[GIT PULL 00/19] perf/core improvements and fixes

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit 06466212a69c0511c5dcff7363c207ffc8913731:

  Merge tag 'perf-core-for-mingo-20160224' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-02-25 08:20:56 +0100)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160226

for you to fetch changes up to 1d6c9407d45dd622b277ca9f725da3cc9e95b5de:

  perf trace: Print content of bpf-output event (2016-02-26 19:57:07 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

User visible:

- Show extra line telling no entries below --percent-limit are
  at that --hierarchy level (Namhyung Kim)

- 'perf report/top --hierarchy' assorted alignment fixes (Namhyung Kim)

- Handle empty print fmts in 'perf script -s' i.e. when running
  python or perl scripts (Taeung Song)

- Improve support for bpf-output events in 'perf trace' (Wang Nan)

- Fix parsing of pmu events with empty list of modifiers, this
  cures a perf/core-only regression where '-e intel_pt//' got
  broken (Arnaldo Carvalho de Melo)

Infrastructure:

- Improve missing OpenJDK devel files error message in jvmti
  Makefile (Stephane Eranian)

- Remove duplicated code and needless script_spec__findnew() (Taeung Song)

- Bring perf_default_config to the very beginning at main(), removing
  the need for each subcommand to do this (Wang Nan)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Arnaldo Carvalho de Melo (2):
      perf tools: Use asprintf() for simple string formatting/allocation
      perf tools: Fix parsing of pmu events with empty list of modifiers

Namhyung Kim (10):
      perf hists: Add more helper functions for the hierarchy mode
      perf report: Show message for percent limit on stdio
      perf hists browser: Cleanup hist_browser__update_percent_limit()
      perf hists browser: Show message for percent limit
      perf report: Show message for percent limit on gtk
      perf hists: Fix comparing of dynamic entries
      perf report: Fix indentation of dynamic entries in hierarchy
      perf report: Left align dynamic entries in hierarchy
      perf hists: Fix dynamic entry display in hierarchy
      perf report: Update column width of dynamic entries

Stephane Eranian (1):
      perf jvmti: improve error message in Makefile

Taeung Song (2):
      perf script: Exception handling when the print fmt is empty
      perf script: Remove duplicated code and needless script_spec__findnew()

Wang Nan (4):
      perf config: Bring perf_default_config to the very beginning at main()
      perf tools: Only set filter for tracepoints events
      perf trace: Call bpf__apply_obj_config in 'perf trace'
      perf trace: Print content of bpf-output event

 tools/perf/builtin-diff.c                          |   2 -
 tools/perf/builtin-help.c                          |   2 +-
 tools/perf/builtin-kmem.c                          |   4 +-
 tools/perf/builtin-report.c                        |   2 +-
 tools/perf/builtin-script.c                        |  21 +---
 tools/perf/builtin-top.c                           |   4 +-
 tools/perf/builtin-trace.c                         |  46 +++++++-
 tools/perf/jvmti/Makefile                          |  17 ++-
 tools/perf/perf.c                                  |  16 ++-
 tools/perf/tests/llvm.c                            |   8 --
 tools/perf/ui/browsers/hists.c                     | 128 +++++++++++++++++++--
 tools/perf/ui/gtk/hists.c                          |  11 ++
 tools/perf/ui/hist.c                               |  22 ++++
 tools/perf/ui/stdio/hist.c                         |  49 ++++++--
 tools/perf/util/color.c                            |   5 +-
 tools/perf/util/data-convert-bt.c                  |   2 +-
 tools/perf/util/evlist.c                           |   3 +
 tools/perf/util/help-unknown-cmd.c                 |   5 +-
 tools/perf/util/hist.c                             |  48 +++++++-
 tools/perf/util/hist.h                             |   4 +
 tools/perf/util/parse-events.y                     |   6 +-
 .../perf/util/scripting-engines/trace-event-perl.c |   3 +
 .../util/scripting-engines/trace-event-python.c    |   3 +
 tools/perf/util/sort.c                             |  30 ++++-
 tools/perf/util/sort.h                             |   1 +
 25 files changed, 363 insertions(+), 79 deletions(-)

[PATCH 01/19] perf tools: Use asprintf() for simple string formatting/allocation

[Arnaldo Carvalho de Melo]

From: Arnaldo Carvalho de Melo <acme@redhat.com>

No need to use strbuf there, its just a simple alloc+formatting, which
asprintf does just fine.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-6q6cxfhk8c8ypg3tfpo0i2iy@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/perf.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index 144047c396f0..f6321194937f 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -454,11 +454,12 @@ static void handle_internal_command(int argc, const char **argv)
 
 static void execv_dashed_external(const char **argv)
 {
-	struct strbuf cmd = STRBUF_INIT;
+	char *cmd;
 	const char *tmp;
 	int status;
 
-	strbuf_addf(&cmd, "perf-%s", argv[0]);
+	if (asprintf(&cmd, "perf-%s", argv[0]) < 0)
+		goto do_die;
 
 	/*
 	 * argv[0] must be the perf command, but the argv array
@@ -467,7 +468,7 @@ static void execv_dashed_external(const char **argv)
 	 * restore it on error.
 	 */
 	tmp = argv[0];
-	argv[0] = cmd.buf;
+	argv[0] = cmd;
 
 	/*
 	 * if we fail because the command is not found, it is
@@ -475,15 +476,16 @@ static void execv_dashed_external(const char **argv)
 	 */
 	status = run_command_v_opt(argv, 0);
 	if (status != -ERR_RUN_COMMAND_EXEC) {
-		if (IS_RUN_COMMAND_ERR(status))
+		if (IS_RUN_COMMAND_ERR(status)) {
+do_die:
 			die("unable to run '%s'", argv[0]);
+		}
 		exit(-status);
 	}
 	errno = ENOENT; /* as if we called execvp */
 
 	argv[0] = tmp;
-
-	strbuf_release(&cmd);
+	zfree(&cmd);
 }
 
 static int run_argv(int *argcp, const char ***argv)
-- 
2.5.0

[PATCH 02/19] perf jvmti: improve error message in Makefile

[Arnaldo Carvalho de Melo]

From: Stephane Eranian <eranian@google.com>

This patch improves the error message given by jvmti Makefile when the
alternatives command cannot be found. It now suggests the user locates
the root of their Java installation and pass it with JDIR=

Signed-off-by: Stephane Eranian <eranian@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1456378056-18812-1-git-send-email-eranian@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/jvmti/Makefile | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/tools/perf/jvmti/Makefile b/tools/perf/jvmti/Makefile
index 0277a64b391b..5ce61a1bda9c 100644
--- a/tools/perf/jvmti/Makefile
+++ b/tools/perf/jvmti/Makefile
@@ -35,12 +35,21 @@ SOLIBEXT=so
 
 # The following works at least on fedora 23, you may need the next
 # line for other distros.
-ifeq (,$(wildcard /usr/sbin/update-java-alternatives))
-JDIR=$(shell alternatives --display java | tail -1 | cut -d' ' -f 5 | sed 's%/jre/bin/java.%%g')
-else
+ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
 JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | cut -d ' ' -f 3)
+else
+  ifneq (,$(wildcard /usr/sbin/alternatives))
+    JDIR=$(shell alternatives --display java | tail -1 | cut -d' ' -f 5 | sed 's%/jre/bin/java.%%g')
+  endif
 endif
-
+ifndef JDIR
+$(error Could not find alternatives command, you need to set JDIR= to point to the root of your Java directory)
+else
+  ifeq (,$(wildcard $(JDIR)/include/jvmti.h))
+  $(error the openjdk development package appears to me missing, install and try again)
+  endif
+endif
+$(info Using Java from $(JDIR))
 # -lrt required in 32-bit mode for clock_gettime()
 LIBS=-lelf -lrt
 INCDIR=-I $(JDIR)/include -I $(JDIR)/include/linux
-- 
2.5.0

[PATCH 03/19] perf tools: Fix parsing of pmu events with empty list of modifiers

[Arnaldo Carvalho de Melo]

From: Arnaldo Carvalho de Melo <acme@redhat.com>

In 1d55e8ef340d ("perf tools: Introduce opt_event_config nonterminal") I
removed the unconditional "'/' '/'" for pmu events such as
"intel_pt//" but forgot to use opt_event_config where it expected some
event_config, oops. Fix it.

Noticed when trying to use:

  # perf record -e intel_pt// -a sleep 1
  event syntax error: 'intel_pt//'
                               \___ parser error
  Run 'perf list' for a list of valid events

   Usage: perf record [<options>] [<command>]
      or: perf record [<options>] -- <command> [<options>]

      -e, --event <event>   event selector. use 'perf list' to list available events
  #

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Fixes: 1d55e8ef340d ("perf tools: Introduce opt_event_config nonterminal")
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/parse-events.y | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index d1fbcabbe70d..85c44ba79cad 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -217,14 +217,14 @@ event_def: event_pmu |
 	   event_bpf_file
 
 event_pmu:
-PE_NAME '/' event_config '/'
+PE_NAME opt_event_config
 {
 	struct parse_events_evlist *data = _data;
 	struct list_head *list;
 
 	ALLOC_LIST(list);
-	ABORT_ON(parse_events_add_pmu(data, list, $1, $3));
-	parse_events_terms__delete($3);
+	ABORT_ON(parse_events_add_pmu(data, list, $1, $2));
+	parse_events_terms__delete($2);
 	$$ = list;
 }
 |
-- 
2.5.0

[PATCH 04/19] perf script: Exception handling when the print fmt is empty

[Arnaldo Carvalho de Melo]

From: Taeung Song <treeze.taeung@gmail.com>

After collecting samples for events 'syscalls:', perf-script with python
script doesn't occasionally work generating a segmentation fault.

The reason is that the print fmt is empty and a value of
event->print_fmt.args is NULL, so dereferencing the null pointer results
in a segmentation fault i.e.:

    # perf record -e syscalls:*
    # perf script -g python
    # perf script -s perf-script.py

    in trace_begin
    syscalls__sys_enter_brk  3 79841.832099154  3777 test.sh  syscall_nr=12, brk=0

    ... (omitted) ...

    Segmentation fault (core dumped)

For example, a format of sys_enter_getuid() hasn't
print fmt as below.

    # cat /sys/kernel/debug/tracing/events/syscalls/sys_enter_getuid/format
    name: sys_enter_getuid
    ID: 188
    format:
            field:unsigned short common_type;         offset:0; size:2; signed:0;
            field:unsigned char common_flags;         offset:2; size:1; signed:0;
            field:unsigned char common_preempt_count; offset:3; size:1; signed:0;
            field:int common_pid;                     offset:4; size:4; signed:1;
            field:int syscall_nr;                     offset:8; size:4; signed:1;

    print fmt: ""

So add exception handling to avoid this problem.

Signed-off-by: Taeung Song <treeze.taeung@gmail.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1456413179-12331-1-git-send-email-treeze.taeung@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/scripting-engines/trace-event-perl.c   | 3 +++
 tools/perf/util/scripting-engines/trace-event-python.c | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/tools/perf/util/scripting-engines/trace-event-perl.c b/tools/perf/util/scripting-engines/trace-event-perl.c
index 544509c159ce..b3aabc0d4eb0 100644
--- a/tools/perf/util/scripting-engines/trace-event-perl.c
+++ b/tools/perf/util/scripting-engines/trace-event-perl.c
@@ -187,6 +187,9 @@ static void define_event_symbols(struct event_format *event,
 				 const char *ev_name,
 				 struct print_arg *args)
 {
+	if (args == NULL)
+		return;
+
 	switch (args->type) {
 	case PRINT_NULL:
 		break;
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index d72fafc1c800..309d90fa7698 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -205,6 +205,9 @@ static void define_event_symbols(struct event_format *event,
 				 const char *ev_name,
 				 struct print_arg *args)
 {
+	if (args == NULL)
+		return;
+
 	switch (args->type) {
 	case PRINT_NULL:
 		break;
-- 
2.5.0

[PATCH 05/19] perf script: Remove duplicated code and needless script_spec__findnew()

[Arnaldo Carvalho de Melo]

From: Taeung Song <treeze.taeung@gmail.com>

script_spec_register() called two functions: script_spec__find() and
script_spec__findnew().  But this way script_spec__find() gets called
two times, directly and via script_spec__findnew().

So remove script_spec__findnew() and make script_spec_register() only
call once script_spec__find().

Signed-off-by: Taeung Song <treeze.taeung@gmail.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1456413190-12378-1-git-send-email-treeze.taeung@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-script.c | 21 +++------------------
 1 file changed, 3 insertions(+), 18 deletions(-)

diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index ec4fbd410a4b..57f9a7e7f7d3 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -1212,23 +1212,6 @@ static struct script_spec *script_spec__find(const char *spec)
 	return NULL;
 }
 
-static struct script_spec *script_spec__findnew(const char *spec,
-						struct scripting_ops *ops)
-{
-	struct script_spec *s = script_spec__find(spec);
-
-	if (s)
-		return s;
-
-	s = script_spec__new(spec, ops);
-	if (!s)
-		return NULL;
-
-	script_spec__add(s);
-
-	return s;
-}
-
 int script_spec_register(const char *spec, struct scripting_ops *ops)
 {
 	struct script_spec *s;
@@ -1237,9 +1220,11 @@ int script_spec_register(const char *spec, struct scripting_ops *ops)
 	if (s)
 		return -1;
 
-	s = script_spec__findnew(spec, ops);
+	s = script_spec__new(spec, ops);
 	if (!s)
 		return -1;
+	else
+		script_spec__add(s);
 
 	return 0;
 }
-- 
2.5.0

[PATCH 06/19] perf hists: Add more helper functions for the hierarchy mode

[Arnaldo Carvalho de Melo]

From: Namhyung Kim <namhyung@kernel.org>

The hists__overhead_width() is to calculate width occupied by the
overhead (and others) columns before the sort columns.

The hist_entry__has_hiearchy_children() is to check whether an entry has
lower entries (children) in the hierarchy to be shown in the output.
This means the children should not be filtered out and above the percent
limit.

These two functions will be used to show information when all children
of an entry is omitted by the percent limit (or filter).

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1456488800-28124-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/ui/hist.c   | 22 ++++++++++++++++++++++
 tools/perf/util/hist.c | 25 +++++++++++++++++++++++++
 tools/perf/util/hist.h |  3 +++
 3 files changed, 50 insertions(+)

diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
index edbf854e8e1c..7c0585c146e1 100644
--- a/tools/perf/ui/hist.c
+++ b/tools/perf/ui/hist.c
@@ -643,6 +643,28 @@ unsigned int hists__sort_list_width(struct hists *hists)
 	return ret;
 }
 
+unsigned int hists__overhead_width(struct hists *hists)
+{
+	struct perf_hpp_fmt *fmt;
+	int ret = 0;
+	bool first = true;
+	struct perf_hpp dummy_hpp;
+
+	hists__for_each_format(hists, fmt) {
+		if (perf_hpp__is_sort_entry(fmt) || perf_hpp__is_dynamic_entry(fmt))
+			break;
+
+		if (first)
+			first = false;
+		else
+			ret += 2;
+
+		ret += fmt->width(fmt, &dummy_hpp, hists_to_evsel(hists));
+	}
+
+	return ret;
+}
+
 void perf_hpp__reset_width(struct perf_hpp_fmt *fmt, struct hists *hists)
 {
 	if (perf_hpp__is_sort_entry(fmt))
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 1c530428e087..e71691977a95 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -1582,6 +1582,31 @@ struct rb_node *rb_hierarchy_prev(struct rb_node *node)
 	return &he->rb_node;
 }
 
+bool hist_entry__has_hierarchy_children(struct hist_entry *he, float limit)
+{
+	struct rb_node *node;
+	struct hist_entry *child;
+	float percent;
+
+	if (he->leaf)
+		return false;
+
+	node = rb_first(&he->hroot_out);
+	child = rb_entry(node, struct hist_entry, rb_node);
+
+	while (node && child->filtered) {
+		node = rb_next(node);
+		child = rb_entry(node, struct hist_entry, rb_node);
+	}
+
+	if (node)
+		percent = hist_entry__get_percent_limit(child);
+	else
+		percent = 0;
+
+	return node && percent >= limit;
+}
+
 static void hists__remove_entry_filter(struct hists *hists, struct hist_entry *h,
 				       enum hist_filter filter)
 {
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 722aa447f705..da3e7b6e4615 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -410,6 +410,7 @@ static inline int script_browse(const char *script_opt __maybe_unused)
 #endif
 
 unsigned int hists__sort_list_width(struct hists *hists);
+unsigned int hists__overhead_width(struct hists *hists);
 
 void hist__account_cycles(struct branch_stack *bs, struct addr_location *al,
 			  struct perf_sample *sample, bool nonany_branch_mode);
@@ -439,4 +440,6 @@ static inline struct rb_node *rb_hierarchy_next(struct rb_node *node)
 
 #define HIERARCHY_INDENT  3
 
+bool hist_entry__has_hierarchy_children(struct hist_entry *he, float limit);
+
 #endif	/* __PERF_HIST_H */
-- 
2.5.0

[PATCH 07/19] perf report: Show message for percent limit on stdio

[Arnaldo Carvalho de Melo]

From: Namhyung Kim <namhyung@kernel.org>

When the hierarchy mode is used, some entries might be omiited due to a
percent limit or filter.  In this case the output hierarchy is different
than other entries.  Add an informative message to users about this.

For example, when 4% of percent limit is applied:

Before:
  #       Overhead  Command / Shared Object / Symbol
  # ..............  ..........................................
  #
      49.09%        swapper
         48.67%        [kernel.vmlinux]
            34.42%        [k] intel_idle
      11.51%        firefox
          8.87%        libpthread-2.22.so
             6.60%        [.] __GI___libc_recvmsg
      10.49%        gnome-shell
          4.74%        libc-2.22.so
      10.08%        Xorg
          6.11%        libc-2.22.so
             5.27%        [.] __memcpy_sse2_unaligned
       6.15%        perf

Note that, gnome-shell/libc has no symbols and perf has no dso/symbols.
With that patch the output will look like below:

After:

  #       Overhead  Command / Shared Object / Symbol
  # ..............  ..........................................
  #
      49.09%        swapper
         48.67%        [kernel.vmlinux]
            34.42%        [k] intel_idle
      11.51%        firefox
          8.87%        libpthread-2.22.so
             6.60%        [.] __GI___libc_recvmsg
      10.49%        gnome-shell
          4.74%        libc-2.22.so
                          no entry >= 4.00%
      10.08%        Xorg
          6.11%        libc-2.22.so
             5.27%        [.] __memcpy_sse2_unaligned
       6.15%        perf
                       no entry >= 4.00%

Suggested-and-Tested-by: Arnaldo Carvalho de Melo <acme@kernel.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1456488800-28124-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/ui/stdio/hist.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c
index 435eaaaf2f1d..b3bdfcb245f9 100644
--- a/tools/perf/ui/stdio/hist.c
+++ b/tools/perf/ui/stdio/hist.c
@@ -628,6 +628,7 @@ size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
 	bool first = true;
 	size_t linesz;
 	char *line = NULL;
+	unsigned indent;
 
 	init_rem_hits();
 
@@ -704,6 +705,8 @@ print_entries:
 		goto out;
 	}
 
+	indent = hists__overhead_width(hists) + 4;
+
 	for (nd = rb_first(&hists->entries); nd; nd = __rb_hierarchy_next(nd, HMD_FORCE_CHILD)) {
 		struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
 		float percent;
@@ -720,6 +723,20 @@ print_entries:
 		if (max_rows && ++nr_rows >= max_rows)
 			break;
 
+		/*
+		 * If all children are filtered out or percent-limited,
+		 * display "no entry >= x.xx%" message.
+		 */
+		if (!h->leaf && !hist_entry__has_hierarchy_children(h, min_pcnt)) {
+			int nr_sort = hists->hpp_list->nr_sort_keys;
+
+			print_hierarchy_indent(sep, nr_sort + h->depth + 1, spaces, fp);
+			fprintf(fp, "%*sno entry >= %.2f%%\n", indent, "", min_pcnt);
+
+			if (max_rows && ++nr_rows >= max_rows)
+				break;
+		}
+
 		if (h->ms.map == NULL && verbose > 1) {
 			__map_groups__fprintf_maps(h->thread->mg,
 						   MAP__FUNCTION, fp);
-- 
2.5.0

[PATCH 08/19] perf hists browser: Cleanup hist_browser__update_percent_limit()

[Arnaldo Carvalho de Melo]

From: Namhyung Kim <namhyung@kernel.org>

The previous patch introduced __rb_hierarchy_next() function with
various move direction like HMD_FORCE_CHILD but missed to change using
it some place.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1456488800-28124-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/ui/browsers/hists.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 6bcd7670ce5f..904eaa719eb3 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -2477,12 +2477,7 @@ static void hist_browser__update_percent_limit(struct hist_browser *hb,
 				     min_callchain_hits, &callchain_param);
 
 next:
-		/*
-		 * Tentatively set unfolded so that the rb_hierarchy_next()
-		 * can toggle children of folded entries too.
-		 */
-		he->unfolded = he->has_children;
-		nd = rb_hierarchy_next(nd);
+		nd = __rb_hierarchy_next(nd, HMD_FORCE_CHILD);
 
 		/* force to re-evaluate folding state of callchains */
 		he->init_have_children = false;
-- 
2.5.0

[PATCH 09/19] perf hists browser: Show message for percent limit

[Arnaldo Carvalho de Melo]

From: Namhyung Kim <namhyung@kernel.org>

Like the stdio, it should show messages about omitted hierarchy entries.
Please refer the previous commit for more details.

As it needs to check an entry is omitted or not multiple times, add the
has_no_entry field in the hist entry.

Suggested-and-Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1456488800-28124-4-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/ui/browsers/hists.c | 99 ++++++++++++++++++++++++++++++++++++++++++
 tools/perf/util/hist.c         |  2 +
 tools/perf/util/sort.h         |  1 +
 3 files changed, 102 insertions(+)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 904eaa719eb3..71c6d510390f 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -260,6 +260,9 @@ static int hierarchy_count_rows(struct hist_browser *hb, struct hist_entry *he,
 	if (he->leaf)
 		return callchain__count_rows(&he->sorted_chain);
 
+	if (he->has_no_entry)
+		return 1;
+
 	node = rb_first(&he->hroot_out);
 	while (node) {
 		float percent;
@@ -409,10 +412,18 @@ static bool hist_browser__toggle_fold(struct hist_browser *browser)
 			/* account grand children */
 			if (symbol_conf.report_hierarchy)
 				browser->b.nr_entries += child_rows - he->nr_rows;
+
+			if (!he->leaf && he->nr_rows == 0) {
+				he->has_no_entry = true;
+				he->nr_rows = 1;
+			}
 		} else {
 			if (symbol_conf.report_hierarchy)
 				browser->b.nr_entries -= child_rows - he->nr_rows;
 
+			if (he->has_no_entry)
+				he->has_no_entry = false;
+
 			he->nr_rows = 0;
 		}
 
@@ -545,6 +556,12 @@ __hist_browser__set_folding(struct hist_browser *browser, bool unfold)
 			browser->nr_hierarchy_entries++;
 		if (he->leaf)
 			browser->nr_callchain_rows += he->nr_rows;
+		else if (unfold && !hist_entry__has_hierarchy_children(he, browser->min_pcnt)) {
+			browser->nr_hierarchy_entries++;
+			he->has_no_entry = true;
+			he->nr_rows = 1;
+		} else
+			he->has_no_entry = false;
 	}
 }
 
@@ -1412,6 +1429,75 @@ show_callchain:
 	return printed;
 }
 
+static int hist_browser__show_no_entry(struct hist_browser *browser,
+				       unsigned short row,
+				       int level, int nr_sort_keys)
+{
+	int width = browser->b.width;
+	bool current_entry = ui_browser__is_current_entry(&browser->b, row);
+	bool first = true;
+	int column = 0;
+	int ret;
+	struct perf_hpp_fmt *fmt;
+
+	if (current_entry) {
+		browser->he_selection = NULL;
+		browser->selection = NULL;
+	}
+
+	hist_browser__gotorc(browser, row, 0);
+
+	if (current_entry && browser->b.navkeypressed)
+		ui_browser__set_color(&browser->b, HE_COLORSET_SELECTED);
+	else
+		ui_browser__set_color(&browser->b, HE_COLORSET_NORMAL);
+
+	ui_browser__write_nstring(&browser->b, "", level * HIERARCHY_INDENT);
+	width -= level * HIERARCHY_INDENT;
+
+	hists__for_each_format(browser->hists, fmt) {
+		if (perf_hpp__should_skip(fmt, browser->hists) ||
+		    column++ < browser->b.horiz_scroll)
+			continue;
+
+		if (perf_hpp__is_sort_entry(fmt) ||
+		    perf_hpp__is_dynamic_entry(fmt))
+			break;
+
+		ret = fmt->width(fmt, NULL, hists_to_evsel(browser->hists));
+
+		if (first) {
+			/* for folded sign */
+			first = false;
+			ret++;
+		} else {
+			/* space between columns */
+			ret += 2;
+		}
+
+		ui_browser__write_nstring(&browser->b, "", ret);
+		width -= ret;
+	}
+
+	ui_browser__write_nstring(&browser->b, "", nr_sort_keys * HIERARCHY_INDENT);
+	width -= nr_sort_keys * HIERARCHY_INDENT;
+
+	if (column >= browser->b.horiz_scroll) {
+		char buf[32];
+
+		ret = snprintf(buf, sizeof(buf), "no entry >= %.2f%%", browser->min_pcnt);
+		ui_browser__printf(&browser->b, "  %s", buf);
+		width -= ret + 2;
+	}
+
+	/* The scroll bar isn't being used */
+	if (!browser->b.navkeypressed)
+		width += 1;
+
+	ui_browser__write_nstring(&browser->b, "", width);
+	return 1;
+}
+
 static int advance_hpp_check(struct perf_hpp *hpp, int inc)
 {
 	advance_hpp(hpp, inc);
@@ -1575,6 +1661,14 @@ static unsigned int hist_browser__refresh(struct ui_browser *browser)
 			row += hist_browser__show_hierarchy_entry(hb, h, row,
 								  h->depth,
 								  nr_sort);
+			if (row == browser->rows)
+				break;
+
+			if (h->has_no_entry) {
+				hist_browser__show_no_entry(hb, row, h->depth,
+							    nr_sort);
+				row++;
+			}
 		} else {
 			row += hist_browser__show_entry(hb, h, row);
 		}
@@ -2461,6 +2555,11 @@ static void hist_browser__update_percent_limit(struct hist_browser *hb,
 	while ((nd = hists__filter_entries(nd, hb->min_pcnt)) != NULL) {
 		he = rb_entry(nd, struct hist_entry, rb_node);
 
+		if (he->has_no_entry) {
+			he->has_no_entry = false;
+			he->nr_rows = 0;
+		}
+
 		if (!he->leaf || !symbol_conf.use_callchain)
 			goto next;
 
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index e71691977a95..75dc41d2dca9 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -1625,6 +1625,7 @@ static void hists__remove_entry_filter(struct hists *hists, struct hist_entry *h
 
 			/* force fold unfiltered entry for simplicity */
 			parent->unfolded = false;
+			parent->has_no_entry = false;
 			parent->row_offset = 0;
 			parent->nr_rows = 0;
 next:
@@ -1637,6 +1638,7 @@ next:
 
 	/* force fold unfiltered entry for simplicity */
 	h->unfolded = false;
+	h->has_no_entry = false;
 	h->row_offset = 0;
 	h->nr_rows = 0;
 
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index a8d53ffe0916..25a5529a94e4 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -117,6 +117,7 @@ struct hist_entry {
 			bool	init_have_children;
 			bool	unfolded;
 			bool	has_children;
+			bool	has_no_entry;
 		};
 	};
 	char			*srcline;
-- 
2.5.0

[PATCH 10/19] perf report: Show message for percent limit on gtk

[Arnaldo Carvalho de Melo]

From: Namhyung Kim <namhyung@kernel.org>

Like the stdio, it should show messages about omitted hierarchy
entries.  Please refer the previous commit for more details.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1456488800-28124-5-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/ui/gtk/hists.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/tools/perf/ui/gtk/hists.c b/tools/perf/ui/gtk/hists.c
index 7f343339eae7..a5758fdfbe1f 100644
--- a/tools/perf/ui/gtk/hists.c
+++ b/tools/perf/ui/gtk/hists.c
@@ -449,6 +449,17 @@ static void perf_gtk__add_hierarchy_entries(struct hists *hists,
 			perf_gtk__add_hierarchy_entries(hists, &he->hroot_out,
 							store, &iter, hpp,
 							min_pcnt);
+
+			if (!hist_entry__has_hierarchy_children(he, min_pcnt)) {
+				char buf[32];
+				GtkTreeIter child;
+
+				snprintf(buf, sizeof(buf), "no entry >= %.2f%%",
+					 min_pcnt);
+
+				gtk_tree_store_append(store, &child, &iter);
+				gtk_tree_store_set(store, &child, col_idx, buf, -1);
+			}
 		}
 
 		if (symbol_conf.use_callchain && he->leaf) {
-- 
2.5.0

[PATCH 11/19] perf hists: Fix comparing of dynamic entries

[Arnaldo Carvalho de Melo]

From: Namhyung Kim <namhyung@kernel.org>

When hist_entry__cmp() and hist_entry__collapse() are called, they
should check if the dynamic entry is comparing matching hists only.

Otherwise it might access different hists resulting in incorrect output.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1456512767-1164-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/hist.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 75dc41d2dca9..cc849d326211 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -1002,6 +1002,10 @@ hist_entry__cmp(struct hist_entry *left, struct hist_entry *right)
 	int64_t cmp = 0;
 
 	hists__for_each_sort_list(hists, fmt) {
+		if (perf_hpp__is_dynamic_entry(fmt) &&
+		    !perf_hpp__defined_dynamic_entry(fmt, hists))
+			continue;
+
 		cmp = fmt->cmp(fmt, left, right);
 		if (cmp)
 			break;
@@ -1018,6 +1022,10 @@ hist_entry__collapse(struct hist_entry *left, struct hist_entry *right)
 	int64_t cmp = 0;
 
 	hists__for_each_sort_list(hists, fmt) {
+		if (perf_hpp__is_dynamic_entry(fmt) &&
+		    !perf_hpp__defined_dynamic_entry(fmt, hists))
+			continue;
+
 		cmp = fmt->collapse(fmt, left, right);
 		if (cmp)
 			break;
-- 
2.5.0

[PATCH 12/19] perf report: Fix indentation of dynamic entries in hierarchy

[Arnaldo Carvalho de Melo]

From: Namhyung Kim <namhyung@kernel.org>

When dynamic entries are used in the hierarchy mode with multiple
events, the output might not be aligned properly.  In the hierarchy
mode, the each sort column is indented using total number of sort keys.
So it keeps track of number of sort keys when adding them.  However
a dynamic sort key can be added more than once when multiple events have
same field names.  This results in unnecessarily long indentation in the
output.

For example perf kmem records following events:

  $ perf evlist --trace-fields -i perf.data.kmem
  kmem:kmalloc: trace_fields: call_site,ptr,bytes_req,bytes_alloc,gfp_flags
  kmem:kmalloc_node: trace_fields: call_site,ptr,bytes_req,bytes_alloc,gfp_flags,node
  kmem:kfree: trace_fields: call_site,ptr
  kmem:kmem_cache_alloc: trace_fields: call_site,ptr,bytes_req,bytes_alloc,gfp_flags
  kmem:kmem_cache_alloc_node: trace_fields: call_site,ptr,bytes_req,bytes_alloc,gfp_flags,node
  kmem:kmem_cache_free: trace_fields: call_site,ptr
  kmem:mm_page_alloc: trace_fields: page,order,gfp_flags,migratetype
  kmem:mm_page_free: trace_fields: page,order

As you can see, many field names shared between kmem events.  So adding
'ptr' dynamic sort key alone will set nr_sort_keys to 6.  And this adds
many unnecessary spaces between columns.

