep->nr_events)
+		return tep->events[index];
+
+	return NULL;
+}
+
 /**
  * tep_get_first_event - returns the first event in the events array
  * @tep: a handle to the tep_handle
@@ -17,10 +33,7 @@
  */
 struct tep_event *tep_get_first_event(struct tep_handle *tep)
 {
-	if (tep && tep->events)
-		return tep->events[0];
-
-	return NULL;
+	return tep_get_event(tep, 0);
 }
 
 /**
@@ -51,6 +64,34 @@ void tep_set_flag(struct tep_handle *tep, int flag)
 		tep->flags |= flag;
 }
 
+/**
+ * tep_clear_flag - clear event parser flag
+ * @tep: a handle to the tep_handle
+ * @flag: flag to be cleared
+ *
+ * This clears a tep flag
+ */
+void tep_clear_flag(struct tep_handle *tep, enum tep_flag flag)
+{
+	if (tep)
+		tep->flags &= ~flag;
+}
+
+/**
+ * tep_test_flag - check the state of event parser flag
+ * @tep: a handle to the tep_handle
+ * @flag: flag to be checked
+ *
+ * This returns the state of the requested tep flag.
+ * Returns: true if the flag is set, false otherwise.
+ */
+bool tep_test_flag(struct tep_handle *tep, enum tep_flag flag)
+{
+	if (tep)
+		return (tep->flags & flag);
+	return false;
+}
+
 unsigned short tep_data2host2(struct tep_handle *pevent, unsigned short data)
 {
 	unsigned short swap;
@@ -113,6 +154,20 @@ int tep_get_header_page_size(struct tep_handle *pevent)
 	return 0;
 }
 
+/**
+ * tep_get_header_timestamp_size - get size of the time stamp in the header page
+ * @tep: a handle to the tep_handle
+ *
+ * This returns size of the time stamp in the header page
+ * If @tep is NULL, 0 is returned.
+ */
+int tep_get_header_timestamp_size(struct tep_handle *tep)
+{
+	if (tep)
+		return tep->header_page_ts_size;
+	return 0;
+}
+
 /**
  * tep_get_cpus - get the number of CPUs
  * @pevent: a handle to the tep_handle
@@ -273,3 +328,46 @@ void tep_set_latency_format(struct tep_handle *pevent, int lat)
 	if (pevent)
 		pevent->latency_format = lat;
 }
+
+/**
+ * tep_is_old_format - get if an old kernel is used
+ * @tep: a handle to the tep_handle
+ *
+ * This returns true, if an old kernel is used to generate the tracing events or
+ * false if a new kernel is used. Old kernels did not have header page info.
+ * If @tep is NULL, false is returned.
+ */
+bool tep_is_old_format(struct tep_handle *tep)
+{
+	if (tep)
+		return !!(tep->old_format);
+	return false;
+}
+
+/**
+ * tep_set_print_raw - set a flag to force print in raw format
+ * @tep: a handle to the tep_handle
+ * @print_raw: the new value of the print_raw flag
+ *
+ * This sets a flag to force print in raw format
+ */
+void tep_set_print_raw(struct tep_handle *tep, int print_raw)
+{
+	if (tep)
+		tep->print_raw = print_raw;
+}
+
+/**
+ * tep_set_test_filters - set a flag to test a filter string
+ * @tep: a handle to the tep_handle
+ * @test_filters: the new value of the test_filters flag
+ *
+ * This sets a flag to test a filter string. If this flag is set, when
+ * tep_filter_add_filter_str() API as called,it will print the filter string
+ * instead of adding it.
+ */
+void tep_set_test_filters(struct tep_handle *tep, int test_filters)
+{
+	if (tep)
+		tep->test_filters = test_filters;
+}
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 41159358abc2..be082f9692f1 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -409,6 +409,8 @@ void tep_print_plugins(struct trace_seq *s,
 typedef char *(tep_func_resolver_t)(void *priv,
 				    unsigned long long *addrp, char **modp);
 void tep_set_flag(struct tep_handle *tep, int flag);
+void tep_clear_flag(struct tep_handle *tep, enum tep_flag flag);
+bool tep_check_flags(struct tep_handle *tep, enum tep_flag flags);
 
 static inline int tep_host_bigendian(void)
 {
@@ -568,6 +570,10 @@ void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian);
 int tep_is_latency_format(struct tep_handle *pevent);
 void tep_set_latency_format(struct tep_handle *pevent, int lat);
 int tep_get_header_page_size(struct tep_handle *pevent);
+int tep_get_header_timestamp_size(struct tep_handle *tep);
+bool tep_is_old_format(struct tep_handle *tep);
+void tep_set_print_raw(struct tep_handle *tep, int print_raw);
+void tep_set_test_filters(struct tep_handle *tep, int test_filters);
 
 struct tep_handle *tep_alloc(void);
 void tep_free(struct tep_handle *pevent);

^ permalink raw reply	[flat|nested] 55+ messages in thread

* [tip:perf/core] tools lib traceevent: Removed unneeded !! and return parenthesis
  2019-04-01 16:43 ` [PATCH 08/15] tools/lib/traceevent: Removed unneeded !! and return parenthesis Steven Rostedt
@ 2019-04-05 11:46   ` tip-bot for Steven Rostedt (VMware)
  0 siblings, 0 replies; 55+ messages in thread
From: tip-bot for Steven Rostedt (VMware) @ 2019-04-05 11:46 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: tstoyanov, hpa, tglx, acme, linux-kernel, jolsa, rostedt, mingo,
	akpm, namhyung

Commit-ID:  2ce4639f6936261bf6e0bae5c21a0c09a8daeacc
Gitweb:     https://git.kernel.org/tip/2ce4639f6936261bf6e0bae5c21a0c09a8daeacc
Author:     Steven Rostedt (VMware) <rostedt@goodmis.org>
AuthorDate: Mon, 1 Apr 2019 12:43:13 -0400
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 1 Apr 2019 15:18:09 -0300

tools lib traceevent: Removed unneeded !! and return parenthesis

As return is not a function we do not need parenthesis around the return
value. Also, a function returning bool does not need to add !!.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Link: http://lkml.kernel.org/r/20190401164343.817886725@goodmis.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse-api.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/lib/traceevent/event-parse-api.c b/tools/lib/traceevent/event-parse-api.c
index 2ac8b44854ce..002b3f73862b 100644
--- a/tools/lib/traceevent/event-parse-api.c
+++ b/tools/lib/traceevent/event-parse-api.c
@@ -88,7 +88,7 @@ void tep_clear_flag(struct tep_handle *tep, enum tep_flag flag)
 bool tep_test_flag(struct tep_handle *tep, enum tep_flag flag)
 {
 	if (tep)
-		return (tep->flags & flag);
+		return tep->flags & flag;
 	return false;
 }
 
@@ -340,7 +340,7 @@ void tep_set_latency_format(struct tep_handle *pevent, int lat)
 bool tep_is_old_format(struct tep_handle *tep)
 {
 	if (tep)
-		return !!(tep->old_format);
+		return tep->old_format;
 	return false;
 }
 

^ permalink raw reply	[flat|nested] 55+ messages in thread

* [tip:perf/core] tools lib traceevent: Remove tep filter trivial APIs
  2019-04-01 16:43 ` [PATCH 09/15] tools/lib/traceevent: Remove tep filter trivial APIs Steven Rostedt
@ 2019-04-05 11:47   ` tip-bot for Tzvetomir Stoyanov
  0 siblings, 0 replies; 55+ messages in thread
From: tip-bot for Tzvetomir Stoyanov @ 2019-04-05 11:47 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: tglx, akpm, namhyung, hpa, rostedt, tstoyanov, acme, mingo,
	linux-kernel, jolsa

Commit-ID:  a634b278ec2504fdd2acd694f5158ae79016fb70
Gitweb:     https://git.kernel.org/tip/a634b278ec2504fdd2acd694f5158ae79016fb70
Author:     Tzvetomir Stoyanov <tstoyanov@vmware.com>
AuthorDate: Mon, 1 Apr 2019 12:43:14 -0400
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 1 Apr 2019 15:18:09 -0300

tools lib traceevent: Remove tep filter trivial APIs

This patch removes trivial filter tep APIs:

  enum tep_filter_trivial_type
  tep_filter_event_has_trivial()
  tep_update_trivial()
  tep_filter_clear_trivial()

Trivial filters is an optimization, used only in the first version of
KernelShark. The API is deprecated, the next KernelShark release does
not use it.

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20190326154328.28718-4-tstoyanov@vmware.com
Link: http://lkml.kernel.org/r/20190401164343.968458918@goodmis.org
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse.h  |  16 ----
 tools/lib/traceevent/parse-filter.c | 169 ------------------------------------
 2 files changed, 185 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index be082f9692f1..3833d1384599 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -732,12 +732,6 @@ struct tep_event_filter *tep_filter_alloc(struct tep_handle *pevent);
 #define FILTER_MISS		TEP_ERRNO__FILTER_MISS
 #define FILTER_MATCH		TEP_ERRNO__FILTER_MATCH
 
-enum tep_filter_trivial_type {
-	TEP_FILTER_TRIVIAL_FALSE,
-	TEP_FILTER_TRIVIAL_TRUE,
-	TEP_FILTER_TRIVIAL_BOTH,
-};
-
 enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
 					 const char *filter_str);
 
@@ -752,9 +746,6 @@ int tep_event_filtered(struct tep_event_filter *filter,
 
 void tep_filter_reset(struct tep_event_filter *filter);
 
-int tep_filter_clear_trivial(struct tep_event_filter *filter,
-			     enum tep_filter_trivial_type type);
-
 void tep_filter_free(struct tep_event_filter *filter);
 
 char *tep_filter_make_string(struct tep_event_filter *filter, int event_id);
@@ -762,15 +753,8 @@ char *tep_filter_make_string(struct tep_event_filter *filter, int event_id);
 int tep_filter_remove_event(struct tep_event_filter *filter,
 			    int event_id);
 
-int tep_filter_event_has_trivial(struct tep_event_filter *filter,
-				 int event_id,
-				 enum tep_filter_trivial_type type);
-
 int tep_filter_copy(struct tep_event_filter *dest, struct tep_event_filter *source);
 
-int tep_update_trivial(struct tep_event_filter *dest, struct tep_event_filter *source,
-			enum tep_filter_trivial_type type);
-
 int tep_filter_compare(struct tep_event_filter *filter1, struct tep_event_filter *filter2);
 
 #endif /* _PARSE_EVENTS_H */
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index cb5ce66dab6e..4ffd8b25a852 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -1522,167 +1522,6 @@ int tep_filter_copy(struct tep_event_filter *dest, struct tep_event_filter *sour
 	return ret;
 }
 
-
-/**
- * tep_update_trivial - update the trivial filters with the given filter
- * @dest - the filter to update
- * @source - the filter as the source of the update
- * @type - the type of trivial filter to update.
- *
- * Scan dest for trivial events matching @type to replace with the source.
- *
- * Returns 0 on success and -1 if there was a problem updating, but
- *   events may have still been updated on error.
- */
-int tep_update_trivial(struct tep_event_filter *dest, struct tep_event_filter *source,
-		       enum tep_filter_trivial_type type)
-{
-	struct tep_handle *src_pevent;
-	struct tep_handle *dest_pevent;
-	struct tep_event *event;
-	struct tep_filter_type *filter_type;
-	struct tep_filter_arg *arg;
-	char *str;
-	int i;
-
-	src_pevent = source->pevent;
-	dest_pevent = dest->pevent;
-
-	/* Do nothing if either of the filters has nothing to filter */
-	if (!dest->filters || !source->filters)
-		return 0;
-
-	for (i = 0; i < dest->filters; i++) {
-		filter_type = &dest->event_filters[i];
-		arg = filter_type->filter;
-		if (arg->type != TEP_FILTER_ARG_BOOLEAN)
-			continue;
-		if ((arg->boolean.value && type == TEP_FILTER_TRIVIAL_FALSE) ||
-		    (!arg->boolean.value && type == TEP_FILTER_TRIVIAL_TRUE))
-			continue;
-
-		event = filter_type->event;
-
-		if (src_pevent != dest_pevent) {
-			/* do a look up */
-			event = tep_find_event_by_name(src_pevent,
-						       event->system,
-						       event->name);
-			if (!event)
-				return -1;
-		}
-
-		str = tep_filter_make_string(source, event->id);
-		if (!str)
-			continue;
-
-		/* Don't bother if the filter is trivial too */
-		if (strcmp(str, "TRUE") != 0 && strcmp(str, "FALSE") != 0)
-			filter_event(dest, event, str, NULL);
-		free(str);
-	}
-	return 0;
-}
-
-/**
- * tep_filter_clear_trivial - clear TRUE and FALSE filters
- * @filter: the filter to remove trivial filters from
- * @type: remove only true, false, or both
- *
- * Removes filters that only contain a TRUE or FALES boolean arg.
- *
- * Returns 0 on success and -1 if there was a problem.
- */
-int tep_filter_clear_trivial(struct tep_event_filter *filter,
-			     enum tep_filter_trivial_type type)
-{
-	struct tep_filter_type *filter_type;
-	int count = 0;
-	int *ids = NULL;
-	int i;
-
-	if (!filter->filters)
-		return 0;
-
-	/*
-	 * Two steps, first get all ids with trivial filters.
-	 *  then remove those ids.
-	 */
-	for (i = 0; i < filter->filters; i++) {
-		int *new_ids;
-
-		filter_type = &filter->event_filters[i];
-		if (filter_type->filter->type != TEP_FILTER_ARG_BOOLEAN)
-			continue;
-		switch (type) {
-		case TEP_FILTER_TRIVIAL_FALSE:
-			if (filter_type->filter->boolean.value)
-				continue;
-			break;
-		case TEP_FILTER_TRIVIAL_TRUE:
-			if (!filter_type->filter->boolean.value)
-				continue;
-		default:
-			break;
-		}
-
-		new_ids = realloc(ids, sizeof(*ids) * (count + 1));
-		if (!new_ids) {
-			free(ids);
-			return -1;
-		}
-
-		ids = new_ids;
-		ids[count++] = filter_type->event_id;
-	}
-
-	if (!count)
-		return 0;
-
-	for (i = 0; i < count; i++)
-		tep_filter_remove_event(filter, ids[i]);
-
-	free(ids);
-	return 0;
-}
-
-/**
- * tep_filter_event_has_trivial - return true event contains trivial filter
- * @filter: the filter with the information
- * @event_id: the id of the event to test
- * @type: trivial type to test for (TRUE, FALSE, EITHER)
- *
- * Returns 1 if the event contains a matching trivial type
- *  otherwise 0.
- */
-int tep_filter_event_has_trivial(struct tep_event_filter *filter,
-				 int event_id,
-				 enum tep_filter_trivial_type type)
-{
-	struct tep_filter_type *filter_type;
-
-	if (!filter->filters)
-		return 0;
-
-	filter_type = find_filter_type(filter, event_id);
-
-	if (!filter_type)
-		return 0;
-
-	if (filter_type->filter->type != TEP_FILTER_ARG_BOOLEAN)
-		return 0;
-
-	switch (type) {
-	case TEP_FILTER_TRIVIAL_FALSE:
-		return !filter_type->filter->boolean.value;
-
-	case TEP_FILTER_TRIVIAL_TRUE:
-		return filter_type->filter->boolean.value;
-	default:
-		return 1;
-	}
-}
-
 static int test_filter(struct tep_event *event, struct tep_filter_arg *arg,
 		       struct tep_record *record, enum tep_errno *err);
 
@@ -2409,14 +2248,6 @@ int tep_filter_compare(struct tep_event_filter *filter1, struct tep_event_filter
 			break;
 		if (filter_type1->filter->type != filter_type2->filter->type)
 			break;
-		switch (filter_type1->filter->type) {
-		case TEP_FILTER_TRIVIAL_FALSE:
-		case TEP_FILTER_TRIVIAL_TRUE:
-			/* trivial types just need the type compared */
-			continue;
-		default:
-			break;
-		}
 		/* The best way to compare complex filters is with strings */
 		str1 = arg_to_str(filter1, filter_type1->filter);
 		str2 = arg_to_str(filter2, filter_type2->filter);

^ permalink raw reply	[flat|nested] 55+ messages in thread

* [tip:perf/core] tools lib traceevent: Remove call to exit() from tep_filter_add_filter_str()
  2019-04-01 16:43 ` [PATCH 10/15] tools/lib/traceevent: Remove call to exit() from tep_filter_add_filter_str() Steven Rostedt
@ 2019-04-05 11:47   ` tip-bot for Tzvetomir Stoyanov
  0 siblings, 0 replies; 55+ messages in thread
From: tip-bot for Tzvetomir Stoyanov @ 2019-04-05 11:47 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: tglx, acme, akpm, linux-kernel, mingo, namhyung, tstoyanov,
	jolsa, hpa, rostedt

Commit-ID:  fea6b632235b9bedc58c72cd24f1865bb0c365db
Gitweb:     https://git.kernel.org/tip/fea6b632235b9bedc58c72cd24f1865bb0c365db
Author:     Tzvetomir Stoyanov <tstoyanov@vmware.com>
AuthorDate: Mon, 1 Apr 2019 12:43:15 -0400
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 1 Apr 2019 15:18:09 -0300

tools lib traceevent: Remove call to exit() from tep_filter_add_filter_str()

This patch removes call to exit() from tep_filter_add_filter_str(). A
library function should not force the application to exit. In the
current implementation tep_filter_add_filter_str() calls exit() when a
special "test_filters" mode is set, used only for debugging purposes.
When this mode is set and a filter is added - its string is printed to
the console and exit() is called. This patch changes the logic - when in
"test_filters" mode, the filter string is still printed, but the exit()
is not called. It is up to the application to track when "test_filters"
mode is set and to call exit, if needed.

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20190326154328.28718-9-tstoyanov@vmware.com
Link: http://lkml.kernel.org/r/20190401164344.121717482@goodmis.org
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/parse-filter.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index 4ffd8b25a852..3320c0a0e343 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -1346,9 +1346,6 @@ enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
 
 	free_events(events);
 
-	if (rtn >= 0 && pevent->test_filters)
-		exit(0);
-
 	return rtn;
 }
 

^ permalink raw reply	[flat|nested] 55+ messages in thread

* [tip:perf/core] tools tools, tools lib traceevent: Make traceevent APIs more consistent
  2019-04-01 16:43 ` [PATCH 11/15] tools/perf,tools/lib/traceevent: Make traceevent APIs more consistent Steven Rostedt
@ 2019-04-05 11:48   ` tip-bot for Tzvetomir Stoyanov
  0 siblings, 0 replies; 55+ messages in thread
From: tip-bot for Tzvetomir Stoyanov @ 2019-04-05 11:48 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: linux-kernel, namhyung, tglx, akpm, acme, hpa, jolsa, rostedt,
	mingo, tstoyanov

Commit-ID:  55c34ae076f62ed7ad0fc86cd8b697a6f577c431
Gitweb:     https://git.kernel.org/tip/55c34ae076f62ed7ad0fc86cd8b697a6f577c431
Author:     Tzvetomir Stoyanov <tstoyanov@vmware.com>
AuthorDate: Mon, 1 Apr 2019 12:43:16 -0400
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 1 Apr 2019 15:18:09 -0300

tools tools, tools lib traceevent: Make traceevent APIs more consistent

Rename some traceevent APIs for consistency:

tep_pid_is_registered() to tep_is_pid_registered()
tep_file_bigendian() to tep_is_file_bigendian()

  to make the names and return values consistent with other tep_is_... APIs

tep_data_lat_fmt() to tep_data_latency_format()

  to make the name more descriptive

tep_host_bigendian() to tep_is_bigendian()
tep_set_host_bigendian() to tep_set_local_bigendian()
tep_is_host_bigendian() to tep_is_local_bigendian()

  "host" can be confused with VMs, and "local" is about the local
  machine. All tep_is_..._bigendian(struct tep_handle *tep) APIs return
  the saved data in the tep handle, while tep_is_bigendian() returns
  the running machine's endianness.

All tep_is_... functions are modified to return bool value, instead of int.

