[GIT PULL 00/18] perf/core improvements and fixes

[GIT PULL 00/18] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit 41e950c033b7df997d4b38653efe6554be9b96a7:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent (2014-12-12 09:09:52 +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 67195c75a87232f055ff415fc4624ef01f24fc3d:

  perf symbols: Fix use after free in filename__read_build_id (2014-12-16 13:38:28 -0300)

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

User visible:

- The mmap address range for the ring buffer now is calculated using the
  contents of /proc/sys/kernel/perf_event_mlock_kb.

  This fixes an -EPERM case where 'trace' was trying to use more than what
  configured on perf_event_mlock_kb. (Arnaldo Carvalho de Melo)

Infrastructure:

- Move bitops definitions so that they match the header file hierarchy
  in the kernel sources where that code came from. (Arnaldo Carvalho de Melo)

- Adopt round{down,up}_pow_of_two from the kernel and use it instead of
  equivalent code, so that we reuse more kernel code and make tools/ look
  more like kernel source code, to encourage further contributions from
  kernel hackers (Arnaldo Carvalho de Melo)

- Fix use after free in filename__read_build_id (Mitchell Krome)

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

----------------------------------------------------------------
Arnaldo Carvalho de Melo (17):
      perf evlist: Fixup brown paper bag on "hint" for --mmap-pages cmdline arg
      perf evlist: Clarify sterror_mmap variable names
      perf evlist: Improve the strerror_mmap method
      perf trace: Let the perf_evlist__mmap autosize the number of pages to use
      perf evlist: Do not use hard coded value for a mmap_pages default
      tools: Move __ffs implementation to tools/include/asm-generic/bitops/__ffs.h
      tools: Move code originally from linux/log2.h to tools/include/linux/
      tools: Move code originally from asm-generic/atomic.h into tools/include/asm-generic/
      tools: Whitespace prep patches for moving bitops.h
      tools lib: Move asm-generic/bitops/find.h code to tools/include and tools/lib
      tools: Introduce asm-generic/bitops.h
      tools: Move bitops.h from tools/perf/util to tools/
      tools: Adopt fls_long and deps
      tools: Adopt rounddown_pow_of_two and deps
      perf tools: Make the mmap length autotuning more robust
      tools: Adopt roundup_pow_of_two
      perf evlist: Use roundup_pow_of_two

Mitchell Krome (1):
      perf symbols: Fix use after free in filename__read_build_id

 tools/include/asm-generic/bitops.h        |  27 +++++
 tools/include/asm-generic/bitops/__ffs.h  |  43 +++++++
 tools/include/asm-generic/bitops/__fls.h  |   1 +
 tools/include/asm-generic/bitops/atomic.h |  22 ++++
 tools/include/asm-generic/bitops/find.h   |  33 ++++++
 tools/include/asm-generic/bitops/fls.h    |   1 +
 tools/include/asm-generic/bitops/fls64.h  |   1 +
 tools/include/linux/bitops.h              |  53 +++++++++
 tools/include/linux/log2.h                | 185 ++++++++++++++++++++++++++++++
 tools/lib/util/find_next_bit.c            |  89 ++++++++++++++
 tools/perf/MANIFEST                       |  13 ++-
 tools/perf/Makefile.perf                  |  14 ++-
 tools/perf/builtin-trace.c                |   2 +-
 tools/perf/util/evlist.c                  |  46 ++++++--
 tools/perf/util/include/linux/bitops.h    | 162 --------------------------
 tools/perf/util/symbol-minimal.c          |   8 +-
 tools/perf/util/util.h                    |  29 -----
 17 files changed, 522 insertions(+), 207 deletions(-)
 create mode 100644 tools/include/asm-generic/bitops.h
 create mode 100644 tools/include/asm-generic/bitops/__ffs.h
 create mode 100644 tools/include/asm-generic/bitops/__fls.h
 create mode 100644 tools/include/asm-generic/bitops/atomic.h
 create mode 100644 tools/include/asm-generic/bitops/find.h
 create mode 100644 tools/include/asm-generic/bitops/fls.h
 create mode 100644 tools/include/asm-generic/bitops/fls64.h
 create mode 100644 tools/include/linux/bitops.h
 create mode 100644 tools/include/linux/log2.h
 create mode 100644 tools/lib/util/find_next_bit.c
 delete mode 100644 tools/perf/util/include/linux/bitops.h

[PATCH 01/18] perf evlist: Fixup brown paper bag on "hint" for --mmap-pages cmdline arg

[Arnaldo Carvalho de Melo]

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

When failing due to asking for a number of mmap pages that is more than
the max, it was suggesting that an even bigger number of mmap pages
should be specified, doh, au contraire!

Before:

  [acme@ssdandy linux]$ trace -m 128 usleep 1
  Error:	Operation not permitted.
  Hint:	Check /proc/sys/kernel/perf_event_mlock_kb (516 kB) setting.
  Hint:	Tried using 516 kB.
  Hint:	Try using a bigger -m/--mmap-pages value.
  [acme@ssdandy linux]$

After:

  [acme@ssdandy linux]$ trace -m 128 usleep 1
  Error:	Operation not permitted.
  Hint:	Check /proc/sys/kernel/perf_event_mlock_kb (516 kB) setting.
  Hint:	Tried using 516 kB.
  Hint:	Try using a smaller -m/--mmap-pages value.
  [acme@ssdandy linux]$

And to (really) clarify what happens above, when what the user requests
is <= max and even then it fails, a changeset is being made to tell that
this is a per user limit, not per process (in the above example there
was another 'perf trace' running for this user, which was using all the
pages it could use).

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-8qope8lxb898narnq5kmu2gf@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/evlist.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index bb5dfc5d1e75..de7515dd683a 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1495,7 +1495,7 @@ int perf_evlist__strerror_mmap(struct perf_evlist *evlist, int err, char *buf, s
 		scnprintf(buf, size, "Error:\t%s.\n"
 				     "Hint:\tCheck /proc/sys/kernel/perf_event_mlock_kb (%d kB) setting.\n"
 				     "Hint:\tTried using %zd kB.\n"
-				     "Hint:\tTry using a bigger -m/--mmap-pages value.",
+				     "Hint:\tTry using a smaller -m/--mmap-pages value.",
 				     emsg, value, evlist->mmap_len / 1024);
 		break;
 	default:
-- 
1.9.3

[PATCH 02/18] perf evlist: Clarify sterror_mmap variable names

[Arnaldo Carvalho de Melo]

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

Prep patch for doing further checks like when the number of pages that
is being attempted is actually below /proc/sys/kernel/perf_event_mlock_kb but
the operation fails because the user doesn't have CAP_IPC_LOCK.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-wetzlux7mzvofu5cuji5i71i@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/evlist.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index de7515dd683a..d661f252b891 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1487,16 +1487,16 @@ int perf_evlist__strerror_open(struct perf_evlist *evlist __maybe_unused,
 int perf_evlist__strerror_mmap(struct perf_evlist *evlist, int err, char *buf, size_t size)
 {
 	char sbuf[STRERR_BUFSIZE], *emsg = strerror_r(err, sbuf, sizeof(sbuf));
-	int value;
+	int pages_attempted = evlist->mmap_len / 1024, pages_max_per_user;
 
 	switch (err) {
 	case EPERM:
-		sysctl__read_int("kernel/perf_event_mlock_kb", &value);
+		sysctl__read_int("kernel/perf_event_mlock_kb", &pages_max_per_user);
 		scnprintf(buf, size, "Error:\t%s.\n"
 				     "Hint:\tCheck /proc/sys/kernel/perf_event_mlock_kb (%d kB) setting.\n"
 				     "Hint:\tTried using %zd kB.\n"
 				     "Hint:\tTry using a smaller -m/--mmap-pages value.",
-				     emsg, value, evlist->mmap_len / 1024);
+				     emsg, pages_max_per_user, pages_attempted);
 		break;
 	default:
 		scnprintf(buf, size, "%s", emsg);
-- 
1.9.3

[PATCH 03/18] perf evlist: Improve the strerror_mmap method

[Arnaldo Carvalho de Melo]

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

Considering the per user locked pages limit, improve the message when a
user uses multiple simultaneous perf mmap calls:

When the request is more than the current maximum:

  [acme@ssdandy linux]$ trace -m 128 usleep 1
  Error: Operation not permitted.
  Hint:  Check /proc/sys/kernel/perf_event_mlock_kb (516 kB) setting.
  Hint:  Tried using 516 kB.
  Hint:  Try 'sudo sh -c "echo 1032 > /proc/sys/kernel/perf_event_mlock_kb"', or
  Hint:  Try using a smaller -m/--mmap-pages value.
  [acme@ssdandy linux]$

And when the limit is less than that:

  [acme@ssdandy linux]$ trace -m 512 usleep 1
  Error: Operation not permitted.
  Hint:  Check /proc/sys/kernel/perf_event_mlock_kb (2056 kB) setting.
  Hint:  Tried using 2052 kB.
  Hint:  Try using a smaller -m/--mmap-pages value.
  [acme@ssdandy linux]$