Before:

  $ perf report -i perf.data.kmem --hierarchy -s ptr -g none --stdio
  ...
  #                Overhead                 ptr
  # .......................  ...................................
  #
      99.89%                 0xffff8803ffb79720
       0.06%                 0xffff8803d228a000
       0.03%                 0xffff8803f7678f00
       0.00%                 0xffff880401dc5280
       0.00%                 0xffff880406172380
       0.00%                 0xffff8803ffac3a00
       0.00%                 0xffff8803ffac1600

After:

  # Overhead                 ptr
  # ........  ....................
  #
      99.89%  0xffff8803ffb79720
       0.06%  0xffff8803d228a000
       0.03%  0xffff8803f7678f00
       0.00%  0xffff880401dc5280
       0.00%  0xffff880406172380
       0.00%  0xffff8803ffac3a00
       0.00%  0xffff8803ffac1600

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1456512767-1164-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/ui/browsers/hists.c |  6 +++---
 tools/perf/ui/stdio/hist.c     |  6 +++---
 tools/perf/util/hist.h         |  1 +
 tools/perf/util/sort.c         | 19 +++++++++++++++++++
 4 files changed, 26 insertions(+), 6 deletions(-)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 71c6d510390f..5f74c6723c53 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1547,7 +1547,7 @@ static int hists_browser__scnprintf_hierarchy_headers(struct hist_browser *brows
 	struct perf_hpp_fmt *fmt;
 	size_t ret = 0;
 	int column = 0;
-	int nr_sort_keys = hists->hpp_list->nr_sort_keys;
+	int nr_sort_keys = hists->nr_sort_keys;
 	bool first = true;
 
 	ret = scnprintf(buf, size, " ");
@@ -1632,7 +1632,7 @@ static unsigned int hist_browser__refresh(struct ui_browser *browser)
 	u16 header_offset = 0;
 	struct rb_node *nd;
 	struct hist_browser *hb = container_of(browser, struct hist_browser, b);
-	int nr_sort = hb->hists->hpp_list->nr_sort_keys;
+	int nr_sort = hb->hists->nr_sort_keys;
 
 	if (hb->show_headers) {
 		hist_browser__show_headers(hb);
@@ -1969,7 +1969,7 @@ static int hist_browser__fprintf(struct hist_browser *browser, FILE *fp)
 	struct rb_node *nd = hists__filter_entries(rb_first(browser->b.entries),
 						   browser->min_pcnt);
 	int printed = 0;
-	int nr_sort = browser->hists->hpp_list->nr_sort_keys;
+	int nr_sort = browser->hists->nr_sort_keys;
 
 	while (nd) {
 		struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c
index b3bdfcb245f9..5733d6c196be 100644
--- a/tools/perf/ui/stdio/hist.c
+++ b/tools/perf/ui/stdio/hist.c
@@ -495,7 +495,7 @@ static int hist_entry__fprintf(struct hist_entry *he, size_t size,
 		size = hpp.size = bfsz;
 
 	if (symbol_conf.report_hierarchy) {
-		int nr_sort = hists->hpp_list->nr_sort_keys;
+		int nr_sort = hists->nr_sort_keys;
 
 		return hist_entry__hierarchy_fprintf(he, &hpp, nr_sort,
 						     hists, fp);
@@ -529,7 +529,7 @@ static int print_hierarchy_header(struct hists *hists, struct perf_hpp *hpp,
 	unsigned header_width = 0;
 	struct perf_hpp_fmt *fmt;
 
-	nr_sort = hists->hpp_list->nr_sort_keys;
+	nr_sort = hists->nr_sort_keys;
 
 	/* preserve max indent depth for column headers */
 	print_hierarchy_indent(sep, nr_sort, spaces, fp);
@@ -728,7 +728,7 @@ print_entries:
 		 * display "no entry >= x.xx%" message.
 		 */
 		if (!h->leaf && !hist_entry__has_hierarchy_children(h, min_pcnt)) {
-			int nr_sort = hists->hpp_list->nr_sort_keys;
+			int nr_sort = hists->nr_sort_keys;
 
 			print_hierarchy_indent(sep, nr_sort + h->depth + 1, spaces, fp);
 			fprintf(fp, "%*sno entry >= %.2f%%\n", indent, "", min_pcnt);
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index da3e7b6e4615..da5e50586bfd 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -78,6 +78,7 @@ struct hists {
 	u16			col_len[HISTC_NR_COLS];
 	int			socket_filter;
 	struct perf_hpp_list	*hpp_list;
+	int			nr_sort_keys;
 };
 
 struct hist_entry_iter;
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 6bee8bdfb91b..2beb7a6360a4 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -2633,6 +2633,9 @@ out:
 int setup_sorting(struct perf_evlist *evlist)
 {
 	int err;
+	struct hists *hists;
+	struct perf_evsel *evsel;
+	struct perf_hpp_fmt *fmt;
 
 	err = __setup_sorting(evlist);
 	if (err < 0)
@@ -2644,6 +2647,22 @@ int setup_sorting(struct perf_evlist *evlist)
 			return err;
 	}
 
+	evlist__for_each(evlist, evsel) {
+		hists = evsel__hists(evsel);
+		hists->nr_sort_keys = perf_hpp_list.nr_sort_keys;
+
+		/*
+		 * If dynamic entries were used, it might add multiple
+		 * entries to each evsel for a single field name.  Set
+		 * actual number of sort keys for each hists.
+		 */
+		perf_hpp_list__for_each_sort_list(&perf_hpp_list, fmt) {
+			if (perf_hpp__is_dynamic_entry(fmt) &&
+			    !perf_hpp__defined_dynamic_entry(fmt, hists))
+				hists->nr_sort_keys--;
+		}
+	}
+
 	reset_dimensions();
 
 	/*
-- 
2.5.0

[PATCH 13/19] perf report: Left align dynamic entries in hierarchy

[Arnaldo Carvalho de Melo]

From: Namhyung Kim <namhyung@kernel.org>

The dynamic entries are right-aligned unlike other entries since it
usually has numeric value.  But for the hierarchy mode, left alignment
is more appropriate IMHO.  Also trim spaces on the left so that we can
easily identify the hierarchy.

Before:

  $ perf report --hierarchy -i perf.data.kmem -s gfp_flags,ptr,bytes_req --stdio -g none
  ...
  #
  #       Overhead                                        gfp_flags /                ptr /          bytes_req
  # ..............  .................................................................................................
  #
      91.67%                   GFP_ATOMIC|GFP_NOWARN|GFP_NOMEMALLOC
         37.50%        0xffff8803f7669400
            37.50%                       448
          8.33%        0xffff8803f766be00
             8.33%                        96
          4.17%        0xffff8800d156dc00
             4.17%                       704

After:

  #       Overhead  gfp_flags / ptr / bytes_req
  # ..............  ....................................
  #
      91.67%        GFP_ATOMIC|GFP_NOWARN|GFP_NOMEMALLOC
         37.50%        0xffff8803f7669400
            37.50%        448
          8.33%        0xffff8803f766be00
             8.33%        96
          4.17%        0xffff8800d156dc00
             4.17%        704

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1456512767-1164-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/ui/browsers/hists.c | 16 ++++++++++++++--
 tools/perf/ui/stdio/hist.c     | 28 +++++++++++++++++++---------
 2 files changed, 33 insertions(+), 11 deletions(-)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 5f74c6723c53..5ffffcb1e3c5 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1400,8 +1400,13 @@ static int hist_browser__show_hierarchy_entry(struct hist_browser *browser,
 		if (fmt->color) {
 			width -= fmt->color(fmt, &hpp, entry);
 		} else {
+			int i = 0;
+
 			width -= fmt->entry(fmt, &hpp, entry);
-			ui_browser__printf(&browser->b, "%s", s);
+			ui_browser__printf(&browser->b, "%s", ltrim(s));
+
+			while (isspace(s[i++]))
+				width++;
 		}
 	}
 
@@ -1576,6 +1581,8 @@ static int hists_browser__scnprintf_hierarchy_headers(struct hist_browser *brows
 		return ret;
 
 	hists__for_each_format(hists, fmt) {
+		char *start;
+
 		if (!perf_hpp__is_sort_entry(fmt) && !perf_hpp__is_dynamic_entry(fmt))
 			continue;
 		if (perf_hpp__should_skip(fmt, hists))
@@ -1593,7 +1600,12 @@ static int hists_browser__scnprintf_hierarchy_headers(struct hist_browser *brows
 		dummy_hpp.buf[ret] = '\0';
 		rtrim(dummy_hpp.buf);
 
-		ret = strlen(dummy_hpp.buf);
+		start = ltrim(dummy_hpp.buf);
+		ret = strlen(start);
+
+		if (start != dummy_hpp.buf)
+			memmove(dummy_hpp.buf, start, ret + 1);
+
 		if (advance_hpp_check(&dummy_hpp, ret))
 			break;
 	}
diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c
index 5733d6c196be..6d06fbb365b6 100644
--- a/tools/perf/ui/stdio/hist.c
+++ b/tools/perf/ui/stdio/hist.c
@@ -418,6 +418,7 @@ static int hist_entry__hierarchy_fprintf(struct hist_entry *he,
 	const char *sep = symbol_conf.field_sep;
 	struct perf_hpp_fmt *fmt;
 	char *buf = hpp->buf;
+	size_t size = hpp->size;
 	int ret, printed = 0;
 	bool first = true;
 
@@ -457,6 +458,11 @@ static int hist_entry__hierarchy_fprintf(struct hist_entry *he,
 				(nr_sort_key - 1) * HIERARCHY_INDENT + 2, "");
 	advance_hpp(hpp, ret);
 
+	printed += fprintf(fp, "%s", buf);
+
+	hpp->buf  = buf;
+	hpp->size = size;
+
 	/*
 	 * No need to call hist_entry__snprintf_alignment() since this
 	 * fmt is always the last column in the hierarchy mode.
@@ -467,7 +473,11 @@ static int hist_entry__hierarchy_fprintf(struct hist_entry *he,
 	else
 		fmt->entry(fmt, hpp, he);
 
-	printed += fprintf(fp, "%s\n", buf);
+	/*
+	 * dynamic entries are right-aligned but we want left-aligned
+	 * in the hierarchy mode
+	 */
+	printed += fprintf(fp, "%s\n", ltrim(buf));
 
 	if (symbol_conf.use_callchain && he->leaf) {
 		u64 total = hists__total_period(hists);
@@ -525,6 +535,7 @@ static int print_hierarchy_header(struct hists *hists, struct perf_hpp *hpp,
 {
 	bool first = true;
 	int nr_sort;
+	int depth;
 	unsigned width = 0;
 	unsigned header_width = 0;
 	struct perf_hpp_fmt *fmt;
@@ -558,19 +569,16 @@ static int print_hierarchy_header(struct hists *hists, struct perf_hpp *hpp,
 		if (!first)
 			header_width += fprintf(fp, " / ");
 		else {
-			header_width += fprintf(fp, "%s", sep ?: "  ");
+			fprintf(fp, "%s", sep ?: "  ");
 			first = false;
 		}
 
 		fmt->header(fmt, hpp, hists_to_evsel(hists));
 		rtrim(hpp->buf);
 
-		header_width += fprintf(fp, "%s", hpp->buf);
+		header_width += fprintf(fp, "%s", ltrim(hpp->buf));
 	}
 
-	/* preserve max indent depth for combined sort headers */
-	print_hierarchy_indent(sep, nr_sort, spaces, fp);
-
 	fprintf(fp, "\n# ");
 
 	/* preserve max indent depth for initial dots */
@@ -590,6 +598,7 @@ static int print_hierarchy_header(struct hists *hists, struct perf_hpp *hpp,
 		fprintf(fp, "%.*s", width, dots);
 	}
 
+	depth = 0;
 	hists__for_each_format(hists, fmt) {
 		if (!perf_hpp__is_sort_entry(fmt) && !perf_hpp__is_dynamic_entry(fmt))
 			continue;
@@ -597,15 +606,16 @@ static int print_hierarchy_header(struct hists *hists, struct perf_hpp *hpp,
 			continue;
 
 		width = fmt->width(fmt, hpp, hists_to_evsel(hists));
+		width += depth * HIERARCHY_INDENT;
+
 		if (width > header_width)
 			header_width = width;
+
+		depth++;
 	}
 
 	fprintf(fp, "%s%-.*s", sep ?: "  ", header_width, dots);
 
-	/* preserve max indent depth for dots under sort headers */
-	print_hierarchy_indent(sep, nr_sort, dots, fp);
-
 	fprintf(fp, "\n#\n");
 
 	return 2;
-- 
2.5.0

[PATCH 14/19] perf hists: Fix dynamic entry display in hierarchy

[Arnaldo Carvalho de Melo]

From: Namhyung Kim <namhyung@kernel.org>

When dynamic sort key is used it might not show pretty printed output.
This is because the trace output was not set only for the first dynamic
sort key.  During hierarchy_insert_entry() it missed to pass the
trace_output to dynamic entries.  Also even if it did, only first entry
will have it.  Subsequent entries might set it during collapsing stage
but it's not guaranteed.

Before:

  $ perf report --hierarchy --stdio -s ptr,bytes_req,gfp_flags -g none
  #
  #       Overhead  ptr / bytes_req / gfp_flags
  # ..............  ..........................................
  #
      37.50%        0xffff8803f7669400
         37.50%        448
            37.50%        66080
      10.42%        0xffff8803f766be00
          8.33%        96
             8.33%        66080
          2.08%        512
             2.08%        67280

After:

  #
  #       Overhead  ptr / bytes_req / gfp_flags
  # ..............  ..........................................
  #
      37.50%        0xffff8803f7669400
         37.50%        448
            37.50%        GFP_ATOMIC|GFP_NOWARN|GFP_NOMEMALLOC
      10.42%        0xffff8803f766be00
          8.33%        96
             8.33%        GFP_ATOMIC|GFP_NOWARN|GFP_NOMEMALLOC
          2.08%        512
             2.08%        GFP_KERNEL|GFP_NOWARN|GFP_REPEAT|GFP

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1456512767-1164-4-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/hist.c | 2 +-
 tools/perf/util/sort.c | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index cc849d326211..9b3f582867d6 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -1125,7 +1125,7 @@ static struct hist_entry *hierarchy_insert_entry(struct hists *hists,
 	new->fmt = fmt;
 
 	/* some fields are now passed to 'new' */
-	if (perf_hpp__is_trace_entry(fmt))
+	if (perf_hpp__is_trace_entry(fmt) || perf_hpp__is_dynamic_entry(fmt))
 		he->trace_output = NULL;
 	else
 		new->trace_output = NULL;
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 2beb7a6360a4..d26c6b9fe348 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -1764,6 +1764,9 @@ static int __sort__hde_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 	if (hde->raw_trace)
 		goto raw_field;
 
+	if (!he->trace_output)
+		he->trace_output = get_trace_output(he);
+
 	field = hde->field;
 	namelen = strlen(field->name);
 	str = he->trace_output;
-- 
2.5.0

[PATCH 15/19] perf report: Update column width of dynamic entries

[Arnaldo Carvalho de Melo]

From: Namhyung Kim <namhyung@kernel.org>

The column width of dynamic entries is updated when comparing hist
entries.  However some unique entries can miss the chance to update.  So
move the update to output resort stage to make sure every entry will get
called before display.

To do that, abuse ->sort callback to update the width when the third
argument is NULL.  When resorting entries in normal path, it never be
NULL so it should be fine IMHO.

Before:

  #       Overhead  ptr / bytes_req / gfp_flags
  # ..............  ..........................................
  #
      37.50%        0xffff8803f7669400
         37.50%        448
            37.50%        GFP_ATOMIC|GFP_NOWARN|GFP_NOMEMALLOC
      10.42%        0xffff8803f766be00
          8.33%        96
             8.33%        GFP_ATOMIC|GFP_NOWARN|GFP_NOMEMALLOC
          2.08%        512
             2.08%        GFP_KERNEL|GFP_NOWARN|GFP_REPEAT|GFP   <-- here

After:

  #       Overhead  ptr / bytes_req / gfp_flags
  # ..............  .....................................................
  #
      37.50%        0xffff8803f7669400
         37.50%        448
            37.50%        GFP_ATOMIC|GFP_NOWARN|GFP_NOMEMALLOC
      10.42%        0xffff8803f766be00
          8.33%        96
             8.33%        GFP_ATOMIC|GFP_NOWARN|GFP_NOMEMALLOC
          2.08%        512
             2.08%        GFP_KERNEL|GFP_NOWARN|GFP_REPEAT|GFP_NOMEMALLOC

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1456512767-1164-5-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/hist.c | 11 +++++++++++
 tools/perf/util/sort.c |  8 +++++---
 2 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 9b3f582867d6..4b8b67bc0cd8 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -1371,6 +1371,10 @@ static void hierarchy_insert_output_entry(struct rb_root *root,
 
 	rb_link_node(&he->rb_node, parent, p);
 	rb_insert_color(&he->rb_node, root);
+
+	/* update column width of dynamic entry */
+	if (perf_hpp__is_dynamic_entry(he->fmt))
+		he->fmt->sort(he->fmt, he, NULL);
 }
 
 static void hists__hierarchy_output_resort(struct hists *hists,
@@ -1440,6 +1444,7 @@ static void __hists__insert_output_entry(struct rb_root *entries,
 	struct rb_node **p = &entries->rb_node;
 	struct rb_node *parent = NULL;
 	struct hist_entry *iter;
+	struct perf_hpp_fmt *fmt;
 
 	if (use_callchain) {
 		if (callchain_param.mode == CHAIN_GRAPH_REL) {
@@ -1466,6 +1471,12 @@ static void __hists__insert_output_entry(struct rb_root *entries,
 
 	rb_link_node(&he->rb_node, parent, p);
 	rb_insert_color(&he->rb_node, entries);
+
+	perf_hpp_list__for_each_sort_list(&perf_hpp_list, fmt) {
+		if (perf_hpp__is_dynamic_entry(fmt) &&
+		    perf_hpp__defined_dynamic_entry(fmt, he->hists))
+			fmt->sort(fmt, he, NULL);  /* update column width */
+	}
 }
 
 static void output_resort(struct hists *hists, struct ui_progress *prog,
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index d26c6b9fe348..5888bfe9a193 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -1816,6 +1816,11 @@ static int64_t __sort__hde_cmp(struct perf_hpp_fmt *fmt,
 
 	hde = container_of(fmt, struct hpp_dynamic_entry, hpp);
 
+	if (b == NULL) {
+		update_dynamic_len(hde, a);
+		return 0;
+	}
+
 	field = hde->field;
 	if (field->flags & FIELD_IS_DYNAMIC) {
 		unsigned long long dyn;
@@ -1830,9 +1835,6 @@ static int64_t __sort__hde_cmp(struct perf_hpp_fmt *fmt,
 	} else {
 		offset = field->offset;
 		size = field->size;
-
-		update_dynamic_len(hde, a);
-		update_dynamic_len(hde, b);
 	}
 
 	return memcmp(a->raw_data + offset, b->raw_data + offset, size);
-- 
2.5.0

[PATCH 16/19] perf config: Bring perf_default_config to the very beginning at main()

[Arnaldo Carvalho de Melo]

From: Wang Nan <wangnan0@huawei.com>

Before this patch each subcommand calls perf_config() by themself,
reading the default configuration together with subcommand specific
options. If a subcommand doesn't have it own options, it needs to call
'perf_config(perf_default_config, NULL)' to ensure .perfconfig is
loaded.

This patch brings perf_config(perf_default_config, NULL) to the very
start of main(), so subcommands don't need to do it.

After this patch, 'llvm.clang-path' works for 'perf trace'.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Suggested-and-Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1456479154-136027-4-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-diff.c          | 2 --
 tools/perf/builtin-help.c          | 2 +-
 tools/perf/builtin-kmem.c          | 4 ++--
 tools/perf/builtin-report.c        | 2 +-
 tools/perf/builtin-top.c           | 4 ++--
 tools/perf/perf.c                  | 2 ++
 tools/perf/tests/llvm.c            | 8 --------
 tools/perf/util/color.c            | 5 +++--
 tools/perf/util/data-convert-bt.c  | 2 +-
 tools/perf/util/help-unknown-cmd.c | 5 +++--
 10 files changed, 15 insertions(+), 21 deletions(-)

diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 36ccc2b8827f..4d72359fd15a 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -1264,8 +1264,6 @@ int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused)
 	if (ret < 0)
 		return ret;
 
-	perf_config(perf_default_config, NULL);
-
 	argc = parse_options(argc, argv, options, diff_usage, 0);
 
 	if (symbol__init(NULL) < 0)
diff --git a/tools/perf/builtin-help.c b/tools/perf/builtin-help.c
index f4dd2b48f90f..49d55e21b1b0 100644
--- a/tools/perf/builtin-help.c
+++ b/tools/perf/builtin-help.c
@@ -272,7 +272,7 @@ static int perf_help_config(const char *var, const char *value, void *cb)
 	if (!prefixcmp(var, "man."))
 		return add_man_viewer_info(var, value);
 
-	return perf_default_config(var, value, cb);
+	return 0;
 }
 
 static struct cmdnames main_cmds, other_cmds;
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 118010553d0c..4d3340cce9a0 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -1834,7 +1834,7 @@ static int __cmd_record(int argc, const char **argv)
 	return cmd_record(i, rec_argv, NULL);
 }
 
-static int kmem_config(const char *var, const char *value, void *cb)
+static int kmem_config(const char *var, const char *value, void *cb __maybe_unused)
 {
 	if (!strcmp(var, "kmem.default")) {
 		if (!strcmp(value, "slab"))
@@ -1847,7 +1847,7 @@ static int kmem_config(const char *var, const char *value, void *cb)
 		return 0;
 	}
 
-	return perf_default_config(var, value, cb);
+	return 0;
 }
 
 int cmd_kmem(int argc, const char **argv, const char *prefix __maybe_unused)
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index f4d8244449ca..7eea49f9ed46 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -90,7 +90,7 @@ static int report__config(const char *var, const char *value, void *cb)
 		return 0;
 	}
 
-	return perf_default_config(var, value, cb);
+	return 0;
 }
 
 static int hist_iter__report_callback(struct hist_entry_iter *iter,
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index b86b623e8799..94af190f6843 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1065,7 +1065,7 @@ parse_callchain_opt(const struct option *opt, const char *arg, int unset)
 	return parse_callchain_top_opt(arg);
 }
 
-static int perf_top_config(const char *var, const char *value, void *cb)
+static int perf_top_config(const char *var, const char *value, void *cb __maybe_unused)
 {
 	if (!strcmp(var, "top.call-graph"))
 		var = "call-graph.record-mode"; /* fall-through */
@@ -1074,7 +1074,7 @@ static int perf_top_config(const char *var, const char *value, void *cb)
 		return 0;
 	}
 
-	return perf_default_config(var, value, cb);
+	return 0;
 }
 
 static int
diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index f6321194937f..aaee0a782747 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -548,6 +548,8 @@ int main(int argc, const char **argv)
 
 	srandom(time(NULL));
 
+	perf_config(perf_default_config, NULL);
+
 	/* get debugfs/tracefs mount point from /proc/mounts */
 	tracing_path_mount();
 
diff --git a/tools/perf/tests/llvm.c b/tools/perf/tests/llvm.c
index 70edcdfa5672..cff564fb4b66 100644
--- a/tools/perf/tests/llvm.c
+++ b/tools/perf/tests/llvm.c
@@ -6,12 +6,6 @@
 #include "tests.h"
 #include "debug.h"
 
-static int perf_config_cb(const char *var, const char *val,
-			  void *arg __maybe_unused)
-{
-	return perf_default_config(var, val, arg);
-}
-
 #ifdef HAVE_LIBBPF_SUPPORT
 static int test__bpf_parsing(void *obj_buf, size_t obj_buf_sz)
 {
@@ -77,8 +71,6 @@ test_llvm__fetch_bpf_obj(void **p_obj_buf,
 	if (should_load_fail)
 		*should_load_fail = bpf_source_table[idx].should_load_fail;
 
-	perf_config(perf_config_cb, NULL);
-
 	/*
 	 * Skip this test if user's .perfconfig doesn't set [llvm] section
 	 * and clang is not found in $PATH, and this is not perf test -v
diff --git a/tools/perf/util/color.c b/tools/perf/util/color.c
index e5fb88bab9e1..43e84aa27e4a 100644
--- a/tools/perf/util/color.c
+++ b/tools/perf/util/color.c
@@ -32,14 +32,15 @@ int perf_config_colorbool(const char *var, const char *value, int stdout_is_tty)
 	return 0;
 }
 
-int perf_color_default_config(const char *var, const char *value, void *cb)
+int perf_color_default_config(const char *var, const char *value,
+			      void *cb __maybe_unused)
 {
 	if (!strcmp(var, "color.ui")) {
 		perf_use_color_default = perf_config_colorbool(var, value, -1);
 		return 0;
 	}
 
-	return perf_default_config(var, value, cb);
+	return 0;
 }
 
 static int __color_vsnprintf(char *bf, size_t size, const char *color,
diff --git a/tools/perf/util/data-convert-bt.c b/tools/perf/util/data-convert-bt.c
index b722e57d5a87..6729f4d9df7c 100644
--- a/tools/perf/util/data-convert-bt.c
+++ b/tools/perf/util/data-convert-bt.c
@@ -1117,7 +1117,7 @@ static int convert__config(const char *var, const char *value, void *cb)
 		return 0;
 	}
 
-	return perf_default_config(var, value, cb);
+	return 0;
 }
 
 int bt_convert__perf2ctf(const char *input, const char *path, bool force)
diff --git a/tools/perf/util/help-unknown-cmd.c b/tools/perf/util/help-unknown-cmd.c
index dc1e41c9b054..43a98a4dc1e1 100644
--- a/tools/perf/util/help-unknown-cmd.c
+++ b/tools/perf/util/help-unknown-cmd.c
@@ -6,7 +6,8 @@
 static int autocorrect;
 static struct cmdnames aliases;
 
-static int perf_unknown_cmd_config(const char *var, const char *value, void *cb)
+static int perf_unknown_cmd_config(const char *var, const char *value,
+				   void *cb __maybe_unused)
 {
 	if (!strcmp(var, "help.autocorrect"))
 		autocorrect = perf_config_int(var,value);
@@ -14,7 +15,7 @@ static int perf_unknown_cmd_config(const char *var, const char *value, void *cb)
 	if (!prefixcmp(var, "alias."))
 		add_cmdname(&aliases, var + 6, strlen(var + 6));
 
-	return perf_default_config(var, value, cb);
+	return 0;
 }
 
 static int levenshtein_compare(const void *p1, const void *p2)
-- 
2.5.0

[PATCH 17/19] perf tools: Only set filter for tracepoints events

[Arnaldo Carvalho de Melo]

From: Wang Nan <wangnan0@huawei.com>

perf_evlist__set_filter() tries to set filter to every evsel linked in
the evlist. However, since filters can only be applied to tracepoints,
checking type of evsel before calling perf_evsel__set_filter() would be
better.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1456479154-136027-6-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/evlist.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index c42e1967e970..86a03836a83f 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1223,6 +1223,9 @@ int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter)
 	int err = 0;
 
 	evlist__for_each(evlist, evsel) {
+		if (evsel->attr.type != PERF_TYPE_TRACEPOINT)
+			continue;
+
 		err = perf_evsel__set_filter(evsel, filter);
 		if (err)
 			break;
-- 
2.5.0

[PATCH 18/19] perf trace: Call bpf__apply_obj_config in 'perf trace'

[Arnaldo Carvalho de Melo]

From: Wang Nan <wangnan0@huawei.com>

Without this patch BPF map configuration is not applied.

Command like this:
 # ./perf trace --ev bpf-output/no-inherit,name=evt/ \
                --ev ./test_bpf_trace.c/map:channel.event=evt/ \
                usleep 100000

Load BPF files without error, but since map:channel.event=evt is not
applied, bpf-output event not work.

This patch allows 'perf trace' load and run BPF scripts.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1456479154-136027-7-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 20916dd77aac..254149ca5e1b 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -33,6 +33,7 @@
 #include "util/stat.h"
 #include "trace-event.h"
 #include "util/parse-events.h"
+#include "util/bpf-loader.h"
 
 #include <libaudit.h>
 #include <stdlib.h>
@@ -2586,6 +2587,16 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
 	if (err < 0)
 		goto out_error_open;
 
+	err = bpf__apply_obj_config();
+	if (err) {
+		char errbuf[BUFSIZ];
+
+		bpf__strerror_apply_obj_config(err, errbuf, sizeof(errbuf));
+		pr_err("ERROR: Apply config to BPF failed: %s\n",
+			 errbuf);
+		goto out_error_open;
+	}
+
 	/*
 	 * Better not use !target__has_task() here because we need to cover the
 	 * case where no threads were specified in the command line, but a
-- 
2.5.0

[PATCH 19/19] perf trace: Print content of bpf-output event

[Arnaldo Carvalho de Melo]

From: Wang Nan <wangnan0@huawei.com>

With this patch the contend of BPF output event is printed by
'perf trace'. For example:

 # ./perf trace -a --ev bpf-output/no-inherit,name=evt/ \
                   --ev ./test_bpf_trace.c/map:channel.event=evt/ \
                   usleep 100000
  ...
    1.787 ( 0.004 ms): usleep/3832 nanosleep(rqtp: 0x7ffc78b18980                                        ) ...
    1.787 (         ): evt:Raise a BPF event!..)
    1.788 (         ): perf_bpf_probe:func_begin:(ffffffff810e97d0))
  ...
  101.866 (87.038 ms): gmain/1654 poll(ufds: 0x7f57a80008c0, nfds: 2, timeout_msecs: 1000               ) ...
  101.866 (         ): evt:Raise a BPF event!..)
  101.867 (         ): perf_bpf_probe:func_end:(ffffffff810e97d0 <- ffffffff81796173))
  101.869 (100.087 ms): usleep/3832  ... [continued]: nanosleep()) = 0
  ...

 (There is an extra ')' at the end of several lines. However, it is
  another problem, unrelated to this commit.)

Where test_bpf_trace.c is:

  /************************ BEGIN **************************/
  #include <uapi/linux/bpf.h>
  struct bpf_map_def {
        unsigned int type;
        unsigned int key_size;
        unsigned int value_size;
        unsigned int max_entries;
  };
  #define SEC(NAME) __attribute__((section(NAME), used))
  static u64 (*ktime_get_ns)(void) =
        (void *)BPF_FUNC_ktime_get_ns;
  static int (*trace_printk)(const char *fmt, int fmt_size, ...) =
        (void *)BPF_FUNC_trace_printk;
  static int (*get_smp_processor_id)(void) =
        (void *)BPF_FUNC_get_smp_processor_id;
  static int (*perf_event_output)(void *, struct bpf_map_def *, int, void *, unsigned long) =
        (void *)BPF_FUNC_perf_event_output;

  struct bpf_map_def SEC("maps") channel = {
        .type = BPF_MAP_TYPE_PERF_EVENT_ARRAY,
        .key_size = sizeof(int),
        .value_size = sizeof(u32),
        .max_entries = __NR_CPUS__,
  };

  static inline int __attribute__((always_inline))
  func(void *ctx, int type)
  {
	char output_str[] = "Raise a BPF event!";
	char err_str[] = "BAD %d\n";
	int err;

        err = perf_event_output(ctx, &channel, get_smp_processor_id(),
			        &output_str, sizeof(output_str));
	if (err)
		trace_printk(err_str, sizeof(err_str), err);
        return 1;
  }
  SEC("func_begin=sys_nanosleep")
  int func_begin(void *ctx) {return func(ctx, 1);}
  SEC("func_end=sys_nanosleep%return")
  int func_end(void *ctx) { return func(ctx, 2);}
  char _license[] SEC("license") = "GPL";
  int _version SEC("version") = LINUX_VERSION_CODE;
  /************************* END ***************************/

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1456479154-136027-8-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 35 ++++++++++++++++++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 254149ca5e1b..26a337f939d8 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -2178,6 +2178,37 @@ out_dump:
 	return 0;
 }
 
+static void bpf_output__printer(enum binary_printer_ops op,
+				unsigned int val, void *extra)
+{
+	FILE *output = extra;
+	unsigned char ch = (unsigned char)val;
+
+	switch (op) {
+	case BINARY_PRINT_CHAR_DATA:
+		fprintf(output, "%c", isprint(ch) ? ch : '.');
+		break;
+	case BINARY_PRINT_DATA_BEGIN:
+	case BINARY_PRINT_LINE_BEGIN:
+	case BINARY_PRINT_ADDR:
+	case BINARY_PRINT_NUM_DATA:
+	case BINARY_PRINT_NUM_PAD:
+	case BINARY_PRINT_SEP:
+	case BINARY_PRINT_CHAR_PAD:
+	case BINARY_PRINT_LINE_END:
+	case BINARY_PRINT_DATA_END:
+	default:
+		break;
+	}
+}
+
+static void bpf_output__fprintf(struct trace *trace,
+				struct perf_sample *sample)
+{
+	print_binary(sample->raw_data, sample->raw_size, 8,
+		     bpf_output__printer, trace->output);
+}
+
 static int trace__event_handler(struct trace *trace, struct perf_evsel *evsel,
 				union perf_event *event __maybe_unused,
 				struct perf_sample *sample)
@@ -2190,7 +2221,9 @@ static int trace__event_handler(struct trace *trace, struct perf_evsel *evsel,
 
 	fprintf(trace->output, "%s:", evsel->name);
 
-	if (evsel->tp_format) {
+	if (perf_evsel__is_bpf_output(evsel)) {
+		bpf_output__fprintf(trace, sample);
+	} else if (evsel->tp_format) {
 		event_format__fprintf(evsel->tp_format, sample->cpu,
 				      sample->raw_data, sample->raw_size,
 				      trace->output);
-- 
2.5.0

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> The following changes since commit 06466212a69c0511c5dcff7363c207ffc8913731:
> 
>   Merge tag 'perf-core-for-mingo-20160224' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-02-25 08:20:56 +0100)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160226
> 
> for you to fetch changes up to 1d6c9407d45dd622b277ca9f725da3cc9e95b5de:
> 
>   perf trace: Print content of bpf-output event (2016-02-26 19:57:07 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible:
> 
> - Show extra line telling no entries below --percent-limit are
>   at that --hierarchy level (Namhyung Kim)
> 
> - 'perf report/top --hierarchy' assorted alignment fixes (Namhyung Kim)
> 
> - Handle empty print fmts in 'perf script -s' i.e. when running
>   python or perl scripts (Taeung Song)
> 
> - Improve support for bpf-output events in 'perf trace' (Wang Nan)
> 
> - Fix parsing of pmu events with empty list of modifiers, this
>   cures a perf/core-only regression where '-e intel_pt//' got
>   broken (Arnaldo Carvalho de Melo)
> 
> Infrastructure:
> 
> - Improve missing OpenJDK devel files error message in jvmti
>   Makefile (Stephane Eranian)
> 
> - Remove duplicated code and needless script_spec__findnew() (Taeung Song)
> 
> - Bring perf_default_config to the very beginning at main(), removing
>   the need for each subcommand to do this (Wang Nan)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (2):
>       perf tools: Use asprintf() for simple string formatting/allocation
>       perf tools: Fix parsing of pmu events with empty list of modifiers
> 
> Namhyung Kim (10):
>       perf hists: Add more helper functions for the hierarchy mode
>       perf report: Show message for percent limit on stdio
>       perf hists browser: Cleanup hist_browser__update_percent_limit()
>       perf hists browser: Show message for percent limit
>       perf report: Show message for percent limit on gtk
>       perf hists: Fix comparing of dynamic entries
>       perf report: Fix indentation of dynamic entries in hierarchy
>       perf report: Left align dynamic entries in hierarchy
>       perf hists: Fix dynamic entry display in hierarchy
>       perf report: Update column width of dynamic entries
> 
> Stephane Eranian (1):
>       perf jvmti: improve error message in Makefile
> 
> Taeung Song (2):
>       perf script: Exception handling when the print fmt is empty
>       perf script: Remove duplicated code and needless script_spec__findnew()
> 
> Wang Nan (4):
>       perf config: Bring perf_default_config to the very beginning at main()
>       perf tools: Only set filter for tracepoints events
>       perf trace: Call bpf__apply_obj_config in 'perf trace'
>       perf trace: Print content of bpf-output event
> 
>  tools/perf/builtin-diff.c                          |   2 -
>  tools/perf/builtin-help.c                          |   2 +-
>  tools/perf/builtin-kmem.c                          |   4 +-
>  tools/perf/builtin-report.c                        |   2 +-
>  tools/perf/builtin-script.c                        |  21 +---
>  tools/perf/builtin-top.c                           |   4 +-
>  tools/perf/builtin-trace.c                         |  46 +++++++-
>  tools/perf/jvmti/Makefile                          |  17 ++-
>  tools/perf/perf.c                                  |  16 ++-
>  tools/perf/tests/llvm.c                            |   8 --
>  tools/perf/ui/browsers/hists.c                     | 128 +++++++++++++++++++--
>  tools/perf/ui/gtk/hists.c                          |  11 ++
>  tools/perf/ui/hist.c                               |  22 ++++
>  tools/perf/ui/stdio/hist.c                         |  49 ++++++--
>  tools/perf/util/color.c                            |   5 +-
>  tools/perf/util/data-convert-bt.c                  |   2 +-
>  tools/perf/util/evlist.c                           |   3 +
>  tools/perf/util/help-unknown-cmd.c                 |   5 +-
>  tools/perf/util/hist.c                             |  48 +++++++-
>  tools/perf/util/hist.h                             |   4 +
>  tools/perf/util/parse-events.y                     |   6 +-
>  .../perf/util/scripting-engines/trace-event-perl.c |   3 +
>  .../util/scripting-engines/trace-event-python.c    |   3 +
>  tools/perf/util/sort.c                             |  30 ++++-
>  tools/perf/util/sort.h                             |   1 +
>  25 files changed, 363 insertions(+), 79 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	A bit of trivia info is now automatically shown in the container
builds, the gcc version used to build the tools, that gets changed as
the distros update gcc and as I update the container build images :-)

	Please consider pulling,

- Arnaldo

Test results at the end of this message, as usual.

