[GIT PULL 00/14] perf/core improvements and fixes

[GIT PULL 00/14] perf/core improvements and fixes

[Jiri Olsa]

hi Ingo,
please consider pulling

thanks,
jirka

The following changes since commit 7184062b94b4bfac08715fb786fd2df399c5d6ee:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2014-06-12 13:54:42 +0200)

are available in the git repository at:


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

for you to fetch changes up to 45dc1bb5c1d47f9519e2101f6b073bb4bb1d1f99:

  perf tests: Add test for closing dso objects on EMFILE error (2014-06-12 16:53:23 +0200)

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

. Honor user freq/interval properly in record command (Namhyung Kim)

. Speedup DWARF unwind (Jiri Olsa)

Signed-off-by: Jiri Olsa <jolsa@kernel.org>

----------------------------------------------------------------
Jiri Olsa (13):
      perf tools: Cache register accesses for unwind processing
      perf tools: Separate dso data related variables
      perf tools: Add data_fd into dso object
      perf tools: Add global list of opened dso objects
      perf tools: Add global count of opened dso objects
      perf tools: Cache dso data file descriptor
      perf tools: Add file size check and factor dso__data_read_offset
      perf tools: Allow to close dso fd in case of open failure
      perf tools: Add dso__data_* interface descriptons
      perf tests: Spawn child for each test
      perf tests: Allow reuse of test_file function
      perf tests: Add test for caching dso file descriptors
      perf tests: Add test for closing dso objects on EMFILE error

Namhyung Kim (1):
      perf record: Fix to honor user freq/interval properly

 tools/perf/tests/builtin-test.c    |  42 +++++-
 tools/perf/tests/dso-data.c        | 214 +++++++++++++++++++++++++++-
 tools/perf/tests/tests.h           |   2 +
 tools/perf/util/dso.c              | 279 +++++++++++++++++++++++++++++++++----
 tools/perf/util/dso.h              |  50 ++++++-
 tools/perf/util/event.h            |   5 +
 tools/perf/util/evsel.c            |   4 +-
 tools/perf/util/perf_regs.c        |  10 +-
 tools/perf/util/perf_regs.h        |   4 +-
 tools/perf/util/unwind-libunwind.c |   2 -
 10 files changed, 574 insertions(+), 38 deletions(-)

[PATCH 01/14] perf record: Fix to honor user freq/interval properly

[Jiri Olsa]

From: Namhyung Kim <namhyung@kernel.org>

When configuring event perf checked a wrong condition that user
specified both of freq (-F) and period (-c) or the event has no
default value.  This worked because most of events don't have default
value and only tracepoint events have default of 1 (and it's not
desirable to change it for those events).

However, Andi's downloadable event patch changes the situation so it
cannot change the value for those events.  Fix it by allowing override
the default value if user gives one of the options.

  $ perf record -a -e uops_retired.all -F 4000 sleep 1
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 0.325 MB perf.data (~14185 samples) ]

  $ perf evlist -F
  cpu/uops_retired.all/: sample_freq=4000

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/r/1402292617-26278-1-git-send-email-namhyung@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/util/evsel.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 21154da..8606175 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -589,10 +589,10 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts)
 	}
 
 	/*
-	 * We default some events to a 1 default interval. But keep
+	 * We default some events to have a default interval. But keep
 	 * it a weak assumption overridable by the user.
 	 */
-	if (!attr->sample_period || (opts->user_freq != UINT_MAX &&
+	if (!attr->sample_period || (opts->user_freq != UINT_MAX ||
 				     opts->user_interval != ULLONG_MAX)) {
 		if (opts->freq) {
 			perf_evsel__set_sample_bit(evsel, PERIOD);
-- 
1.8.3.1

[PATCH 02/14] perf tools: Cache register accesses for unwind processing

[Jiri Olsa]

Caching registers value into an array. Got about 4% speed up
of perf_reg_value function for report command processing
dwarf unwind stacks.

Output from report over 1.5 GB data with DWARF unwind stacks:
(TODO fix perf diff)

  current code:
   5.84%     perf  perf                       [.] perf_reg_value
  change:
   1.94%     perf  perf                       [.] perf_reg_value

And little bit of overall speed up:
(perf stat -r 5 -e '{cycles,instructions}:u' ...)

  current code:
   310,298,611,754      cycles                     ( +-  0.33% )
   439,669,689,341      instructions               ( +-  0.03% )

     188.656753166 seconds time elapsed            ( +-  0.82% )

  change:
   291,315,329,878      cycles                     ( +-  0.22% )
   391,763,485,304      instructions               ( +-  0.03%  )

     180.742249687 seconds time elapsed            ( +-  0.64% )

Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1401892622-30848-2-git-send-email-jolsa@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/util/event.h     |  5 +++++
 tools/perf/util/perf_regs.c | 10 +++++++++-
 tools/perf/util/perf_regs.h |  4 +++-
 3 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 9ba2eb3..e5dd40a 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -7,6 +7,7 @@
 #include "../perf.h"
 #include "map.h"
 #include "build-id.h"
+#include "perf_regs.h"
 
 struct mmap_event {
 	struct perf_event_header header;
@@ -89,6 +90,10 @@ struct regs_dump {
 	u64 abi;
 	u64 mask;
 	u64 *regs;
+
+	/* Cached values/mask filled by first register access. */
+	u64 cache_regs[PERF_REGS_MAX];
+	u64 cache_mask;
 };
 
 struct stack_dump {
diff --git a/tools/perf/util/perf_regs.c b/tools/perf/util/perf_regs.c
index a3539ef..43168fb 100644
--- a/tools/perf/util/perf_regs.c
+++ b/tools/perf/util/perf_regs.c
@@ -1,11 +1,15 @@
 #include <errno.h>
 #include "perf_regs.h"
+#include "event.h"
 
 int perf_reg_value(u64 *valp, struct regs_dump *regs, int id)
 {
 	int i, idx = 0;
 	u64 mask = regs->mask;
 
+	if (regs->cache_mask & (1 << id))
+		goto out;
+
 	if (!(mask & (1 << id)))
 		return -EINVAL;
 
@@ -14,6 +18,10 @@ int perf_reg_value(u64 *valp, struct regs_dump *regs, int id)
 			idx++;
 	}
 
-	*valp = regs->regs[idx];
+	regs->cache_mask |= (1 << id);
+	regs->cache_regs[id] = regs->regs[idx];
+
+out:
+	*valp = regs->cache_regs[id];
 	return 0;
 }
diff --git a/tools/perf/util/perf_regs.h b/tools/perf/util/perf_regs.h
index 79c78f7..980dbf7 100644
--- a/tools/perf/util/perf_regs.h
+++ b/tools/perf/util/perf_regs.h
@@ -2,7 +2,8 @@
 #define __PERF_REGS_H
 
 #include <linux/types.h>
-#include "event.h"
+
+struct regs_dump;
 
 #ifdef HAVE_PERF_REGS_SUPPORT
 #include <perf_regs.h>
@@ -11,6 +12,7 @@ int perf_reg_value(u64 *valp, struct regs_dump *regs, int id);
 
 #else
 #define PERF_REGS_MASK	0
+#define PERF_REGS_MAX	0
 
 static inline const char *perf_reg_name(int id __maybe_unused)
 {
-- 
1.8.3.1

[PATCH 03/14] perf tools: Separate dso data related variables

[Jiri Olsa]

Add separated structure/namespace for data related
variables. We are going to add mode of them, so this
way they will be clearly separated.

Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1401892622-30848-3-git-send-email-jolsa@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/util/dso.c | 8 ++++----
 tools/perf/util/dso.h | 7 ++++++-
 2 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index 64453d6..1c3cdaf 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -292,7 +292,7 @@ dso_cache__read(struct dso *dso, struct machine *machine,
 
 		cache->offset = cache_offset;
 		cache->size   = ret;
-		dso_cache__insert(&dso->cache, cache);
+		dso_cache__insert(&dso->data.cache, cache);
 
 		ret = dso_cache__memcpy(cache, offset, data, size);
 
@@ -310,7 +310,7 @@ static ssize_t dso_cache_read(struct dso *dso, struct machine *machine,
 {
 	struct dso_cache *cache;
 
-	cache = dso_cache__find(&dso->cache, offset);
+	cache = dso_cache__find(&dso->data.cache, offset);
 	if (cache)
 		return dso_cache__memcpy(cache, offset, data, size);
 	else
@@ -473,7 +473,7 @@ struct dso *dso__new(const char *name)
 		dso__set_short_name(dso, dso->name, false);
 		for (i = 0; i < MAP__NR_TYPES; ++i)
 			dso->symbols[i] = dso->symbol_names[i] = RB_ROOT;
-		dso->cache = RB_ROOT;
+		dso->data.cache = RB_ROOT;
 		dso->symtab_type = DSO_BINARY_TYPE__NOT_FOUND;
 		dso->binary_type = DSO_BINARY_TYPE__NOT_FOUND;
 		dso->loaded = 0;
@@ -506,7 +506,7 @@ void dso__delete(struct dso *dso)
 		dso->long_name_allocated = false;
 	}
 
-	dso_cache__free(&dso->cache);
+	dso_cache__free(&dso->data.cache);
 	dso__free_a2l(dso);
 	zfree(&dso->symsrc_filename);
 	free(dso);
diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
index 38efe95..7637fdd 100644
--- a/tools/perf/util/dso.h
+++ b/tools/perf/util/dso.h
@@ -76,7 +76,6 @@ struct dso {
 	struct list_head node;
 	struct rb_root	 symbols[MAP__NR_TYPES];
 	struct rb_root	 symbol_names[MAP__NR_TYPES];
-	struct rb_root	 cache;
 	void		 *a2l;
 	char		 *symsrc_filename;
 	unsigned int	 a2l_fails;
@@ -99,6 +98,12 @@ struct dso {
 	const char	 *long_name;
 	u16		 long_name_len;
 	u16		 short_name_len;
+
+	/* dso data file */
+	struct {
+		struct rb_root	 cache;
+	} data;
+
 	char		 name[0];
 };
 
-- 
1.8.3.1

[PATCH 04/14] perf tools: Add data_fd into dso object

[Jiri Olsa]

Adding data_fd into dso object so we could handle caching
of opened dso file data descriptors coming int next patches.

Adding dso__data_close interface to keep the data_fd updated
when the descriptor is closed.

Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1401892622-30848-4-git-send-email-jolsa@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/util/dso.c              | 23 +++++++++++++++++++----
 tools/perf/util/dso.h              |  3 +++
 tools/perf/util/unwind-libunwind.c |  4 ++--
 3 files changed, 24 insertions(+), 6 deletions(-)

diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index 1c3cdaf..5acb4b8 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -159,6 +159,14 @@ static int open_dso(struct dso *dso, struct machine *machine)
 	return fd;
 }
 
+void dso__data_close(struct dso *dso)
+{
+	if (dso->data.fd >= 0) {
+		close(dso->data.fd);
+		dso->data.fd = -1;
+	}
+}
+
 int dso__data_fd(struct dso *dso, struct machine *machine)
 {
 	enum dso_binary_type binary_type_data[] = {
@@ -168,8 +176,13 @@ int dso__data_fd(struct dso *dso, struct machine *machine)
 	};
 	int i = 0;
 
-	if (dso->binary_type != DSO_BINARY_TYPE__NOT_FOUND)
-		return open_dso(dso, machine);
+	if (dso->data.fd >= 0)
+		return dso->data.fd;
+
+	if (dso->binary_type != DSO_BINARY_TYPE__NOT_FOUND) {
+		dso->data.fd = open_dso(dso, machine);
+		return dso->data.fd;
+	}
 
 	do {
 		int fd;
@@ -178,7 +191,7 @@ int dso__data_fd(struct dso *dso, struct machine *machine)
 
 		fd = open_dso(dso, machine);
 		if (fd >= 0)
-			return fd;
+			return dso->data.fd = fd;
 
 	} while (dso->binary_type != DSO_BINARY_TYPE__NOT_FOUND);
 
@@ -301,7 +314,7 @@ dso_cache__read(struct dso *dso, struct machine *machine,
 	if (ret <= 0)
 		free(cache);
 
-	close(fd);
+	dso__data_close(dso);
 	return ret;
 }
 
@@ -474,6 +487,7 @@ struct dso *dso__new(const char *name)
 		for (i = 0; i < MAP__NR_TYPES; ++i)
 			dso->symbols[i] = dso->symbol_names[i] = RB_ROOT;
 		dso->data.cache = RB_ROOT;
+		dso->data.fd = -1;
 		dso->symtab_type = DSO_BINARY_TYPE__NOT_FOUND;
 		dso->binary_type = DSO_BINARY_TYPE__NOT_FOUND;
 		dso->loaded = 0;
@@ -506,6 +520,7 @@ void dso__delete(struct dso *dso)
 		dso->long_name_allocated = false;
 	}
 
+	dso__data_close(dso);
 	dso_cache__free(&dso->data.cache);
 	dso__free_a2l(dso);
 	zfree(&dso->symsrc_filename);
diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
index 7637fdd..e48dcf5 100644
--- a/tools/perf/util/dso.h
+++ b/tools/perf/util/dso.h
@@ -102,6 +102,7 @@ struct dso {
 	/* dso data file */
 	struct {
 		struct rb_root	 cache;
+		int		 fd;
 	} data;
 
 	char		 name[0];
@@ -147,6 +148,8 @@ int dso__read_binary_type_filename(const struct dso *dso, enum dso_binary_type t
 				   char *root_dir, char *filename, size_t size);
 
 int dso__data_fd(struct dso *dso, struct machine *machine);
+void dso__data_close(struct dso *dso);
+
 ssize_t dso__data_read_offset(struct dso *dso, struct machine *machine,
 			      u64 offset, u8 *data, ssize_t size);
 ssize_t dso__data_read_addr(struct dso *dso, struct map *map,
diff --git a/tools/perf/util/unwind-libunwind.c b/tools/perf/util/unwind-libunwind.c
index bd5768d..4f8dd9e 100644
--- a/tools/perf/util/unwind-libunwind.c
+++ b/tools/perf/util/unwind-libunwind.c
@@ -250,7 +250,7 @@ static int read_unwind_spec_eh_frame(struct dso *dso, struct machine *machine,
 
 	/* Check the .eh_frame section for unwinding info */
 	offset = elf_section_offset(fd, ".eh_frame_hdr");
-	close(fd);
+	dso__data_close(dso);
 
 	if (offset)
 		ret = unwind_spec_ehframe(dso, machine, offset,
@@ -271,7 +271,7 @@ static int read_unwind_spec_debug_frame(struct dso *dso,
 
 	/* Check the .debug_frame section for unwinding info */
 	*offset = elf_section_offset(fd, ".debug_frame");
-	close(fd);
+	dso__data_close(dso);
 
 	if (*offset)
 		return 0;
-- 
1.8.3.1

[PATCH 05/14] perf tools: Add global list of opened dso objects

[Jiri Olsa]

Adding global list of opened dso objects, so we can
track them and use the list for caching dso data file
descriptors.

Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1401892622-30848-5-git-send-email-jolsa@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/util/dso.c | 41 +++++++++++++++++++++++++++++++++++++++--
 tools/perf/util/dso.h |  1 +
 2 files changed, 40 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index 5acb4b8..5d7c7bc 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -136,7 +136,22 @@ int dso__read_binary_type_filename(const struct dso *dso,
 	return ret;
 }
 
-static int open_dso(struct dso *dso, struct machine *machine)
+/*
+ * Global list of open DSOs.
+ */
+static LIST_HEAD(dso__data_open);
+
+static void dso__list_add(struct dso *dso)
+{
+	list_add_tail(&dso->data.open_entry, &dso__data_open);
+}
+
+static void dso__list_del(struct dso *dso)
+{
+	list_del(&dso->data.open_entry);
+}
+
+static int __open_dso(struct dso *dso, struct machine *machine)
 {
 	int fd;
 	char *root_dir = (char *)"";
@@ -159,14 +174,35 @@ static int open_dso(struct dso *dso, struct machine *machine)
 	return fd;
 }
 
-void dso__data_close(struct dso *dso)
+static int open_dso(struct dso *dso, struct machine *machine)
+{
+	int fd = __open_dso(dso, machine);
+
+	if (fd > 0)
+		dso__list_add(dso);
+
+	return fd;
+}
+
+static void close_data_fd(struct dso *dso)
 {
 	if (dso->data.fd >= 0) {
 		close(dso->data.fd);
 		dso->data.fd = -1;
+		dso__list_del(dso);
 	}
 }
 
+static void close_dso(struct dso *dso)
+{
+	close_data_fd(dso);
+}
+
+void dso__data_close(struct dso *dso)
+{
+	close_dso(dso);
+}
+
 int dso__data_fd(struct dso *dso, struct machine *machine)
 {
 	enum dso_binary_type binary_type_data[] = {
@@ -499,6 +535,7 @@ struct dso *dso__new(const char *name)
 		dso->kernel = DSO_TYPE_USER;
 		dso->needs_swap = DSO_SWAP__UNSET;
 		INIT_LIST_HEAD(&dso->node);
+		INIT_LIST_HEAD(&dso->data.open_entry);
 	}
 
 	return dso;
diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
index e48dcf5..90988bf 100644
--- a/tools/perf/util/dso.h
+++ b/tools/perf/util/dso.h
@@ -103,6 +103,7 @@ struct dso {
 	struct {
 		struct rb_root	 cache;
 		int		 fd;
+		struct list_head open_entry;
 	} data;
 
 	char		 name[0];
-- 
1.8.3.1

[PATCH 06/14] perf tools: Add global count of opened dso objects

[Jiri Olsa]

Adding global count of opened dso objects so we could
properly limit the number of opened dso data file
descriptors.

Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1401892622-30848-6-git-send-email-jolsa@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/util/dso.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index 5d7c7bc..76e5c13 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -1,3 +1,4 @@
+#include <asm/bug.h>
 #include "symbol.h"
 #include "dso.h"
 #include "machine.h"
@@ -137,18 +138,23 @@ int dso__read_binary_type_filename(const struct dso *dso,
 }
 
 /*
- * Global list of open DSOs.
+ * Global list of open DSOs and the counter.
  */
 static LIST_HEAD(dso__data_open);
+static long dso__data_open_cnt;
 
 static void dso__list_add(struct dso *dso)
 {
 	list_add_tail(&dso->data.open_entry, &dso__data_open);
+	dso__data_open_cnt++;
 }
 
 static void dso__list_del(struct dso *dso)
 {
 	list_del(&dso->data.open_entry);
+	WARN_ONCE(dso__data_open_cnt <= 0,
+		  "DSO data fd counter out of bounds.");
+	dso__data_open_cnt--;
 }
 
 static int __open_dso(struct dso *dso, struct machine *machine)
-- 
1.8.3.1

[PATCH 07/14] perf tools: Cache dso data file descriptor

[Jiri Olsa]

Caching dso data file descriptors to avoid expensive re-opens
especially during DWARF unwind.

We keep dsos data file descriptors open until their count reaches
the half of the current fd open limit (RLIMIT_NOFILE). In this case
we close file descriptor of the first opened dso object.

We've got overall speedup (~27% for my workload) of report:
 'perf report --stdio -i perf-test.data' (3 runs)
  (perf-test.data size was around 12GB)

  current code:
   545,640,944,228      cycles                     ( +-  0.53% )
   785,255,798,320      instructions               ( +-  0.03% )

     366.340910010 seconds time elapsed            ( +-  3.65% )

  after change:
   435,895,036,114      cycles                     ( +-  0.26% )
   636,790,271,176      instructions               ( +-  0.04% )

     266.481463387 seconds time elapsed            ( +-  0.13% )

Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1401892622-30848-7-git-send-email-jolsa@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/util/dso.c              | 61 ++++++++++++++++++++++++++++++++++++--
 tools/perf/util/unwind-libunwind.c |  2 --
 2 files changed, 59 insertions(+), 4 deletions(-)

diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index 76e5c13..fbf6cc9 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -1,4 +1,6 @@
 #include <asm/bug.h>
+#include <sys/time.h>
+#include <sys/resource.h>
 #include "symbol.h"
 #include "dso.h"
 #include "machine.h"
@@ -180,12 +182,20 @@ static int __open_dso(struct dso *dso, struct machine *machine)
 	return fd;
 }
 
+static void check_data_close(void);
+
 static int open_dso(struct dso *dso, struct machine *machine)
 {
 	int fd = __open_dso(dso, machine);
 
-	if (fd > 0)
+	if (fd > 0) {
 		dso__list_add(dso);
+		/*
+		 * Check if we crossed the allowed number
+		 * of opened DSOs and close one if needed.
+		 */
+		check_data_close();
+	}
 
 	return fd;
 }
@@ -204,6 +214,54 @@ static void close_dso(struct dso *dso)
 	close_data_fd(dso);
 }
 
+static void close_first_dso(void)
+{
+	struct dso *dso;
+
+	dso = list_first_entry(&dso__data_open, struct dso, data.open_entry);
+	close_dso(dso);
+}
+
+static rlim_t get_fd_limit(void)
+{
+	struct rlimit l;
+	rlim_t limit = 0;
+
+	/* Allow half of the current open fd limit. */
+	if (getrlimit(RLIMIT_NOFILE, &l) == 0) {
+		if (l.rlim_cur == RLIM_INFINITY)
+			limit = l.rlim_cur;
+		else
+			limit = l.rlim_cur / 2;
+	} else {
+		pr_err("failed to get fd limit\n");
+		limit = 1;
+	}
+
+	return limit;
+}
+
+static bool may_cache_fd(void)
+{
+	static rlim_t limit;
+
+	if (!limit)
+		limit = get_fd_limit();
+
+	if (limit == RLIM_INFINITY)
+		return true;
+
+	return limit > (rlim_t) dso__data_open_cnt;
+}
+
+static void check_data_close(void)
+{
+	bool cache_fd = may_cache_fd();
+
+	if (!cache_fd)
+		close_first_dso();
+}
+
 void dso__data_close(struct dso *dso)
 {
 	close_dso(dso);
@@ -356,7 +414,6 @@ dso_cache__read(struct dso *dso, struct machine *machine,
 	if (ret <= 0)
 		free(cache);
 
-	dso__data_close(dso);
 	return ret;
 }
 
diff --git a/tools/perf/util/unwind-libunwind.c b/tools/perf/util/unwind-libunwind.c
index 4f8dd9e..25578b9 100644
--- a/tools/perf/util/unwind-libunwind.c
+++ b/tools/perf/util/unwind-libunwind.c
@@ -250,7 +250,6 @@ static int read_unwind_spec_eh_frame(struct dso *dso, struct machine *machine,
 
 	/* Check the .eh_frame section for unwinding info */
 	offset = elf_section_offset(fd, ".eh_frame_hdr");
-	dso__data_close(dso);
 
 	if (offset)
 		ret = unwind_spec_ehframe(dso, machine, offset,
@@ -271,7 +270,6 @@ static int read_unwind_spec_debug_frame(struct dso *dso,
 
 	/* Check the .debug_frame section for unwinding info */
 	*offset = elf_section_offset(fd, ".debug_frame");
-	dso__data_close(dso);
 
 	if (*offset)
 		return 0;
-- 
1.8.3.1

[PATCH 08/14] perf tools: Add file size check and factor dso__data_read_offset

[Jiri Olsa]

Adding file size check, because the lseek will succeed for
any offset behind file size and thus succeed when it was
expected to fail.

Factoring the code to check the offset against file size
earlier in the flow.

Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1401892622-30848-8-git-send-email-jolsa@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/util/dso.c | 64 +++++++++++++++++++++++++++++++++++++++------------
 tools/perf/util/dso.h |  1 +
 2 files changed, 50 insertions(+), 15 deletions(-)

diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index fbf6cc9..db63438 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -205,6 +205,7 @@ static void close_data_fd(struct dso *dso)
 	if (dso->data.fd >= 0) {
 		close(dso->data.fd);
 		dso->data.fd = -1;
+		dso->data.file_size = 0;
 		dso__list_del(dso);
 	}
 }
@@ -373,16 +374,10 @@ dso_cache__memcpy(struct dso_cache *cache, u64 offset,
 }
 
 static ssize_t
-dso_cache__read(struct dso *dso, struct machine *machine,
-		 u64 offset, u8 *data, ssize_t size)
+dso_cache__read(struct dso *dso, u64 offset, u8 *data, ssize_t size)
 {
 	struct dso_cache *cache;
 	ssize_t ret;
-	int fd;
-
-	fd = dso__data_fd(dso, machine);
-	if (fd < 0)
-		return -1;
 
 	do {
 		u64 cache_offset;
@@ -396,10 +391,10 @@ dso_cache__read(struct dso *dso, struct machine *machine,
 		cache_offset = offset & DSO__DATA_CACHE_MASK;
 		ret = -EINVAL;
 
-		if (-1 == lseek(fd, cache_offset, SEEK_SET))
+		if (-1 == lseek(dso->data.fd, cache_offset, SEEK_SET))
 			break;
 
-		ret = read(fd, cache->data, DSO__DATA_CACHE_SIZE);
+		ret = read(dso->data.fd, cache->data, DSO__DATA_CACHE_SIZE);
 		if (ret <= 0)
 			break;
 
@@ -417,8 +412,8 @@ dso_cache__read(struct dso *dso, struct machine *machine,
 	return ret;
 }
 
-static ssize_t dso_cache_read(struct dso *dso, struct machine *machine,
-			      u64 offset, u8 *data, ssize_t size)
+static ssize_t dso_cache_read(struct dso *dso, u64 offset,
+			      u8 *data, ssize_t size)
 {
 	struct dso_cache *cache;
 
@@ -426,11 +421,10 @@ static ssize_t dso_cache_read(struct dso *dso, struct machine *machine,
 	if (cache)
 		return dso_cache__memcpy(cache, offset, data, size);
 	else
-		return dso_cache__read(dso, machine, offset, data, size);
+		return dso_cache__read(dso, offset, data, size);
 }
 
-ssize_t dso__data_read_offset(struct dso *dso, struct machine *machine,
-			      u64 offset, u8 *data, ssize_t size)
+static ssize_t cached_read(struct dso *dso, u64 offset, u8 *data, ssize_t size)
 {
 	ssize_t r = 0;
 	u8 *p = data;
@@ -438,7 +432,7 @@ ssize_t dso__data_read_offset(struct dso *dso, struct machine *machine,
 	do {
 		ssize_t ret;
 
-		ret = dso_cache_read(dso, machine, offset, p, size);
+		ret = dso_cache_read(dso, offset, p, size);
 		if (ret < 0)
 			return ret;
 
@@ -458,6 +452,46 @@ ssize_t dso__data_read_offset(struct dso *dso, struct machine *machine,
 	return r;
 }
 
+static int data_file_size(struct dso *dso)
+{
+	struct stat st;
+
+	if (!dso->data.file_size) {
+		if (fstat(dso->data.fd, &st)) {
+			pr_err("dso mmap failed, fstat: %s\n", strerror(errno));
+			return -1;
+		}
+		dso->data.file_size = st.st_size;
+	}
+
+	return 0;
+}
+
+static ssize_t data_read_offset(struct dso *dso, u64 offset,
+				u8 *data, ssize_t size)
+{
+	if (data_file_size(dso))
+		return -1;
+
+	/* Check the offset sanity. */
+	if (offset > dso->data.file_size)
+		return -1;
+
+	if (offset + size < offset)
+		return -1;
+
+	return cached_read(dso, offset, data, size);
+}
+
+ssize_t dso__data_read_offset(struct dso *dso, struct machine *machine,
+			      u64 offset, u8 *data, ssize_t size)
+{
+	if (dso__data_fd(dso, machine) < 0)
+		return -1;
+
+	return data_read_offset(dso, offset, data, size);
+}
+
 ssize_t dso__data_read_addr(struct dso *dso, struct map *map,
 			    struct machine *machine, u64 addr,
 			    u8 *data, ssize_t size)
diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
index 90988bf..da47b13 100644
--- a/tools/perf/util/dso.h
+++ b/tools/perf/util/dso.h
@@ -103,6 +103,7 @@ struct dso {
 	struct {
 		struct rb_root	 cache;
 		int		 fd;
+		size_t		 file_size;
 		struct list_head open_entry;
 	} data;
 
-- 
1.8.3.1

[PATCH 09/14] perf tools: Allow to close dso fd in case of open failure

[Jiri Olsa]

Adding do_open function that tries to close opened
dso objects in case we fail to open the dso due to
to crossing the allowed RLIMIT_NOFILE limit.

Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1401892622-30848-9-git-send-email-jolsa@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/util/dso.c | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index db63438..c30752c 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -159,6 +159,27 @@ static void dso__list_del(struct dso *dso)
 	dso__data_open_cnt--;
 }
 
+static void close_first_dso(void);
+
+static int do_open(char *name)
+{
+	int fd;
+
+	do {
+		fd = open(name, O_RDONLY);
+		if (fd >= 0)
+			return fd;
+
+		pr_debug("dso open failed, mmap: %s\n", strerror(errno));
+		if (!dso__data_open_cnt || errno != EMFILE)
+			break;
+
+		close_first_dso();
+	} while (1);
+
+	return -1;
+}
+
 static int __open_dso(struct dso *dso, struct machine *machine)
 {
 	int fd;
@@ -177,7 +198,7 @@ static int __open_dso(struct dso *dso, struct machine *machine)
 		return -EINVAL;
 	}
 
-	fd = open(name, O_RDONLY);
+	fd = do_open(name);
 	free(name);
 	return fd;
 }
-- 
1.8.3.1

[PATCH 10/14] perf tools: Add dso__data_* interface descriptons

[Jiri Olsa]

Adding descriptions/explanations for dso__data_* interface
functions.

Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1401892622-30848-10-git-send-email-jolsa@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/util/dso.c | 59 +++++++++++++++++++++++++++++++++++++++++++++++++++
 tools/perf/util/dso.h | 38 +++++++++++++++++++++++++++++++++
 2 files changed, 97 insertions(+)

diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index c30752c..819f104 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -205,6 +205,13 @@ static int __open_dso(struct dso *dso, struct machine *machine)
 
 static void check_data_close(void);
 
+/**
+ * dso_close - Open DSO data file
+ * @dso: dso object
+ *
+ * Open @dso's data file descriptor and updates
+ * list/count of open DSO objects.
+ */
 static int open_dso(struct dso *dso, struct machine *machine)
 {
 	int fd = __open_dso(dso, machine);
@@ -231,6 +238,13 @@ static void close_data_fd(struct dso *dso)
 	}
 }
 
+/**
+ * dso_close - Close DSO data file
+ * @dso: dso object
+ *
+ * Close @dso's data file descriptor and updates
+ * list/count of open DSO objects.
+ */
 static void close_dso(struct dso *dso)
 {
 	close_data_fd(dso);
@@ -276,6 +290,11 @@ static bool may_cache_fd(void)
 	return limit > (rlim_t) dso__data_open_cnt;
 }
 
+/*
+ * Check and close LRU dso if we crossed allowed limit
+ * for opened dso file descriptors. The limit is half
+ * of the RLIMIT_NOFILE files opened.
+*/
 static void check_data_close(void)
 {
 	bool cache_fd = may_cache_fd();
@@ -284,11 +303,25 @@ static void check_data_close(void)
 		close_first_dso();
 }
 
+/**
+ * dso__data_close - Close DSO data file
+ * @dso: dso object
+ *
+ * External interface to close @dso's data file descriptor.
+ */
 void dso__data_close(struct dso *dso)
 {
 	close_dso(dso);
 }
 
+/**
+ * dso__data_fd - Get dso's data file descriptor
+ * @dso: dso object
+ * @machine: machine object
+ *
+ * External interface to find dso's file, open it and
+ * returns file descriptor.
+ */
 int dso__data_fd(struct dso *dso, struct machine *machine)
 {
 	enum dso_binary_type binary_type_data[] = {
@@ -445,6 +478,11 @@ static ssize_t dso_cache_read(struct dso *dso, u64 offset,
 		return dso_cache__read(dso, offset, data, size);
 }
 
+/*
+ * Reads and caches dso data DSO__DATA_CACHE_SIZE size chunks
+ * in the rb_tree. Any read to already cached data is served
+ * by cached data.
+ */
 static ssize_t cached_read(struct dso *dso, u64 offset, u8 *data, ssize_t size)
 {
 	ssize_t r = 0;
@@ -504,6 +542,17 @@ static ssize_t data_read_offset(struct dso *dso, u64 offset,
 	return cached_read(dso, offset, data, size);
 }
 
+/**
+ * dso__data_read_offset - Read data from dso file offset
+ * @dso: dso object
+ * @machine: machine object
+ * @offset: file offset
+ * @data: buffer to store data
+ * @size: size of the @data buffer
+ *
+ * External interface to read data from dso file offset. Open
+ * dso data file and use cached_read to get the data.
+ */
 ssize_t dso__data_read_offset(struct dso *dso, struct machine *machine,
 			      u64 offset, u8 *data, ssize_t size)
 {
@@ -513,6 +562,16 @@ ssize_t dso__data_read_offset(struct dso *dso, struct machine *machine,
 	return data_read_offset(dso, offset, data, size);
 }
 
+/**
+ * dso__data_read_addr - Read data from dso address
+ * @dso: dso object
+ * @machine: machine object
+ * @add: virtual memory address
+ * @data: buffer to store data
+ * @size: size of the @data buffer
+ *
+ * External interface to read data from dso address.
+ */
 ssize_t dso__data_read_addr(struct dso *dso, struct map *map,
 			    struct machine *machine, u64 addr,
 			    u8 *data, ssize_t size)
diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
index da47b13..ad553ba 100644
--- a/tools/perf/util/dso.h
+++ b/tools/perf/util/dso.h
@@ -149,6 +149,44 @@ char dso__symtab_origin(const struct dso *dso);
 int dso__read_binary_type_filename(const struct dso *dso, enum dso_binary_type type,
 				   char *root_dir, char *filename, size_t size);
 
+/*
+ * The dso__data_* external interface provides following functions:
+ *   dso__data_fd
+ *   dso__data_close
+ *   dso__data_read_offset
+ *   dso__data_read_addr
+ *
+ * Please refer to the dso.c object code for each function and
+ * arguments documentation. Following text tries to explain the
+ * dso file descriptor caching.
+ *
+ * The dso__data* interface allows caching of opened file descriptors
+ * to speed up the dso data accesses. The idea is to leave the file
+ * descriptor opened ideally for the whole life of the dso object.
+ *
+ * The current usage of the dso__data_* interface is as follows:
+ *
+ * Get DSO's fd:
+ *   int fd = dso__data_fd(dso, machine);
+ *   USE 'fd' SOMEHOW
+ *
+ * Read DSO's data:
+ *   n = dso__data_read_offset(dso_0, &machine, 0, buf, BUFSIZE);
+ *   n = dso__data_read_addr(dso_0, &machine, 0, buf, BUFSIZE);
+ *
+ * Eventually close DSO's fd:
+ *   dso__data_close(dso);
+ *
+ * It is not necessary to close the DSO object data file. Each time new
+ * DSO data file is opened, the limit (RLIMIT_NOFILE/2) is checked. Once
+ * it is crossed, the oldest opened DSO object is closed.
+ *
+ * The dso__delete function calls close_dso function to ensure the
+ * data file descriptor gets closed/unmapped before the dso object
+ * is freed.
+ *
+ * TODO
+*/
 int dso__data_fd(struct dso *dso, struct machine *machine);
 void dso__data_close(struct dso *dso);
 
-- 
1.8.3.1

[PATCH 11/14] perf tests: Spawn child for each test

[Jiri Olsa]

In upcoming tests we will setup process limits, which
might affect other tests. Spawning child for each test
to prevent this.

Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Reviewed-by: David Ahern <dsahern@gmail.com>
Link: http://lkml.kernel.org/r/1401892622-30848-11-git-send-email-jolsa@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/tests/builtin-test.c | 32 +++++++++++++++++++++++++++++++-
 1 file changed, 31 insertions(+), 1 deletion(-)

diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 802e3cd..9677a5c 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -3,6 +3,8 @@
  *
  * Builtin regression testing command: ever growing number of sanity tests
  */
+#include <unistd.h>
+#include <string.h>
 #include "builtin.h"
 #include "intlist.h"
 #include "tests.h"
@@ -172,6 +174,34 @@ static bool perf_test__matches(int curr, int argc, const char *argv[])
 	return false;
 }
 
+static int run_test(struct test *test)
+{
+	int status, err = -1, child = fork();
+
+	if (child < 0) {
+		pr_err("failed to fork test: %s\n", strerror(errno));
+		return -1;
+	}
+
+	if (!child) {
+		pr_debug("test child forked, pid %d\n", getpid());
+		err = test->func();
+		exit(err);
+	}
+
+	wait(&status);
+
+	if (WIFEXITED(status)) {
+		err = WEXITSTATUS(status);
+		pr_debug("test child finished with %d\n", err);
+	} else if (WIFSIGNALED(status)) {
+		err = -1;
+		pr_debug("test child interrupted\n");
+	}
+
+	return err;
+}
+
 static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
 {
 	int i = 0;
@@ -200,7 +230,7 @@ static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
 		}
 
 		pr_debug("\n--- start ---\n");
-		err = tests[curr].func();
+		err = run_test(&tests[curr]);
 		pr_debug("---- end ----\n%s:", tests[curr].desc);
 
 		switch (err) {
-- 
1.8.3.1

[PATCH 12/14] perf tests: Allow reuse of test_file function

[Jiri Olsa]

Making the test_file function to be reusable for
new tests coming in following patches.

Also changing the template name of temp files to
"/tmp/perf-test-XXXXXX" to easily identify & blame.

Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1401892622-30848-12-git-send-email-jolsa@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/tests/dso-data.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/perf/tests/dso-data.c b/tools/perf/tests/dso-data.c
index 3e6cb17..7384381 100644
--- a/tools/perf/tests/dso-data.c
+++ b/tools/perf/tests/dso-data.c
@@ -12,11 +12,15 @@
 
 static char *test_file(int size)
 {
-	static char buf_templ[] = "/tmp/test-XXXXXX";
+#define TEMPL "/tmp/perf-test-XXXXXX"
+	static char buf_templ[sizeof(TEMPL)];
 	char *templ = buf_templ;
 	int fd, i;
 	unsigned char *buf;
 
+	strcpy(buf_templ, TEMPL);
+#undef TEMPL
+
 	fd = mkstemp(templ);
 	if (fd < 0) {
 		perror("mkstemp failed");
-- 
1.8.3.1

[PATCH 13/14] perf tests: Add test for caching dso file descriptors

[Jiri Olsa]

Adding test that setup test_dso_data__fd_limit and test
dso data file descriptors are cached appropriately.

Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1401892622-30848-13-git-send-email-jolsa@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/tests/builtin-test.c |   6 +-
 tools/perf/tests/dso-data.c     | 135 +++++++++++++++++++++++++++++++++++++++-
 tools/perf/tests/tests.h        |   1 +
 3 files changed, 138 insertions(+), 4 deletions(-)

diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 9677a5c..b8a6358 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -52,10 +52,14 @@ static struct test {
 		.func = test__pmu,
 	},
 	{
-		.desc = "Test dso data interface",
+		.desc = "Test dso data read",
 		.func = test__dso_data,
 	},
 	{
+		.desc = "Test dso data cache",
+		.func = test__dso_data_cache,
+	},
+	{
 		.desc = "roundtrip evsel->name check",
 		.func = test__perf_evsel__roundtrip_name_test,
 	},
diff --git a/tools/perf/tests/dso-data.c b/tools/perf/tests/dso-data.c
index 7384381..2d30014 100644
--- a/tools/perf/tests/dso-data.c
+++ b/tools/perf/tests/dso-data.c
@@ -1,11 +1,12 @@
-#include "util.h"
-
 #include <stdlib.h>
 #include <linux/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <string.h>
-
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <api/fs/fs.h>
+#include "util.h"
 #include "machine.h"
 #include "symbol.h"
 #include "tests.h"
@@ -154,3 +155,131 @@ int test__dso_data(void)
 	unlink(file);
 	return 0;
 }
+
+static long open_files_cnt(void)
+{
+	char path[PATH_MAX];
+	struct dirent *dent;
+	DIR *dir;
+	long nr = 0;
+
+	scnprintf(path, PATH_MAX, "%s/self/fd", procfs__mountpoint());
+	pr_debug("fd path: %s\n", path);
+
+	dir = opendir(path);
+	TEST_ASSERT_VAL("failed to open fd directory", dir);
+
+	while ((dent = readdir(dir)) != NULL) {
+		if (!strcmp(dent->d_name, ".") ||
+		    !strcmp(dent->d_name, ".."))
+			continue;
+
+		nr++;
+	}
+
+	closedir(dir);
+	return nr - 1;
+}
+
+static struct dso **dsos;
+
+static int dsos__create(int cnt, int size)
+{
+	int i;
+
+	dsos = malloc(sizeof(dsos) * cnt);
+	TEST_ASSERT_VAL("failed to alloc dsos array", dsos);
+
+	for (i = 0; i < cnt; i++) {
+		char *file;
+
+		file = test_file(size);
+		TEST_ASSERT_VAL("failed to get dso file", file);
+
+		dsos[i] = dso__new(file);
+		TEST_ASSERT_VAL("failed to get dso", dsos[i]);
+	}
+
+	return 0;
+}
+
+static void dsos__delete(int cnt)
+{
+	int i;
+
+	for (i = 0; i < cnt; i++) {
+		struct dso *dso = dsos[i];
+
+		unlink(dso->name);
+		dso__delete(dso);
+	}
+
+	free(dsos);
+}
+
+static int set_fd_limit(int n)
+{
+	struct rlimit rlim;
+
+	if (getrlimit(RLIMIT_NOFILE, &rlim))
+		return -1;
+
+	pr_debug("file limit %ld, new %d\n", (long) rlim.rlim_cur, n);
+
+	rlim.rlim_cur = n;
+	return setrlimit(RLIMIT_NOFILE, &rlim);
+}
+
+int test__dso_data_cache(void)
+{
+	struct machine machine;
+	long nr_end, nr = open_files_cnt();
+	int dso_cnt, limit, i, fd;
+
+	memset(&machine, 0, sizeof(machine));
+
+	/* set as system limit */
+	limit = nr * 4;
+	TEST_ASSERT_VAL("failed to set file limit", !set_fd_limit(limit));
+
+	/* and this is now our dso open FDs limit + 1 extra */
+	dso_cnt = limit / 2 + 1;
+	TEST_ASSERT_VAL("failed to create dsos\n",
+		!dsos__create(dso_cnt, TEST_FILE_SIZE));
+
+	for (i = 0; i < (dso_cnt - 1); i++) {
+		struct dso *dso = dsos[i];
+
+		/*
+		 * Open dsos via dso__data_fd or dso__data_read_offset.
+		 * Both opens the data file and keep it open.
+		 */
+		if (i % 2) {
+			fd = dso__data_fd(dso, &machine);
+			TEST_ASSERT_VAL("failed to get fd", fd > 0);
+		} else {
+			#define BUFSIZE 10
+			u8 buf[BUFSIZE];
+			ssize_t n;
+
+			n = dso__data_read_offset(dso, &machine, 0, buf, BUFSIZE);
+			TEST_ASSERT_VAL("failed to read dso", n == BUFSIZE);
+		}
+	}
+
+	/* open +1 dso over the allowed limit */
+	fd = dso__data_fd(dsos[i], &machine);
+	TEST_ASSERT_VAL("failed to get fd", fd > 0);
+
+	/* should force the first one to be closed */
+	TEST_ASSERT_VAL("failed to close dsos[0]", dsos[0]->data.fd == -1);
+
+	/* cleanup everything */
+	dsos__delete(dso_cnt);
+
+	/* Make sure we did not leak any file descriptor. */
+	nr_end = open_files_cnt();
+	pr_debug("nr start %ld, nr stop %ld\n", nr, nr_end);
+	TEST_ASSERT_VAL("failed leadking files", nr == nr_end);
+	return 0;
+}
diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h
index 022bb68..ccc4deb 100644
--- a/tools/perf/tests/tests.h
+++ b/tools/perf/tests/tests.h
@@ -28,6 +28,7 @@ int test__syscall_open_tp_fields(void);
 int test__pmu(void);
 int test__attr(void);
 int test__dso_data(void);
+int test__dso_data_cache(void);
 int test__parse_events(void);
 int test__hists_link(void);
 int test__python_use(void);
-- 
1.8.3.1

[PATCH 14/14] perf tests: Add test for closing dso objects on EMFILE error

[Jiri Olsa]

Testing that perf properly closes opened dso objects
and tries to reopen in case we run out of allowed file
descriptors for dso data.

Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Reviewed by: David Ahern <dsahern@gmail.com>
Link: http://lkml.kernel.org/r/1401892622-30848-14-git-send-email-jolsa@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/tests/builtin-test.c |  4 +++
 tools/perf/tests/dso-data.c     | 73 +++++++++++++++++++++++++++++++++++++++++
 tools/perf/tests/tests.h        |  1 +
 3 files changed, 78 insertions(+)

diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index b8a6358..6f8b01b 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -60,6 +60,10 @@ static struct test {
 		.func = test__dso_data_cache,
 	},
 	{
+		.desc = "Test dso data reopen",
+		.func = test__dso_data_reopen,
+	},
+	{
 		.desc = "roundtrip evsel->name check",
 		.func = test__perf_evsel__roundtrip_name_test,
 	},
diff --git a/tools/perf/tests/dso-data.c b/tools/perf/tests/dso-data.c
index 2d30014..630808c 100644
--- a/tools/perf/tests/dso-data.c
+++ b/tools/perf/tests/dso-data.c
@@ -283,3 +283,76 @@ int test__dso_data_cache(void)
 	TEST_ASSERT_VAL("failed leadking files", nr == nr_end);
 	return 0;
 }
+
+int test__dso_data_reopen(void)
+{
+	struct machine machine;
+	long nr_end, nr = open_files_cnt();
+	int fd, fd_extra;
+
+#define dso_0 (dsos[0])
+#define dso_1 (dsos[1])
+#define dso_2 (dsos[2])
+
+	memset(&machine, 0, sizeof(machine));
+
+	/*
+	 * Test scenario:
+	 * - create 3 dso objects
+	 * - set process file descriptor limit to current
+	 *   files count + 3
+	 * - test that the first dso gets closed when we
+	 *   reach the files count limit
+	 */
+
+	/* Make sure we are able to open 3 fds anyway */
+	TEST_ASSERT_VAL("failed to set file limit",
+			!set_fd_limit((nr + 3)));
+
+	TEST_ASSERT_VAL("failed to create dsos\n", !dsos__create(3, TEST_FILE_SIZE));
+
+	/* open dso_0 */
+	fd = dso__data_fd(dso_0, &machine);
+	TEST_ASSERT_VAL("failed to get fd", fd > 0);
+
+	/* open dso_1 */
+	fd = dso__data_fd(dso_1, &machine);
+	TEST_ASSERT_VAL("failed to get fd", fd > 0);
+
+	/*
+	 * open extra file descriptor and we just
+	 * reached the files count limit
+	 */
+	fd_extra = open("/dev/null", O_RDONLY);
+	TEST_ASSERT_VAL("failed to open extra fd", fd_extra > 0);
+
+	/* open dso_2 */
+	fd = dso__data_fd(dso_2, &machine);
+	TEST_ASSERT_VAL("failed to get fd", fd > 0);
+
+	/*
+	 * dso_0 should get closed, because we reached
+	 * the file descriptor limit
+	 */
+	TEST_ASSERT_VAL("failed to close dso_0", dso_0->data.fd == -1);
+
+	/* open dso_0 */
+	fd = dso__data_fd(dso_0, &machine);
+	TEST_ASSERT_VAL("failed to get fd", fd > 0);
+
+	/*
+	 * dso_1 should get closed, because we reached
+	 * the file descriptor limit
+	 */
+	TEST_ASSERT_VAL("failed to close dso_1", dso_1->data.fd == -1);
+
+	/* cleanup everything */
+	close(fd_extra);
+	dsos__delete(3);
+
+	/* Make sure we did not leak any file descriptor. */
+	nr_end = open_files_cnt();
+	pr_debug("nr start %ld, nr stop %ld\n", nr, nr_end);
+	TEST_ASSERT_VAL("failed leadking files", nr == nr_end);
+	return 0;
+}
diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h
index ccc4deb..ed64790 100644
--- a/tools/perf/tests/tests.h
+++ b/tools/perf/tests/tests.h
@@ -29,6 +29,7 @@ int test__pmu(void);
 int test__attr(void);
 int test__dso_data(void);
 int test__dso_data_cache(void);
+int test__dso_data_reopen(void);
 int test__parse_events(void);
 int test__hists_link(void);
 int test__python_use(void);
-- 
1.8.3.1

Re: [GIT PULL 00/14] perf/core improvements and fixes

[Jean Pihet]

Hi Jiri,


On 12 June 2014 17:30, Jiri Olsa <jolsa@kernel.org> wrote:
> hi Ingo,
> please consider pulling
>
> thanks,
> jirka
>
> The following changes since commit 7184062b94b4bfac08715fb786fd2df399c5d6ee:
>
>   Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2014-06-12 13:54:42 +0200)
>
> are available in the git repository at:
>
>
>   git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git tags/perf-core-for-mingo
>
> for you to fetch changes up to 45dc1bb5c1d47f9519e2101f6b073bb4bb1d1f99:
>
>   perf tests: Add test for closing dso objects on EMFILE error (2014-06-12 16:53:23 +0200)
>
> ----------------------------------------------------------------
> perf/core improvements and fixes:
>
> . Honor user freq/interval properly in record command (Namhyung Kim)
>
> . Speedup DWARF unwind (Jiri Olsa)
Here are the results of the performance assessment on ARMv7, FWIW:

The results for unwind_speedup (v4) on ARMv7 are:
- libunwind: between -17% in execution time for light load (i.e. using
not-so-deep backtraces from the stress app.) and -25% for deep
backtrace (the stress_bt app.),
- libdw: no significant improvement (0-3% improvement).