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-yqdie3c8qvdgenwleri267d4@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/evlist.c | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index d661f252b891..7847f3885081 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1487,16 +1487,25 @@ int perf_evlist__strerror_open(struct perf_evlist *evlist __maybe_unused,
 int perf_evlist__strerror_mmap(struct perf_evlist *evlist, int err, char *buf, size_t size)
 {
 	char sbuf[STRERR_BUFSIZE], *emsg = strerror_r(err, sbuf, sizeof(sbuf));
-	int pages_attempted = evlist->mmap_len / 1024, pages_max_per_user;
+	int pages_attempted = evlist->mmap_len / 1024, pages_max_per_user, printed = 0;
 
 	switch (err) {
 	case EPERM:
 		sysctl__read_int("kernel/perf_event_mlock_kb", &pages_max_per_user);
-		scnprintf(buf, size, "Error:\t%s.\n"
+		printed += scnprintf(buf + printed, size - printed,
+				     "Error:\t%s.\n"
 				     "Hint:\tCheck /proc/sys/kernel/perf_event_mlock_kb (%d kB) setting.\n"
-				     "Hint:\tTried using %zd kB.\n"
-				     "Hint:\tTry using a smaller -m/--mmap-pages value.",
+				     "Hint:\tTried using %zd kB.\n",
 				     emsg, pages_max_per_user, pages_attempted);
+
+		if (pages_attempted >= pages_max_per_user) {
+			printed += scnprintf(buf + printed, size - printed,
+					     "Hint:\tTry 'sudo sh -c \"echo %d > /proc/sys/kernel/perf_event_mlock_kb\"', or\n",
+					     pages_max_per_user + pages_attempted);
+		}
+
+		printed += scnprintf(buf + printed, size - printed,
+				     "Hint:\tTry using a smaller -m/--mmap-pages value.");
 		break;
 	default:
 		scnprintf(buf, size, "%s", emsg);
-- 
1.9.3

[PATCH 04/18] perf trace: Let the perf_evlist__mmap autosize the number of pages to use

[Arnaldo Carvalho de Melo]

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

So that normal users can run 'trace', we were using a hardcoded 1024
pages value that was more than the default /proc/sys/kernel/perf_event_mlock_kb
setting.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-3banj3yh0sjz41obxtgiel3a@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 327541e43c7f..badfabc6a01f 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -2485,7 +2485,7 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
 			.user_freq     = UINT_MAX,
 			.user_interval = ULLONG_MAX,
 			.no_buffering  = true,
-			.mmap_pages    = 1024,
+			.mmap_pages    = UINT_MAX,
 		},
 		.output = stdout,
 		.show_comm = true,
-- 
1.9.3

[PATCH 05/18] perf evlist: Do not use hard coded value for a mmap_pages default

[Arnaldo Carvalho de Melo]

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

So far what is in there by default is what we were using: 512KB + the
control page, but the admin may change that, and if it does to a smaller
value, all calls to tooling for non root users start failing, requiring
that the user manually set --mmap_pages/-m.

Use instead what is in /proc/sys/kernel/perf_event_mlock_kb.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-2f6mtm8xu3wo5lhkql6jdblh@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/evlist.c | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 7847f3885081..ac808680e61c 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -893,10 +893,22 @@ out_unmap:
 
 static size_t perf_evlist__mmap_size(unsigned long pages)
 {
-	/* 512 kiB: default amount of unprivileged mlocked memory */
-	if (pages == UINT_MAX)
-		pages = (512 * 1024) / page_size;
-	else if (!is_power_of_2(pages))
+	if (pages == UINT_MAX) {
+		int max;
+
+		if (sysctl__read_int("kernel/perf_event_mlock_kb", &max) < 0) {
+			/*
+			 * Pick a once upon a time good value, i.e. things look
+			 * strange since we can't read a sysctl value, but lets not
+			 * die yet...
+			 */
+			max = 512;
+		} else {
+			max -= (page_size / 1024);
+		}
+
+		pages = (max * 1024) / page_size;
+	} else if (!is_power_of_2(pages))
 		return 0;
 
 	return (pages + 1) * page_size;
-- 
1.9.3

[PATCH 06/18] tools: Move __ffs implementation to tools/include/asm-generic/bitops/__ffs.h

[Arnaldo Carvalho de Melo]

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

To match the Linux kernel source code structure from where this code came from.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-gubysnp4a8hd98lxoeruak13@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/include/asm-generic/bitops/__ffs.h | 43 ++++++++++++++++++++++++++++++++
 tools/perf/MANIFEST                      |  1 +
 tools/perf/Makefile.perf                 |  1 +
 tools/perf/util/include/linux/bitops.h   | 37 +--------------------------
 4 files changed, 46 insertions(+), 36 deletions(-)
 create mode 100644 tools/include/asm-generic/bitops/__ffs.h

diff --git a/tools/include/asm-generic/bitops/__ffs.h b/tools/include/asm-generic/bitops/__ffs.h
new file mode 100644
index 000000000000..c94175015a82
--- /dev/null
+++ b/tools/include/asm-generic/bitops/__ffs.h
@@ -0,0 +1,43 @@
+#ifndef _TOOLS_LINUX_ASM_GENERIC_BITOPS___FFS_H_
+#define _TOOLS_LINUX_ASM_GENERIC_BITOPS___FFS_H_
+
+#include <asm/types.h>
+
+/**
+ * __ffs - find first bit in word.
+ * @word: The word to search
+ *
+ * Undefined if no bit exists, so code should check against 0 first.
+ */
+static __always_inline unsigned long __ffs(unsigned long word)
+{
+	int num = 0;
+
+#if __BITS_PER_LONG == 64
+	if ((word & 0xffffffff) == 0) {
+		num += 32;
+		word >>= 32;
+	}
+#endif
+	if ((word & 0xffff) == 0) {
+		num += 16;
+		word >>= 16;
+	}
+	if ((word & 0xff) == 0) {
+		num += 8;
+		word >>= 8;
+	}
+	if ((word & 0xf) == 0) {
+		num += 4;
+		word >>= 4;
+	}
+	if ((word & 0x3) == 0) {
+		num += 2;
+		word >>= 2;
+	}
+	if ((word & 0x1) == 0)
+		num += 1;
+	return num;
+}
+
+#endif /* _TOOLS_LINUX_ASM_GENERIC_BITOPS___FFS_H_ */
diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST
index 344c4d3d0a4a..39c08636357b 100644
--- a/tools/perf/MANIFEST
+++ b/tools/perf/MANIFEST
@@ -5,6 +5,7 @@ tools/lib/api
 tools/lib/symbol/kallsyms.c
 tools/lib/symbol/kallsyms.h
 tools/include/asm/bug.h
+tools/include/asm-generic/bitops/__ffs.h
 tools/include/linux/compiler.h
 tools/include/linux/hash.h
 tools/include/linux/export.h
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 763e68fb5767..bfd86a32254a 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -232,6 +232,7 @@ LIB_H += ../include/linux/hash.h
 LIB_H += ../../include/linux/stringify.h
 LIB_H += util/include/linux/bitmap.h
 LIB_H += util/include/linux/bitops.h
+LIB_H += ../include/asm-generic/bitops/__ffs.h 
 LIB_H += ../include/linux/compiler.h
 LIB_H += util/include/linux/const.h
 LIB_H += util/include/linux/ctype.h
diff --git a/tools/perf/util/include/linux/bitops.h b/tools/perf/util/include/linux/bitops.h
index c3294163de17..762bb83333c0 100644
--- a/tools/perf/util/include/linux/bitops.h
+++ b/tools/perf/util/include/linux/bitops.h
@@ -52,42 +52,7 @@ static inline unsigned long hweight_long(unsigned long w)
 
 #define BITOP_WORD(nr)		((nr) / BITS_PER_LONG)
 
-/**
- * __ffs - find first bit in word.
- * @word: The word to search
- *
- * Undefined if no bit exists, so code should check against 0 first.
- */
-static __always_inline unsigned long __ffs(unsigned long word)
-{
-	int num = 0;
-
-#if BITS_PER_LONG == 64
-	if ((word & 0xffffffff) == 0) {
-		num += 32;
-		word >>= 32;
-	}
-#endif
-	if ((word & 0xffff) == 0) {
-		num += 16;
-		word >>= 16;
-	}
-	if ((word & 0xff) == 0) {
-		num += 8;
-		word >>= 8;
-	}
-	if ((word & 0xf) == 0) {
-		num += 4;
-		word >>= 4;
-	}
-	if ((word & 0x3) == 0) {
-		num += 2;
-		word >>= 2;
-	}
-	if ((word & 0x1) == 0)
-		num += 1;
-	return num;
-}
+#include <asm-generic/bitops/__ffs.h>
 
 typedef const unsigned long __attribute__((__may_alias__)) long_alias_t;
 
-- 
1.9.3

[PATCH 07/18] tools: Move code originally from linux/log2.h to tools/include/linux/

[Arnaldo Carvalho de Melo]

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

>From tools/perf/util/include/linux, so that it becomes accessible to
other tools/.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-uqohgzilp3ebd3cbybnf3luc@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/include/linux/log2.h | 26 ++++++++++++++++++++++++++
 tools/perf/MANIFEST        |  3 ++-
 tools/perf/Makefile.perf   |  1 +
 tools/perf/util/evlist.c   |  1 +
 tools/perf/util/util.h     | 11 -----------
 5 files changed, 30 insertions(+), 12 deletions(-)
 create mode 100644 tools/include/linux/log2.h

diff --git a/tools/include/linux/log2.h b/tools/include/linux/log2.h
new file mode 100644
index 000000000000..141b7665d842
--- /dev/null
+++ b/tools/include/linux/log2.h
@@ -0,0 +1,26 @@
+/* Integer base 2 logarithm calculation
+ *
+ * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _TOOLS_LINUX_LOG2_H
+#define _TOOLS_LINUX_LOG2_H
+
+/*
+ *  Determine whether some value is a power of two, where zero is
+ * *not* considered a power of two.
+ */
+
+static inline __attribute__((const))
+bool is_power_of_2(unsigned long n)
+{
+	return (n != 0 && ((n & (n - 1)) == 0));
+}
+
+#endif /* _TOOLS_LINUX_LOG2_H */
diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST
index 39c08636357b..db7827fd2518 100644
--- a/tools/perf/MANIFEST
+++ b/tools/perf/MANIFEST
@@ -7,8 +7,9 @@ tools/lib/symbol/kallsyms.h
 tools/include/asm/bug.h
 tools/include/asm-generic/bitops/__ffs.h
 tools/include/linux/compiler.h
-tools/include/linux/hash.h
 tools/include/linux/export.h
+tools/include/linux/hash.h
+tools/include/linux/log2.h
 tools/include/linux/types.h
 include/linux/const.h
 include/linux/perf_event.h
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index bfd86a32254a..bd6073e0dec7 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -234,6 +234,7 @@ LIB_H += util/include/linux/bitmap.h
 LIB_H += util/include/linux/bitops.h
 LIB_H += ../include/asm-generic/bitops/__ffs.h 
 LIB_H += ../include/linux/compiler.h
+LIB_H += ../include/linux/log2.h
 LIB_H += util/include/linux/const.h
 LIB_H += util/include/linux/ctype.h
 LIB_H += util/include/linux/kernel.h
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index ac808680e61c..8eb92cf5d552 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -25,6 +25,7 @@
 