The following changes since commit 0d3d73aac2ff05c78387aa9dcc2c8aa3804405e7:

  perf/core: Rewrite event timekeeping (2017-10-27 10:31:59 +0200)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.15-20171103

for you to fetch changes up to 7285cf3325b4a1dfb336d31eebc27dfbc30fb9aa:

  perf srcline: Show correct function name for srcline of callchains (2017-11-01 11:44:38 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

- Beautify the 'kcmp' and 'prctl' syscall arguments in 'perf trace'
  (Arnaldo Carvalho de Melo)

- Implement a way to print formatted output to per-event files in 'perf script'
  to facilitate generate flamegraphs, elliminating the need to write scripts to
  do that separation (yuzhoujian, Arnaldo Carvalho de Melo)

  Make 'perf stat --per-thread' update shadow stats to show metrics (Jiri Olsa)

- Fix double mapping al->addr in callchain processing for children without self
  period (Namhyung Kim)

- Fix memory leak in addr2inlines() when libbfd is not used (Namhyung Kim)

- Show correct function name for srcline of callchains when libbfd is not used
  (Namhyung Kim)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Arnaldo Carvalho de Melo (11):
      perf script: Add a few missing conversions to fprintf style
      perf script: Use pr_debug where appropriate
      perf script: Use event_format__fprintf()
      perf evsel: Restore evsel->priv as a tool private area
      perf script: Allow creating per-event dump files
      tools include uapi: Grab a copy of linux/prctl.h
      perf trace beauty prctl: Generate 'option' string table from kernel headers
      perf script: Print information about per-event-dump files
      tools include uapi: Grab a copy of linux/kcmp.h
      perf trace beauty: Implement pid_fd beautifier
      perf trace beauty kcmp: Beautify arguments

Jiri Olsa (5):
      perf tools: Rename struct perf_data_file to perf_data
      perf tools: Add struct perf_data_file
      perf tools: Add perf_data_file__write function
      perf stat: Move the shadow stats scale computation in perf_stat__update_shadow_stats
      perf stat: Make --per-thread update shadow stats to show metrics

Namhyung Kim (3):
      perf callchain: Fix double mapping al->addr for children without self period
      perf srcline: Fix memory leak in addr2inlines()
      perf srcline: Show correct function name for srcline of callchains

 tools/include/uapi/linux/kcmp.h          |  27 +++++
 tools/include/uapi/linux/prctl.h         | 200 +++++++++++++++++++++++++++++++
 tools/perf/Documentation/perf-script.txt |   4 +
 tools/perf/Makefile.perf                 |  22 +++-
 tools/perf/builtin-annotate.c            |  10 +-
 tools/perf/builtin-buildid-cache.c       |   8 +-
 tools/perf/builtin-buildid-list.c        |  16 +--
 tools/perf/builtin-c2c.c                 |  10 +-
 tools/perf/builtin-diff.c                |  18 +--
 tools/perf/builtin-evlist.c              |  12 +-
 tools/perf/builtin-inject.c              |  36 +++---
 tools/perf/builtin-kmem.c                |   8 +-
 tools/perf/builtin-kvm.c                 |  14 ++-
 tools/perf/builtin-lock.c                |  12 +-
 tools/perf/builtin-mem.c                 |  12 +-
 tools/perf/builtin-record.c              |  50 ++++----
 tools/perf/builtin-report.c              |  14 +--
 tools/perf/builtin-sched.c               |  24 ++--
 tools/perf/builtin-script.c              | 169 ++++++++++++++++++++++----
 tools/perf/builtin-stat.c                |  39 +++---
 tools/perf/builtin-timechart.c           |  14 ++-
 tools/perf/builtin-trace.c               |  40 ++++++-
 tools/perf/check-headers.sh              |   2 +
 tools/perf/tests/topology.c              |  22 ++--
 tools/perf/trace/beauty/Build            |   2 +
 tools/perf/trace/beauty/beauty.h         |  18 +++
 tools/perf/trace/beauty/kcmp.c           |  44 +++++++
 tools/perf/trace/beauty/kcmp_type.sh     |  10 ++
 tools/perf/trace/beauty/prctl.c          |  82 +++++++++++++
 tools/perf/trace/beauty/prctl_option.sh  |  17 +++
 tools/perf/util/auxtrace.c               |   4 +-
 tools/perf/util/callchain.c              |   5 +-
 tools/perf/util/data-convert-bt.c        |  12 +-
 tools/perf/util/data.c                   |  94 ++++++++-------
 tools/perf/util/data.h                   |  38 +++---
 tools/perf/util/evsel.h                  |   3 +
 tools/perf/util/header.c                 |  20 ++--
 tools/perf/util/intel-bts.c              |   6 +-
 tools/perf/util/intel-pt.c               |   6 +-
 tools/perf/util/jit.h                    |   2 +-
 tools/perf/util/jitdump.c                |  10 +-
 tools/perf/util/session.c                |  44 +++----
 tools/perf/util/session.h                |   4 +-
 tools/perf/util/srcline.c                | 102 +++++++++-------
 tools/perf/util/stat-shadow.c            |  48 ++++----
 tools/perf/util/stat.c                   |  24 ++--
 tools/perf/util/stat.h                   |   2 +-
 47 files changed, 999 insertions(+), 381 deletions(-)
 create mode 100644 tools/include/uapi/linux/kcmp.h
 create mode 100644 tools/include/uapi/linux/prctl.h
 create mode 100644 tools/perf/trace/beauty/kcmp.c
 create mode 100755 tools/perf/trace/beauty/kcmp_type.sh
 create mode 100644 tools/perf/trace/beauty/prctl.c
 create mode 100755 tools/perf/trace/beauty/prctl_option.sh

Test results:

The first ones are container (docker) based builds of tools/perf with and
without libelf support.  Where clang is available, it is also used to build
perf with/without libelf.

The objtool and samples/bpf/ builds are disabled now that I'm switching from
using the sources in a local volume to fetching them from a http server to
build it inside the container, to make it easier to build in a container cluster.
Those will come back later.

Several are cross builds, the ones with -x-ARCH and the android one, and those
may not have all the features built, due to lack of multi-arch devel packages,
available and being used so far on just a few, like
debian:experimental-x-{arm64,mipsel}.

The 'perf test' one will perform a variety of tests exercising
tools/perf/util/, tools/lib/{bpf,traceevent,etc}, as well as run perf commands
with a variety of command line event specifications to then intercept the
sys_perf_event syscall to check that the perf_event_attr fields are set up as
expected, among a variety of other unit tests.

Then there is the 'make -C tools/perf build-test' ones, that build tools/perf/
with a variety of feature sets, exercising the build with an incomplete set of
features as well as with a complete one. It is planned to have it run on each
of the containers mentioned above, using some container orchestration
infrastructure. Get in contact if interested in helping having this in place.

  # dm
   1 alpine:3.4: Ok                       gcc (Alpine 5.3.0) 5.3.0
   2 alpine:3.5: Ok                       gcc (Alpine 6.2.1) 6.2.1 20160822
   3 alpine:3.6: Ok                       gcc (Alpine 6.3.0) 6.3.0
   4 alpine:edge: Ok                      gcc (Alpine 6.4.0) 6.4.0
   5 android-ndk:r12b-arm: Ok             arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
   6 android-ndk:r15c-arm: Ok             arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
   7 centos:5: Ok                         gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-55)
   8 centos:6: Ok                         gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)
   9 centos:7: Ok                         gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-16)
  10 debian:7: Ok                         gcc (Debian 4.7.2-5) 4.7.2
  11 debian:8: Ok                         gcc (Debian 4.9.2-10) 4.9.2
  12 debian:9: Ok                         gcc (Debian 6.3.0-18) 6.3.0 20170516
  13 debian:experimental: Ok              gcc (Debian 7.2.0-11) 7.2.0
  14 debian:experimental-x-arm64: Ok      aarch64-linux-gnu-gcc (Debian 7.2.0-6) 7.2.0
  15 debian:experimental-x-mips: Ok       mips-linux-gnu-gcc (Debian 7.2.0-6) 7.2.0
  16 debian:experimental-x-mips64: Ok     mips64-linux-gnuabi64-gcc (Debian 7.2.0-6) 7.2.0
  17 debian:experimental-x-mipsel: Ok     mipsel-linux-gnu-gcc (Debian 7.2.0-6) 7.2.0
  18 fedora:20: Ok                        gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7)
  19 fedora:21: Ok                        gcc (GCC) 4.9.2 20150212 (Red Hat 4.9.2-6)
  20 fedora:22: Ok                        gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
  21 fedora:23: Ok                        gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
  22 fedora:24: Ok                        gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1)
  23 fedora:24-x-ARC-uClibc: Ok           arc-linux-gcc (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710
  24 fedora:25: Ok                        gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1)
  25 fedora:26: Ok                        gcc (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2)
  26 fedora:rawhide: Ok                   gcc (GCC) 7.2.1 20170829 (Red Hat 7.2.1-1)
  27 mageia:5: Ok                         gcc (GCC) 4.9.2
  28 mageia:6: Ok                         gcc (Mageia 5.4.0-5.mga6) 5.4.0
  29 opensuse:42.1: Ok                    gcc (SUSE Linux) 4.8.5
  30 opensuse:42.2: Ok                    gcc (SUSE Linux) 4.8.5
  31 opensuse:42.3: Ok                    gcc (SUSE Linux) 4.8.5
  32 opensuse:tumbleweed: Ok              gcc (SUSE Linux) 7.2.1 20170901 [gcc-7-branch revision 251580]
  33 oraclelinux:6: Ok                    gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)
  34 oraclelinux:7: Ok                    gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-16)
  35 ubuntu:12.04.5: Ok                   gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
  36 ubuntu:14.04.4: Ok                   gcc (Ubuntu 4.8.4-2ubuntu1~14.04.3) 4.8.4
  37 ubuntu:14.04.4-x-linaro-arm64: Ok    aarch64-linux-gnu-gcc (Linaro GCC 5.4-2017.05) 5.4.1 20170404
  38 ubuntu:15.04: Ok                     gcc (Ubuntu 4.9.2-10ubuntu13) 4.9.2
  39 ubuntu:15.10: Ok                     gcc (Ubuntu 5.2.1-22ubuntu2) 5.2.1 20151010
  40 ubuntu:16.04: Ok                     gcc (Ubuntu 5.4.0-6ubuntu1~16.04.5) 5.4.0 20160609
  41 ubuntu:16.04-x-arm: Ok               arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  42 ubuntu:16.04-x-arm64: Ok             aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  43 ubuntu:16.04-x-powerpc: Ok           powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  44 ubuntu:16.04-x-powerpc64: Ok         powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.1) 5.4.0 20160609
  45 ubuntu:16.04-x-powerpc64el: Ok       powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  46 ubuntu:16.04-x-s390: Ok              s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  47 ubuntu:16.10: Ok                     gcc (Ubuntu 6.2.0-5ubuntu12) 6.2.0 20161005
  48 ubuntu:17.04: Ok                     gcc (Ubuntu 6.3.0-12ubuntu2) 6.3.0 20170406
  49 ubuntu:17.10: Ok                     gcc (Ubuntu 7.2.0-8ubuntu3) 7.2.0
  # 

  # uname -a
  Linux jouet 4.14.0-rc6+ #1 SMP Tue Oct 31 14:43:51 -03 2017 x86_64 x86_64 x86_64 GNU/Linux
  # perf test
   1: vmlinux symtab matches kallsyms                       : Ok
   2: Detect openat syscall event                           : Ok
   3: Detect openat syscall event on all cpus               : Ok
   4: Read samples using the mmap interface                 : Ok
   5: Test data source output                               : Ok
   6: Parse event definition strings                        : Ok
   7: Simple expression parser                              : Ok
   8: PERF_RECORD_* events & perf_sample fields             : Ok
   9: Parse perf pmu format                                 : Ok
  10: DSO data read                                         : Ok
  11: DSO data cache                                        : Ok
  12: DSO data reopen                                       : Ok
  13: Roundtrip evsel->name                                 : Ok
  14: Parse sched tracepoints fields                        : Ok
  15: syscalls:sys_enter_openat event fields                : Ok
  16: Setup struct perf_event_attr                          : Ok
  17: Match and link multiple hists                         : Ok
  18: 'import perf' in python                               : Ok
  19: Breakpoint overflow signal handler                    : Ok
  20: Breakpoint overflow sampling                          : Ok
  21: Number of exit events of a simple workload            : Ok
  22: Software clock events period values                   : Ok
  23: Object code reading                                   : Ok
  24: Sample parsing                                        : Ok
  25: Use a dummy software event to keep tracking           : Ok
  26: Parse with no sample_id_all bit set                   : Ok
  27: Filter hist entries                                   : Ok
  28: Lookup mmap thread                                    : Ok
  29: Share thread mg                                       : Ok
  30: Sort output of hist entries                           : Ok
  31: Cumulate child hist entries                           : Ok
  32: Track with sched_switch                               : Ok
  33: Filter fds with revents mask in a fdarray             : Ok
  34: Add fd to a fdarray, making it autogrow               : Ok
  35: kmod_path__parse                                      : Ok
  36: Thread map                                            : Ok
  37: LLVM search and compile                               :
  37.1: Basic BPF llvm compile                              : Ok
  37.2: kbuild searching                                    : Ok
  37.3: Compile source for BPF prologue generation          : Ok
  37.4: Compile source for BPF relocation                   : Ok
  38: Session topology                                      : Ok
  39: BPF filter                                            :
  39.1: Basic BPF filtering                                 : Ok
  39.2: BPF pinning                                         : Ok
  39.3: BPF prologue generation                             : Ok
  39.4: BPF relocation checker                              : Ok
  40: Synthesize thread map                                 : Ok
  41: Remove thread map                                     : Ok
  42: Synthesize cpu map                                    : Ok
  43: Synthesize stat config                                : Ok
  44: Synthesize stat                                       : Ok
  45: Synthesize stat round                                 : Ok
  46: Synthesize attr update                                : Ok
  47: Event times                                           : Ok
  48: Read backward ring buffer                             : Ok
  49: Print cpu map                                         : Ok
  50: Probe SDT events                                      : Ok
  51: is_printable_array                                    : Ok
  52: Print bitmap                                          : Ok
  53: perf hooks                                            : Ok
  54: builtin clang support                                 : Skip (not compiled in)
  55: unit_number__scnprintf                                : Ok
  56: x86 rdpmc                                             : Ok
  57: Convert perf time to TSC                              : Ok
  58: DWARF unwind                                          : Ok
  59: x86 instruction decoder - new instructions            : Ok
  60: Use vfs_getname probe to get syscall args filenames   : Ok
  61: probe libc's inet_pton & backtrace it with ping       : Ok
  62: Check open filename arg using perf trace + vfs_getname: Ok
  63: Add vfs_getname probe to get syscall args filenames   : Ok
  # 

  $ make -C tools/perf build-test
  make: Entering directory '/home/acme/git/linux/tools/perf'
  - tarpkg: ./tests/perf-targz-src-pkg .
                  make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
              make_clean_all_O: make clean all
             make_no_libnuma_O: make NO_LIBNUMA=1
            make_no_demangle_O: make NO_DEMANGLE=1
         make_with_clangllvm_O: make LIBCLANGLLVM=1
             make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
                make_no_gtk2_O: make NO_GTK2=1
                 make_static_O: make LDFLAGS=-static
  make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
                   make_pure_O: make
            make_no_libaudit_O: make NO_LIBAUDIT=1
                  make_debug_O: make DEBUG=1
                make_no_newt_O: make NO_NEWT=1
       make_util_pmu_bison_o_O: make util/pmu-bison.o
   make_install_prefix_slash_O: make install prefix=/tmp/krava/
               make_no_slang_O: make NO_SLANG=1
            make_no_auxtrace_O: make NO_AUXTRACE=1
         make_install_prefix_O: make install prefix=/tmp/krava
           make_no_libbionic_O: make NO_LIBBIONIC=1
                    make_doc_O: make doc
                   make_tags_O: make tags
        make_with_babeltrace_O: make LIBBABELTRACE=1
              make_no_libelf_O: make NO_LIBELF=1
           make_no_libpython_O: make NO_LIBPYTHON=1
                   make_help_O: make help
              make_no_libbpf_O: make NO_LIBBPF=1
                 make_perf_o_O: make perf.o
           make_no_libunwind_O: make NO_LIBUNWIND=1
                make_install_O: make install
             make_util_map_o_O: make util/map.o
            make_install_bin_O: make install-bin
           make_no_backtrace_O: make NO_BACKTRACE=1
             make_no_libperl_O: make NO_LIBPERL=1
                make_minimal_O: make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1
  OK
  make: Leaving directory '/home/acme/git/linux/tools/perf'
  $

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Em Mon, Aug 14, 2017 at 07:39:48PM +0200, Ingo Molnar escreveu:
> * Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
> > Infrastructure:

> > - Add support for shell based tests in 'perf test', add a few that
> >   run 'perf probe', 'perf trace', using kprobes, uprobes to check
> >   the output of those tools and the effects on the system, checking,
> >   for instance, DWARF backtraces from uprobes (Arnaldo Carvalho de Melo)
<SNIP>
> >  create mode 100644 tools/perf/tests/shell/lib/probe_vfs_getname.sh
> >  create mode 100755 tools/perf/tests/shell/probe_vfs_getname.sh
> >  create mode 100755 tools/perf/tests/shell/record+script_probe_vfs_getname.sh
> >  create mode 100755 tools/perf/tests/shell/trace+probe_libc_inet_pton.sh
> >  create mode 100755 tools/perf/tests/shell/trace+probe_vfs_getname.sh
> 
> Pulled, thanks a lot Arnaldo!

Thanks! I'm working with Kim Phillips to fix some issues he noticed
while testing on his ARM systems where 'perf probe' is not available, my
perf/core branch has several fixes to handle this that will be in my
next pull request.

- Arnaldo

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> Test results at the end of this message, as usual.
> 
> 
> The following changes since commit 82119cbe8e1e32cc2a941393e59816e731681310:
> 
>   Merge tag 'perf-core-for-mingo-4.14-20170801' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2017-08-10 17:07:02 +0200)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.14-20170814
> 
> for you to fetch changes up to 8fc375d7d36c72b4c2d55f5c24be022a939295d4:
> 
>   perf test shell: Add uprobes + backtrace ping test (2017-08-11 16:18:49 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> Infrastructure:
> 
> - Do not consider empty files as valid srclines (Milian Wolff)
> 
> - Fix wrong size in perf_record_mmap for last kernel module,
>   which resulted in erroneous symbol resolution in at least s390x (Thomas Richter)
> 
> - Add missing newline to expr parser error messages (Andi Kleen)
> 
> - Fix saved values rbtree lookup in 'perf stat' (Andi Kleen)
> 
> - Add support for shell based tests in 'perf test', add a few that
>   run 'perf probe', 'perf trace', using kprobes, uprobes to check
>   the output of those tools and the effects on the system, checking,
>   for instance, DWARF backtraces from uprobes (Arnaldo Carvalho de Melo)
> 
> Arch specific:
> 
> - Add ppc64le to audit uname list in the python scripting support (Naveen N. Rao)
> 
> - Update POWER9 vendor events tables (Sukadev Bhattiprolu)
> 
> - Fix module symbol adjustment for s390x (Thomas Richter)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Andi Kleen (2):
>       perf stat: Fix saved values rbtree lookup
>       perf tools: Add missing newline to expr parser error messages
> 
> Arnaldo Carvalho de Melo (10):
>       perf test: Make 'list' subcommand match main 'perf test' numbering/matching
>       perf test: Add 'struct test *' to the test functions
>       perf test: Add infrastructure to run shell based tests
>       perf test: Make 'list' use same filtering code as main 'perf test'
>       perf test shell: Add 'probe_vfs_getname' shell test
>       perf test shell: Install shell tests
>       perf test shell: Move vfs_getname probe function to lib
>       perf test shell: Add test using probe:vfs_getname and verifying results
>       perf test shell: Add test using vfs_getname + 'perf trace'
>       perf test shell: Add uprobes + backtrace ping test
> 
> Milian Wolff (2):
>       perf util: Take elf_name as const string in dso__demangle_sym
>       perf srcline: Do not consider empty files as valid srclines
> 
> Naveen N. Rao (1):
>       perf scripting python: Add ppc64le to audit uname list
> 
> Sukadev Bhattiprolu (2):
>       perf vendor events powerpc: remove suffix in mapfile
>       perf vendor events powerpc: Update POWER9 events
> 
> Thomas Richter (2):
>       perf record: Fix wrong size in perf_record_mmap for last kernel module
>       perf report: Fix module symbol adjustment for s390x
> 
>  tools/perf/Makefile.perf                           |    6 +-
>  tools/perf/arch/s390/util/sym-handling.c           |    7 +
>  tools/perf/arch/x86/include/arch-tests.h           |   11 +-
>  tools/perf/arch/x86/tests/insn-x86.c               |    2 +-
>  tools/perf/arch/x86/tests/intel-cqm.c              |    2 +-
>  tools/perf/arch/x86/tests/perf-time-to-tsc.c       |    2 +-
>  tools/perf/arch/x86/tests/rdpmc.c                  |    2 +-
>  tools/perf/pmu-events/arch/powerpc/mapfile.csv     |   20 +-
>  .../perf/pmu-events/arch/powerpc/power9/cache.json |  191 +-
>  .../arch/powerpc/power9/floating-point.json        |   42 +-
>  .../pmu-events/arch/powerpc/power9/frontend.json   |  517 ++--
>  .../pmu-events/arch/powerpc/power9/marked.json     |  905 +++----
>  .../pmu-events/arch/powerpc/power9/memory.json     |  178 +-
>  .../perf/pmu-events/arch/powerpc/power9/other.json | 2768 ++++++++++++++++----
>  .../pmu-events/arch/powerpc/power9/pipeline.json   |  779 +++---
>  tools/perf/pmu-events/arch/powerpc/power9/pmc.json |  167 +-
>  .../arch/powerpc/power9/translation.json           |  314 +--
>  .../python/Perf-Trace-Util/lib/Perf/Trace/Util.py  |    1 +
>  tools/perf/tests/attr.c                            |    2 +-
>  tools/perf/tests/backward-ring-buffer.c            |    2 +-
>  tools/perf/tests/bitmap.c                          |    2 +-
>  tools/perf/tests/bp_signal.c                       |    2 +-
>  tools/perf/tests/bp_signal_overflow.c              |    2 +-
>  tools/perf/tests/bpf.c                             |    4 +-
>  tools/perf/tests/builtin-test.c                    |  184 +-
>  tools/perf/tests/clang.c                           |    4 +-
>  tools/perf/tests/code-reading.c                    |    2 +-
>  tools/perf/tests/cpumap.c                          |    4 +-
>  tools/perf/tests/dso-data.c                        |    6 +-
>  tools/perf/tests/dwarf-unwind.c                    |    2 +-
>  tools/perf/tests/event-times.c                     |    2 +-
>  tools/perf/tests/event_update.c                    |    2 +-
>  tools/perf/tests/evsel-roundtrip-name.c            |    2 +-
>  tools/perf/tests/evsel-tp-sched.c                  |    2 +-
>  tools/perf/tests/expr.c                            |    2 +-
>  tools/perf/tests/fdarray.c                         |    4 +-
>  tools/perf/tests/hists_cumulate.c                  |    2 +-
>  tools/perf/tests/hists_filter.c                    |    2 +-
>  tools/perf/tests/hists_link.c                      |    2 +-
>  tools/perf/tests/hists_output.c                    |    2 +-
>  tools/perf/tests/is_printable_array.c              |    2 +-
>  tools/perf/tests/keep-tracking.c                   |    2 +-
>  tools/perf/tests/kmod-path.c                       |    2 +-
>  tools/perf/tests/llvm.c                            |    2 +-
>  tools/perf/tests/mmap-basic.c                      |    2 +-
>  tools/perf/tests/mmap-thread-lookup.c              |    2 +-
>  tools/perf/tests/openat-syscall-all-cpus.c         |    2 +-
>  tools/perf/tests/openat-syscall-tp-fields.c        |    2 +-
>  tools/perf/tests/openat-syscall.c                  |    2 +-
>  tools/perf/tests/parse-events.c                    |    2 +-
>  tools/perf/tests/parse-no-sample-id-all.c          |    2 +-
>  tools/perf/tests/perf-hooks.c                      |    2 +-
>  tools/perf/tests/perf-record.c                     |    2 +-
>  tools/perf/tests/pmu.c                             |    2 +-
>  tools/perf/tests/python-use.c                      |    2 +-
>  tools/perf/tests/sample-parsing.c                  |    2 +-
>  tools/perf/tests/sdt.c                             |    4 +-
>  tools/perf/tests/shell/lib/probe_vfs_getname.sh    |   28 +
>  tools/perf/tests/shell/probe_vfs_getname.sh        |   10 +
>  .../tests/shell/record+script_probe_vfs_getname.sh |   37 +
>  .../perf/tests/shell/trace+probe_libc_inet_pton.sh |   40 +
>  tools/perf/tests/shell/trace+probe_vfs_getname.sh  |   31 +
>  tools/perf/tests/stat.c                            |    6 +-
>  tools/perf/tests/sw-clock.c                        |    2 +-
>  tools/perf/tests/switch-tracking.c                 |    2 +-
>  tools/perf/tests/task-exit.c                       |    2 +-
>  tools/perf/tests/tests.h                           |  113 +-
>  tools/perf/tests/thread-map.c                      |    6 +-
>  tools/perf/tests/thread-mg-share.c                 |    2 +-
>  tools/perf/tests/topology.c                        |    2 +-
>  tools/perf/tests/unit_number__scnprintf.c          |    2 +-
>  tools/perf/tests/vmlinux-kallsyms.c                |    2 +-
>  tools/perf/util/expr.y                             |    2 +-
>  tools/perf/util/machine.c                          |    4 +-
>  tools/perf/util/srcline.c                          |    6 +
>  tools/perf/util/stat-shadow.c                      |    6 +-
>  tools/perf/util/symbol-elf.c                       |   12 +-
>  tools/perf/util/symbol-minimal.c                   |    2 +-
>  tools/perf/util/symbol.c                           |   21 +-
>  tools/perf/util/symbol.h                           |    7 +-
>  80 files changed, 4054 insertions(+), 2479 deletions(-)
>  create mode 100644 tools/perf/tests/shell/lib/probe_vfs_getname.sh
>  create mode 100755 tools/perf/tests/shell/probe_vfs_getname.sh
>  create mode 100755 tools/perf/tests/shell/record+script_probe_vfs_getname.sh
>  create mode 100755 tools/perf/tests/shell/trace+probe_libc_inet_pton.sh
>  create mode 100755 tools/perf/tests/shell/trace+probe_vfs_getname.sh

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

Test results at the end of this message, as usual.