The results for unwind_speedup (v3) on ARMv7 are:
- libunwind: between -29% in execution time for light load (i.e. using
not-so-deep backtraces from the stress app.) and -49% for deep
backtrace (the stress_bt app.),
- libdw: no significant improvement (0-2% improvement).

Note: v3 is faster than v4 by 13-25%, with and without the speed-up
patches. The real cause has been investigated, yet.

Cf. https://wiki.linaro.org/LEG/Engineering/TOOLS/perf-callstack-unwinding#Speed_improvement
for the details.

Regards,
Jean

>
> Signed-off-by: Jiri Olsa <jolsa@kernel.org>
>
> ----------------------------------------------------------------
> Jiri Olsa (13):
>       perf tools: Cache register accesses for unwind processing
>       perf tools: Separate dso data related variables
>       perf tools: Add data_fd into dso object
>       perf tools: Add global list of opened dso objects
>       perf tools: Add global count of opened dso objects
>       perf tools: Cache dso data file descriptor
>       perf tools: Add file size check and factor dso__data_read_offset
>       perf tools: Allow to close dso fd in case of open failure
>       perf tools: Add dso__data_* interface descriptons
>       perf tests: Spawn child for each test
>       perf tests: Allow reuse of test_file function
>       perf tests: Add test for caching dso file descriptors
>       perf tests: Add test for closing dso objects on EMFILE error
>
> Namhyung Kim (1):
>       perf record: Fix to honor user freq/interval properly
>
>  tools/perf/tests/builtin-test.c    |  42 +++++-
>  tools/perf/tests/dso-data.c        | 214 +++++++++++++++++++++++++++-
>  tools/perf/tests/tests.h           |   2 +
>  tools/perf/util/dso.c              | 279 +++++++++++++++++++++++++++++++++----
>  tools/perf/util/dso.h              |  50 ++++++-
>  tools/perf/util/event.h            |   5 +
>  tools/perf/util/evsel.c            |   4 +-
>  tools/perf/util/perf_regs.c        |  10 +-
>  tools/perf/util/perf_regs.h        |   4 +-
>  tools/perf/util/unwind-libunwind.c |   2 -
>  10 files changed, 574 insertions(+), 38 deletions(-)

Re: [GIT PULL 00/14] perf/core improvements and fixes

[Ingo Molnar]

* Jiri Olsa <jolsa@kernel.org> wrote:

> hi Ingo,
> please consider pulling
> 
> thanks,
> jirka
> 
> The following changes since commit 7184062b94b4bfac08715fb786fd2df399c5d6ee:
> 
>   Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2014-06-12 13:54:42 +0200)
> 
> are available in the git repository at:
> 
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git tags/perf-core-for-mingo
> 
> for you to fetch changes up to 45dc1bb5c1d47f9519e2101f6b073bb4bb1d1f99:
> 
>   perf tests: Add test for closing dso objects on EMFILE error (2014-06-12 16:53:23 +0200)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> . Honor user freq/interval properly in record command (Namhyung Kim)
> 
> . Speedup DWARF unwind (Jiri Olsa)
> 
> Signed-off-by: Jiri Olsa <jolsa@kernel.org>
> 
> ----------------------------------------------------------------
> Jiri Olsa (13):
>       perf tools: Cache register accesses for unwind processing
>       perf tools: Separate dso data related variables
>       perf tools: Add data_fd into dso object
>       perf tools: Add global list of opened dso objects
>       perf tools: Add global count of opened dso objects
>       perf tools: Cache dso data file descriptor
>       perf tools: Add file size check and factor dso__data_read_offset
>       perf tools: Allow to close dso fd in case of open failure
>       perf tools: Add dso__data_* interface descriptons
>       perf tests: Spawn child for each test
>       perf tests: Allow reuse of test_file function
>       perf tests: Add test for caching dso file descriptors
>       perf tests: Add test for closing dso objects on EMFILE error
> 
> Namhyung Kim (1):
>       perf record: Fix to honor user freq/interval properly
> 
>  tools/perf/tests/builtin-test.c    |  42 +++++-
>  tools/perf/tests/dso-data.c        | 214 +++++++++++++++++++++++++++-
>  tools/perf/tests/tests.h           |   2 +
>  tools/perf/util/dso.c              | 279 +++++++++++++++++++++++++++++++++----
>  tools/perf/util/dso.h              |  50 ++++++-
>  tools/perf/util/event.h            |   5 +
>  tools/perf/util/evsel.c            |   4 +-
>  tools/perf/util/perf_regs.c        |  10 +-
>  tools/perf/util/perf_regs.h        |   4 +-
>  tools/perf/util/unwind-libunwind.c |   2 -
>  10 files changed, 574 insertions(+), 38 deletions(-)

Pulled, thanks a lot Jiri!

	Ingo

Re: [GIT PULL 00/14] perf/core improvements and fixes

[Jiri Olsa]

On Thu, Jun 12, 2014 at 10:55:55PM +0200, Jean Pihet wrote:
> Hi Jiri,
> 
> 
> On 12 June 2014 17:30, Jiri Olsa <jolsa@kernel.org> wrote:
> > hi Ingo,
> > please consider pulling
> >
> > thanks,
> > jirka
> >
> > The following changes since commit 7184062b94b4bfac08715fb786fd2df399c5d6ee:
> >
> >   Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2014-06-12 13:54:42 +0200)
> >
> > are available in the git repository at:
> >
> >
> >   git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git tags/perf-core-for-mingo
> >
> > for you to fetch changes up to 45dc1bb5c1d47f9519e2101f6b073bb4bb1d1f99:
> >
> >   perf tests: Add test for closing dso objects on EMFILE error (2014-06-12 16:53:23 +0200)
> >
> > ----------------------------------------------------------------
> > perf/core improvements and fixes:
> >
> > . Honor user freq/interval properly in record command (Namhyung Kim)
> >
> > . Speedup DWARF unwind (Jiri Olsa)
> Here are the results of the performance assessment on ARMv7, FWIW:
> 
> The results for unwind_speedup (v4) on ARMv7 are:
> - libunwind: between -17% in execution time for light load (i.e. using
> not-so-deep backtraces from the stress app.) and -25% for deep
> backtrace (the stress_bt app.),
> - libdw: no significant improvement (0-3% improvement).
> 
> The results for unwind_speedup (v3) on ARMv7 are:
> - libunwind: between -29% in execution time for light load (i.e. using
> not-so-deep backtraces from the stress app.) and -49% for deep
> backtrace (the stress_bt app.),
> - libdw: no significant improvement (0-2% improvement).
> 
> Note: v3 is faster than v4 by 13-25%, with and without the speed-up
> patches. The real cause has been investigated, yet.

hi,
yep, I also found the v4 to be slower, because of the
caching code in each open.. I believe the first version
you meassured was the original, that kept all dso objects
open.. now the caching code spends more cycles

also we are not mmapping dso so far.. there's the cached
read in place

please let me know if you think it's something else

thanks for testing,
jirka

Re: [GIT PULL 00/14] perf/core improvements and fixes

[Ingo Molnar]

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

> Hi Ingo,
> 
> 	Please consider pulling, this has those 31 patches that were
> blocked due to some problems (author not being the fist S-o-B, build
> broken on ppc), those issues should all be fixed and then we have 14
> patches more, described in the signed tag.
> 
> Regards,
> 
> - Arnaldo
> 
> Test results at the end of this message, as usual.
> 
> The following changes since commit 10f354a36f9a9aa1b8bffe0abc1cd43822a85bcd:
> 
>   perf test: Fix exit code for record+probe_libc_inet_pton.sh (2018-03-16 13:56:31 -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-4.17-20180319
> 
> for you to fetch changes up to 1cd618838b9703eabe4a75badf433382b12f6bef:
> 
>   perf tests bp_account: Fix build with clang-6 (2018-03-19 13:51:54 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> - Fixes for problems experienced with new gcc 8 warnings, that treated
>   as errors, broke the build, related to snprintf and casting issues.
>   (Arnaldo Carvalho de Melo, Jiri Olsa, Josh Poinboeuf)
> 
> - Fix build of new breakpoint 'perf test' entry with clang < 6, noticed
>   on fedora 25, 26 and 27 (Arnaldo Carvalho de Melo)
> 
> - Workaround problem with symbol resolution in 'perf annotate', using
>   the symbol name already present in the objdump output (Arnaldo Carvalho de Melo)
> 
> - Document 'perf top --ignore-vmlinux' (Arnaldo Carvalho de Melo)
> 
> - Fix out of bounds access on array fd when cnt is 100 in one of the
>   'perf test' entries, detected using 'cpptest' (Colin Ian King)
> 
> - Add support for the forced leader feature, i.e. 'perf report --group'
>   for a group of events not really grouped when scheduled (without using
>   {} to enclose the list of events in the command line) in pipe mode,
>   e.g.:
> 
>   $ perf record -e cycles,instructions -o - kill | perf report --group -i -
> 
> - Use right type to access array elements in 'perf probe' (Masami Hiramatsu)
> 
> - Update POWER9 vendor events (those described in JSON format) (Sukadev Bhattiprolu)
> 
> - Discard head in overwrite_rb_find_range() (Yisheng Xie)
> 
> - Avoid setting 'quiet' to 'true' unnecessarily (Yisheng Xie)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (4):
>       perf annotate: Use asprintf when formatting objdump command line
>       perf top: Document --ignore-vmlinux
>       perf annotate: Use ops->target.name when available for unresolved call targets
>       perf tests bp_account: Fix build with clang-6
> 
> Colin Ian King (1):
>       perf tests: Fix out of bounds access on array fd when cnt is 100
> 
> Jiri Olsa (4):
>       perf record: Synthesize features before events in pipe mode
>       perf report: Support forced leader feature in pipe mode
>       perf tools: Fix snprint warnings for gcc 8
>       perf tools: Fix python extension build for gcc 8
> 
> Josh Poimboeuf (1):
>       objtool, perf: Fix GCC 8 -Wrestrict error
> 
> Masami Hiramatsu (1):
>       perf probe: Use right type to access array elements
> 
> Sukadev Bhattiprolu (1):
>       perf vendor events: Update POWER9 events
> 
> Yisheng Xie (2):
>       perf mmap: Discard head in overwrite_rb_find_range()
>       perf debug: Avoid setting 'quiet' to 'true' unnecessarily
> 
>  tools/lib/str_error_r.c                            |   2 +-
>  tools/perf/Documentation/perf-top.txt              |   3 +
>  tools/perf/builtin-record.c                        |  18 +-
>  tools/perf/builtin-report.c                        |  57 +++--
>  tools/perf/builtin-script.c                        |  22 +-
>  .../perf/pmu-events/arch/powerpc/power9/cache.json |  25 ---
>  .../pmu-events/arch/powerpc/power9/frontend.json   |  10 -
>  .../pmu-events/arch/powerpc/power9/marked.json     |   5 -
>  .../pmu-events/arch/powerpc/power9/memory.json     |   5 -
>  .../perf/pmu-events/arch/powerpc/power9/other.json | 241 ++++++++++++++-------
>  .../pmu-events/arch/powerpc/power9/pipeline.json   |  50 ++---
>  tools/perf/pmu-events/arch/powerpc/power9/pmc.json |   5 -
>  .../arch/powerpc/power9/translation.json           |  10 +-
>  tools/perf/tests/attr.c                            |   4 +-
>  tools/perf/tests/bp_account.c                      |  10 +-
>  tools/perf/tests/mem.c                             |   2 +-
>  tools/perf/tests/pmu.c                             |   2 +-
>  tools/perf/util/annotate.c                         |  20 +-
>  tools/perf/util/cgroup.c                           |   2 +-
>  tools/perf/util/debug.c                            |   1 -
>  tools/perf/util/header.c                           |  11 +-
>  tools/perf/util/mmap.c                             |  15 +-
>  tools/perf/util/parse-events.c                     |   4 +-
>  tools/perf/util/pmu.c                              |   2 +-
>  tools/perf/util/probe-finder.c                     |  13 +-
>  tools/perf/util/setup.py                           |   2 +
>  26 files changed, 298 insertions(+), 243 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

Re: [GIT PULL 00/14] perf/core improvements and fixes

[Ingo Molnar]

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

> Hi Ingo,
> 
> 	Please consider pulling, this has those 31 patches that were
> blocked due to some problems (author not being the fist S-o-B, build
> broken on ppc), those issues should all be fixed and then we have 14
> patches more, described in the signed tag.
> 
> Regards,
> 
> - Arnaldo
> 
> Test results at the end of this message, as usual.
> 
> The following changes since commit 10f354a36f9a9aa1b8bffe0abc1cd43822a85bcd:
> 
>   perf test: Fix exit code for record+probe_libc_inet_pton.sh (2018-03-16 13:56:31 -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-4.17-20180319
> 
> for you to fetch changes up to 1cd618838b9703eabe4a75badf433382b12f6bef:
> 
>   perf tests bp_account: Fix build with clang-6 (2018-03-19 13:51:54 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> - Fixes for problems experienced with new gcc 8 warnings, that treated
>   as errors, broke the build, related to snprintf and casting issues.
>   (Arnaldo Carvalho de Melo, Jiri Olsa, Josh Poinboeuf)
> 
> - Fix build of new breakpoint 'perf test' entry with clang < 6, noticed
>   on fedora 25, 26 and 27 (Arnaldo Carvalho de Melo)
> 
> - Workaround problem with symbol resolution in 'perf annotate', using
>   the symbol name already present in the objdump output (Arnaldo Carvalho de Melo)
> 
> - Document 'perf top --ignore-vmlinux' (Arnaldo Carvalho de Melo)
> 
> - Fix out of bounds access on array fd when cnt is 100 in one of the
>   'perf test' entries, detected using 'cpptest' (Colin Ian King)
> 
> - Add support for the forced leader feature, i.e. 'perf report --group'
>   for a group of events not really grouped when scheduled (without using
>   {} to enclose the list of events in the command line) in pipe mode,
>   e.g.:
> 
>   $ perf record -e cycles,instructions -o - kill | perf report --group -i -
> 
> - Use right type to access array elements in 'perf probe' (Masami Hiramatsu)
> 
> - Update POWER9 vendor events (those described in JSON format) (Sukadev Bhattiprolu)
> 
> - Discard head in overwrite_rb_find_range() (Yisheng Xie)
> 
> - Avoid setting 'quiet' to 'true' unnecessarily (Yisheng Xie)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (4):
>       perf annotate: Use asprintf when formatting objdump command line
>       perf top: Document --ignore-vmlinux
>       perf annotate: Use ops->target.name when available for unresolved call targets
>       perf tests bp_account: Fix build with clang-6
> 
> Colin Ian King (1):
>       perf tests: Fix out of bounds access on array fd when cnt is 100
> 
> Jiri Olsa (4):
>       perf record: Synthesize features before events in pipe mode
>       perf report: Support forced leader feature in pipe mode
>       perf tools: Fix snprint warnings for gcc 8
>       perf tools: Fix python extension build for gcc 8
> 
> Josh Poimboeuf (1):
>       objtool, perf: Fix GCC 8 -Wrestrict error
> 
> Masami Hiramatsu (1):
>       perf probe: Use right type to access array elements
> 
> Sukadev Bhattiprolu (1):
>       perf vendor events: Update POWER9 events
> 
> Yisheng Xie (2):
>       perf mmap: Discard head in overwrite_rb_find_range()
>       perf debug: Avoid setting 'quiet' to 'true' unnecessarily
> 
>  tools/lib/str_error_r.c                            |   2 +-
>  tools/perf/Documentation/perf-top.txt              |   3 +
>  tools/perf/builtin-record.c                        |  18 +-
>  tools/perf/builtin-report.c                        |  57 +++--
>  tools/perf/builtin-script.c                        |  22 +-
>  .../perf/pmu-events/arch/powerpc/power9/cache.json |  25 ---
>  .../pmu-events/arch/powerpc/power9/frontend.json   |  10 -
>  .../pmu-events/arch/powerpc/power9/marked.json     |   5 -
>  .../pmu-events/arch/powerpc/power9/memory.json     |   5 -
>  .../perf/pmu-events/arch/powerpc/power9/other.json | 241 ++++++++++++++-------
>  .../pmu-events/arch/powerpc/power9/pipeline.json   |  50 ++---
>  tools/perf/pmu-events/arch/powerpc/power9/pmc.json |   5 -
>  .../arch/powerpc/power9/translation.json           |  10 +-
>  tools/perf/tests/attr.c                            |   4 +-
>  tools/perf/tests/bp_account.c                      |  10 +-
>  tools/perf/tests/mem.c                             |   2 +-
>  tools/perf/tests/pmu.c                             |   2 +-
>  tools/perf/util/annotate.c                         |  20 +-
>  tools/perf/util/cgroup.c                           |   2 +-
>  tools/perf/util/debug.c                            |   1 -
>  tools/perf/util/header.c                           |  11 +-
>  tools/perf/util/mmap.c                             |  15 +-
>  tools/perf/util/parse-events.c                     |   4 +-
>  tools/perf/util/pmu.c                              |   2 +-
>  tools/perf/util/probe-finder.c                     |  13 +-
>  tools/perf/util/setup.py                           |   2 +
>  26 files changed, 298 insertions(+), 243 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/14] perf/core improvements and fixes

[mingo]

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

> Hi Ingo,
> 
> 	Please consider pulling, this has those 31 patches that were
> blocked due to some problems (author not being the fist S-o-B, build
> broken on ppc), those issues should all be fixed and then we have 14
> patches more, described in the signed tag.
> 
> Regards,
> 
> - Arnaldo
> 
> Test results at the end of this message, as usual.
> 
> The following changes since commit 10f354a36f9a9aa1b8bffe0abc1cd43822a85bcd:
> 
>   perf test: Fix exit code for record+probe_libc_inet_pton.sh (2018-03-16 13:56:31 -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-4.17-20180319
> 
> for you to fetch changes up to 1cd618838b9703eabe4a75badf433382b12f6bef:
> 
>   perf tests bp_account: Fix build with clang-6 (2018-03-19 13:51:54 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> - Fixes for problems experienced with new gcc 8 warnings, that treated
>   as errors, broke the build, related to snprintf and casting issues.
>   (Arnaldo Carvalho de Melo, Jiri Olsa, Josh Poinboeuf)
> 
> - Fix build of new breakpoint 'perf test' entry with clang < 6, noticed
>   on fedora 25, 26 and 27 (Arnaldo Carvalho de Melo)
> 
> - Workaround problem with symbol resolution in 'perf annotate', using
>   the symbol name already present in the objdump output (Arnaldo Carvalho de Melo)
> 
> - Document 'perf top --ignore-vmlinux' (Arnaldo Carvalho de Melo)
> 
> - Fix out of bounds access on array fd when cnt is 100 in one of the
>   'perf test' entries, detected using 'cpptest' (Colin Ian King)
> 
> - Add support for the forced leader feature, i.e. 'perf report --group'
>   for a group of events not really grouped when scheduled (without using
>   {} to enclose the list of events in the command line) in pipe mode,
>   e.g.:
> 
>   $ perf record -e cycles,instructions -o - kill | perf report --group -i -
> 
> - Use right type to access array elements in 'perf probe' (Masami Hiramatsu)
> 
> - Update POWER9 vendor events (those described in JSON format) (Sukadev Bhattiprolu)
> 
> - Discard head in overwrite_rb_find_range() (Yisheng Xie)
> 
> - Avoid setting 'quiet' to 'true' unnecessarily (Yisheng Xie)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme at redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (4):
>       perf annotate: Use asprintf when formatting objdump command line
>       perf top: Document --ignore-vmlinux
>       perf annotate: Use ops->target.name when available for unresolved call targets
>       perf tests bp_account: Fix build with clang-6
> 
> Colin Ian King (1):
>       perf tests: Fix out of bounds access on array fd when cnt is 100
> 
> Jiri Olsa (4):
>       perf record: Synthesize features before events in pipe mode
>       perf report: Support forced leader feature in pipe mode
>       perf tools: Fix snprint warnings for gcc 8
>       perf tools: Fix python extension build for gcc 8
> 
> Josh Poimboeuf (1):
>       objtool, perf: Fix GCC 8 -Wrestrict error
> 
> Masami Hiramatsu (1):
>       perf probe: Use right type to access array elements
> 
> Sukadev Bhattiprolu (1):
>       perf vendor events: Update POWER9 events
> 
> Yisheng Xie (2):
>       perf mmap: Discard head in overwrite_rb_find_range()
>       perf debug: Avoid setting 'quiet' to 'true' unnecessarily
> 
>  tools/lib/str_error_r.c                            |   2 +-
>  tools/perf/Documentation/perf-top.txt              |   3 +
>  tools/perf/builtin-record.c                        |  18 +-
>  tools/perf/builtin-report.c                        |  57 +++--
>  tools/perf/builtin-script.c                        |  22 +-
>  .../perf/pmu-events/arch/powerpc/power9/cache.json |  25 ---
>  .../pmu-events/arch/powerpc/power9/frontend.json   |  10 -
>  .../pmu-events/arch/powerpc/power9/marked.json     |   5 -
>  .../pmu-events/arch/powerpc/power9/memory.json     |   5 -
>  .../perf/pmu-events/arch/powerpc/power9/other.json | 241 ++++++++++++++-------
>  .../pmu-events/arch/powerpc/power9/pipeline.json   |  50 ++---
>  tools/perf/pmu-events/arch/powerpc/power9/pmc.json |   5 -
>  .../arch/powerpc/power9/translation.json           |  10 +-
>  tools/perf/tests/attr.c                            |   4 +-
>  tools/perf/tests/bp_account.c                      |  10 +-
>  tools/perf/tests/mem.c                             |   2 +-
>  tools/perf/tests/pmu.c                             |   2 +-
>  tools/perf/util/annotate.c                         |  20 +-
>  tools/perf/util/cgroup.c                           |   2 +-
>  tools/perf/util/debug.c                            |   1 -
>  tools/perf/util/header.c                           |  11 +-
>  tools/perf/util/mmap.c                             |  15 +-
>  tools/perf/util/parse-events.c                     |   4 +-
>  tools/perf/util/pmu.c                              |   2 +-
>  tools/perf/util/probe-finder.c                     |  13 +-
>  tools/perf/util/setup.py                           |   2 +
>  26 files changed, 298 insertions(+), 243 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in
the body of a message to majordomo at vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[GIT PULL 00/14] perf/core improvements and fixes

[Ingo Molnar]