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20190327141946.4353-2-tstoyanov@vmware.com
Link: http://lkml.kernel.org/r/20190401164344.288624897@goodmis.org
[ Removed some extra parenthesis around return statements ]
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse-api.c | 40 +++++++++++++++++-----------------
 tools/lib/traceevent/event-parse.c     | 26 +++++++++++-----------
 tools/lib/traceevent/event-parse.h     | 16 +++++++-------
 tools/lib/traceevent/plugin_kvm.c      |  4 ++--
 tools/perf/util/trace-event-read.c     |  2 +-
 tools/perf/util/trace-event.c          |  4 ++--
 6 files changed, 46 insertions(+), 46 deletions(-)

diff --git a/tools/lib/traceevent/event-parse-api.c b/tools/lib/traceevent/event-parse-api.c
index 002b3f73862b..f7184575f0d9 100644
--- a/tools/lib/traceevent/event-parse-api.c
+++ b/tools/lib/traceevent/event-parse-api.c
@@ -155,10 +155,10 @@ int tep_get_header_page_size(struct tep_handle *pevent)
 }
 
 /**
- * tep_get_header_timestamp_size - get size of the time stamp in the header page
+ * tep_get_header_timestamp_size - get size of the timestamp in the header page
  * @tep: a handle to the tep_handle
  *
- * This returns size of the time stamp in the header page
+ * This returns size of the timestamp in the header page
  * If @tep is NULL, 0 is returned.
  */
 int tep_get_header_timestamp_size(struct tep_handle *tep)
@@ -249,17 +249,17 @@ void tep_set_page_size(struct tep_handle *pevent, int _page_size)
 }
 
 /**
- * tep_file_bigendian - get if the file is in big endian order
+ * tep_is_file_bigendian - return the endian of the file
  * @pevent: a handle to the tep_handle
  *
- * This returns if the file is in big endian order
- * If @pevent is NULL, 0 is returned.
+ * This returns true if the file is in big endian order
+ * If @pevent is NULL, false is returned.
  */
-int tep_file_bigendian(struct tep_handle *pevent)
+bool tep_is_file_bigendian(struct tep_handle *pevent)
 {
 	if (pevent)
-		return pevent->file_bigendian;
-	return 0;
+		return pevent->file_bigendian == TEP_BIG_ENDIAN;
+	return false;
 }
 
 /**
@@ -276,27 +276,27 @@ void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian)
 }
 
 /**
- * tep_is_host_bigendian - get if the order of the current host is big endian
+ * tep_is_local_bigendian - return the endian of the saved local machine
  * @pevent: a handle to the tep_handle
  *
- * This gets if the order of the current host is big endian
- * If @pevent is NULL, 0 is returned.
+ * This returns true if the saved local machine in @pevent is big endian.
+ * If @pevent is NULL, false is returned.
  */
-int tep_is_host_bigendian(struct tep_handle *pevent)
+bool tep_is_local_bigendian(struct tep_handle *pevent)
 {
 	if (pevent)
-		return pevent->host_bigendian;
+		return pevent->host_bigendian == TEP_BIG_ENDIAN;
 	return 0;
 }
 
 /**
- * tep_set_host_bigendian - set the order of the local host
+ * tep_set_local_bigendian - set the stored local machine endian order
  * @pevent: a handle to the tep_handle
  * @endian: non zero, if the local host has big endian order
  *
- * This sets the order of the local host
+ * This sets the endian order for the local machine.
  */
-void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian)
+void tep_set_local_bigendian(struct tep_handle *pevent, enum tep_endian endian)
 {
 	if (pevent)
 		pevent->host_bigendian = endian;
@@ -306,14 +306,14 @@ void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian)
  * tep_is_latency_format - get if the latency output format is configured
  * @pevent: a handle to the tep_handle
  *
- * This gets if the latency output format is configured
- * If @pevent is NULL, 0 is returned.
+ * This returns true if the latency output format is configured
+ * If @pevent is NULL, false is returned.
  */
-int tep_is_latency_format(struct tep_handle *pevent)
+bool tep_is_latency_format(struct tep_handle *pevent)
 {
 	if (pevent)
 		return pevent->latency_format;
-	return 0;
+	return false;
 }
 
 /**
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 000ab7514be7..8836702122be 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -199,23 +199,23 @@ static const char *find_cmdline(struct tep_handle *pevent, int pid)
 }
 
 /**
- * tep_pid_is_registered - return if a pid has a cmdline registered
+ * tep_is_pid_registered - return if a pid has a cmdline registered
  * @pevent: handle for the pevent
  * @pid: The pid to check if it has a cmdline registered with.
  *
- * Returns 1 if the pid has a cmdline mapped to it
- * 0 otherwise.
+ * Returns true if the pid has a cmdline mapped to it
+ * false otherwise.
  */
-int tep_pid_is_registered(struct tep_handle *pevent, int pid)
+bool tep_is_pid_registered(struct tep_handle *pevent, int pid)
 {
 	const struct tep_cmdline *comm;
 	struct tep_cmdline key;
 
 	if (!pid)
-		return 1;
+		return true;
 
 	if (!pevent->cmdlines && cmdline_init(pevent))
-		return 0;
+		return false;
 
 	key.pid = pid;
 
@@ -223,8 +223,8 @@ int tep_pid_is_registered(struct tep_handle *pevent, int pid)
 		       sizeof(*pevent->cmdlines), cmdline_cmp);
 
 	if (comm)
-		return 1;
-	return 0;
+		return true;
+	return false;
 }
 
 /*
@@ -5172,7 +5172,7 @@ out_failed:
 }
 
 /**
- * tep_data_lat_fmt - parse the data for the latency format
+ * tep_data_latency_format - parse the data for the latency format
  * @pevent: a handle to the pevent
  * @s: the trace_seq to write to
  * @record: the record to read from
@@ -5181,8 +5181,8 @@ out_failed:
  * need rescheduling, in hard/soft interrupt, preempt count
  * and lock depth) and places it into the trace_seq.
  */
-void tep_data_lat_fmt(struct tep_handle *pevent,
-		      struct trace_seq *s, struct tep_record *record)
+void tep_data_latency_format(struct tep_handle *pevent,
+			     struct trace_seq *s, struct tep_record *record)
 {
 	static int check_lock_depth = 1;
 	static int check_migrate_disable = 1;
@@ -5532,7 +5532,7 @@ void tep_print_event_time(struct tep_handle *pevent, struct trace_seq *s,
 	}
 
 	if (pevent->latency_format) {
-		tep_data_lat_fmt(pevent, s, record);
+		tep_data_latency_format(pevent, s, record);
 	}
 
 	if (use_usec_format) {
@@ -6827,7 +6827,7 @@ struct tep_handle *tep_alloc(void)
 
 	if (pevent) {
 		pevent->ref_count = 1;
-		pevent->host_bigendian = tep_host_bigendian();
+		pevent->host_bigendian = tep_is_bigendian();
 	}
 
 	return pevent;
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 3833d1384599..d473dc557978 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -412,7 +412,7 @@ void tep_set_flag(struct tep_handle *tep, int flag);
 void tep_clear_flag(struct tep_handle *tep, enum tep_flag flag);
 bool tep_check_flags(struct tep_handle *tep, enum tep_flag flags);
 
-static inline int tep_host_bigendian(void)
+static inline int tep_is_bigendian(void)
 {
 	unsigned char str[] = { 0x1, 0x2, 0x3, 0x4 };
 	unsigned int val;
@@ -440,7 +440,7 @@ int tep_register_function(struct tep_handle *pevent, char *name,
 			  unsigned long long addr, char *mod);
 int tep_register_print_string(struct tep_handle *pevent, const char *fmt,
 			      unsigned long long addr);
-int tep_pid_is_registered(struct tep_handle *pevent, int pid);
+bool tep_is_pid_registered(struct tep_handle *pevent, int pid);
 
 void tep_print_event_task(struct tep_handle *pevent, struct trace_seq *s,
 			  struct tep_event *event,
@@ -525,8 +525,8 @@ tep_find_event_by_name(struct tep_handle *pevent, const char *sys, const char *n
 struct tep_event *
 tep_find_event_by_record(struct tep_handle *pevent, struct tep_record *record);
 
-void tep_data_lat_fmt(struct tep_handle *pevent,
-		      struct trace_seq *s, struct tep_record *record);
+void tep_data_latency_format(struct tep_handle *pevent,
+			     struct trace_seq *s, struct tep_record *record);
 int tep_data_type(struct tep_handle *pevent, struct tep_record *rec);
 int tep_data_pid(struct tep_handle *pevent, struct tep_record *rec);
 int tep_data_preempt_count(struct tep_handle *pevent, struct tep_record *rec);
@@ -563,11 +563,11 @@ int tep_get_long_size(struct tep_handle *pevent);
 void tep_set_long_size(struct tep_handle *pevent, int long_size);
 int tep_get_page_size(struct tep_handle *pevent);
 void tep_set_page_size(struct tep_handle *pevent, int _page_size);
-int tep_file_bigendian(struct tep_handle *pevent);
+bool tep_is_file_bigendian(struct tep_handle *pevent);
 void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian);
-int tep_is_host_bigendian(struct tep_handle *pevent);
-void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian);
-int tep_is_latency_format(struct tep_handle *pevent);
+bool tep_is_local_bigendian(struct tep_handle *pevent);
+void tep_set_local_bigendian(struct tep_handle *pevent, enum tep_endian endian);
+bool tep_is_latency_format(struct tep_handle *pevent);
 void tep_set_latency_format(struct tep_handle *pevent, int lat);
 int tep_get_header_page_size(struct tep_handle *pevent);
 int tep_get_header_timestamp_size(struct tep_handle *tep);
diff --git a/tools/lib/traceevent/plugin_kvm.c b/tools/lib/traceevent/plugin_kvm.c
index 64b9c25a1fd3..688e5d97d7a7 100644
--- a/tools/lib/traceevent/plugin_kvm.c
+++ b/tools/lib/traceevent/plugin_kvm.c
@@ -389,8 +389,8 @@ static int kvm_mmu_print_role(struct trace_seq *s, struct tep_record *record,
 	 * We can only use the structure if file is of the same
 	 * endianness.
 	 */
-	if (tep_file_bigendian(event->pevent) ==
-	    tep_is_host_bigendian(event->pevent)) {
+	if (tep_is_file_bigendian(event->pevent) ==
+	    tep_is_local_bigendian(event->pevent)) {
 
 		trace_seq_printf(s, "%u q%u%s %s%s %spae %snxe %swp%s%s%s",
 				 role.level,
diff --git a/tools/perf/util/trace-event-read.c b/tools/perf/util/trace-event-read.c
index efe2f58cff4e..48d53d8e3e16 100644
--- a/tools/perf/util/trace-event-read.c
+++ b/tools/perf/util/trace-event-read.c
@@ -442,7 +442,7 @@ ssize_t trace_report(int fd, struct trace_event *tevent, bool __repipe)
 
 	tep_set_flag(pevent, TEP_NSEC_OUTPUT);
 	tep_set_file_bigendian(pevent, file_bigendian);
-	tep_set_host_bigendian(pevent, host_bigendian);
+	tep_set_local_bigendian(pevent, host_bigendian);
 
 	if (do_read(buf, 1) < 0)
 		goto out;
diff --git a/tools/perf/util/trace-event.c b/tools/perf/util/trace-event.c
index cbe0dd758e3a..01b9d89bf5bf 100644
--- a/tools/perf/util/trace-event.c
+++ b/tools/perf/util/trace-event.c
@@ -40,7 +40,7 @@ int trace_event__init(struct trace_event *t)
 
 static int trace_event__init2(void)
 {
-	int be = tep_host_bigendian();
+	int be = tep_is_bigendian();
 	struct tep_handle *pevent;
 
 	if (trace_event__init(&tevent))
@@ -49,7 +49,7 @@ static int trace_event__init2(void)
 	pevent = tevent.pevent;
 	tep_set_flag(pevent, TEP_NSEC_OUTPUT);
 	tep_set_file_bigendian(pevent, be);
-	tep_set_host_bigendian(pevent, be);
+	tep_set_local_bigendian(pevent, be);
 	tevent_initialized = true;
 	return 0;
 }

^ permalink raw reply	[flat|nested] 55+ messages in thread

* [tip:perf/core] tools lib traceevent: Rename input arguments of libtraceevent APIs from pevent to tep
  2019-04-01 16:43 ` [PATCH 12/15] tools/lib/traceevent: Rename input arguments of libtraceevent APIs from pevent to tep Steven Rostedt
@ 2019-04-05 11:49   ` tip-bot for Tzvetomir Stoyanov
  0 siblings, 0 replies; 55+ messages in thread
From: tip-bot for Tzvetomir Stoyanov @ 2019-04-05 11:49 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: tstoyanov, tglx, acme, namhyung, linux-kernel, akpm, hpa,
	rostedt, mingo, jolsa

Commit-ID:  047ff221e3ab07129a3566683e95a4d142f7c3c0
Gitweb:     https://git.kernel.org/tip/047ff221e3ab07129a3566683e95a4d142f7c3c0
Author:     Tzvetomir Stoyanov <tstoyanov@vmware.com>
AuthorDate: Mon, 1 Apr 2019 12:43:17 -0400
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 1 Apr 2019 15:18:09 -0300

tools lib traceevent: Rename input arguments of libtraceevent APIs from pevent to tep

Input arguments of libtraceevent APIs are renamed from "struct
tep_handle *pevent" to "struct tep_handle *tep". This makes the API
consistent with the chosen naming convention: tep (trace event parser),
instead of the old pevent.

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/linux-trace-devel/20190401132111.13727-2-tstoyanov@vmware.com
Link: http://lkml.kernel.org/r/20190401164344.465573837@goodmis.org
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse-api.c     | 132 ++++-----
 tools/lib/traceevent/event-parse-local.h   |   6 +-
 tools/lib/traceevent/event-parse.c         | 452 ++++++++++++++---------------
 tools/lib/traceevent/event-parse.h         | 123 ++++----
 tools/lib/traceevent/event-plugin.c        |   8 +-
 tools/lib/traceevent/parse-filter.c        |   8 +-
 tools/lib/traceevent/plugin_cfg80211.c     |   8 +-
 tools/lib/traceevent/plugin_function.c     |   8 +-
 tools/lib/traceevent/plugin_hrtimer.c      |  12 +-
 tools/lib/traceevent/plugin_jbd2.c         |  12 +-
 tools/lib/traceevent/plugin_kmem.c         |  28 +-
 tools/lib/traceevent/plugin_kvm.c          |  44 +--
 tools/lib/traceevent/plugin_mac80211.c     |   8 +-
 tools/lib/traceevent/plugin_sched_switch.c |  16 +-
 tools/lib/traceevent/plugin_scsi.c         |   8 +-
 tools/lib/traceevent/plugin_xen.c          |   8 +-
 16 files changed, 439 insertions(+), 442 deletions(-)

diff --git a/tools/lib/traceevent/event-parse-api.c b/tools/lib/traceevent/event-parse-api.c
index f7184575f0d9..988587840c80 100644
--- a/tools/lib/traceevent/event-parse-api.c
+++ b/tools/lib/traceevent/event-parse-api.c
@@ -92,11 +92,11 @@ bool tep_test_flag(struct tep_handle *tep, enum tep_flag flag)
 	return false;
 }
 
-unsigned short tep_data2host2(struct tep_handle *pevent, unsigned short data)
+unsigned short tep_data2host2(struct tep_handle *tep, unsigned short data)
 {
 	unsigned short swap;
 
-	if (!pevent || pevent->host_bigendian == pevent->file_bigendian)
+	if (!tep || tep->host_bigendian == tep->file_bigendian)
 		return data;
 
 	swap = ((data & 0xffULL) << 8) |
@@ -105,11 +105,11 @@ unsigned short tep_data2host2(struct tep_handle *pevent, unsigned short data)
 	return swap;
 }
 
-unsigned int tep_data2host4(struct tep_handle *pevent, unsigned int data)
+unsigned int tep_data2host4(struct tep_handle *tep, unsigned int data)
 {
 	unsigned int swap;
 
-	if (!pevent || pevent->host_bigendian == pevent->file_bigendian)
+	if (!tep || tep->host_bigendian == tep->file_bigendian)
 		return data;
 
 	swap = ((data & 0xffULL) << 24) |
@@ -121,11 +121,11 @@ unsigned int tep_data2host4(struct tep_handle *pevent, unsigned int data)
 }
 
 unsigned long long
-tep_data2host8(struct tep_handle *pevent, unsigned long long data)
+tep_data2host8(struct tep_handle *tep, unsigned long long data)
 {
 	unsigned long long swap;
 
-	if (!pevent || pevent->host_bigendian == pevent->file_bigendian)
+	if (!tep || tep->host_bigendian == tep->file_bigendian)
 		return data;
 
 	swap = ((data & 0xffULL) << 56) |
@@ -142,15 +142,15 @@ tep_data2host8(struct tep_handle *pevent, unsigned long long data)
 
 /**
  * tep_get_header_page_size - get size of the header page
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This returns size of the header page
- * If @pevent is NULL, 0 is returned.
+ * If @tep is NULL, 0 is returned.
  */
-int tep_get_header_page_size(struct tep_handle *pevent)
+int tep_get_header_page_size(struct tep_handle *tep)
 {
-	if (pevent)
-		return pevent->header_page_size_size;
+	if (tep)
+		return tep->header_page_size_size;
 	return 0;
 }
 
@@ -170,163 +170,163 @@ int tep_get_header_timestamp_size(struct tep_handle *tep)
 
 /**
  * tep_get_cpus - get the number of CPUs
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This returns the number of CPUs
- * If @pevent is NULL, 0 is returned.
+ * If @tep is NULL, 0 is returned.
  */
-int tep_get_cpus(struct tep_handle *pevent)
+int tep_get_cpus(struct tep_handle *tep)
 {
-	if (pevent)
-		return pevent->cpus;
+	if (tep)
+		return tep->cpus;
 	return 0;
 }
 
 /**
  * tep_set_cpus - set the number of CPUs
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This sets the number of CPUs
  */
-void tep_set_cpus(struct tep_handle *pevent, int cpus)
+void tep_set_cpus(struct tep_handle *tep, int cpus)
 {
-	if (pevent)
-		pevent->cpus = cpus;
+	if (tep)
+		tep->cpus = cpus;
 }
 
 /**
  * tep_get_long_size - get the size of a long integer on the traced machine
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This returns the size of a long integer on the traced machine
- * If @pevent is NULL, 0 is returned.
+ * If @tep is NULL, 0 is returned.
  */
-int tep_get_long_size(struct tep_handle *pevent)
+int tep_get_long_size(struct tep_handle *tep)
 {
-	if (pevent)
-		return pevent->long_size;
+	if (tep)
+		return tep->long_size;
 	return 0;
 }
 
 /**
  * tep_set_long_size - set the size of a long integer on the traced machine
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  * @size: size, in bytes, of a long integer
  *
  * This sets the size of a long integer on the traced machine
  */
-void tep_set_long_size(struct tep_handle *pevent, int long_size)
+void tep_set_long_size(struct tep_handle *tep, int long_size)
 {
-	if (pevent)
-		pevent->long_size = long_size;
+	if (tep)
+		tep->long_size = long_size;
 }
 
 /**
  * tep_get_page_size - get the size of a memory page on the traced machine
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This returns the size of a memory page on the traced machine
- * If @pevent is NULL, 0 is returned.
+ * If @tep is NULL, 0 is returned.
  */
-int tep_get_page_size(struct tep_handle *pevent)
+int tep_get_page_size(struct tep_handle *tep)
 {
-	if (pevent)
-		return pevent->page_size;
+	if (tep)
+		return tep->page_size;
 	return 0;
 }
 
 /**
  * tep_set_page_size - set the size of a memory page on the traced machine
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  * @_page_size: size of a memory page, in bytes
  *
  * This sets the size of a memory page on the traced machine
  */
-void tep_set_page_size(struct tep_handle *pevent, int _page_size)
+void tep_set_page_size(struct tep_handle *tep, int _page_size)
 {
-	if (pevent)
-		pevent->page_size = _page_size;
+	if (tep)
+		tep->page_size = _page_size;
 }
 
 /**
  * tep_is_file_bigendian - return the endian of the file
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This returns true if the file is in big endian order
- * If @pevent is NULL, false is returned.
+ * If @tep is NULL, false is returned.
  */
-bool tep_is_file_bigendian(struct tep_handle *pevent)
+bool tep_is_file_bigendian(struct tep_handle *tep)
 {
-	if (pevent)
-		return pevent->file_bigendian == TEP_BIG_ENDIAN;
+	if (tep)
+		return (tep->file_bigendian == TEP_BIG_ENDIAN);
 	return false;
 }
 
 /**
  * tep_set_file_bigendian - set if the file is in big endian order
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  * @endian: non zero, if the file is in big endian order
  *
  * This sets if the file is in big endian order
  */
-void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian)
+void tep_set_file_bigendian(struct tep_handle *tep, enum tep_endian endian)
 {
-	if (pevent)
-		pevent->file_bigendian = endian;
+	if (tep)
+		tep->file_bigendian = endian;
 }
 