 #include <linux/bitops.h>
 #include <linux/hash.h>
+#include <linux/log2.h>
 
 static void perf_evlist__mmap_put(struct perf_evlist *evlist, int idx);
 static void __perf_evlist__munmap(struct perf_evlist *evlist, int idx);
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 008b361b1758..25b22bbea066 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -269,17 +269,6 @@ void event_attr_init(struct perf_event_attr *attr);
 #define _STR(x) #x
 #define STR(x) _STR(x)
 
-/*
- *  Determine whether some value is a power of two, where zero is
- * *not* considered a power of two.
- */
-
-static inline __attribute__((const))
-bool is_power_of_2(unsigned long n)
-{
-	return (n != 0 && ((n & (n - 1)) == 0));
-}
-
 static inline unsigned next_pow2(unsigned x)
 {
 	if (!x)
-- 
1.9.3

[PATCH 08/18] tools: Move code originally from asm-generic/atomic.h into tools/include/asm-generic/

[Arnaldo Carvalho de Melo]

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

To match the Linux kernel source code structure from where this code came from.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-1ldjhvioch1uczilno5e1epl@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/include/asm-generic/bitops/atomic.h | 22 ++++++++++++++++++++++
 tools/perf/MANIFEST                       |  1 +
 tools/perf/Makefile.perf                  |  1 +
 tools/perf/util/include/linux/bitops.h    | 16 +---------------
 4 files changed, 25 insertions(+), 15 deletions(-)
 create mode 100644 tools/include/asm-generic/bitops/atomic.h

diff --git a/tools/include/asm-generic/bitops/atomic.h b/tools/include/asm-generic/bitops/atomic.h
new file mode 100644
index 000000000000..4bccd7c3d5d6
--- /dev/null
+++ b/tools/include/asm-generic/bitops/atomic.h
@@ -0,0 +1,22 @@
+#ifndef _TOOLS_LINUX_ASM_GENERIC_BITOPS_ATOMIC_H_
+#define _TOOLS_LINUX_ASM_GENERIC_BITOPS_ATOMIC_H_
+
+#include <asm/types.h>
+
+static inline void set_bit(int nr, unsigned long *addr)
+{
+	addr[nr / __BITS_PER_LONG] |= 1UL << (nr % __BITS_PER_LONG);
+}
+
+static inline void clear_bit(int nr, unsigned long *addr)
+{
+	addr[nr / __BITS_PER_LONG] &= ~(1UL << (nr % __BITS_PER_LONG));
+}
+
+static __always_inline int test_bit(unsigned int nr, const unsigned long *addr)
+{
+	return ((1UL << (nr % __BITS_PER_LONG)) &
+		(((unsigned long *)addr)[nr / __BITS_PER_LONG])) != 0;
+}
+
+#endif /* _TOOLS_LINUX_ASM_GENERIC_BITOPS_ATOMIC_H_ */
diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST
index db7827fd2518..67d48e20f7e1 100644
--- a/tools/perf/MANIFEST
+++ b/tools/perf/MANIFEST
@@ -5,6 +5,7 @@ tools/lib/api
 tools/lib/symbol/kallsyms.c
 tools/lib/symbol/kallsyms.h
 tools/include/asm/bug.h
+tools/include/asm-generic/bitops/atomic.h
 tools/include/asm-generic/bitops/__ffs.h
 tools/include/linux/compiler.h
 tools/include/linux/export.h
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index bd6073e0dec7..fc4082fdf6bf 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -232,6 +232,7 @@ LIB_H += ../include/linux/hash.h
 LIB_H += ../../include/linux/stringify.h
 LIB_H += util/include/linux/bitmap.h
 LIB_H += util/include/linux/bitops.h
+LIB_H += ../include/asm-generic/bitops/atomic.h 
 LIB_H += ../include/asm-generic/bitops/__ffs.h 
 LIB_H += ../include/linux/compiler.h
 LIB_H += ../include/linux/log2.h
diff --git a/tools/perf/util/include/linux/bitops.h b/tools/perf/util/include/linux/bitops.h
index 762bb83333c0..71f017dc6230 100644
--- a/tools/perf/util/include/linux/bitops.h
+++ b/tools/perf/util/include/linux/bitops.h
@@ -29,21 +29,7 @@
 	     (bit) < (size);					\
 	     (bit) = find_next_bit((addr), (size), (bit) + 1))
 
-static inline void set_bit(int nr, unsigned long *addr)
-{
-	addr[nr / BITS_PER_LONG] |= 1UL << (nr % BITS_PER_LONG);
-}
-
-static inline void clear_bit(int nr, unsigned long *addr)
-{
-	addr[nr / BITS_PER_LONG] &= ~(1UL << (nr % BITS_PER_LONG));
-}
-
-static __always_inline int test_bit(unsigned int nr, const unsigned long *addr)
-{
-	return ((1UL << (nr % BITS_PER_LONG)) &
-		(((unsigned long *)addr)[nr / BITS_PER_LONG])) != 0;
-}
+#include <asm-generic/bitops/atomic.h>
 
 static inline unsigned long hweight_long(unsigned long w)
 {
-- 
1.9.3

[PATCH 09/18] tools: Whitespace prep patches for moving bitops.h

[Arnaldo Carvalho de Melo]

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

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-6xmwcvgm2rvoayv2mf9n5sf8@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/include/linux/bitops.h | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/tools/perf/util/include/linux/bitops.h b/tools/perf/util/include/linux/bitops.h
index 71f017dc6230..58c4a2520ac2 100644
--- a/tools/perf/util/include/linux/bitops.h
+++ b/tools/perf/util/include/linux/bitops.h
@@ -10,13 +10,14 @@
 #endif
 
 #define BITS_PER_LONG __WORDSIZE
-#define BITS_PER_BYTE           8
-#define BITS_TO_LONGS(nr)       DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
-#define BITS_TO_U64(nr)         DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u64))
-#define BITS_TO_U32(nr)         DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u32))
-#define BITS_TO_BYTES(nr)       DIV_ROUND_UP(nr, BITS_PER_BYTE)
-#define BIT_WORD(nr)            ((nr) / BITS_PER_LONG)
-#define BIT_MASK(nr)            (1UL << ((nr) % BITS_PER_LONG))
+
+#define BIT_MASK(nr)		(1UL << ((nr) % BITS_PER_LONG))
+#define BIT_WORD(nr)		((nr) / BITS_PER_LONG)
+#define BITS_PER_BYTE		8
+#define BITS_TO_LONGS(nr)	DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
+#define BITS_TO_U64(nr)		DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u64))
+#define BITS_TO_U32(nr)		DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u32))
+#define BITS_TO_BYTES(nr)	DIV_ROUND_UP(nr, BITS_PER_BYTE)
 
 #define for_each_set_bit(bit, addr, size) \
 	for ((bit) = find_first_bit((addr), (size));		\
-- 
1.9.3

[PATCH 10/18] tools lib: Move asm-generic/bitops/find.h code to tools/include and tools/lib

[Arnaldo Carvalho de Melo]

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

To match the Linux kernel source code structure from where this code came from.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-fkbma1h04ki0zzdmp0dpgfyy@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/include/asm-generic/bitops/find.h | 33 ++++++++++++
 tools/lib/util/find_next_bit.c          | 89 +++++++++++++++++++++++++++++++++
 tools/perf/MANIFEST                     |  3 ++
 tools/perf/Makefile.perf                |  5 ++
 tools/perf/util/include/linux/bitops.h  | 73 +--------------------------
 5 files changed, 131 insertions(+), 72 deletions(-)
 create mode 100644 tools/include/asm-generic/bitops/find.h
 create mode 100644 tools/lib/util/find_next_bit.c