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

> Hi Ingo,
> 
> 	Please consider pulling, this has those 31 patches that were
> blocked due to some problems (author not being the fist S-o-B, build
> broken on ppc), those issues should all be fixed and then we have 14
> patches more, described in the signed tag.
> 
> Regards,
> 
> - Arnaldo
> 
> Test results at the end of this message, as usual.
> 
> The following changes since commit 10f354a36f9a9aa1b8bffe0abc1cd43822a85bcd:
> 
>   perf test: Fix exit code for record+probe_libc_inet_pton.sh (2018-03-16 13:56:31 -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-4.17-20180319
> 
> for you to fetch changes up to 1cd618838b9703eabe4a75badf433382b12f6bef:
> 
>   perf tests bp_account: Fix build with clang-6 (2018-03-19 13:51:54 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> - Fixes for problems experienced with new gcc 8 warnings, that treated
>   as errors, broke the build, related to snprintf and casting issues.
>   (Arnaldo Carvalho de Melo, Jiri Olsa, Josh Poinboeuf)
> 
> - Fix build of new breakpoint 'perf test' entry with clang < 6, noticed
>   on fedora 25, 26 and 27 (Arnaldo Carvalho de Melo)
> 
> - Workaround problem with symbol resolution in 'perf annotate', using
>   the symbol name already present in the objdump output (Arnaldo Carvalho de Melo)
> 
> - Document 'perf top --ignore-vmlinux' (Arnaldo Carvalho de Melo)
> 
> - Fix out of bounds access on array fd when cnt is 100 in one of the
>   'perf test' entries, detected using 'cpptest' (Colin Ian King)
> 
> - Add support for the forced leader feature, i.e. 'perf report --group'
>   for a group of events not really grouped when scheduled (without using
>   {} to enclose the list of events in the command line) in pipe mode,
>   e.g.:
> 
>   $ perf record -e cycles,instructions -o - kill | perf report --group -i -
> 
> - Use right type to access array elements in 'perf probe' (Masami Hiramatsu)
> 
> - Update POWER9 vendor events (those described in JSON format) (Sukadev Bhattiprolu)
> 
> - Discard head in overwrite_rb_find_range() (Yisheng Xie)
> 
> - Avoid setting 'quiet' to 'true' unnecessarily (Yisheng Xie)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme at redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (4):
>       perf annotate: Use asprintf when formatting objdump command line
>       perf top: Document --ignore-vmlinux
>       perf annotate: Use ops->target.name when available for unresolved call targets
>       perf tests bp_account: Fix build with clang-6
> 
> Colin Ian King (1):
>       perf tests: Fix out of bounds access on array fd when cnt is 100
> 
> Jiri Olsa (4):
>       perf record: Synthesize features before events in pipe mode
>       perf report: Support forced leader feature in pipe mode
>       perf tools: Fix snprint warnings for gcc 8
>       perf tools: Fix python extension build for gcc 8
> 
> Josh Poimboeuf (1):
>       objtool, perf: Fix GCC 8 -Wrestrict error
> 
> Masami Hiramatsu (1):
>       perf probe: Use right type to access array elements
> 
> Sukadev Bhattiprolu (1):
>       perf vendor events: Update POWER9 events
> 
> Yisheng Xie (2):
>       perf mmap: Discard head in overwrite_rb_find_range()
>       perf debug: Avoid setting 'quiet' to 'true' unnecessarily
> 
>  tools/lib/str_error_r.c                            |   2 +-
>  tools/perf/Documentation/perf-top.txt              |   3 +
>  tools/perf/builtin-record.c                        |  18 +-
>  tools/perf/builtin-report.c                        |  57 +++--
>  tools/perf/builtin-script.c                        |  22 +-
>  .../perf/pmu-events/arch/powerpc/power9/cache.json |  25 ---
>  .../pmu-events/arch/powerpc/power9/frontend.json   |  10 -
>  .../pmu-events/arch/powerpc/power9/marked.json     |   5 -
>  .../pmu-events/arch/powerpc/power9/memory.json     |   5 -
>  .../perf/pmu-events/arch/powerpc/power9/other.json | 241 ++++++++++++++-------
>  .../pmu-events/arch/powerpc/power9/pipeline.json   |  50 ++---
>  tools/perf/pmu-events/arch/powerpc/power9/pmc.json |   5 -
>  .../arch/powerpc/power9/translation.json           |  10 +-
>  tools/perf/tests/attr.c                            |   4 +-
>  tools/perf/tests/bp_account.c                      |  10 +-
>  tools/perf/tests/mem.c                             |   2 +-
>  tools/perf/tests/pmu.c                             |   2 +-
>  tools/perf/util/annotate.c                         |  20 +-
>  tools/perf/util/cgroup.c                           |   2 +-
>  tools/perf/util/debug.c                            |   1 -
>  tools/perf/util/header.c                           |  11 +-
>  tools/perf/util/mmap.c                             |  15 +-
>  tools/perf/util/parse-events.c                     |   4 +-
>  tools/perf/util/pmu.c                              |   2 +-
>  tools/perf/util/probe-finder.c                     |  13 +-
>  tools/perf/util/setup.py                           |   2 +
>  26 files changed, 298 insertions(+), 243 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in
the body of a message to majordomo at vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Re: [GIT PULL 00/14] perf/core improvements and fixes

[Ingo Molnar]

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

> Hi Ingo,
> 
> 	Please consider pulling, this has those 31 patches that were
> blocked due to some problems (author not being the fist S-o-B, build
> broken on ppc), those issues should all be fixed and then we have 14
> patches more, described in the signed tag.
> 
> Regards,
> 
> - Arnaldo
> 
> Test results at the end of this message, as usual.
> 
> The following changes since commit 10f354a36f9a9aa1b8bffe0abc1cd43822a85bcd:
> 
>   perf test: Fix exit code for record+probe_libc_inet_pton.sh (2018-03-16 13:56:31 -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-4.17-20180319
> 
> for you to fetch changes up to 1cd618838b9703eabe4a75badf433382b12f6bef:
> 
>   perf tests bp_account: Fix build with clang-6 (2018-03-19 13:51:54 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> - Fixes for problems experienced with new gcc 8 warnings, that treated
>   as errors, broke the build, related to snprintf and casting issues.
>   (Arnaldo Carvalho de Melo, Jiri Olsa, Josh Poinboeuf)
> 
> - Fix build of new breakpoint 'perf test' entry with clang < 6, noticed
>   on fedora 25, 26 and 27 (Arnaldo Carvalho de Melo)
> 
> - Workaround problem with symbol resolution in 'perf annotate', using
>   the symbol name already present in the objdump output (Arnaldo Carvalho de Melo)
> 
> - Document 'perf top --ignore-vmlinux' (Arnaldo Carvalho de Melo)
> 
> - Fix out of bounds access on array fd when cnt is 100 in one of the
>   'perf test' entries, detected using 'cpptest' (Colin Ian King)
> 
> - Add support for the forced leader feature, i.e. 'perf report --group'
>   for a group of events not really grouped when scheduled (without using
>   {} to enclose the list of events in the command line) in pipe mode,
>   e.g.:
> 
>   $ perf record -e cycles,instructions -o - kill | perf report --group -i -
> 
> - Use right type to access array elements in 'perf probe' (Masami Hiramatsu)
> 
> - Update POWER9 vendor events (those described in JSON format) (Sukadev Bhattiprolu)
> 
> - Discard head in overwrite_rb_find_range() (Yisheng Xie)
> 
> - Avoid setting 'quiet' to 'true' unnecessarily (Yisheng Xie)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (4):
>       perf annotate: Use asprintf when formatting objdump command line
>       perf top: Document --ignore-vmlinux
>       perf annotate: Use ops->target.name when available for unresolved call targets
>       perf tests bp_account: Fix build with clang-6
> 
> Colin Ian King (1):
>       perf tests: Fix out of bounds access on array fd when cnt is 100
> 
> Jiri Olsa (4):
>       perf record: Synthesize features before events in pipe mode
>       perf report: Support forced leader feature in pipe mode
>       perf tools: Fix snprint warnings for gcc 8
>       perf tools: Fix python extension build for gcc 8
> 
> Josh Poimboeuf (1):
>       objtool, perf: Fix GCC 8 -Wrestrict error
> 
> Masami Hiramatsu (1):
>       perf probe: Use right type to access array elements
> 
> Sukadev Bhattiprolu (1):
>       perf vendor events: Update POWER9 events
> 
> Yisheng Xie (2):
>       perf mmap: Discard head in overwrite_rb_find_range()
>       perf debug: Avoid setting 'quiet' to 'true' unnecessarily
> 
>  tools/lib/str_error_r.c                            |   2 +-
>  tools/perf/Documentation/perf-top.txt              |   3 +
>  tools/perf/builtin-record.c                        |  18 +-
>  tools/perf/builtin-report.c                        |  57 +++--
>  tools/perf/builtin-script.c                        |  22 +-
>  .../perf/pmu-events/arch/powerpc/power9/cache.json |  25 ---
>  .../pmu-events/arch/powerpc/power9/frontend.json   |  10 -
>  .../pmu-events/arch/powerpc/power9/marked.json     |   5 -
>  .../pmu-events/arch/powerpc/power9/memory.json     |   5 -
>  .../perf/pmu-events/arch/powerpc/power9/other.json | 241 ++++++++++++++-------
>  .../pmu-events/arch/powerpc/power9/pipeline.json   |  50 ++---
>  tools/perf/pmu-events/arch/powerpc/power9/pmc.json |   5 -
>  .../arch/powerpc/power9/translation.json           |  10 +-
>  tools/perf/tests/attr.c                            |   4 +-
>  tools/perf/tests/bp_account.c                      |  10 +-
>  tools/perf/tests/mem.c                             |   2 +-
>  tools/perf/tests/pmu.c                             |   2 +-
>  tools/perf/util/annotate.c                         |  20 +-
>  tools/perf/util/cgroup.c                           |   2 +-
>  tools/perf/util/debug.c                            |   1 -
>  tools/perf/util/header.c                           |  11 +-
>  tools/perf/util/mmap.c                             |  15 +-
>  tools/perf/util/parse-events.c                     |   4 +-
>  tools/perf/util/pmu.c                              |   2 +-
>  tools/perf/util/probe-finder.c                     |  13 +-
>  tools/perf/util/setup.py                           |   2 +
>  26 files changed, 298 insertions(+), 243 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/14] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling, this has those 31 patches that were
blocked due to some problems (author not being the fist S-o-B, build
broken on ppc), those issues should all be fixed and then we have 14
patches more, described in the signed tag.

Regards,

- Arnaldo

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

The following changes since commit 10f354a36f9a9aa1b8bffe0abc1cd43822a85bcd:

  perf test: Fix exit code for record+probe_libc_inet_pton.sh (2018-03-16 13:56:31 -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-4.17-20180319

for you to fetch changes up to 1cd618838b9703eabe4a75badf433382b12f6bef:

  perf tests bp_account: Fix build with clang-6 (2018-03-19 13:51:54 -0300)

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

- Fixes for problems experienced with new gcc 8 warnings, that treated
  as errors, broke the build, related to snprintf and casting issues.
  (Arnaldo Carvalho de Melo, Jiri Olsa, Josh Poinboeuf)

- Fix build of new breakpoint 'perf test' entry with clang < 6, noticed
  on fedora 25, 26 and 27 (Arnaldo Carvalho de Melo)

- Workaround problem with symbol resolution in 'perf annotate', using
  the symbol name already present in the objdump output (Arnaldo Carvalho de Melo)

- Document 'perf top --ignore-vmlinux' (Arnaldo Carvalho de Melo)

- Fix out of bounds access on array fd when cnt is 100 in one of the
  'perf test' entries, detected using 'cpptest' (Colin Ian King)

- Add support for the forced leader feature, i.e. 'perf report --group'
  for a group of events not really grouped when scheduled (without using
  {} to enclose the list of events in the command line) in pipe mode,
  e.g.:

  $ perf record -e cycles,instructions -o - kill | perf report --group -i -

- Use right type to access array elements in 'perf probe' (Masami Hiramatsu)

- Update POWER9 vendor events (those described in JSON format) (Sukadev Bhattiprolu)

- Discard head in overwrite_rb_find_range() (Yisheng Xie)

- Avoid setting 'quiet' to 'true' unnecessarily (Yisheng Xie)

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

----------------------------------------------------------------
Arnaldo Carvalho de Melo (4):
      perf annotate: Use asprintf when formatting objdump command line
      perf top: Document --ignore-vmlinux
      perf annotate: Use ops->target.name when available for unresolved call targets
      perf tests bp_account: Fix build with clang-6

Colin Ian King (1):
      perf tests: Fix out of bounds access on array fd when cnt is 100

Jiri Olsa (4):
      perf record: Synthesize features before events in pipe mode
      perf report: Support forced leader feature in pipe mode
      perf tools: Fix snprint warnings for gcc 8
      perf tools: Fix python extension build for gcc 8

Josh Poimboeuf (1):
      objtool, perf: Fix GCC 8 -Wrestrict error

Masami Hiramatsu (1):
      perf probe: Use right type to access array elements

Sukadev Bhattiprolu (1):
      perf vendor events: Update POWER9 events

Yisheng Xie (2):
      perf mmap: Discard head in overwrite_rb_find_range()
      perf debug: Avoid setting 'quiet' to 'true' unnecessarily

 tools/lib/str_error_r.c                            |   2 +-
 tools/perf/Documentation/perf-top.txt              |   3 +
 tools/perf/builtin-record.c                        |  18 +-
 tools/perf/builtin-report.c                        |  57 +++--
 tools/perf/builtin-script.c                        |  22 +-
 .../perf/pmu-events/arch/powerpc/power9/cache.json |  25 ---
 .../pmu-events/arch/powerpc/power9/frontend.json   |  10 -
 .../pmu-events/arch/powerpc/power9/marked.json     |   5 -
 .../pmu-events/arch/powerpc/power9/memory.json     |   5 -
 .../perf/pmu-events/arch/powerpc/power9/other.json | 241 ++++++++++++++-------
 .../pmu-events/arch/powerpc/power9/pipeline.json   |  50 ++---
 tools/perf/pmu-events/arch/powerpc/power9/pmc.json |   5 -
 .../arch/powerpc/power9/translation.json           |  10 +-
 tools/perf/tests/attr.c                            |   4 +-
 tools/perf/tests/bp_account.c                      |  10 +-
 tools/perf/tests/mem.c                             |   2 +-
 tools/perf/tests/pmu.c                             |   2 +-
 tools/perf/util/annotate.c                         |  20 +-
 tools/perf/util/cgroup.c                           |   2 +-
 tools/perf/util/debug.c                            |   1 -
 tools/perf/util/header.c                           |  11 +-
 tools/perf/util/mmap.c                             |  15 +-
 tools/perf/util/parse-events.c                     |   4 +-
 tools/perf/util/pmu.c                              |   2 +-
 tools/perf/util/probe-finder.c                     |  13 +-
 tools/perf/util/setup.py                           |   2 +
 26 files changed, 298 insertions(+), 243 deletions(-)

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.

[root@jouet ~]# time 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:3.7                    : Ok   gcc (Alpine 6.4.0) 6.4.0
   5 alpine:edge                   : Ok   gcc (Alpine 6.4.0) 6.4.0
   6 amazonlinux:1                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-11)
   7 amazonlinux:2                 : Ok   gcc (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2)
   8 android-ndk:r12b-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
   9 android-ndk:r15c-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
  10 centos:5                      : Ok   gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-55)
  11 centos:6                      : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)
  12 centos:7                      : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-16)
  13 debian:7                      : Ok   gcc (Debian 4.7.2-5) 4.7.2
  14 debian:8                      : Ok   gcc (Debian 4.9.2-10+deb8u1) 4.9.2
  15 debian:9                      : Ok   gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516
  16 debian:experimental           : Ok   gcc (Debian 7.2.0-17) 7.2.1 20171205
  17 debian:experimental-x-arm64   : Ok   aarch64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
  18 debian:experimental-x-mips    : Ok   mips-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
  19 debian:experimental-x-mips64  : Ok   mips64-linux-gnuabi64-gcc (Debian 7.2.0-11) 7.2.0
  20 debian:experimental-x-mipsel  : Ok   mipsel-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
  21 fedora:20                     : Ok   gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7)
  22 fedora:21                     : Ok   gcc (GCC) 4.9.2 20150212 (Red Hat 4.9.2-6)
  23 fedora:22                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
  24 fedora:23                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
  25 fedora:24                     : Ok   gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1)
  26 fedora:24-x-ARC-uClibc        : Ok   arc-linux-gcc (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710
  27 fedora:25                     : Ok   gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1)
  28 fedora:26                     : Ok   gcc (GCC) 7.3.1 20180130 (Red Hat 7.3.1-2)
  29 fedora:27                     : Ok   gcc (GCC) 7.3.1 20180303 (Red Hat 7.3.1-5)
  30 fedora:rawhide                : Ok   gcc (GCC) 8.0.1 20180222 (Red Hat 8.0.1-0.16)
  31 gentoo-stage3-amd64:latest    : Ok   gcc (Gentoo 6.4.0-r1 p1.3) 6.4.0
  32 mageia:5                      : Ok   gcc (GCC) 4.9.2
  33 mageia:6                      : Ok   gcc (Mageia 5.4.0-5.mga6) 5.4.0
  34 opensuse:42.1                 : Ok   gcc (SUSE Linux) 4.8.5
  35 opensuse:42.2                 : Ok   gcc (SUSE Linux) 4.8.5
  36 opensuse:42.3                 : Ok   gcc (SUSE Linux) 4.8.5
  37 opensuse:tumbleweed           : Ok   gcc (SUSE Linux) 7.3.0
  38 oraclelinux:6                 : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)
  39 oraclelinux:7                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-16.0.3)
  40 ubuntu:12.04.5                : Ok   gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
  41 ubuntu:14.04.4                : Ok   gcc (Ubuntu 4.8.4-2ubuntu1~14.04.3) 4.8.4
  42 ubuntu:14.04.4-x-linaro-arm64 : Ok   aarch64-linux-gnu-gcc (Linaro GCC 5.4-2017.05) 5.4.1 20170404
  43 ubuntu:15.04                  : Ok   gcc (Ubuntu 4.9.2-10ubuntu13) 4.9.2
  44 ubuntu:16.04                  : Ok   gcc (Ubuntu 5.4.0-6ubuntu1~16.04.5) 5.4.0 20160609
  45 ubuntu:16.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  46 ubuntu:16.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  47 ubuntu:16.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  48 ubuntu:16.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.1) 5.4.0 20160609
  49 ubuntu:16.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  50 ubuntu:16.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  51 ubuntu:16.10                  : Ok   gcc (Ubuntu 6.2.0-5ubuntu12) 6.2.0 20161005
  52 ubuntu:17.04                  : Ok   gcc (Ubuntu 6.3.0-12ubuntu2) 6.3.0 20170406
  53 ubuntu:17.10                  : Ok   gcc (Ubuntu 7.2.0-8ubuntu3) 7.2.0
  54 ubuntu:18.04                  : Ok   gcc (Ubuntu 7.2.0-16ubuntu1) 7.2.0

  # uname -a
  Linux jouet 4.16.0-rc5-00086-gdf09348f78dc #1 SMP Fri Mar 16 09:46:40 -03 2018 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: Breakpoint accounting                                 : Skip
  22: Number of exit events of a simple workload            : Ok
  23: Software clock events period values                   : Ok
  24: Object code reading                                   : Ok
  25: Sample parsing                                        : Ok
  26: Use a dummy software event to keep tracking           : Ok
  27: Parse with no sample_id_all bit set                   : Ok
  28: Filter hist entries                                   : Ok
  29: Lookup mmap thread                                    : Ok
  30: Share thread mg                                       : Ok
  31: Sort output of hist entries                           : Ok
  32: Cumulate child hist entries                           : Ok
  33: Track with sched_switch                               : Ok
  34: Filter fds with revents mask in a fdarray             : Ok
  35: Add fd to a fdarray, making it autogrow               : Ok
  36: kmod_path__parse                                      : Ok
  37: Thread map                                            : Ok
  38: LLVM search and compile                               :
  38.1: Basic BPF llvm compile                              : Ok
  38.2: kbuild searching                                    : Ok
  38.3: Compile source for BPF prologue generation          : Ok
  38.4: Compile source for BPF relocation                   : Ok
  39: Session topology                                      : Ok
  40: BPF filter                                            :
  40.1: Basic BPF filtering                                 : Ok
  40.2: BPF pinning                                         : Ok
  40.3: BPF prologue generation                             : Ok
  40.4: BPF relocation checker                              : Ok
  41: Synthesize thread map                                 : Ok
  42: Remove thread map                                     : Ok
  43: Synthesize cpu map                                    : Ok
  44: Synthesize stat config                                : Ok
  45: Synthesize stat                                       : Ok
  46: Synthesize stat round                                 : Ok
  47: Synthesize attr update                                : Ok
  48: Event times                                           : Ok
  49: Read backward ring buffer                             : Ok
  50: Print cpu map                                         : Ok
  51: Probe SDT events                                      : Ok
  52: is_printable_array                                    : Ok
  53: Print bitmap                                          : Ok
  54: perf hooks                                            : Ok
  55: builtin clang support                                 : Skip (not compiled in)
  56: unit_number__scnprintf                                : Ok
  57: mem2node                                              : Ok
  58: x86 rdpmc                                             : Ok
  59: Convert perf time to TSC                              : Ok
  60: DWARF unwind                                          : Ok
  61: x86 instruction decoder - new instructions            : Ok
  62: Use vfs_getname probe to get syscall args filenames   : Ok
  63: Check open filename arg using perf trace + vfs_getname: Ok
  64: probe libc's inet_pton & backtrace it with ping       : Ok
  65: Add vfs_getname probe to get syscall args filenames   : Ok
  #

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

[GIT PULL 00/14] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling, this has those 31 patches that were
blocked due to some problems (author not being the fist S-o-B, build
broken on ppc), those issues should all be fixed and then we have 14
patches more, described in the signed tag.

Regards,

- Arnaldo

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

The following changes since commit 10f354a36f9a9aa1b8bffe0abc1cd43822a85bcd:

  perf test: Fix exit code for record+probe_libc_inet_pton.sh (2018-03-16 13:56:31 -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-4.17-20180319

for you to fetch changes up to 1cd618838b9703eabe4a75badf433382b12f6bef:

  perf tests bp_account: Fix build with clang-6 (2018-03-19 13:51:54 -0300)

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

- Fixes for problems experienced with new gcc 8 warnings, that treated
  as errors, broke the build, related to snprintf and casting issues.
  (Arnaldo Carvalho de Melo, Jiri Olsa, Josh Poinboeuf)

- Fix build of new breakpoint 'perf test' entry with clang < 6, noticed
  on fedora 25, 26 and 27 (Arnaldo Carvalho de Melo)

- Workaround problem with symbol resolution in 'perf annotate', using
  the symbol name already present in the objdump output (Arnaldo Carvalho de Melo)

- Document 'perf top --ignore-vmlinux' (Arnaldo Carvalho de Melo)

- Fix out of bounds access on array fd when cnt is 100 in one of the
  'perf test' entries, detected using 'cpptest' (Colin Ian King)

- Add support for the forced leader feature, i.e. 'perf report --group'
  for a group of events not really grouped when scheduled (without using
  {} to enclose the list of events in the command line) in pipe mode,
  e.g.:

  $ perf record -e cycles,instructions -o - kill | perf report --group -i -

- Use right type to access array elements in 'perf probe' (Masami Hiramatsu)

- Update POWER9 vendor events (those described in JSON format) (Sukadev Bhattiprolu)

- Discard head in overwrite_rb_find_range() (Yisheng Xie)

- Avoid setting 'quiet' to 'true' unnecessarily (Yisheng Xie)

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

----------------------------------------------------------------
Arnaldo Carvalho de Melo (4):
      perf annotate: Use asprintf when formatting objdump command line
      perf top: Document --ignore-vmlinux
      perf annotate: Use ops->target.name when available for unresolved call targets
      perf tests bp_account: Fix build with clang-6

Colin Ian King (1):
      perf tests: Fix out of bounds access on array fd when cnt is 100

Jiri Olsa (4):
      perf record: Synthesize features before events in pipe mode
      perf report: Support forced leader feature in pipe mode
      perf tools: Fix snprint warnings for gcc 8
      perf tools: Fix python extension build for gcc 8

Josh Poimboeuf (1):
      objtool, perf: Fix GCC 8 -Wrestrict error

Masami Hiramatsu (1):
      perf probe: Use right type to access array elements

Sukadev Bhattiprolu (1):
      perf vendor events: Update POWER9 events

Yisheng Xie (2):
      perf mmap: Discard head in overwrite_rb_find_range()
      perf debug: Avoid setting 'quiet' to 'true' unnecessarily

 tools/lib/str_error_r.c                            |   2 +-
 tools/perf/Documentation/perf-top.txt              |   3 +
 tools/perf/builtin-record.c                        |  18 +-
 tools/perf/builtin-report.c                        |  57 +++--
 tools/perf/builtin-script.c                        |  22 +-
 .../perf/pmu-events/arch/powerpc/power9/cache.json |  25 ---
 .../pmu-events/arch/powerpc/power9/frontend.json   |  10 -
 .../pmu-events/arch/powerpc/power9/marked.json     |   5 -
 .../pmu-events/arch/powerpc/power9/memory.json     |   5 -
 .../perf/pmu-events/arch/powerpc/power9/other.json | 241 ++++++++++++++-------
 .../pmu-events/arch/powerpc/power9/pipeline.json   |  50 ++---
 tools/perf/pmu-events/arch/powerpc/power9/pmc.json |   5 -
 .../arch/powerpc/power9/translation.json           |  10 +-
 tools/perf/tests/attr.c                            |   4 +-
 tools/perf/tests/bp_account.c                      |  10 +-
 tools/perf/tests/mem.c                             |   2 +-
 tools/perf/tests/pmu.c                             |   2 +-
 tools/perf/util/annotate.c                         |  20 +-
 tools/perf/util/cgroup.c                           |   2 +-
 tools/perf/util/debug.c                            |   1 -
 tools/perf/util/header.c                           |  11 +-
 tools/perf/util/mmap.c                             |  15 +-
 tools/perf/util/parse-events.c                     |   4 +-
 tools/perf/util/pmu.c                              |   2 +-
 tools/perf/util/probe-finder.c                     |  13 +-
 tools/perf/util/setup.py                           |   2 +
 26 files changed, 298 insertions(+), 243 deletions(-)

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.