 /**
  * tep_is_local_bigendian - return the endian of the saved local machine
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
- * This returns true if the saved local machine in @pevent is big endian.
- * If @pevent is NULL, false is returned.
+ * This returns true if the saved local machine in @tep is big endian.
+ * If @tep is NULL, false is returned.
  */
-bool tep_is_local_bigendian(struct tep_handle *pevent)
+bool tep_is_local_bigendian(struct tep_handle *tep)
 {
-	if (pevent)
-		return pevent->host_bigendian == TEP_BIG_ENDIAN;
+	if (tep)
+		return (tep->host_bigendian == TEP_BIG_ENDIAN);
 	return 0;
 }
 
 /**
  * tep_set_local_bigendian - set the stored local machine endian order
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  * @endian: non zero, if the local host has big endian order
  *
  * This sets the endian order for the local machine.
  */
-void tep_set_local_bigendian(struct tep_handle *pevent, enum tep_endian endian)
+void tep_set_local_bigendian(struct tep_handle *tep, enum tep_endian endian)
 {
-	if (pevent)
-		pevent->host_bigendian = endian;
+	if (tep)
+		tep->host_bigendian = endian;
 }
 
 /**
  * tep_is_latency_format - get if the latency output format is configured
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  *
  * This returns true if the latency output format is configured
- * If @pevent is NULL, false is returned.
+ * If @tep is NULL, false is returned.
  */
-bool tep_is_latency_format(struct tep_handle *pevent)
+bool tep_is_latency_format(struct tep_handle *tep)
 {
-	if (pevent)
-		return pevent->latency_format;
+	if (tep)
+		return (tep->latency_format);
 	return false;
 }
 
 /**
  * tep_set_latency_format - set the latency output format
- * @pevent: a handle to the tep_handle
+ * @tep: a handle to the tep_handle
  * @lat: non zero for latency output format
  *
  * This sets the latency output format
   */
-void tep_set_latency_format(struct tep_handle *pevent, int lat)
+void tep_set_latency_format(struct tep_handle *tep, int lat)
 {
-	if (pevent)
-		pevent->latency_format = lat;
+	if (tep)
+		tep->latency_format = lat;
 }
 
 /**
diff --git a/tools/lib/traceevent/event-parse-local.h b/tools/lib/traceevent/event-parse-local.h
index 35833ee32d6c..09aa142f7fdd 100644
--- a/tools/lib/traceevent/event-parse-local.h
+++ b/tools/lib/traceevent/event-parse-local.h
@@ -92,8 +92,8 @@ struct tep_handle {
 void tep_free_event(struct tep_event *event);
 void tep_free_format_field(struct tep_format_field *field);
 
-unsigned short tep_data2host2(struct tep_handle *pevent, unsigned short data);
-unsigned int tep_data2host4(struct tep_handle *pevent, unsigned int data);
-unsigned long long tep_data2host8(struct tep_handle *pevent, unsigned long long data);
+unsigned short tep_data2host2(struct tep_handle *tep, unsigned short data);
+unsigned int tep_data2host4(struct tep_handle *tep, unsigned int data);
+unsigned long long tep_data2host8(struct tep_handle *tep, unsigned long long data);
 
 #endif /* _PARSE_EVENTS_INT_H */
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 8836702122be..ceefa9b3d726 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -200,13 +200,13 @@ static const char *find_cmdline(struct tep_handle *pevent, int pid)
 
 /**
  * tep_is_pid_registered - return if a pid has a cmdline registered
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @pid: The pid to check if it has a cmdline registered with.
  *
  * Returns true if the pid has a cmdline mapped to it
  * false otherwise.
  */
-bool tep_is_pid_registered(struct tep_handle *pevent, int pid)
+bool tep_is_pid_registered(struct tep_handle *tep, int pid)
 {
 	const struct tep_cmdline *comm;
 	struct tep_cmdline key;
@@ -214,13 +214,13 @@ bool tep_is_pid_registered(struct tep_handle *pevent, int pid)
 	if (!pid)
 		return true;
 
-	if (!pevent->cmdlines && cmdline_init(pevent))
+	if (!tep->cmdlines && cmdline_init(tep))
 		return false;
 
 	key.pid = pid;
 
-	comm = bsearch(&key, pevent->cmdlines, pevent->cmdline_count,
-		       sizeof(*pevent->cmdlines), cmdline_cmp);
+	comm = bsearch(&key, tep->cmdlines, tep->cmdline_count,
+		       sizeof(*tep->cmdlines), cmdline_cmp);
 
 	if (comm)
 		return true;
@@ -288,13 +288,13 @@ static int add_new_comm(struct tep_handle *pevent,
 	return 0;
 }
 
-static int _tep_register_comm(struct tep_handle *pevent,
+static int _tep_register_comm(struct tep_handle *tep,
 			      const char *comm, int pid, bool override)
 {
 	struct cmdline_list *item;
 
-	if (pevent->cmdlines)
-		return add_new_comm(pevent, comm, pid, override);
+	if (tep->cmdlines)
+		return add_new_comm(tep, comm, pid, override);
 
 	item = malloc(sizeof(*item));
 	if (!item)
@@ -309,17 +309,17 @@ static int _tep_register_comm(struct tep_handle *pevent,
 		return -1;
 	}
 	item->pid = pid;
-	item->next = pevent->cmdlist;
+	item->next = tep->cmdlist;
 
-	pevent->cmdlist = item;
-	pevent->cmdline_count++;
+	tep->cmdlist = item;
+	tep->cmdline_count++;
 
 	return 0;
 }
 
 /**
  * tep_register_comm - register a pid / comm mapping
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @comm: the command line to register
  * @pid: the pid to map the command line to
  *
@@ -327,14 +327,14 @@ static int _tep_register_comm(struct tep_handle *pevent,
  * a given pid. The comm is duplicated. If a command with the same pid
  * already exist, -1 is returned and errno is set to EEXIST
  */
-int tep_register_comm(struct tep_handle *pevent, const char *comm, int pid)
+int tep_register_comm(struct tep_handle *tep, const char *comm, int pid)
 {
-	return _tep_register_comm(pevent, comm, pid, false);
+	return _tep_register_comm(tep, comm, pid, false);
 }
 
 /**
  * tep_override_comm - register a pid / comm mapping
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @comm: the command line to register
  * @pid: the pid to map the command line to
  *
@@ -342,19 +342,19 @@ int tep_register_comm(struct tep_handle *pevent, const char *comm, int pid)
  * a given pid. The comm is duplicated. If a command with the same pid
  * already exist, the command string is udapted with the new one
  */
-int tep_override_comm(struct tep_handle *pevent, const char *comm, int pid)
+int tep_override_comm(struct tep_handle *tep, const char *comm, int pid)
 {
-	if (!pevent->cmdlines && cmdline_init(pevent)) {
+	if (!tep->cmdlines && cmdline_init(tep)) {
 		errno = ENOMEM;
 		return -1;
 	}
-	return _tep_register_comm(pevent, comm, pid, true);
+	return _tep_register_comm(tep, comm, pid, true);
 }
 
-int tep_register_trace_clock(struct tep_handle *pevent, const char *trace_clock)
+int tep_register_trace_clock(struct tep_handle *tep, const char *trace_clock)
 {
-	pevent->trace_clock = strdup(trace_clock);
-	if (!pevent->trace_clock) {
+	tep->trace_clock = strdup(trace_clock);
+	if (!tep->trace_clock) {
 		errno = ENOMEM;
 		return -1;
 	}
@@ -472,15 +472,14 @@ struct func_resolver {
 
 /**
  * tep_set_function_resolver - set an alternative function resolver
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @resolver: function to be used
  * @priv: resolver function private state.
  *
  * Some tools may have already a way to resolve kernel functions, allow them to
- * keep using it instead of duplicating all the entries inside
- * pevent->funclist.
+ * keep using it instead of duplicating all the entries inside tep->funclist.
  */
-int tep_set_function_resolver(struct tep_handle *pevent,
+int tep_set_function_resolver(struct tep_handle *tep,
 			      tep_func_resolver_t *func, void *priv)
 {
 	struct func_resolver *resolver = malloc(sizeof(*resolver));
@@ -491,23 +490,23 @@ int tep_set_function_resolver(struct tep_handle *pevent,
 	resolver->func = func;
 	resolver->priv = priv;
 
-	free(pevent->func_resolver);
-	pevent->func_resolver = resolver;
+	free(tep->func_resolver);
+	tep->func_resolver = resolver;
 
 	return 0;
 }
 
 /**
  * tep_reset_function_resolver - reset alternative function resolver
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  *
  * Stop using whatever alternative resolver was set, use the default
  * one instead.
  */
-void tep_reset_function_resolver(struct tep_handle *pevent)
+void tep_reset_function_resolver(struct tep_handle *tep)
 {
-	free(pevent->func_resolver);
-	pevent->func_resolver = NULL;
+	free(tep->func_resolver);
+	tep->func_resolver = NULL;
 }
 
 static struct func_map *
@@ -531,18 +530,18 @@ find_func(struct tep_handle *pevent, unsigned long long addr)
 
 /**
  * tep_find_function - find a function by a given address
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @addr: the address to find the function with
  *
  * Returns a pointer to the function stored that has the given
  * address. Note, the address does not have to be exact, it
  * will select the function that would contain the address.
  */
-const char *tep_find_function(struct tep_handle *pevent, unsigned long long addr)
+const char *tep_find_function(struct tep_handle *tep, unsigned long long addr)
 {
 	struct func_map *map;
 
-	map = find_func(pevent, addr);
+	map = find_func(tep, addr);
 	if (!map)
 		return NULL;
 
@@ -551,7 +550,7 @@ const char *tep_find_function(struct tep_handle *pevent, unsigned long long addr
 
 /**
  * tep_find_function_address - find a function address by a given address
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @addr: the address to find the function with
  *
  * Returns the address the function starts at. This can be used in
@@ -559,11 +558,11 @@ const char *tep_find_function(struct tep_handle *pevent, unsigned long long addr
  * name and the function offset.
  */
 unsigned long long
-tep_find_function_address(struct tep_handle *pevent, unsigned long long addr)
+tep_find_function_address(struct tep_handle *tep, unsigned long long addr)
 {
 	struct func_map *map;
 
-	map = find_func(pevent, addr);
+	map = find_func(tep, addr);
 	if (!map)
 		return 0;
 
@@ -572,7 +571,7 @@ tep_find_function_address(struct tep_handle *pevent, unsigned long long addr)
 
 /**
  * tep_register_function - register a function with a given address
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @function: the function name to register
  * @addr: the address the function starts at
  * @mod: the kernel module the function may be in (NULL for none)
@@ -580,7 +579,7 @@ tep_find_function_address(struct tep_handle *pevent, unsigned long long addr)
  * This registers a function name with an address and module.
  * The @func passed in is duplicated.
  */
-int tep_register_function(struct tep_handle *pevent, char *func,
+int tep_register_function(struct tep_handle *tep, char *func,
 			  unsigned long long addr, char *mod)
 {
 	struct func_list *item = malloc(sizeof(*item));
@@ -588,7 +587,7 @@ int tep_register_function(struct tep_handle *pevent, char *func,
 	if (!item)
 		return -1;
 
-	item->next = pevent->funclist;
+	item->next = tep->funclist;
 	item->func = strdup(func);
 	if (!item->func)
 		goto out_free;
@@ -601,8 +600,8 @@ int tep_register_function(struct tep_handle *pevent, char *func,
 		item->mod = NULL;
 	item->addr = addr;
 
-	pevent->funclist = item;
-	pevent->func_count++;
+	tep->funclist = item;
+	tep->func_count++;
 
 	return 0;
 
@@ -617,23 +616,23 @@ out_free:
 
 /**
  * tep_print_funcs - print out the stored functions
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  *
  * This prints out the stored functions.
  */
-void tep_print_funcs(struct tep_handle *pevent)
+void tep_print_funcs(struct tep_handle *tep)
 {
 	int i;
 
-	if (!pevent->func_map)
-		func_map_init(pevent);
+	if (!tep->func_map)
+		func_map_init(tep);
 
-	for (i = 0; i < (int)pevent->func_count; i++) {
+	for (i = 0; i < (int)tep->func_count; i++) {
 		printf("%016llx %s",
-		       pevent->func_map[i].addr,
-		       pevent->func_map[i].func);
-		if (pevent->func_map[i].mod)
-			printf(" [%s]\n", pevent->func_map[i].mod);
+		       tep->func_map[i].addr,
+		       tep->func_map[i].func);
+		if (tep->func_map[i].mod)
+			printf(" [%s]\n", tep->func_map[i].mod);
 		else
 			printf("\n");
 	}
@@ -713,14 +712,14 @@ find_printk(struct tep_handle *pevent, unsigned long long addr)
 
 /**
  * tep_register_print_string - register a string by its address
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @fmt: the string format to register
  * @addr: the address the string was located at
  *
  * This registers a string by the address it was stored in the kernel.
  * The @fmt passed in is duplicated.
  */
-int tep_register_print_string(struct tep_handle *pevent, const char *fmt,
+int tep_register_print_string(struct tep_handle *tep, const char *fmt,
 			      unsigned long long addr)
 {
 	struct printk_list *item = malloc(sizeof(*item));
@@ -729,7 +728,7 @@ int tep_register_print_string(struct tep_handle *pevent, const char *fmt,
 	if (!item)
 		return -1;
 
-	item->next = pevent->printklist;
+	item->next = tep->printklist;
 	item->addr = addr;
 
 	/* Strip off quotes and '\n' from the end */
@@ -747,8 +746,8 @@ int tep_register_print_string(struct tep_handle *pevent, const char *fmt,
 	if (strcmp(p, "\\n") == 0)
 		*p = 0;
 
-	pevent->printklist = item;
-	pevent->printk_count++;
+	tep->printklist = item;
+	tep->printk_count++;
 
 	return 0;
 
@@ -760,21 +759,21 @@ out_free:
 
 /**
  * tep_print_printk - print out the stored strings
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  *
  * This prints the string formats that were stored.
  */
-void tep_print_printk(struct tep_handle *pevent)
+void tep_print_printk(struct tep_handle *tep)
 {
 	int i;
 
-	if (!pevent->printk_map)
-		printk_map_init(pevent);
+	if (!tep->printk_map)
+		printk_map_init(tep);
 
-	for (i = 0; i < (int)pevent->printk_count; i++) {
+	for (i = 0; i < (int)tep->printk_count; i++) {
 		printf("%016llx %s\n",
-		       pevent->printk_map[i].addr,
-		       pevent->printk_map[i].printk);
+		       tep->printk_map[i].addr,
+		       tep->printk_map[i].printk);
 	}
 }
 
@@ -1184,7 +1183,7 @@ static enum tep_event_type read_token(char **tok)
 }
 
 /**
- * tep_read_token - access to utilities to use the pevent parser
+ * tep_read_token - access to utilities to use the tep parser
  * @tok: The token to return
  *
  * This will parse tokens from the string given by
@@ -3357,14 +3356,14 @@ tep_find_any_field(struct tep_event *event, const char *name)
 
 /**
  * tep_read_number - read a number from data
- * @pevent: handle for the pevent
+ * @tep: a handle to the trace event parser context
  * @ptr: the raw data
  * @size: the size of the data that holds the number
  *
  * Returns the number (converted to host) from the
  * raw data.
  */
-unsigned long long tep_read_number(struct tep_handle *pevent,
+unsigned long long tep_read_number(struct tep_handle *tep,
 				   const void *ptr, int size)
 {
 	unsigned long long val;
@@ -3373,12 +3372,12 @@ unsigned long long tep_read_number(struct tep_handle *pevent,
 	case 1:
 		return *(unsigned char *)ptr;
 	case 2:
-		return tep_data2host2(pevent, *(unsigned short *)ptr);
+		return tep_data2host2(tep, *(unsigned short *)ptr);
 	case 4:
-		return tep_data2host4(pevent, *(unsigned int *)ptr);
+		return tep_data2host4(tep, *(unsigned int *)ptr);
 	case 8:
 		memcpy(&val, (ptr), sizeof(unsigned long long));
-		return tep_data2host8(pevent, val);
+		return tep_data2host8(tep, val);
 	default:
 		/* BUG! */
 		return 0;
@@ -3499,28 +3498,28 @@ static int events_id_cmp(const void *a, const void *b);
 
 /**
  * tep_find_event - find an event by given id
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @id: the id of the event
  *
  * Returns an event that has a given @id.
  */
-struct tep_event *tep_find_event(struct tep_handle *pevent, int id)
+struct tep_event *tep_find_event(struct tep_handle *tep, int id)
 {
 	struct tep_event **eventptr;
 	struct tep_event key;
 	struct tep_event *pkey = &key;
 
 	/* Check cache first */
-	if (pevent->last_event && pevent->last_event->id == id)
-		return pevent->last_event;
+	if (tep->last_event && tep->last_event->id == id)
+		return tep->last_event;
 
 	key.id = id;
 
-	eventptr = bsearch(&pkey, pevent->events, pevent->nr_events,
-			   sizeof(*pevent->events), events_id_cmp);
+	eventptr = bsearch(&pkey, tep->events, tep->nr_events,
+			   sizeof(*tep->events), events_id_cmp);
 
 	if (eventptr) {
-		pevent->last_event = *eventptr;
+		tep->last_event = *eventptr;
 		return *eventptr;
 	}
 
@@ -3529,7 +3528,7 @@ struct tep_event *tep_find_event(struct tep_handle *pevent, int id)
 
 /**
  * tep_find_event_by_name - find an event by given name
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @sys: the system name to search for
  * @name: the name of the event to search for
  *
@@ -3537,19 +3536,19 @@ struct tep_event *tep_find_event(struct tep_handle *pevent, int id)
  * @sys. If @sys is NULL the first event with @name is returned.
  */
 struct tep_event *
-tep_find_event_by_name(struct tep_handle *pevent,
+tep_find_event_by_name(struct tep_handle *tep,
 		       const char *sys, const char *name)
 {
 	struct tep_event *event = NULL;
 	int i;
 
-	if (pevent->last_event &&
-	    strcmp(pevent->last_event->name, name) == 0 &&
-	    (!sys || strcmp(pevent->last_event->system, sys) == 0))
-		return pevent->last_event;
+	if (tep->last_event &&
+	    strcmp(tep->last_event->name, name) == 0 &&
+	    (!sys || strcmp(tep->last_event->system, sys) == 0))
+		return tep->last_event;
 
-	for (i = 0; i < pevent->nr_events; i++) {
-		event = pevent->events[i];
+	for (i = 0; i < tep->nr_events; i++) {
+		event = tep->events[i];
 		if (strcmp(event->name, name) == 0) {
 			if (!sys)
 				break;
@@ -3557,10 +3556,10 @@ tep_find_event_by_name(struct tep_handle *pevent,
 				break;
 		}
 	}
-	if (i == pevent->nr_events)
+	if (i == tep->nr_events)
 		event = NULL;
 
-	pevent->last_event = event;
+	tep->last_event = event;
 	return event;
 }
 
@@ -5173,7 +5172,7 @@ out_failed:
 
 /**
  * tep_data_latency_format - parse the data for the latency format
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @s: the trace_seq to write to
  * @record: the record to read from
  *
@@ -5181,7 +5180,7 @@ out_failed:
  * need rescheduling, in hard/soft interrupt, preempt count
  * and lock depth) and places it into the trace_seq.
  */
-void tep_data_latency_format(struct tep_handle *pevent,
+void tep_data_latency_format(struct tep_handle *tep,
 			     struct trace_seq *s, struct tep_record *record)
 {
 	static int check_lock_depth = 1;
@@ -5196,13 +5195,13 @@ void tep_data_latency_format(struct tep_handle *pevent,
 	int softirq;
 	void *data = record->data;
 
-	lat_flags = parse_common_flags(pevent, data);
-	pc = parse_common_pc(pevent, data);
+	lat_flags = parse_common_flags(tep, data);
+	pc = parse_common_pc(tep, data);
 	/* lock_depth may not always exist */
 	if (lock_depth_exists)
-		lock_depth = parse_common_lock_depth(pevent, data);
+		lock_depth = parse_common_lock_depth(tep, data);
 	else if (check_lock_depth) {
-		lock_depth = parse_common_lock_depth(pevent, data);
+		lock_depth = parse_common_lock_depth(tep, data);
 		if (lock_depth < 0)
 			check_lock_depth = 0;
 		else
@@ -5211,9 +5210,9 @@ void tep_data_latency_format(struct tep_handle *pevent,
 