diff --git a/tools/include/asm-generic/bitops/find.h b/tools/include/asm-generic/bitops/find.h
new file mode 100644
index 000000000000..31f51547fcd4
--- /dev/null
+++ b/tools/include/asm-generic/bitops/find.h
@@ -0,0 +1,33 @@
+#ifndef _TOOLS_LINUX_ASM_GENERIC_BITOPS_FIND_H_
+#define _TOOLS_LINUX_ASM_GENERIC_BITOPS_FIND_H_
+
+#ifndef find_next_bit
+/**
+ * find_next_bit - find the next set bit in a memory region
+ * @addr: The address to base the search on
+ * @offset: The bitnumber to start searching at
+ * @size: The bitmap size in bits
+ *
+ * Returns the bit number for the next set bit
+ * If no bits are set, returns @size.
+ */
+extern unsigned long find_next_bit(const unsigned long *addr, unsigned long
+		size, unsigned long offset);
+#endif
+
+#ifndef find_first_bit
+
+/**
+ * find_first_bit - find the first set bit in a memory region
+ * @addr: The address to start the search at
+ * @size: The maximum number of bits to search
+ *
+ * Returns the bit number of the first set bit.
+ * If no bits are set, returns @size.
+ */
+extern unsigned long find_first_bit(const unsigned long *addr,
+				    unsigned long size);
+
+#endif /* find_first_bit */
+
+#endif /*_TOOLS_LINUX_ASM_GENERIC_BITOPS_FIND_H_ */
diff --git a/tools/lib/util/find_next_bit.c b/tools/lib/util/find_next_bit.c
new file mode 100644
index 000000000000..41b44f65a79e
--- /dev/null
+++ b/tools/lib/util/find_next_bit.c
@@ -0,0 +1,89 @@
+/* find_next_bit.c: fallback find next bit implementation
+ *
+ * Copied from lib/find_next_bit.c to tools/lib/next_bit.c
+ *
+ * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/bitops.h>
+#include <asm/types.h>
+#include <asm/byteorder.h>
+
+#define BITOP_WORD(nr)		((nr) / BITS_PER_LONG)
+
+#ifndef find_next_bit
+/*
+ * Find the next set bit in a memory region.
+ */
+unsigned long find_next_bit(const unsigned long *addr, unsigned long size,
+			    unsigned long offset)
+{
+	const unsigned long *p = addr + BITOP_WORD(offset);
+	unsigned long result = offset & ~(BITS_PER_LONG-1);
+	unsigned long tmp;
+
+	if (offset >= size)
+		return size;
+	size -= result;
+	offset %= BITS_PER_LONG;
+	if (offset) {
+		tmp = *(p++);
+		tmp &= (~0UL << offset);
+		if (size < BITS_PER_LONG)
+			goto found_first;
+		if (tmp)
+			goto found_middle;
+		size -= BITS_PER_LONG;
+		result += BITS_PER_LONG;
+	}
+	while (size & ~(BITS_PER_LONG-1)) {
+		if ((tmp = *(p++)))
+			goto found_middle;
+		result += BITS_PER_LONG;
+		size -= BITS_PER_LONG;
+	}
+	if (!size)
+		return result;
+	tmp = *p;
+
+found_first:
+	tmp &= (~0UL >> (BITS_PER_LONG - size));
+	if (tmp == 0UL)		/* Are any bits set? */
+		return result + size;	/* Nope. */
+found_middle:
+	return result + __ffs(tmp);
+}
+#endif
+
+#ifndef find_first_bit
+/*
+ * Find the first set bit in a memory region.
+ */
+unsigned long find_first_bit(const unsigned long *addr, unsigned long size)
+{
+	const unsigned long *p = addr;
+	unsigned long result = 0;
+	unsigned long tmp;
+
+	while (size & ~(BITS_PER_LONG-1)) {
+		if ((tmp = *(p++)))
+			goto found;
+		result += BITS_PER_LONG;
+		size -= BITS_PER_LONG;
+	}
+	if (!size)
+		return result;
+
+	tmp = (*p) & (~0UL >> (BITS_PER_LONG - size));
+	if (tmp == 0UL)		/* Are any bits set? */
+		return result + size;	/* Nope. */
+found:
+	return result + __ffs(tmp);
+}
+#endif
diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST
index 67d48e20f7e1..bfd7e22bafad 100644
--- a/tools/perf/MANIFEST
+++ b/tools/perf/MANIFEST
@@ -4,8 +4,10 @@ tools/lib/traceevent
 tools/lib/api
 tools/lib/symbol/kallsyms.c
 tools/lib/symbol/kallsyms.h
+tools/lib/util/find_next_bit.c
 tools/include/asm/bug.h
 tools/include/asm-generic/bitops/atomic.h
+tools/include/asm-generic/bitops/find.h
 tools/include/asm-generic/bitops/__ffs.h
 tools/include/linux/compiler.h
 tools/include/linux/export.h
@@ -18,6 +20,7 @@ include/linux/rbtree.h
 include/linux/list.h
 include/linux/hash.h
 include/linux/stringify.h
+lib/find_next_bit.c
 lib/rbtree.c
 include/linux/swab.h
 arch/*/include/asm/unistd*.h
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index fc4082fdf6bf..2d799da4eacc 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -233,6 +233,7 @@ LIB_H += ../../include/linux/stringify.h
 LIB_H += util/include/linux/bitmap.h
 LIB_H += util/include/linux/bitops.h
 LIB_H += ../include/asm-generic/bitops/atomic.h 
+LIB_H += ../include/asm-generic/bitops/find.h 
 LIB_H += ../include/asm-generic/bitops/__ffs.h 
 LIB_H += ../include/linux/compiler.h
 LIB_H += ../include/linux/log2.h
@@ -338,6 +339,7 @@ LIB_OBJS += $(OUTPUT)util/event.o
 LIB_OBJS += $(OUTPUT)util/evlist.o
 LIB_OBJS += $(OUTPUT)util/evsel.o
 LIB_OBJS += $(OUTPUT)util/exec_cmd.o
+LIB_OBJS += $(OUTPUT)util/find_next_bit.o
 LIB_OBJS += $(OUTPUT)util/help.o
 LIB_OBJS += $(OUTPUT)util/kallsyms.o
 LIB_OBJS += $(OUTPUT)util/levenshtein.o
@@ -737,6 +739,9 @@ $(OUTPUT)util/kallsyms.o: ../lib/symbol/kallsyms.c $(OUTPUT)PERF-CFLAGS
 $(OUTPUT)util/rbtree.o: ../../lib/rbtree.c $(OUTPUT)PERF-CFLAGS
 	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -Wno-unused-parameter -DETC_PERFCONFIG='"$(ETC_PERFCONFIG_SQ)"' $<
 
+$(OUTPUT)util/find_next_bit.o: ../lib/util/find_next_bit.c $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -Wno-unused-parameter -DETC_PERFCONFIG='"$(ETC_PERFCONFIG_SQ)"' $<
+
 $(OUTPUT)util/parse-events.o: util/parse-events.c $(OUTPUT)PERF-CFLAGS
 	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -Wno-redundant-decls $<
 
diff --git a/tools/perf/util/include/linux/bitops.h b/tools/perf/util/include/linux/bitops.h
index 58c4a2520ac2..292aadeb66c5 100644
--- a/tools/perf/util/include/linux/bitops.h
+++ b/tools/perf/util/include/linux/bitops.h
@@ -37,78 +37,7 @@ static inline unsigned long hweight_long(unsigned long w)
 	return sizeof(w) == 4 ? hweight32(w) : hweight64(w);
 }
 
-#define BITOP_WORD(nr)		((nr) / BITS_PER_LONG)
-
 #include <asm-generic/bitops/__ffs.h>
-
-typedef const unsigned long __attribute__((__may_alias__)) long_alias_t;
-
-/*
- * Find the first set bit in a memory region.
- */
-static inline unsigned long
-find_first_bit(const unsigned long *addr, unsigned long size)
-{
-	long_alias_t *p = (long_alias_t *) addr;
-	unsigned long result = 0;
-	unsigned long tmp;
-
-	while (size & ~(BITS_PER_LONG-1)) {
-		if ((tmp = *(p++)))
-			goto found;
-		result += BITS_PER_LONG;
-		size -= BITS_PER_LONG;
-	}
-	if (!size)
-		return result;
-
-	tmp = (*p) & (~0UL >> (BITS_PER_LONG - size));
-	if (tmp == 0UL)		/* Are any bits set? */
-		return result + size;	/* Nope. */
-found:
-	return result + __ffs(tmp);
-}
-
-/*
- * Find the next set bit in a memory region.
- */
-static inline unsigned long
-find_next_bit(const unsigned long *addr, unsigned long size, unsigned long offset)
-{
-	const unsigned long *p = addr + BITOP_WORD(offset);
-	unsigned long result = offset & ~(BITS_PER_LONG-1);
-	unsigned long tmp;
-
-	if (offset >= size)
-		return size;
-	size -= result;
-	offset %= BITS_PER_LONG;
-	if (offset) {
-		tmp = *(p++);
-		tmp &= (~0UL << offset);
-		if (size < BITS_PER_LONG)
-			goto found_first;
-		if (tmp)
-			goto found_middle;
-		size -= BITS_PER_LONG;
-		result += BITS_PER_LONG;
-	}
-	while (size & ~(BITS_PER_LONG-1)) {
-		if ((tmp = *(p++)))
-			goto found_middle;
-		result += BITS_PER_LONG;
-		size -= BITS_PER_LONG;
-	}
-	if (!size)
-		return result;
-	tmp = *p;
-
-found_first:
-	tmp &= (~0UL >> (BITS_PER_LONG - size));
-	if (tmp == 0UL)		/* Are any bits set? */
-		return result + size;	/* Nope. */
-found_middle:
-	return result + __ffs(tmp);
-}
+#include <asm-generic/bitops/find.h>
 
 #endif
-- 
1.9.3

[PATCH 11/18] tools: Introduce asm-generic/bitops.h

[Arnaldo Carvalho de Melo]