The following changes since commit 82119cbe8e1e32cc2a941393e59816e731681310:

  Merge tag 'perf-core-for-mingo-4.14-20170801' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2017-08-10 17:07:02 +0200)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.14-20170814

for you to fetch changes up to 8fc375d7d36c72b4c2d55f5c24be022a939295d4:

  perf test shell: Add uprobes + backtrace ping test (2017-08-11 16:18:49 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

Infrastructure:

- Do not consider empty files as valid srclines (Milian Wolff)

- Fix wrong size in perf_record_mmap for last kernel module,
  which resulted in erroneous symbol resolution in at least s390x (Thomas Richter)

- Add missing newline to expr parser error messages (Andi Kleen)

- Fix saved values rbtree lookup in 'perf stat' (Andi Kleen)

- Add support for shell based tests in 'perf test', add a few that
  run 'perf probe', 'perf trace', using kprobes, uprobes to check
  the output of those tools and the effects on the system, checking,
  for instance, DWARF backtraces from uprobes (Arnaldo Carvalho de Melo)

Arch specific:

- Add ppc64le to audit uname list in the python scripting support (Naveen N. Rao)

- Update POWER9 vendor events tables (Sukadev Bhattiprolu)

- Fix module symbol adjustment for s390x (Thomas Richter)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Andi Kleen (2):
      perf stat: Fix saved values rbtree lookup
      perf tools: Add missing newline to expr parser error messages

Arnaldo Carvalho de Melo (10):
      perf test: Make 'list' subcommand match main 'perf test' numbering/matching
      perf test: Add 'struct test *' to the test functions
      perf test: Add infrastructure to run shell based tests
      perf test: Make 'list' use same filtering code as main 'perf test'
      perf test shell: Add 'probe_vfs_getname' shell test
      perf test shell: Install shell tests
      perf test shell: Move vfs_getname probe function to lib
      perf test shell: Add test using probe:vfs_getname and verifying results
      perf test shell: Add test using vfs_getname + 'perf trace'
      perf test shell: Add uprobes + backtrace ping test

Milian Wolff (2):
      perf util: Take elf_name as const string in dso__demangle_sym
      perf srcline: Do not consider empty files as valid srclines

Naveen N. Rao (1):
      perf scripting python: Add ppc64le to audit uname list

Sukadev Bhattiprolu (2):
      perf vendor events powerpc: remove suffix in mapfile
      perf vendor events powerpc: Update POWER9 events

Thomas Richter (2):
      perf record: Fix wrong size in perf_record_mmap for last kernel module
      perf report: Fix module symbol adjustment for s390x

 tools/perf/Makefile.perf                           |    6 +-
 tools/perf/arch/s390/util/sym-handling.c           |    7 +
 tools/perf/arch/x86/include/arch-tests.h           |   11 +-
 tools/perf/arch/x86/tests/insn-x86.c               |    2 +-
 tools/perf/arch/x86/tests/intel-cqm.c              |    2 +-
 tools/perf/arch/x86/tests/perf-time-to-tsc.c       |    2 +-
 tools/perf/arch/x86/tests/rdpmc.c                  |    2 +-
 tools/perf/pmu-events/arch/powerpc/mapfile.csv     |   20 +-
 .../perf/pmu-events/arch/powerpc/power9/cache.json |  191 +-
 .../arch/powerpc/power9/floating-point.json        |   42 +-
 .../pmu-events/arch/powerpc/power9/frontend.json   |  517 ++--
 .../pmu-events/arch/powerpc/power9/marked.json     |  905 +++----
 .../pmu-events/arch/powerpc/power9/memory.json     |  178 +-
 .../perf/pmu-events/arch/powerpc/power9/other.json | 2768 ++++++++++++++++----
 .../pmu-events/arch/powerpc/power9/pipeline.json   |  779 +++---
 tools/perf/pmu-events/arch/powerpc/power9/pmc.json |  167 +-
 .../arch/powerpc/power9/translation.json           |  314 +--
 .../python/Perf-Trace-Util/lib/Perf/Trace/Util.py  |    1 +
 tools/perf/tests/attr.c                            |    2 +-
 tools/perf/tests/backward-ring-buffer.c            |    2 +-
 tools/perf/tests/bitmap.c                          |    2 +-
 tools/perf/tests/bp_signal.c                       |    2 +-
 tools/perf/tests/bp_signal_overflow.c              |    2 +-
 tools/perf/tests/bpf.c                             |    4 +-
 tools/perf/tests/builtin-test.c                    |  184 +-
 tools/perf/tests/clang.c                           |    4 +-
 tools/perf/tests/code-reading.c                    |    2 +-
 tools/perf/tests/cpumap.c                          |    4 +-
 tools/perf/tests/dso-data.c                        |    6 +-
 tools/perf/tests/dwarf-unwind.c                    |    2 +-
 tools/perf/tests/event-times.c                     |    2 +-
 tools/perf/tests/event_update.c                    |    2 +-
 tools/perf/tests/evsel-roundtrip-name.c            |    2 +-
 tools/perf/tests/evsel-tp-sched.c                  |    2 +-
 tools/perf/tests/expr.c                            |    2 +-
 tools/perf/tests/fdarray.c                         |    4 +-
 tools/perf/tests/hists_cumulate.c                  |    2 +-
 tools/perf/tests/hists_filter.c                    |    2 +-
 tools/perf/tests/hists_link.c                      |    2 +-
 tools/perf/tests/hists_output.c                    |    2 +-
 tools/perf/tests/is_printable_array.c              |    2 +-
 tools/perf/tests/keep-tracking.c                   |    2 +-
 tools/perf/tests/kmod-path.c                       |    2 +-
 tools/perf/tests/llvm.c                            |    2 +-
 tools/perf/tests/mmap-basic.c                      |    2 +-
 tools/perf/tests/mmap-thread-lookup.c              |    2 +-
 tools/perf/tests/openat-syscall-all-cpus.c         |    2 +-
 tools/perf/tests/openat-syscall-tp-fields.c        |    2 +-
 tools/perf/tests/openat-syscall.c                  |    2 +-
 tools/perf/tests/parse-events.c                    |    2 +-
 tools/perf/tests/parse-no-sample-id-all.c          |    2 +-
 tools/perf/tests/perf-hooks.c                      |    2 +-
 tools/perf/tests/perf-record.c                     |    2 +-
 tools/perf/tests/pmu.c                             |    2 +-
 tools/perf/tests/python-use.c                      |    2 +-
 tools/perf/tests/sample-parsing.c                  |    2 +-
 tools/perf/tests/sdt.c                             |    4 +-
 tools/perf/tests/shell/lib/probe_vfs_getname.sh    |   28 +
 tools/perf/tests/shell/probe_vfs_getname.sh        |   10 +
 .../tests/shell/record+script_probe_vfs_getname.sh |   37 +
 .../perf/tests/shell/trace+probe_libc_inet_pton.sh |   40 +
 tools/perf/tests/shell/trace+probe_vfs_getname.sh  |   31 +
 tools/perf/tests/stat.c                            |    6 +-
 tools/perf/tests/sw-clock.c                        |    2 +-
 tools/perf/tests/switch-tracking.c                 |    2 +-
 tools/perf/tests/task-exit.c                       |    2 +-
 tools/perf/tests/tests.h                           |  113 +-
 tools/perf/tests/thread-map.c                      |    6 +-
 tools/perf/tests/thread-mg-share.c                 |    2 +-
 tools/perf/tests/topology.c                        |    2 +-
 tools/perf/tests/unit_number__scnprintf.c          |    2 +-
 tools/perf/tests/vmlinux-kallsyms.c                |    2 +-
 tools/perf/util/expr.y                             |    2 +-
 tools/perf/util/machine.c                          |    4 +-
 tools/perf/util/srcline.c                          |    6 +
 tools/perf/util/stat-shadow.c                      |    6 +-
 tools/perf/util/symbol-elf.c                       |   12 +-
 tools/perf/util/symbol-minimal.c                   |    2 +-
 tools/perf/util/symbol.c                           |   21 +-
 tools/perf/util/symbol.h                           |    7 +-
 80 files changed, 4054 insertions(+), 2479 deletions(-)
 create mode 100644 tools/perf/tests/shell/lib/probe_vfs_getname.sh
 create mode 100755 tools/perf/tests/shell/probe_vfs_getname.sh
 create mode 100755 tools/perf/tests/shell/record+script_probe_vfs_getname.sh
 create mode 100755 tools/perf/tests/shell/trace+probe_libc_inet_pton.sh
 create mode 100755 tools/perf/tests/shell/trace+probe_vfs_getname.sh

Test results:

The first ones are container (docker) based builds of tools/perf with and
without libelf support, objtool where it is supported and samples/bpf/, ditto.
Where clang is available, it is also used to build perf with/without libelf.

Several are cross builds, the ones with -x-ARCH, and the android one, and those
may not have all the features built, due to lack of multi-arch devel packages,
available and being used so far on just a few, like
debian:experimental-x-{arm64,mipsel}.

The 'perf test' one will perform a variety of tests exercising
tools/perf/util/, tools/lib/{bpf,traceevent,etc}, as well as run perf
commands with a variety of command line event specifications to then
intercept the sys_perf_event syscall to check that the perf_event_attr
fields are set up as expected, among a variety of other unit tests.

The 'perf test'  also runs shell scripts exercising the tools, checking
if they affect the system in certain ways, like setting up kprobes and
uprobes, request callchains for well known programs and check that they
are the expected ones, see if 'perf trace' beautifies system call
arguments correctly, etc.

Additionally, a new set of tests, script based, runs the tools in a live system,
setting probes in place that then gets used by 'perf trace', with its output
compared against expected results.

Then there is the 'make -C tools/perf build-test' ones, that build tools/perf/
with a variety of feature sets, exercising the build with an incomplete set of
features as well as with a complete one. It is planned to have it run on each
of the containers mentioned above, using some container orchestration
infrastructure. Get in contact if interested in helping having this in place.

  # dm
   1 alpine:3.4: Ok
   2 alpine:3.5: Ok
   3 alpine:3.6: Ok
   4 alpine:edge: Ok
   5 android-ndk:r12b-arm: Ok
   6 archlinux:latest: Ok
   7 centos:5: Ok
   8 centos:6: Ok
   9 centos:7: Ok
  10 debian:7: Ok
  11 debian:8: Ok
  12 debian:9: Ok
  13 debian:experimental: Ok
  14 debian:experimental-x-arm64: Ok
  15 debian:experimental-x-mips: Ok
  16 debian:experimental-x-mips64: Ok
  17 debian:experimental-x-mipsel: Ok
  18 fedora:20: Ok
  19 fedora:21: Ok
  20 fedora:22: Ok
  21 fedora:23: Ok
  22 fedora:24: Ok
  23 fedora:24-x-ARC-uClibc: Ok
  24 fedora:25: Ok
  25 fedora:26: Ok
  26 fedora:rawhide: Ok
  27 mageia:5: Ok
  28 opensuse:13.2: Ok
  29 opensuse:42.1: Ok
  30 opensuse:42.2: Ok
  31 opensuse:tumbleweed: Ok
  32 oraclelinux:6: Ok
  33 oraclelinux:7: Ok
  34 ubuntu:12.04.5: Ok
  35 ubuntu:14.04.4: Ok
  36 ubuntu:14.04.4-x-linaro-arm64: Ok
  37 ubuntu:15.10: Ok
  38 ubuntu:16.04: Ok
  39 ubuntu:16.04-x-arm: Ok
  40 ubuntu:16.04-x-arm64: Ok
  41 ubuntu:16.04-x-powerpc: Ok
  42 ubuntu:16.04-x-powerpc64: Ok
  43 ubuntu:16.04-x-powerpc64el: Ok
  44 ubuntu:16.04-x-s390: Ok
  45 ubuntu:16.10: Ok
  46 ubuntu:17.04: Ok
  47 ubuntu:17.10: Ok
  #
  # uname -a
  Linux jouet 4.13.0-rc4+ #2 SMP Fri Aug 11 12:39:09 -03 2017 x86_64 x86_64 x86_64 GNU/Linux
  # perf test
   1: vmlinux symtab matches kallsyms                       : Ok
   2: Detect openat syscall event                           : Ok
   3: Detect openat syscall event on all cpus               : Ok
   4: Read samples using the mmap interface                 : Ok
   5: Parse event definition strings                        : Ok
   6: Simple expression parser                              : Ok
   7: PERF_RECORD_* events & perf_sample fields             : Ok
   8: Parse perf pmu format                                 : Ok
   9: DSO data read                                         : Ok
  10: DSO data cache                                        : Ok
  11: DSO data reopen                                       : Ok
  12: Roundtrip evsel->name                                 : Ok
  13: Parse sched tracepoints fields                        : Ok
  14: syscalls:sys_enter_openat event fields                : Ok
  15: Setup struct perf_event_attr                          : Ok
  16: Match and link multiple hists                         : Ok
  17: 'import perf' in python                               : Ok
  18: Breakpoint overflow signal handler                    : Ok
  19: Breakpoint overflow sampling                          : Ok
  20: Number of exit events of a simple workload            : Ok
  21: Software clock events period values                   : Ok
  22: Object code reading                                   : Ok
  23: Sample parsing                                        : Ok
  24: Use a dummy software event to keep tracking           : Ok
  25: Parse with no sample_id_all bit set                   : Ok
  26: Filter hist entries                                   : Ok
  27: Lookup mmap thread                                    : Ok
  28: Share thread mg                                       : Ok
  29: Sort output of hist entries                           : Ok
  30: Cumulate child hist entries                           : Ok
  31: Track with sched_switch                               : Ok
  32: Filter fds with revents mask in a fdarray             : Ok
  33: Add fd to a fdarray, making it autogrow               : Ok
  34: kmod_path__parse                                      : Ok
  35: Thread map                                            : Ok
  36: LLVM search and compile                               :
  36.1: Basic BPF llvm compile                              : Ok
  36.2: kbuild searching                                    : Ok
  36.3: Compile source for BPF prologue generation          : Ok
  36.4: Compile source for BPF relocation                   : Ok
  37: Session topology                                      : Ok
  38: BPF filter                                            :
  38.1: Basic BPF filtering                                 : Ok
  38.2: BPF pinning                                         : Ok
  38.3: BPF prologue generation                             : Ok
  38.4: BPF relocation checker                              : Ok
  39: Synthesize thread map                                 : Ok
  40: Remove thread map                                     : Ok
  41: Synthesize cpu map                                    : Ok
  42: Synthesize stat config                                : Ok
  43: Synthesize stat                                       : Ok
  44: Synthesize stat round                                 : Ok
  45: Synthesize attr update                                : Ok
  46: Event times                                           : Ok
  47: Read backward ring buffer                             : Ok
  48: Print cpu map                                         : Ok
  49: Probe SDT events                                      : Ok
  50: is_printable_array                                    : Ok
  51: Print bitmap                                          : Ok
  52: perf hooks                                            : Ok
  53: builtin clang support                                 : Skip (not compiled in)
  54: unit_number__scnprintf                                : Ok
  55: x86 rdpmc                                             : Ok
  56: Convert perf time to TSC                              : Ok
  57: DWARF unwind                                          : Ok
  58: x86 instruction decoder - new instructions            : Ok
  59: Intel cqm nmi context read                            : Skip
  60: Use vfs_getname probe to get syscall args filenames   : Ok
  61: probe libc's inet_pton & backtrace it with ping       : Ok
  62: Check open filename arg using perf trace + vfs_getname: Ok
  63: Add vfs_getname probe to get syscall args filenames   : Ok
  #

  # The static build test works on Fedora 25, is failing on Fedora 26,
  # this issue is being investigated.
  
  $ make -C tools/perf build-test
  make: Entering directory '/home/acme/git/linux/tools/perf'
  - tarpkg: ./tests/perf-targz-src-pkg .
               make_no_slang_O: make NO_SLANG=1
         make_install_prefix_O: make install prefix=/tmp/krava
            make_install_bin_O: make install-bin
                  make_debug_O: make DEBUG=1
              make_clean_all_O: make clean all
   make_install_prefix_slash_O: make install prefix=/tmp/krava/
            make_no_auxtrace_O: make NO_AUXTRACE=1
        make_with_babeltrace_O: make LIBBABELTRACE=1
                make_minimal_O: make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1
           make_no_libpython_O: make NO_LIBPYTHON=1
            make_no_libaudit_O: make NO_LIBAUDIT=1
                   make_help_O: make help
            make_no_demangle_O: make NO_DEMANGLE=1
  make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
           make_no_libunwind_O: make NO_LIBUNWIND=1
                make_install_O: make install
             make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
                make_no_newt_O: make NO_NEWT=1
       make_util_pmu_bison_o_O: make util/pmu-bison.o
                 make_perf_o_O: make perf.o
                make_no_gtk2_O: make NO_GTK2=1
                  make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
              make_no_libbpf_O: make NO_LIBBPF=1
         make_with_clangllvm_O: make LIBCLANGLLVM=1
                   make_tags_O: make tags
             make_util_map_o_O: make util/map.o
                   make_pure_O: make
             make_no_libperl_O: make NO_LIBPERL=1
           make_no_libbionic_O: make NO_LIBBIONIC=1
           make_no_backtrace_O: make NO_BACKTRACE=1
             make_no_libnuma_O: make NO_LIBNUMA=1
              make_no_libelf_O: make NO_LIBELF=1
                    make_doc_O: make doc
  OK
  make: Leaving directory '/home/acme/git/linux/tools/perf'
  $

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> Test results at the end of this message, as usual.
> 
> The following changes since commit 84e5b549214f2160c12318aac549de85f600c79a:
> 
>   Merge tag 'perf-core-for-mingo-4.11-20170306' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2017-03-07 08:14:14 +0100)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.12-20170314
> 
> for you to fetch changes up to 5f6bee34707973ea7879a7857fd63ddccc92fff3:
> 
>   kprobes: Convert kprobe_exceptions_notify to use NOKPROBE_SYMBOL (2017-03-14 15:17:40 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> New features:
> 
> - Add PERF_RECORD_NAMESPACES so that the kernel can record information
>   required to associate samples to namespaces, helping in container
>   problem characterization.
> 
>   Now the 'perf record has a --namespace' option to ask for such info,
>   and when present, it can be used, initially, via a new sort order,
>   'cgroup_id', allowing histogram entry bucketization by a (device, inode)
>   based cgroup identifier (Hari Bathini)
> 
> - Add --next option to 'perf sched timehist', showing what is the next
>   thread to run (Brendan Gregg)
> 
> Fixes:
> 
> - Fix segfault with basic block 'cycles' sort dimension (Changbin Du)
> 
> - Add c2c to command-list.txt, making it appear in the 'perf help'
>   output (Changbin Du)
> 
> - Fix zeroing of 'abs_path' variable in the perf hists browser switch
>   file code (Changbin Du)
> 
> - Hide tips messages when -q/--quiet is given to 'perf report' (Namhyung Kim)
> 
> Infrastructure:
> 
> - Use ref_reloc_sym + offset to setup kretprobes (Naveen Rao)
> 
> - Ignore generated files pmu-events/{jevents,pmu-events.c} for git (Changbin Du)
> 
> Documentation:
> 
> - Document +field style argument support for --field option (Changbin Du)
> 
> - Clarify 'perf c2c --stats' help message (Namhyung Kim)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Brendan Gregg (1):
>       perf sched timehist: Add --next option
> 
> Changbin Du (5):
>       perf tools: Missing c2c command in command-list
>       perf tools: Ignore generated files pmu-events/{jevents,pmu-events.c} for git
>       perf sort: Fix segfault with basic block 'cycles' sort dimension
>       perf report: Document +field style argument support for --field option
>       perf hists browser: Fix typo in function switch_data_file
> 
> Hari Bathini (5):
>       perf: Add PERF_RECORD_NAMESPACES to include namespaces related info
>       perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info
>       perf record: Synthesize namespace events for current processes
>       perf script: Add script print support for namespace events
>       perf tools: Add 'cgroup_id' sort order keyword
> 
> Namhyung Kim (3):
>       perf report: Hide tip message when -q option is given
>       perf c2c: Clarify help message of --stats option
>       perf c2c: Fix display bug when using pipe
> 
> Naveen N. Rao (5):
>       perf probe: Factor out the ftrace README scanning
>       perf kretprobes: Offset from reloc_sym if kernel supports it
>       perf powerpc: Choose local entry point with kretprobes
>       doc: trace/kprobes: add information about NOKPROBE_SYMBOL
>       kprobes: Convert kprobe_exceptions_notify to use NOKPROBE_SYMBOL
> 
>  Documentation/trace/kprobetrace.txt         |   5 +-
>  include/linux/perf_event.h                  |   2 +
>  include/uapi/linux/perf_event.h             |  32 +++++-
>  kernel/events/core.c                        | 139 ++++++++++++++++++++++++++
>  kernel/fork.c                               |   2 +
>  kernel/kprobes.c                            |   5 +-
>  kernel/nsproxy.c                            |   3 +
>  tools/include/uapi/linux/perf_event.h       |  32 +++++-
>  tools/perf/.gitignore                       |   2 +
>  tools/perf/Documentation/perf-record.txt    |   3 +
>  tools/perf/Documentation/perf-report.txt    |   7 +-
>  tools/perf/Documentation/perf-sched.txt     |   4 +
>  tools/perf/Documentation/perf-script.txt    |   3 +
>  tools/perf/arch/powerpc/util/sym-handling.c |  14 ++-
>  tools/perf/builtin-annotate.c               |   1 +
>  tools/perf/builtin-c2c.c                    |   4 +-
>  tools/perf/builtin-diff.c                   |   1 +
>  tools/perf/builtin-inject.c                 |  13 +++
>  tools/perf/builtin-kmem.c                   |   1 +
>  tools/perf/builtin-kvm.c                    |   2 +
>  tools/perf/builtin-lock.c                   |   1 +
>  tools/perf/builtin-mem.c                    |   1 +
>  tools/perf/builtin-record.c                 |  35 ++++++-
>  tools/perf/builtin-report.c                 |   4 +-
>  tools/perf/builtin-sched.c                  |  26 ++++-
>  tools/perf/builtin-script.c                 |  41 ++++++++
>  tools/perf/builtin-trace.c                  |   3 +-
>  tools/perf/command-list.txt                 |   1 +
>  tools/perf/perf.h                           |   1 +
>  tools/perf/ui/browsers/hists.c              |   2 +-
>  tools/perf/util/Build                       |   1 +
>  tools/perf/util/data-convert-bt.c           |   1 +
>  tools/perf/util/event.c                     | 150 ++++++++++++++++++++++++++--
>  tools/perf/util/event.h                     |  19 ++++
>  tools/perf/util/evsel.c                     |   3 +
>  tools/perf/util/hist.c                      |   7 ++
>  tools/perf/util/hist.h                      |   1 +
>  tools/perf/util/machine.c                   |  34 +++++++
>  tools/perf/util/machine.h                   |   3 +
>  tools/perf/util/namespaces.c                |  36 +++++++
>  tools/perf/util/namespaces.h                |  26 +++++
>  tools/perf/util/probe-event.c               |  12 +--
>  tools/perf/util/probe-file.c                |  77 ++++++++------
>  tools/perf/util/probe-file.h                |   1 +
>  tools/perf/util/session.c                   |   7 ++
>  tools/perf/util/sort.c                      |  46 +++++++++
>  tools/perf/util/sort.h                      |   7 ++
>  tools/perf/util/thread.c                    |  44 +++++++-
>  tools/perf/util/thread.h                    |   6 ++
>  tools/perf/util/tool.h                      |   2 +
>  50 files changed, 799 insertions(+), 74 deletions(-)
>  create mode 100644 tools/perf/util/namespaces.c
>  create mode 100644 tools/perf/util/namespaces.h

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

Test results at the end of this message, as usual.

The following changes since commit 84e5b549214f2160c12318aac549de85f600c79a:

  Merge tag 'perf-core-for-mingo-4.11-20170306' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2017-03-07 08:14:14 +0100)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.12-20170314

for you to fetch changes up to 5f6bee34707973ea7879a7857fd63ddccc92fff3:

  kprobes: Convert kprobe_exceptions_notify to use NOKPROBE_SYMBOL (2017-03-14 15:17:40 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

New features:

- Add PERF_RECORD_NAMESPACES so that the kernel can record information
  required to associate samples to namespaces, helping in container
  problem characterization.

  Now the 'perf record has a --namespace' option to ask for such info,
  and when present, it can be used, initially, via a new sort order,
  'cgroup_id', allowing histogram entry bucketization by a (device, inode)
  based cgroup identifier (Hari Bathini)

- Add --next option to 'perf sched timehist', showing what is the next
  thread to run (Brendan Gregg)

Fixes:

- Fix segfault with basic block 'cycles' sort dimension (Changbin Du)

- Add c2c to command-list.txt, making it appear in the 'perf help'
  output (Changbin Du)

- Fix zeroing of 'abs_path' variable in the perf hists browser switch
  file code (Changbin Du)

- Hide tips messages when -q/--quiet is given to 'perf report' (Namhyung Kim)

Infrastructure:

- Use ref_reloc_sym + offset to setup kretprobes (Naveen Rao)

- Ignore generated files pmu-events/{jevents,pmu-events.c} for git (Changbin Du)

Documentation:

- Document +field style argument support for --field option (Changbin Du)

- Clarify 'perf c2c --stats' help message (Namhyung Kim)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Brendan Gregg (1):
      perf sched timehist: Add --next option

Changbin Du (5):
      perf tools: Missing c2c command in command-list
      perf tools: Ignore generated files pmu-events/{jevents,pmu-events.c} for git
      perf sort: Fix segfault with basic block 'cycles' sort dimension
      perf report: Document +field style argument support for --field option
      perf hists browser: Fix typo in function switch_data_file

Hari Bathini (5):
      perf: Add PERF_RECORD_NAMESPACES to include namespaces related info
      perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info
      perf record: Synthesize namespace events for current processes
      perf script: Add script print support for namespace events
      perf tools: Add 'cgroup_id' sort order keyword

Namhyung Kim (3):
      perf report: Hide tip message when -q option is given
      perf c2c: Clarify help message of --stats option
      perf c2c: Fix display bug when using pipe

Naveen N. Rao (5):
      perf probe: Factor out the ftrace README scanning
      perf kretprobes: Offset from reloc_sym if kernel supports it
      perf powerpc: Choose local entry point with kretprobes
      doc: trace/kprobes: add information about NOKPROBE_SYMBOL
      kprobes: Convert kprobe_exceptions_notify to use NOKPROBE_SYMBOL

 Documentation/trace/kprobetrace.txt         |   5 +-
 include/linux/perf_event.h                  |   2 +
 include/uapi/linux/perf_event.h             |  32 +++++-
 kernel/events/core.c                        | 139 ++++++++++++++++++++++++++
 kernel/fork.c                               |   2 +
 kernel/kprobes.c                            |   5 +-
 kernel/nsproxy.c                            |   3 +
 tools/include/uapi/linux/perf_event.h       |  32 +++++-
 tools/perf/.gitignore                       |   2 +
 tools/perf/Documentation/perf-record.txt    |   3 +
 tools/perf/Documentation/perf-report.txt    |   7 +-
 tools/perf/Documentation/perf-sched.txt     |   4 +
 tools/perf/Documentation/perf-script.txt    |   3 +
 tools/perf/arch/powerpc/util/sym-handling.c |  14 ++-
 tools/perf/builtin-annotate.c               |   1 +
 tools/perf/builtin-c2c.c                    |   4 +-
 tools/perf/builtin-diff.c                   |   1 +
 tools/perf/builtin-inject.c                 |  13 +++
 tools/perf/builtin-kmem.c                   |   1 +
 tools/perf/builtin-kvm.c                    |   2 +
 tools/perf/builtin-lock.c                   |   1 +
 tools/perf/builtin-mem.c                    |   1 +
 tools/perf/builtin-record.c                 |  35 ++++++-
 tools/perf/builtin-report.c                 |   4 +-
 tools/perf/builtin-sched.c                  |  26 ++++-
 tools/perf/builtin-script.c                 |  41 ++++++++
 tools/perf/builtin-trace.c                  |   3 +-
 tools/perf/command-list.txt                 |   1 +
 tools/perf/perf.h                           |   1 +
 tools/perf/ui/browsers/hists.c              |   2 +-
 tools/perf/util/Build                       |   1 +
 tools/perf/util/data-convert-bt.c           |   1 +
 tools/perf/util/event.c                     | 150 ++++++++++++++++++++++++++--
 tools/perf/util/event.h                     |  19 ++++
 tools/perf/util/evsel.c                     |   3 +
 tools/perf/util/hist.c                      |   7 ++
 tools/perf/util/hist.h                      |   1 +
 tools/perf/util/machine.c                   |  34 +++++++
 tools/perf/util/machine.h                   |   3 +
 tools/perf/util/namespaces.c                |  36 +++++++
 tools/perf/util/namespaces.h                |  26 +++++
 tools/perf/util/probe-event.c               |  12 +--
 tools/perf/util/probe-file.c                |  77 ++++++++------
 tools/perf/util/probe-file.h                |   1 +
 tools/perf/util/session.c                   |   7 ++
 tools/perf/util/sort.c                      |  46 +++++++++
 tools/perf/util/sort.h                      |   7 ++
 tools/perf/util/thread.c                    |  44 +++++++-
 tools/perf/util/thread.h                    |   6 ++
 tools/perf/util/tool.h                      |   2 +
 50 files changed, 799 insertions(+), 74 deletions(-)
 create mode 100644 tools/perf/util/namespaces.c
 create mode 100644 tools/perf/util/namespaces.h

Test results:

The first ones are container (docker) based builds of tools/perf with and
without libelf support, objtool where it is supported and samples/bpf/, ditto.
Where clang is available, it is also used to build perf with/without libelf.

Several are cross builds, the ones with -x-ARCH, and the android one, and those
may not have all the features built, due to lack of multi-arch devel packages,
available and being used so far on just a few, like
debian:experimental-x-{arm64,mipsel}.

The 'perf test' one will perform a variety of tests exercising
tools/perf/util/, tools/lib/{bpf,traceevent,etc}, as well as run perf commands
with a variety of command line event specifications to then intercept the
sys_perf_event syscall to check that the perf_event_attr fields are set up as
expected, among a variety of other unit tests.

Then there is the 'make -C tools/perf build-test' ones, that build tools/perf/
with a variety of feature sets, exercising the build with an incomplete set of
features as well as with a complete one. It is planned to have it run on each
of the containers mentioned above, using some container orchestration
infrastructure. Get in contact if interested in helping having this in place.

  # dm
   1 alpine:3.4: Ok
   2 alpine:3.5: Ok
   3 alpine:edge: Ok
   4 android-ndk:r12b-arm: Ok
   5 archlinux:latest: Ok
   6 centos:5: Ok
   7 centos:6: Ok
   8 centos:7: Ok
   9 debian:7: Ok
  10 debian:8: Ok
  11 debian:experimental: Ok
  12 debian:experimental-x-arm64: Ok
  13 debian:experimental-x-mips: Ok
  14 debian:experimental-x-mips64: Ok
  15 debian:experimental-x-mipsel: Ok
  16 fedora:20: Ok
  17 fedora:21: Ok
  18 fedora:22: Ok
  19 fedora:23: Ok
  20 fedora:24: Ok
  21 fedora:24-x-ARC-uClibc: Ok
  22 fedora:25: Ok
  23 fedora:rawhide: Ok
  24 mageia:5: Ok
  25 opensuse:13.2: Ok
  26 opensuse:42.1: Ok
  27 opensuse:tumbleweed: Ok
  28 ubuntu:12.04.5: Ok
  29 ubuntu:14.04.4: Ok
  30 ubuntu:14.04.4-x-linaro-arm64: Ok
  31 ubuntu:15.10: Ok
  32 ubuntu:16.04: Ok
  33 ubuntu:16.04-x-arm: Ok
  34 ubuntu:16.04-x-arm64: Ok
  35 ubuntu:16.04-x-powerpc: Ok
  36 ubuntu:16.04-x-powerpc64: Ok
  37 ubuntu:16.04-x-s390: Ok
  38 ubuntu:16.10: Ok
  39 ubuntu:17.04: Ok
  #

  # uname -a
  Linux zoo 4.9.13-100.fc24.x86_64 #1 SMP Mon Feb 27 16:57:22 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
  # perf test
   1: vmlinux symtab matches kallsyms            : Ok
   2: Detect openat syscall event                : Ok
   3: Detect openat syscall event on all cpus    : Ok
   4: Read samples using the mmap interface      : Ok
   5: Parse event definition strings             : Ok
   6: PERF_RECORD_* events & perf_sample fields  : Ok
   7: Parse perf pmu format                      : Ok
   8: DSO data read                              : Ok
   9: DSO data cache                             : Ok
  10: DSO data reopen                            : Ok
  11: Roundtrip evsel->name                      : Ok
  12: Parse sched tracepoints fields             : Ok
  13: syscalls:sys_enter_openat event fields     : Ok
  14: Setup struct perf_event_attr               : Ok
  15: Match and link multiple hists              : Ok
  16: 'import perf' in python                    : Ok
  17: Breakpoint overflow signal handler         : Ok
  18: Breakpoint overflow sampling               : Ok
  19: Number of exit events of a simple workload : Ok
  20: Software clock events period values        : Ok
  21: Object code reading                        : Ok
  22: Sample parsing                             : Ok
  23: Use a dummy software event to keep tracking: Ok
  24: Parse with no sample_id_all bit set        : Ok
  25: Filter hist entries                        : Ok
  26: Lookup mmap thread                         : Ok
  27: Share thread mg                            : Ok
  28: Sort output of hist entries                : Ok
  29: Cumulate child hist entries                : Ok
  30: Track with sched_switch                    : Ok
  31: Filter fds with revents mask in a fdarray  : Ok
  32: Add fd to a fdarray, making it autogrow    : Ok
  33: kmod_path__parse                           : Ok
  34: Thread map                                 : Ok
  35: LLVM search and compile                    :
  35.1: Basic BPF llvm compile                    : Ok
  35.2: kbuild searching                          : Ok
  35.3: Compile source for BPF prologue generation: Ok
  35.4: Compile source for BPF relocation         : Ok
  36: Session topology                           : Ok
  37: BPF filter                                 :
  37.1: Basic BPF filtering                      : Ok
  37.2: BPF pinning                              : Ok
  37.3: BPF prologue generation                  : Ok
  37.4: BPF relocation checker                   : Ok
  38: Synthesize thread map                      : Ok
  39: Remove thread map                          : Ok
  40: Synthesize cpu map                         : Ok
  41: Synthesize stat config                     : Ok
  42: Synthesize stat                            : Ok
  43: Synthesize stat round                      : Ok
  44: Synthesize attr update                     : Ok
  45: Event times                                : Ok
  46: Read backward ring buffer                  : Ok
  47: Print cpu map                              : Ok
  48: Probe SDT events                           : Ok
  49: is_printable_array                         : Ok
  50: Print bitmap                               : Ok
  51: perf hooks                                 : Ok
  52: builtin clang support                      : Skip (not compiled in)
  53: unit_number__scnprintf                     : Ok
  54: x86 rdpmc                                  : Ok
  55: Convert perf time to TSC                   : Ok
  56: DWARF unwind                               : Ok
  57: x86 instruction decoder - new instructions : Ok
  58: Intel cqm nmi context read                 : Skip
  # 