 	/* migrate_disable may not always exist */
 	if (migrate_disable_exists)
-		migrate_disable = parse_common_migrate_disable(pevent, data);
+		migrate_disable = parse_common_migrate_disable(tep, data);
 	else if (check_migrate_disable) {
-		migrate_disable = parse_common_migrate_disable(pevent, data);
+		migrate_disable = parse_common_migrate_disable(tep, data);
 		if (migrate_disable < 0)
 			check_migrate_disable = 0;
 		else
@@ -5256,67 +5255,67 @@ void tep_data_latency_format(struct tep_handle *pevent,
 
 /**
  * tep_data_type - parse out the given event type
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @rec: the record to read from
  *
  * This returns the event id from the @rec.
  */
-int tep_data_type(struct tep_handle *pevent, struct tep_record *rec)
+int tep_data_type(struct tep_handle *tep, struct tep_record *rec)
 {
-	return trace_parse_common_type(pevent, rec->data);
+	return trace_parse_common_type(tep, rec->data);
 }
 
 /**
  * tep_data_pid - parse the PID from record
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @rec: the record to parse
  *
  * This returns the PID from a record.
  */
-int tep_data_pid(struct tep_handle *pevent, struct tep_record *rec)
+int tep_data_pid(struct tep_handle *tep, struct tep_record *rec)
 {
-	return parse_common_pid(pevent, rec->data);
+	return parse_common_pid(tep, rec->data);
 }
 
 /**
  * tep_data_preempt_count - parse the preempt count from the record
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @rec: the record to parse
  *
  * This returns the preempt count from a record.
  */
-int tep_data_preempt_count(struct tep_handle *pevent, struct tep_record *rec)
+int tep_data_preempt_count(struct tep_handle *tep, struct tep_record *rec)
 {
-	return parse_common_pc(pevent, rec->data);
+	return parse_common_pc(tep, rec->data);
 }
 
 /**
  * tep_data_flags - parse the latency flags from the record
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @rec: the record to parse
  *
  * This returns the latency flags from a record.
  *
  *  Use trace_flag_type enum for the flags (see event-parse.h).
  */
-int tep_data_flags(struct tep_handle *pevent, struct tep_record *rec)
+int tep_data_flags(struct tep_handle *tep, struct tep_record *rec)
 {
-	return parse_common_flags(pevent, rec->data);
+	return parse_common_flags(tep, rec->data);
 }
 
 /**
  * tep_data_comm_from_pid - return the command line from PID
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @pid: the PID of the task to search for
  *
  * This returns a pointer to the command line that has the given
  * @pid.
  */
-const char *tep_data_comm_from_pid(struct tep_handle *pevent, int pid)
+const char *tep_data_comm_from_pid(struct tep_handle *tep, int pid)
 {
 	const char *comm;
 
-	comm = find_cmdline(pevent, pid);
+	comm = find_cmdline(tep, pid);
 	return comm;
 }
 
@@ -5338,7 +5337,7 @@ pid_from_cmdlist(struct tep_handle *pevent, const char *comm, struct tep_cmdline
 
 /**
  * tep_data_pid_from_comm - return the pid from a given comm
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @comm: the cmdline to find the pid from
  * @next: the cmdline structure to find the next comm
  *
@@ -5349,7 +5348,7 @@ pid_from_cmdlist(struct tep_handle *pevent, const char *comm, struct tep_cmdline
  * next pid.
  * Also, it does a linear search, so it may be slow.
  */
-struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *pevent, const char *comm,
+struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *tep, const char *comm,
 					   struct tep_cmdline *next)
 {
 	struct tep_cmdline *cmdline;
@@ -5358,25 +5357,25 @@ struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *pevent, const char
 	 * If the cmdlines have not been converted yet, then use
 	 * the list.
 	 */
-	if (!pevent->cmdlines)
-		return pid_from_cmdlist(pevent, comm, next);
+	if (!tep->cmdlines)
+		return pid_from_cmdlist(tep, comm, next);
 
 	if (next) {
 		/*
 		 * The next pointer could have been still from
 		 * a previous call before cmdlines were created
 		 */
-		if (next < pevent->cmdlines ||
-		    next >= pevent->cmdlines + pevent->cmdline_count)
+		if (next < tep->cmdlines ||
+		    next >= tep->cmdlines + tep->cmdline_count)
 			next = NULL;
 		else
 			cmdline  = next++;
 	}
 
 	if (!next)
-		cmdline = pevent->cmdlines;
+		cmdline = tep->cmdlines;
 
-	while (cmdline < pevent->cmdlines + pevent->cmdline_count) {
+	while (cmdline < tep->cmdlines + tep->cmdline_count) {
 		if (strcmp(cmdline->comm, comm) == 0)
 			return cmdline;
 		cmdline++;
@@ -5386,12 +5385,13 @@ struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *pevent, const char
 
 /**
  * tep_cmdline_pid - return the pid associated to a given cmdline
+ * @tep: a handle to the trace event parser context
  * @cmdline: The cmdline structure to get the pid from
  *
  * Returns the pid for a give cmdline. If @cmdline is NULL, then
  * -1 is returned.
  */
-int tep_cmdline_pid(struct tep_handle *pevent, struct tep_cmdline *cmdline)
+int tep_cmdline_pid(struct tep_handle *tep, struct tep_cmdline *cmdline)
 {
 	struct cmdline_list *cmdlist = (struct cmdline_list *)cmdline;
 
@@ -5402,9 +5402,9 @@ int tep_cmdline_pid(struct tep_handle *pevent, struct tep_cmdline *cmdline)
 	 * If cmdlines have not been created yet, or cmdline is
 	 * not part of the array, then treat it as a cmdlist instead.
 	 */
-	if (!pevent->cmdlines ||
-	    cmdline < pevent->cmdlines ||
-	    cmdline >= pevent->cmdlines + pevent->cmdline_count)
+	if (!tep->cmdlines ||
+	    cmdline < tep->cmdlines ||
+	    cmdline >= tep->cmdlines + tep->cmdline_count)
 		return cmdlist->pid;
 
 	return cmdline->pid;
@@ -5455,14 +5455,14 @@ static bool is_timestamp_in_us(char *trace_clock, bool use_trace_clock)
 
 /**
  * tep_find_event_by_record - return the event from a given record
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @record: The record to get the event from
  *
  * Returns the associated event for a given record, or NULL if non is
  * is found.
  */
 struct tep_event *
-tep_find_event_by_record(struct tep_handle *pevent, struct tep_record *record)
+tep_find_event_by_record(struct tep_handle *tep, struct tep_record *record)
 {
 	int type;
 
@@ -5471,21 +5471,21 @@ tep_find_event_by_record(struct tep_handle *pevent, struct tep_record *record)
 		return NULL;
 	}
 
-	type = trace_parse_common_type(pevent, record->data);
+	type = trace_parse_common_type(tep, record->data);
 
-	return tep_find_event(pevent, type);
+	return tep_find_event(tep, type);
 }
 
 /**
  * tep_print_event_task - Write the event task comm, pid and CPU
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @s: the trace_seq to write to
  * @event: the handle to the record's event
  * @record: The record to get the event from
  *
  * Writes the tasks comm, pid and CPU to @s.
  */
-void tep_print_event_task(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event_task(struct tep_handle *tep, struct trace_seq *s,
 			  struct tep_event *event,
 			  struct tep_record *record)
 {
@@ -5493,27 +5493,26 @@ void tep_print_event_task(struct tep_handle *pevent, struct trace_seq *s,
 	const char *comm;
 	int pid;
 
-	pid = parse_common_pid(pevent, data);
-	comm = find_cmdline(pevent, pid);
+	pid = parse_common_pid(tep, data);
+	comm = find_cmdline(tep, pid);
 
-	if (pevent->latency_format) {
-		trace_seq_printf(s, "%8.8s-%-5d %3d",
-		       comm, pid, record->cpu);
-	} else
+	if (tep->latency_format)
+		trace_seq_printf(s, "%8.8s-%-5d %3d", comm, pid, record->cpu);
+	else
 		trace_seq_printf(s, "%16s-%-5d [%03d]", comm, pid, record->cpu);
 }
 
 /**
  * tep_print_event_time - Write the event timestamp
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @s: the trace_seq to write to
  * @event: the handle to the record's event
  * @record: The record to get the event from
- * @use_trace_clock: Set to parse according to the @pevent->trace_clock
+ * @use_trace_clock: Set to parse according to the @tep->trace_clock
  *
  * Writes the timestamp of the record into @s.
  */
-void tep_print_event_time(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event_time(struct tep_handle *tep, struct trace_seq *s,
 			  struct tep_event *event,
 			  struct tep_record *record,
 			  bool use_trace_clock)
@@ -5524,19 +5523,18 @@ void tep_print_event_time(struct tep_handle *pevent, struct trace_seq *s,
 	int p;
 	bool use_usec_format;
 
-	use_usec_format = is_timestamp_in_us(pevent->trace_clock,
-							use_trace_clock);
+	use_usec_format = is_timestamp_in_us(tep->trace_clock, use_trace_clock);
 	if (use_usec_format) {
 		secs = record->ts / NSEC_PER_SEC;
 		nsecs = record->ts - secs * NSEC_PER_SEC;
 	}
 
-	if (pevent->latency_format) {
-		tep_data_latency_format(pevent, s, record);
+	if (tep->latency_format) {
+		tep_data_latency_format(tep, s, record);
 	}
 
 	if (use_usec_format) {
-		if (pevent->flags & TEP_NSEC_OUTPUT) {
+		if (tep->flags & TEP_NSEC_OUTPUT) {
 			usecs = nsecs;
 			p = 9;
 		} else {
@@ -5556,14 +5554,14 @@ void tep_print_event_time(struct tep_handle *pevent, struct trace_seq *s,
 
 /**
  * tep_print_event_data - Write the event data section
- * @pevent: a handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @s: the trace_seq to write to
  * @event: the handle to the record's event
  * @record: The record to get the event from
  *
  * Writes the parsing of the record's data to @s.
  */
-void tep_print_event_data(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event_data(struct tep_handle *tep, struct trace_seq *s,
 			  struct tep_event *event,
 			  struct tep_record *record)
 {
@@ -5580,15 +5578,15 @@ void tep_print_event_data(struct tep_handle *pevent, struct trace_seq *s,
 	tep_event_info(s, event, record);
 }
 
-void tep_print_event(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event(struct tep_handle *tep, struct trace_seq *s,
 		     struct tep_record *record, bool use_trace_clock)
 {
 	struct tep_event *event;
 
-	event = tep_find_event_by_record(pevent, record);
+	event = tep_find_event_by_record(tep, record);
 	if (!event) {
 		int i;
-		int type = trace_parse_common_type(pevent, record->data);
+		int type = trace_parse_common_type(tep, record->data);
 
 		do_warning("ug! no event found for type %d", type);
 		trace_seq_printf(s, "[UNKNOWN TYPE %d]", type);
@@ -5598,9 +5596,9 @@ void tep_print_event(struct tep_handle *pevent, struct trace_seq *s,
 		return;
 	}
 
-	tep_print_event_task(pevent, s, event, record);
-	tep_print_event_time(pevent, s, event, record, use_trace_clock);
-	tep_print_event_data(pevent, s, event, record);
+	tep_print_event_task(tep, s, event, record);
+	tep_print_event_time(tep, s, event, record, use_trace_clock);
+	tep_print_event_data(tep, s, event, record);
 }
 
 static int events_id_cmp(const void *a, const void *b)
@@ -6017,7 +6015,7 @@ static void parse_header_field(const char *field,
 
 /**
  * tep_parse_header_page - parse the data stored in the header page
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @buf: the buffer storing the header page format string
  * @size: the size of @buf
  * @long_size: the long size to use if there is no header
@@ -6027,7 +6025,7 @@ static void parse_header_field(const char *field,
  *
  * /sys/kernel/debug/tracing/events/header_page
  */
-int tep_parse_header_page(struct tep_handle *pevent, char *buf, unsigned long size,
+int tep_parse_header_page(struct tep_handle *tep, char *buf, unsigned long size,
 			  int long_size)
 {
 	int ignore;
@@ -6037,22 +6035,22 @@ int tep_parse_header_page(struct tep_handle *pevent, char *buf, unsigned long si
 		 * Old kernels did not have header page info.
 		 * Sorry but we just use what we find here in user space.
 		 */
-		pevent->header_page_ts_size = sizeof(long long);
-		pevent->header_page_size_size = long_size;
-		pevent->header_page_data_offset = sizeof(long long) + long_size;
-		pevent->old_format = 1;
+		tep->header_page_ts_size = sizeof(long long);
+		tep->header_page_size_size = long_size;
+		tep->header_page_data_offset = sizeof(long long) + long_size;
+		tep->old_format = 1;
 		return -1;
 	}
 	init_input_buf(buf, size);
 
-	parse_header_field("timestamp", &pevent->header_page_ts_offset,
-			   &pevent->header_page_ts_size, 1);
-	parse_header_field("commit", &pevent->header_page_size_offset,
-			   &pevent->header_page_size_size, 1);
-	parse_header_field("overwrite", &pevent->header_page_overwrite,
+	parse_header_field("timestamp", &tep->header_page_ts_offset,
+			   &tep->header_page_ts_size, 1);
+	parse_header_field("commit", &tep->header_page_size_offset,
+			   &tep->header_page_size_size, 1);
+	parse_header_field("overwrite", &tep->header_page_overwrite,
 			   &ignore, 0);
-	parse_header_field("data", &pevent->header_page_data_offset,
-			   &pevent->header_page_data_size, 1);
+	parse_header_field("data", &tep->header_page_data_offset,
+			   &tep->header_page_data_size, 1);
 
 	return 0;
 }
@@ -6258,7 +6256,7 @@ event_add_failed:
 
 /**
  * tep_parse_format - parse the event format
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @eventp: returned format
  * @buf: the buffer storing the event format string
  * @size: the size of @buf
@@ -6271,17 +6269,17 @@ event_add_failed:
  *
  * /sys/kernel/debug/tracing/events/.../.../format
  */
-enum tep_errno tep_parse_format(struct tep_handle *pevent,
+enum tep_errno tep_parse_format(struct tep_handle *tep,
 				struct tep_event **eventp,
 				const char *buf,
 				unsigned long size, const char *sys)
 {
-	return __parse_event(pevent, eventp, buf, size, sys);
+	return __parse_event(tep, eventp, buf, size, sys);
 }
 
 /**
  * tep_parse_event - parse the event format
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @buf: the buffer storing the event format string
  * @size: the size of @buf
  * @sys: the system the event belongs to
@@ -6293,11 +6291,11 @@ enum tep_errno tep_parse_format(struct tep_handle *pevent,
  *
  * /sys/kernel/debug/tracing/events/.../.../format
  */
-enum tep_errno tep_parse_event(struct tep_handle *pevent, const char *buf,
+enum tep_errno tep_parse_event(struct tep_handle *tep, const char *buf,
 			       unsigned long size, const char *sys)
 {
 	struct tep_event *event = NULL;
-	return __parse_event(pevent, &event, buf, size, sys);
+	return __parse_event(tep, &event, buf, size, sys);
 }
 
 int get_field_val(struct trace_seq *s, struct tep_format_field *field,
@@ -6537,7 +6535,7 @@ static void free_func_handle(struct tep_function_handler *func)
 
 /**
  * tep_register_print_function - register a helper function
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @func: the function to process the helper function
  * @ret_type: the return type of the helper function
  * @name: the name of the helper function
@@ -6550,7 +6548,7 @@ static void free_func_handle(struct tep_function_handler *func)
  * The @parameters is a variable list of tep_func_arg_type enums that
  * must end with TEP_FUNC_ARG_VOID.
  */
-int tep_register_print_function(struct tep_handle *pevent,
+int tep_register_print_function(struct tep_handle *tep,
 				tep_func_handler func,
 				enum tep_func_arg_type ret_type,
 				char *name, ...)
@@ -6562,7 +6560,7 @@ int tep_register_print_function(struct tep_handle *pevent,
 	va_list ap;
 	int ret;
 
-	func_handle = find_func_handler(pevent, name);
+	func_handle = find_func_handler(tep, name);
 	if (func_handle) {
 		/*
 		 * This is most like caused by the users own
@@ -6570,7 +6568,7 @@ int tep_register_print_function(struct tep_handle *pevent,
 		 * system defaults.
 		 */
 		pr_stat("override of function helper '%s'", name);
-		remove_func_handler(pevent, name);
+		remove_func_handler(tep, name);
 	}
 
 	func_handle = calloc(1, sizeof(*func_handle));
@@ -6617,8 +6615,8 @@ int tep_register_print_function(struct tep_handle *pevent,
 	}
 	va_end(ap);
 
-	func_handle->next = pevent->func_handlers;
-	pevent->func_handlers = func_handle;
+	func_handle->next = tep->func_handlers;
+	tep->func_handlers = func_handle;
 
 	return 0;
  out_free:
@@ -6629,7 +6627,7 @@ int tep_register_print_function(struct tep_handle *pevent,
 
 /**
  * tep_unregister_print_function - unregister a helper function
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @func: the function to process the helper function
  * @name: the name of the helper function
  *
@@ -6637,14 +6635,14 @@ int tep_register_print_function(struct tep_handle *pevent,
  *
  * Returns 0 if the handler was removed successully, -1 otherwise.
  */
-int tep_unregister_print_function(struct tep_handle *pevent,
+int tep_unregister_print_function(struct tep_handle *tep,
 				  tep_func_handler func, char *name)
 {
 	struct tep_function_handler *func_handle;
 
-	func_handle = find_func_handler(pevent, name);
+	func_handle = find_func_handler(tep, name);
 	if (func_handle && func_handle->func == func) {
-		remove_func_handler(pevent, name);
+		remove_func_handler(tep, name);
 		return 0;
 	}
 	return -1;
@@ -6675,7 +6673,7 @@ static struct tep_event *search_event(struct tep_handle *pevent, int id,
 
 /**
  * tep_register_event_handler - register a way to parse an event
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @id: the id of the event to register
  * @sys_name: the system name the event belongs to
  * @event_name: the name of the event
@@ -6696,14 +6694,14 @@ static struct tep_event *search_event(struct tep_handle *pevent, int id,
  *  negative TEP_ERRNO_... in case of an error
  *
  */
-int tep_register_event_handler(struct tep_handle *pevent, int id,
+int tep_register_event_handler(struct tep_handle *tep, int id,
 			       const char *sys_name, const char *event_name,
 			       tep_event_handler_func func, void *context)
 {
 	struct tep_event *event;
 	struct event_handler *handle;
 
-	event = search_event(pevent, id, sys_name, event_name);
+	event = search_event(tep, id, sys_name, event_name);
 	if (event == NULL)
 		goto not_found;
 
@@ -6738,8 +6736,8 @@ int tep_register_event_handler(struct tep_handle *pevent, int id,
 	}
 
 	handle->func = func;
-	handle->next = pevent->handlers;
-	pevent->handlers = handle;
+	handle->next = tep->handlers;
+	tep->handlers = handle;
 	handle->context = context;
 
 	return TEP_REGISTER_SUCCESS;
@@ -6766,7 +6764,7 @@ static int handle_matches(struct event_handler *handler, int id,
 
 /**
  * tep_unregister_event_handler - unregister an existing event handler
- * @pevent: the handle to the pevent
+ * @tep: a handle to the trace event parser context
  * @id: the id of the event to unregister
  * @sys_name: the system name the handler belongs to
  * @event_name: the name of the event handler
@@ -6780,7 +6778,7 @@ static int handle_matches(struct event_handler *handler, int id,
  *
  * Returns 0 if handler was removed successfully, -1 if event was not found.
  */
-int tep_unregister_event_handler(struct tep_handle *pevent, int id,
+int tep_unregister_event_handler(struct tep_handle *tep, int id,
 				 const char *sys_name, const char *event_name,
 				 tep_event_handler_func func, void *context)
 {
@@ -6788,7 +6786,7 @@ int tep_unregister_event_handler(struct tep_handle *pevent, int id,
 	struct event_handler *handle;
 	struct event_handler **next;
 
-	event = search_event(pevent, id, sys_name, event_name);
+	event = search_event(tep, id, sys_name, event_name);
 	if (event == NULL)
 		goto not_found;
 
@@ -6802,7 +6800,7 @@ int tep_unregister_event_handler(struct tep_handle *pevent, int id,
 	}
 
 not_found:
-	for (next = &pevent->handlers; *next; next = &(*next)->next) {
+	for (next = &tep->handlers; *next; next = &(*next)->next) {
 		handle = *next;
 		if (handle_matches(handle, id, sys_name, event_name,
 				   func, context))
@@ -6819,7 +6817,7 @@ not_found:
 }
 