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

In preparation for moving linux/bitops.h from tools/perf/util/ to
tools/include/.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-2wuk8vahl7voz0ie55f07c9k@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/include/asm-generic/bitops.h     | 24 ++++++++++++++++++++++++
 tools/perf/MANIFEST                    |  3 ++-
 tools/perf/Makefile.perf               |  1 +
 tools/perf/util/include/linux/bitops.h | 17 ++++++++++-------
 4 files changed, 37 insertions(+), 8 deletions(-)
 create mode 100644 tools/include/asm-generic/bitops.h

diff --git a/tools/include/asm-generic/bitops.h b/tools/include/asm-generic/bitops.h
new file mode 100644
index 000000000000..6dfd9d5fd828
--- /dev/null
+++ b/tools/include/asm-generic/bitops.h
@@ -0,0 +1,24 @@
+#ifndef __TOOLS_ASM_GENERIC_BITOPS_H
+#define __TOOLS_ASM_GENERIC_BITOPS_H
+
+/*
+ * tools/ copied this from include/asm-generic/bitops.h, bit by bit as it needed
+ * some functions.
+ *
+ * For the benefit of those who are trying to port Linux to another
+ * architecture, here are some C-language equivalents.  You should
+ * recode these in the native assembly language, if at all possible.
+ *
+ * C language equivalents written by Theodore Ts'o, 9/26/92
+ */
+
+#include <asm-generic/bitops/__ffs.h>
+#include <asm-generic/bitops/find.h>
+
+#ifndef _TOOLS_LINUX_BITOPS_H_
+#error only <linux/bitops.h> can be included directly
+#endif
+
+#include <asm-generic/bitops/atomic.h>
+
+#endif /* __TOOLS_ASM_GENERIC_BITOPS_H */
diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST
index bfd7e22bafad..86f115cdbb5b 100644
--- a/tools/perf/MANIFEST
+++ b/tools/perf/MANIFEST
@@ -7,8 +7,9 @@ tools/lib/symbol/kallsyms.h
 tools/lib/util/find_next_bit.c
 tools/include/asm/bug.h
 tools/include/asm-generic/bitops/atomic.h
-tools/include/asm-generic/bitops/find.h
 tools/include/asm-generic/bitops/__ffs.h
+tools/include/asm-generic/bitops/find.h
+tools/include/asm-generic/bitops.h
 tools/include/linux/compiler.h
 tools/include/linux/export.h
 tools/include/linux/hash.h
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 2d799da4eacc..d9bf9685e9da 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -235,6 +235,7 @@ LIB_H += util/include/linux/bitops.h
 LIB_H += ../include/asm-generic/bitops/atomic.h 
 LIB_H += ../include/asm-generic/bitops/find.h 
 LIB_H += ../include/asm-generic/bitops/__ffs.h 
+LIB_H += ../include/asm-generic/bitops.h
 LIB_H += ../include/linux/compiler.h
 LIB_H += ../include/linux/log2.h
 LIB_H += util/include/linux/const.h
diff --git a/tools/perf/util/include/linux/bitops.h b/tools/perf/util/include/linux/bitops.h
index 292aadeb66c5..5237bc9f6266 100644
--- a/tools/perf/util/include/linux/bitops.h
+++ b/tools/perf/util/include/linux/bitops.h
@@ -1,5 +1,5 @@
-#ifndef _PERF_LINUX_BITOPS_H_
-#define _PERF_LINUX_BITOPS_H_
+#ifndef _TOOLS_LINUX_BITOPS_H_
+#define _TOOLS_LINUX_BITOPS_H_
 
 #include <linux/kernel.h>
 #include <linux/compiler.h>
@@ -19,6 +19,14 @@
 #define BITS_TO_U32(nr)		DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u32))
 #define BITS_TO_BYTES(nr)	DIV_ROUND_UP(nr, BITS_PER_BYTE)
 
+/*
+ * Include this here because some architectures need generic_ffs/fls in
+ * scope
+ *
+ * XXX: this needs to be asm/bitops.h, when we get to per arch optimizations
+ */
+#include <asm-generic/bitops.h>
+
 #define for_each_set_bit(bit, addr, size) \
 	for ((bit) = find_first_bit((addr), (size));		\
 	     (bit) < (size);					\
@@ -30,14 +38,9 @@
 	     (bit) < (size);					\
 	     (bit) = find_next_bit((addr), (size), (bit) + 1))
 
-#include <asm-generic/bitops/atomic.h>
-
 static inline unsigned long hweight_long(unsigned long w)
 {
 	return sizeof(w) == 4 ? hweight32(w) : hweight64(w);
 }
 
-#include <asm-generic/bitops/__ffs.h>
-#include <asm-generic/bitops/find.h>
-
 #endif
-- 
1.9.3

[PATCH 12/18] tools: Move bitops.h from tools/perf/util to tools/

[Arnaldo Carvalho de Melo]

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

So that we better mirror the kernel sources and make it available for
other tools.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-mvfu6x753tksnto3t6412m93@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/include/linux/bitops.h           | 46 ++++++++++++++++++++++++++++++++++
 tools/perf/MANIFEST                    |  1 +
 tools/perf/Makefile.perf               |  2 +-
 tools/perf/util/include/linux/bitops.h | 46 ----------------------------------
 4 files changed, 48 insertions(+), 47 deletions(-)
 create mode 100644 tools/include/linux/bitops.h
 delete mode 100644 tools/perf/util/include/linux/bitops.h

diff --git a/tools/include/linux/bitops.h b/tools/include/linux/bitops.h
new file mode 100644
index 000000000000..5237bc9f6266
--- /dev/null
+++ b/tools/include/linux/bitops.h
@@ -0,0 +1,46 @@
+#ifndef _TOOLS_LINUX_BITOPS_H_
+#define _TOOLS_LINUX_BITOPS_H_
+
+#include <linux/kernel.h>
+#include <linux/compiler.h>
+#include <asm/hweight.h>
+
+#ifndef __WORDSIZE
+#define __WORDSIZE (__SIZEOF_LONG__ * 8)
+#endif
+
+#define BITS_PER_LONG __WORDSIZE
+
+#define BIT_MASK(nr)		(1UL << ((nr) % BITS_PER_LONG))
+#define BIT_WORD(nr)		((nr) / BITS_PER_LONG)
+#define BITS_PER_BYTE		8
+#define BITS_TO_LONGS(nr)	DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
+#define BITS_TO_U64(nr)		DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u64))
+#define BITS_TO_U32(nr)		DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u32))
+#define BITS_TO_BYTES(nr)	DIV_ROUND_UP(nr, BITS_PER_BYTE)
+
+/*
+ * Include this here because some architectures need generic_ffs/fls in
+ * scope
+ *
+ * XXX: this needs to be asm/bitops.h, when we get to per arch optimizations
+ */
+#include <asm-generic/bitops.h>
+
+#define for_each_set_bit(bit, addr, size) \
+	for ((bit) = find_first_bit((addr), (size));		\
+	     (bit) < (size);					\
+	     (bit) = find_next_bit((addr), (size), (bit) + 1))
+
+/* same as for_each_set_bit() but use bit as value to start with */
+#define for_each_set_bit_from(bit, addr, size) \
+	for ((bit) = find_next_bit((addr), (size), (bit));	\
+	     (bit) < (size);					\
+	     (bit) = find_next_bit((addr), (size), (bit) + 1))
+
+static inline unsigned long hweight_long(unsigned long w)
+{
+	return sizeof(w) == 4 ? hweight32(w) : hweight64(w);
+}
+
+#endif
diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST
index 86f115cdbb5b..7729af9f417a 100644
--- a/tools/perf/MANIFEST
+++ b/tools/perf/MANIFEST
@@ -10,6 +10,7 @@ tools/include/asm-generic/bitops/atomic.h
 tools/include/asm-generic/bitops/__ffs.h
 tools/include/asm-generic/bitops/find.h
 tools/include/asm-generic/bitops.h
+tools/include/linux/bitops.h
 tools/include/linux/compiler.h
 tools/include/linux/export.h
 tools/include/linux/hash.h
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index d9bf9685e9da..55b9c97cafc2 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -231,7 +231,7 @@ LIB_H += ../../include/uapi/linux/const.h
 LIB_H += ../include/linux/hash.h
 LIB_H += ../../include/linux/stringify.h
 LIB_H += util/include/linux/bitmap.h
-LIB_H += util/include/linux/bitops.h
+LIB_H += ../include/linux/bitops.h
 LIB_H += ../include/asm-generic/bitops/atomic.h 
 LIB_H += ../include/asm-generic/bitops/find.h 
 LIB_H += ../include/asm-generic/bitops/__ffs.h 
diff --git a/tools/perf/util/include/linux/bitops.h b/tools/perf/util/include/linux/bitops.h
deleted file mode 100644
index 5237bc9f6266..000000000000
--- a/tools/perf/util/include/linux/bitops.h
+++ /dev/null
@@ -1,46 +0,0 @@
-#ifndef _TOOLS_LINUX_BITOPS_H_
-#define _TOOLS_LINUX_BITOPS_H_
-
-#include <linux/kernel.h>
-#include <linux/compiler.h>
-#include <asm/hweight.h>
-
-#ifndef __WORDSIZE
-#define __WORDSIZE (__SIZEOF_LONG__ * 8)
-#endif
-
-#define BITS_PER_LONG __WORDSIZE
-
-#define BIT_MASK(nr)		(1UL << ((nr) % BITS_PER_LONG))
-#define BIT_WORD(nr)		((nr) / BITS_PER_LONG)
-#define BITS_PER_BYTE		8
-#define BITS_TO_LONGS(nr)	DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
-#define BITS_TO_U64(nr)		DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u64))
-#define BITS_TO_U32(nr)		DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u32))
-#define BITS_TO_BYTES(nr)	DIV_ROUND_UP(nr, BITS_PER_BYTE)
-
-/*
- * Include this here because some architectures need generic_ffs/fls in
- * scope
- *
- * XXX: this needs to be asm/bitops.h, when we get to per arch optimizations
- */
-#include <asm-generic/bitops.h>
-
-#define for_each_set_bit(bit, addr, size) \
-	for ((bit) = find_first_bit((addr), (size));		\
-	     (bit) < (size);					\
-	     (bit) = find_next_bit((addr), (size), (bit) + 1))
-
-/* same as for_each_set_bit() but use bit as value to start with */
-#define for_each_set_bit_from(bit, addr, size) \
-	for ((bit) = find_next_bit((addr), (size), (bit));	\
-	     (bit) < (size);					\
-	     (bit) = find_next_bit((addr), (size), (bit) + 1))
-
-static inline unsigned long hweight_long(unsigned long w)
-{
-	return sizeof(w) == 4 ? hweight32(w) : hweight64(w);
-}
-
-#endif
-- 
1.9.3