  $ make -C tools/perf build-test
  make: Entering directory '/home/acme/git/linux/tools/perf'
  - tarpkg: ./tests/perf-targz-src-pkg .
                  make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
                  make_debug_O: make DEBUG=1
              make_no_libelf_O: make NO_LIBELF=1
           make_no_libbionic_O: make NO_LIBBIONIC=1
            make_no_libaudit_O: make NO_LIBAUDIT=1
                   make_pure_O: make
              make_no_libbpf_O: make NO_LIBBPF=1
                   make_tags_O: make tags
        make_with_babeltrace_O: make LIBBABELTRACE=1
         make_with_clangllvm_O: make LIBCLANGLLVM=1
            make_no_auxtrace_O: make NO_AUXTRACE=1
                 make_perf_o_O: make perf.o
            make_no_demangle_O: make NO_DEMANGLE=1
              make_clean_all_O: make clean all
               make_no_slang_O: make NO_SLANG=1
                    make_doc_O: make doc
                make_no_newt_O: make NO_NEWT=1
           make_no_libpython_O: make NO_LIBPYTHON=1
       make_util_pmu_bison_o_O: make util/pmu-bison.o
            make_install_bin_O: make install-bin
                make_no_gtk2_O: make NO_GTK2=1
           make_no_backtrace_O: make NO_BACKTRACE=1
             make_no_libnuma_O: make NO_LIBNUMA=1
  make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
             make_util_map_o_O: make util/map.o
             make_no_libperl_O: make NO_LIBPERL=1
                 make_static_O: make LDFLAGS=-static
           make_no_libunwind_O: make NO_LIBUNWIND=1
                make_minimal_O: make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1
                   make_help_O: make help
             make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
  OK
  $

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> Test results at the end of this message, as usual.
> 
> The following changes since commit 2471cece40d61b0035360338569d338f9dea6099:
> 
>   Merge tag 'perf-core-for-mingo-20161125' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-11-25 18:12:41 +0100)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20161201
> 
> for you to fetch changes up to 0fcb1da4aba6e6c7b32de5e0948b740b31ad822d:
> 
>   perf annotate: AArch64 support (2016-12-01 13:03:19 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> New features:
> 
> - Support AArch64 in the 'annotate' code, native/local and
>   cross-arch/remote (Kim Phillips)
> 
> - Allow considering just events in a given time interval, via the
>   '--time start.s.ms,end.s.ms' command line, added to 'perf kmem',
>   'perf report', 'perf sched timehist' and 'perf script' (David Ahern)
> 
> - Add option to stop printing a callchain at one of a given group of
>   symbol names (David Ahern)
> 
> - Handle cpu migration events in 'perf sched timehist' (David Ahern)
> 
> - Track memory freed in 'perf kmem stat' (David Ahern)
> 
> Infrastructure:
> 
> - Initial support (and perf test entry) for tooling hooks, starting with
>   'record_start' and 'record_end', that will have as its initial user the
>   eBPF infrastructure, where perf_ prefixed functions will be JITed and
>   run when such hooks are called (Wang Nan)
> 
> - Remove redundant "test" and similar strings from 'perf test' descriptions
>   (Arnaldo Carvalho de Melo)
> 
> - libbpf assorted improvements (Wang Nan)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (3):
>       perf ui helpline: Provide a printf variant
>       perf annotate: Show invalid jump offset in error message
>       perf test: Remove "test" and similar strings from test descriptions
> 
> David Ahern (10):
>       perf sched timehist: Handle cpu migration events
>       perf trace: Update tid/pid filtering option to leverage symbol_conf
>       perf kmem stat: Track memory freed
>       perf script: Add option to stop printing callchain
>       perf tools: Add time-based utility functions
>       perf tools: Move parse_nsec_time to time-utils.c
>       perf script: Add option to specify time window of interest
>       perf sched timehist: Add option to specify time window of interest
>       perf kmem: Add option to specify time window of interest
>       perf report: Add option to specify time window of interest
> 
> Kim Phillips (2):
>       perf annotate: Use arch->objdump.comment_char in dec__parse()
>       perf annotate: AArch64 support
> 
> Wang Nan (4):
>       tools lib bpf: Add missing BPF functions
>       tools lib bpf: Add private field for bpf_object
>       tools lib bpf: Retrive bpf_map through offset of bpf_map_def
>       perf tools: Introduce perf hooks
> 
>  tools/lib/bpf/bpf.c                           |  56 ++++++++++
>  tools/lib/bpf/bpf.h                           |   7 ++
>  tools/lib/bpf/libbpf.c                        |  35 ++++++
>  tools/lib/bpf/libbpf.h                        |  13 +++
>  tools/perf/Documentation/perf-kmem.txt        |   7 ++
>  tools/perf/Documentation/perf-report.txt      |   7 ++
>  tools/perf/Documentation/perf-sched.txt       |  12 +++
>  tools/perf/Documentation/perf-script.txt      |  10 ++
>  tools/perf/arch/arm64/annotate/instructions.c |  62 +++++++++++
>  tools/perf/arch/x86/tests/arch-tests.c        |  10 +-
>  tools/perf/builtin-kmem.c                     |  36 ++++++-
>  tools/perf/builtin-record.c                   |  11 ++
>  tools/perf/builtin-report.c                   |  14 ++-
>  tools/perf/builtin-sched.c                    | 148 ++++++++++++++++++++++++--
>  tools/perf/builtin-script.c                   |  17 ++-
>  tools/perf/builtin-trace.c                    |  49 ++-------
>  tools/perf/tests/Build                        |   1 +
>  tools/perf/tests/bpf.c                        |   6 +-
>  tools/perf/tests/builtin-test.c               |  96 +++++++++--------
>  tools/perf/tests/llvm.c                       |   8 +-
>  tools/perf/tests/perf-hooks.c                 |  44 ++++++++
>  tools/perf/tests/tests.h                      |   1 +
>  tools/perf/ui/browsers/annotate.c             |   6 +-
>  tools/perf/ui/helpline.c                      |  10 ++
>  tools/perf/ui/helpline.h                      |   1 +
>  tools/perf/util/Build                         |   3 +
>  tools/perf/util/annotate.c                    |   7 +-
>  tools/perf/util/evsel_fprintf.c               |   8 ++
>  tools/perf/util/perf-hooks-list.h             |   3 +
>  tools/perf/util/perf-hooks.c                  |  84 +++++++++++++++
>  tools/perf/util/perf-hooks.h                  |  37 +++++++
>  tools/perf/util/symbol.c                      |   8 ++
>  tools/perf/util/symbol.h                      |   6 +-
>  tools/perf/util/time-utils.c                  | 119 +++++++++++++++++++++
>  tools/perf/util/time-utils.h                  |  14 +++
>  tools/perf/util/util.c                        |  33 ------
>  tools/perf/util/util.h                        |   2 -
>  37 files changed, 842 insertions(+), 149 deletions(-)
>  create mode 100644 tools/perf/arch/arm64/annotate/instructions.c
>  create mode 100644 tools/perf/tests/perf-hooks.c
>  create mode 100644 tools/perf/util/perf-hooks-list.h
>  create mode 100644 tools/perf/util/perf-hooks.c
>  create mode 100644 tools/perf/util/perf-hooks.h
>  create mode 100644 tools/perf/util/time-utils.c
>  create mode 100644 tools/perf/util/time-utils.h
> 
>   # uname -a
>   Linux jouet 4.8.8-300.fc25.x86_64 #1 SMP Tue Nov 15 18:10:06 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
>   # perf test
>    1: vmlinux symtab matches kallsyms            : Ok
>    2: Detect openat syscall event                : Ok
>    3: Detect openat syscall event on all cpus    : Ok
>    4: Read samples using the mmap interface      : Ok
>    5: Parse event definition strings             : Ok
>    6: PERF_RECORD_* events & perf_sample fields  : Ok
>    7: Parse perf pmu format                      : Ok
>    8: DSO data read                              : Ok
>    9: DSO data cache                             : Ok
>   10: DSO data reopen                            : Ok
>   11: Roundtrip evsel->name                      : Ok
>   12: Parse sched tracepoints fields             : Ok
>   13: syscalls:sys_enter_openat event fields     : Ok
>   14: Setup struct perf_event_attr               : Ok
>   15: Match and link multiple hists              : Ok
>   16: 'import perf' in python                    : Ok
>   17: Breakpoint overflow signal handler         : Ok
>   18: Breakpoint overflow sampling               : Ok
>   19: Number of exit events of a simple workload : Ok
>   20: Software clock events period values        : Ok
>   21: Object code reading                        : Ok
>   22: Sample parsing                             : Ok
>   23: Use a dummy software event to keep tracking: Ok
>   24: Parse with no sample_id_all bit set        : Ok
>   25: Filter hist entries                        : Ok
>   26: Lookup mmap thread                         : Ok
>   27: Share thread mg                            : Ok
>   28: Sort output of hist entries                : Ok
>   29: Cumulate child hist entries                : Ok
>   30: Track with sched_switch                    : Ok
>   31: Filter fds with revents mask in a fdarray  : Ok
>   32: Add fd to a fdarray, making it autogrow    : Ok
>   33: kmod_path__parse                           : Ok
>   34: Thread map                                 : Ok
>   35: LLVM search and compile                    :
>   35.1: Basic BPF llvm compile                    : Ok
>   35.2: kbuild searching                          : Ok
>   35.3: Compile source for BPF prologue generation: Ok
>   35.4: Compile source for BPF relocation         : Ok
>   36: Session topology                           : Ok
>   37: BPF filter                                 :
>   37.1: Basic BPF filtering                      : Ok
>   37.2: BPF prologue generation                  : Ok
>   37.3: BPF relocation checker                   : Ok
>   38: Synthesize thread map                      : Ok
>   39: Synthesize cpu map                         : Ok
>   40: Synthesize stat config                     : Ok
>   41: Synthesize stat                            : Ok
>   42: Synthesize stat round                      : Ok
>   43: Synthesize attr update                     : Ok
>   44: Event times                                : Ok
>   45: Read backward ring buffer                  : Ok
>   46: Print cpu map                              : Ok
>   47: Probe SDT events                           : Ok
>   48: is_printable_array                         : Ok
>   49: Print bitmap                               : Ok
>   50: perf hooks                                 : Ok
>   51: x86 rdpmc                                  : Ok
>   52: Convert perf time to TSC                   : Ok
>   53: DWARF unwind                               : Ok
>   54: x86 instruction decoder - new instructions : Ok
>   55: Intel cqm nmi context read                 : Skip
>   # 
>   # uname -a
>   Linux zoo 4.7.3-200.fc24.x86_64 #1 SMP Wed Sep 7 17:31:21 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
>   # dm
>    1 alpine:3.4: Ok
>    2 android-ndk:r12b-arm: Ok
>    3 archlinux:latest: Ok
>    4 centos:5: Ok
>    5 centos:6: Ok
>    6 centos:7: Ok
>    7 debian:7: Ok
>    8 debian:8: Ok
>    9 debian:experimental: Ok
>   10 fedora:20: Ok
>   11 fedora:21: Ok
>   12 fedora:22: Ok
>   13 fedora:23: Ok
>   14 fedora:24: Ok
>   15 fedora:24-x-ARC-uClibc: Ok
>   16 fedora:rawhide: Ok
>   17 mageia:5: Ok
>   18 opensuse:13.2: Ok
>   19 opensuse:42.1: Ok
>   20 opensuse:tumbleweed: Ok
>   21 ubuntu:12.04.5: Ok
>   22 ubuntu:14.04: Ok
>   23 ubuntu:14.04.4: Ok
>   24 ubuntu:15.10: Ok
>   25 ubuntu:16.04: Ok
>   26 ubuntu:16.04-x-arm: Ok
>   27 ubuntu:16.04-x-arm64: Ok
>   28 ubuntu:16.04-x-powerpc: Ok
>   29 ubuntu:16.04-x-powerpc64: Ok
>   30 ubuntu:16.04-x-powerpc64el: Ok
>   31 ubuntu:16.04-x-s390: Ok
>   32 ubuntu:16.10: Ok
>   #
>   $ grep PRETTY_NAME /etc/os-release 
>   PRETTY_NAME="Fedora 25 (Workstation Edition)"
>   $ 
>   $ perf stat make -C tools/perf build-test
>   make: Entering directory '/home/acme/git/linux/tools/perf'
>   - tarpkg: ./tests/perf-targz-src-pkg .
>                make_no_slang_O: make NO_SLANG=1
>              make_util_map_o_O: make util/map.o
>                  make_static_O: make LDFLAGS=-static
>   make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
>                  make_perf_o_O: make perf.o
>            make_no_libunwind_O: make NO_LIBUNWIND=1
>               make_no_libelf_O: make NO_LIBELF=1
>        make_util_pmu_bison_o_O: make util/pmu-bison.o
>            make_no_backtrace_O: make NO_BACKTRACE=1
>                   make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
>             make_no_demangle_O: make NO_DEMANGLE=1
>              make_no_libperl_O: make NO_LIBPERL=1
>                    make_tags_O: make tags
>              make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
>    make_install_prefix_slash_O: make install prefix=/tmp/krava/
>             make_no_auxtrace_O: make NO_AUXTRACE=1
>              make_no_libnuma_O: make NO_LIBNUMA=1
>             make_install_bin_O: make install-bin
>                 make_no_newt_O: make NO_NEWT=1
>                    make_pure_O: make
>                 make_minimal_O: make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1
>               make_clean_all_O: make clean all
>                 make_no_gtk2_O: make NO_GTK2=1
>            make_no_libbionic_O: make NO_LIBBIONIC=1
>          make_install_prefix_O: make install prefix=/tmp/krava
>               make_no_libbpf_O: make NO_LIBBPF=1
>             make_no_libaudit_O: make NO_LIBAUDIT=1
>         make_with_babeltrace_O: make LIBBABELTRACE=1
>            make_no_libpython_O: make NO_LIBPYTHON=1
>                    make_help_O: make help
>                     make_doc_O: make doc
>                   make_debug_O: make DEBUG=1
>                 make_install_O: make install
>   OK
>   make: Leaving directory '/home/acme/git/linux/tools/perf'
>   $ 
>   

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

Test results at the end of this message, as usual.

The following changes since commit 2471cece40d61b0035360338569d338f9dea6099:

  Merge tag 'perf-core-for-mingo-20161125' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-11-25 18:12:41 +0100)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20161201

for you to fetch changes up to 0fcb1da4aba6e6c7b32de5e0948b740b31ad822d:

  perf annotate: AArch64 support (2016-12-01 13:03:19 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

New features:

- Support AArch64 in the 'annotate' code, native/local and
  cross-arch/remote (Kim Phillips)

- Allow considering just events in a given time interval, via the
  '--time start.s.ms,end.s.ms' command line, added to 'perf kmem',
  'perf report', 'perf sched timehist' and 'perf script' (David Ahern)

- Add option to stop printing a callchain at one of a given group of
  symbol names (David Ahern)

- Handle cpu migration events in 'perf sched timehist' (David Ahern)

- Track memory freed in 'perf kmem stat' (David Ahern)

Infrastructure:

- Initial support (and perf test entry) for tooling hooks, starting with
  'record_start' and 'record_end', that will have as its initial user the
  eBPF infrastructure, where perf_ prefixed functions will be JITed and
  run when such hooks are called (Wang Nan)

- Remove redundant "test" and similar strings from 'perf test' descriptions
  (Arnaldo Carvalho de Melo)

- libbpf assorted improvements (Wang Nan)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Arnaldo Carvalho de Melo (3):
      perf ui helpline: Provide a printf variant
      perf annotate: Show invalid jump offset in error message
      perf test: Remove "test" and similar strings from test descriptions

David Ahern (10):
      perf sched timehist: Handle cpu migration events
      perf trace: Update tid/pid filtering option to leverage symbol_conf
      perf kmem stat: Track memory freed
      perf script: Add option to stop printing callchain
      perf tools: Add time-based utility functions
      perf tools: Move parse_nsec_time to time-utils.c
      perf script: Add option to specify time window of interest
      perf sched timehist: Add option to specify time window of interest
      perf kmem: Add option to specify time window of interest
      perf report: Add option to specify time window of interest

Kim Phillips (2):
      perf annotate: Use arch->objdump.comment_char in dec__parse()
      perf annotate: AArch64 support

Wang Nan (4):
      tools lib bpf: Add missing BPF functions
      tools lib bpf: Add private field for bpf_object
      tools lib bpf: Retrive bpf_map through offset of bpf_map_def
      perf tools: Introduce perf hooks

 tools/lib/bpf/bpf.c                           |  56 ++++++++++
 tools/lib/bpf/bpf.h                           |   7 ++
 tools/lib/bpf/libbpf.c                        |  35 ++++++
 tools/lib/bpf/libbpf.h                        |  13 +++
 tools/perf/Documentation/perf-kmem.txt        |   7 ++
 tools/perf/Documentation/perf-report.txt      |   7 ++
 tools/perf/Documentation/perf-sched.txt       |  12 +++
 tools/perf/Documentation/perf-script.txt      |  10 ++
 tools/perf/arch/arm64/annotate/instructions.c |  62 +++++++++++
 tools/perf/arch/x86/tests/arch-tests.c        |  10 +-
 tools/perf/builtin-kmem.c                     |  36 ++++++-
 tools/perf/builtin-record.c                   |  11 ++
 tools/perf/builtin-report.c                   |  14 ++-
 tools/perf/builtin-sched.c                    | 148 ++++++++++++++++++++++++--
 tools/perf/builtin-script.c                   |  17 ++-
 tools/perf/builtin-trace.c                    |  49 ++-------
 tools/perf/tests/Build                        |   1 +
 tools/perf/tests/bpf.c                        |   6 +-
 tools/perf/tests/builtin-test.c               |  96 +++++++++--------
 tools/perf/tests/llvm.c                       |   8 +-
 tools/perf/tests/perf-hooks.c                 |  44 ++++++++
 tools/perf/tests/tests.h                      |   1 +
 tools/perf/ui/browsers/annotate.c             |   6 +-
 tools/perf/ui/helpline.c                      |  10 ++
 tools/perf/ui/helpline.h                      |   1 +
 tools/perf/util/Build                         |   3 +
 tools/perf/util/annotate.c                    |   7 +-
 tools/perf/util/evsel_fprintf.c               |   8 ++
 tools/perf/util/perf-hooks-list.h             |   3 +
 tools/perf/util/perf-hooks.c                  |  84 +++++++++++++++
 tools/perf/util/perf-hooks.h                  |  37 +++++++
 tools/perf/util/symbol.c                      |   8 ++
 tools/perf/util/symbol.h                      |   6 +-
 tools/perf/util/time-utils.c                  | 119 +++++++++++++++++++++
 tools/perf/util/time-utils.h                  |  14 +++
 tools/perf/util/util.c                        |  33 ------
 tools/perf/util/util.h                        |   2 -
 37 files changed, 842 insertions(+), 149 deletions(-)
 create mode 100644 tools/perf/arch/arm64/annotate/instructions.c
 create mode 100644 tools/perf/tests/perf-hooks.c
 create mode 100644 tools/perf/util/perf-hooks-list.h
 create mode 100644 tools/perf/util/perf-hooks.c
 create mode 100644 tools/perf/util/perf-hooks.h
 create mode 100644 tools/perf/util/time-utils.c
 create mode 100644 tools/perf/util/time-utils.h

  # uname -a
  Linux jouet 4.8.8-300.fc25.x86_64 #1 SMP Tue Nov 15 18:10:06 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
  # perf test
   1: vmlinux symtab matches kallsyms            : Ok
   2: Detect openat syscall event                : Ok
   3: Detect openat syscall event on all cpus    : Ok
   4: Read samples using the mmap interface      : Ok
   5: Parse event definition strings             : Ok
   6: PERF_RECORD_* events & perf_sample fields  : Ok
   7: Parse perf pmu format                      : Ok
   8: DSO data read                              : Ok
   9: DSO data cache                             : Ok
  10: DSO data reopen                            : Ok
  11: Roundtrip evsel->name                      : Ok
  12: Parse sched tracepoints fields             : Ok
  13: syscalls:sys_enter_openat event fields     : Ok
  14: Setup struct perf_event_attr               : Ok
  15: Match and link multiple hists              : Ok
  16: 'import perf' in python                    : Ok
  17: Breakpoint overflow signal handler         : Ok
  18: Breakpoint overflow sampling               : Ok
  19: Number of exit events of a simple workload : Ok
  20: Software clock events period values        : Ok
  21: Object code reading                        : Ok
  22: Sample parsing                             : Ok
  23: Use a dummy software event to keep tracking: Ok
  24: Parse with no sample_id_all bit set        : Ok
  25: Filter hist entries                        : Ok
  26: Lookup mmap thread                         : Ok
  27: Share thread mg                            : Ok
  28: Sort output of hist entries                : Ok
  29: Cumulate child hist entries                : Ok
  30: Track with sched_switch                    : Ok
  31: Filter fds with revents mask in a fdarray  : Ok
  32: Add fd to a fdarray, making it autogrow    : Ok
  33: kmod_path__parse                           : Ok
  34: Thread map                                 : Ok
  35: LLVM search and compile                    :
  35.1: Basic BPF llvm compile                    : Ok
  35.2: kbuild searching                          : Ok
  35.3: Compile source for BPF prologue generation: Ok
  35.4: Compile source for BPF relocation         : Ok
  36: Session topology                           : Ok
  37: BPF filter                                 :
  37.1: Basic BPF filtering                      : Ok
  37.2: BPF prologue generation                  : Ok
  37.3: BPF relocation checker                   : Ok
  38: Synthesize thread map                      : Ok
  39: Synthesize cpu map                         : Ok
  40: Synthesize stat config                     : Ok
  41: Synthesize stat                            : Ok
  42: Synthesize stat round                      : Ok
  43: Synthesize attr update                     : Ok
  44: Event times                                : Ok
  45: Read backward ring buffer                  : Ok
  46: Print cpu map                              : Ok
  47: Probe SDT events                           : Ok
  48: is_printable_array                         : Ok
  49: Print bitmap                               : Ok
  50: perf hooks                                 : Ok
  51: x86 rdpmc                                  : Ok
  52: Convert perf time to TSC                   : Ok
  53: DWARF unwind                               : Ok
  54: x86 instruction decoder - new instructions : Ok
  55: Intel cqm nmi context read                 : Skip
  # 
  # uname -a
  Linux zoo 4.7.3-200.fc24.x86_64 #1 SMP Wed Sep 7 17:31:21 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
  # dm
   1 alpine:3.4: Ok
   2 android-ndk:r12b-arm: Ok
   3 archlinux:latest: Ok
   4 centos:5: Ok
   5 centos:6: Ok
   6 centos:7: Ok
   7 debian:7: Ok
   8 debian:8: Ok
   9 debian:experimental: Ok
  10 fedora:20: Ok
  11 fedora:21: Ok
  12 fedora:22: Ok
  13 fedora:23: Ok
  14 fedora:24: Ok
  15 fedora:24-x-ARC-uClibc: Ok
  16 fedora:rawhide: Ok
  17 mageia:5: Ok
  18 opensuse:13.2: Ok
  19 opensuse:42.1: Ok
  20 opensuse:tumbleweed: Ok
  21 ubuntu:12.04.5: Ok
  22 ubuntu:14.04: Ok
  23 ubuntu:14.04.4: Ok
  24 ubuntu:15.10: Ok
  25 ubuntu:16.04: Ok
  26 ubuntu:16.04-x-arm: Ok
  27 ubuntu:16.04-x-arm64: Ok
  28 ubuntu:16.04-x-powerpc: Ok
  29 ubuntu:16.04-x-powerpc64: Ok
  30 ubuntu:16.04-x-powerpc64el: Ok
  31 ubuntu:16.04-x-s390: Ok
  32 ubuntu:16.10: Ok
  #
  $ grep PRETTY_NAME /etc/os-release 
  PRETTY_NAME="Fedora 25 (Workstation Edition)"
  $ 
  $ perf stat make -C tools/perf build-test
  make: Entering directory '/home/acme/git/linux/tools/perf'
  - tarpkg: ./tests/perf-targz-src-pkg .
               make_no_slang_O: make NO_SLANG=1
             make_util_map_o_O: make util/map.o
                 make_static_O: make LDFLAGS=-static
  make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
                 make_perf_o_O: make perf.o
           make_no_libunwind_O: make NO_LIBUNWIND=1
              make_no_libelf_O: make NO_LIBELF=1
       make_util_pmu_bison_o_O: make util/pmu-bison.o
           make_no_backtrace_O: make NO_BACKTRACE=1
                  make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
            make_no_demangle_O: make NO_DEMANGLE=1
             make_no_libperl_O: make NO_LIBPERL=1
                   make_tags_O: make tags
             make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
   make_install_prefix_slash_O: make install prefix=/tmp/krava/
            make_no_auxtrace_O: make NO_AUXTRACE=1
             make_no_libnuma_O: make NO_LIBNUMA=1
            make_install_bin_O: make install-bin
                make_no_newt_O: make NO_NEWT=1
                   make_pure_O: make
                make_minimal_O: make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1
              make_clean_all_O: make clean all
                make_no_gtk2_O: make NO_GTK2=1
           make_no_libbionic_O: make NO_LIBBIONIC=1
         make_install_prefix_O: make install prefix=/tmp/krava
              make_no_libbpf_O: make NO_LIBBPF=1
            make_no_libaudit_O: make NO_LIBAUDIT=1
        make_with_babeltrace_O: make LIBBABELTRACE=1
           make_no_libpython_O: make NO_LIBPYTHON=1
                   make_help_O: make help
                    make_doc_O: make doc
                  make_debug_O: make DEBUG=1
                make_install_O: make install
  OK
  make: Leaving directory '/home/acme/git/linux/tools/perf'
  $ 
  

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> The following changes since commit 36e674a05164cdbb9d4a5b1b0b279fabae6c13bd:
> 
>   Merge tag 'perf-core-for-mingo-20160823' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-08-24 11:08:10 +0200)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160901
> 
> for you to fetch changes up to 6243b9dc4c991fe8bdc53a0e029908aef3ddb101:
> 
>   perf probe: Move dwarf specific functions to dwarf-aux.c (2016-09-01 12:42:26 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible:
> 
> - Support generating cross arch probes, i.e. if you specify a vmlinux
>   file for different arch than the one in the host machine,
> 
> 	 $ perf probe --definition function_name args
> 
>   will generate the probe definition string needed to append to the
>   target machine /sys/kernel/debug/tracing/kprobes_events file, using
>   scripting (Masami Hiramatsu).
> 
> - Make 'perf probe' skip the function prologue in uprobes if program
>   compiled without optimization, using the same strategy as gdb and
>   systemtap uses, fixing a bug where:
> 
> 	$ perf probe -x ./test 'foo i'
> 
>   When 'foo(42)' was used on the "./test" executable would produce i=0
>   instead of the expected i=42 (Ravi Bangoria)
> 
> - Demangle symbols for synthesized @plt entries too (Millian Wolff)
> 
> Documentation:
> 
> - Show default report configuration in 'perf config' example
>   and docs (Millian Wolff)
> 
> Infrastructure:
> 
> - Make 'perf test vmlinux' tolerate the symbol aliasing pruning done when
>   loading kallsyms and vmlinux (Arnaldo Carvalho de Melo)
> 
> - Improve output of 'perf test vmlinux' test, to help identify on the verbose
>   output which lines are warning and which are errors (Arnaldo Carvalho de Melo)
> 
> - Prep work to stop having to pass symbol_filter_t to lots of functions,
>   simplifying symtab loading routines (Arnaldo Carvalho de Melo)
> 
> - Honor symbol_conf.allow_aliases when loading kallsyms as well, it was using
>   it only when loading vmlinux files (Arnaldo Carvalho de Melo)
> 
> - Fixup symbol->end before doing alias pruning when loading symbol tables
>   (Arnaldo Carvalho de Melo)
> 
> - Fix error handling of lzma kernel module decompression (Shawn Lin)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (8):
>       perf annotate: Initialize the priv are in symbol__new()
>       perf symbols: Rename ->ignore to ->idle
>       perf probe: Do not use map_load filters for function
>       perf test vmlinux: Clarify which -v lines are errors or warning
>       perf test vmlinux: Avoid printing headers for empty lists
>       perf test vmlinux: Tolerate symbol aliases
>       perf symbols: Check symbol_conf.allow_aliases for kallsyms loading too
>       perf symbols: Fixup symbol sizes before picking best ones
> 
> Masami Hiramatsu (5):
>       perf probe: Remove unused tracing_dir variable
>       perf probe: Show trace event definition
>       perf probe: Ignore vmlinux buildid if offline kernel is given
>       perf probe: Support probing on offline cross-arch binary
>       perf probe: Ignore vmlinux Build-id when offline vmlinux given
> 
> Milian Wolff (2):
>       perf symbols: Demangle symbols for synthesized @plt entries.
>       perf config: Show default report configuration in example and docs
> 
> Ravi Bangoria (3):
>       perf probe: Add helper function to check if probe with variable
>       perf uprobe: Skip prologue if program compiled without optimization
>       perf probe: Move dwarf specific functions to dwarf-aux.c
> 
> Shawn Lin (1):
>       perf tools: Fix error handling of lzma decompression
> 
>  tools/perf/Documentation/perf-config.txt           |   8 +
>  tools/perf/Documentation/perf-probe.txt            |   9 ++
>  tools/perf/Documentation/perfconfig.example        |   9 ++
>  tools/perf/arch/arm/include/dwarf-regs-table.h     |   9 ++
>  tools/perf/arch/arm64/include/dwarf-regs-table.h   |  13 ++
>  tools/perf/arch/powerpc/include/dwarf-regs-table.h |  27 ++++
>  tools/perf/arch/s390/include/dwarf-regs-table.h    |   8 +
>  tools/perf/arch/sh/include/dwarf-regs-table.h      |  25 +++
>  tools/perf/arch/sparc/include/dwarf-regs-table.h   |  18 +++
>  tools/perf/arch/x86/include/dwarf-regs-table.h     |  14 ++
>  tools/perf/arch/xtensa/include/dwarf-regs-table.h  |   8 +
>  tools/perf/builtin-annotate.c                      |   7 +-
>  tools/perf/builtin-probe.c                         |  35 +++-
>  tools/perf/builtin-report.c                        |   6 +-
>  tools/perf/builtin-top.c                           |   8 +-
>  tools/perf/tests/vmlinux-kallsyms.c                |  44 +++--
>  tools/perf/util/Build                              |   1 +
>  tools/perf/util/annotate.c                         |   7 -
>  tools/perf/util/annotate.h                         |   1 -
>  tools/perf/util/dwarf-aux.c                        | 179 +++++++++++++++++++++
>  tools/perf/util/dwarf-aux.h                        |   8 +
>  tools/perf/util/dwarf-regs.c                       |  59 +++++++
>  tools/perf/util/evsel_fprintf.c                    |   4 +-
>  tools/perf/util/include/dwarf-regs.h               |   6 +
>  tools/perf/util/lzma.c                             |  15 +-
>  tools/perf/util/probe-event.c                      | 101 +++++++++---
>  tools/perf/util/probe-event.h                      |   3 +
>  tools/perf/util/probe-file.c                       |   5 +-
>  tools/perf/util/probe-finder.c                     |  60 +++++--
>  tools/perf/util/probe-finder.h                     |   1 +
>  tools/perf/util/symbol-elf.c                       |  86 ++++++----
>  tools/perf/util/symbol.c                           |  30 +++-
>  tools/perf/util/symbol.h                           |   5 +-
>  33 files changed, 698 insertions(+), 121 deletions(-)
>  create mode 100644 tools/perf/arch/arm/include/dwarf-regs-table.h
>  create mode 100644 tools/perf/arch/arm64/include/dwarf-regs-table.h
>  create mode 100644 tools/perf/arch/powerpc/include/dwarf-regs-table.h
>  create mode 100644 tools/perf/arch/s390/include/dwarf-regs-table.h
>  create mode 100644 tools/perf/arch/sh/include/dwarf-regs-table.h
>  create mode 100644 tools/perf/arch/sparc/include/dwarf-regs-table.h
>  create mode 100644 tools/perf/arch/x86/include/dwarf-regs-table.h
>  create mode 100644 tools/perf/arch/xtensa/include/dwarf-regs-table.h
>  create mode 100644 tools/perf/util/dwarf-regs.c
> 
> Build stats:
> 
>   1 alpine:3.4: Ok
>   2 android-ndk:r12b-arm: Ok
>   3 archlinux:latest: Ok
>   4 centos:5: Ok
>   5 centos:6: Ok
>   6 centos:7: Ok
>   7 debian:7: Ok
>   8 debian:8: Ok
>   9 fedora:20: Ok
>  10 fedora:21: Ok
>  11 fedora:22: Ok
>  12 fedora:23: Ok
>  13 fedora:24: Ok
>  14 fedora:24-x-ARC-uClibc: Ok
>  15 fedora:rawhide: Ok
>  16 mageia:5: Ok
>  17 opensuse:13.2: Ok
>  18 opensuse:42.1: Ok
>  19 opensuse:tumbleweed: Ok
>  20 ubuntu:12.04.5: Ok
>  21 ubuntu:14.04.4: Ok
>  22 ubuntu:15.10: Ok
>  23 ubuntu:16.04: Ok
>  24 ubuntu:16.04-x-arm: Ok
>  25 ubuntu:16.04-x-arm64: Ok
>  26 ubuntu:16.04-x-powerpc64: Ok
>  27 ubuntu:16.04-x-powerpc64el: Ok
>  28 ubuntu:16.10: Ok
>  29 ubuntu:16.10-x-s390: Ok

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit 36e674a05164cdbb9d4a5b1b0b279fabae6c13bd:

  Merge tag 'perf-core-for-mingo-20160823' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-08-24 11:08:10 +0200)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160901

for you to fetch changes up to 6243b9dc4c991fe8bdc53a0e029908aef3ddb101:

  perf probe: Move dwarf specific functions to dwarf-aux.c (2016-09-01 12:42:26 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

User visible:

- Support generating cross arch probes, i.e. if you specify a vmlinux
  file for different arch than the one in the host machine,

	 $ perf probe --definition function_name args

  will generate the probe definition string needed to append to the
  target machine /sys/kernel/debug/tracing/kprobes_events file, using
  scripting (Masami Hiramatsu).