 /**
- * tep_alloc - create a pevent handle
+ * tep_alloc - create a tep handle
  */
 struct tep_handle *tep_alloc(void)
 {
@@ -6833,9 +6831,9 @@ struct tep_handle *tep_alloc(void)
 	return pevent;
 }
 
-void tep_ref(struct tep_handle *pevent)
+void tep_ref(struct tep_handle *tep)
 {
-	pevent->ref_count++;
+	tep->ref_count++;
 }
 
 int tep_get_ref(struct tep_handle *tep)
@@ -6885,10 +6883,10 @@ void tep_free_event(struct tep_event *event)
 }
 
 /**
- * tep_free - free a pevent handle
- * @pevent: the pevent handle to free
+ * tep_free - free a tep handle
+ * @tep: the tep handle to free
  */
-void tep_free(struct tep_handle *pevent)
+void tep_free(struct tep_handle *tep)
 {
 	struct cmdline_list *cmdlist, *cmdnext;
 	struct func_list *funclist, *funcnext;
@@ -6897,21 +6895,21 @@ void tep_free(struct tep_handle *pevent)
 	struct event_handler *handle;
 	int i;
 
-	if (!pevent)
+	if (!tep)
 		return;
 
-	cmdlist = pevent->cmdlist;
-	funclist = pevent->funclist;
-	printklist = pevent->printklist;
+	cmdlist = tep->cmdlist;
+	funclist = tep->funclist;
+	printklist = tep->printklist;
 
-	pevent->ref_count--;
-	if (pevent->ref_count)
+	tep->ref_count--;
+	if (tep->ref_count)
 		return;
 
-	if (pevent->cmdlines) {
-		for (i = 0; i < pevent->cmdline_count; i++)
-			free(pevent->cmdlines[i].comm);
-		free(pevent->cmdlines);
+	if (tep->cmdlines) {
+		for (i = 0; i < tep->cmdline_count; i++)
+			free(tep->cmdlines[i].comm);
+		free(tep->cmdlines);
 	}
 
 	while (cmdlist) {
@@ -6921,12 +6919,12 @@ void tep_free(struct tep_handle *pevent)
 		cmdlist = cmdnext;
 	}
 
-	if (pevent->func_map) {
-		for (i = 0; i < (int)pevent->func_count; i++) {
-			free(pevent->func_map[i].func);
-			free(pevent->func_map[i].mod);
+	if (tep->func_map) {
+		for (i = 0; i < (int)tep->func_count; i++) {
+			free(tep->func_map[i].func);
+			free(tep->func_map[i].mod);
 		}
-		free(pevent->func_map);
+		free(tep->func_map);
 	}
 
 	while (funclist) {
@@ -6937,16 +6935,16 @@ void tep_free(struct tep_handle *pevent)
 		funclist = funcnext;
 	}
 
-	while (pevent->func_handlers) {
-		func_handler = pevent->func_handlers;
-		pevent->func_handlers = func_handler->next;
+	while (tep->func_handlers) {
+		func_handler = tep->func_handlers;
+		tep->func_handlers = func_handler->next;
 		free_func_handle(func_handler);
 	}
 
-	if (pevent->printk_map) {
-		for (i = 0; i < (int)pevent->printk_count; i++)
-			free(pevent->printk_map[i].printk);
-		free(pevent->printk_map);
+	if (tep->printk_map) {
+		for (i = 0; i < (int)tep->printk_count; i++)
+			free(tep->printk_map[i].printk);
+		free(tep->printk_map);
 	}
 
 	while (printklist) {
@@ -6956,24 +6954,24 @@ void tep_free(struct tep_handle *pevent)
 		printklist = printknext;
 	}
 
-	for (i = 0; i < pevent->nr_events; i++)
-		tep_free_event(pevent->events[i]);
+	for (i = 0; i < tep->nr_events; i++)
+		tep_free_event(tep->events[i]);
 
-	while (pevent->handlers) {
-		handle = pevent->handlers;
-		pevent->handlers = handle->next;
+	while (tep->handlers) {
+		handle = tep->handlers;
+		tep->handlers = handle->next;
 		free_handler(handle);
 	}
 
-	free(pevent->trace_clock);
-	free(pevent->events);
-	free(pevent->sort_events);
-	free(pevent->func_resolver);
+	free(tep->trace_clock);
+	free(tep->events);
+	free(tep->sort_events);
+	free(tep->func_resolver);
 
-	free(pevent);
+	free(tep);
 }
 
-void tep_unref(struct tep_handle *pevent)
+void tep_unref(struct tep_handle *tep)
 {
-	tep_free(pevent);
+	tep_free(tep);
 }
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index d473dc557978..2720a30ef86b 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -64,8 +64,8 @@ typedef int (*tep_event_handler_func)(struct trace_seq *s,
 				      struct tep_event *event,
 				      void *context);
 
-typedef int (*tep_plugin_load_func)(struct tep_handle *pevent);
-typedef int (*tep_plugin_unload_func)(struct tep_handle *pevent);
+typedef int (*tep_plugin_load_func)(struct tep_handle *tep);
+typedef int (*tep_plugin_unload_func)(struct tep_handle *tep);
 
 struct tep_plugin_option {
 	struct tep_plugin_option	*next;
@@ -85,12 +85,12 @@ struct tep_plugin_option {
  * TEP_PLUGIN_LOADER:  (required)
  *   The function name to initialized the plugin.
  *
- *   int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+ *   int TEP_PLUGIN_LOADER(struct tep_handle *tep)
  *
  * TEP_PLUGIN_UNLOADER:  (optional)
  *   The function called just before unloading
  *
- *   int TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+ *   int TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
  *
  * TEP_PLUGIN_OPTIONS:  (optional)
  *   Plugin options that can be set before loading
@@ -393,9 +393,9 @@ struct tep_plugin_list;
 
 #define INVALID_PLUGIN_LIST_OPTION	((char **)((unsigned long)-1))
 
-struct tep_plugin_list *tep_load_plugins(struct tep_handle *pevent);
+struct tep_plugin_list *tep_load_plugins(struct tep_handle *tep);
 void tep_unload_plugins(struct tep_plugin_list *plugin_list,
-			struct tep_handle *pevent);
+			struct tep_handle *tep);
 char **tep_plugin_list_options(void);
 void tep_plugin_free_options_list(char **list);
 int tep_plugin_add_options(const char *name,
@@ -410,7 +410,7 @@ typedef char *(tep_func_resolver_t)(void *priv,
 				    unsigned long long *addrp, char **modp);
 void tep_set_flag(struct tep_handle *tep, int flag);
 void tep_clear_flag(struct tep_handle *tep, enum tep_flag flag);
-bool tep_check_flags(struct tep_handle *tep, enum tep_flag flags);
+bool tep_test_flag(struct tep_handle *tep, enum tep_flag flags);
 
 static inline int tep_is_bigendian(void)
 {
@@ -430,37 +430,37 @@ enum trace_flag_type {
 	TRACE_FLAG_SOFTIRQ		= 0x10,
 };
 
-int tep_set_function_resolver(struct tep_handle *pevent,
+int tep_set_function_resolver(struct tep_handle *tep,
 			      tep_func_resolver_t *func, void *priv);
-void tep_reset_function_resolver(struct tep_handle *pevent);
-int tep_register_comm(struct tep_handle *pevent, const char *comm, int pid);
-int tep_override_comm(struct tep_handle *pevent, const char *comm, int pid);
-int tep_register_trace_clock(struct tep_handle *pevent, const char *trace_clock);
-int tep_register_function(struct tep_handle *pevent, char *name,
+void tep_reset_function_resolver(struct tep_handle *tep);
+int tep_register_comm(struct tep_handle *tep, const char *comm, int pid);
+int tep_override_comm(struct tep_handle *tep, const char *comm, int pid);
+int tep_register_trace_clock(struct tep_handle *tep, const char *trace_clock);
+int tep_register_function(struct tep_handle *tep, char *name,
 			  unsigned long long addr, char *mod);
-int tep_register_print_string(struct tep_handle *pevent, const char *fmt,
+int tep_register_print_string(struct tep_handle *tep, const char *fmt,
 			      unsigned long long addr);
-bool tep_is_pid_registered(struct tep_handle *pevent, int pid);
+bool tep_is_pid_registered(struct tep_handle *tep, int pid);
 
-void tep_print_event_task(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event_task(struct tep_handle *tep, struct trace_seq *s,
 			  struct tep_event *event,
 			  struct tep_record *record);
-void tep_print_event_time(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event_time(struct tep_handle *tep, struct trace_seq *s,
 			  struct tep_event *event,
 			  struct tep_record *record,
 			  bool use_trace_clock);
-void tep_print_event_data(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event_data(struct tep_handle *tep, struct trace_seq *s,
 			  struct tep_event *event,
 			  struct tep_record *record);
-void tep_print_event(struct tep_handle *pevent, struct trace_seq *s,
+void tep_print_event(struct tep_handle *tep, struct trace_seq *s,
 		     struct tep_record *record, bool use_trace_clock);
 
-int tep_parse_header_page(struct tep_handle *pevent, char *buf, unsigned long size,
+int tep_parse_header_page(struct tep_handle *tep, char *buf, unsigned long size,
 			  int long_size);
 
-enum tep_errno tep_parse_event(struct tep_handle *pevent, const char *buf,
+enum tep_errno tep_parse_event(struct tep_handle *tep, const char *buf,
 			       unsigned long size, const char *sys);
-enum tep_errno tep_parse_format(struct tep_handle *pevent,
+enum tep_errno tep_parse_format(struct tep_handle *tep,
 				struct tep_event **eventp,
 				const char *buf,
 				unsigned long size, const char *sys);
@@ -492,50 +492,50 @@ enum tep_reg_handler {
 	TEP_REGISTER_SUCCESS_OVERWRITE,
 };
 
-int tep_register_event_handler(struct tep_handle *pevent, int id,
+int tep_register_event_handler(struct tep_handle *tep, int id,
 			       const char *sys_name, const char *event_name,
 			       tep_event_handler_func func, void *context);
-int tep_unregister_event_handler(struct tep_handle *pevent, int id,
+int tep_unregister_event_handler(struct tep_handle *tep, int id,
 				 const char *sys_name, const char *event_name,
 				 tep_event_handler_func func, void *context);
-int tep_register_print_function(struct tep_handle *pevent,
+int tep_register_print_function(struct tep_handle *tep,
 				tep_func_handler func,
 				enum tep_func_arg_type ret_type,
 				char *name, ...);
-int tep_unregister_print_function(struct tep_handle *pevent,
+int tep_unregister_print_function(struct tep_handle *tep,
 				  tep_func_handler func, char *name);
 
 struct tep_format_field *tep_find_common_field(struct tep_event *event, const char *name);
 struct tep_format_field *tep_find_field(struct tep_event *event, const char *name);
 struct tep_format_field *tep_find_any_field(struct tep_event *event, const char *name);
 
-const char *tep_find_function(struct tep_handle *pevent, unsigned long long addr);
+const char *tep_find_function(struct tep_handle *tep, unsigned long long addr);
 unsigned long long
-tep_find_function_address(struct tep_handle *pevent, unsigned long long addr);
-unsigned long long tep_read_number(struct tep_handle *pevent, const void *ptr, int size);
+tep_find_function_address(struct tep_handle *tep, unsigned long long addr);
+unsigned long long tep_read_number(struct tep_handle *tep, const void *ptr, int size);
 int tep_read_number_field(struct tep_format_field *field, const void *data,
 			  unsigned long long *value);
 
 struct tep_event *tep_get_first_event(struct tep_handle *tep);
 int tep_get_events_count(struct tep_handle *tep);
-struct tep_event *tep_find_event(struct tep_handle *pevent, int id);
+struct tep_event *tep_find_event(struct tep_handle *tep, int id);
 
 struct tep_event *
-tep_find_event_by_name(struct tep_handle *pevent, const char *sys, const char *name);
+tep_find_event_by_name(struct tep_handle *tep, const char *sys, const char *name);
 struct tep_event *
-tep_find_event_by_record(struct tep_handle *pevent, struct tep_record *record);
+tep_find_event_by_record(struct tep_handle *tep, struct tep_record *record);
 
-void tep_data_latency_format(struct tep_handle *pevent,
+void tep_data_latency_format(struct tep_handle *tep,
 			     struct trace_seq *s, struct tep_record *record);
-int tep_data_type(struct tep_handle *pevent, struct tep_record *rec);
-int tep_data_pid(struct tep_handle *pevent, struct tep_record *rec);
-int tep_data_preempt_count(struct tep_handle *pevent, struct tep_record *rec);
-int tep_data_flags(struct tep_handle *pevent, struct tep_record *rec);
-const char *tep_data_comm_from_pid(struct tep_handle *pevent, int pid);
+int tep_data_type(struct tep_handle *tep, struct tep_record *rec);
+int tep_data_pid(struct tep_handle *tep, struct tep_record *rec);
+int tep_data_preempt_count(struct tep_handle *tep, struct tep_record *rec);
+int tep_data_flags(struct tep_handle *tep, struct tep_record *rec);
+const char *tep_data_comm_from_pid(struct tep_handle *tep, int pid);
 struct tep_cmdline;
-struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *pevent, const char *comm,
+struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *tep, const char *comm,
 					   struct tep_cmdline *next);
-int tep_cmdline_pid(struct tep_handle *pevent, struct tep_cmdline *cmdline);
+int tep_cmdline_pid(struct tep_handle *tep, struct tep_cmdline *cmdline);
 
 void tep_print_field(struct trace_seq *s, void *data,
 		     struct tep_format_field *field);
@@ -543,11 +543,10 @@ void tep_print_fields(struct trace_seq *s, void *data,
 		      int size __maybe_unused, struct tep_event *event);
 void tep_event_info(struct trace_seq *s, struct tep_event *event,
 		    struct tep_record *record);
-int tep_strerror(struct tep_handle *pevent, enum tep_errno errnum,
+int tep_strerror(struct tep_handle *tep, enum tep_errno errnum,
 		 char *buf, size_t buflen);
 
-struct tep_event **tep_list_events(struct tep_handle *tep,
-				   enum tep_event_sort_type);
+struct tep_event **tep_list_events(struct tep_handle *tep, enum tep_event_sort_type);
 struct tep_event **tep_list_events_copy(struct tep_handle *tep,
 					enum tep_event_sort_type);
 struct tep_format_field **tep_event_common_fields(struct tep_event *event);
@@ -557,28 +556,28 @@ enum tep_endian {
         TEP_LITTLE_ENDIAN = 0,
         TEP_BIG_ENDIAN
 };
-int tep_get_cpus(struct tep_handle *pevent);
-void tep_set_cpus(struct tep_handle *pevent, int cpus);
-int tep_get_long_size(struct tep_handle *pevent);
-void tep_set_long_size(struct tep_handle *pevent, int long_size);
-int tep_get_page_size(struct tep_handle *pevent);
-void tep_set_page_size(struct tep_handle *pevent, int _page_size);
-bool tep_is_file_bigendian(struct tep_handle *pevent);
-void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian);
-bool tep_is_local_bigendian(struct tep_handle *pevent);
-void tep_set_local_bigendian(struct tep_handle *pevent, enum tep_endian endian);
-bool tep_is_latency_format(struct tep_handle *pevent);
-void tep_set_latency_format(struct tep_handle *pevent, int lat);
-int tep_get_header_page_size(struct tep_handle *pevent);
+int tep_get_cpus(struct tep_handle *tep);
+void tep_set_cpus(struct tep_handle *tep, int cpus);
+int tep_get_long_size(struct tep_handle *tep);
+void tep_set_long_size(struct tep_handle *tep, int long_size);
+int tep_get_page_size(struct tep_handle *tep);
+void tep_set_page_size(struct tep_handle *tep, int _page_size);
+bool tep_is_file_bigendian(struct tep_handle *tep);
+void tep_set_file_bigendian(struct tep_handle *tep, enum tep_endian endian);
+bool tep_is_local_bigendian(struct tep_handle *tep);
+void tep_set_local_bigendian(struct tep_handle *tep, enum tep_endian endian);
+bool tep_is_latency_format(struct tep_handle *tep);
+void tep_set_latency_format(struct tep_handle *tep, int lat);
+int tep_get_header_page_size(struct tep_handle *tep);
 int tep_get_header_timestamp_size(struct tep_handle *tep);
 bool tep_is_old_format(struct tep_handle *tep);
 void tep_set_print_raw(struct tep_handle *tep, int print_raw);
 void tep_set_test_filters(struct tep_handle *tep, int test_filters);
 
 struct tep_handle *tep_alloc(void);
-void tep_free(struct tep_handle *pevent);
-void tep_ref(struct tep_handle *pevent);
-void tep_unref(struct tep_handle *pevent);
+void tep_free(struct tep_handle *tep);
+void tep_ref(struct tep_handle *tep);
+void tep_unref(struct tep_handle *tep);
 int tep_get_ref(struct tep_handle *tep);
 
 /* access to the internal parser */
@@ -590,8 +589,8 @@ const char *tep_get_input_buf(void);
 unsigned long long tep_get_input_buf_ptr(void);
 
 /* for debugging */
-void tep_print_funcs(struct tep_handle *pevent);
-void tep_print_printk(struct tep_handle *pevent);
+void tep_print_funcs(struct tep_handle *tep);
+void tep_print_printk(struct tep_handle *tep);
 
 /* ----------------------- filtering ----------------------- */
 
@@ -724,7 +723,7 @@ struct tep_event_filter {
 	char			error_buffer[TEP_FILTER_ERROR_BUFSZ];
 };
 
-struct tep_event_filter *tep_filter_alloc(struct tep_handle *pevent);
+struct tep_event_filter *tep_filter_alloc(struct tep_handle *tep);
 
 /* for backward compatibility */
 #define FILTER_NONE		TEP_ERRNO__NO_FILTER
diff --git a/tools/lib/traceevent/event-plugin.c b/tools/lib/traceevent/event-plugin.c
index e74f16c88398..d0488de0174a 100644
--- a/tools/lib/traceevent/event-plugin.c
+++ b/tools/lib/traceevent/event-plugin.c
@@ -419,16 +419,16 @@ load_plugins(struct tep_handle *pevent, const char *suffix,
 }
 
 struct tep_plugin_list*
-tep_load_plugins(struct tep_handle *pevent)
+tep_load_plugins(struct tep_handle *tep)
 {
 	struct tep_plugin_list *list = NULL;
 
-	load_plugins(pevent, ".so", load_plugin, &list);
+	load_plugins(tep, ".so", load_plugin, &list);
 	return list;
 }
 
 void
-tep_unload_plugins(struct tep_plugin_list *plugin_list, struct tep_handle *pevent)
+tep_unload_plugins(struct tep_plugin_list *plugin_list, struct tep_handle *tep)
 {
 	tep_plugin_unload_func func;
 	struct tep_plugin_list *list;
@@ -438,7 +438,7 @@ tep_unload_plugins(struct tep_plugin_list *plugin_list, struct tep_handle *peven
 		plugin_list = list->next;
 		func = dlsym(list->handle, TEP_PLUGIN_UNLOADER_NAME);
 		if (func)
-			func(pevent);
+			func(tep);
 		dlclose(list->handle);
 		free(list->name);
 		free(list);
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index 3320c0a0e343..5d8f9d9bc253 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -164,9 +164,9 @@ add_filter_type(struct tep_event_filter *filter, int id)
 
 /**
  * tep_filter_alloc - create a new event filter
- * @pevent: The pevent that this filter is associated with
+ * @tep: The tep that this filter is associated with
  */
-struct tep_event_filter *tep_filter_alloc(struct tep_handle *pevent)
+struct tep_event_filter *tep_filter_alloc(struct tep_handle *tep)
 {
 	struct tep_event_filter *filter;
 
@@ -175,8 +175,8 @@ struct tep_event_filter *tep_filter_alloc(struct tep_handle *pevent)
 		return NULL;
 
 	memset(filter, 0, sizeof(*filter));
-	filter->pevent = pevent;
-	tep_ref(pevent);
+	filter->pevent = tep;
+	tep_ref(tep);
 
 	return filter;
 }
diff --git a/tools/lib/traceevent/plugin_cfg80211.c b/tools/lib/traceevent/plugin_cfg80211.c
index a51b366f47da..3d43b56a6c98 100644
--- a/tools/lib/traceevent/plugin_cfg80211.c
+++ b/tools/lib/traceevent/plugin_cfg80211.c
@@ -25,9 +25,9 @@ process___le16_to_cpup(struct trace_seq *s, unsigned long long *args)
 	return val ? (long long) le16toh(*val) : 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_print_function(pevent,
+	tep_register_print_function(tep,
 				    process___le16_to_cpup,
 				    TEP_FUNC_ARG_INT,
 				    "__le16_to_cpup",
@@ -36,8 +36,8 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_print_function(pevent, process___le16_to_cpup,
+	tep_unregister_print_function(tep, process___le16_to_cpup,
 				      "__le16_to_cpup");
 }
diff --git a/tools/lib/traceevent/plugin_function.c b/tools/lib/traceevent/plugin_function.c
index a73eca34a8f9..e93f33bd705f 100644
--- a/tools/lib/traceevent/plugin_function.c
+++ b/tools/lib/traceevent/plugin_function.c
@@ -164,9 +164,9 @@ static int function_handler(struct trace_seq *s, struct tep_record *record,
 	return 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_event_handler(pevent, -1, "ftrace", "function",
+	tep_register_event_handler(tep, -1, "ftrace", "function",
 				   function_handler, NULL);
 
 	tep_plugin_add_options("ftrace", plugin_options);
@@ -174,11 +174,11 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
 	int i, x;
 