[PATCH 13/18] tools: Adopt fls_long and deps

[Arnaldo Carvalho de Melo]

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

Will be used when adopting rounddown_pow_of_two.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-9m0tt5300q1ygv51hejjas82@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/include/asm-generic/bitops.h       | 3 +++
 tools/include/asm-generic/bitops/__fls.h | 1 +
 tools/include/asm-generic/bitops/fls.h   | 1 +
 tools/include/asm-generic/bitops/fls64.h | 1 +
 tools/include/linux/bitops.h             | 7 +++++++
 tools/perf/MANIFEST                      | 3 +++
 tools/perf/Makefile.perf                 | 3 +++
 7 files changed, 19 insertions(+)
 create mode 100644 tools/include/asm-generic/bitops/__fls.h
 create mode 100644 tools/include/asm-generic/bitops/fls.h
 create mode 100644 tools/include/asm-generic/bitops/fls64.h

diff --git a/tools/include/asm-generic/bitops.h b/tools/include/asm-generic/bitops.h
index 6dfd9d5fd828..6eedba1f7732 100644
--- a/tools/include/asm-generic/bitops.h
+++ b/tools/include/asm-generic/bitops.h
@@ -13,6 +13,9 @@
  */
 
 #include <asm-generic/bitops/__ffs.h>
+#include <asm-generic/bitops/fls.h>
+#include <asm-generic/bitops/__fls.h>
+#include <asm-generic/bitops/fls64.h>
 #include <asm-generic/bitops/find.h>
 
 #ifndef _TOOLS_LINUX_BITOPS_H_
diff --git a/tools/include/asm-generic/bitops/__fls.h b/tools/include/asm-generic/bitops/__fls.h
new file mode 100644
index 000000000000..2218b9add4c1
--- /dev/null
+++ b/tools/include/asm-generic/bitops/__fls.h
@@ -0,0 +1 @@
+#include <../../../../include/asm-generic/bitops/__fls.h>
diff --git a/tools/include/asm-generic/bitops/fls.h b/tools/include/asm-generic/bitops/fls.h
new file mode 100644
index 000000000000..dbf711a28f71
--- /dev/null
+++ b/tools/include/asm-generic/bitops/fls.h
@@ -0,0 +1 @@
+#include <../../../../include/asm-generic/bitops/fls.h>
diff --git a/tools/include/asm-generic/bitops/fls64.h b/tools/include/asm-generic/bitops/fls64.h
new file mode 100644
index 000000000000..980b1f63c047
--- /dev/null
+++ b/tools/include/asm-generic/bitops/fls64.h
@@ -0,0 +1 @@
+#include <../../../../include/asm-generic/bitops/fls64.h>
diff --git a/tools/include/linux/bitops.h b/tools/include/linux/bitops.h
index 5237bc9f6266..26005a15e7e2 100644
--- a/tools/include/linux/bitops.h
+++ b/tools/include/linux/bitops.h
@@ -43,4 +43,11 @@ static inline unsigned long hweight_long(unsigned long w)
 	return sizeof(w) == 4 ? hweight32(w) : hweight64(w);
 }
 
+static inline unsigned fls_long(unsigned long l)
+{
+	if (sizeof(l) == 4)
+		return fls(l);
+	return fls64(l);
+}
+
 #endif
diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST
index 7729af9f417a..0c6cc8de007f 100644
--- a/tools/perf/MANIFEST
+++ b/tools/perf/MANIFEST
@@ -8,7 +8,10 @@ tools/lib/util/find_next_bit.c
 tools/include/asm/bug.h
 tools/include/asm-generic/bitops/atomic.h
 tools/include/asm-generic/bitops/__ffs.h
+tools/include/asm-generic/bitops/__fls.h
 tools/include/asm-generic/bitops/find.h
+tools/include/asm-generic/bitops/fls64.h
+tools/include/asm-generic/bitops/fls.h
 tools/include/asm-generic/bitops.h
 tools/include/linux/bitops.h
 tools/include/linux/compiler.h
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 55b9c97cafc2..6b7153f8b056 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -234,7 +234,10 @@ LIB_H += util/include/linux/bitmap.h
 LIB_H += ../include/linux/bitops.h
 LIB_H += ../include/asm-generic/bitops/atomic.h 
 LIB_H += ../include/asm-generic/bitops/find.h 
+LIB_H += ../include/asm-generic/bitops/fls64.h
+LIB_H += ../include/asm-generic/bitops/fls.h
 LIB_H += ../include/asm-generic/bitops/__ffs.h 
+LIB_H += ../include/asm-generic/bitops/__fls.h
 LIB_H += ../include/asm-generic/bitops.h
 LIB_H += ../include/linux/compiler.h
 LIB_H += ../include/linux/log2.h
-- 
1.9.3

[PATCH 14/18] tools: Adopt rounddown_pow_of_two and deps

[Arnaldo Carvalho de Melo]

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

Will be used to make sure we pass a power of two when automatically
setting up the perf_mmap addr range length, as the kernel code
validating input on /proc/sys/kernel/perf_event_mlock_kb accepts any
integer, if we plain use it to set up the mmap lenght, we may get an
EINVAL when passing a non power of two.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-zflvep0q01dmkruf4o291l4p@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/include/linux/log2.h | 134 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 134 insertions(+)

diff --git a/tools/include/linux/log2.h b/tools/include/linux/log2.h
index 141b7665d842..990b138362d6 100644
--- a/tools/include/linux/log2.h
+++ b/tools/include/linux/log2.h
@@ -13,6 +13,30 @@
 #define _TOOLS_LINUX_LOG2_H
 
 /*
+ * deal with unrepresentable constant logarithms
+ */
+extern __attribute__((const, noreturn))
+int ____ilog2_NaN(void);
+
+/*
+ * non-constant log of base 2 calculators
+ * - the arch may override these in asm/bitops.h if they can be implemented
+ *   more efficiently than using fls() and fls64()
+ * - the arch is not required to handle n==0 if implementing the fallback
+ */
+static inline __attribute__((const))
+int __ilog2_u32(u32 n)
+{
+	return fls(n) - 1;
+}
+
+static inline __attribute__((const))
+int __ilog2_u64(u64 n)
+{
+	return fls64(n) - 1;
+}
+
+/*
  *  Determine whether some value is a power of two, where zero is
  * *not* considered a power of two.
  */
@@ -23,4 +47,114 @@ bool is_power_of_2(unsigned long n)
 	return (n != 0 && ((n & (n - 1)) == 0));
 }
 
+/*
+ * round down to nearest power of two
+ */
+static inline __attribute__((const))
+unsigned long __rounddown_pow_of_two(unsigned long n)
+{
+	return 1UL << (fls_long(n) - 1);
+}
+
+/**
+ * ilog2 - log of base 2 of 32-bit or a 64-bit unsigned value
+ * @n - parameter
+ *
+ * constant-capable log of base 2 calculation
+ * - this can be used to initialise global variables from constant data, hence
+ *   the massive ternary operator construction
+ *
+ * selects the appropriately-sized optimised version depending on sizeof(n)
+ */
+#define ilog2(n)				\
+(						\
+	__builtin_constant_p(n) ? (		\
+		(n) < 1 ? ____ilog2_NaN() :	\
+		(n) & (1ULL << 63) ? 63 :	\
+		(n) & (1ULL << 62) ? 62 :	\
+		(n) & (1ULL << 61) ? 61 :	\
+		(n) & (1ULL << 60) ? 60 :	\
+		(n) & (1ULL << 59) ? 59 :	\
+		(n) & (1ULL << 58) ? 58 :	\
+		(n) & (1ULL << 57) ? 57 :	\
+		(n) & (1ULL << 56) ? 56 :	\
+		(n) & (1ULL << 55) ? 55 :	\
+		(n) & (1ULL << 54) ? 54 :	\
+		(n) & (1ULL << 53) ? 53 :	\
+		(n) & (1ULL << 52) ? 52 :	\
+		(n) & (1ULL << 51) ? 51 :	\
+		(n) & (1ULL << 50) ? 50 :	\
+		(n) & (1ULL << 49) ? 49 :	\
+		(n) & (1ULL << 48) ? 48 :	\
+		(n) & (1ULL << 47) ? 47 :	\
+		(n) & (1ULL << 46) ? 46 :	\
+		(n) & (1ULL << 45) ? 45 :	\
+		(n) & (1ULL << 44) ? 44 :	\
+		(n) & (1ULL << 43) ? 43 :	\
+		(n) & (1ULL << 42) ? 42 :	\
+		(n) & (1ULL << 41) ? 41 :	\
+		(n) & (1ULL << 40) ? 40 :	\
+		(n) & (1ULL << 39) ? 39 :	\
+		(n) & (1ULL << 38) ? 38 :	\
+		(n) & (1ULL << 37) ? 37 :	\
+		(n) & (1ULL << 36) ? 36 :	\
+		(n) & (1ULL << 35) ? 35 :	\
+		(n) & (1ULL << 34) ? 34 :	\
+		(n) & (1ULL << 33) ? 33 :	\
+		(n) & (1ULL << 32) ? 32 :	\
+		(n) & (1ULL << 31) ? 31 :	\
+		(n) & (1ULL << 30) ? 30 :	\
+		(n) & (1ULL << 29) ? 29 :	\
+		(n) & (1ULL << 28) ? 28 :	\
+		(n) & (1ULL << 27) ? 27 :	\
+		(n) & (1ULL << 26) ? 26 :	\
+		(n) & (1ULL << 25) ? 25 :	\
+		(n) & (1ULL << 24) ? 24 :	\
+		(n) & (1ULL << 23) ? 23 :	\
+		(n) & (1ULL << 22) ? 22 :	\
+		(n) & (1ULL << 21) ? 21 :	\
+		(n) & (1ULL << 20) ? 20 :	\
+		(n) & (1ULL << 19) ? 19 :	\
+		(n) & (1ULL << 18) ? 18 :	\
+		(n) & (1ULL << 17) ? 17 :	\
+		(n) & (1ULL << 16) ? 16 :	\
+		(n) & (1ULL << 15) ? 15 :	\
+		(n) & (1ULL << 14) ? 14 :	\
+		(n) & (1ULL << 13) ? 13 :	\
+		(n) & (1ULL << 12) ? 12 :	\
+		(n) & (1ULL << 11) ? 11 :	\
+		(n) & (1ULL << 10) ? 10 :	\
+		(n) & (1ULL <<  9) ?  9 :	\
+		(n) & (1ULL <<  8) ?  8 :	\
+		(n) & (1ULL <<  7) ?  7 :	\
+		(n) & (1ULL <<  6) ?  6 :	\
+		(n) & (1ULL <<  5) ?  5 :	\
+		(n) & (1ULL <<  4) ?  4 :	\
+		(n) & (1ULL <<  3) ?  3 :	\
+		(n) & (1ULL <<  2) ?  2 :	\
+		(n) & (1ULL <<  1) ?  1 :	\
+		(n) & (1ULL <<  0) ?  0 :	\
+		____ilog2_NaN()			\
+				   ) :		\
+	(sizeof(n) <= 4) ?			\
+	__ilog2_u32(n) :			\
+	__ilog2_u64(n)				\
+ )
+
+
+/**
+ * rounddown_pow_of_two - round the given value down to nearest power of two
+ * @n - parameter
+ *
+ * round the given value down to the nearest power of two
+ * - the result is undefined when n == 0
+ * - this can be used to initialise global variables from constant data
+ */
+#define rounddown_pow_of_two(n)			\
+(						\
+	__builtin_constant_p(n) ? (		\
+		(1UL << ilog2(n))) :		\
+	__rounddown_pow_of_two(n)		\
+ )
+
 #endif /* _TOOLS_LINUX_LOG2_H */
-- 
1.9.3