[root@jouet ~]# time 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:3.7                    : Ok   gcc (Alpine 6.4.0) 6.4.0
   5 alpine:edge                   : Ok   gcc (Alpine 6.4.0) 6.4.0
   6 amazonlinux:1                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-11)
   7 amazonlinux:2                 : Ok   gcc (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2)
   8 android-ndk:r12b-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
   9 android-ndk:r15c-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
  10 centos:5                      : Ok   gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-55)
  11 centos:6                      : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)
  12 centos:7                      : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-16)
  13 debian:7                      : Ok   gcc (Debian 4.7.2-5) 4.7.2
  14 debian:8                      : Ok   gcc (Debian 4.9.2-10+deb8u1) 4.9.2
  15 debian:9                      : Ok   gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516
  16 debian:experimental           : Ok   gcc (Debian 7.2.0-17) 7.2.1 20171205
  17 debian:experimental-x-arm64   : Ok   aarch64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
  18 debian:experimental-x-mips    : Ok   mips-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
  19 debian:experimental-x-mips64  : Ok   mips64-linux-gnuabi64-gcc (Debian 7.2.0-11) 7.2.0
  20 debian:experimental-x-mipsel  : Ok   mipsel-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
  21 fedora:20                     : Ok   gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7)
  22 fedora:21                     : Ok   gcc (GCC) 4.9.2 20150212 (Red Hat 4.9.2-6)
  23 fedora:22                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
  24 fedora:23                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
  25 fedora:24                     : Ok   gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1)
  26 fedora:24-x-ARC-uClibc        : Ok   arc-linux-gcc (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710
  27 fedora:25                     : Ok   gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1)
  28 fedora:26                     : Ok   gcc (GCC) 7.3.1 20180130 (Red Hat 7.3.1-2)
  29 fedora:27                     : Ok   gcc (GCC) 7.3.1 20180303 (Red Hat 7.3.1-5)
  30 fedora:rawhide                : Ok   gcc (GCC) 8.0.1 20180222 (Red Hat 8.0.1-0.16)
  31 gentoo-stage3-amd64:latest    : Ok   gcc (Gentoo 6.4.0-r1 p1.3) 6.4.0
  32 mageia:5                      : Ok   gcc (GCC) 4.9.2
  33 mageia:6                      : Ok   gcc (Mageia 5.4.0-5.mga6) 5.4.0
  34 opensuse:42.1                 : Ok   gcc (SUSE Linux) 4.8.5
  35 opensuse:42.2                 : Ok   gcc (SUSE Linux) 4.8.5
  36 opensuse:42.3                 : Ok   gcc (SUSE Linux) 4.8.5
  37 opensuse:tumbleweed           : Ok   gcc (SUSE Linux) 7.3.0
  38 oraclelinux:6                 : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)
  39 oraclelinux:7                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-16.0.3)
  40 ubuntu:12.04.5                : Ok   gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
  41 ubuntu:14.04.4                : Ok   gcc (Ubuntu 4.8.4-2ubuntu1~14.04.3) 4.8.4
  42 ubuntu:14.04.4-x-linaro-arm64 : Ok   aarch64-linux-gnu-gcc (Linaro GCC 5.4-2017.05) 5.4.1 20170404
  43 ubuntu:15.04                  : Ok   gcc (Ubuntu 4.9.2-10ubuntu13) 4.9.2
  44 ubuntu:16.04                  : Ok   gcc (Ubuntu 5.4.0-6ubuntu1~16.04.5) 5.4.0 20160609
  45 ubuntu:16.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  46 ubuntu:16.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  47 ubuntu:16.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  48 ubuntu:16.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.1) 5.4.0 20160609
  49 ubuntu:16.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  50 ubuntu:16.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  51 ubuntu:16.10                  : Ok   gcc (Ubuntu 6.2.0-5ubuntu12) 6.2.0 20161005
  52 ubuntu:17.04                  : Ok   gcc (Ubuntu 6.3.0-12ubuntu2) 6.3.0 20170406
  53 ubuntu:17.10                  : Ok   gcc (Ubuntu 7.2.0-8ubuntu3) 7.2.0
  54 ubuntu:18.04                  : Ok   gcc (Ubuntu 7.2.0-16ubuntu1) 7.2.0

  # uname -a
  Linux jouet 4.16.0-rc5-00086-gdf09348f78dc #1 SMP Fri Mar 16 09:46:40 -03 2018 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: Breakpoint accounting                                 : Skip
  22: Number of exit events of a simple workload            : Ok
  23: Software clock events period values                   : Ok
  24: Object code reading                                   : Ok
  25: Sample parsing                                        : Ok
  26: Use a dummy software event to keep tracking           : Ok
  27: Parse with no sample_id_all bit set                   : Ok
  28: Filter hist entries                                   : Ok
  29: Lookup mmap thread                                    : Ok
  30: Share thread mg                                       : Ok
  31: Sort output of hist entries                           : Ok
  32: Cumulate child hist entries                           : Ok
  33: Track with sched_switch                               : Ok
  34: Filter fds with revents mask in a fdarray             : Ok
  35: Add fd to a fdarray, making it autogrow               : Ok
  36: kmod_path__parse                                      : Ok
  37: Thread map                                            : Ok
  38: LLVM search and compile                               :
  38.1: Basic BPF llvm compile                              : Ok
  38.2: kbuild searching                                    : Ok
  38.3: Compile source for BPF prologue generation          : Ok
  38.4: Compile source for BPF relocation                   : Ok
  39: Session topology                                      : Ok
  40: BPF filter                                            :
  40.1: Basic BPF filtering                                 : Ok
  40.2: BPF pinning                                         : Ok
  40.3: BPF prologue generation                             : Ok
  40.4: BPF relocation checker                              : Ok
  41: Synthesize thread map                                 : Ok
  42: Remove thread map                                     : Ok
  43: Synthesize cpu map                                    : Ok
  44: Synthesize stat config                                : Ok
  45: Synthesize stat                                       : Ok
  46: Synthesize stat round                                 : Ok
  47: Synthesize attr update                                : Ok
  48: Event times                                           : Ok
  49: Read backward ring buffer                             : Ok
  50: Print cpu map                                         : Ok
  51: Probe SDT events                                      : Ok
  52: is_printable_array                                    : Ok
  53: Print bitmap                                          : Ok
  54: perf hooks                                            : Ok
  55: builtin clang support                                 : Skip (not compiled in)
  56: unit_number__scnprintf                                : Ok
  57: mem2node                                              : Ok
  58: x86 rdpmc                                             : Ok
  59: Convert perf time to TSC                              : Ok
  60: DWARF unwind                                          : Ok
  61: x86 instruction decoder - new instructions            : Ok
  62: Use vfs_getname probe to get syscall args filenames   : Ok
  63: Check open filename arg using perf trace + vfs_getname: Ok
  64: probe libc's inet_pton & backtrace it with ping       : Ok
  65: Add vfs_getname probe to get syscall args filenames   : Ok
  #

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

[GIT PULL 00/14] perf/core improvements and fixes

[acme]

Hi Ingo,

	Please consider pulling, this has those 31 patches that were
blocked due to some problems (author not being the fist S-o-B, build
broken on ppc), those issues should all be fixed and then we have 14
patches more, described in the signed tag.

Regards,

- Arnaldo

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

The following changes since commit 10f354a36f9a9aa1b8bffe0abc1cd43822a85bcd:

  perf test: Fix exit code for record+probe_libc_inet_pton.sh (2018-03-16 13:56:31 -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-4.17-20180319

for you to fetch changes up to 1cd618838b9703eabe4a75badf433382b12f6bef:

  perf tests bp_account: Fix build with clang-6 (2018-03-19 13:51:54 -0300)

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

- Fixes for problems experienced with new gcc 8 warnings, that treated
  as errors, broke the build, related to snprintf and casting issues.
  (Arnaldo Carvalho de Melo, Jiri Olsa, Josh Poinboeuf)

- Fix build of new breakpoint 'perf test' entry with clang < 6, noticed
  on fedora 25, 26 and 27 (Arnaldo Carvalho de Melo)

- Workaround problem with symbol resolution in 'perf annotate', using
  the symbol name already present in the objdump output (Arnaldo Carvalho de Melo)

- Document 'perf top --ignore-vmlinux' (Arnaldo Carvalho de Melo)

- Fix out of bounds access on array fd when cnt is 100 in one of the
  'perf test' entries, detected using 'cpptest' (Colin Ian King)

- Add support for the forced leader feature, i.e. 'perf report --group'
  for a group of events not really grouped when scheduled (without using
  {} to enclose the list of events in the command line) in pipe mode,
  e.g.:

  $ perf record -e cycles,instructions -o - kill | perf report --group -i -

- Use right type to access array elements in 'perf probe' (Masami Hiramatsu)

- Update POWER9 vendor events (those described in JSON format) (Sukadev Bhattiprolu)

- Discard head in overwrite_rb_find_range() (Yisheng Xie)

- Avoid setting 'quiet' to 'true' unnecessarily (Yisheng Xie)

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

----------------------------------------------------------------
Arnaldo Carvalho de Melo (4):
      perf annotate: Use asprintf when formatting objdump command line
      perf top: Document --ignore-vmlinux
      perf annotate: Use ops->target.name when available for unresolved call targets
      perf tests bp_account: Fix build with clang-6

Colin Ian King (1):
      perf tests: Fix out of bounds access on array fd when cnt is 100

Jiri Olsa (4):
      perf record: Synthesize features before events in pipe mode
      perf report: Support forced leader feature in pipe mode
      perf tools: Fix snprint warnings for gcc 8
      perf tools: Fix python extension build for gcc 8

Josh Poimboeuf (1):
      objtool, perf: Fix GCC 8 -Wrestrict error

Masami Hiramatsu (1):
      perf probe: Use right type to access array elements

Sukadev Bhattiprolu (1):
      perf vendor events: Update POWER9 events

Yisheng Xie (2):
      perf mmap: Discard head in overwrite_rb_find_range()
      perf debug: Avoid setting 'quiet' to 'true' unnecessarily

 tools/lib/str_error_r.c                            |   2 +-
 tools/perf/Documentation/perf-top.txt              |   3 +
 tools/perf/builtin-record.c                        |  18 +-
 tools/perf/builtin-report.c                        |  57 +++--
 tools/perf/builtin-script.c                        |  22 +-
 .../perf/pmu-events/arch/powerpc/power9/cache.json |  25 ---
 .../pmu-events/arch/powerpc/power9/frontend.json   |  10 -
 .../pmu-events/arch/powerpc/power9/marked.json     |   5 -
 .../pmu-events/arch/powerpc/power9/memory.json     |   5 -
 .../perf/pmu-events/arch/powerpc/power9/other.json | 241 ++++++++++++++-------
 .../pmu-events/arch/powerpc/power9/pipeline.json   |  50 ++---
 tools/perf/pmu-events/arch/powerpc/power9/pmc.json |   5 -
 .../arch/powerpc/power9/translation.json           |  10 +-
 tools/perf/tests/attr.c                            |   4 +-
 tools/perf/tests/bp_account.c                      |  10 +-
 tools/perf/tests/mem.c                             |   2 +-
 tools/perf/tests/pmu.c                             |   2 +-
 tools/perf/util/annotate.c                         |  20 +-
 tools/perf/util/cgroup.c                           |   2 +-
 tools/perf/util/debug.c                            |   1 -
 tools/perf/util/header.c                           |  11 +-
 tools/perf/util/mmap.c                             |  15 +-
 tools/perf/util/parse-events.c                     |   4 +-
 tools/perf/util/pmu.c                              |   2 +-
 tools/perf/util/probe-finder.c                     |  13 +-
 tools/perf/util/setup.py                           |   2 +
 26 files changed, 298 insertions(+), 243 deletions(-)

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.

[root at jouet ~]# time 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:3.7                    : Ok   gcc (Alpine 6.4.0) 6.4.0
   5 alpine:edge                   : Ok   gcc (Alpine 6.4.0) 6.4.0
   6 amazonlinux:1                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-11)
   7 amazonlinux:2                 : Ok   gcc (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2)
   8 android-ndk:r12b-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
   9 android-ndk:r15c-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
  10 centos:5                      : Ok   gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-55)
  11 centos:6                      : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)
  12 centos:7                      : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-16)
  13 debian:7                      : Ok   gcc (Debian 4.7.2-5) 4.7.2
  14 debian:8                      : Ok   gcc (Debian 4.9.2-10+deb8u1) 4.9.2
  15 debian:9                      : Ok   gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516
  16 debian:experimental           : Ok   gcc (Debian 7.2.0-17) 7.2.1 20171205
  17 debian:experimental-x-arm64   : Ok   aarch64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
  18 debian:experimental-x-mips    : Ok   mips-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
  19 debian:experimental-x-mips64  : Ok   mips64-linux-gnuabi64-gcc (Debian 7.2.0-11) 7.2.0
  20 debian:experimental-x-mipsel  : Ok   mipsel-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
  21 fedora:20                     : Ok   gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7)
  22 fedora:21                     : Ok   gcc (GCC) 4.9.2 20150212 (Red Hat 4.9.2-6)
  23 fedora:22                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
  24 fedora:23                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
  25 fedora:24                     : Ok   gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1)
  26 fedora:24-x-ARC-uClibc        : Ok   arc-linux-gcc (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710
  27 fedora:25                     : Ok   gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1)
  28 fedora:26                     : Ok   gcc (GCC) 7.3.1 20180130 (Red Hat 7.3.1-2)
  29 fedora:27                     : Ok   gcc (GCC) 7.3.1 20180303 (Red Hat 7.3.1-5)
  30 fedora:rawhide                : Ok   gcc (GCC) 8.0.1 20180222 (Red Hat 8.0.1-0.16)
  31 gentoo-stage3-amd64:latest    : Ok   gcc (Gentoo 6.4.0-r1 p1.3) 6.4.0
  32 mageia:5                      : Ok   gcc (GCC) 4.9.2
  33 mageia:6                      : Ok   gcc (Mageia 5.4.0-5.mga6) 5.4.0
  34 opensuse:42.1                 : Ok   gcc (SUSE Linux) 4.8.5
  35 opensuse:42.2                 : Ok   gcc (SUSE Linux) 4.8.5
  36 opensuse:42.3                 : Ok   gcc (SUSE Linux) 4.8.5
  37 opensuse:tumbleweed           : Ok   gcc (SUSE Linux) 7.3.0
  38 oraclelinux:6                 : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)
  39 oraclelinux:7                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-16.0.3)
  40 ubuntu:12.04.5                : Ok   gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
  41 ubuntu:14.04.4                : Ok   gcc (Ubuntu 4.8.4-2ubuntu1~14.04.3) 4.8.4
  42 ubuntu:14.04.4-x-linaro-arm64 : Ok   aarch64-linux-gnu-gcc (Linaro GCC 5.4-2017.05) 5.4.1 20170404
  43 ubuntu:15.04                  : Ok   gcc (Ubuntu 4.9.2-10ubuntu13) 4.9.2
  44 ubuntu:16.04                  : Ok   gcc (Ubuntu 5.4.0-6ubuntu1~16.04.5) 5.4.0 20160609
  45 ubuntu:16.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  46 ubuntu:16.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  47 ubuntu:16.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  48 ubuntu:16.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.1) 5.4.0 20160609
  49 ubuntu:16.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  50 ubuntu:16.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  51 ubuntu:16.10                  : Ok   gcc (Ubuntu 6.2.0-5ubuntu12) 6.2.0 20161005
  52 ubuntu:17.04                  : Ok   gcc (Ubuntu 6.3.0-12ubuntu2) 6.3.0 20170406
  53 ubuntu:17.10                  : Ok   gcc (Ubuntu 7.2.0-8ubuntu3) 7.2.0
  54 ubuntu:18.04                  : Ok   gcc (Ubuntu 7.2.0-16ubuntu1) 7.2.0

  # uname -a
  Linux jouet 4.16.0-rc5-00086-gdf09348f78dc #1 SMP Fri Mar 16 09:46:40 -03 2018 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: Breakpoint accounting                                 : Skip
  22: Number of exit events of a simple workload            : Ok
  23: Software clock events period values                   : Ok
  24: Object code reading                                   : Ok
  25: Sample parsing                                        : Ok
  26: Use a dummy software event to keep tracking           : Ok
  27: Parse with no sample_id_all bit set                   : Ok
  28: Filter hist entries                                   : Ok
  29: Lookup mmap thread                                    : Ok
  30: Share thread mg                                       : Ok
  31: Sort output of hist entries                           : Ok
  32: Cumulate child hist entries                           : Ok
  33: Track with sched_switch                               : Ok
  34: Filter fds with revents mask in a fdarray             : Ok
  35: Add fd to a fdarray, making it autogrow               : Ok
  36: kmod_path__parse                                      : Ok
  37: Thread map                                            : Ok
  38: LLVM search and compile                               :
  38.1: Basic BPF llvm compile                              : Ok
  38.2: kbuild searching                                    : Ok
  38.3: Compile source for BPF prologue generation          : Ok
  38.4: Compile source for BPF relocation                   : Ok
  39: Session topology                                      : Ok
  40: BPF filter                                            :
  40.1: Basic BPF filtering                                 : Ok
  40.2: BPF pinning                                         : Ok
  40.3: BPF prologue generation                             : Ok
  40.4: BPF relocation checker                              : Ok
  41: Synthesize thread map                                 : Ok
  42: Remove thread map                                     : Ok
  43: Synthesize cpu map                                    : Ok
  44: Synthesize stat config                                : Ok
  45: Synthesize stat                                       : Ok
  46: Synthesize stat round                                 : Ok
  47: Synthesize attr update                                : Ok
  48: Event times                                           : Ok
  49: Read backward ring buffer                             : Ok
  50: Print cpu map                                         : Ok
  51: Probe SDT events                                      : Ok
  52: is_printable_array                                    : Ok
  53: Print bitmap                                          : Ok
  54: perf hooks                                            : Ok
  55: builtin clang support                                 : Skip (not compiled in)
  56: unit_number__scnprintf                                : Ok
  57: mem2node                                              : Ok
  58: x86 rdpmc                                             : Ok
  59: Convert perf time to TSC                              : Ok
  60: DWARF unwind                                          : Ok
  61: x86 instruction decoder - new instructions            : Ok
  62: Use vfs_getname probe to get syscall args filenames   : Ok
  63: Check open filename arg using perf trace + vfs_getname: Ok
  64: probe libc's inet_pton & backtrace it with ping       : Ok
  65: Add vfs_getname probe to get syscall args filenames   : Ok
  #

  $ make -C tools/perf build-test
  make: Entering directory '/home/acme/git/perf/tools/perf'
  - tarpkg: ./tests/perf-targz-src-pkg .
           make_no_libbionic_O: make NO_LIBBIONIC=1
              make_no_libelf_O: make NO_LIBELF=1
         make_with_clangllvm_O: make LIBCLANGLLVM=1
   make_install_prefix_slash_O: make install prefix=/tmp/krava/
              make_no_libbpf_O: make NO_LIBBPF=1
           make_no_backtrace_O: make NO_BACKTRACE=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_slang_O: make NO_SLANG=1
             make_no_libnuma_O: make NO_LIBNUMA=1
              make_clean_all_O: make clean all
             make_util_map_o_O: make util/map.o
            make_no_demangle_O: make NO_DEMANGLE=1
            make_no_auxtrace_O: make NO_AUXTRACE=1
                   make_pure_O: make
            make_install_bin_O: make install-bin
                make_install_O: make install
  make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
                   make_tags_O: make tags
         make_install_prefix_O: make install prefix=/tmp/krava
                  make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
             make_no_libperl_O: make NO_LIBPERL=1
                make_no_gtk2_O: make NO_GTK2=1
                 make_static_O: make LDFLAGS=-static
                   make_help_O: make help
                make_no_newt_O: make NO_NEWT=1
                  make_debug_O: make DEBUG=1
           make_no_libunwind_O: make NO_LIBUNWIND=1
        make_with_babeltrace_O: make LIBBABELTRACE=1
            make_no_libaudit_O: make NO_LIBAUDIT=1
                 make_perf_o_O: make perf.o
             make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
       make_util_pmu_bison_o_O: make util/pmu-bison.o
           make_no_libpython_O: make NO_LIBPYTHON=1
                    make_doc_O: make doc
  OK
  make: Leaving directory '/home/acme/git/perf/tools/perf'
  $
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[GIT PULL 00/14] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling, this has those 31 patches that were
blocked due to some problems (author not being the fist S-o-B, build
broken on ppc), those issues should all be fixed and then we have 14
patches more, described in the signed tag.

Regards,

- Arnaldo

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

The following changes since commit 10f354a36f9a9aa1b8bffe0abc1cd43822a85bcd:

  perf test: Fix exit code for record+probe_libc_inet_pton.sh (2018-03-16 13:56:31 -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-4.17-20180319

for you to fetch changes up to 1cd618838b9703eabe4a75badf433382b12f6bef:

  perf tests bp_account: Fix build with clang-6 (2018-03-19 13:51:54 -0300)

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

- Fixes for problems experienced with new gcc 8 warnings, that treated
  as errors, broke the build, related to snprintf and casting issues.
  (Arnaldo Carvalho de Melo, Jiri Olsa, Josh Poinboeuf)

- Fix build of new breakpoint 'perf test' entry with clang < 6, noticed
  on fedora 25, 26 and 27 (Arnaldo Carvalho de Melo)

- Workaround problem with symbol resolution in 'perf annotate', using
  the symbol name already present in the objdump output (Arnaldo Carvalho de Melo)

- Document 'perf top --ignore-vmlinux' (Arnaldo Carvalho de Melo)

- Fix out of bounds access on array fd when cnt is 100 in one of the
  'perf test' entries, detected using 'cpptest' (Colin Ian King)

- Add support for the forced leader feature, i.e. 'perf report --group'
  for a group of events not really grouped when scheduled (without using
  {} to enclose the list of events in the command line) in pipe mode,
  e.g.:

  $ perf record -e cycles,instructions -o - kill | perf report --group -i -

- Use right type to access array elements in 'perf probe' (Masami Hiramatsu)

- Update POWER9 vendor events (those described in JSON format) (Sukadev Bhattiprolu)

- Discard head in overwrite_rb_find_range() (Yisheng Xie)

- Avoid setting 'quiet' to 'true' unnecessarily (Yisheng Xie)

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

----------------------------------------------------------------
Arnaldo Carvalho de Melo (4):
      perf annotate: Use asprintf when formatting objdump command line
      perf top: Document --ignore-vmlinux
      perf annotate: Use ops->target.name when available for unresolved call targets
      perf tests bp_account: Fix build with clang-6

Colin Ian King (1):
      perf tests: Fix out of bounds access on array fd when cnt is 100

Jiri Olsa (4):
      perf record: Synthesize features before events in pipe mode
      perf report: Support forced leader feature in pipe mode
      perf tools: Fix snprint warnings for gcc 8
      perf tools: Fix python extension build for gcc 8

Josh Poimboeuf (1):
      objtool, perf: Fix GCC 8 -Wrestrict error

Masami Hiramatsu (1):
      perf probe: Use right type to access array elements

Sukadev Bhattiprolu (1):
      perf vendor events: Update POWER9 events

Yisheng Xie (2):
      perf mmap: Discard head in overwrite_rb_find_range()
      perf debug: Avoid setting 'quiet' to 'true' unnecessarily

 tools/lib/str_error_r.c                            |   2 +-
 tools/perf/Documentation/perf-top.txt              |   3 +
 tools/perf/builtin-record.c                        |  18 +-
 tools/perf/builtin-report.c                        |  57 +++--
 tools/perf/builtin-script.c                        |  22 +-
 .../perf/pmu-events/arch/powerpc/power9/cache.json |  25 ---
 .../pmu-events/arch/powerpc/power9/frontend.json   |  10 -
 .../pmu-events/arch/powerpc/power9/marked.json     |   5 -
 .../pmu-events/arch/powerpc/power9/memory.json     |   5 -
 .../perf/pmu-events/arch/powerpc/power9/other.json | 241 ++++++++++++++-------
 .../pmu-events/arch/powerpc/power9/pipeline.json   |  50 ++---
 tools/perf/pmu-events/arch/powerpc/power9/pmc.json |   5 -
 .../arch/powerpc/power9/translation.json           |  10 +-
 tools/perf/tests/attr.c                            |   4 +-
 tools/perf/tests/bp_account.c                      |  10 +-
 tools/perf/tests/mem.c                             |   2 +-
 tools/perf/tests/pmu.c                             |   2 +-
 tools/perf/util/annotate.c                         |  20 +-
 tools/perf/util/cgroup.c                           |   2 +-
 tools/perf/util/debug.c                            |   1 -
 tools/perf/util/header.c                           |  11 +-
 tools/perf/util/mmap.c                             |  15 +-
 tools/perf/util/parse-events.c                     |   4 +-
 tools/perf/util/pmu.c                              |   2 +-
 tools/perf/util/probe-finder.c                     |  13 +-
 tools/perf/util/setup.py                           |   2 +
 26 files changed, 298 insertions(+), 243 deletions(-)

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.