-	tep_unregister_event_handler(pevent, -1, "ftrace", "function",
+	tep_unregister_event_handler(tep, -1, "ftrace", "function",
 				     function_handler, NULL);
 
 	for (i = 0; i <= cpus; i++) {
diff --git a/tools/lib/traceevent/plugin_hrtimer.c b/tools/lib/traceevent/plugin_hrtimer.c
index 5db5e401275f..bb434e0ed03a 100644
--- a/tools/lib/traceevent/plugin_hrtimer.c
+++ b/tools/lib/traceevent/plugin_hrtimer.c
@@ -67,23 +67,23 @@ static int timer_start_handler(struct trace_seq *s,
 	return 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_event_handler(pevent, -1,
+	tep_register_event_handler(tep, -1,
 				   "timer", "hrtimer_expire_entry",
 				   timer_expire_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "timer", "hrtimer_start",
+	tep_register_event_handler(tep, -1, "timer", "hrtimer_start",
 				   timer_start_handler, NULL);
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_event_handler(pevent, -1,
+	tep_unregister_event_handler(tep, -1,
 				     "timer", "hrtimer_expire_entry",
 				     timer_expire_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "timer", "hrtimer_start",
+	tep_unregister_event_handler(tep, -1, "timer", "hrtimer_start",
 				     timer_start_handler, NULL);
 }
diff --git a/tools/lib/traceevent/plugin_jbd2.c b/tools/lib/traceevent/plugin_jbd2.c
index a5e34135dd6a..04fc125f38cb 100644
--- a/tools/lib/traceevent/plugin_jbd2.c
+++ b/tools/lib/traceevent/plugin_jbd2.c
@@ -48,16 +48,16 @@ process_jiffies_to_msecs(struct trace_seq *s, unsigned long long *args)
 	return jiffies;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_print_function(pevent,
+	tep_register_print_function(tep,
 				    process_jbd2_dev_to_name,
 				    TEP_FUNC_ARG_STRING,
 				    "jbd2_dev_to_name",
 				    TEP_FUNC_ARG_INT,
 				    TEP_FUNC_ARG_VOID);
 
-	tep_register_print_function(pevent,
+	tep_register_print_function(tep,
 				    process_jiffies_to_msecs,
 				    TEP_FUNC_ARG_LONG,
 				    "jiffies_to_msecs",
@@ -66,11 +66,11 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_print_function(pevent, process_jbd2_dev_to_name,
+	tep_unregister_print_function(tep, process_jbd2_dev_to_name,
 				      "jbd2_dev_to_name");
 
-	tep_unregister_print_function(pevent, process_jiffies_to_msecs,
+	tep_unregister_print_function(tep, process_jiffies_to_msecs,
 				      "jiffies_to_msecs");
 }
diff --git a/tools/lib/traceevent/plugin_kmem.c b/tools/lib/traceevent/plugin_kmem.c
index 0e3c601f9ed1..c09bafdd8377 100644
--- a/tools/lib/traceevent/plugin_kmem.c
+++ b/tools/lib/traceevent/plugin_kmem.c
@@ -49,47 +49,47 @@ static int call_site_handler(struct trace_seq *s, struct tep_record *record,
 	return 1;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_event_handler(pevent, -1, "kmem", "kfree",
+	tep_register_event_handler(tep, -1, "kmem", "kfree",
 				   call_site_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kmem", "kmalloc",
+	tep_register_event_handler(tep, -1, "kmem", "kmalloc",
 				   call_site_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kmem", "kmalloc_node",
+	tep_register_event_handler(tep, -1, "kmem", "kmalloc_node",
 				   call_site_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kmem", "kmem_cache_alloc",
+	tep_register_event_handler(tep, -1, "kmem", "kmem_cache_alloc",
 				   call_site_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kmem",
+	tep_register_event_handler(tep, -1, "kmem",
 				   "kmem_cache_alloc_node",
 				   call_site_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kmem", "kmem_cache_free",
+	tep_register_event_handler(tep, -1, "kmem", "kmem_cache_free",
 				   call_site_handler, NULL);
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_event_handler(pevent, -1, "kmem", "kfree",
+	tep_unregister_event_handler(tep, -1, "kmem", "kfree",
 				     call_site_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kmem", "kmalloc",
+	tep_unregister_event_handler(tep, -1, "kmem", "kmalloc",
 				     call_site_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kmem", "kmalloc_node",
+	tep_unregister_event_handler(tep, -1, "kmem", "kmalloc_node",
 				     call_site_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kmem", "kmem_cache_alloc",
+	tep_unregister_event_handler(tep, -1, "kmem", "kmem_cache_alloc",
 				     call_site_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kmem",
+	tep_unregister_event_handler(tep, -1, "kmem",
 				     "kmem_cache_alloc_node",
 				     call_site_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kmem", "kmem_cache_free",
+	tep_unregister_event_handler(tep, -1, "kmem", "kmem_cache_free",
 				     call_site_handler, NULL);
 }
diff --git a/tools/lib/traceevent/plugin_kvm.c b/tools/lib/traceevent/plugin_kvm.c
index 688e5d97d7a7..472298c2b531 100644
--- a/tools/lib/traceevent/plugin_kvm.c
+++ b/tools/lib/traceevent/plugin_kvm.c
@@ -445,40 +445,40 @@ process_is_writable_pte(struct trace_seq *s, unsigned long long *args)
 	return pte & PT_WRITABLE_MASK;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
 	init_disassembler();
 
-	tep_register_event_handler(pevent, -1, "kvm", "kvm_exit",
+	tep_register_event_handler(tep, -1, "kvm", "kvm_exit",
 				   kvm_exit_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvm", "kvm_emulate_insn",
+	tep_register_event_handler(tep, -1, "kvm", "kvm_emulate_insn",
 				   kvm_emulate_insn_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvm", "kvm_nested_vmexit",
+	tep_register_event_handler(tep, -1, "kvm", "kvm_nested_vmexit",
 				   kvm_nested_vmexit_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvm", "kvm_nested_vmexit_inject",
+	tep_register_event_handler(tep, -1, "kvm", "kvm_nested_vmexit_inject",
 				   kvm_nested_vmexit_inject_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_get_page",
+	tep_register_event_handler(tep, -1, "kvmmmu", "kvm_mmu_get_page",
 				   kvm_mmu_get_page_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_sync_page",
+	tep_register_event_handler(tep, -1, "kvmmmu", "kvm_mmu_sync_page",
 				   kvm_mmu_print_role, NULL);
 
-	tep_register_event_handler(pevent, -1,
+	tep_register_event_handler(tep, -1,
 				   "kvmmmu", "kvm_mmu_unsync_page",
 				   kvm_mmu_print_role, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_zap_page",
+	tep_register_event_handler(tep, -1, "kvmmmu", "kvm_mmu_zap_page",
 				   kvm_mmu_print_role, NULL);
 
-	tep_register_event_handler(pevent, -1, "kvmmmu",
+	tep_register_event_handler(tep, -1, "kvmmmu",
 			"kvm_mmu_prepare_zap_page", kvm_mmu_print_role,
 			NULL);
 
-	tep_register_print_function(pevent,
+	tep_register_print_function(tep,
 				    process_is_writable_pte,
 				    TEP_FUNC_ARG_INT,
 				    "is_writable_pte",
@@ -487,37 +487,37 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_event_handler(pevent, -1, "kvm", "kvm_exit",
+	tep_unregister_event_handler(tep, -1, "kvm", "kvm_exit",
 				     kvm_exit_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvm", "kvm_emulate_insn",
+	tep_unregister_event_handler(tep, -1, "kvm", "kvm_emulate_insn",
 				     kvm_emulate_insn_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvm", "kvm_nested_vmexit",
+	tep_unregister_event_handler(tep, -1, "kvm", "kvm_nested_vmexit",
 				     kvm_nested_vmexit_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvm", "kvm_nested_vmexit_inject",
+	tep_unregister_event_handler(tep, -1, "kvm", "kvm_nested_vmexit_inject",
 				     kvm_nested_vmexit_inject_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_get_page",
+	tep_unregister_event_handler(tep, -1, "kvmmmu", "kvm_mmu_get_page",
 				     kvm_mmu_get_page_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_sync_page",
+	tep_unregister_event_handler(tep, -1, "kvmmmu", "kvm_mmu_sync_page",
 				     kvm_mmu_print_role, NULL);
 
-	tep_unregister_event_handler(pevent, -1,
+	tep_unregister_event_handler(tep, -1,
 				     "kvmmmu", "kvm_mmu_unsync_page",
 				     kvm_mmu_print_role, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_zap_page",
+	tep_unregister_event_handler(tep, -1, "kvmmmu", "kvm_mmu_zap_page",
 				     kvm_mmu_print_role, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "kvmmmu",
+	tep_unregister_event_handler(tep, -1, "kvmmmu",
 			"kvm_mmu_prepare_zap_page", kvm_mmu_print_role,
 			NULL);
 
-	tep_unregister_print_function(pevent, process_is_writable_pte,
+	tep_unregister_print_function(tep, process_is_writable_pte,
 				      "is_writable_pte");
 }
diff --git a/tools/lib/traceevent/plugin_mac80211.c b/tools/lib/traceevent/plugin_mac80211.c
index e38b9477aad2..884303c26b5c 100644
--- a/tools/lib/traceevent/plugin_mac80211.c
+++ b/tools/lib/traceevent/plugin_mac80211.c
@@ -87,17 +87,17 @@ static int drv_bss_info_changed(struct trace_seq *s,
 	return 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_event_handler(pevent, -1, "mac80211",
+	tep_register_event_handler(tep, -1, "mac80211",
 				   "drv_bss_info_changed",
 				   drv_bss_info_changed, NULL);
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_event_handler(pevent, -1, "mac80211",
+	tep_unregister_event_handler(tep, -1, "mac80211",
 				     "drv_bss_info_changed",
 				     drv_bss_info_changed, NULL);
 }
diff --git a/tools/lib/traceevent/plugin_sched_switch.c b/tools/lib/traceevent/plugin_sched_switch.c
index 834c9e378ff8..701c22913cf8 100644
--- a/tools/lib/traceevent/plugin_sched_switch.c
+++ b/tools/lib/traceevent/plugin_sched_switch.c
@@ -135,27 +135,27 @@ static int sched_switch_handler(struct trace_seq *s,
 	return 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_event_handler(pevent, -1, "sched", "sched_switch",
+	tep_register_event_handler(tep, -1, "sched", "sched_switch",
 				   sched_switch_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "sched", "sched_wakeup",
+	tep_register_event_handler(tep, -1, "sched", "sched_wakeup",
 				   sched_wakeup_handler, NULL);
 
-	tep_register_event_handler(pevent, -1, "sched", "sched_wakeup_new",
+	tep_register_event_handler(tep, -1, "sched", "sched_wakeup_new",
 				   sched_wakeup_handler, NULL);
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_event_handler(pevent, -1, "sched", "sched_switch",
+	tep_unregister_event_handler(tep, -1, "sched", "sched_switch",
 				     sched_switch_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "sched", "sched_wakeup",
+	tep_unregister_event_handler(tep, -1, "sched", "sched_wakeup",
 				     sched_wakeup_handler, NULL);
 
-	tep_unregister_event_handler(pevent, -1, "sched", "sched_wakeup_new",
+	tep_unregister_event_handler(tep, -1, "sched", "sched_wakeup_new",
 				     sched_wakeup_handler, NULL);
 }
diff --git a/tools/lib/traceevent/plugin_scsi.c b/tools/lib/traceevent/plugin_scsi.c
index 4eba25cc1431..5d0387a4b65a 100644
--- a/tools/lib/traceevent/plugin_scsi.c
+++ b/tools/lib/traceevent/plugin_scsi.c
@@ -414,9 +414,9 @@ unsigned long long process_scsi_trace_parse_cdb(struct trace_seq *s,
 	return 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_print_function(pevent,
+	tep_register_print_function(tep,
 				    process_scsi_trace_parse_cdb,
 				    TEP_FUNC_ARG_STRING,
 				    "scsi_trace_parse_cdb",
@@ -427,8 +427,8 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_print_function(pevent, process_scsi_trace_parse_cdb,
+	tep_unregister_print_function(tep, process_scsi_trace_parse_cdb,
 				      "scsi_trace_parse_cdb");
 }
diff --git a/tools/lib/traceevent/plugin_xen.c b/tools/lib/traceevent/plugin_xen.c
index bc0496e4c296..993b208d0323 100644
--- a/tools/lib/traceevent/plugin_xen.c
+++ b/tools/lib/traceevent/plugin_xen.c
@@ -120,9 +120,9 @@ unsigned long long process_xen_hypercall_name(struct trace_seq *s,
 	return 0;
 }
 
-int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *tep)
 {
-	tep_register_print_function(pevent,
+	tep_register_print_function(tep,
 				    process_xen_hypercall_name,
 				    TEP_FUNC_ARG_STRING,
 				    "xen_hypercall_name",
@@ -131,8 +131,8 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 	return 0;
 }
 
-void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
 {
-	tep_unregister_print_function(pevent, process_xen_hypercall_name,
+	tep_unregister_print_function(tep, process_xen_hypercall_name,
 				      "xen_hypercall_name");
 }

^ permalink raw reply	[flat|nested] 55+ messages in thread

* [tip:perf/core] perf tools, tools lib traceevent: Rename "pevent" member of struct tep_event to "tep"
  2019-04-01 16:43 ` [PATCH 13/15] tools/perf,tools/lib/traceevent: Rename "pevent" member of struct tep_event to "tep" Steven Rostedt
@ 2019-04-05 11:49   ` tip-bot for Tzvetomir Stoyanov
  0 siblings, 0 replies; 55+ messages in thread
From: tip-bot for Tzvetomir Stoyanov @ 2019-04-05 11:49 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: rostedt, jolsa, tstoyanov, akpm, namhyung, tglx, acme, hpa,
	mingo, linux-kernel

Commit-ID:  69769ce159cbfd7567815a86cfc3ea63423de61b
Gitweb:     https://git.kernel.org/tip/69769ce159cbfd7567815a86cfc3ea63423de61b
Author:     Tzvetomir Stoyanov <tstoyanov@vmware.com>
AuthorDate: Mon, 1 Apr 2019 12:43:18 -0400
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 1 Apr 2019 15:18:10 -0300

perf tools, tools lib traceevent: Rename "pevent" member of struct tep_event to "tep"

The member "pevent" of the struct tep_event is renamed to "tep". This
makes the struct consistent with the chosen naming convention:

  tep (trace event parser), instead of the old pevent.

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/linux-trace-devel/20190401132111.13727-3-tstoyanov@vmware.com
Link: http://lkml.kernel.org/r/20190401164344.627724996@goodmis.org
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse.c                 | 32 +++++++++++-----------
 tools/lib/traceevent/event-parse.h                 |  2 +-
 tools/lib/traceevent/parse-filter.c                |  6 ++--
 tools/lib/traceevent/plugin_function.c             |  2 +-
 tools/lib/traceevent/plugin_kmem.c                 |  4 +--
 tools/lib/traceevent/plugin_kvm.c                  |  4 +--
 tools/lib/traceevent/plugin_sched_switch.c         |  2 +-
 tools/perf/builtin-kmem.c                          |  2 +-
 tools/perf/util/data-convert-bt.c                  |  4 +--
 tools/perf/util/python.c                           |  2 +-
 .../perf/util/scripting-engines/trace-event-perl.c |  2 +-
 .../util/scripting-engines/trace-event-python.c    |  2 +-
 tools/perf/util/trace-event-parse.c                |  2 +-
 13 files changed, 33 insertions(+), 33 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index ceefa9b3d726..70ea638156f2 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -804,7 +804,7 @@ static int add_event(struct tep_handle *pevent, struct tep_event *event)
 	pevent->events[i] = event;
 	pevent->nr_events++;
 
-	event->pevent = pevent;
+	event->tep = pevent;
 
 	return 0;
 }
@@ -1656,8 +1656,8 @@ static int event_read_fields(struct tep_event *event, struct tep_format_field **
 			else if (field->flags & TEP_FIELD_IS_STRING)
 				field->elementsize = 1;
 			else if (field->flags & TEP_FIELD_IS_LONG)
-				field->elementsize = event->pevent ?
-						     event->pevent->long_size :
+				field->elementsize = event->tep ?
+						     event->tep->long_size :
 						     sizeof(long);
 		} else
 			field->elementsize = field->size;
@@ -3075,7 +3075,7 @@ process_function(struct tep_event *event, struct tep_print_arg *arg,
 		return process_dynamic_array_len(event, arg, tok);
 	}
 
-	func = find_func_handler(event->pevent, token);
+	func = find_func_handler(event->tep, token);
 	if (func) {
 		free_token(token);
 		return process_func_handler(event, func, arg, tok);
@@ -3405,7 +3405,7 @@ int tep_read_number_field(struct tep_format_field *field, const void *data,
 	case 2:
 	case 4:
 	case 8:
-		*value = tep_read_number(field->event->pevent,
+		*value = tep_read_number(field->event->tep,
 					 data + field->offset, field->size);
 		return 0;
 	default:
@@ -3566,7 +3566,7 @@ tep_find_event_by_name(struct tep_handle *tep,
 static unsigned long long
 eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg *arg)
 {
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	unsigned long long val = 0;
 	unsigned long long left, right;
 	struct tep_print_arg *typearg = NULL;
@@ -3907,7 +3907,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 			  struct tep_event *event, const char *format,
 			  int len_arg, struct tep_print_arg *arg)
 {
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	struct tep_print_flag_sym *flag;
 	struct tep_format_field *field;
 	struct printk_map *printk;
@@ -4256,7 +4256,7 @@ static void free_args(struct tep_print_arg *args)
 
 static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, struct tep_event *event)
 {
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	struct tep_format_field *field, *ip_field;
 	struct tep_print_arg *args, *arg, **next;
 	unsigned long long ip, val;
@@ -4434,7 +4434,7 @@ static char *
 get_bprint_format(void *data, int size __maybe_unused,
 		  struct tep_event *event)
 {
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	unsigned long long addr;
 	struct tep_format_field *field;
 	struct printk_map *printk;
@@ -4835,7 +4835,7 @@ void tep_print_field(struct trace_seq *s, void *data,
 {
 	unsigned long long val;
 	unsigned int offset, len, i;
-	struct tep_handle *pevent = field->event->pevent;
+	struct tep_handle *pevent = field->event->tep;
 
 	if (field->flags & TEP_FIELD_IS_ARRAY) {
 		offset = field->offset;
@@ -4910,7 +4910,7 @@ void tep_print_fields(struct trace_seq *s, void *data,
 
 static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_event *event)
 {
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	struct tep_print_fmt *print_fmt = &event->print_fmt;
 	struct tep_print_arg *arg = print_fmt->args;
 	struct tep_print_arg *args = NULL;
@@ -5424,7 +5424,7 @@ void tep_event_info(struct trace_seq *s, struct tep_event *event,
 {
 	int print_pretty = 1;
 
-	if (event->pevent->print_raw || (event->flags & TEP_EVENT_FL_PRINTRAW))
+	if (event->tep->print_raw || (event->flags & TEP_EVENT_FL_PRINTRAW))
 		tep_print_fields(s, record->data, record->size, event);
 	else {
 
@@ -6163,7 +6163,7 @@ enum tep_errno __tep_parse_format(struct tep_event **eventp,
 	}
 