- Make 'perf probe' skip the function prologue in uprobes if program
  compiled without optimization, using the same strategy as gdb and
  systemtap uses, fixing a bug where:

	$ perf probe -x ./test 'foo i'

  When 'foo(42)' was used on the "./test" executable would produce i=0
  instead of the expected i=42 (Ravi Bangoria)

- Demangle symbols for synthesized @plt entries too (Millian Wolff)

Documentation:

- Show default report configuration in 'perf config' example
  and docs (Millian Wolff)

Infrastructure:

- Make 'perf test vmlinux' tolerate the symbol aliasing pruning done when
  loading kallsyms and vmlinux (Arnaldo Carvalho de Melo)

- Improve output of 'perf test vmlinux' test, to help identify on the verbose
  output which lines are warning and which are errors (Arnaldo Carvalho de Melo)

- Prep work to stop having to pass symbol_filter_t to lots of functions,
  simplifying symtab loading routines (Arnaldo Carvalho de Melo)

- Honor symbol_conf.allow_aliases when loading kallsyms as well, it was using
  it only when loading vmlinux files (Arnaldo Carvalho de Melo)

- Fixup symbol->end before doing alias pruning when loading symbol tables
  (Arnaldo Carvalho de Melo)

- Fix error handling of lzma kernel module decompression (Shawn Lin)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Arnaldo Carvalho de Melo (8):
      perf annotate: Initialize the priv are in symbol__new()
      perf symbols: Rename ->ignore to ->idle
      perf probe: Do not use map_load filters for function
      perf test vmlinux: Clarify which -v lines are errors or warning
      perf test vmlinux: Avoid printing headers for empty lists
      perf test vmlinux: Tolerate symbol aliases
      perf symbols: Check symbol_conf.allow_aliases for kallsyms loading too
      perf symbols: Fixup symbol sizes before picking best ones

Masami Hiramatsu (5):
      perf probe: Remove unused tracing_dir variable
      perf probe: Show trace event definition
      perf probe: Ignore vmlinux buildid if offline kernel is given
      perf probe: Support probing on offline cross-arch binary
      perf probe: Ignore vmlinux Build-id when offline vmlinux given

Milian Wolff (2):
      perf symbols: Demangle symbols for synthesized @plt entries.
      perf config: Show default report configuration in example and docs

Ravi Bangoria (3):
      perf probe: Add helper function to check if probe with variable
      perf uprobe: Skip prologue if program compiled without optimization
      perf probe: Move dwarf specific functions to dwarf-aux.c

Shawn Lin (1):
      perf tools: Fix error handling of lzma decompression

 tools/perf/Documentation/perf-config.txt           |   8 +
 tools/perf/Documentation/perf-probe.txt            |   9 ++
 tools/perf/Documentation/perfconfig.example        |   9 ++
 tools/perf/arch/arm/include/dwarf-regs-table.h     |   9 ++
 tools/perf/arch/arm64/include/dwarf-regs-table.h   |  13 ++
 tools/perf/arch/powerpc/include/dwarf-regs-table.h |  27 ++++
 tools/perf/arch/s390/include/dwarf-regs-table.h    |   8 +
 tools/perf/arch/sh/include/dwarf-regs-table.h      |  25 +++
 tools/perf/arch/sparc/include/dwarf-regs-table.h   |  18 +++
 tools/perf/arch/x86/include/dwarf-regs-table.h     |  14 ++
 tools/perf/arch/xtensa/include/dwarf-regs-table.h  |   8 +
 tools/perf/builtin-annotate.c                      |   7 +-
 tools/perf/builtin-probe.c                         |  35 +++-
 tools/perf/builtin-report.c                        |   6 +-
 tools/perf/builtin-top.c                           |   8 +-
 tools/perf/tests/vmlinux-kallsyms.c                |  44 +++--
 tools/perf/util/Build                              |   1 +
 tools/perf/util/annotate.c                         |   7 -
 tools/perf/util/annotate.h                         |   1 -
 tools/perf/util/dwarf-aux.c                        | 179 +++++++++++++++++++++
 tools/perf/util/dwarf-aux.h                        |   8 +
 tools/perf/util/dwarf-regs.c                       |  59 +++++++
 tools/perf/util/evsel_fprintf.c                    |   4 +-
 tools/perf/util/include/dwarf-regs.h               |   6 +
 tools/perf/util/lzma.c                             |  15 +-
 tools/perf/util/probe-event.c                      | 101 +++++++++---
 tools/perf/util/probe-event.h                      |   3 +
 tools/perf/util/probe-file.c                       |   5 +-
 tools/perf/util/probe-finder.c                     |  60 +++++--
 tools/perf/util/probe-finder.h                     |   1 +
 tools/perf/util/symbol-elf.c                       |  86 ++++++----
 tools/perf/util/symbol.c                           |  30 +++-
 tools/perf/util/symbol.h                           |   5 +-
 33 files changed, 698 insertions(+), 121 deletions(-)
 create mode 100644 tools/perf/arch/arm/include/dwarf-regs-table.h
 create mode 100644 tools/perf/arch/arm64/include/dwarf-regs-table.h
 create mode 100644 tools/perf/arch/powerpc/include/dwarf-regs-table.h
 create mode 100644 tools/perf/arch/s390/include/dwarf-regs-table.h
 create mode 100644 tools/perf/arch/sh/include/dwarf-regs-table.h
 create mode 100644 tools/perf/arch/sparc/include/dwarf-regs-table.h
 create mode 100644 tools/perf/arch/x86/include/dwarf-regs-table.h
 create mode 100644 tools/perf/arch/xtensa/include/dwarf-regs-table.h
 create mode 100644 tools/perf/util/dwarf-regs.c

Build stats:

  1 alpine:3.4: Ok
  2 android-ndk:r12b-arm: Ok
  3 archlinux:latest: Ok
  4 centos:5: Ok
  5 centos:6: Ok
  6 centos:7: Ok
  7 debian:7: Ok
  8 debian:8: Ok
  9 fedora:20: Ok
 10 fedora:21: Ok
 11 fedora:22: Ok
 12 fedora:23: Ok
 13 fedora:24: Ok
 14 fedora:24-x-ARC-uClibc: Ok
 15 fedora:rawhide: Ok
 16 mageia:5: Ok
 17 opensuse:13.2: Ok
 18 opensuse:42.1: Ok
 19 opensuse:tumbleweed: Ok
 20 ubuntu:12.04.5: Ok
 21 ubuntu:14.04.4: Ok
 22 ubuntu:15.10: Ok
 23 ubuntu:16.04: Ok
 24 ubuntu:16.04-x-arm: Ok
 25 ubuntu:16.04-x-arm64: Ok
 26 ubuntu:16.04-x-powerpc64: Ok
 27 ubuntu:16.04-x-powerpc64el: Ok
 28 ubuntu:16.10: Ok
 29 ubuntu:16.10-x-s390: Ok

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> I've added building objtool to most of the containers in my build test setup:
> 
> [root@jouet ~]# perf stat dm
> alpine:3.4: Ok
> centos:5: Ok
> centos:6: Ok
> centos:7: Ok
> debian:7: Ok
> debian:8: Ok
> debian:experimental: Ok
> fedora:21: Ok
> fedora:22: Ok
> fedora:23: Ok
> fedora:24: Ok
> fedora:rawhide: Ok
> mageia:5: Ok
> opensuse:13.2: Ok
> opensuse:42.1: Ok
> ubuntu:12.04.5: Ok
> ubuntu:14.04.4: Ok
> ubuntu:15.10: Ok
> ubuntu:16.04: Ok
> 
>  Performance counter stats for 'dm':
> 
>        2601.121782      task-clock (msec)         #    0.002 CPUs utilized          
>             86,368      context-switches          #    0.033 M/sec                  
>              5,740      cpu-migrations            #    0.002 M/sec                  
>             53,962      page-faults               #    0.021 M/sec                  
>      7,217,605,183      cycles                    #    2.775 GHz                    
>      6,534,540,119      instructions              #    0.91  insn per cycle         
>      1,408,715,184      branches                  #  541.580 M/sec                  
>         18,523,459      branch-misses             #    1.31% of all branches        
> 
>     1541.746171526 seconds time elapsed
> 
> [root@jouet ~]# 
> 
> - Arnaldo
> 
> The following changes since commit 7b39cafb7aa68ef8e32a9f51fbe737d96084ca74:
> 
>   tools: Work around BITS_PER_LONG related build failure in objtool (2016-07-13 09:37:43 +0200)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160713
> 
> for you to fetch changes up to 8e5dc848356ecf6ea8d27d641c4d7ad8d42fe92b:
> 
>   perf test: Add a test case for SDT event (2016-07-13 23:09:10 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible:
> 
> - Finish merging initial SDT (Statically Defined Traces) support, see
>   cset comments for details about how it all works (Masami Hiramatsu)
> 
> - Support attaching eBPF programs to tracepoints (Wang Nan)
> 
> Infrastructure:
> 
> - Fix up BITS_PER_LONG setting (Arnaldo Carvalho de Melo)
> 
> - Add fallback from ELF_C_READ_MMAP to ELF_C_READ in objtool, fixing
>   the build in libelf implementations lacking that elf_begin() cmd,
>   such as Alpine Linux's (Arnaldo Carvalho de Melo)
> 
> - Avoid checking code drift on busybox's diff in objtool (Arnaldo Carvalho de Melo)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (3):
>       tools: Fix up BITS_PER_LONG setting
>       objtool: Add fallback from ELF_C_READ_MMAP to ELF_C_READ
>       objtool: Avoid checking code drift on busybox's diff
> 
> Masami Hiramatsu (11):
>       perf probe: Fix to show correct error message for $vars and $params
>       perf probe: Accept %sdt and %cached event name
>       perf probe: Make --list show only available cached events
>       perf probe-cache: Add for_each_probe_cache_entry() wrapper
>       perf probe: Allow wildcard for cached events
>       perf probe: Search SDT/cached event from all probe caches
>       perf list: Show SDT and pre-cached events
>       perf probe: Support @BUILDID or @FILE suffix for SDT events
>       perf probe: Support a special SDT probe format
>       perf build: Add sdt feature detection
>       perf test: Add a test case for SDT event
> 
> Wang Nan (5):
>       tools lib bpf: New API to adjust type of a BPF program
>       tools lib bpf: Report error when kernel doesn't support program type
>       perf event parser: Add const qualifier to evt_name and sys_name
>       perf bpf: Rename bpf__foreach_tev() to bpf__foreach_event()
>       perf bpf: Support BPF program attach to tracepoints
> 
>  tools/build/Makefile.feature            |   3 +-
>  tools/build/feature/Makefile            |   6 +-
>  tools/build/feature/test-all.c          |   5 +
>  tools/build/feature/test-sdt.c          |   7 +
>  tools/include/asm-generic/bitsperlong.h |  24 ++-
>  tools/lib/bpf/libbpf.c                  |  80 +++++++--
>  tools/lib/bpf/libbpf.h                  |  10 ++
>  tools/objtool/Makefile                  |   5 +-
>  tools/objtool/elf.c                     |   7 +
>  tools/perf/Documentation/perf-probe.txt |  11 +-
>  tools/perf/Makefile.perf                |   3 +
>  tools/perf/builtin-list.c               |   6 +-
>  tools/perf/builtin-probe.c              |   2 +-
>  tools/perf/config/Makefile              |  10 ++
>  tools/perf/tests/Build                  |   1 +
>  tools/perf/tests/builtin-test.c         |   4 +
>  tools/perf/tests/make                   |   3 +-
>  tools/perf/tests/sdt.c                  | 115 ++++++++++++
>  tools/perf/tests/tests.h                |   1 +
>  tools/perf/util/bpf-loader.c            |  73 +++++++-
>  tools/perf/util/bpf-loader.h            |  12 +-
>  tools/perf/util/build-id.c              |  76 +++++++-
>  tools/perf/util/build-id.h              |   3 +-
>  tools/perf/util/parse-events.c          | 110 ++++++++++--
>  tools/perf/util/parse-events.h          |   4 +-
>  tools/perf/util/probe-event.c           | 309 +++++++++++++++++++++++++++-----
>  tools/perf/util/probe-event.h           |   1 +
>  tools/perf/util/probe-file.c            |  57 ++++--
>  tools/perf/util/probe-file.h            |  14 ++
>  29 files changed, 850 insertions(+), 112 deletions(-)
>  create mode 100644 tools/build/feature/test-sdt.c
>  create mode 100644 tools/perf/tests/sdt.c

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

I've added building objtool to most of the containers in my build test setup:

[root@jouet ~]# perf stat dm
alpine:3.4: Ok
centos:5: Ok
centos:6: Ok
centos:7: Ok
debian:7: Ok
debian:8: Ok
debian:experimental: Ok
fedora:21: Ok
fedora:22: Ok
fedora:23: Ok
fedora:24: Ok
fedora:rawhide: Ok
mageia:5: Ok
opensuse:13.2: Ok
opensuse:42.1: Ok
ubuntu:12.04.5: Ok
ubuntu:14.04.4: Ok
ubuntu:15.10: Ok
ubuntu:16.04: Ok

 Performance counter stats for 'dm':

       2601.121782      task-clock (msec)         #    0.002 CPUs utilized          
            86,368      context-switches          #    0.033 M/sec                  
             5,740      cpu-migrations            #    0.002 M/sec                  
            53,962      page-faults               #    0.021 M/sec                  
     7,217,605,183      cycles                    #    2.775 GHz                    
     6,534,540,119      instructions              #    0.91  insn per cycle         
     1,408,715,184      branches                  #  541.580 M/sec                  
        18,523,459      branch-misses             #    1.31% of all branches        

    1541.746171526 seconds time elapsed

[root@jouet ~]# 

- Arnaldo

The following changes since commit 7b39cafb7aa68ef8e32a9f51fbe737d96084ca74:

  tools: Work around BITS_PER_LONG related build failure in objtool (2016-07-13 09:37:43 +0200)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160713

for you to fetch changes up to 8e5dc848356ecf6ea8d27d641c4d7ad8d42fe92b:

  perf test: Add a test case for SDT event (2016-07-13 23:09:10 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

User visible:

- Finish merging initial SDT (Statically Defined Traces) support, see
  cset comments for details about how it all works (Masami Hiramatsu)

- Support attaching eBPF programs to tracepoints (Wang Nan)

Infrastructure:

- Fix up BITS_PER_LONG setting (Arnaldo Carvalho de Melo)

- Add fallback from ELF_C_READ_MMAP to ELF_C_READ in objtool, fixing
  the build in libelf implementations lacking that elf_begin() cmd,
  such as Alpine Linux's (Arnaldo Carvalho de Melo)

- Avoid checking code drift on busybox's diff in objtool (Arnaldo Carvalho de Melo)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Arnaldo Carvalho de Melo (3):
      tools: Fix up BITS_PER_LONG setting
      objtool: Add fallback from ELF_C_READ_MMAP to ELF_C_READ
      objtool: Avoid checking code drift on busybox's diff

Masami Hiramatsu (11):
      perf probe: Fix to show correct error message for $vars and $params
      perf probe: Accept %sdt and %cached event name
      perf probe: Make --list show only available cached events
      perf probe-cache: Add for_each_probe_cache_entry() wrapper
      perf probe: Allow wildcard for cached events
      perf probe: Search SDT/cached event from all probe caches
      perf list: Show SDT and pre-cached events
      perf probe: Support @BUILDID or @FILE suffix for SDT events
      perf probe: Support a special SDT probe format
      perf build: Add sdt feature detection
      perf test: Add a test case for SDT event

Wang Nan (5):
      tools lib bpf: New API to adjust type of a BPF program
      tools lib bpf: Report error when kernel doesn't support program type
      perf event parser: Add const qualifier to evt_name and sys_name
      perf bpf: Rename bpf__foreach_tev() to bpf__foreach_event()
      perf bpf: Support BPF program attach to tracepoints

 tools/build/Makefile.feature            |   3 +-
 tools/build/feature/Makefile            |   6 +-
 tools/build/feature/test-all.c          |   5 +
 tools/build/feature/test-sdt.c          |   7 +
 tools/include/asm-generic/bitsperlong.h |  24 ++-
 tools/lib/bpf/libbpf.c                  |  80 +++++++--
 tools/lib/bpf/libbpf.h                  |  10 ++
 tools/objtool/Makefile                  |   5 +-
 tools/objtool/elf.c                     |   7 +
 tools/perf/Documentation/perf-probe.txt |  11 +-
 tools/perf/Makefile.perf                |   3 +
 tools/perf/builtin-list.c               |   6 +-
 tools/perf/builtin-probe.c              |   2 +-
 tools/perf/config/Makefile              |  10 ++
 tools/perf/tests/Build                  |   1 +
 tools/perf/tests/builtin-test.c         |   4 +
 tools/perf/tests/make                   |   3 +-
 tools/perf/tests/sdt.c                  | 115 ++++++++++++
 tools/perf/tests/tests.h                |   1 +
 tools/perf/util/bpf-loader.c            |  73 +++++++-
 tools/perf/util/bpf-loader.h            |  12 +-
 tools/perf/util/build-id.c              |  76 +++++++-
 tools/perf/util/build-id.h              |   3 +-
 tools/perf/util/parse-events.c          | 110 ++++++++++--
 tools/perf/util/parse-events.h          |   4 +-
 tools/perf/util/probe-event.c           | 309 +++++++++++++++++++++++++++-----
 tools/perf/util/probe-event.h           |   1 +
 tools/perf/util/probe-file.c            |  57 ++++--
 tools/perf/util/probe-file.h            |  14 ++
 29 files changed, 850 insertions(+), 112 deletions(-)
 create mode 100644 tools/build/feature/test-sdt.c
 create mode 100644 tools/perf/tests/sdt.c

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Em Thu, Jun 16, 2016 at 08:29:47AM +0200, Jiri Olsa escreveu:
> On Wed, Jun 15, 2016 at 03:13:09PM -0300, Arnaldo Carvalho de Melo wrote:
> 
> SNIP
> 
> > ----------------------------------------------------------------
> > He Kuang (1):
> >       perf unwind: Fix compile error for static cross build
> > 
> > Jiri Olsa (10):
> >       perf mem: Add --ldlat option
> >       perf tools: Fix Data Object sort entry width index
> >       perf tui: Separate hierarchy and standard headers output
> >       perf stdio: Separate headers output
> >       perf stdio: Separate hierarchy headers output
> >       perf stdio: Separate standard headers output
> >       perf stdio: Do not pass hists in hist_entry__fprintf
> >       perf stdio: Add use_callchain parameter to hists__fprintf
> >       perf hists: Replace perf_evsel arg perf_hpp_fmt's header callback
> >       perf hists: Replace perf_evsel arg perf_hpp_fmt's width callback
> hi,
> any reason for skipping this one?:
>   perf tools: Rename __hists__add_entry to hists__add_entry

nope, will apply.

- Arnaldo

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> The following changes since commit 2c95afc1e83d93fac3be6923465e1753c2c53b0a:
> 
>   perf/x86/intel, watchdog: Switch NMI watchdog to ref cycles on x86 (2016-06-14 11:16:59 +0200)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160615
> 
> for you to fetch changes up to 2fd457a34525ea3bc609e377b46af759af8a7934:
> 
>   perf probe: Add --cache option to cache the probe definitions (2016-06-15 14:34:42 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible:
> 
> - Add --ldlat option to 'perf mem' to specify load latency for loads
>   event (e.g. cpu/mem-loads/ ) (Jiri Olsa)
> 
> Build fixes:
> 
> - Fix libunwind related compile error for static cross build (He Kuang)
> 
> Infrastructure:
> 
> - UI refactorings to support headers with multiple lines, non-evsel
>   hists browsers, toggle showing callchains, etc (Jiri Olsa)
> 
> - More prep work for caching probe definitions, paving the way
>   for supporting SDT (Statically Defined Traces) userspace probes (Masami Hiramatsu)
> 
> - Handle NULL at perf_config_set__delete() (Taeung Song)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> He Kuang (1):
>       perf unwind: Fix compile error for static cross build
> 
> Jiri Olsa (10):
>       perf mem: Add --ldlat option
>       perf tools: Fix Data Object sort entry width index
>       perf tui: Separate hierarchy and standard headers output
>       perf stdio: Separate headers output
>       perf stdio: Separate hierarchy headers output
>       perf stdio: Separate standard headers output
>       perf stdio: Do not pass hists in hist_entry__fprintf
>       perf stdio: Add use_callchain parameter to hists__fprintf
>       perf hists: Replace perf_evsel arg perf_hpp_fmt's header callback
>       perf hists: Replace perf_evsel arg perf_hpp_fmt's width callback
> 
> Masami Hiramatsu (7):
>       perf tools: Fix rm_rf() to handle non-regular files correctly
>       perf probe: Fix to add NULL check for strndup
>       perf buildid: Rename and export build_id_cache__cachedir()
>       perf probe: Add perf_probe_event__copy()
>       perf probe: Uncomment and export synthesize_perf_probe_point()
>       perf probe: Introduce perf_cache interfaces
>       perf probe: Add --cache option to cache the probe definitions
> 
> Taeung Song (1):
>       perf config: Handle NULL at perf_config_set__delete()
> 
>  tools/perf/Documentation/perf-mem.txt   |   3 +
>  tools/perf/Documentation/perf-probe.txt |   4 +
>  tools/perf/builtin-diff.c               |   7 +-
>  tools/perf/builtin-mem.c                |   1 +
>  tools/perf/builtin-probe.c              |   1 +
>  tools/perf/builtin-report.c             |   3 +-
>  tools/perf/builtin-top.c                |   2 +-
>  tools/perf/config/Makefile              |   3 +
>  tools/perf/ui/browsers/hists.c          |  39 ++--
>  tools/perf/ui/gtk/hists.c               |   2 +-
>  tools/perf/ui/hist.c                    |  11 +-
>  tools/perf/ui/stdio/hist.c              | 133 +++++++------
>  tools/perf/util/build-id.c              |  12 +-
>  tools/perf/util/build-id.h              |   2 +
>  tools/perf/util/config.c                |   3 +
>  tools/perf/util/hist.c                  |   2 +-
>  tools/perf/util/hist.h                  |   7 +-
>  tools/perf/util/mem-events.c            |  17 +-
>  tools/perf/util/mem-events.h            |   1 +
>  tools/perf/util/probe-event.c           | 128 ++++++++++--
>  tools/perf/util/probe-event.h           |   5 +
>  tools/perf/util/probe-file.c            | 331 ++++++++++++++++++++++++++++++++
>  tools/perf/util/probe-file.h            |  20 ++
>  tools/perf/util/sort.c                  |  14 +-
>  tools/perf/util/util.c                  |  13 +-
>  25 files changed, 640 insertions(+), 124 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Jiri Olsa]

On Wed, Jun 15, 2016 at 03:13:09PM -0300, Arnaldo Carvalho de Melo wrote:

SNIP

> ----------------------------------------------------------------
> He Kuang (1):
>       perf unwind: Fix compile error for static cross build
> 
> Jiri Olsa (10):
>       perf mem: Add --ldlat option
>       perf tools: Fix Data Object sort entry width index
>       perf tui: Separate hierarchy and standard headers output
>       perf stdio: Separate headers output
>       perf stdio: Separate hierarchy headers output
>       perf stdio: Separate standard headers output
>       perf stdio: Do not pass hists in hist_entry__fprintf
>       perf stdio: Add use_callchain parameter to hists__fprintf
>       perf hists: Replace perf_evsel arg perf_hpp_fmt's header callback
>       perf hists: Replace perf_evsel arg perf_hpp_fmt's width callback
hi,
any reason for skipping this one?:
  perf tools: Rename __hists__add_entry to hists__add_entry

thanks,
jirka

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit 2c95afc1e83d93fac3be6923465e1753c2c53b0a:

  perf/x86/intel, watchdog: Switch NMI watchdog to ref cycles on x86 (2016-06-14 11:16:59 +0200)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160615

for you to fetch changes up to 2fd457a34525ea3bc609e377b46af759af8a7934:

  perf probe: Add --cache option to cache the probe definitions (2016-06-15 14:34:42 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

User visible:

- Add --ldlat option to 'perf mem' to specify load latency for loads
  event (e.g. cpu/mem-loads/ ) (Jiri Olsa)

Build fixes:

- Fix libunwind related compile error for static cross build (He Kuang)

Infrastructure:

- UI refactorings to support headers with multiple lines, non-evsel
  hists browsers, toggle showing callchains, etc (Jiri Olsa)

- More prep work for caching probe definitions, paving the way
  for supporting SDT (Statically Defined Traces) userspace probes (Masami Hiramatsu)

- Handle NULL at perf_config_set__delete() (Taeung Song)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
He Kuang (1):
      perf unwind: Fix compile error for static cross build

Jiri Olsa (10):
      perf mem: Add --ldlat option
      perf tools: Fix Data Object sort entry width index
      perf tui: Separate hierarchy and standard headers output
      perf stdio: Separate headers output
      perf stdio: Separate hierarchy headers output
      perf stdio: Separate standard headers output
      perf stdio: Do not pass hists in hist_entry__fprintf
      perf stdio: Add use_callchain parameter to hists__fprintf
      perf hists: Replace perf_evsel arg perf_hpp_fmt's header callback
      perf hists: Replace perf_evsel arg perf_hpp_fmt's width callback

Masami Hiramatsu (7):
      perf tools: Fix rm_rf() to handle non-regular files correctly
      perf probe: Fix to add NULL check for strndup
      perf buildid: Rename and export build_id_cache__cachedir()
      perf probe: Add perf_probe_event__copy()
      perf probe: Uncomment and export synthesize_perf_probe_point()
      perf probe: Introduce perf_cache interfaces
      perf probe: Add --cache option to cache the probe definitions

Taeung Song (1):
      perf config: Handle NULL at perf_config_set__delete()

 tools/perf/Documentation/perf-mem.txt   |   3 +
 tools/perf/Documentation/perf-probe.txt |   4 +
 tools/perf/builtin-diff.c               |   7 +-
 tools/perf/builtin-mem.c                |   1 +
 tools/perf/builtin-probe.c              |   1 +
 tools/perf/builtin-report.c             |   3 +-
 tools/perf/builtin-top.c                |   2 +-
 tools/perf/config/Makefile              |   3 +
 tools/perf/ui/browsers/hists.c          |  39 ++--
 tools/perf/ui/gtk/hists.c               |   2 +-
 tools/perf/ui/hist.c                    |  11 +-
 tools/perf/ui/stdio/hist.c              | 133 +++++++------
 tools/perf/util/build-id.c              |  12 +-
 tools/perf/util/build-id.h              |   2 +
 tools/perf/util/config.c                |   3 +
 tools/perf/util/hist.c                  |   2 +-
 tools/perf/util/hist.h                  |   7 +-
 tools/perf/util/mem-events.c            |  17 +-
 tools/perf/util/mem-events.h            |   1 +
 tools/perf/util/probe-event.c           | 128 ++++++++++--
 tools/perf/util/probe-event.h           |   5 +
 tools/perf/util/probe-file.c            | 331 ++++++++++++++++++++++++++++++++
 tools/perf/util/probe-file.h            |  20 ++
 tools/perf/util/sort.c                  |  14 +-
 tools/perf/util/util.c                  |  13 +-
 25 files changed, 640 insertions(+), 124 deletions(-)

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Em Thu, Apr 07, 2016 at 05:58:21PM -0300, Arnaldo Carvalho de Melo escreveu:
> > Hi Ingo,
> > 
> > 	Please consider pulling, build tested on:
> 
> Ingo, if you haven't pulled this one, please pull instead
> perf-core-for-mingo-20160408, which has the same tag text and contents +
> a Tested-by tag from Milian for the unwind thread one and a bisection
> fix one liner for the syscall_tbl generation from Wang,

Pulled, thanks a lot Arnaldo!

	Ingo

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Em Thu, Apr 07, 2016 at 05:58:21PM -0300, Arnaldo Carvalho de Melo escreveu:
> Hi Ingo,
> 
> 	Please consider pulling, build tested on:

Ingo, if you haven't pulled this one, please pull instead
perf-core-for-mingo-20160408, which has the same tag text and contents +
a Tested-by tag from Milian for the unwind thread one and a bisection
fix one liner for the syscall_tbl generation from Wang,

Thanks,

- Arnaldo
 
>   # perf stat -e cycles dm
>   alldeps-ubuntu-12.04: Ok
>   minimal-debian-experimental-x-mips64: Ok
>   minimal-debian-experimental-x-mips64el: Ok
>   minimal-debian-experimental-x-mipsel: Ok
>   minimal-ubuntu-x-arm: Ok
>   minimal-ubuntu-x-arm64: Ok
>   minimal-ubuntu-x-ppc64: Ok
>   minimal-ubuntu-x-ppc64el: Ok
>   alldeps-debian: Ok
>   alldeps-mageia: Ok
>   alldeps-rhel7: Ok
>   alldeps-centos: Ok
>   alldeps-opensuse: Ok
>   alldeps-ubuntu: Ok
> 
>    Performance counter stats for 'dm':
> 
>      3,095,685,547      cycles                                                      
> 
>      454.805537820 seconds time elapsed
> 
>   #
> 
> 	'perf test' passes on fedora23 x86_64,
> 
> Thanks,
> 
> - Arnaldo
> 
> The following changes since commit dad38ca64a252144b4ccdfe9730a3fe2b7c61957:
> 
>   Merge tag 'perf-core-for-mingo-20160401' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-04-06 08:46:23 +0200)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160407
> 
> for you to fetch changes up to 98c3d844cd0bc56d33800114e6b6adcd0a5ec381:
> 
>   perf symbols: Adjust symbol for shared objects (2016-04-07 17:17:01 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible:
> 
> - Beautify more syscall arguments in 'perf trace', using the type column in
>   tracepoint /format fields to attach, for instance, a pid_t resolver to the
>   thread COMM, also attach a mode_t beautifier in the same fashion
>   (Arnaldo Carvalho de Melo)
> 
> - Build the syscall table id <-> name resolver using the same .tbl file
>   used in the kernel to generate headers, to avoid the delay in getting
>   new syscalls supported in the audit-libs external dependency, done so
>   far only for x86_64 (Arnaldo Carvalho de Melo)
> 
> - Improve the documentation of event specifications (Andi Kleen)
> 
> - Process update events in 'perf script', fixing up this use case:
> 
>     # perf stat -a -I 1000 -e cycles record | perf script -s script.py
> 
> - Shared object symbol adjustment fixes, fixing symbol resolution in
>   Android (Wang Nan)
> 
> Infrastructure:
> 
> - Add dedicated unwind addr_space member into thread struct, to allow
>   tools to use thread->priv, noticed while working on having callchains
>   in 'perf trace' (Jiri Olsa)
> 
> Build fixes:
> 
> - Fix the build in Ubuntu 12.04 (Arnaldo Carvalho de Melo, Vinson Lee)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Andi Kleen (1):
>       perf list: Document event specifications better
> 
> Arnaldo Carvalho de Melo (11):
>       perf probe: Check if dwarf_getlocations() is available
>       perf script perl: Do error checking on new backtrace routine
>       perf trace: Beautify sched_setscheduler 'policy' argument
>       perf trace: Beautify wait4/waitid 'options' argument
>       perf trace: Infrastructure to show COMM strings for syscalls returning PIDs
>       perf trace: Beautify set_tid_address, getpid, getppid return values
>       perf trace: Beautify pid_t arguments
>       perf trace: Beautify mode_t arguments
>       perf trace: Move syscall table id <-> name routines to separate class
>       perf tools: Allow generating per-arch syscall table arrays
>       perf tools: Build syscall table .c header from kernel's syscall_64.tbl
> 
> Jiri Olsa (4):
>       perf tools: Remove superfluous ARCH Makefile includes
>       perf tools: Introduce trim function
>       perf tools: Add dedicated unwind addr_space member into thread struct
>       perf script: Process event update events
> 
> Vinson Lee (1):
>       perf config: Fix build with older toolchain.
> 
> Wang Nan (2):
>       perf symbols: Record text offset in dso to calculate objdump address
>       perf symbols: Adjust symbol for shared objects
> 
>  tools/build/Makefile.feature                       |   2 +
>  tools/build/feature/Makefile                       |   4 +
>  tools/build/feature/test-all.c                     |   5 +
>  tools/build/feature/test-dwarf_getlocations.c      |  12 +
>  tools/perf/Documentation/perf-list.txt             | 107 +++++-
>  tools/perf/Makefile.perf                           |  13 +-
>  tools/perf/arch/x86/Makefile                       |  23 ++
>  tools/perf/arch/x86/entry/syscalls/syscall_64.tbl  | 374 +++++++++++++++++++++
>  tools/perf/arch/x86/entry/syscalls/syscalltbl.sh   |  39 +++
>  tools/perf/builtin-script.c                        |   1 +
>  tools/perf/builtin-trace.c                         | 156 +++++----
>  tools/perf/config/Makefile                         |  11 +-
>  tools/perf/trace/beauty/mode_t.c                   |  68 ++++
>  tools/perf/trace/beauty/pid.c                      |  18 +
>  tools/perf/trace/beauty/sched_policy.c             |  44 +++
>  tools/perf/trace/beauty/waitid_options.c           |  26 ++
>  tools/perf/ui/browsers/hists.c                     |   3 +-
>  tools/perf/ui/stdio/hist.c                         |   3 +-
>  tools/perf/util/Build                              |   5 +
>  tools/perf/util/config.c                           |   6 +-
>  tools/perf/util/dwarf-aux.c                        |   9 +
>  tools/perf/util/map.c                              |  14 +
>  .../perf/util/scripting-engines/trace-event-perl.c |  30 +-
>  tools/perf/util/symbol-elf.c                       |  13 +-
>  tools/perf/util/syscalltbl.c                       | 134 ++++++++
>  tools/perf/util/syscalltbl.h                       |  20 ++
>  tools/perf/util/thread.h                           |   6 +
>  tools/perf/util/unwind-libunwind.c                 |  25 +-
>  tools/perf/util/util.h                             |   5 +
>  29 files changed, 1060 insertions(+), 116 deletions(-)
>  create mode 100644 tools/build/feature/test-dwarf_getlocations.c
>  create mode 100644 tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
>  create mode 100755 tools/perf/arch/x86/entry/syscalls/syscalltbl.sh
>  create mode 100644 tools/perf/trace/beauty/mode_t.c
>  create mode 100644 tools/perf/trace/beauty/pid.c
>  create mode 100644 tools/perf/trace/beauty/sched_policy.c
>  create mode 100644 tools/perf/trace/beauty/waitid_options.c
>  create mode 100644 tools/perf/util/syscalltbl.c
>  create mode 100644 tools/perf/util/syscalltbl.h