[root at jouet ~]# time 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:3.7                    : Ok   gcc (Alpine 6.4.0) 6.4.0
   5 alpine:edge                   : Ok   gcc (Alpine 6.4.0) 6.4.0
   6 amazonlinux:1                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-11)
   7 amazonlinux:2                 : Ok   gcc (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2)
   8 android-ndk:r12b-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
   9 android-ndk:r15c-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
  10 centos:5                      : Ok   gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-55)
  11 centos:6                      : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)
  12 centos:7                      : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-16)
  13 debian:7                      : Ok   gcc (Debian 4.7.2-5) 4.7.2
  14 debian:8                      : Ok   gcc (Debian 4.9.2-10+deb8u1) 4.9.2
  15 debian:9                      : Ok   gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516
  16 debian:experimental           : Ok   gcc (Debian 7.2.0-17) 7.2.1 20171205
  17 debian:experimental-x-arm64   : Ok   aarch64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
  18 debian:experimental-x-mips    : Ok   mips-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
  19 debian:experimental-x-mips64  : Ok   mips64-linux-gnuabi64-gcc (Debian 7.2.0-11) 7.2.0
  20 debian:experimental-x-mipsel  : Ok   mipsel-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
  21 fedora:20                     : Ok   gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7)
  22 fedora:21                     : Ok   gcc (GCC) 4.9.2 20150212 (Red Hat 4.9.2-6)
  23 fedora:22                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
  24 fedora:23                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
  25 fedora:24                     : Ok   gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1)
  26 fedora:24-x-ARC-uClibc        : Ok   arc-linux-gcc (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710
  27 fedora:25                     : Ok   gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1)
  28 fedora:26                     : Ok   gcc (GCC) 7.3.1 20180130 (Red Hat 7.3.1-2)
  29 fedora:27                     : Ok   gcc (GCC) 7.3.1 20180303 (Red Hat 7.3.1-5)
  30 fedora:rawhide                : Ok   gcc (GCC) 8.0.1 20180222 (Red Hat 8.0.1-0.16)
  31 gentoo-stage3-amd64:latest    : Ok   gcc (Gentoo 6.4.0-r1 p1.3) 6.4.0
  32 mageia:5                      : Ok   gcc (GCC) 4.9.2
  33 mageia:6                      : Ok   gcc (Mageia 5.4.0-5.mga6) 5.4.0
  34 opensuse:42.1                 : Ok   gcc (SUSE Linux) 4.8.5
  35 opensuse:42.2                 : Ok   gcc (SUSE Linux) 4.8.5
  36 opensuse:42.3                 : Ok   gcc (SUSE Linux) 4.8.5
  37 opensuse:tumbleweed           : Ok   gcc (SUSE Linux) 7.3.0
  38 oraclelinux:6                 : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)
  39 oraclelinux:7                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-16.0.3)
  40 ubuntu:12.04.5                : Ok   gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
  41 ubuntu:14.04.4                : Ok   gcc (Ubuntu 4.8.4-2ubuntu1~14.04.3) 4.8.4
  42 ubuntu:14.04.4-x-linaro-arm64 : Ok   aarch64-linux-gnu-gcc (Linaro GCC 5.4-2017.05) 5.4.1 20170404
  43 ubuntu:15.04                  : Ok   gcc (Ubuntu 4.9.2-10ubuntu13) 4.9.2
  44 ubuntu:16.04                  : Ok   gcc (Ubuntu 5.4.0-6ubuntu1~16.04.5) 5.4.0 20160609
  45 ubuntu:16.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  46 ubuntu:16.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  47 ubuntu:16.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  48 ubuntu:16.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.1) 5.4.0 20160609
  49 ubuntu:16.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  50 ubuntu:16.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  51 ubuntu:16.10                  : Ok   gcc (Ubuntu 6.2.0-5ubuntu12) 6.2.0 20161005
  52 ubuntu:17.04                  : Ok   gcc (Ubuntu 6.3.0-12ubuntu2) 6.3.0 20170406
  53 ubuntu:17.10                  : Ok   gcc (Ubuntu 7.2.0-8ubuntu3) 7.2.0
  54 ubuntu:18.04                  : Ok   gcc (Ubuntu 7.2.0-16ubuntu1) 7.2.0

  # uname -a
  Linux jouet 4.16.0-rc5-00086-gdf09348f78dc #1 SMP Fri Mar 16 09:46:40 -03 2018 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: Breakpoint accounting                                 : Skip
  22: Number of exit events of a simple workload            : Ok
  23: Software clock events period values                   : Ok
  24: Object code reading                                   : Ok
  25: Sample parsing                                        : Ok
  26: Use a dummy software event to keep tracking           : Ok
  27: Parse with no sample_id_all bit set                   : Ok
  28: Filter hist entries                                   : Ok
  29: Lookup mmap thread                                    : Ok
  30: Share thread mg                                       : Ok
  31: Sort output of hist entries                           : Ok
  32: Cumulate child hist entries                           : Ok
  33: Track with sched_switch                               : Ok
  34: Filter fds with revents mask in a fdarray             : Ok
  35: Add fd to a fdarray, making it autogrow               : Ok
  36: kmod_path__parse                                      : Ok
  37: Thread map                                            : Ok
  38: LLVM search and compile                               :
  38.1: Basic BPF llvm compile                              : Ok
  38.2: kbuild searching                                    : Ok
  38.3: Compile source for BPF prologue generation          : Ok
  38.4: Compile source for BPF relocation                   : Ok
  39: Session topology                                      : Ok
  40: BPF filter                                            :
  40.1: Basic BPF filtering                                 : Ok
  40.2: BPF pinning                                         : Ok
  40.3: BPF prologue generation                             : Ok
  40.4: BPF relocation checker                              : Ok
  41: Synthesize thread map                                 : Ok
  42: Remove thread map                                     : Ok
  43: Synthesize cpu map                                    : Ok
  44: Synthesize stat config                                : Ok
  45: Synthesize stat                                       : Ok
  46: Synthesize stat round                                 : Ok
  47: Synthesize attr update                                : Ok
  48: Event times                                           : Ok
  49: Read backward ring buffer                             : Ok
  50: Print cpu map                                         : Ok
  51: Probe SDT events                                      : Ok
  52: is_printable_array                                    : Ok
  53: Print bitmap                                          : Ok
  54: perf hooks                                            : Ok
  55: builtin clang support                                 : Skip (not compiled in)
  56: unit_number__scnprintf                                : Ok
  57: mem2node                                              : Ok
  58: x86 rdpmc                                             : Ok
  59: Convert perf time to TSC                              : Ok
  60: DWARF unwind                                          : Ok
  61: x86 instruction decoder - new instructions            : Ok
  62: Use vfs_getname probe to get syscall args filenames   : Ok
  63: Check open filename arg using perf trace + vfs_getname: Ok
  64: probe libc's inet_pton & backtrace it with ping       : Ok
  65: Add vfs_getname probe to get syscall args filenames   : Ok
  #

  $ make -C tools/perf build-test
  make: Entering directory '/home/acme/git/perf/tools/perf'
  - tarpkg: ./tests/perf-targz-src-pkg .
           make_no_libbionic_O: make NO_LIBBIONIC=1
              make_no_libelf_O: make NO_LIBELF=1
         make_with_clangllvm_O: make LIBCLANGLLVM=1
   make_install_prefix_slash_O: make install prefix=/tmp/krava/
              make_no_libbpf_O: make NO_LIBBPF=1
           make_no_backtrace_O: make NO_BACKTRACE=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_slang_O: make NO_SLANG=1
             make_no_libnuma_O: make NO_LIBNUMA=1
              make_clean_all_O: make clean all
             make_util_map_o_O: make util/map.o
            make_no_demangle_O: make NO_DEMANGLE=1
            make_no_auxtrace_O: make NO_AUXTRACE=1
                   make_pure_O: make
            make_install_bin_O: make install-bin
                make_install_O: make install
  make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
                   make_tags_O: make tags
         make_install_prefix_O: make install prefix=/tmp/krava
                  make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
             make_no_libperl_O: make NO_LIBPERL=1
                make_no_gtk2_O: make NO_GTK2=1
                 make_static_O: make LDFLAGS=-static
                   make_help_O: make help
                make_no_newt_O: make NO_NEWT=1
                  make_debug_O: make DEBUG=1
           make_no_libunwind_O: make NO_LIBUNWIND=1
        make_with_babeltrace_O: make LIBBABELTRACE=1
            make_no_libaudit_O: make NO_LIBAUDIT=1
                 make_perf_o_O: make perf.o
             make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
       make_util_pmu_bison_o_O: make util/pmu-bison.o
           make_no_libpython_O: make NO_LIBPYTHON=1
                    make_doc_O: make doc
  OK
  make: Leaving directory '/home/acme/git/perf/tools/perf'
  $
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[GIT PULL 00/14] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling, this has those 31 patches that were
blocked due to some problems (author not being the fist S-o-B, build
broken on ppc), those issues should all be fixed and then we have 14
patches more, described in the signed tag.

Regards,

- Arnaldo

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

The following changes since commit 10f354a36f9a9aa1b8bffe0abc1cd43822a85bcd:

  perf test: Fix exit code for record+probe_libc_inet_pton.sh (2018-03-16 13:56:31 -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-4.17-20180319

for you to fetch changes up to 1cd618838b9703eabe4a75badf433382b12f6bef:

  perf tests bp_account: Fix build with clang-6 (2018-03-19 13:51:54 -0300)

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

- Fixes for problems experienced with new gcc 8 warnings, that treated
  as errors, broke the build, related to snprintf and casting issues.
  (Arnaldo Carvalho de Melo, Jiri Olsa, Josh Poinboeuf)

- Fix build of new breakpoint 'perf test' entry with clang < 6, noticed
  on fedora 25, 26 and 27 (Arnaldo Carvalho de Melo)

- Workaround problem with symbol resolution in 'perf annotate', using
  the symbol name already present in the objdump output (Arnaldo Carvalho de Melo)

- Document 'perf top --ignore-vmlinux' (Arnaldo Carvalho de Melo)

- Fix out of bounds access on array fd when cnt is 100 in one of the
  'perf test' entries, detected using 'cpptest' (Colin Ian King)

- Add support for the forced leader feature, i.e. 'perf report --group'
  for a group of events not really grouped when scheduled (without using
  {} to enclose the list of events in the command line) in pipe mode,
  e.g.:

  $ perf record -e cycles,instructions -o - kill | perf report --group -i -

- Use right type to access array elements in 'perf probe' (Masami Hiramatsu)

- Update POWER9 vendor events (those described in JSON format) (Sukadev Bhattiprolu)

- Discard head in overwrite_rb_find_range() (Yisheng Xie)

- Avoid setting 'quiet' to 'true' unnecessarily (Yisheng Xie)

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

----------------------------------------------------------------
Arnaldo Carvalho de Melo (4):
      perf annotate: Use asprintf when formatting objdump command line
      perf top: Document --ignore-vmlinux
      perf annotate: Use ops->target.name when available for unresolved call targets
      perf tests bp_account: Fix build with clang-6

Colin Ian King (1):
      perf tests: Fix out of bounds access on array fd when cnt is 100

Jiri Olsa (4):
      perf record: Synthesize features before events in pipe mode
      perf report: Support forced leader feature in pipe mode
      perf tools: Fix snprint warnings for gcc 8
      perf tools: Fix python extension build for gcc 8

Josh Poimboeuf (1):
      objtool, perf: Fix GCC 8 -Wrestrict error

Masami Hiramatsu (1):
      perf probe: Use right type to access array elements

Sukadev Bhattiprolu (1):
      perf vendor events: Update POWER9 events

Yisheng Xie (2):
      perf mmap: Discard head in overwrite_rb_find_range()
      perf debug: Avoid setting 'quiet' to 'true' unnecessarily

 tools/lib/str_error_r.c                            |   2 +-
 tools/perf/Documentation/perf-top.txt              |   3 +
 tools/perf/builtin-record.c                        |  18 +-
 tools/perf/builtin-report.c                        |  57 +++--
 tools/perf/builtin-script.c                        |  22 +-
 .../perf/pmu-events/arch/powerpc/power9/cache.json |  25 ---
 .../pmu-events/arch/powerpc/power9/frontend.json   |  10 -
 .../pmu-events/arch/powerpc/power9/marked.json     |   5 -
 .../pmu-events/arch/powerpc/power9/memory.json     |   5 -
 .../perf/pmu-events/arch/powerpc/power9/other.json | 241 ++++++++++++++-------
 .../pmu-events/arch/powerpc/power9/pipeline.json   |  50 ++---
 tools/perf/pmu-events/arch/powerpc/power9/pmc.json |   5 -
 .../arch/powerpc/power9/translation.json           |  10 +-
 tools/perf/tests/attr.c                            |   4 +-
 tools/perf/tests/bp_account.c                      |  10 +-
 tools/perf/tests/mem.c                             |   2 +-
 tools/perf/tests/pmu.c                             |   2 +-
 tools/perf/util/annotate.c                         |  20 +-
 tools/perf/util/cgroup.c                           |   2 +-
 tools/perf/util/debug.c                            |   1 -
 tools/perf/util/header.c                           |  11 +-
 tools/perf/util/mmap.c                             |  15 +-
 tools/perf/util/parse-events.c                     |   4 +-
 tools/perf/util/pmu.c                              |   2 +-
 tools/perf/util/probe-finder.c                     |  13 +-
 tools/perf/util/setup.py                           |   2 +
 26 files changed, 298 insertions(+), 243 deletions(-)

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.

[root@jouet ~]# time 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:3.7                    : Ok   gcc (Alpine 6.4.0) 6.4.0
   5 alpine:edge                   : Ok   gcc (Alpine 6.4.0) 6.4.0
   6 amazonlinux:1                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-11)
   7 amazonlinux:2                 : Ok   gcc (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2)
   8 android-ndk:r12b-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
   9 android-ndk:r15c-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
  10 centos:5                      : Ok   gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-55)
  11 centos:6                      : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)
  12 centos:7                      : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-16)
  13 debian:7                      : Ok   gcc (Debian 4.7.2-5) 4.7.2
  14 debian:8                      : Ok   gcc (Debian 4.9.2-10+deb8u1) 4.9.2
  15 debian:9                      : Ok   gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516
  16 debian:experimental           : Ok   gcc (Debian 7.2.0-17) 7.2.1 20171205
  17 debian:experimental-x-arm64   : Ok   aarch64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
  18 debian:experimental-x-mips    : Ok   mips-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
  19 debian:experimental-x-mips64  : Ok   mips64-linux-gnuabi64-gcc (Debian 7.2.0-11) 7.2.0
  20 debian:experimental-x-mipsel  : Ok   mipsel-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
  21 fedora:20                     : Ok   gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7)
  22 fedora:21                     : Ok   gcc (GCC) 4.9.2 20150212 (Red Hat 4.9.2-6)
  23 fedora:22                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
  24 fedora:23                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
  25 fedora:24                     : Ok   gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1)
  26 fedora:24-x-ARC-uClibc        : Ok   arc-linux-gcc (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710
  27 fedora:25                     : Ok   gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1)
  28 fedora:26                     : Ok   gcc (GCC) 7.3.1 20180130 (Red Hat 7.3.1-2)
  29 fedora:27                     : Ok   gcc (GCC) 7.3.1 20180303 (Red Hat 7.3.1-5)
  30 fedora:rawhide                : Ok   gcc (GCC) 8.0.1 20180222 (Red Hat 8.0.1-0.16)
  31 gentoo-stage3-amd64:latest    : Ok   gcc (Gentoo 6.4.0-r1 p1.3) 6.4.0
  32 mageia:5                      : Ok   gcc (GCC) 4.9.2
  33 mageia:6                      : Ok   gcc (Mageia 5.4.0-5.mga6) 5.4.0
  34 opensuse:42.1                 : Ok   gcc (SUSE Linux) 4.8.5
  35 opensuse:42.2                 : Ok   gcc (SUSE Linux) 4.8.5
  36 opensuse:42.3                 : Ok   gcc (SUSE Linux) 4.8.5
  37 opensuse:tumbleweed           : Ok   gcc (SUSE Linux) 7.3.0
  38 oraclelinux:6                 : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)
  39 oraclelinux:7                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-16.0.3)
  40 ubuntu:12.04.5                : Ok   gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
  41 ubuntu:14.04.4                : Ok   gcc (Ubuntu 4.8.4-2ubuntu1~14.04.3) 4.8.4
  42 ubuntu:14.04.4-x-linaro-arm64 : Ok   aarch64-linux-gnu-gcc (Linaro GCC 5.4-2017.05) 5.4.1 20170404
  43 ubuntu:15.04                  : Ok   gcc (Ubuntu 4.9.2-10ubuntu13) 4.9.2
  44 ubuntu:16.04                  : Ok   gcc (Ubuntu 5.4.0-6ubuntu1~16.04.5) 5.4.0 20160609
  45 ubuntu:16.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  46 ubuntu:16.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  47 ubuntu:16.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  48 ubuntu:16.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.1) 5.4.0 20160609
  49 ubuntu:16.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  50 ubuntu:16.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  51 ubuntu:16.10                  : Ok   gcc (Ubuntu 6.2.0-5ubuntu12) 6.2.0 20161005
  52 ubuntu:17.04                  : Ok   gcc (Ubuntu 6.3.0-12ubuntu2) 6.3.0 20170406
  53 ubuntu:17.10                  : Ok   gcc (Ubuntu 7.2.0-8ubuntu3) 7.2.0
  54 ubuntu:18.04                  : Ok   gcc (Ubuntu 7.2.0-16ubuntu1) 7.2.0

  # uname -a
  Linux jouet 4.16.0-rc5-00086-gdf09348f78dc #1 SMP Fri Mar 16 09:46:40 -03 2018 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: Breakpoint accounting                                 : Skip
  22: Number of exit events of a simple workload            : Ok
  23: Software clock events period values                   : Ok
  24: Object code reading                                   : Ok
  25: Sample parsing                                        : Ok
  26: Use a dummy software event to keep tracking           : Ok
  27: Parse with no sample_id_all bit set                   : Ok
  28: Filter hist entries                                   : Ok
  29: Lookup mmap thread                                    : Ok
  30: Share thread mg                                       : Ok
  31: Sort output of hist entries                           : Ok
  32: Cumulate child hist entries                           : Ok
  33: Track with sched_switch                               : Ok
  34: Filter fds with revents mask in a fdarray             : Ok
  35: Add fd to a fdarray, making it autogrow               : Ok
  36: kmod_path__parse                                      : Ok
  37: Thread map                                            : Ok
  38: LLVM search and compile                               :
  38.1: Basic BPF llvm compile                              : Ok
  38.2: kbuild searching                                    : Ok
  38.3: Compile source for BPF prologue generation          : Ok
  38.4: Compile source for BPF relocation                   : Ok
  39: Session topology                                      : Ok
  40: BPF filter                                            :
  40.1: Basic BPF filtering                                 : Ok
  40.2: BPF pinning                                         : Ok
  40.3: BPF prologue generation                             : Ok
  40.4: BPF relocation checker                              : Ok
  41: Synthesize thread map                                 : Ok
  42: Remove thread map                                     : Ok
  43: Synthesize cpu map                                    : Ok
  44: Synthesize stat config                                : Ok
  45: Synthesize stat                                       : Ok
  46: Synthesize stat round                                 : Ok
  47: Synthesize attr update                                : Ok
  48: Event times                                           : Ok
  49: Read backward ring buffer                             : Ok
  50: Print cpu map                                         : Ok
  51: Probe SDT events                                      : Ok
  52: is_printable_array                                    : Ok
  53: Print bitmap                                          : Ok
  54: perf hooks                                            : Ok
  55: builtin clang support                                 : Skip (not compiled in)
  56: unit_number__scnprintf                                : Ok
  57: mem2node                                              : Ok
  58: x86 rdpmc                                             : Ok
  59: Convert perf time to TSC                              : Ok
  60: DWARF unwind                                          : Ok
  61: x86 instruction decoder - new instructions            : Ok
  62: Use vfs_getname probe to get syscall args filenames   : Ok
  63: Check open filename arg using perf trace + vfs_getname: Ok
  64: probe libc's inet_pton & backtrace it with ping       : Ok
  65: Add vfs_getname probe to get syscall args filenames   : Ok
  #

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

Re: [GIT PULL 00/14] 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 e2cf00c257f5bbc071b489b1dfbeaa30b6f12da6:
> 
>   Merge tag 'perf-core-for-mingo-4.11-20170126' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2017-01-26 16:20:59 +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-4.11-20170201
> 
> for you to fetch changes up to b05d1093987a78695766b71a2d723aa65b5c25c5:
> 
>   perf ftrace: Add ftrace.tracer config option (2017-01-31 16:20:09 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> New features:
> 
> . Allow configuring a 'perf ftrace' default --tracer (Taeung Song)
> 
> Infrastructure:
> 
> . Sync tools/arch/{powerpc,arm}/include/uapi/asm/kvm.h and
>        tools/arch/x86/include/asm/cpufeatures.h (Ingo Molnar)
> 
> . Add BPF program file system pinning APIs and respective
>   'perf test' entry (Joe Stringer)
> 
> . Make tools tree support 'make -s' (Josh Poimboeuf)
> 
> . Reference count maps in callchains, fixing SEGFAULT when
>   referencing maps after it is freed (Krister Johansen)
> 
> . Create for_each_event trace points iterator (Taeung Song)
> 
> . Do not consider an error not to have any perfconfig file
>   (Arnaldo Carvalho de Melo
> 
> . Propagate perf_config() errors (Arnaldo Carvalho de Melo)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (2):
>       perf config: Do not consider an error not to have any perfconfig file
>       perf tools: Propagate perf_config() errors
> 
> Ingo Molnar (1):
>       tools headers: Sync {tools/,}arch/powerpc/include/uapi/asm/kvm.h, {tools/,}arch/x86/include/asm/cpufeatures.h and {tools/,}arch/arm/include/uapi/asm/kvm.h
> 
> Joe Stringer (6):
>       tools lib bpf: Add BPF program pinning APIs
>       tools lib bpf: Add bpf_map__pin()
>       tools lib bpf: Add bpf_object__pin()
>       tools perf util: Make rm_rf(path) argument const
>       tools lib api fs: Add bpf_fs filesystem detector
>       perf test: Add libbpf pinning test
> 
> Josh Poimboeuf (1):
>       tools build: Add tools tree support for 'make -s'
> 
> Krister Johansen (1):
>       perf callchain: Reference count maps
> 
> Taeung Song (3):
>       perf ftrace: Remove needless code setting default tracer
>       perf tools: Create for_each_event macro for tracepoints iteration
>       perf ftrace: Add ftrace.tracer config option
> 
>  Makefile                                  |   6 +-
>  tools/arch/arm/include/uapi/asm/kvm.h     |   9 ++
>  tools/arch/powerpc/include/uapi/asm/kvm.h |   5 +
>  tools/arch/x86/include/asm/cpufeatures.h  |  11 ++
>  tools/build/Makefile.build                |  10 ++
>  tools/lib/api/fs/fs.c                     |  16 +++
>  tools/lib/api/fs/fs.h                     |   1 +
>  tools/lib/bpf/libbpf.c                    | 195 ++++++++++++++++++++++++++++++
>  tools/lib/bpf/libbpf.h                    |   5 +
>  tools/perf/builtin-ftrace.c               |  30 ++++-
>  tools/perf/builtin-help.c                 |   6 +-
>  tools/perf/builtin-kmem.c                 |   8 +-
>  tools/perf/builtin-record.c               |   4 +-
>  tools/perf/builtin-report.c               |   4 +-
>  tools/perf/builtin-top.c                  |   4 +-
>  tools/perf/perf.c                         |  15 ++-
>  tools/perf/tests/bpf.c                    |  42 ++++++-
>  tools/perf/util/callchain.c               |  27 ++++-
>  tools/perf/util/callchain.h               |   6 +
>  tools/perf/util/config.c                  |  23 ++--
>  tools/perf/util/data-convert-bt.c         |   7 +-
>  tools/perf/util/hist.c                    |  11 +-
>  tools/perf/util/intel-pt.c                |   4 +-
>  tools/perf/util/llvm-utils.c              |   4 +-
>  tools/perf/util/trace-event-info.c        |  38 +++---
>  tools/perf/util/util.c                    |   2 +-
>  tools/perf/util/util.h                    |   2 +-
>  tools/scripts/Makefile.include            |  12 +-
>  28 files changed, 446 insertions(+), 61 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/14] 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 e2cf00c257f5bbc071b489b1dfbeaa30b6f12da6:

  Merge tag 'perf-core-for-mingo-4.11-20170126' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2017-01-26 16:20:59 +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-4.11-20170201

for you to fetch changes up to b05d1093987a78695766b71a2d723aa65b5c25c5:

  perf ftrace: Add ftrace.tracer config option (2017-01-31 16:20:09 -0300)

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

New features:

. Allow configuring a 'perf ftrace' default --tracer (Taeung Song)

Infrastructure:

. Sync tools/arch/{powerpc,arm}/include/uapi/asm/kvm.h and
       tools/arch/x86/include/asm/cpufeatures.h (Ingo Molnar)

. Add BPF program file system pinning APIs and respective
  'perf test' entry (Joe Stringer)

. Make tools tree support 'make -s' (Josh Poimboeuf)

. Reference count maps in callchains, fixing SEGFAULT when
  referencing maps after it is freed (Krister Johansen)

. Create for_each_event trace points iterator (Taeung Song)

. Do not consider an error not to have any perfconfig file
  (Arnaldo Carvalho de Melo

. Propagate perf_config() errors (Arnaldo Carvalho de Melo)

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

----------------------------------------------------------------
Arnaldo Carvalho de Melo (2):
      perf config: Do not consider an error not to have any perfconfig file
      perf tools: Propagate perf_config() errors

Ingo Molnar (1):
      tools headers: Sync {tools/,}arch/powerpc/include/uapi/asm/kvm.h, {tools/,}arch/x86/include/asm/cpufeatures.h and {tools/,}arch/arm/include/uapi/asm/kvm.h

Joe Stringer (6):
      tools lib bpf: Add BPF program pinning APIs
      tools lib bpf: Add bpf_map__pin()
      tools lib bpf: Add bpf_object__pin()
      tools perf util: Make rm_rf(path) argument const
      tools lib api fs: Add bpf_fs filesystem detector
      perf test: Add libbpf pinning test

Josh Poimboeuf (1):
      tools build: Add tools tree support for 'make -s'

Krister Johansen (1):
      perf callchain: Reference count maps

Taeung Song (3):
      perf ftrace: Remove needless code setting default tracer
      perf tools: Create for_each_event macro for tracepoints iteration
      perf ftrace: Add ftrace.tracer config option

 Makefile                                  |   6 +-
 tools/arch/arm/include/uapi/asm/kvm.h     |   9 ++
 tools/arch/powerpc/include/uapi/asm/kvm.h |   5 +
 tools/arch/x86/include/asm/cpufeatures.h  |  11 ++
 tools/build/Makefile.build                |  10 ++
 tools/lib/api/fs/fs.c                     |  16 +++
 tools/lib/api/fs/fs.h                     |   1 +
 tools/lib/bpf/libbpf.c                    | 195 ++++++++++++++++++++++++++++++
 tools/lib/bpf/libbpf.h                    |   5 +
 tools/perf/builtin-ftrace.c               |  30 ++++-
 tools/perf/builtin-help.c                 |   6 +-
 tools/perf/builtin-kmem.c                 |   8 +-
 tools/perf/builtin-record.c               |   4 +-
 tools/perf/builtin-report.c               |   4 +-
 tools/perf/builtin-top.c                  |   4 +-
 tools/perf/perf.c                         |  15 ++-
 tools/perf/tests/bpf.c                    |  42 ++++++-
 tools/perf/util/callchain.c               |  27 ++++-
 tools/perf/util/callchain.h               |   6 +
 tools/perf/util/config.c                  |  23 ++--
 tools/perf/util/data-convert-bt.c         |   7 +-
 tools/perf/util/hist.c                    |  11 +-
 tools/perf/util/intel-pt.c                |   4 +-
 tools/perf/util/llvm-utils.c              |   4 +-
 tools/perf/util/trace-event-info.c        |  38 +++---
 tools/perf/util/util.c                    |   2 +-
 tools/perf/util/util.h                    |   2 +-
 tools/scripts/Makefile.include            |  12 +-
 28 files changed, 446 insertions(+), 61 deletions(-)

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.

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 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 debian:experimental-x-arm64: Ok
  11 debian:experimental-x-mips: Ok
  12 debian:experimental-x-mips64: Ok
  13 debian:experimental-x-mipsel: Ok
  14 fedora:20: Ok
  15 fedora:21: Ok
  16 fedora:22: Ok
  17 fedora:23: Ok
  18 fedora:24: Ok
  19 fedora:24-x-ARC-uClibc: Ok
  20 fedora:25: Ok
  21 fedora:rawhide: Ok
  22 mageia:5: Ok
  23 opensuse:13.2: Ok
  24 opensuse:42.1: Ok
  25 opensuse:tumbleweed: Ok
  26 ubuntu:12.04.5: Ok
  27 ubuntu:14.04.4-x-linaro-arm64: Ok
  28 ubuntu:15.10: Ok
  29 ubuntu:16.04: Ok
  30 ubuntu:16.04-x-arm: Ok
  31 ubuntu:16.04-x-arm64: Ok
  32 ubuntu:16.04-x-powerpc: Ok
  33 ubuntu:16.04-x-powerpc64: Ok
  34 ubuntu:16.04-x-powerpc64el: Ok
  35 ubuntu:16.04-x-s390: Ok
  36 ubuntu:16.10: Ok
  #

  # uname -a
  Linux jouet 4.9.6-200.fc25.x86_64 #1 SMP Thu Jan 26 10:17:45 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
  
  $ perf stat make -C tools/perf build-test
  make: Entering directory '/home/acme/git/linux/tools/perf'
  - tarpkg: ./tests/perf-targz-src-pkg .
         make_with_clangllvm_O: make LIBCLANGLLVM=1
                  make_debug_O: make DEBUG=1
   make_install_prefix_slash_O: make install prefix=/tmp/krava/
                    make_doc_O: make doc
  make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
           make_no_libpython_O: make NO_LIBPYTHON=1
               make_no_slang_O: make NO_SLANG=1
              make_clean_all_O: make clean all
             make_no_libperl_O: make NO_LIBPERL=1
         make_install_prefix_O: make install prefix=/tmp/krava
                   make_help_O: make help
            make_no_auxtrace_O: make NO_AUXTRACE=1
                   make_tags_O: make tags
                 make_perf_o_O: make perf.o
                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_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
              make_no_libelf_O: make NO_LIBELF=1
           make_no_libunwind_O: make NO_LIBUNWIND=1
                 make_static_O: make LDFLAGS=-static
             make_no_libnuma_O: make NO_LIBNUMA=1
             make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
            make_no_demangle_O: make NO_DEMANGLE=1
                make_no_newt_O: make NO_NEWT=1
           make_no_libbionic_O: make NO_LIBBIONIC=1
                   make_pure_O: make
       make_util_pmu_bison_o_O: make util/pmu-bison.o
                make_no_gtk2_O: make NO_GTK2=1
             make_util_map_o_O: make util/map.o
            make_no_libaudit_O: make NO_LIBAUDIT=1
        make_with_babeltrace_O: make LIBBABELTRACE=1
            make_install_bin_O: make install-bin
           make_no_backtrace_O: make NO_BACKTRACE=1
              make_no_libbpf_O: make NO_LIBBPF=1
                make_install_O: make install
  OK
  make: Leaving directory '/home/acme/git/linux/tools/perf'
  $

Re: [GIT PULL 00/14] 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 9243ae5b28d02dc7d71a4f00c981ef6feaede3f1:
> 
>   Merge tag 'perf-core-for-mingo-20160415' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-04-16 11:09:57 +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-20160419
> 
> for you to fetch changes up to 6566feafb4dba4eef30a9c0b25e6f49f996178b6:
> 
>   perf test: Add missing verbose output explaining the reason for failure (2016-04-19 12:39:36 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> Build fixes:
> 
> - Fix 'perf trace' build when DWARF unwind isn't available (Arnaldo Carvalho de Melo)
> 
> - Remove x86 references from arch-neutral Build, fixing it in !x86 arches,
>   reported as breaking the build for powerpc64le in linux-next (Arnaldo Carvalho de Melo)
> 
> Infrastructure:
> 
> - Do memset() variable 'st' using the correct size in the jit code (Colin Ian King)
> 
> - Fix postgresql ubuntu 'perf script' install instructions (Chris Phlipot)
> 
> - Use callchain_param more thoroughly when checking how callchains were
>   configured, eventually will be the only way to look for callchain parameters
>   (Arnaldo Carvalho de Melo)
> 
> - Fix some issues in the 'perf test kallsyms' entry (Arnaldo Carvalho de Melo)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (12):
>       perf trace: Fix build when DWARF unwind isn't available
>       perf evsel: Add missign class prefix to has_branch_stack method
>       perf script: Check sample->callchain before using it
>       perf callchain: Set callchain_param.enabled when parsing --call-graph
>       perf report: Use callchain_param.enabled instead of tool specific knob
>       perf tools: Ditch record_opts.callgraph_set
>       perf hists browser: Fold two consecutive symbol_conf.use_callchain ifs
>       perf top: Use callchain_param.enabled instead of symbol_conf.use_callchain
>       perf build: Remove x86 references from arch-neutral Build
>       perf symbols: Allow loading kallsyms without considering kcore files
>       perf test: Ignore kcore files in the "vmlinux matches kallsyms" test
>       perf test: Add missing verbose output explaining the reason for failure
> 
> Chris Phlipot (1):
>       perf script: Fix postgresql ubuntu install instructions
> 
> Colin Ian King (1):
>       perf jit: memset() variable 'st' using the correct size
> 
>  tools/perf/builtin-record.c                       | 14 ++++++-------
>  tools/perf/builtin-report.c                       | 11 +++++-----
>  tools/perf/builtin-script.c                       |  2 +-
>  tools/perf/builtin-top.c                          | 25 +++++++++++------------
>  tools/perf/builtin-trace.c                        | 10 ++++-----
>  tools/perf/perf.h                                 |  1 -
>  tools/perf/scripts/python/export-to-postgresql.py |  5 ++---
>  tools/perf/tests/vmlinux-kallsyms.c               | 11 +++++++++-
>  tools/perf/ui/browsers/hists.c                    |  5 ++---
>  tools/perf/util/Build                             |  4 ----
>  tools/perf/util/callchain.c                       |  2 ++
>  tools/perf/util/evsel.h                           |  2 +-
>  tools/perf/util/jitdump.c                         |  4 ++--
>  tools/perf/util/machine.c                         | 14 +++++++++----
>  tools/perf/util/machine.h                         |  2 ++
>  tools/perf/util/session.c                         |  4 ++--
>  tools/perf/util/symbol.c                          | 12 ++++++++---
>  tools/perf/util/symbol.h                          |  2 ++
>  18 files changed, 74 insertions(+), 56 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/14] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo


The following changes since commit 9243ae5b28d02dc7d71a4f00c981ef6feaede3f1:

  Merge tag 'perf-core-for-mingo-20160415' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-04-16 11:09:57 +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-20160419

for you to fetch changes up to 6566feafb4dba4eef30a9c0b25e6f49f996178b6:

  perf test: Add missing verbose output explaining the reason for failure (2016-04-19 12:39:36 -0300)

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

Build fixes:

- Fix 'perf trace' build when DWARF unwind isn't available (Arnaldo Carvalho de Melo)

- Remove x86 references from arch-neutral Build, fixing it in !x86 arches,
  reported as breaking the build for powerpc64le in linux-next (Arnaldo Carvalho de Melo)

Infrastructure:

- Do memset() variable 'st' using the correct size in the jit code (Colin Ian King)

- Fix postgresql ubuntu 'perf script' install instructions (Chris Phlipot)

- Use callchain_param more thoroughly when checking how callchains were
  configured, eventually will be the only way to look for callchain parameters
  (Arnaldo Carvalho de Melo)

- Fix some issues in the 'perf test kallsyms' entry (Arnaldo Carvalho de Melo)

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

----------------------------------------------------------------
Arnaldo Carvalho de Melo (12):
      perf trace: Fix build when DWARF unwind isn't available
      perf evsel: Add missign class prefix to has_branch_stack method
      perf script: Check sample->callchain before using it
      perf callchain: Set callchain_param.enabled when parsing --call-graph
      perf report: Use callchain_param.enabled instead of tool specific knob
      perf tools: Ditch record_opts.callgraph_set
      perf hists browser: Fold two consecutive symbol_conf.use_callchain ifs
      perf top: Use callchain_param.enabled instead of symbol_conf.use_callchain
      perf build: Remove x86 references from arch-neutral Build
      perf symbols: Allow loading kallsyms without considering kcore files
      perf test: Ignore kcore files in the "vmlinux matches kallsyms" test
      perf test: Add missing verbose output explaining the reason for failure

Chris Phlipot (1):
      perf script: Fix postgresql ubuntu install instructions

Colin Ian King (1):
      perf jit: memset() variable 'st' using the correct size

 tools/perf/builtin-record.c                       | 14 ++++++-------
 tools/perf/builtin-report.c                       | 11 +++++-----
 tools/perf/builtin-script.c                       |  2 +-
 tools/perf/builtin-top.c                          | 25 +++++++++++------------
 tools/perf/builtin-trace.c                        | 10 ++++-----
 tools/perf/perf.h                                 |  1 -
 tools/perf/scripts/python/export-to-postgresql.py |  5 ++---
 tools/perf/tests/vmlinux-kallsyms.c               | 11 +++++++++-
 tools/perf/ui/browsers/hists.c                    |  5 ++---
 tools/perf/util/Build                             |  4 ----
 tools/perf/util/callchain.c                       |  2 ++
 tools/perf/util/evsel.h                           |  2 +-
 tools/perf/util/jitdump.c                         |  4 ++--
 tools/perf/util/machine.c                         | 14 +++++++++----
 tools/perf/util/machine.h                         |  2 ++
 tools/perf/util/session.c                         |  4 ++--
 tools/perf/util/symbol.c                          | 12 ++++++++---
 tools/perf/util/symbol.h                          |  2 ++
 18 files changed, 74 insertions(+), 56 deletions(-)

Re: [GIT PULL 00/14] perf/core improvements and fixes

[Ingo Molnar]

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

> From: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> Hi Ingo,
> 
> 	Please consider pulling, will continue processing the backlog tomorrow,
> 
> Thanks,
> 
> - Arnaldo
> 
> The following changes since commit f1ad44884a4c421ceaa9a4a8242aeeee6f686670:
> 
>   perf/x86: Remove old MSR perf tracing code (2015-12-06 12:56:14 +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
> 
> for you to fetch changes up to cfef25b8daf7e4b49c84e174a904af9d89dc7c46:
> 
>   perf annotate: ARM support (2015-12-07 18:13:00 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible:
> 
> - Fixes and improvements for supporting annotating ARM binaries, support ARM
>   call and jump instructions, more work needed to have arch specific stuff
>   separated into tools/perf/arch/*/annotate/ (Russell King)
> 
> - Fix several 'perf test' entries broken by recent perf/core changes (Jiri Olsa)
> 
> Infrastructure:
> 
> - Consolidate perf_ev{list,sel}__{enable,disable}() calls (Jiri Olsa)
> 
> - Pass correct string to dso__adjust_kmod_long_name (Wang Nan)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Jiri Olsa (12):
>       perf test: Use machine__new_host in dwarf unwind test
>       perf test: Use machine__new_host in mmap thread lookup test
>       perf test: Use machine__new_host in mmap thread code reading test
>       perf test: Fix cpus and thread maps reference in error path
>       perf test: Prevent using bpf-output event in round trip name test
>       perf test: Create kernel maps properly for hist entries test
>       perf evsel: Use event maps directly in perf_evsel__enable
>       perf evsel: Introduce disable() method
>       perf evlist: Factor perf_evlist__(enable|disable) functions
>       perf stat: Use perf_evlist__enable in handle_initial_delay
>       perf stat: Create events as disabled
>       perf stat: Move enable_on_exec setup under earlier code
> 
> Russell King (1):
>       perf annotate: ARM support
> 
> Wang Nan (1):
>       perf machine: Pass correct string to dso__adjust_kmod_long_name
> 
>  tools/perf/builtin-stat.c               | 44 ++++++++++++++++++++-------------
>  tools/perf/tests/code-reading.c         | 14 +++++++----
>  tools/perf/tests/dwarf-unwind.c         |  8 ++----
>  tools/perf/tests/evsel-roundtrip-name.c |  3 ++-
>  tools/perf/tests/hists_common.c         |  5 ++++
>  tools/perf/tests/mmap-thread-lookup.c   |  6 ++---
>  tools/perf/util/annotate.c              | 23 +++++++++++++++++
>  tools/perf/util/evlist.c                | 32 ++++++------------------
>  tools/perf/util/evsel.c                 | 15 ++++++++++-
>  tools/perf/util/evsel.h                 |  3 ++-
>  tools/perf/util/machine.c               |  2 +-
>  11 files changed, 95 insertions(+), 60 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/14] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

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

Hi Ingo,

	Please consider pulling, will continue processing the backlog tomorrow,

Thanks,

- Arnaldo

The following changes since commit f1ad44884a4c421ceaa9a4a8242aeeee6f686670:

  perf/x86: Remove old MSR perf tracing code (2015-12-06 12:56:14 +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

for you to fetch changes up to cfef25b8daf7e4b49c84e174a904af9d89dc7c46:

  perf annotate: ARM support (2015-12-07 18:13:00 -0300)

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

User visible:

- Fixes and improvements for supporting annotating ARM binaries, support ARM
  call and jump instructions, more work needed to have arch specific stuff
  separated into tools/perf/arch/*/annotate/ (Russell King)

- Fix several 'perf test' entries broken by recent perf/core changes (Jiri Olsa)

Infrastructure:

- Consolidate perf_ev{list,sel}__{enable,disable}() calls (Jiri Olsa)

- Pass correct string to dso__adjust_kmod_long_name (Wang Nan)

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

----------------------------------------------------------------
Jiri Olsa (12):
      perf test: Use machine__new_host in dwarf unwind test
      perf test: Use machine__new_host in mmap thread lookup test
      perf test: Use machine__new_host in mmap thread code reading test
      perf test: Fix cpus and thread maps reference in error path
      perf test: Prevent using bpf-output event in round trip name test
      perf test: Create kernel maps properly for hist entries test
      perf evsel: Use event maps directly in perf_evsel__enable
      perf evsel: Introduce disable() method
      perf evlist: Factor perf_evlist__(enable|disable) functions
      perf stat: Use perf_evlist__enable in handle_initial_delay
      perf stat: Create events as disabled
      perf stat: Move enable_on_exec setup under earlier code

Russell King (1):
      perf annotate: ARM support

Wang Nan (1):
      perf machine: Pass correct string to dso__adjust_kmod_long_name

 tools/perf/builtin-stat.c               | 44 ++++++++++++++++++++-------------
 tools/perf/tests/code-reading.c         | 14 +++++++----
 tools/perf/tests/dwarf-unwind.c         |  8 ++----
 tools/perf/tests/evsel-roundtrip-name.c |  3 ++-
 tools/perf/tests/hists_common.c         |  5 ++++
 tools/perf/tests/mmap-thread-lookup.c   |  6 ++---
 tools/perf/util/annotate.c              | 23 +++++++++++++++++
 tools/perf/util/evlist.c                | 32 ++++++------------------
 tools/perf/util/evsel.c                 | 15 ++++++++++-
 tools/perf/util/evsel.h                 |  3 ++-
 tools/perf/util/machine.c               |  2 +-
 11 files changed, 95 insertions(+), 60 deletions(-)

Re: [GIT PULL 00/14] perf/core improvements and fixes

[Ingo Molnar]

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

> From: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> Hi Ingo,
> 
> 	This comes with part of Adrian's latest pull req to support Intel PT
> on tools/perf, with enough to testing it, see the example in the latest
> patch in this series.
> 
> 	More wore patches for BTS and further Intel PT goodies will come soon,
> after some issues with resolving symbols get fixed. This was something that
> wasn't present last time I tested the BTS bits, so I think we should resolve
> it soon, but while we do it, these patches should move things forward wrt
> being able to test the stuff already in the kernel and to have access to this
> hardware feature using perf.
> 
> 	Please consider applying,
> 
> - Arnaldo
> 
> The following changes since commit a897b5f0393a8a05d230c9248dc5324fb30720a0:
> 
>   Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-08-13 09:23:53 +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 5efb1d5489520ce72232bbc28e9156f0ebddc44e:
> 
>   perf tools: Take Intel PT into use (2015-08-17 11:11:37 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> - Support Intel PT in several tools, enabling the use of the processor trace
>   feature introduced in Intel Broadwell processors: (Adrian Hunter)
> 
>  # dmesg | grep Performance
>  # [0.188477] Performance Events: PEBS fmt2+, 16-deep LBR, Broadwell events, full-width counters, Intel PMU driver.
>  # perf record -e intel_pt//u -a sleep 1
>  [ perf record: Woken up 1 times to write data ]
>  [ perf record: Captured and wrote 0.216 MB perf.data ]
>  # perf script # then navigate in the tool output to some area, like this one:
>  184 1030 dl_main (/usr/lib64/ld-2.17.so) => 7f21ba661440 dl_main (/usr/lib64/ld-2.17.so)
>  185 1457 dl_main (/usr/lib64/ld-2.17.so) => 7f21ba669f10 _dl_new_object (/usr/lib64/ld-2.17.so)
>  186 9f37 _dl_new_object (/usr/lib64/ld-2.17.so) => 7f21ba677b90 strlen (/usr/lib64/ld-2.17.so)
>  187 7ba3 strlen (/usr/lib64/ld-2.17.so) => 7f21ba677c75 strlen (/usr/lib64/ld-2.17.so)
>  188 7c78 strlen (/usr/lib64/ld-2.17.so) => 7f21ba669f3c _dl_new_object (/usr/lib64/ld-2.17.so)
>  189 9f8a _dl_new_object (/usr/lib64/ld-2.17.so) => 7f21ba65fab0 calloc@plt (/usr/lib64/ld-2.17.so)
>  190 fab0 calloc@plt (/usr/lib64/ld-2.17.so) => 7f21ba675e70 calloc (/usr/lib64/ld-2.17.so)
>  191 5e87 calloc (/usr/lib64/ld-2.17.so) => 7f21ba65fa90 malloc@plt (/usr/lib64/ld-2.17.so)
>  192 fa90 malloc@plt (/usr/lib64/ld-2.17.so) => 7f21ba675e60 malloc (/usr/lib64/ld-2.17.so)
>  193 5e68 malloc (/usr/lib64/ld-2.17.so) => 7f21ba65fa80 __libc_memalign@plt (/usr/lib64/ld-2.17.so)
>  194 fa80 __libc_memalign@plt (/usr/lib64/ld-2.17.so) => 7f21ba675d50 __libc_memalign (/usr/lib64/ld-2.17.so)
>  195 5d63 __libc_memalign (/usr/lib64/ld-2.17.so) => 7f21ba675e20 __libc_memalign (/usr/lib64/ld-2.17.so)
>  196 5e40 __libc_memalign (/usr/lib64/ld-2.17.so) => 7f21ba675d73 __libc_memalign (/usr/lib64/ld-2.17.so)
>  197 5d97 __libc_memalign (/usr/lib64/ld-2.17.so) => 7f21ba675e18 __libc_memalign (/usr/lib64/ld-2.17.so)
>  198 5e1e __libc_memalign (/usr/lib64/ld-2.17.so) => 7f21ba675df9 __libc_memalign (/usr/lib64/ld-2.17.so)
>  199 5e10 __libc_memalign (/usr/lib64/ld-2.17.so) => 7f21ba669f8f _dl_new_object (/usr/lib64/ld-2.17.so)
>  200 9fc2 _dl_new_object (/usr/lib64/ld-2.17.so) =>  7f21ba678e70 memcpy (/usr/lib64/ld-2.17.so)
>  201 8e8c memcpy (/usr/lib64/ld-2.17.so) => 7f21ba678ea0 memcpy (/usr/lib64/ld-2.17.so)
> 
> - Fix annotation of vdso (Adrian Hunter)
> 
> - Fix DWARF callchains in 'perf script' (Jiri Olsa)
> 
> - Fix adding probes in kernel syscalls and listing which variables can be
>   collected at kernel syscall function lines (Masami Hiramatsu)
> 
> Build Fixes:
> 
> - Fix 32-bit compilation error in util/annotate.c (Adrian Hunter)
> 
> - Support static linking with libdw on Fedora 22 (Andi Kleen)
> 
> Infrastructure:
> 
> - Add a helper function to probe whether cpu-wide tracing is possible (Adrian Hunter)
> 
> - Move vfs_getname storage to per thread area in 'perf trace' (Arnaldo Carvalho de Melo)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Adrian Hunter (10):
>       perf annotate: Fix 32-bit compilation error in util/annotate.c
>       perf symbols: Fix annotation of vdso
>       perf tools: Add a helper function to probe whether cpu-wide tracing is possible
>       perf auxtrace: Add Intel PT as an AUX area tracing type
>       perf tools: Add Intel PT packet decoder
>       perf tools: Add Intel PT instruction decoder
>       perf tools: Add Intel PT log
>       perf tools: Add Intel PT decoder
>       perf tools: Add Intel PT support
>       perf tools: Take Intel PT into use
> 
> Andi Kleen (1):
>       perf tools: Support static linking with libdw
> 
> Arnaldo Carvalho de Melo (1):
>       perf trace: Move vfs_getname storage to per thread area
> 
> Jiri Olsa (1):
>       perf script: Initialize callchain_param.record_mode
> 
> Masami Hiramatsu (1):
>       perf probe: Fix to add missed brace around if block
> 
>  tools/build/Makefile.build                         |    2 +
>  tools/build/feature/Makefile                       |    7 +-
>  tools/perf/.gitignore                              |    1 +
>  tools/perf/Documentation/intel-pt.txt              |  588 ++++++
>  tools/perf/Makefile.perf                           |   12 +-
>  tools/perf/arch/x86/util/Build                     |    4 +
>  tools/perf/arch/x86/util/auxtrace.c                |   38 +
>  tools/perf/arch/x86/util/intel-pt.c                |  752 ++++++++
>  tools/perf/arch/x86/util/pmu.c                     |   15 +
>  tools/perf/builtin-script.c                        |   17 +
>  tools/perf/builtin-trace.c                         |   38 +-
>  tools/perf/config/Makefile                         |    6 +-
>  tools/perf/util/Build                              |    2 +
>  tools/perf/util/annotate.c                         |    4 +-
>  tools/perf/util/auxtrace.c                         |    6 +-
>  tools/perf/util/auxtrace.h                         |    1 +
>  tools/perf/util/dwarf-aux.c                        |    3 +-
>  tools/perf/util/evlist.h                           |    1 +
>  tools/perf/util/intel-pt-decoder/Build             |   11 +
>  .../util/intel-pt-decoder/gen-insn-attr-x86.awk    |  386 ++++
>  tools/perf/util/intel-pt-decoder/inat.c            |   96 +
>  tools/perf/util/intel-pt-decoder/inat.h            |  221 +++
>  tools/perf/util/intel-pt-decoder/insn.c            |  594 ++++++
>  tools/perf/util/intel-pt-decoder/insn.h            |  201 ++
>  .../perf/util/intel-pt-decoder/intel-pt-decoder.c  | 1816 +++++++++++++++++++
>  .../perf/util/intel-pt-decoder/intel-pt-decoder.h  |  104 ++
>  .../util/intel-pt-decoder/intel-pt-insn-decoder.c  |  246 +++
>  .../util/intel-pt-decoder/intel-pt-insn-decoder.h  |   65 +
>  tools/perf/util/intel-pt-decoder/intel-pt-log.c    |  155 ++
>  tools/perf/util/intel-pt-decoder/intel-pt-log.h    |   52 +
>  .../util/intel-pt-decoder/intel-pt-pkt-decoder.c   |  400 ++++
>  .../util/intel-pt-decoder/intel-pt-pkt-decoder.h   |   64 +
>  .../perf/util/intel-pt-decoder/x86-opcode-map.txt  |  970 ++++++++++
>  tools/perf/util/intel-pt.c                         | 1911 ++++++++++++++++++++
>  tools/perf/util/intel-pt.h                         |   51 +
>  tools/perf/util/pmu.c                              |    4 +-
>  tools/perf/util/record.c                           |   24 +
>  tools/perf/util/symbol-elf.c                       |   11 +
>  38 files changed, 8858 insertions(+), 21 deletions(-)
>  create mode 100644 tools/perf/Documentation/intel-pt.txt
>  create mode 100644 tools/perf/arch/x86/util/auxtrace.c
>  create mode 100644 tools/perf/arch/x86/util/intel-pt.c
>  create mode 100644 tools/perf/arch/x86/util/pmu.c
>  create mode 100644 tools/perf/util/intel-pt-decoder/Build
>  create mode 100644 tools/perf/util/intel-pt-decoder/gen-insn-attr-x86.awk
>  create mode 100644 tools/perf/util/intel-pt-decoder/inat.c
>  create mode 100644 tools/perf/util/intel-pt-decoder/inat.h
>  create mode 100644 tools/perf/util/intel-pt-decoder/insn.c
>  create mode 100644 tools/perf/util/intel-pt-decoder/insn.h
>  create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
>  create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-decoder.h
>  create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.c
>  create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.h
>  create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-log.c
>  create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-log.h
>  create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c
>  create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.h
>  create mode 100644 tools/perf/util/intel-pt-decoder/x86-opcode-map.txt
>  create mode 100644 tools/perf/util/intel-pt.c
>  create mode 100644 tools/perf/util/intel-pt.h