[PATCH 15/18] perf tools: Make the mmap length autotuning more robust

[Arnaldo Carvalho de Melo]

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

If /proc/sys/kernel/perf_event_mlock_kb is not (power of 2 + PAGE_SIZE_in_kb)
and we let the perf tools do mmap length autosizing based on that, then, for
non-CAP_IPC_LOCK users when /proc/sys/kernel/perf_event_paranoid is > -1, then
we get an -EINVAL that ends up in:

  [acme@ssdandy linux]$ trace usleep 1
  Invalid argument
  [acme@ssdandy linux]$ perf record usleep 1
  failed to mmap with 22 (Invalid argument)

After this fix:

  [acme@ssdandy linux]$ trace usleep 1
  <SNIP>
   0.806 ( 0.006 ms): munmap(addr: 0x7f7e4740a000, len: 66467) = 0
   0.869 ( 0.002 ms): brk(                                   ) = 0x7bb000
   0.873 ( 0.003 ms): brk(brk: 0x7dc000                      ) = 0x7dc000
   0.877 ( 0.001 ms): brk(                                   ) = 0x7dc000
   0.953 ( 0.058 ms): nanosleep(rqtp: 0x7fff26ab9420         ) = 0
   0.959 ( 0.000 ms): exit_group(
  [acme@ssdandy linux]$ perf record usleep 1
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 0.017 MB perf.data (~759 samples) ]
  [acme@ssdandy linux]$

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-6p6l5ou6jev6o7ymc4nn1n2a@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/evlist.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 8eb92cf5d552..7d88327d94a9 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -909,6 +909,8 @@ static size_t perf_evlist__mmap_size(unsigned long pages)
 		}
 
 		pages = (max * 1024) / page_size;
+		if (!is_power_of_2(pages))
+			pages = rounddown_pow_of_two(pages);
 	} else if (!is_power_of_2(pages))
 		return 0;
 
-- 
1.9.3

[PATCH 16/18] tools: Adopt roundup_pow_of_two

[Arnaldo Carvalho de Melo]

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

To replace equivalent code used in the mmap_pages command line
parameter handling in tools/perf.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-i44zs02xt4zexfxywpklo7km@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/include/linux/log2.h | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/tools/include/linux/log2.h b/tools/include/linux/log2.h
index 990b138362d6..41446668ccce 100644
--- a/tools/include/linux/log2.h
+++ b/tools/include/linux/log2.h
@@ -48,6 +48,15 @@ bool is_power_of_2(unsigned long n)
 }
 
 /*
+ * round up to nearest power of two
+ */
+static inline __attribute__((const))
+unsigned long __roundup_pow_of_two(unsigned long n)
+{
+	return 1UL << fls_long(n - 1);
+}
+
+/*
  * round down to nearest power of two
  */
 static inline __attribute__((const))
@@ -141,6 +150,22 @@ unsigned long __rounddown_pow_of_two(unsigned long n)
 	__ilog2_u64(n)				\
  )
 
+/**
+ * roundup_pow_of_two - round the given value up to nearest power of two
+ * @n - parameter
+ *
+ * round the given value up to the nearest power of two
+ * - the result is undefined when n == 0
+ * - this can be used to initialise global variables from constant data
+ */
+#define roundup_pow_of_two(n)			\
+(						\
+	__builtin_constant_p(n) ? (		\
+		(n == 1) ? 1 :			\
+		(1UL << (ilog2((n) - 1) + 1))	\
+				   ) :		\
+	__roundup_pow_of_two(n)			\
+ )
 
 /**
  * rounddown_pow_of_two - round the given value down to nearest power of two
-- 
1.9.3

[PATCH 17/18] perf evlist: Use roundup_pow_of_two

[Arnaldo Carvalho de Melo]

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

And remove the equivalent next_pow2{_l} functions.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-hl9ct3wcbs5deai3v5ljmuws@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/evlist.c |  2 +-
 tools/perf/util/util.h   | 18 ------------------
 2 files changed, 1 insertion(+), 19 deletions(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 7d88327d94a9..cbab1fb77b1d 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -948,7 +948,7 @@ static long parse_pages_arg(const char *str, unsigned long min,
 		/* leave number of pages at 0 */
 	} else if (!is_power_of_2(pages)) {
 		/* round pages up to next power of 2 */
-		pages = next_pow2_l(pages);
+		pages = roundup_pow_of_two(pages);
 		if (!pages)
 			return -EINVAL;
 		pr_info("rounding mmap pages size to %lu bytes (%lu pages)\n",
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 25b22bbea066..be198ac27031 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -269,24 +269,6 @@ void event_attr_init(struct perf_event_attr *attr);
 #define _STR(x) #x
 #define STR(x) _STR(x)
 
-static inline unsigned next_pow2(unsigned x)
-{
-	if (!x)
-		return 1;
-	return 1ULL << (32 - __builtin_clz(x - 1));
-}
-
-static inline unsigned long next_pow2_l(unsigned long x)
-{
-#if BITS_PER_LONG == 64
-	if (x <= (1UL << 31))
-		return next_pow2(x);
-	return (unsigned long)next_pow2(x >> 32) << 32;
-#else
-	return next_pow2(x);
-#endif
-}
-
 size_t hex_width(u64 v);
 int hex2u64(const char *ptr, u64 *val);
 
-- 
1.9.3

[PATCH 18/18] perf symbols: Fix use after free in filename__read_build_id

[Arnaldo Carvalho de Melo]

From: Mitchell Krome <mitchellkrome@gmail.com>

In filename__read_build_id, phdr points to memory in buf, which gets realloced
before a call to fseek that uses phdr->p_offset. This change stores the value
of p_offset before buf is realloced, so the fseek can use the value safely.

Signed-off-by: Mitchell Krome <mitchellkrome@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20141216021612.GA7199@mitchell
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/symbol-minimal.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/symbol-minimal.c b/tools/perf/util/symbol-minimal.c
index fa585c63f56a..d7efb03b3f9a 100644
--- a/tools/perf/util/symbol-minimal.c
+++ b/tools/perf/util/symbol-minimal.c
@@ -129,6 +129,7 @@ int filename__read_build_id(const char *filename, void *bf, size_t size)
 
 		for (i = 0, phdr = buf; i < ehdr.e_phnum; i++, phdr++) {
 			void *tmp;
+			long offset;
 
 			if (need_swap) {
 				phdr->p_type = bswap_32(phdr->p_type);
@@ -140,12 +141,13 @@ int filename__read_build_id(const char *filename, void *bf, size_t size)
 				continue;
 
 			buf_size = phdr->p_filesz;
+			offset = phdr->p_offset;
 			tmp = realloc(buf, buf_size);
 			if (tmp == NULL)
 				goto out_free;
 
 			buf = tmp;
-			fseek(fp, phdr->p_offset, SEEK_SET);
+			fseek(fp, offset, SEEK_SET);
 			if (fread(buf, buf_size, 1, fp) != 1)
 				goto out_free;
 
@@ -178,6 +180,7 @@ int filename__read_build_id(const char *filename, void *bf, size_t size)
 
 		for (i = 0, phdr = buf; i < ehdr.e_phnum; i++, phdr++) {
 			void *tmp;
+			long offset;
 
 			if (need_swap) {
 				phdr->p_type = bswap_32(phdr->p_type);
@@ -189,12 +192,13 @@ int filename__read_build_id(const char *filename, void *bf, size_t size)
 				continue;
 
 			buf_size = phdr->p_filesz;
+			offset = phdr->p_offset;
 			tmp = realloc(buf, buf_size);
 			if (tmp == NULL)
 				goto out_free;
 
 			buf = tmp;
-			fseek(fp, phdr->p_offset, SEEK_SET);
+			fseek(fp, offset, SEEK_SET);
 			if (fread(buf, buf_size, 1, fp) != 1)
 				goto out_free;
 