 	/* Add pevent to event so that it can be referenced */
-	event->pevent = pevent;
+	event->tep = pevent;
 
 	ret = event_read_format(event);
 	if (ret < 0) {
@@ -6357,8 +6357,8 @@ void *tep_get_field_raw(struct trace_seq *s, struct tep_event *event,
 
 	offset = field->offset;
 	if (field->flags & TEP_FIELD_IS_DYNAMIC) {
-		offset = tep_read_number(event->pevent,
-					    data + offset, field->size);
+		offset = tep_read_number(event->tep,
+					 data + offset, field->size);
 		*len = offset >> 16;
 		offset &= 0xffff;
 	} else
@@ -6492,7 +6492,7 @@ int tep_print_func_field(struct trace_seq *s, const char *fmt,
 			 struct tep_record *record, int err)
 {
 	struct tep_format_field *field = tep_find_field(event, name);
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	unsigned long long val;
 	struct func_map *func;
 	char tmp[128];
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 2720a30ef86b..de7ace173e75 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -278,7 +278,7 @@ struct tep_print_fmt {
 };
 
 struct tep_event {
-	struct tep_handle	*pevent;
+	struct tep_handle	*tep;
 	char			*name;
 	int			id;
 	int			flags;
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index 5d8f9d9bc253..123358209297 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -1528,8 +1528,8 @@ get_comm(struct tep_event *event, struct tep_record *record)
 	const char *comm;
 	int pid;
 
-	pid = tep_data_pid(event->pevent, record);
-	comm = tep_data_comm_from_pid(event->pevent, pid);
+	pid = tep_data_pid(event->tep, record);
+	comm = tep_data_comm_from_pid(event->tep, pid);
 	return comm;
 }
 
@@ -1727,7 +1727,7 @@ static const char *get_field_str(struct tep_filter_arg *arg, struct tep_record *
 
 	} else {
 		event = arg->str.field->event;
-		pevent = event->pevent;
+		pevent = event->tep;
 		addr = get_value(event, arg->str.field, record);
 
 		if (arg->str.field->flags & (TEP_FIELD_IS_POINTER | TEP_FIELD_IS_LONG))
diff --git a/tools/lib/traceevent/plugin_function.c b/tools/lib/traceevent/plugin_function.c
index e93f33bd705f..d6a8df060614 100644
--- a/tools/lib/traceevent/plugin_function.c
+++ b/tools/lib/traceevent/plugin_function.c
@@ -126,7 +126,7 @@ static int add_and_get_index(const char *parent, const char *child, int cpu)
 static int function_handler(struct trace_seq *s, struct tep_record *record,
 			    struct tep_event *event, void *context)
 {
-	struct tep_handle *pevent = event->pevent;
+	struct tep_handle *pevent = event->tep;
 	unsigned long long function;
 	unsigned long long pfunction;
 	const char *func;
diff --git a/tools/lib/traceevent/plugin_kmem.c b/tools/lib/traceevent/plugin_kmem.c
index c09bafdd8377..edaec5d962c3 100644
--- a/tools/lib/traceevent/plugin_kmem.c
+++ b/tools/lib/traceevent/plugin_kmem.c
@@ -39,11 +39,11 @@ static int call_site_handler(struct trace_seq *s, struct tep_record *record,
 	if (tep_read_number_field(field, data, &val))
 		return 1;
 
-	func = tep_find_function(event->pevent, val);
+	func = tep_find_function(event->tep, val);
 	if (!func)
 		return 1;
 
-	addr = tep_find_function_address(event->pevent, val);
+	addr = tep_find_function_address(event->tep, val);
 
 	trace_seq_printf(s, "(%s+0x%x) ", func, (int)(val - addr));
 	return 1;
diff --git a/tools/lib/traceevent/plugin_kvm.c b/tools/lib/traceevent/plugin_kvm.c
index 472298c2b531..c8e623065a7e 100644
--- a/tools/lib/traceevent/plugin_kvm.c
+++ b/tools/lib/traceevent/plugin_kvm.c
@@ -389,8 +389,8 @@ static int kvm_mmu_print_role(struct trace_seq *s, struct tep_record *record,
 	 * We can only use the structure if file is of the same
 	 * endianness.
 	 */
-	if (tep_is_file_bigendian(event->pevent) ==
-	    tep_is_local_bigendian(event->pevent)) {
+	if (tep_is_file_bigendian(event->tep) ==
+	    tep_is_local_bigendian(event->tep)) {
 
 		trace_seq_printf(s, "%u q%u%s %s%s %spae %snxe %swp%s%s%s",
 				 role.level,
diff --git a/tools/lib/traceevent/plugin_sched_switch.c b/tools/lib/traceevent/plugin_sched_switch.c
index 701c22913cf8..957389a0ff7a 100644
--- a/tools/lib/traceevent/plugin_sched_switch.c
+++ b/tools/lib/traceevent/plugin_sched_switch.c
@@ -62,7 +62,7 @@ static void write_and_save_comm(struct tep_format_field *field,
 	comm = &s->buffer[len];
 
 	/* Help out the comm to ids. This will handle dups */
-	tep_register_comm(field->event->pevent, comm, pid);
+	tep_register_comm(field->event->tep, comm, pid);
 }
 
 static int sched_wakeup_handler(struct trace_seq *s,
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index fa520f4b8095..b80eee455111 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -1975,7 +1975,7 @@ int cmd_kmem(int argc, const char **argv)
 			goto out_delete;
 		}
 
-		kmem_page_size = tep_get_page_size(evsel->tp_format->pevent);
+		kmem_page_size = tep_get_page_size(evsel->tp_format->tep);
 		symbol_conf.use_callchain = true;
 	}
 
diff --git a/tools/perf/util/data-convert-bt.c b/tools/perf/util/data-convert-bt.c
index 26af43ad9ddd..e0311c9750ad 100644
--- a/tools/perf/util/data-convert-bt.c
+++ b/tools/perf/util/data-convert-bt.c
@@ -310,7 +310,7 @@ static int add_tracepoint_field_value(struct ctf_writer *cw,
 	if (flags & TEP_FIELD_IS_DYNAMIC) {
 		unsigned long long tmp_val;
 
-		tmp_val = tep_read_number(fmtf->event->pevent,
+		tmp_val = tep_read_number(fmtf->event->tep,
 					  data + offset, len);
 		offset = tmp_val;
 		len = offset >> 16;
@@ -354,7 +354,7 @@ static int add_tracepoint_field_value(struct ctf_writer *cw,
 			unsigned long long value_int;
 
 			value_int = tep_read_number(
-					fmtf->event->pevent,
+					fmtf->event->tep,
 					data + offset + i * len, len);
 
 			if (!(flags & TEP_FIELD_IS_SIGNED))
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index dda0ac978b1e..6aa7e2352e16 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -342,7 +342,7 @@ static bool is_tracepoint(struct pyrf_event *pevent)
 static PyObject*
 tracepoint_field(struct pyrf_event *pe, struct tep_format_field *field)
 {
-	struct tep_handle *pevent = field->event->pevent;
+	struct tep_handle *pevent = field->event->tep;
 	void *data = pe->sample.raw_data;
 	PyObject *ret = NULL;
 	unsigned long long val;
diff --git a/tools/perf/util/scripting-engines/trace-event-perl.c b/tools/perf/util/scripting-engines/trace-event-perl.c
index 5f06378a482b..61aa7f3df915 100644
--- a/tools/perf/util/scripting-engines/trace-event-perl.c
+++ b/tools/perf/util/scripting-engines/trace-event-perl.c
@@ -372,7 +372,7 @@ static void perl_process_tracepoint(struct perf_sample *sample,
 	ns = nsecs - s * NSEC_PER_SEC;
 
 	scripting_context->event_data = data;
-	scripting_context->pevent = evsel->tp_format->pevent;
+	scripting_context->pevent = evsel->tp_format->tep;
 
 	ENTER;
 	SAVETMPS;
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index 09604c6508f0..22f52b669871 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -837,7 +837,7 @@ static void python_process_tracepoint(struct perf_sample *sample,
 	ns = nsecs - s * NSEC_PER_SEC;
 
 	scripting_context->event_data = data;
-	scripting_context->pevent = evsel->tp_format->pevent;
+	scripting_context->pevent = evsel->tp_format->tep;
 
 	context = _PyCapsule_New(scripting_context, NULL, NULL);
 
diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index ad74be1f0e42..863955e4094e 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -111,7 +111,7 @@ raw_field_value(struct tep_event *event, const char *name, void *data)
 
 unsigned long long read_size(struct tep_event *event, void *ptr, int size)
 {
-	return tep_read_number(event->pevent, ptr, size);
+	return tep_read_number(event->tep, ptr, size);
 }
 
 void event_format__fprintf(struct tep_event *event,

^ permalink raw reply	[flat|nested] 55+ messages in thread

* [tip:perf/core] perf tools, tools lib traceevent: Rename "pevent" member of struct tep_event_filter to "tep"
  2019-04-01 16:43 ` [PATCH 14/15] tools/perf,tools/lib/traceevent: Rename "pevent" member of struct tep_event_filter " Steven Rostedt
@ 2019-04-05 11:50   ` tip-bot for Tzvetomir Stoyanov
  0 siblings, 0 replies; 55+ messages in thread
From: tip-bot for Tzvetomir Stoyanov @ 2019-04-05 11:50 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: mingo, linux-kernel, rostedt, namhyung, tglx, jolsa, akpm,
	tstoyanov, hpa, acme

Commit-ID:  6b1f4c426a60387f1291d2ba3838c7b0914be12f
Gitweb:     https://git.kernel.org/tip/6b1f4c426a60387f1291d2ba3838c7b0914be12f
Author:     Tzvetomir Stoyanov <tstoyanov@vmware.com>
AuthorDate: Mon, 1 Apr 2019 12:43:19 -0400
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 1 Apr 2019 15:18:10 -0300

perf tools, tools lib traceevent: Rename "pevent" member of struct tep_event_filter to "tep"

The member "pevent" of the struct tep_event_filter is renamed to "tep".
This makes the struct consistent with the chosen naming convention:

  tep (trace event parser), instead of the old pevent.

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/linux-trace-devel/20190401132111.13727-4-tstoyanov@vmware.com
Link: http://lkml.kernel.org/r/20190401164344.785896189@goodmis.org
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse.h  |  2 +-
 tools/lib/traceevent/parse-filter.c | 14 +++++++-------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index de7ace173e75..642f68ab5fb2 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -717,7 +717,7 @@ struct tep_filter_type {
 #define TEP_FILTER_ERROR_BUFSZ  1024
 
 struct tep_event_filter {
-	struct tep_handle	*pevent;
+	struct tep_handle	*tep;
 	int			filters;
 	struct tep_filter_type	*event_filters;
 	char			error_buffer[TEP_FILTER_ERROR_BUFSZ];
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index 123358209297..6a4d5d1dd1cd 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -154,7 +154,7 @@ add_filter_type(struct tep_event_filter *filter, int id)
 
 	filter_type = &filter->event_filters[i];
 	filter_type->event_id = id;
-	filter_type->event = tep_find_event(filter->pevent, id);
+	filter_type->event = tep_find_event(filter->tep, id);
 	filter_type->filter = NULL;
 
 	filter->filters++;
@@ -175,7 +175,7 @@ struct tep_event_filter *tep_filter_alloc(struct tep_handle *tep)
 		return NULL;
 
 	memset(filter, 0, sizeof(*filter));
-	filter->pevent = tep;
+	filter->tep = tep;
 	tep_ref(tep);
 
 	return filter;
@@ -1257,7 +1257,7 @@ static void filter_init_error_buf(struct tep_event_filter *filter)
 enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
 					 const char *filter_str)
 {
-	struct tep_handle *pevent = filter->pevent;
+	struct tep_handle *pevent = filter->tep;
 	struct event_list *event;
 	struct event_list *events = NULL;
 	const char *filter_start;
@@ -1377,7 +1377,7 @@ int tep_filter_strerror(struct tep_event_filter *filter, enum tep_errno err,
 		return 0;
 	}
 
-	return tep_strerror(filter->pevent, err, buf, buflen);
+	return tep_strerror(filter->tep, err, buf, buflen);
 }
 
 /**
@@ -1440,7 +1440,7 @@ void tep_filter_reset(struct tep_event_filter *filter)
 
 void tep_filter_free(struct tep_event_filter *filter)
 {
-	tep_unref(filter->pevent);
+	tep_unref(filter->tep);
 
 	tep_filter_reset(filter);
 
@@ -1462,7 +1462,7 @@ static int copy_filter_type(struct tep_event_filter *filter,
 	/* Can't assume that the pevent's are the same */
 	sys = filter_type->event->system;
 	name = filter_type->event->name;
-	event = tep_find_event_by_name(filter->pevent, sys, name);
+	event = tep_find_event_by_name(filter->tep, sys, name);
 	if (!event)
 		return -1;
 
@@ -1872,7 +1872,7 @@ int tep_event_filtered(struct tep_event_filter *filter, int event_id)
 enum tep_errno tep_filter_match(struct tep_event_filter *filter,
 				struct tep_record *record)
 {
-	struct tep_handle *pevent = filter->pevent;
+	struct tep_handle *pevent = filter->tep;
 	struct tep_filter_type *filter_type;
 	int event_id;
 	int ret;

^ permalink raw reply	[flat|nested] 55+ messages in thread

* [tip:perf/core] tools lib traceevent: Rename input arguments and local variables of libtraceevent from pevent to tep
  2019-04-01 16:43 ` [PATCH 15/15] tools/lib/traceevent: Rename input arguments and local variables of libtraceevent from pevent to tep Steven Rostedt
@ 2019-04-05 11:51   ` tip-bot for Tzvetomir Stoyanov
  0 siblings, 0 replies; 55+ messages in thread
From: tip-bot for Tzvetomir Stoyanov @ 2019-04-05 11:51 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: namhyung, tstoyanov, acme, jolsa, mingo, hpa, rostedt, tglx,
	linux-kernel, akpm

Commit-ID:  c9bd7796959a8b92afe79c392dd54992bfc67328
Gitweb:     https://git.kernel.org/tip/c9bd7796959a8b92afe79c392dd54992bfc67328
Author:     Tzvetomir Stoyanov <tstoyanov@vmware.com>
AuthorDate: Mon, 1 Apr 2019 12:43:20 -0400
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 1 Apr 2019 15:18:10 -0300

tools lib traceevent: Rename input arguments and local variables of libtraceevent from pevent to tep

"pevent" to "tep" renaming of:
 - all "pevent" input arguments of libtraceevent internal functions.
 - all local "pevent" variables of libtraceevent.

This makes the implementation consistent with the chosen naming
convention, tep (trace event parser), and will avoid any confusion with
the old pevent name

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/linux-trace-devel/20190401132111.13727-5-tstoyanov@vmware.com
Link: http://lkml.kernel.org/r/20190401164344.944953447@goodmis.org
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse.c     | 306 ++++++++++++++++-----------------
 tools/lib/traceevent/event-plugin.c    |  24 +--
 tools/lib/traceevent/parse-filter.c    |  24 +--
 tools/lib/traceevent/plugin_function.c |   6 +-
 4 files changed, 180 insertions(+), 180 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 70ea638156f2..7d4faaecd243 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -148,14 +148,14 @@ struct cmdline_list {
 	int			pid;
 };
 
-static int cmdline_init(struct tep_handle *pevent)
+static int cmdline_init(struct tep_handle *tep)
 {
-	struct cmdline_list *cmdlist = pevent->cmdlist;
+	struct cmdline_list *cmdlist = tep->cmdlist;
 	struct cmdline_list *item;
 	struct tep_cmdline *cmdlines;
 	int i;
 
-	cmdlines = malloc(sizeof(*cmdlines) * pevent->cmdline_count);
+	cmdlines = malloc(sizeof(*cmdlines) * tep->cmdline_count);
 	if (!cmdlines)
 		return -1;
 
@@ -169,15 +169,15 @@ static int cmdline_init(struct tep_handle *pevent)
 		free(item);
 	}
 
-	qsort(cmdlines, pevent->cmdline_count, sizeof(*cmdlines), cmdline_cmp);
+	qsort(cmdlines, tep->cmdline_count, sizeof(*cmdlines), cmdline_cmp);
 
-	pevent->cmdlines = cmdlines;
-	pevent->cmdlist = NULL;
+	tep->cmdlines = cmdlines;
+	tep->cmdlist = NULL;
 
 	return 0;
 }
 
-static const char *find_cmdline(struct tep_handle *pevent, int pid)
+static const char *find_cmdline(struct tep_handle *tep, int pid)
 {
 	const struct tep_cmdline *comm;
 	struct tep_cmdline key;
@@ -185,13 +185,13 @@ static const char *find_cmdline(struct tep_handle *pevent, int pid)
 	if (!pid)
 		return "<idle>";
 
-	if (!pevent->cmdlines && cmdline_init(pevent))
+	if (!tep->cmdlines && cmdline_init(tep))
 		return "<not enough memory for cmdlines!>";
 
 	key.pid = pid;
 
-	comm = bsearch(&key, pevent->cmdlines, pevent->cmdline_count,
-		       sizeof(*pevent->cmdlines), cmdline_cmp);
+	comm = bsearch(&key, tep->cmdlines, tep->cmdline_count,
+		       sizeof(*tep->cmdlines), cmdline_cmp);
 
 	if (comm)
 		return comm->comm;
@@ -232,10 +232,10 @@ bool tep_is_pid_registered(struct tep_handle *tep, int pid)
  * we must add this pid. This is much slower than when cmdlines
  * are added before the array is initialized.
  */
-static int add_new_comm(struct tep_handle *pevent,
+static int add_new_comm(struct tep_handle *tep,
 			const char *comm, int pid, bool override)
 {
-	struct tep_cmdline *cmdlines = pevent->cmdlines;
+	struct tep_cmdline *cmdlines = tep->cmdlines;
 	struct tep_cmdline *cmdline;
 	struct tep_cmdline key;
 	char *new_comm;
@@ -246,8 +246,8 @@ static int add_new_comm(struct tep_handle *pevent,
 	/* avoid duplicates */
 	key.pid = pid;
 
-	cmdline = bsearch(&key, pevent->cmdlines, pevent->cmdline_count,
-		       sizeof(*pevent->cmdlines), cmdline_cmp);
+	cmdline = bsearch(&key, tep->cmdlines, tep->cmdline_count,
+			  sizeof(*tep->cmdlines), cmdline_cmp);
 	if (cmdline) {
 		if (!override) {
 			errno = EEXIST;
@@ -264,26 +264,26 @@ static int add_new_comm(struct tep_handle *pevent,
 		return 0;
 	}
 
-	cmdlines = realloc(cmdlines, sizeof(*cmdlines) * (pevent->cmdline_count + 1));
+	cmdlines = realloc(cmdlines, sizeof(*cmdlines) * (tep->cmdline_count + 1));
 	if (!cmdlines) {
 		errno = ENOMEM;
 		return -1;
 	}
 
-	cmdlines[pevent->cmdline_count].comm = strdup(comm);
-	if (!cmdlines[pevent->cmdline_count].comm) {
+	cmdlines[tep->cmdline_count].comm = strdup(comm);
+	if (!cmdlines[tep->cmdline_count].comm) {
 		free(cmdlines);
 		errno = ENOMEM;
 		return -1;
 	}
 
-	cmdlines[pevent->cmdline_count].pid = pid;
+	cmdlines[tep->cmdline_count].pid = pid;
 		
-	if (cmdlines[pevent->cmdline_count].comm)
-		pevent->cmdline_count++;
+	if (cmdlines[tep->cmdline_count].comm)
+		tep->cmdline_count++;
 
-	qsort(cmdlines, pevent->cmdline_count, sizeof(*cmdlines), cmdline_cmp);
-	pevent->cmdlines = cmdlines;
+	qsort(cmdlines, tep->cmdline_count, sizeof(*cmdlines), cmdline_cmp);
+	tep->cmdlines = cmdlines;
 
 	return 0;
 }
@@ -408,18 +408,18 @@ static int func_bcmp(const void *a, const void *b)
 	return 1;
 }
 
-static int func_map_init(struct tep_handle *pevent)
+static int func_map_init(struct tep_handle *tep)
 {
 	struct func_list *funclist;
 	struct func_list *item;
 	struct func_map *func_map;
 	int i;
 
-	func_map = malloc(sizeof(*func_map) * (pevent->func_count + 1));
+	func_map = malloc(sizeof(*func_map) * (tep->func_count + 1));
 	if (!func_map)
 		return -1;
 
-	funclist = pevent->funclist;
+	funclist = tep->funclist;
 
 	i = 0;
 	while (funclist) {
@@ -432,34 +432,34 @@ static int func_map_init(struct tep_handle *pevent)
 		free(item);
 	}
 
-	qsort(func_map, pevent->func_count, sizeof(*func_map), func_cmp);
+	qsort(func_map, tep->func_count, sizeof(*func_map), func_cmp);
 