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling, build tested on:

  # perf stat -e cycles dm
  alldeps-ubuntu-12.04: Ok
  minimal-debian-experimental-x-mips64: Ok
  minimal-debian-experimental-x-mips64el: Ok
  minimal-debian-experimental-x-mipsel: Ok
  minimal-ubuntu-x-arm: Ok
  minimal-ubuntu-x-arm64: Ok
  minimal-ubuntu-x-ppc64: Ok
  minimal-ubuntu-x-ppc64el: Ok
  alldeps-debian: Ok
  alldeps-mageia: Ok
  alldeps-rhel7: Ok
  alldeps-centos: Ok
  alldeps-opensuse: Ok
  alldeps-ubuntu: Ok

   Performance counter stats for 'dm':

     3,095,685,547      cycles                                                      

     454.805537820 seconds time elapsed

  #

	'perf test' passes on fedora23 x86_64,

Thanks,

- Arnaldo

The following changes since commit dad38ca64a252144b4ccdfe9730a3fe2b7c61957:

  Merge tag 'perf-core-for-mingo-20160401' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-04-06 08:46:23 +0200)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160407

for you to fetch changes up to 98c3d844cd0bc56d33800114e6b6adcd0a5ec381:

  perf symbols: Adjust symbol for shared objects (2016-04-07 17:17:01 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

User visible:

- Beautify more syscall arguments in 'perf trace', using the type column in
  tracepoint /format fields to attach, for instance, a pid_t resolver to the
  thread COMM, also attach a mode_t beautifier in the same fashion
  (Arnaldo Carvalho de Melo)

- Build the syscall table id <-> name resolver using the same .tbl file
  used in the kernel to generate headers, to avoid the delay in getting
  new syscalls supported in the audit-libs external dependency, done so
  far only for x86_64 (Arnaldo Carvalho de Melo)

- Improve the documentation of event specifications (Andi Kleen)

- Process update events in 'perf script', fixing up this use case:

    # perf stat -a -I 1000 -e cycles record | perf script -s script.py

- Shared object symbol adjustment fixes, fixing symbol resolution in
  Android (Wang Nan)

Infrastructure:

- Add dedicated unwind addr_space member into thread struct, to allow
  tools to use thread->priv, noticed while working on having callchains
  in 'perf trace' (Jiri Olsa)

Build fixes:

- Fix the build in Ubuntu 12.04 (Arnaldo Carvalho de Melo, Vinson Lee)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Andi Kleen (1):
      perf list: Document event specifications better

Arnaldo Carvalho de Melo (11):
      perf probe: Check if dwarf_getlocations() is available
      perf script perl: Do error checking on new backtrace routine
      perf trace: Beautify sched_setscheduler 'policy' argument
      perf trace: Beautify wait4/waitid 'options' argument
      perf trace: Infrastructure to show COMM strings for syscalls returning PIDs
      perf trace: Beautify set_tid_address, getpid, getppid return values
      perf trace: Beautify pid_t arguments
      perf trace: Beautify mode_t arguments
      perf trace: Move syscall table id <-> name routines to separate class
      perf tools: Allow generating per-arch syscall table arrays
      perf tools: Build syscall table .c header from kernel's syscall_64.tbl

Jiri Olsa (4):
      perf tools: Remove superfluous ARCH Makefile includes
      perf tools: Introduce trim function
      perf tools: Add dedicated unwind addr_space member into thread struct
      perf script: Process event update events

Vinson Lee (1):
      perf config: Fix build with older toolchain.

Wang Nan (2):
      perf symbols: Record text offset in dso to calculate objdump address
      perf symbols: Adjust symbol for shared objects

 tools/build/Makefile.feature                       |   2 +
 tools/build/feature/Makefile                       |   4 +
 tools/build/feature/test-all.c                     |   5 +
 tools/build/feature/test-dwarf_getlocations.c      |  12 +
 tools/perf/Documentation/perf-list.txt             | 107 +++++-
 tools/perf/Makefile.perf                           |  13 +-
 tools/perf/arch/x86/Makefile                       |  23 ++
 tools/perf/arch/x86/entry/syscalls/syscall_64.tbl  | 374 +++++++++++++++++++++
 tools/perf/arch/x86/entry/syscalls/syscalltbl.sh   |  39 +++
 tools/perf/builtin-script.c                        |   1 +
 tools/perf/builtin-trace.c                         | 156 +++++----
 tools/perf/config/Makefile                         |  11 +-
 tools/perf/trace/beauty/mode_t.c                   |  68 ++++
 tools/perf/trace/beauty/pid.c                      |  18 +
 tools/perf/trace/beauty/sched_policy.c             |  44 +++
 tools/perf/trace/beauty/waitid_options.c           |  26 ++
 tools/perf/ui/browsers/hists.c                     |   3 +-
 tools/perf/ui/stdio/hist.c                         |   3 +-
 tools/perf/util/Build                              |   5 +
 tools/perf/util/config.c                           |   6 +-
 tools/perf/util/dwarf-aux.c                        |   9 +
 tools/perf/util/map.c                              |  14 +
 .../perf/util/scripting-engines/trace-event-perl.c |  30 +-
 tools/perf/util/symbol-elf.c                       |  13 +-
 tools/perf/util/syscalltbl.c                       | 134 ++++++++
 tools/perf/util/syscalltbl.h                       |  20 ++
 tools/perf/util/thread.h                           |   6 +
 tools/perf/util/unwind-libunwind.c                 |  25 +-
 tools/perf/util/util.h                             |   5 +
 29 files changed, 1060 insertions(+), 116 deletions(-)
 create mode 100644 tools/build/feature/test-dwarf_getlocations.c
 create mode 100644 tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
 create mode 100755 tools/perf/arch/x86/entry/syscalls/syscalltbl.sh
 create mode 100644 tools/perf/trace/beauty/mode_t.c
 create mode 100644 tools/perf/trace/beauty/pid.c
 create mode 100644 tools/perf/trace/beauty/sched_policy.c
 create mode 100644 tools/perf/trace/beauty/waitid_options.c
 create mode 100644 tools/perf/util/syscalltbl.c
 create mode 100644 tools/perf/util/syscalltbl.h

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> The following changes since commit 3a99e6db539e53cc9c79282e80f8362b0cb96ac8:
> 
>   perf bench mem: Prepare the x86-64 build for upstream memcpy_mcsafe() changes (2016-03-09 10:40:01 +0100)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160310
> 
> for you to fetch changes up to 206cab651d07563d766c7f4cb73f858c5df3dec5:
> 
>   perf stat: Add --metric-only support for -A (2016-03-10 16:50:47 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible:
> 
> - Implement 'perf stat --metric-only' (Andi Kleen)
> 
> - Fix perf script python database export crash (Chris Phlipot)
> 
> Infrastructure:
> 
> - perf top/report --hierarchy assorted fixes for problems introduced in this
>   perf/core cycle (Namhyung Kim)
> 
> - Support '~' operation in libtraceevent (Steven Rosted)
> 
> Build fixes:
> 
> - Fix bulding of jitdump on opensuse on ubuntu systems when the DWARF
>   devel files are not installed (Arnaldo Carvalho de Melo)
> 
> - Do not try building jitdump on unsupported arches (Jiri Olsa)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Andi Kleen (3):
>       perf stat: Document CSV format in manpage
>       perf stat: Implement --metric-only mode
>       perf stat: Add --metric-only support for -A
> 
> Arnaldo Carvalho de Melo (1):
>       perf jitdump: DWARF is also needed
> 
> Chris Phlipot (1):
>       perf tools: Fix perf script python database export crash
> 
> Jiri Olsa (3):
>       perf tools: Pass perf_hpp_list all the way through setup_sort_list
>       perf tools: Omit unnecessary cast in perf_pmu__parse_scale
>       perf jitdump: Build only on supported archs
> 
> Namhyung Kim (10):
>       perf tools: Fix hist_entry__filter() for hierarchy
>       perf tools: Add more sort entry check functions
>       perf tools: Fix command line filters in hierarchy mode
>       perf tools: Remove hist_entry->fmt field
>       perf hists browser: Cleanup hist_browser__fprintf_hierarchy_entry()
>       perf tools: Remove nr_sort_keys field
>       perf tools: Recalc total periods using top-level entries in hierarchy
>       perf tools: Add sort__has_comm variable
>       perf hists browser: Allow thread filtering for comm sort key
>       perf hists browser: Check sort keys before hot key actions
> 
> Steven Rostedt (1):
>       tools lib traceevent: Add '~' operation within arg_num_eval()
> 
>  tools/lib/traceevent/event-parse.c     |   6 +
>  tools/perf/Documentation/perf-stat.txt |  27 ++++
>  tools/perf/arch/arm/Makefile           |   1 +
>  tools/perf/arch/arm64/Makefile         |   1 +
>  tools/perf/arch/powerpc/Makefile       |   1 +
>  tools/perf/arch/x86/Makefile           |   1 +
>  tools/perf/builtin-inject.c            |  12 +-
>  tools/perf/builtin-stat.c              | 244 +++++++++++++++++++++++++++++++--
>  tools/perf/config/Makefile             |   7 +
>  tools/perf/ui/browsers/hists.c         |  73 ++++++----
>  tools/perf/ui/hist.c                   |   3 -
>  tools/perf/util/Build                  |   3 +
>  tools/perf/util/evsel.h                |   6 +-
>  tools/perf/util/hist.c                 | 144 +++++++++++++++++--
>  tools/perf/util/hist.h                 |   6 +-
>  tools/perf/util/pmu.c                  |   4 +-
>  tools/perf/util/sort.c                 | 147 +++++++++-----------
>  tools/perf/util/sort.h                 |   2 +-
>  18 files changed, 542 insertions(+), 146 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit 3a99e6db539e53cc9c79282e80f8362b0cb96ac8:

  perf bench mem: Prepare the x86-64 build for upstream memcpy_mcsafe() changes (2016-03-09 10:40:01 +0100)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160310

for you to fetch changes up to 206cab651d07563d766c7f4cb73f858c5df3dec5:

  perf stat: Add --metric-only support for -A (2016-03-10 16:50:47 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

User visible:

- Implement 'perf stat --metric-only' (Andi Kleen)

- Fix perf script python database export crash (Chris Phlipot)

Infrastructure:

- perf top/report --hierarchy assorted fixes for problems introduced in this
  perf/core cycle (Namhyung Kim)

- Support '~' operation in libtraceevent (Steven Rosted)

Build fixes:

- Fix bulding of jitdump on opensuse on ubuntu systems when the DWARF
  devel files are not installed (Arnaldo Carvalho de Melo)

- Do not try building jitdump on unsupported arches (Jiri Olsa)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Andi Kleen (3):
      perf stat: Document CSV format in manpage
      perf stat: Implement --metric-only mode
      perf stat: Add --metric-only support for -A

Arnaldo Carvalho de Melo (1):
      perf jitdump: DWARF is also needed

Chris Phlipot (1):
      perf tools: Fix perf script python database export crash

Jiri Olsa (3):
      perf tools: Pass perf_hpp_list all the way through setup_sort_list
      perf tools: Omit unnecessary cast in perf_pmu__parse_scale
      perf jitdump: Build only on supported archs

Namhyung Kim (10):
      perf tools: Fix hist_entry__filter() for hierarchy
      perf tools: Add more sort entry check functions
      perf tools: Fix command line filters in hierarchy mode
      perf tools: Remove hist_entry->fmt field
      perf hists browser: Cleanup hist_browser__fprintf_hierarchy_entry()
      perf tools: Remove nr_sort_keys field
      perf tools: Recalc total periods using top-level entries in hierarchy
      perf tools: Add sort__has_comm variable
      perf hists browser: Allow thread filtering for comm sort key
      perf hists browser: Check sort keys before hot key actions

Steven Rostedt (1):
      tools lib traceevent: Add '~' operation within arg_num_eval()

 tools/lib/traceevent/event-parse.c     |   6 +
 tools/perf/Documentation/perf-stat.txt |  27 ++++
 tools/perf/arch/arm/Makefile           |   1 +
 tools/perf/arch/arm64/Makefile         |   1 +
 tools/perf/arch/powerpc/Makefile       |   1 +
 tools/perf/arch/x86/Makefile           |   1 +
 tools/perf/builtin-inject.c            |  12 +-
 tools/perf/builtin-stat.c              | 244 +++++++++++++++++++++++++++++++--
 tools/perf/config/Makefile             |   7 +
 tools/perf/ui/browsers/hists.c         |  73 ++++++----
 tools/perf/ui/hist.c                   |   3 -
 tools/perf/util/Build                  |   3 +
 tools/perf/util/evsel.h                |   6 +-
 tools/perf/util/hist.c                 | 144 +++++++++++++++++--
 tools/perf/util/hist.h                 |   6 +-
 tools/perf/util/pmu.c                  |   4 +-
 tools/perf/util/sort.c                 | 147 +++++++++-----------
 tools/perf/util/sort.h                 |   2 +-
 18 files changed, 542 insertions(+), 146 deletions(-)

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> The following changes since commit d3aaf09f889b31f3b424bf9603b163ec1204c361:
> 
>   Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-02-04 08:58:01 +0100)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo
> 
> for you to fetch changes up to 598b7c6919c7bbcc1243009721a01bc12275ff3e:
> 
>   perf jit: add source line info support (2016-02-05 12:33:09 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible fixes:
> 
> - Handle spaces in file names obtained from /proc/pid/maps (Marcin Ślusarz)
> 
> New features:
> 
> - Improved support for java, using the JVMTI agent library to do jitdumps
>   that then will be inserted in synthesized PERF_RECORD_MMAP2 events via
>   'perf inject' pointed to synthesized ELF files stored in ~/.debug and
>   keyed with build-ids, to allow symbol resolution and even annotation with
>   source line info, see the changeset comments to see how to use it (Stephane Eranian)
> 
> Documentation:
> 
> - Document mmore variables in the 'perf config' man page (Taeung Song)
> 
> Infrastructure:
> 
> - Improve a bit the 'make -C tools/perf build-test' output (Arnaldo Carvalho de Melo)
> 
> - Do 'build-test' in parallell, using 'make -j' (Arnaldo Carvalho de Melo)
> 
> - Fix handling of 'clean' in multi-target make invokations for parallell builds (Jiri Olsa)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (4):
>       perf build tests: Elide "-f Makefile" from make invokation
>       perf build tests: Move the feature related vars to the front of the make cmdline
>       perf build tests: Do parallell builds with 'build-test'
>       perf inject: Make sure mmap records are ordered when injecting build_ids
> 
> Jiri Olsa (1):
>       perf tools: Fix parallel build including 'clean' target
> 
> Marcin Ślusarz (1):
>       perf tools: handle spaces in file names obtained from /proc/pid/maps
> 
> Stephane Eranian (5):
>       perf symbols: add Java demangling support
>       perf build: Add libcrypto feature detection
>       perf inject: Add jitdump mmap injection support
>       perf tools: add JVMTI agent library
>       perf jit: add source line info support
> 
> Taeung Song (8):
>       perf config: Document 'ui.show-headers' variable in man page
>       perf config: Document variables for 'call-graph' section in man page
>       perf config: Document variables for 'report' section in man page
>       perf config: Document 'top.children' variable in man page
>       perf config: Document 'man.viewer' variable in man page
>       perf config: Document 'pager.<subcommand>' variables in man page
>       perf config: Document 'kmem.default' variable in man page
>       perf config: Document 'record.build-id' variable in man page
> 
>  tools/build/Makefile.feature             |   2 +
>  tools/build/feature/Makefile             |   4 +
>  tools/build/feature/test-all.c           |   5 +
>  tools/build/feature/test-libcrypto.c     |  17 +
>  tools/perf/Documentation/perf-config.txt | 143 +++++++
>  tools/perf/Documentation/perf-inject.txt |   7 +
>  tools/perf/Makefile                      |  16 +-
>  tools/perf/Makefile.perf                 |   3 +
>  tools/perf/builtin-inject.c              | 107 ++++-
>  tools/perf/config/Makefile               |  11 +
>  tools/perf/jvmti/Makefile                |  76 ++++
>  tools/perf/jvmti/jvmti_agent.c           | 465 +++++++++++++++++++++
>  tools/perf/jvmti/jvmti_agent.h           |  36 ++
>  tools/perf/jvmti/libjvmti.c              | 304 ++++++++++++++
>  tools/perf/tests/make                    |  11 +-
>  tools/perf/util/Build                    |   6 +
>  tools/perf/util/demangle-java.c          | 199 +++++++++
>  tools/perf/util/demangle-java.h          |  10 +
>  tools/perf/util/event.c                  |   2 +-
>  tools/perf/util/genelf.c                 | 449 +++++++++++++++++++++
>  tools/perf/util/genelf.h                 |  67 +++
>  tools/perf/util/genelf_debug.c           | 610 ++++++++++++++++++++++++++++
>  tools/perf/util/jit.h                    |  15 +
>  tools/perf/util/jitdump.c                | 672 +++++++++++++++++++++++++++++++
>  tools/perf/util/jitdump.h                | 124 ++++++
>  tools/perf/util/symbol-elf.c             |   3 +
>  26 files changed, 3357 insertions(+), 7 deletions(-)
>  create mode 100644 tools/build/feature/test-libcrypto.c
>  create mode 100644 tools/perf/jvmti/Makefile
>  create mode 100644 tools/perf/jvmti/jvmti_agent.c
>  create mode 100644 tools/perf/jvmti/jvmti_agent.h
>  create mode 100644 tools/perf/jvmti/libjvmti.c
>  create mode 100644 tools/perf/util/demangle-java.c
>  create mode 100644 tools/perf/util/demangle-java.h
>  create mode 100644 tools/perf/util/genelf.c
>  create mode 100644 tools/perf/util/genelf.h
>  create mode 100644 tools/perf/util/genelf_debug.c
>  create mode 100644 tools/perf/util/jit.h
>  create mode 100644 tools/perf/util/jitdump.c
>  create mode 100644 tools/perf/util/jitdump.h

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit d3aaf09f889b31f3b424bf9603b163ec1204c361:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-02-04 08:58:01 +0100)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo

for you to fetch changes up to 598b7c6919c7bbcc1243009721a01bc12275ff3e:

  perf jit: add source line info support (2016-02-05 12:33:09 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

User visible fixes:

- Handle spaces in file names obtained from /proc/pid/maps (Marcin Ślusarz)

New features:

- Improved support for java, using the JVMTI agent library to do jitdumps
  that then will be inserted in synthesized PERF_RECORD_MMAP2 events via
  'perf inject' pointed to synthesized ELF files stored in ~/.debug and
  keyed with build-ids, to allow symbol resolution and even annotation with
  source line info, see the changeset comments to see how to use it (Stephane Eranian)

Documentation:

- Document mmore variables in the 'perf config' man page (Taeung Song)

Infrastructure:

- Improve a bit the 'make -C tools/perf build-test' output (Arnaldo Carvalho de Melo)

- Do 'build-test' in parallell, using 'make -j' (Arnaldo Carvalho de Melo)

- Fix handling of 'clean' in multi-target make invokations for parallell builds (Jiri Olsa)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Arnaldo Carvalho de Melo (4):
      perf build tests: Elide "-f Makefile" from make invokation
      perf build tests: Move the feature related vars to the front of the make cmdline
      perf build tests: Do parallell builds with 'build-test'
      perf inject: Make sure mmap records are ordered when injecting build_ids

Jiri Olsa (1):
      perf tools: Fix parallel build including 'clean' target

Marcin Ślusarz (1):
      perf tools: handle spaces in file names obtained from /proc/pid/maps

Stephane Eranian (5):
      perf symbols: add Java demangling support
      perf build: Add libcrypto feature detection
      perf inject: Add jitdump mmap injection support
      perf tools: add JVMTI agent library
      perf jit: add source line info support

Taeung Song (8):
      perf config: Document 'ui.show-headers' variable in man page
      perf config: Document variables for 'call-graph' section in man page
      perf config: Document variables for 'report' section in man page
      perf config: Document 'top.children' variable in man page
      perf config: Document 'man.viewer' variable in man page
      perf config: Document 'pager.<subcommand>' variables in man page
      perf config: Document 'kmem.default' variable in man page
      perf config: Document 'record.build-id' variable in man page

 tools/build/Makefile.feature             |   2 +
 tools/build/feature/Makefile             |   4 +
 tools/build/feature/test-all.c           |   5 +
 tools/build/feature/test-libcrypto.c     |  17 +
 tools/perf/Documentation/perf-config.txt | 143 +++++++
 tools/perf/Documentation/perf-inject.txt |   7 +
 tools/perf/Makefile                      |  16 +-
 tools/perf/Makefile.perf                 |   3 +
 tools/perf/builtin-inject.c              | 107 ++++-
 tools/perf/config/Makefile               |  11 +
 tools/perf/jvmti/Makefile                |  76 ++++
 tools/perf/jvmti/jvmti_agent.c           | 465 +++++++++++++++++++++
 tools/perf/jvmti/jvmti_agent.h           |  36 ++
 tools/perf/jvmti/libjvmti.c              | 304 ++++++++++++++
 tools/perf/tests/make                    |  11 +-
 tools/perf/util/Build                    |   6 +
 tools/perf/util/demangle-java.c          | 199 +++++++++
 tools/perf/util/demangle-java.h          |  10 +
 tools/perf/util/event.c                  |   2 +-
 tools/perf/util/genelf.c                 | 449 +++++++++++++++++++++
 tools/perf/util/genelf.h                 |  67 +++
 tools/perf/util/genelf_debug.c           | 610 ++++++++++++++++++++++++++++
 tools/perf/util/jit.h                    |  15 +
 tools/perf/util/jitdump.c                | 672 +++++++++++++++++++++++++++++++
 tools/perf/util/jitdump.h                | 124 ++++++
 tools/perf/util/symbol-elf.c             |   3 +
 26 files changed, 3357 insertions(+), 7 deletions(-)
 create mode 100644 tools/build/feature/test-libcrypto.c
 create mode 100644 tools/perf/jvmti/Makefile
 create mode 100644 tools/perf/jvmti/jvmti_agent.c
 create mode 100644 tools/perf/jvmti/jvmti_agent.h
 create mode 100644 tools/perf/jvmti/libjvmti.c
 create mode 100644 tools/perf/util/demangle-java.c
 create mode 100644 tools/perf/util/demangle-java.h
 create mode 100644 tools/perf/util/genelf.c
 create mode 100644 tools/perf/util/genelf.h
 create mode 100644 tools/perf/util/genelf_debug.c
 create mode 100644 tools/perf/util/jit.h
 create mode 100644 tools/perf/util/jitdump.c
 create mode 100644 tools/perf/util/jitdump.h

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
>         Please consider pulling, it is the pull req from yesterday, minus a patch
> that introduced a problem, plus a fex fixes.
> 
>         I am investigating a problem I noticed for another patch that is upstream
> and after that will get back to the removed patch from yesterday's batch,
> 
> - Arnaldo
> 
> The following changes since commit 6645f3187f5beb64f7a40515cfa18f3889264ece:
> 
>   Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-04-03 07:00:02 +0200)
> 
> are available in the git repository at:
> 
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo
> 
> for you to fetch changes up to a1e12da4796a4ddd0e911687a290eb396d1c64bf:
> 
>   perf tools: Add 'I' event modifier for exclude_idle bit (2015-04-08 11:00:16 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> - Teach about perf_event_attr.clockid to 'perf record' (Peter Zijlstra)
> 
> - perf sched replay improvements for high CPU core count machines (Yunlong Song)
> 
> - Consider PERF_RECORD_ events with cpumode == 0 in 'perf top', removing one
>   cause of long term memory usage buildup, i.e. not processing PERF_RECORD_EXIT
>   events (Arnaldo Carvalho de Melo)
> 
> - Add 'I' event modifier for perf_event_attr.exclude_idle bit (Jiri Olsa)
> 
> - Respect -i option 'in perf kmem' (Jiri Olsa)
> 
> Infrastructure:
> 
> - Honor operator priority in libtraceevent (Namhyung Kim)
> 
> - Merge all perf_event_attr print functions (Peter Zijlstra)
> 
> - Check kmaps access to make code more robust (Wang Nan)
> 
> - Fix inverted logic in perf_mmap__empty() (He Kuang)
> 
> - Fix ARM 32 'perf probe' building error (Wang Nan)
> 
> - Fix perf_event_attr tests (Jiri Olsa)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> He Kuang (1):
>       perf evlist: Fix inverted logic in perf_mmap__empty
> 
> Jiri Olsa (3):
>       perf kmem: Respect -i option
>       perf tests: Fix attr tests
>       perf tools: Add 'I' event modifier for exclude_idle bit
> 
> Namhyung Kim (1):
>       tools lib traceevent: Honor operator priority
> 
> Peter Zijlstra (2):
>       perf record: Add clockid parameter
>       perf tools: Merge all perf_event_attr print functions
> 
> Wang Nan (3):
>       perf kmaps: Check kmaps to make code more robust
>       perf probe: Fix ARM 32 building error
>       perf report: Don't call map__kmap if map is NULL.
> 
> Yunlong Song (9):
>       perf sched replay: Use struct task_desc instead of struct task_task for correct meaning
>       perf sched replay: Increase the MAX_PID value to fix assertion failure problem
>       perf sched replay: Alloc the memory of pid_to_task dynamically to adapt to the unexpected change of pid_max
>       perf sched replay: Realloc the memory of pid_to_task stepwise to adapt to the different pid_max configurations
>       perf sched replay: Fix the segmentation fault problem caused by pr_err in threads
>       perf sched replay: Handle the dead halt of sem_wait when create_tasks() fails for any task
>       perf sched replay: Fix the EMFILE error caused by the limitation of the maximum open files
>       perf sched replay: Support using -f to override perf.data file ownership
>       perf sched replay: Use replay_repeat to calculate the runavg of cpu usage instead of the default value 10
> 
>  tools/lib/traceevent/event-parse.c       |  17 +-
>  tools/perf/Documentation/perf-list.txt   |   1 +
>  tools/perf/Documentation/perf-record.txt |   7 +
>  tools/perf/builtin-kmem.c                |   3 +-
>  tools/perf/builtin-record.c              |  87 +++++++++
>  tools/perf/builtin-report.c              |   2 +-
>  tools/perf/builtin-sched.c               |  67 +++++--
>  tools/perf/perf.h                        |   2 +
>  tools/perf/tests/attr/base-record        |   2 +-
>  tools/perf/tests/attr/base-stat          |   2 +-
>  tools/perf/tests/parse-events.c          |  40 ++++
>  tools/perf/util/evlist.c                 |   2 +-
>  tools/perf/util/evsel.c                  | 325 ++++++++++++++++---------------
>  tools/perf/util/evsel.h                  |   6 +
>  tools/perf/util/header.c                 |  28 +--
>  tools/perf/util/machine.c                |   5 +-
>  tools/perf/util/map.c                    |  20 ++
>  tools/perf/util/map.h                    |   6 +-
>  tools/perf/util/parse-events.c           |   8 +-
>  tools/perf/util/parse-events.l           |   2 +-
>  tools/perf/util/probe-event.c            |   5 +-
>  tools/perf/util/session.c                |   3 +
>  tools/perf/util/symbol-elf.c             |  16 +-
>  tools/perf/util/symbol.c                 |  34 +++-
>  24 files changed, 477 insertions(+), 213 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

        Please consider pulling, it is the pull req from yesterday, minus a patch
that introduced a problem, plus a fex fixes.

        I am investigating a problem I noticed for another patch that is upstream
and after that will get back to the removed patch from yesterday's batch,

- Arnaldo

The following changes since commit 6645f3187f5beb64f7a40515cfa18f3889264ece:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-04-03 07:00:02 +0200)

are available in the git repository at:


  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo

for you to fetch changes up to a1e12da4796a4ddd0e911687a290eb396d1c64bf:

  perf tools: Add 'I' event modifier for exclude_idle bit (2015-04-08 11:00:16 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

- Teach about perf_event_attr.clockid to 'perf record' (Peter Zijlstra)

- perf sched replay improvements for high CPU core count machines (Yunlong Song)

- Consider PERF_RECORD_ events with cpumode == 0 in 'perf top', removing one
  cause of long term memory usage buildup, i.e. not processing PERF_RECORD_EXIT
  events (Arnaldo Carvalho de Melo)

- Add 'I' event modifier for perf_event_attr.exclude_idle bit (Jiri Olsa)

- Respect -i option 'in perf kmem' (Jiri Olsa)

Infrastructure:

- Honor operator priority in libtraceevent (Namhyung Kim)

- Merge all perf_event_attr print functions (Peter Zijlstra)

- Check kmaps access to make code more robust (Wang Nan)

- Fix inverted logic in perf_mmap__empty() (He Kuang)

- Fix ARM 32 'perf probe' building error (Wang Nan)

- Fix perf_event_attr tests (Jiri Olsa)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
He Kuang (1):
      perf evlist: Fix inverted logic in perf_mmap__empty

Jiri Olsa (3):
      perf kmem: Respect -i option
      perf tests: Fix attr tests
      perf tools: Add 'I' event modifier for exclude_idle bit

Namhyung Kim (1):
      tools lib traceevent: Honor operator priority

Peter Zijlstra (2):
      perf record: Add clockid parameter
      perf tools: Merge all perf_event_attr print functions

Wang Nan (3):
      perf kmaps: Check kmaps to make code more robust
      perf probe: Fix ARM 32 building error
      perf report: Don't call map__kmap if map is NULL.