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/14] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

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

Hi Ingo,

	This comes with part of Adrian's latest pull req to support Intel PT
on tools/perf, with enough to testing it, see the example in the latest
patch in this series.

	More wore patches for BTS and further Intel PT goodies will come soon,
after some issues with resolving symbols get fixed. This was something that
wasn't present last time I tested the BTS bits, so I think we should resolve
it soon, but while we do it, these patches should move things forward wrt
being able to test the stuff already in the kernel and to have access to this
hardware feature using perf.

	Please consider applying,

- Arnaldo

The following changes since commit a897b5f0393a8a05d230c9248dc5324fb30720a0:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-08-13 09:23:53 +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 5efb1d5489520ce72232bbc28e9156f0ebddc44e:

  perf tools: Take Intel PT into use (2015-08-17 11:11:37 -0300)

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

- Support Intel PT in several tools, enabling the use of the processor trace
  feature introduced in Intel Broadwell processors: (Adrian Hunter)

 # dmesg | grep Performance
 # [0.188477] Performance Events: PEBS fmt2+, 16-deep LBR, Broadwell events, full-width counters, Intel PMU driver.
 # perf record -e intel_pt//u -a sleep 1
 [ perf record: Woken up 1 times to write data ]
 [ perf record: Captured and wrote 0.216 MB perf.data ]
 # perf script # then navigate in the tool output to some area, like this one:
 184 1030 dl_main (/usr/lib64/ld-2.17.so) => 7f21ba661440 dl_main (/usr/lib64/ld-2.17.so)
 185 1457 dl_main (/usr/lib64/ld-2.17.so) => 7f21ba669f10 _dl_new_object (/usr/lib64/ld-2.17.so)
 186 9f37 _dl_new_object (/usr/lib64/ld-2.17.so) => 7f21ba677b90 strlen (/usr/lib64/ld-2.17.so)
 187 7ba3 strlen (/usr/lib64/ld-2.17.so) => 7f21ba677c75 strlen (/usr/lib64/ld-2.17.so)
 188 7c78 strlen (/usr/lib64/ld-2.17.so) => 7f21ba669f3c _dl_new_object (/usr/lib64/ld-2.17.so)
 189 9f8a _dl_new_object (/usr/lib64/ld-2.17.so) => 7f21ba65fab0 calloc@plt (/usr/lib64/ld-2.17.so)
 190 fab0 calloc@plt (/usr/lib64/ld-2.17.so) => 7f21ba675e70 calloc (/usr/lib64/ld-2.17.so)
 191 5e87 calloc (/usr/lib64/ld-2.17.so) => 7f21ba65fa90 malloc@plt (/usr/lib64/ld-2.17.so)
 192 fa90 malloc@plt (/usr/lib64/ld-2.17.so) => 7f21ba675e60 malloc (/usr/lib64/ld-2.17.so)
 193 5e68 malloc (/usr/lib64/ld-2.17.so) => 7f21ba65fa80 __libc_memalign@plt (/usr/lib64/ld-2.17.so)
 194 fa80 __libc_memalign@plt (/usr/lib64/ld-2.17.so) => 7f21ba675d50 __libc_memalign (/usr/lib64/ld-2.17.so)
 195 5d63 __libc_memalign (/usr/lib64/ld-2.17.so) => 7f21ba675e20 __libc_memalign (/usr/lib64/ld-2.17.so)
 196 5e40 __libc_memalign (/usr/lib64/ld-2.17.so) => 7f21ba675d73 __libc_memalign (/usr/lib64/ld-2.17.so)
 197 5d97 __libc_memalign (/usr/lib64/ld-2.17.so) => 7f21ba675e18 __libc_memalign (/usr/lib64/ld-2.17.so)
 198 5e1e __libc_memalign (/usr/lib64/ld-2.17.so) => 7f21ba675df9 __libc_memalign (/usr/lib64/ld-2.17.so)
 199 5e10 __libc_memalign (/usr/lib64/ld-2.17.so) => 7f21ba669f8f _dl_new_object (/usr/lib64/ld-2.17.so)
 200 9fc2 _dl_new_object (/usr/lib64/ld-2.17.so) =>  7f21ba678e70 memcpy (/usr/lib64/ld-2.17.so)
 201 8e8c memcpy (/usr/lib64/ld-2.17.so) => 7f21ba678ea0 memcpy (/usr/lib64/ld-2.17.so)

- Fix annotation of vdso (Adrian Hunter)

- Fix DWARF callchains in 'perf script' (Jiri Olsa)

- Fix adding probes in kernel syscalls and listing which variables can be
  collected at kernel syscall function lines (Masami Hiramatsu)

Build Fixes:

- Fix 32-bit compilation error in util/annotate.c (Adrian Hunter)

- Support static linking with libdw on Fedora 22 (Andi Kleen)

Infrastructure:

- Add a helper function to probe whether cpu-wide tracing is possible (Adrian Hunter)

- Move vfs_getname storage to per thread area in 'perf trace' (Arnaldo Carvalho de Melo)

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

----------------------------------------------------------------
Adrian Hunter (10):
      perf annotate: Fix 32-bit compilation error in util/annotate.c
      perf symbols: Fix annotation of vdso
      perf tools: Add a helper function to probe whether cpu-wide tracing is possible
      perf auxtrace: Add Intel PT as an AUX area tracing type
      perf tools: Add Intel PT packet decoder
      perf tools: Add Intel PT instruction decoder
      perf tools: Add Intel PT log
      perf tools: Add Intel PT decoder
      perf tools: Add Intel PT support
      perf tools: Take Intel PT into use

Andi Kleen (1):
      perf tools: Support static linking with libdw

Arnaldo Carvalho de Melo (1):
      perf trace: Move vfs_getname storage to per thread area

Jiri Olsa (1):
      perf script: Initialize callchain_param.record_mode

Masami Hiramatsu (1):
      perf probe: Fix to add missed brace around if block

 tools/build/Makefile.build                         |    2 +
 tools/build/feature/Makefile                       |    7 +-
 tools/perf/.gitignore                              |    1 +
 tools/perf/Documentation/intel-pt.txt              |  588 ++++++
 tools/perf/Makefile.perf                           |   12 +-
 tools/perf/arch/x86/util/Build                     |    4 +
 tools/perf/arch/x86/util/auxtrace.c                |   38 +
 tools/perf/arch/x86/util/intel-pt.c                |  752 ++++++++
 tools/perf/arch/x86/util/pmu.c                     |   15 +
 tools/perf/builtin-script.c                        |   17 +
 tools/perf/builtin-trace.c                         |   38 +-
 tools/perf/config/Makefile                         |    6 +-
 tools/perf/util/Build                              |    2 +
 tools/perf/util/annotate.c                         |    4 +-
 tools/perf/util/auxtrace.c                         |    6 +-
 tools/perf/util/auxtrace.h                         |    1 +
 tools/perf/util/dwarf-aux.c                        |    3 +-
 tools/perf/util/evlist.h                           |    1 +
 tools/perf/util/intel-pt-decoder/Build             |   11 +
 .../util/intel-pt-decoder/gen-insn-attr-x86.awk    |  386 ++++
 tools/perf/util/intel-pt-decoder/inat.c            |   96 +
 tools/perf/util/intel-pt-decoder/inat.h            |  221 +++
 tools/perf/util/intel-pt-decoder/insn.c            |  594 ++++++
 tools/perf/util/intel-pt-decoder/insn.h            |  201 ++
 .../perf/util/intel-pt-decoder/intel-pt-decoder.c  | 1816 +++++++++++++++++++
 .../perf/util/intel-pt-decoder/intel-pt-decoder.h  |  104 ++
 .../util/intel-pt-decoder/intel-pt-insn-decoder.c  |  246 +++
 .../util/intel-pt-decoder/intel-pt-insn-decoder.h  |   65 +
 tools/perf/util/intel-pt-decoder/intel-pt-log.c    |  155 ++
 tools/perf/util/intel-pt-decoder/intel-pt-log.h    |   52 +
 .../util/intel-pt-decoder/intel-pt-pkt-decoder.c   |  400 ++++
 .../util/intel-pt-decoder/intel-pt-pkt-decoder.h   |   64 +
 .../perf/util/intel-pt-decoder/x86-opcode-map.txt  |  970 ++++++++++
 tools/perf/util/intel-pt.c                         | 1911 ++++++++++++++++++++
 tools/perf/util/intel-pt.h                         |   51 +
 tools/perf/util/pmu.c                              |    4 +-
 tools/perf/util/record.c                           |   24 +
 tools/perf/util/symbol-elf.c                       |   11 +
 38 files changed, 8858 insertions(+), 21 deletions(-)
 create mode 100644 tools/perf/Documentation/intel-pt.txt
 create mode 100644 tools/perf/arch/x86/util/auxtrace.c
 create mode 100644 tools/perf/arch/x86/util/intel-pt.c
 create mode 100644 tools/perf/arch/x86/util/pmu.c
 create mode 100644 tools/perf/util/intel-pt-decoder/Build
 create mode 100644 tools/perf/util/intel-pt-decoder/gen-insn-attr-x86.awk
 create mode 100644 tools/perf/util/intel-pt-decoder/inat.c
 create mode 100644 tools/perf/util/intel-pt-decoder/inat.h
 create mode 100644 tools/perf/util/intel-pt-decoder/insn.c
 create mode 100644 tools/perf/util/intel-pt-decoder/insn.h
 create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
 create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-decoder.h
 create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.c
 create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.h
 create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-log.c
 create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-log.h
 create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c
 create mode 100644 tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.h
 create mode 100644 tools/perf/util/intel-pt-decoder/x86-opcode-map.txt
 create mode 100644 tools/perf/util/intel-pt.c
 create mode 100644 tools/perf/util/intel-pt.h

Re: [GIT PULL 00/14] perf/core improvements and fixes

[Ingo Molnar]

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

> Hi Ingo,
> 
> 	Please consider applying,
> 
> - Arnaldo
> 
> The following changes since commit f1942b96b4b44c1ab0e0b82fef93ba7e1fada7af:
> 
>   Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-05-28 11:09:22 +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 ed426915900db3c58c410b8b38f6ff0e46bf6c96:
> 
>   perf tools: Make Ctrl-C stop processing on TUI (2015-05-29 12:49:00 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible:
> 
> - Make Ctrl-C stop processing on TUI, allowing interrupting the load of big
>   perf.data files (Namhyung Kim)
> 
> - Fix 'perf annotate' -i option, which is currently ignored (Martin Liška)
> 
> - Add ARM64 perf_regs_load to support libunwind and enable testing (Wang Nan)
> 
> Infrastructure:
> 
> - Fix thread ref-counting in db-export (Adrian Hunter)
> 
> - Fix compiler warning about may be accessing uninitialized (Arnaldo Carvalho de Melo)
> 
> - No need to have two lists for user and kernel DSOs, unify them (Arnaldo Carvalho de Melo)
> 
> - Function namespace consistency fixups (Arnaldo Carvalho de Melo)
> 
> - Do not fail on missing Build file, fixing the build on MIPS (Jiri Olsa)
> 
> - Fix up syscall tests, making those tests pass on ARM64 (Riku Voipio)
> 
> - Fix 'function unused' warning in 'perf probe' (Wang Nan)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Adrian Hunter (1):
>       perf db-export: Fix thread ref-counting
> 
> Arnaldo Carvalho de Melo (5):
>       perf kmem: Fix compiler warning about may be accessing uninitialized variable
>       perf machine: Adopt findnew_kernel method
>       perf machine: No need to have two DSOs lists
>       perf machine: Introduce machine__findnew_dso() method
>       perf machine: Fix up vdso methods names
> 
> Jiri Olsa (1):
>       perf build: Do not fail on missing Build file
> 
> Martin Liška (1):
>       perf annotate: Fix -i option, which is currently ignored.
> 
> Namhyung Kim (1):
>       perf tools: Make Ctrl-C stop processing on TUI
> 
> Riku Voipio (3):
>       perf tests: Switch from open to openat
>       perf tests: Aename open*.c to openat*.c
>       perf tests: Remove getpgrp from mmap-basic
> 
> Wang Nan (2):
>       perf probe: Fix 'function unused' warning
>       perf tools: Add ARM64 perf_regs_load to support libunwind and enable testing
> 
>  tools/build/Makefile.build                         |  2 +-
>  tools/build/tests/ex/Build                         |  1 +
>  tools/build/tests/ex/empty2/README                 |  2 +
>  tools/perf/arch/arm64/Build                        |  1 +
>  tools/perf/arch/arm64/include/perf_regs.h          |  3 +
>  tools/perf/arch/arm64/tests/Build                  |  2 +
>  tools/perf/arch/arm64/tests/dwarf-unwind.c         | 61 ++++++++++++++++++++
>  tools/perf/arch/arm64/tests/regs_load.S            | 46 +++++++++++++++
>  tools/perf/builtin-annotate.c                      |  3 +-
>  tools/perf/builtin-kmem.c                          |  2 +-
>  tools/perf/tests/Build                             |  8 +--
>  tools/perf/tests/builtin-test.c                    | 14 ++---
>  tools/perf/tests/hists_common.c                    |  3 +-
>  tools/perf/tests/mmap-basic.c                      |  6 +-
>  ...yscall-all-cpus.c => openat-syscall-all-cpus.c} | 12 ++--
>  ...call-tp-fields.c => openat-syscall-tp-fields.c} |  6 +-
>  .../tests/{open-syscall.c => openat-syscall.c}     | 14 ++---
>  tools/perf/tests/parse-events.c                    | 12 ++--
>  tools/perf/tests/tests.h                           |  8 +--
>  tools/perf/ui/browsers/annotate.c                  |  4 ++
>  tools/perf/ui/browsers/hists.c                     |  4 ++
>  tools/perf/ui/tui/setup.c                          |  2 +-
>  tools/perf/util/build-id.c                         | 59 ++++++-------------
>  tools/perf/util/db-export.c                        | 19 ++++---
>  tools/perf/util/dso.c                              |  6 +-
>  tools/perf/util/dso.h                              |  4 +-
>  tools/perf/util/header.c                           |  6 +-
>  tools/perf/util/machine.c                          | 46 ++++++++-------
>  tools/perf/util/machine.h                          |  5 +-
>  tools/perf/util/map.c                              |  4 +-
>  tools/perf/util/probe-event.c                      | 66 +++++++++++-----------
>  tools/perf/util/symbol-elf.c                       |  6 +-
>  tools/perf/util/vdso.c                             | 24 ++++----
>  tools/perf/util/vdso.h                             |  4 +-
>  34 files changed, 277 insertions(+), 188 deletions(-)
>  create mode 100644 tools/build/tests/ex/empty2/README
>  create mode 100644 tools/perf/arch/arm64/tests/Build
>  create mode 100644 tools/perf/arch/arm64/tests/dwarf-unwind.c
>  create mode 100644 tools/perf/arch/arm64/tests/regs_load.S
>  rename tools/perf/tests/{open-syscall-all-cpus.c => openat-syscall-all-cpus.c} (90%)
>  rename tools/perf/tests/{open-syscall-tp-fields.c => openat-syscall-tp-fields.c} (94%)
>  rename tools/perf/tests/{open-syscall.c => openat-syscall.c} (79%)

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/14] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider applying,

- Arnaldo

The following changes since commit f1942b96b4b44c1ab0e0b82fef93ba7e1fada7af:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-05-28 11:09:22 +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 ed426915900db3c58c410b8b38f6ff0e46bf6c96:

  perf tools: Make Ctrl-C stop processing on TUI (2015-05-29 12:49:00 -0300)

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

User visible:

- Make Ctrl-C stop processing on TUI, allowing interrupting the load of big
  perf.data files (Namhyung Kim)

- Fix 'perf annotate' -i option, which is currently ignored (Martin Liška)

- Add ARM64 perf_regs_load to support libunwind and enable testing (Wang Nan)

Infrastructure:

- Fix thread ref-counting in db-export (Adrian Hunter)

- Fix compiler warning about may be accessing uninitialized (Arnaldo Carvalho de Melo)

- No need to have two lists for user and kernel DSOs, unify them (Arnaldo Carvalho de Melo)

- Function namespace consistency fixups (Arnaldo Carvalho de Melo)

- Do not fail on missing Build file, fixing the build on MIPS (Jiri Olsa)

- Fix up syscall tests, making those tests pass on ARM64 (Riku Voipio)

- Fix 'function unused' warning in 'perf probe' (Wang Nan)

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

----------------------------------------------------------------
Adrian Hunter (1):
      perf db-export: Fix thread ref-counting

Arnaldo Carvalho de Melo (5):
      perf kmem: Fix compiler warning about may be accessing uninitialized variable
      perf machine: Adopt findnew_kernel method
      perf machine: No need to have two DSOs lists
      perf machine: Introduce machine__findnew_dso() method
      perf machine: Fix up vdso methods names

Jiri Olsa (1):
      perf build: Do not fail on missing Build file

Martin Liška (1):
      perf annotate: Fix -i option, which is currently ignored.

Namhyung Kim (1):
      perf tools: Make Ctrl-C stop processing on TUI

Riku Voipio (3):
      perf tests: Switch from open to openat
      perf tests: Aename open*.c to openat*.c
      perf tests: Remove getpgrp from mmap-basic

Wang Nan (2):
      perf probe: Fix 'function unused' warning
      perf tools: Add ARM64 perf_regs_load to support libunwind and enable testing

 tools/build/Makefile.build                         |  2 +-
 tools/build/tests/ex/Build                         |  1 +
 tools/build/tests/ex/empty2/README                 |  2 +
 tools/perf/arch/arm64/Build                        |  1 +
 tools/perf/arch/arm64/include/perf_regs.h          |  3 +
 tools/perf/arch/arm64/tests/Build                  |  2 +
 tools/perf/arch/arm64/tests/dwarf-unwind.c         | 61 ++++++++++++++++++++
 tools/perf/arch/arm64/tests/regs_load.S            | 46 +++++++++++++++
 tools/perf/builtin-annotate.c                      |  3 +-
 tools/perf/builtin-kmem.c                          |  2 +-
 tools/perf/tests/Build                             |  8 +--
 tools/perf/tests/builtin-test.c                    | 14 ++---
 tools/perf/tests/hists_common.c                    |  3 +-
 tools/perf/tests/mmap-basic.c                      |  6 +-
 ...yscall-all-cpus.c => openat-syscall-all-cpus.c} | 12 ++--
 ...call-tp-fields.c => openat-syscall-tp-fields.c} |  6 +-
 .../tests/{open-syscall.c => openat-syscall.c}     | 14 ++---
 tools/perf/tests/parse-events.c                    | 12 ++--
 tools/perf/tests/tests.h                           |  8 +--
 tools/perf/ui/browsers/annotate.c                  |  4 ++
 tools/perf/ui/browsers/hists.c                     |  4 ++
 tools/perf/ui/tui/setup.c                          |  2 +-
 tools/perf/util/build-id.c                         | 59 ++++++-------------
 tools/perf/util/db-export.c                        | 19 ++++---
 tools/perf/util/dso.c                              |  6 +-
 tools/perf/util/dso.h                              |  4 +-
 tools/perf/util/header.c                           |  6 +-
 tools/perf/util/machine.c                          | 46 ++++++++-------
 tools/perf/util/machine.h                          |  5 +-
 tools/perf/util/map.c                              |  4 +-
 tools/perf/util/probe-event.c                      | 66 +++++++++++-----------
 tools/perf/util/symbol-elf.c                       |  6 +-
 tools/perf/util/vdso.c                             | 24 ++++----
 tools/perf/util/vdso.h                             |  4 +-
 34 files changed, 277 insertions(+), 188 deletions(-)
 create mode 100644 tools/build/tests/ex/empty2/README
 create mode 100644 tools/perf/arch/arm64/tests/Build
 create mode 100644 tools/perf/arch/arm64/tests/dwarf-unwind.c
 create mode 100644 tools/perf/arch/arm64/tests/regs_load.S
 rename tools/perf/tests/{open-syscall-all-cpus.c => openat-syscall-all-cpus.c} (90%)
 rename tools/perf/tests/{open-syscall-tp-fields.c => openat-syscall-tp-fields.c} (94%)
 rename tools/perf/tests/{open-syscall.c => openat-syscall.c} (79%)