 	/*
 	 * Add a special record at the end.
 	 */
-	func_map[pevent->func_count].func = NULL;
-	func_map[pevent->func_count].addr = 0;
-	func_map[pevent->func_count].mod = NULL;
+	func_map[tep->func_count].func = NULL;
+	func_map[tep->func_count].addr = 0;
+	func_map[tep->func_count].mod = NULL;
 
-	pevent->func_map = func_map;
-	pevent->funclist = NULL;
+	tep->func_map = func_map;
+	tep->funclist = NULL;
 
 	return 0;
 }
 
 static struct func_map *
-__find_func(struct tep_handle *pevent, unsigned long long addr)
+__find_func(struct tep_handle *tep, unsigned long long addr)
 {
 	struct func_map *func;
 	struct func_map key;
 
-	if (!pevent->func_map)
-		func_map_init(pevent);
+	if (!tep->func_map)
+		func_map_init(tep);
 
 	key.addr = addr;
 
-	func = bsearch(&key, pevent->func_map, pevent->func_count,
-		       sizeof(*pevent->func_map), func_bcmp);
+	func = bsearch(&key, tep->func_map, tep->func_count,
+		       sizeof(*tep->func_map), func_bcmp);
 
 	return func;
 }
@@ -510,18 +510,18 @@ void tep_reset_function_resolver(struct tep_handle *tep)
 }
 
 static struct func_map *
-find_func(struct tep_handle *pevent, unsigned long long addr)
+find_func(struct tep_handle *tep, unsigned long long addr)
 {
 	struct func_map *map;
 
-	if (!pevent->func_resolver)
-		return __find_func(pevent, addr);
+	if (!tep->func_resolver)
+		return __find_func(tep, addr);
 
-	map = &pevent->func_resolver->map;
+	map = &tep->func_resolver->map;
 	map->mod  = NULL;
 	map->addr = addr;
-	map->func = pevent->func_resolver->func(pevent->func_resolver->priv,
-						&map->addr, &map->mod);
+	map->func = tep->func_resolver->func(tep->func_resolver->priv,
+					     &map->addr, &map->mod);
 	if (map->func == NULL)
 		return NULL;
 
@@ -662,18 +662,18 @@ static int printk_cmp(const void *a, const void *b)
 	return 0;
 }
 
-static int printk_map_init(struct tep_handle *pevent)
+static int printk_map_init(struct tep_handle *tep)
 {
 	struct printk_list *printklist;
 	struct printk_list *item;
 	struct printk_map *printk_map;
 	int i;
 
-	printk_map = malloc(sizeof(*printk_map) * (pevent->printk_count + 1));
+	printk_map = malloc(sizeof(*printk_map) * (tep->printk_count + 1));
 	if (!printk_map)
 		return -1;
 
-	printklist = pevent->printklist;
+	printklist = tep->printklist;
 
 	i = 0;
 	while (printklist) {
@@ -685,27 +685,27 @@ static int printk_map_init(struct tep_handle *pevent)
 		free(item);
 	}
 
-	qsort(printk_map, pevent->printk_count, sizeof(*printk_map), printk_cmp);
+	qsort(printk_map, tep->printk_count, sizeof(*printk_map), printk_cmp);
 
-	pevent->printk_map = printk_map;
-	pevent->printklist = NULL;
+	tep->printk_map = printk_map;
+	tep->printklist = NULL;
 
 	return 0;
 }
 
 static struct printk_map *
-find_printk(struct tep_handle *pevent, unsigned long long addr)
+find_printk(struct tep_handle *tep, unsigned long long addr)
 {
 	struct printk_map *printk;
 	struct printk_map key;
 
-	if (!pevent->printk_map && printk_map_init(pevent))
+	if (!tep->printk_map && printk_map_init(tep))
 		return NULL;
 
 	key.addr = addr;
 
-	printk = bsearch(&key, pevent->printk_map, pevent->printk_count,
-			 sizeof(*pevent->printk_map), printk_cmp);
+	printk = bsearch(&key, tep->printk_map, tep->printk_count,
+			 sizeof(*tep->printk_map), printk_cmp);
 
 	return printk;
 }
@@ -782,29 +782,29 @@ static struct tep_event *alloc_event(void)
 	return calloc(1, sizeof(struct tep_event));
 }
 
-static int add_event(struct tep_handle *pevent, struct tep_event *event)
+static int add_event(struct tep_handle *tep, struct tep_event *event)
 {
 	int i;
-	struct tep_event **events = realloc(pevent->events, sizeof(event) *
-					    (pevent->nr_events + 1));
+	struct tep_event **events = realloc(tep->events, sizeof(event) *
+					    (tep->nr_events + 1));
 	if (!events)
 		return -1;
 
-	pevent->events = events;
+	tep->events = events;
 
-	for (i = 0; i < pevent->nr_events; i++) {
-		if (pevent->events[i]->id > event->id)
+	for (i = 0; i < tep->nr_events; i++) {
+		if (tep->events[i]->id > event->id)
 			break;
 	}
-	if (i < pevent->nr_events)
-		memmove(&pevent->events[i + 1],
-			&pevent->events[i],
-			sizeof(event) * (pevent->nr_events - i));
+	if (i < tep->nr_events)
+		memmove(&tep->events[i + 1],
+			&tep->events[i],
+			sizeof(event) * (tep->nr_events - i));
 
-	pevent->events[i] = event;
-	pevent->nr_events++;
+	tep->events[i] = event;
+	tep->nr_events++;
 
-	event->tep = pevent;
+	event->tep = tep;
 
 	return 0;
 }
@@ -2941,14 +2941,14 @@ process_bitmask(struct tep_event *event __maybe_unused, struct tep_print_arg *ar
 }
 
 static struct tep_function_handler *
-find_func_handler(struct tep_handle *pevent, char *func_name)
+find_func_handler(struct tep_handle *tep, char *func_name)
 {
 	struct tep_function_handler *func;
 
-	if (!pevent)
+	if (!tep)
 		return NULL;
 
-	for (func = pevent->func_handlers; func; func = func->next) {
+	for (func = tep->func_handlers; func; func = func->next) {
 		if (strcmp(func->name, func_name) == 0)
 			break;
 	}
@@ -2956,12 +2956,12 @@ find_func_handler(struct tep_handle *pevent, char *func_name)
 	return func;
 }
 
-static void remove_func_handler(struct tep_handle *pevent, char *func_name)
+static void remove_func_handler(struct tep_handle *tep, char *func_name)
 {
 	struct tep_function_handler *func;
 	struct tep_function_handler **next;
 
-	next = &pevent->func_handlers;
+	next = &tep->func_handlers;
 	while ((func = *next)) {
 		if (strcmp(func->name, func_name) == 0) {
 			*next = func->next;
@@ -3413,7 +3413,7 @@ int tep_read_number_field(struct tep_format_field *field, const void *data,
 	}
 }
 
-static int get_common_info(struct tep_handle *pevent,
+static int get_common_info(struct tep_handle *tep,
 			   const char *type, int *offset, int *size)
 {
 	struct tep_event *event;
@@ -3423,12 +3423,12 @@ static int get_common_info(struct tep_handle *pevent,
 	 * All events should have the same common elements.
 	 * Pick any event to find where the type is;
 	 */
-	if (!pevent->events) {
+	if (!tep->events) {
 		do_warning("no event_list!");
 		return -1;
 	}
 
-	event = pevent->events[0];
+	event = tep->events[0];
 	field = tep_find_common_field(event, type);
 	if (!field)
 		return -1;
@@ -3439,58 +3439,58 @@ static int get_common_info(struct tep_handle *pevent,
 	return 0;
 }
 
-static int __parse_common(struct tep_handle *pevent, void *data,
+static int __parse_common(struct tep_handle *tep, void *data,
 			  int *size, int *offset, const char *name)
 {
 	int ret;
 
 	if (!*size) {
-		ret = get_common_info(pevent, name, offset, size);
+		ret = get_common_info(tep, name, offset, size);
 		if (ret < 0)
 			return ret;
 	}
-	return tep_read_number(pevent, data + *offset, *size);
+	return tep_read_number(tep, data + *offset, *size);
 }
 
-static int trace_parse_common_type(struct tep_handle *pevent, void *data)
+static int trace_parse_common_type(struct tep_handle *tep, void *data)
 {
-	return __parse_common(pevent, data,
-			      &pevent->type_size, &pevent->type_offset,
+	return __parse_common(tep, data,
+			      &tep->type_size, &tep->type_offset,
 			      "common_type");
 }
 
-static int parse_common_pid(struct tep_handle *pevent, void *data)
+static int parse_common_pid(struct tep_handle *tep, void *data)
 {
-	return __parse_common(pevent, data,
-			      &pevent->pid_size, &pevent->pid_offset,
+	return __parse_common(tep, data,
+			      &tep->pid_size, &tep->pid_offset,
 			      "common_pid");
 }
 
-static int parse_common_pc(struct tep_handle *pevent, void *data)
+static int parse_common_pc(struct tep_handle *tep, void *data)
 {
-	return __parse_common(pevent, data,
-			      &pevent->pc_size, &pevent->pc_offset,
+	return __parse_common(tep, data,
+			      &tep->pc_size, &tep->pc_offset,
 			      "common_preempt_count");
 }
 
-static int parse_common_flags(struct tep_handle *pevent, void *data)
+static int parse_common_flags(struct tep_handle *tep, void *data)
 {
-	return __parse_common(pevent, data,
-			      &pevent->flags_size, &pevent->flags_offset,
+	return __parse_common(tep, data,
+			      &tep->flags_size, &tep->flags_offset,
 			      "common_flags");
 }
 
-static int parse_common_lock_depth(struct tep_handle *pevent, void *data)
+static int parse_common_lock_depth(struct tep_handle *tep, void *data)
 {
-	return __parse_common(pevent, data,
-			      &pevent->ld_size, &pevent->ld_offset,
+	return __parse_common(tep, data,
+			      &tep->ld_size, &tep->ld_offset,
 			      "common_lock_depth");
 }
 
-static int parse_common_migrate_disable(struct tep_handle *pevent, void *data)
+static int parse_common_migrate_disable(struct tep_handle *tep, void *data)
 {
-	return __parse_common(pevent, data,
-			      &pevent->ld_size, &pevent->ld_offset,
+	return __parse_common(tep, data,
+			      &tep->ld_size, &tep->ld_offset,
 			      "common_migrate_disable");
 }
 
@@ -3566,7 +3566,7 @@ tep_find_event_by_name(struct tep_handle *tep,
 static unsigned long long
 eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg *arg)
 {
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	unsigned long long val = 0;
 	unsigned long long left, right;
 	struct tep_print_arg *typearg = NULL;
@@ -3588,7 +3588,7 @@ eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg
 			
 		}
 		/* must be a number */
-		val = tep_read_number(pevent, data + arg->field.field->offset,
+		val = tep_read_number(tep, data + arg->field.field->offset,
 				      arg->field.field->size);
 		break;
 	case TEP_PRINT_FLAGS:
@@ -3628,11 +3628,11 @@ eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg
 			}
 
 			/* Default to long size */
-			field_size = pevent->long_size;
+			field_size = tep->long_size;
 
 			switch (larg->type) {
 			case TEP_PRINT_DYNAMIC_ARRAY:
-				offset = tep_read_number(pevent,
+				offset = tep_read_number(tep,
 						   data + larg->dynarray.field->offset,
 						   larg->dynarray.field->size);
 				if (larg->dynarray.field->elementsize)
@@ -3661,7 +3661,7 @@ eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg
 			default:
 				goto default_op; /* oops, all bets off */
 			}
-			val = tep_read_number(pevent,
+			val = tep_read_number(tep,
 					      data + offset, field_size);
 			if (typearg)
 				val = eval_type(val, typearg, 1);
@@ -3762,7 +3762,7 @@ eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg
 		}
 		break;
 	case TEP_PRINT_DYNAMIC_ARRAY_LEN:
-		offset = tep_read_number(pevent,
+		offset = tep_read_number(tep,
 					 data + arg->dynarray.field->offset,
 					 arg->dynarray.field->size);
 		/*
@@ -3774,7 +3774,7 @@ eval_num_arg(void *data, int size, struct tep_event *event, struct tep_print_arg
 		break;
 	case TEP_PRINT_DYNAMIC_ARRAY:
 		/* Without [], we pass the address to the dynamic data */
-		offset = tep_read_number(pevent,
+		offset = tep_read_number(tep,
 					 data + arg->dynarray.field->offset,
 					 arg->dynarray.field->size);
 		/*
@@ -3849,7 +3849,7 @@ static void print_str_to_seq(struct trace_seq *s, const char *format,
 		trace_seq_printf(s, format, str);
 }
 
-static void print_bitmask_to_seq(struct tep_handle *pevent,
+static void print_bitmask_to_seq(struct tep_handle *tep,
 				 struct trace_seq *s, const char *format,
 				 int len_arg, const void *data, int size)
 {
@@ -3881,7 +3881,7 @@ static void print_bitmask_to_seq(struct tep_handle *pevent,
 		 * In the kernel, this is an array of long words, thus
 		 * endianness is very important.
 		 */
-		if (pevent->file_bigendian)
+		if (tep->file_bigendian)
 			index = size - (len + 1);
 		else
 			index = len;
@@ -3907,7 +3907,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 			  struct tep_event *event, const char *format,
 			  int len_arg, struct tep_print_arg *arg)
 {
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	struct tep_print_flag_sym *flag;
 	struct tep_format_field *field;
 	struct printk_map *printk;
@@ -3944,7 +3944,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 		 * is a pointer.
 		 */
 		if (!(field->flags & TEP_FIELD_IS_ARRAY) &&
-		    field->size == pevent->long_size) {
+		    field->size == tep->long_size) {
 
 			/* Handle heterogeneous recording and processing
 			 * architectures
@@ -3959,12 +3959,12 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 			 * on 32-bit devices:
 			 * In this case, 64 bits must be read.
 			 */
-			addr = (pevent->long_size == 8) ?
+			addr = (tep->long_size == 8) ?
 				*(unsigned long long *)(data + field->offset) :
 				(unsigned long long)*(unsigned int *)(data + field->offset);
 
 			/* Check if it matches a print format */
-			printk = find_printk(pevent, addr);
+			printk = find_printk(tep, addr);
 			if (printk)
 				trace_seq_puts(s, printk->printk);
 			else
@@ -4021,7 +4021,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 	case TEP_PRINT_HEX_STR:
 		if (arg->hex.field->type == TEP_PRINT_DYNAMIC_ARRAY) {
 			unsigned long offset;
-			offset = tep_read_number(pevent,
+			offset = tep_read_number(tep,
 				data + arg->hex.field->dynarray.field->offset,
 				arg->hex.field->dynarray.field->size);
 			hex = data + (offset & 0xffff);
@@ -4052,7 +4052,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 			unsigned long offset;
 			struct tep_format_field *field =
 				arg->int_array.field->dynarray.field;
-			offset = tep_read_number(pevent,
+			offset = tep_read_number(tep,
 						 data + field->offset,
 						 field->size);
 			num = data + (offset & 0xffff);
@@ -4103,7 +4103,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 			f = tep_find_any_field(event, arg->string.string);
 			arg->string.offset = f->offset;
 		}
-		str_offset = tep_data2host4(pevent, *(unsigned int *)(data + arg->string.offset));
+		str_offset = tep_data2host4(tep, *(unsigned int *)(data + arg->string.offset));
 		str_offset &= 0xffff;
 		print_str_to_seq(s, format, len_arg, ((char *)data) + str_offset);
 		break;
@@ -4121,10 +4121,10 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 			f = tep_find_any_field(event, arg->bitmask.bitmask);
 			arg->bitmask.offset = f->offset;
 		}
-		bitmask_offset = tep_data2host4(pevent, *(unsigned int *)(data + arg->bitmask.offset));
+		bitmask_offset = tep_data2host4(tep, *(unsigned int *)(data + arg->bitmask.offset));
 		bitmask_size = bitmask_offset >> 16;
 		bitmask_offset &= 0xffff;
-		print_bitmask_to_seq(pevent, s, format, len_arg,
+		print_bitmask_to_seq(tep, s, format, len_arg,
 				     data + bitmask_offset, bitmask_size);
 		break;
 	}
@@ -4256,7 +4256,7 @@ static void free_args(struct tep_print_arg *args)
 
 static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, struct tep_event *event)
 {
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	struct tep_format_field *field, *ip_field;
 	struct tep_print_arg *args, *arg, **next;
 	unsigned long long ip, val;
@@ -4264,8 +4264,8 @@ static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, s
 	void *bptr;
 	int vsize = 0;
 
-	field = pevent->bprint_buf_field;
-	ip_field = pevent->bprint_ip_field;
+	field = tep->bprint_buf_field;
+	ip_field = tep->bprint_ip_field;
 
 	if (!field) {
 		field = tep_find_field(event, "buf");
@@ -4278,11 +4278,11 @@ static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, s
 			do_warning_event(event, "can't find ip field for binary printk");
 			return NULL;
 		}
-		pevent->bprint_buf_field = field;
-		pevent->bprint_ip_field = ip_field;
+		tep->bprint_buf_field = field;
+		tep->bprint_ip_field = ip_field;
 	}
 
-	ip = tep_read_number(pevent, data + ip_field->offset, ip_field->size);
+	ip = tep_read_number(tep, data + ip_field->offset, ip_field->size);
 
 	/*
 	 * The first arg is the IP pointer.
@@ -4360,7 +4360,7 @@ static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, s
 					vsize = 4;
 					break;
 				case 1:
-					vsize = pevent->long_size;
+					vsize = tep->long_size;
 					break;
 				case 2:
 					vsize = 8;
@@ -4377,7 +4377,7 @@ static struct tep_print_arg *make_bprint_args(char *fmt, void *data, int size, s
 				/* the pointers are always 4 bytes aligned */
 				bptr = (void *)(((unsigned long)bptr + 3) &
 						~3);
-				val = tep_read_number(pevent, bptr, vsize);
+				val = tep_read_number(tep, bptr, vsize);
 				bptr += vsize;
 				arg = alloc_arg();
 				if (!arg) {
@@ -4434,13 +4434,13 @@ static char *
 get_bprint_format(void *data, int size __maybe_unused,
 		  struct tep_event *event)
 {
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	unsigned long long addr;
 	struct tep_format_field *field;
 	struct printk_map *printk;
 	char *format;
 
-	field = pevent->bprint_fmt_field;
+	field = tep->bprint_fmt_field;
 
 	if (!field) {
 		field = tep_find_field(event, "fmt");
@@ -4448,12 +4448,12 @@ get_bprint_format(void *data, int size __maybe_unused,
 			do_warning_event(event, "can't find format field for binary printk");
 			return NULL;
 		}
-		pevent->bprint_fmt_field = field;
+		tep->bprint_fmt_field = field;
 	}
 
-	addr = tep_read_number(pevent, data + field->offset, field->size);
+	addr = tep_read_number(tep, data + field->offset, field->size);
 
-	printk = find_printk(pevent, addr);
+	printk = find_printk(tep, addr);
 	if (!printk) {
 		if (asprintf(&format, "%%pf: (NO FORMAT FOUND at %llx)\n", addr) < 0)
 			return NULL;
@@ -4835,13 +4835,13 @@ void tep_print_field(struct trace_seq *s, void *data,
 {
 	unsigned long long val;
 	unsigned int offset, len, i;
-	struct tep_handle *pevent = field->event->tep;
+	struct tep_handle *tep = field->event->tep;
 
 	if (field->flags & TEP_FIELD_IS_ARRAY) {
 		offset = field->offset;
 		len = field->size;
 		if (field->flags & TEP_FIELD_IS_DYNAMIC) {
-			val = tep_read_number(pevent, data + offset, len);
+			val = tep_read_number(tep, data + offset, len);
 			offset = val;
 			len = offset >> 16;
 			offset &= 0xffff;
@@ -4861,7 +4861,7 @@ void tep_print_field(struct trace_seq *s, void *data,
 			field->flags &= ~TEP_FIELD_IS_STRING;
 		}
 	} else {
-		val = tep_read_number(pevent, data + field->offset,
+		val = tep_read_number(tep, data + field->offset,
 				      field->size);
 		if (field->flags & TEP_FIELD_IS_POINTER) {
 			trace_seq_printf(s, "0x%llx", val);
@@ -4910,7 +4910,7 @@ void tep_print_fields(struct trace_seq *s, void *data,
 
 static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_event *event)
 {
-	struct tep_handle *pevent = event->tep;
+	struct tep_handle *tep = event->tep;
 	struct tep_print_fmt *print_fmt = &event->print_fmt;
 	struct tep_print_arg *arg = print_fmt->args;
 	struct tep_print_arg *args = NULL;
@@ -5002,7 +5002,7 @@ static void pretty_print(struct trace_seq