Yunlong Song (9):
      perf sched replay: Use struct task_desc instead of struct task_task for correct meaning
      perf sched replay: Increase the MAX_PID value to fix assertion failure problem
      perf sched replay: Alloc the memory of pid_to_task dynamically to adapt to the unexpected change of pid_max
      perf sched replay: Realloc the memory of pid_to_task stepwise to adapt to the different pid_max configurations
      perf sched replay: Fix the segmentation fault problem caused by pr_err in threads
      perf sched replay: Handle the dead halt of sem_wait when create_tasks() fails for any task
      perf sched replay: Fix the EMFILE error caused by the limitation of the maximum open files
      perf sched replay: Support using -f to override perf.data file ownership
      perf sched replay: Use replay_repeat to calculate the runavg of cpu usage instead of the default value 10

 tools/lib/traceevent/event-parse.c       |  17 +-
 tools/perf/Documentation/perf-list.txt   |   1 +
 tools/perf/Documentation/perf-record.txt |   7 +
 tools/perf/builtin-kmem.c                |   3 +-
 tools/perf/builtin-record.c              |  87 +++++++++
 tools/perf/builtin-report.c              |   2 +-
 tools/perf/builtin-sched.c               |  67 +++++--
 tools/perf/perf.h                        |   2 +
 tools/perf/tests/attr/base-record        |   2 +-
 tools/perf/tests/attr/base-stat          |   2 +-
 tools/perf/tests/parse-events.c          |  40 ++++
 tools/perf/util/evlist.c                 |   2 +-
 tools/perf/util/evsel.c                  | 325 ++++++++++++++++---------------
 tools/perf/util/evsel.h                  |   6 +
 tools/perf/util/header.c                 |  28 +--
 tools/perf/util/machine.c                |   5 +-
 tools/perf/util/map.c                    |  20 ++
 tools/perf/util/map.h                    |   6 +-
 tools/perf/util/parse-events.c           |   8 +-
 tools/perf/util/parse-events.l           |   2 +-
 tools/perf/util/probe-event.c            |   5 +-
 tools/perf/util/session.c                |   3 +
 tools/perf/util/symbol-elf.c             |  16 +-
 tools/perf/util/symbol.c                 |  34 +++-
 24 files changed, 477 insertions(+), 213 deletions(-)

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling, this is on top of my previous pull request,
> 
> Thanks,
> 
> - Arnaldo
> 
> The following changes since commit 0c8c20779c5d56b93b8cb4cd30ba129a927ab437:
> 
>   perf report: Don't allow empty argument for '-t'. (2015-03-19 13:53:28 -0300)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-2
> 
> for you to fetch changes up to ca33380adf74afb985bf7aab09ec46707a5d2d57:
> 
>   perf tools: Use kmod_path__parse for machine__new_dso (2015-03-21 14:58:07 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> - Handle legacy syscalls tracepoints (David Ahern, Arnaldo Carvalho de Melo)
> 
> - Indicate which callchain entries are annotated in the
>   TUI hists browser (report/top) (Arnaldo Carvalho de Melo)
> 
> - Fix failure to add multiple probes without debuginfo (He Kuang)
> 
> - Fix 'trace' summary_only option (David Ahern)
> 
> - Fix race in build_id_cache__add_s() in 'buildid-cache' (Milos Vyletel)
> 
> - Don't allow empty argument for field-separator, fixing segfault (Wang Nan)
> 
> Infrastructure:
> 
> - Add destructor for format_field in libtraceevent (David Ahern)
> 
> - Prep work for support lzma compressed kernel modules (Jiri Olsa)
> 
> - Update .gitignore with recently added/renamed feature detection files (Yunlong Song)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (2):
>       perf trace: Handle legacy syscalls tracepoints
>       perf hists browser: Indicate which callchain entries are annotated
> 
> David Ahern (2):
>       perf trace: Fix summary_only option
>       tools lib traceevent: Add destructor for format_field
> 
> He Kuang (1):
>       perf probe: Fix failure to add multiple probes without debuginfo
> 
> Jiri Olsa (10):
>       perf build: Fix feature_check name clash
>       perf build: Separate feature make support into config/Makefile.feature
>       perf build: Make features checks directory configurable
>       perf build: Move feature checks code under tools/build
>       tools build: Add feature check for lzma library
>       perf tools: Add lzma decompression support for kernel module
>       perf tools: Add kmod_path__parse function
>       perf tools: Add dsos__addnew function
>       perf tools: Add machine__module_dso function
>       perf tools: Use kmod_path__parse for machine__new_dso
> 
> Milos Vyletel (1):
>       perf tools: Fix race in build_id_cache__add_s()
> 
> Wang Nan (1):
>       perf tools: Don't allow empty argument for field-separator
> 
> Yunlong Song (2):
>       perf build: Use FEATURE-DUMP instead of PERF-FEATURES in the .gitignore file
>       perf build: Add config/feature-checks/*.output to the .gitignore file
> 
>  tools/build/Makefile.feature                       | 171 ++++++++++++++++++++
>  .../feature-checks => build/feature}/.gitignore    |   1 +
>  .../feature-checks => build/feature}/Makefile      |   8 +-
>  .../feature-checks => build/feature}/test-all.c    |   5 +
>  .../feature}/test-backtrace.c                      |   0
>  .../feature-checks => build/feature}/test-bionic.c |   0
>  .../feature}/test-compile.c                        |   0
>  .../feature}/test-cplus-demangle.c                 |   0
>  .../feature-checks => build/feature}/test-dwarf.c  |   0
>  .../feature}/test-fortify-source.c                 |   0
>  .../feature-checks => build/feature}/test-glibc.c  |   0
>  .../feature}/test-gtk2-infobar.c                   |   0
>  .../feature-checks => build/feature}/test-gtk2.c   |   0
>  .../feature-checks => build/feature}/test-hello.c  |   0
>  .../feature}/test-libaudit.c                       |   0
>  .../feature}/test-libbabeltrace.c                  |   0
>  .../feature-checks => build/feature}/test-libbfd.c |   0
>  .../feature}/test-libdw-dwarf-unwind.c             |   0
>  .../feature}/test-libelf-getphdrnum.c              |   0
>  .../feature}/test-libelf-mmap.c                    |   0
>  .../feature-checks => build/feature}/test-libelf.c |   0
>  .../feature}/test-libnuma.c                        |   0
>  .../feature}/test-libperl.c                        |   0
>  .../feature}/test-libpython-version.c              |   0
>  .../feature}/test-libpython.c                      |   0
>  .../feature}/test-libslang.c                       |   0
>  .../feature}/test-libunwind-debug-frame.c          |   0
>  .../feature}/test-libunwind.c                      |   0
>  tools/build/feature/test-lzma.c                    |  10 ++
>  .../feature}/test-pthread-attr-setaffinity-np.c    |   0
>  .../feature}/test-stackprotector-all.c             |   0
>  .../feature}/test-sync-compare-and-swap.c          |   0
>  .../feature}/test-timerfd.c                        |   0
>  .../feature-checks => build/feature}/test-zlib.c   |   0
>  tools/lib/traceevent/event-parse.c                 |  11 +-
>  tools/lib/traceevent/event-parse.h                 |   1 +
>  tools/perf/.gitignore                              |   2 +-
>  tools/perf/Makefile.perf                           |   4 +-
>  tools/perf/builtin-diff.c                          |   2 +-
>  tools/perf/builtin-mem.c                           |   2 +-
>  tools/perf/builtin-trace.c                         |  21 ++-
>  tools/perf/config/Makefile                         | 176 ++-------------------
>  tools/perf/tests/Build                             |   1 +
>  tools/perf/tests/builtin-test.c                    |   4 +
>  tools/perf/tests/kmod-path.c                       |  73 +++++++++
>  tools/perf/tests/tests.h                           |   1 +
>  tools/perf/ui/browsers/hists.c                     |   4 +-
>  tools/perf/util/Build                              |   1 +
>  tools/perf/util/build-id.c                         |   3 +-
>  tools/perf/util/dso.c                              |  90 +++++++++--
>  tools/perf/util/dso.h                              |  15 ++
>  tools/perf/util/lzma.c                             |  95 +++++++++++
>  tools/perf/util/machine.c                          |  83 +++++-----
>  tools/perf/util/probe-event.c                      |   4 +-
>  tools/perf/util/util.h                             |   4 +
>  55 files changed, 557 insertions(+), 235 deletions(-)
>  create mode 100644 tools/build/Makefile.feature
>  rename tools/{perf/config/feature-checks => build/feature}/.gitignore (52%)
>  rename tools/{perf/config/feature-checks => build/feature}/Makefile (96%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-all.c (97%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-backtrace.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-bionic.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-compile.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-cplus-demangle.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-dwarf.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-fortify-source.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-glibc.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-gtk2-infobar.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-gtk2.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-hello.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libaudit.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libbabeltrace.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libbfd.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libdw-dwarf-unwind.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libelf-getphdrnum.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libelf-mmap.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libelf.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libnuma.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libperl.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libpython-version.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libpython.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libslang.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libunwind-debug-frame.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libunwind.c (100%)
>  create mode 100644 tools/build/feature/test-lzma.c
>  rename tools/{perf/config/feature-checks => build/feature}/test-pthread-attr-setaffinity-np.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-stackprotector-all.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-sync-compare-and-swap.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-timerfd.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-zlib.c (100%)
>  create mode 100644 tools/perf/tests/kmod-path.c
>  create mode 100644 tools/perf/util/lzma.c

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling, this is on top of my previous pull request,

Thanks,

- Arnaldo

The following changes since commit 0c8c20779c5d56b93b8cb4cd30ba129a927ab437:

  perf report: Don't allow empty argument for '-t'. (2015-03-19 13:53:28 -0300)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-2

for you to fetch changes up to ca33380adf74afb985bf7aab09ec46707a5d2d57:

  perf tools: Use kmod_path__parse for machine__new_dso (2015-03-21 14:58:07 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

- Handle legacy syscalls tracepoints (David Ahern, Arnaldo Carvalho de Melo)

- Indicate which callchain entries are annotated in the
  TUI hists browser (report/top) (Arnaldo Carvalho de Melo)

- Fix failure to add multiple probes without debuginfo (He Kuang)

- Fix 'trace' summary_only option (David Ahern)

- Fix race in build_id_cache__add_s() in 'buildid-cache' (Milos Vyletel)

- Don't allow empty argument for field-separator, fixing segfault (Wang Nan)

Infrastructure:

- Add destructor for format_field in libtraceevent (David Ahern)

- Prep work for support lzma compressed kernel modules (Jiri Olsa)

- Update .gitignore with recently added/renamed feature detection files (Yunlong Song)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Arnaldo Carvalho de Melo (2):
      perf trace: Handle legacy syscalls tracepoints
      perf hists browser: Indicate which callchain entries are annotated

David Ahern (2):
      perf trace: Fix summary_only option
      tools lib traceevent: Add destructor for format_field

He Kuang (1):
      perf probe: Fix failure to add multiple probes without debuginfo

Jiri Olsa (10):
      perf build: Fix feature_check name clash
      perf build: Separate feature make support into config/Makefile.feature
      perf build: Make features checks directory configurable
      perf build: Move feature checks code under tools/build
      tools build: Add feature check for lzma library
      perf tools: Add lzma decompression support for kernel module
      perf tools: Add kmod_path__parse function
      perf tools: Add dsos__addnew function
      perf tools: Add machine__module_dso function
      perf tools: Use kmod_path__parse for machine__new_dso

Milos Vyletel (1):
      perf tools: Fix race in build_id_cache__add_s()

Wang Nan (1):
      perf tools: Don't allow empty argument for field-separator

Yunlong Song (2):
      perf build: Use FEATURE-DUMP instead of PERF-FEATURES in the .gitignore file
      perf build: Add config/feature-checks/*.output to the .gitignore file

 tools/build/Makefile.feature                       | 171 ++++++++++++++++++++
 .../feature-checks => build/feature}/.gitignore    |   1 +
 .../feature-checks => build/feature}/Makefile      |   8 +-
 .../feature-checks => build/feature}/test-all.c    |   5 +
 .../feature}/test-backtrace.c                      |   0
 .../feature-checks => build/feature}/test-bionic.c |   0
 .../feature}/test-compile.c                        |   0
 .../feature}/test-cplus-demangle.c                 |   0
 .../feature-checks => build/feature}/test-dwarf.c  |   0
 .../feature}/test-fortify-source.c                 |   0
 .../feature-checks => build/feature}/test-glibc.c  |   0
 .../feature}/test-gtk2-infobar.c                   |   0
 .../feature-checks => build/feature}/test-gtk2.c   |   0
 .../feature-checks => build/feature}/test-hello.c  |   0
 .../feature}/test-libaudit.c                       |   0
 .../feature}/test-libbabeltrace.c                  |   0
 .../feature-checks => build/feature}/test-libbfd.c |   0
 .../feature}/test-libdw-dwarf-unwind.c             |   0
 .../feature}/test-libelf-getphdrnum.c              |   0
 .../feature}/test-libelf-mmap.c                    |   0
 .../feature-checks => build/feature}/test-libelf.c |   0
 .../feature}/test-libnuma.c                        |   0
 .../feature}/test-libperl.c                        |   0
 .../feature}/test-libpython-version.c              |   0
 .../feature}/test-libpython.c                      |   0
 .../feature}/test-libslang.c                       |   0
 .../feature}/test-libunwind-debug-frame.c          |   0
 .../feature}/test-libunwind.c                      |   0
 tools/build/feature/test-lzma.c                    |  10 ++
 .../feature}/test-pthread-attr-setaffinity-np.c    |   0
 .../feature}/test-stackprotector-all.c             |   0
 .../feature}/test-sync-compare-and-swap.c          |   0
 .../feature}/test-timerfd.c                        |   0
 .../feature-checks => build/feature}/test-zlib.c   |   0
 tools/lib/traceevent/event-parse.c                 |  11 +-
 tools/lib/traceevent/event-parse.h                 |   1 +
 tools/perf/.gitignore                              |   2 +-
 tools/perf/Makefile.perf                           |   4 +-
 tools/perf/builtin-diff.c                          |   2 +-
 tools/perf/builtin-mem.c                           |   2 +-
 tools/perf/builtin-trace.c                         |  21 ++-
 tools/perf/config/Makefile                         | 176 ++-------------------
 tools/perf/tests/Build                             |   1 +
 tools/perf/tests/builtin-test.c                    |   4 +
 tools/perf/tests/kmod-path.c                       |  73 +++++++++
 tools/perf/tests/tests.h                           |   1 +
 tools/perf/ui/browsers/hists.c                     |   4 +-
 tools/perf/util/Build                              |   1 +
 tools/perf/util/build-id.c                         |   3 +-
 tools/perf/util/dso.c                              |  90 +++++++++--
 tools/perf/util/dso.h                              |  15 ++
 tools/perf/util/lzma.c                             |  95 +++++++++++
 tools/perf/util/machine.c                          |  83 +++++-----
 tools/perf/util/probe-event.c                      |   4 +-
 tools/perf/util/util.h                             |   4 +
 55 files changed, 557 insertions(+), 235 deletions(-)
 create mode 100644 tools/build/Makefile.feature
 rename tools/{perf/config/feature-checks => build/feature}/.gitignore (52%)
 rename tools/{perf/config/feature-checks => build/feature}/Makefile (96%)
 rename tools/{perf/config/feature-checks => build/feature}/test-all.c (97%)
 rename tools/{perf/config/feature-checks => build/feature}/test-backtrace.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-bionic.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-compile.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-cplus-demangle.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-dwarf.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-fortify-source.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-glibc.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-gtk2-infobar.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-gtk2.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-hello.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libaudit.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libbabeltrace.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libbfd.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libdw-dwarf-unwind.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libelf-getphdrnum.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libelf-mmap.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libelf.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libnuma.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libperl.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libpython-version.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libpython.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libslang.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libunwind-debug-frame.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libunwind.c (100%)
 create mode 100644 tools/build/feature/test-lzma.c
 rename tools/{perf/config/feature-checks => build/feature}/test-pthread-attr-setaffinity-np.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-stackprotector-all.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-sync-compare-and-swap.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-timerfd.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-zlib.c (100%)
 create mode 100644 tools/perf/tests/kmod-path.c
 create mode 100644 tools/perf/util/lzma.c

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit 0afb1704010f60e7ae85aef0f93fc10f2d99761e:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-02-26 12:25:20 +0100)

are available in the git repository at:


  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo

for you to fetch changes up to fefd2d9619de3bf0bf02a8622e9f445c3d19cc3f:

  perf report: Fix branch stack mode cannot be set (2015-02-27 15:52:42 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

User visible:

- Fix SIGBUS failures due to misaligned accesses in Sparc64 (David Ahern)

- Fix branch stack mode in 'perf report' (He Kuang)

- Fix a 'perf probe' operator precedence bug (He Kuang)

- Fix Support for different binaries with same name in 'perf diff' (Kan Liang)

- Check kprobes blacklist when adding new events via 'perf probe' (Masami Hiramatsu)

- Add --purge FILE to remove all caches of FILE in 'perf buildid-cache' (Masami Hiramatsu)

- Show usage with some incorrect params (Masami Hiramatsu)

- Add new buildid cache if update target is not cached in 'buildid-cache' (Masami Hiramatsu)

- Allow listing events with 'tracepoint' prefix in 'perf list' (Yunlong Song)

- Sort the output of 'perf list' (Yunlong Song)

- Fix bash completion of 'perf --' (Yunlong Song)

Developer Zone:

- Handle strdup() failure path in 'perf probe' (Arnaldo Carvalho de Melo)

- Fix get_real_path to free allocated memory in error path in 'perf probe' (Masami Hiramatsu)

- Use pr_debug instead of verbose && pr_info perf buildid-cache (Masami Hiramatsu)

- Fix building of 'perf data' with some gcc versions due to incorrect array struct
  entry (Yunlong Song)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Arnaldo Carvalho de Melo (1):
      perf probe: Handle strdup() failure

David Ahern (1):
      perf trace: Fix SIGBUS failures due to misaligned accesses

He Kuang (2):
      perf probe: Fix a precedence bug
      perf report: Fix branch stack mode cannot be set

Kan Liang (1):
      perf diff: Support for different binaries

Masami Hiramatsu (6):
      perf probe: Check kprobes blacklist when adding new events
      perf probe: Fix get_real_path to free allocated memory in error path
      perf buildid-cache: Add new buildid cache if update target is not cached
      perf buildid-cache: Add --purge FILE to remove all caches of FILE
      perf buildid-cache: Use pr_debug instead of verbose && pr_info
      perf buildid-cache: Show usage with incorrect params

Yunlong Song (8):
      perf data: Fix sentinel setting for data_cmds array
      perf list: Sort the output of 'perf list' to view more clearly
      perf list: Allow listing events with 'tracepoint' prefix
      perf list: Avoid confusion of perf output and the next command prompt
      perf tools: Remove the '--(null)' long_name for --list-opts
      perf list: Clean up the printing functions of hardware/software events
      perf list: Extend raw-dump to certain kind of events
      perf tools: Fix the bash completion problem of 'perf --*'

 tools/perf/Documentation/perf-buildid-cache.txt |  24 ++-
 tools/perf/Documentation/perf-diff.txt          |   5 +
 tools/perf/Documentation/perf-list.txt          |   6 +
 tools/perf/builtin-buildid-cache.c              |  72 ++++++--
 tools/perf/builtin-data.c                       |   2 +-
 tools/perf/builtin-list.c                       |  27 ++-
 tools/perf/builtin-report.c                     |   2 +-
 tools/perf/builtin-trace.c                      |  36 +++-
 tools/perf/perf-completion.sh                   |   6 +-
 tools/perf/perf.c                               |  28 ++++
 tools/perf/util/build-id.c                      | 105 ++++++++++--
 tools/perf/util/build-id.h                      |   4 +
 tools/perf/util/parse-events.c                  | 210 +++++++++++++++++-------
 tools/perf/util/parse-events.h                  |  11 +-
 tools/perf/util/parse-options.c                 |   5 +-
 tools/perf/util/probe-event.c                   | 117 ++++++++++++-
 tools/perf/util/sort.c                          |   9 +
 17 files changed, 542 insertions(+), 127 deletions(-)

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@infradead.org> wrote:

> From: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
> 
> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> The following changes since commit 3e7e09dbd1080de5dcf10092830e39bc2e2932ec:
> 
>   Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2014-01-16 09:34:01 +0100)
> 
> are available in the git repository at:
> 
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux tags/perf-core-for-mingo
> 
> for you to fetch changes up to 2a29190c040c0b11e39197c67abf6f87e0a61f9a:
> 
>   perf tools: Remove unnecessary callchain cursor state restore on unmatch (2014-01-17 11:25:24 -0300)
> 
> ----------------------------------------------------------------
> Developer stuff:
> 
> . Improve callchain processing by removing unnecessary work. (Frederic Weisbecker)
> 
> . Fix comm override error handling (Frederic Weisbecker)
> 
> . Improve 'perf probe' exit path, release resources (Masami Hiramatsu)
> 
> . Improve libtraceevent plugins exit path, allowing the registering of
>   an unregister handler to be called at exit time (Namhyung Kim)
> 
> . Add an alias to the build test makefile (make -C tools/perf build-test)
>   (Namhyung Kim)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Frederic Weisbecker (3):
>       perf tools: Do proper comm override error handling
>       perf callchain: Spare double comparison of callchain first entry
>       perf tools: Remove unnecessary callchain cursor state restore on unmatch
> 
> Masami Hiramatsu (3):
>       perf probe: Release allocated probe_trace_event if failed
>       perf probe: Release all dynamically allocated parameters
>       perf symbols: Export elf_section_by_name and reuse
> 
> Namhyung Kim (13):
>       tools lib traceevent: Add pevent_unregister_event_handler()
>       tools lib traceevent: Add pevent_unregister_print_function()
>       tools lib traceevent: Unregister handler when function plugin is unloaded
>       tools lib traceevent: Unregister handler when hrtimer plugin is unloaded
>       tools lib traceevent: Unregister handler when kmem plugin is unloaded
>       tools lib traceevent: Unregister handler when kvm plugin is unloaded
>       tools lib traceevent: Unregister handler when sched_switch plugin is unloaded
>       tools lib traceevent: Unregister handler when mac80211 plugin is unloaded
>       tools lib traceevent: Unregister handler when cfg80211 plugin is unloaded
>       tools lib traceevent: Unregister handler when jbd2 plugin is is unloaded
>       tools lib traceevent: Unregister handler when scsi plugin is unloaded
>       tools lib traceevent: Unregister handler when xen plugin is unloaded
>       perf tools: Add 'build-test' make target
> 
>  tools/lib/traceevent/event-parse.c         | 136 ++++++++++++++++++++++++++---
>  tools/lib/traceevent/event-parse.h         |   5 ++
>  tools/lib/traceevent/plugin_cfg80211.c     |   6 ++
>  tools/lib/traceevent/plugin_function.c     |   3 +
>  tools/lib/traceevent/plugin_hrtimer.c      |  10 +++
>  tools/lib/traceevent/plugin_jbd2.c         |   9 ++
>  tools/lib/traceevent/plugin_kmem.c         |  22 +++++
>  tools/lib/traceevent/plugin_kvm.c          |  29 ++++++
>  tools/lib/traceevent/plugin_mac80211.c     |   7 ++
>  tools/lib/traceevent/plugin_sched_switch.c |  12 +++
>  tools/lib/traceevent/plugin_scsi.c         |   6 ++
>  tools/lib/traceevent/plugin_xen.c          |   6 ++
>  tools/perf/Makefile                        |   6 ++
>  tools/perf/builtin-probe.c                 |  48 ++++++++--
>  tools/perf/util/callchain.c                |  23 +++--
>  tools/perf/util/comm.c                     |  19 ++--
>  tools/perf/util/comm.h                     |   2 +-
>  tools/perf/util/probe-event.c              | 111 +++++++++++++----------
>  tools/perf/util/probe-event.h              |   6 ++
>  tools/perf/util/symbol-elf.c               |   5 +-
>  tools/perf/util/symbol.h                   |   5 ++
>  tools/perf/util/thread.c                   |   5 +-
>  tools/perf/util/unwind.c                   |  20 +----
>  23 files changed, 389 insertions(+), 112 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

From: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit 3e7e09dbd1080de5dcf10092830e39bc2e2932ec:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2014-01-16 09:34:01 +0100)

are available in the git repository at:


  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux tags/perf-core-for-mingo

for you to fetch changes up to 2a29190c040c0b11e39197c67abf6f87e0a61f9a:

  perf tools: Remove unnecessary callchain cursor state restore on unmatch (2014-01-17 11:25:24 -0300)

----------------------------------------------------------------
Developer stuff:

. Improve callchain processing by removing unnecessary work. (Frederic Weisbecker)

. Fix comm override error handling (Frederic Weisbecker)

. Improve 'perf probe' exit path, release resources (Masami Hiramatsu)

. Improve libtraceevent plugins exit path, allowing the registering of
  an unregister handler to be called at exit time (Namhyung Kim)

. Add an alias to the build test makefile (make -C tools/perf build-test)
  (Namhyung Kim)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Frederic Weisbecker (3):
      perf tools: Do proper comm override error handling
      perf callchain: Spare double comparison of callchain first entry
      perf tools: Remove unnecessary callchain cursor state restore on unmatch

Masami Hiramatsu (3):
      perf probe: Release allocated probe_trace_event if failed
      perf probe: Release all dynamically allocated parameters
      perf symbols: Export elf_section_by_name and reuse

Namhyung Kim (13):
      tools lib traceevent: Add pevent_unregister_event_handler()
      tools lib traceevent: Add pevent_unregister_print_function()
      tools lib traceevent: Unregister handler when function plugin is unloaded
      tools lib traceevent: Unregister handler when hrtimer plugin is unloaded
      tools lib traceevent: Unregister handler when kmem plugin is unloaded
      tools lib traceevent: Unregister handler when kvm plugin is unloaded
      tools lib traceevent: Unregister handler when sched_switch plugin is unloaded
      tools lib traceevent: Unregister handler when mac80211 plugin is unloaded
      tools lib traceevent: Unregister handler when cfg80211 plugin is unloaded
      tools lib traceevent: Unregister handler when jbd2 plugin is is unloaded
      tools lib traceevent: Unregister handler when scsi plugin is unloaded
      tools lib traceevent: Unregister handler when xen plugin is unloaded
      perf tools: Add 'build-test' make target

 tools/lib/traceevent/event-parse.c         | 136 ++++++++++++++++++++++++++---
 tools/lib/traceevent/event-parse.h         |   5 ++
 tools/lib/traceevent/plugin_cfg80211.c     |   6 ++
 tools/lib/traceevent/plugin_function.c     |   3 +
 tools/lib/traceevent/plugin_hrtimer.c      |  10 +++
 tools/lib/traceevent/plugin_jbd2.c         |   9 ++
 tools/lib/traceevent/plugin_kmem.c         |  22 +++++
 tools/lib/traceevent/plugin_kvm.c          |  29 ++++++
 tools/lib/traceevent/plugin_mac80211.c     |   7 ++
 tools/lib/traceevent/plugin_sched_switch.c |  12 +++
 tools/lib/traceevent/plugin_scsi.c         |   6 ++
 tools/lib/traceevent/plugin_xen.c          |   6 ++
 tools/perf/Makefile                        |   6 ++
 tools/perf/builtin-probe.c                 |  48 ++++++++--
 tools/perf/util/callchain.c                |  23 +++--
 tools/perf/util/comm.c                     |  19 ++--
 tools/perf/util/comm.h                     |   2 +-
 tools/perf/util/probe-event.c              | 111 +++++++++++++----------
 tools/perf/util/probe-event.h              |   6 ++
 tools/perf/util/symbol-elf.c               |   5 +-
 tools/perf/util/symbol.h                   |   5 ++
 tools/perf/util/thread.c                   |   5 +-
 tools/perf/util/unwind.c                   |  20 +----
 23 files changed, 389 insertions(+), 112 deletions(-)

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@infradead.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> The following changes since commit 73787190d04a34e6da745da893b3ae8bedde418f:
> 
>   Merge branch 'perf/parse-events-4' of git://github.com/fweisbec/tracing into perf/core (2012-05-21 10:42:09 +0200)
> 
> are available in the git repository at:
> 
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux perf/core
> 
> for you to fetch changes up to 26252ea675663d1bc6747125fcaa2b7cc4ed8a03:
> 
>   perf evlist: Show event attribute details (2012-05-22 14:30:11 -0300)
> 
> ----------------------------------------------------------------
> Fixes and improvements for perf/core:
> 
> . Fix perf perl script build fallout from libtraceevent conversion,
>   from Frederic Weisbecker.
> 
> . Libtraceevent Makefile fixes, from Namhyung Kim
> 
> . Pipe mode fixes, from Stephane Eranian
> 
> . Event parsing improvements, from Jiri Olsa.
> 
> . Endianness fixes, from Jiri Olsa
> 
> . Bump the default sampling freq to 4 kHz, requested by Ingo Molnar.
> 
> . Show event attribute details, such as the sampling freq, in the
>   'perf evlist' command.
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Anshuman Khandual (1):
>       perf record: Fix documentation for branch stack sampling
> 
> Arnaldo Carvalho de Melo (2):
>       perf tools: Bump default sample freq to 4 kHz
>       perf evlist: Show event attribute details
> 
> Frederic Weisbecker (2):
>       perf script: Explicitly handle known default print arg type
>       perf script: Rename struct event to struct event_format in perl engine
> 
> Jiri Olsa (7):
>       perf test: Move parse event automated tests to separated object
>       perf tools: Add support for displaying event parser debug info
>       perf tools: Use allocated list for each parsed event
>       perf tools: Separate 'mem:' event scanner bits
>       perf tools: Add hardcoded name term for pmu events
>       perf tools: Carry perf_event_attr bitfield throught different endians
>       perf tools: Add union u64_swap type for swapping u64 data
> 
> Namhyung Kim (3):
>       perf tools: Rename libparsevent to libtraceevent in Makefile
>       perf tools: Always try to build libtraceevent
>       perf target: Add cpu flag to sample_type if target has cpu
> 
> Stephane Eranian (4):
>       perf tools: rename HEADER_TRACE_INFO to HEADER_TRACING_DATA
>       perf inject: Fix broken perf inject -b
>       perf tools: Fix piped mode read code
>       perf buildid-list: Work better with pipe mode
> 
>  tools/perf/Documentation/perf-evlist.txt           |    8 +
>  tools/perf/Documentation/perf-record.txt           |    2 +-
>  tools/perf/Makefile                                |   37 +-
>  tools/perf/builtin-buildid-list.c                  |    6 +-
>  tools/perf/builtin-evlist.c                        |  103 +++-
>  tools/perf/builtin-inject.c                        |    5 +
>  tools/perf/builtin-record.c                        |    6 +-
>  tools/perf/builtin-test.c                          |  552 +----------------
>  tools/perf/builtin-top.c                           |    5 +-
>  tools/perf/util/build-id.c                         |    2 +
>  tools/perf/util/evsel.c                            |   12 +-
>  tools/perf/util/header.c                           |   10 +-
>  tools/perf/util/header.h                           |    2 +-
>  tools/perf/util/parse-events-test.c                |  625 ++++++++++++++++++++
>  tools/perf/util/parse-events.c                     |   69 ++-
>  tools/perf/util/parse-events.h                     |   20 +-
>  tools/perf/util/parse-events.l                     |   26 +-
>  tools/perf/util/parse-events.y                     |   77 ++-
>  tools/perf/util/pmu.c                              |    4 +-
>  .../perf/util/scripting-engines/trace-event-perl.c |   16 +-
>  tools/perf/util/session.c                          |   68 ++-
>  tools/perf/util/types.h                            |    5 +
>  22 files changed, 1002 insertions(+), 658 deletions(-)
>  create mode 100644 tools/perf/util/parse-events-test.c

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit 73787190d04a34e6da745da893b3ae8bedde418f:

  Merge branch 'perf/parse-events-4' of git://github.com/fweisbec/tracing into perf/core (2012-05-21 10:42:09 +0200)

are available in the git repository at:


  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux perf/core

for you to fetch changes up to 26252ea675663d1bc6747125fcaa2b7cc4ed8a03:

  perf evlist: Show event attribute details (2012-05-22 14:30:11 -0300)

----------------------------------------------------------------
Fixes and improvements for perf/core:

. Fix perf perl script build fallout from libtraceevent conversion,
  from Frederic Weisbecker.

. Libtraceevent Makefile fixes, from Namhyung Kim

. Pipe mode fixes, from Stephane Eranian

. Event parsing improvements, from Jiri Olsa.

. Endianness fixes, from Jiri Olsa

. Bump the default sampling freq to 4 kHz, requested by Ingo Molnar.

. Show event attribute details, such as the sampling freq, in the
  'perf evlist' command.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Anshuman Khandual (1):
      perf record: Fix documentation for branch stack sampling

Arnaldo Carvalho de Melo (2):
      perf tools: Bump default sample freq to 4 kHz
      perf evlist: Show event attribute details

Frederic Weisbecker (2):
      perf script: Explicitly handle known default print arg type
      perf script: Rename struct event to struct event_format in perl engine

Jiri Olsa (7):
      perf test: Move parse event automated tests to separated object
      perf tools: Add support for displaying event parser debug info
      perf tools: Use allocated list for each parsed event
      perf tools: Separate 'mem:' event scanner bits
      perf tools: Add hardcoded name term for pmu events
      perf tools: Carry perf_event_attr bitfield throught different endians
      perf tools: Add union u64_swap type for swapping u64 data

Namhyung Kim (3):
      perf tools: Rename libparsevent to libtraceevent in Makefile
      perf tools: Always try to build libtraceevent
      perf target: Add cpu flag to sample_type if target has cpu

Stephane Eranian (4):
      perf tools: rename HEADER_TRACE_INFO to HEADER_TRACING_DATA
      perf inject: Fix broken perf inject -b
      perf tools: Fix piped mode read code
      perf buildid-list: Work better with pipe mode

 tools/perf/Documentation/perf-evlist.txt           |    8 +
 tools/perf/Documentation/perf-record.txt           |    2 +-
 tools/perf/Makefile                                |   37 +-
 tools/perf/builtin-buildid-list.c                  |    6 +-
 tools/perf/builtin-evlist.c                        |  103 +++-
 tools/perf/builtin-inject.c                        |    5 +
 tools/perf/builtin-record.c                        |    6 +-
 tools/perf/builtin-test.c                          |  552 +----------------
 tools/perf/builtin-top.c                           |    5 +-
 tools/perf/util/build-id.c                         |    2 +
 tools/perf/util/evsel.c                            |   12 +-
 tools/perf/util/header.c                           |   10 +-
 tools/perf/util/header.h                           |    2 +-
 tools/perf/util/parse-events-test.c                |  625 ++++++++++++++++++++
 tools/perf/util/parse-events.c                     |   69 ++-
 tools/perf/util/parse-events.h                     |   20 +-
 tools/perf/util/parse-events.l                     |   26 +-
 tools/perf/util/parse-events.y                     |   77 ++-
 tools/perf/util/pmu.c                              |    4 +-
 .../perf/util/scripting-engines/trace-event-perl.c |   16 +-
 tools/perf/util/session.c                          |   68 ++-
 tools/perf/util/types.h                            |    5 +
 22 files changed, 1002 insertions(+), 658 deletions(-)
 create mode 100644 tools/perf/util/parse-events-test.c