-- 
1.9.3

Re: [PATCH 05/18] perf evlist: Do not use hard coded value for a mmap_pages default

[Jiri Olsa]

On Tue, Dec 16, 2014 at 01:57:07PM -0300, Arnaldo Carvalho de Melo wrote:
> From: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> So far what is in there by default is what we were using: 512KB + the
> control page, but the admin may change that, and if it does to a smaller
> value, all calls to tooling for non root users start failing, requiring
> that the user manually set --mmap_pages/-m.
> 
> Use instead what is in /proc/sys/kernel/perf_event_mlock_kb.
> 
> Cc: Adrian Hunter <adrian.hunter@intel.com>
> Cc: Borislav Petkov <bp@suse.de>
> Cc: David Ahern <dsahern@gmail.com>
> Cc: Don Zickus <dzickus@redhat.com>
> Cc: Frederic Weisbecker <fweisbec@gmail.com>
> Cc: Jiri Olsa <jolsa@redhat.com>
> Cc: Mike Galbraith <efault@gmx.de>
> Cc: Namhyung Kim <namhyung@kernel.org>
> Cc: Paul Mackerras <paulus@samba.org>
> Cc: Peter Zijlstra <peterz@infradead.org>
> Cc: Stephane Eranian <eranian@google.com>
> Link: http://lkml.kernel.org/n/tip-2f6mtm8xu3wo5lhkql6jdblh@git.kernel.org
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> ---
>  tools/perf/util/evlist.c | 20 ++++++++++++++++----
>  1 file changed, 16 insertions(+), 4 deletions(-)
> 
> diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
> index 7847f3885081..ac808680e61c 100644
> --- a/tools/perf/util/evlist.c
> +++ b/tools/perf/util/evlist.c
> @@ -893,10 +893,22 @@ out_unmap:
>  
>  static size_t perf_evlist__mmap_size(unsigned long pages)
>  {
> -	/* 512 kiB: default amount of unprivileged mlocked memory */
> -	if (pages == UINT_MAX)
> -		pages = (512 * 1024) / page_size;
> -	else if (!is_power_of_2(pages))
> +	if (pages == UINT_MAX) {
> +		int max;
> +
> +		if (sysctl__read_int("kernel/perf_event_mlock_kb", &max) < 0) {
> +			/*
> +			 * Pick a once upon a time good value, i.e. things look
> +			 * strange since we can't read a sysctl value, but lets not
> +			 * die yet...
> +			 */
> +			max = 512;
> +		} else {
> +			max -= (page_size / 1024);
> +		}

so this way you depend on value in perf_event_mlock_kb being power 2,
otherwise:

# echo 1000 > /proc/sys/kernel/perf_event_mlock_kb
$ perf record ls
failed to mmap with 22 (Invalid argument)

maybe you could use the logic/code from parse_pages_arg function

jirka

Re: [PATCH 06/18] tools: Move __ffs implementation to tools/include/asm-generic/bitops/__ffs.h

[Jiri Olsa]

On Tue, Dec 16, 2014 at 01:57:08PM -0300, Arnaldo Carvalho de Melo wrote:

SNIP

> +	}
> +	if ((word & 0x1) == 0)
> +		num += 1;
> +	return num;
> +}
> +
> +#endif /* _TOOLS_LINUX_ASM_GENERIC_BITOPS___FFS_H_ */
> diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST
> index 344c4d3d0a4a..39c08636357b 100644
> --- a/tools/perf/MANIFEST
> +++ b/tools/perf/MANIFEST
> @@ -5,6 +5,7 @@ tools/lib/api
>  tools/lib/symbol/kallsyms.c
>  tools/lib/symbol/kallsyms.h
>  tools/include/asm/bug.h
> +tools/include/asm-generic/bitops/__ffs.h
>  tools/include/linux/compiler.h
>  tools/include/linux/hash.h
>  tools/include/linux/export.h
> diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
> index 763e68fb5767..bfd86a32254a 100644
> --- a/tools/perf/Makefile.perf
> +++ b/tools/perf/Makefile.perf
> @@ -232,6 +232,7 @@ LIB_H += ../include/linux/hash.h
>  LIB_H += ../../include/linux/stringify.h
>  LIB_H += util/include/linux/bitmap.h
>  LIB_H += util/include/linux/bitops.h
> +LIB_H += ../include/asm-generic/bitops/__ffs.h 

whitespace at the EOLN ;-)

jirka

Re: [PATCH 10/18] tools lib: Move asm-generic/bitops/find.h code to tools/include and tools/lib

[Jiri Olsa]

On Tue, Dec 16, 2014 at 01:57:12PM -0300, Arnaldo Carvalho de Melo wrote:
> From: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> To match the Linux kernel source code structure from where this code came from.

SNIP

> +			goto found;
> +		result += BITS_PER_LONG;
> +		size -= BITS_PER_LONG;
> +	}
> +	if (!size)
> +		return result;
> +
> +	tmp = (*p) & (~0UL >> (BITS_PER_LONG - size));
> +	if (tmp == 0UL)		/* Are any bits set? */
> +		return result + size;	/* Nope. */
> +found:
> +	return result + __ffs(tmp);
> +}
> +#endif
> diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST
> index 67d48e20f7e1..bfd7e22bafad 100644
> --- a/tools/perf/MANIFEST
> +++ b/tools/perf/MANIFEST
> @@ -4,8 +4,10 @@ tools/lib/traceevent
>  tools/lib/api
>  tools/lib/symbol/kallsyms.c
>  tools/lib/symbol/kallsyms.h
> +tools/lib/util/find_next_bit.c

hum, I had the impression that we will move 'generic' things under 'api' to
be built separatelly.. so whats the current notion? ;-)

what kind of code belongs to 'lib/api/...' and what to 'lib/...' ?

thanks,
jirka

Re: [PATCH 10/18] tools lib: Move asm-generic/bitops/find.h code to tools/include and tools/lib

[Jiri Olsa]

On Tue, Dec 16, 2014 at 01:57:12PM -0300, Arnaldo Carvalho de Melo wrote:
> From: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> To match the Linux kernel source code structure from where this code came from.

SNIP

> diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST
> index 67d48e20f7e1..bfd7e22bafad 100644
> --- a/tools/perf/MANIFEST
> +++ b/tools/perf/MANIFEST
> @@ -4,8 +4,10 @@ tools/lib/traceevent
>  tools/lib/api
>  tools/lib/symbol/kallsyms.c
>  tools/lib/symbol/kallsyms.h
> +tools/lib/util/find_next_bit.c
>  tools/include/asm/bug.h
>  tools/include/asm-generic/bitops/atomic.h
> +tools/include/asm-generic/bitops/find.h
>  tools/include/asm-generic/bitops/__ffs.h
>  tools/include/linux/compiler.h
>  tools/include/linux/export.h
> @@ -18,6 +20,7 @@ include/linux/rbtree.h
>  include/linux/list.h
>  include/linux/hash.h
>  include/linux/stringify.h
> +lib/find_next_bit.c
>  lib/rbtree.c
>  include/linux/swab.h
>  arch/*/include/asm/unistd*.h
> diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
> index fc4082fdf6bf..2d799da4eacc 100644
> --- a/tools/perf/Makefile.perf
> +++ b/tools/perf/Makefile.perf
> @@ -233,6 +233,7 @@ LIB_H += ../../include/linux/stringify.h
>  LIB_H += util/include/linux/bitmap.h
>  LIB_H += util/include/linux/bitops.h
>  LIB_H += ../include/asm-generic/bitops/atomic.h 
> +LIB_H += ../include/asm-generic/bitops/find.h 

whitespace at the EOLN ;-)

jirka

Re: [PATCH 15/18] perf tools: Make the mmap length autotuning more robust

[Jiri Olsa]

On Tue, Dec 16, 2014 at 01:57:17PM -0300, Arnaldo Carvalho de Melo wrote:
> From: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> If /proc/sys/kernel/perf_event_mlock_kb is not (power of 2 + PAGE_SIZE_in_kb)
> and we let the perf tools do mmap length autosizing based on that, then, for
> non-CAP_IPC_LOCK users when /proc/sys/kernel/perf_event_paranoid is > -1, then
> we get an -EINVAL that ends up in:
> 
>   [acme@ssdandy linux]$ trace usleep 1
>   Invalid argument
>   [acme@ssdandy linux]$ perf record usleep 1
>   failed to mmap with 22 (Invalid argument)
> 
> After this fix:
> 
>   [acme@ssdandy linux]$ trace usleep 1
>   <SNIP>
>    0.806 ( 0.006 ms): munmap(addr: 0x7f7e4740a000, len: 66467) = 0
>    0.869 ( 0.002 ms): brk(                                   ) = 0x7bb000
>    0.873 ( 0.003 ms): brk(brk: 0x7dc000                      ) = 0x7dc000
>    0.877 ( 0.001 ms): brk(                                   ) = 0x7dc000
>    0.953 ( 0.058 ms): nanosleep(rqtp: 0x7fff26ab9420         ) = 0
>    0.959 ( 0.000 ms): exit_group(
>   [acme@ssdandy linux]$ perf record usleep 1
>   [ perf record: Woken up 1 times to write data ]
>   [ perf record: Captured and wrote 0.017 MB perf.data (~759 samples) ]
>   [acme@ssdandy linux]$
> 
> Cc: Adrian Hunter <adrian.hunter@intel.com>
> Cc: Borislav Petkov <bp@suse.de>
> Cc: David Ahern <dsahern@gmail.com>
> Cc: Don Zickus <dzickus@redhat.com>
> Cc: Frederic Weisbecker <fweisbec@gmail.com>
> Cc: Jiri Olsa <jolsa@redhat.com>
> Cc: Mike Galbraith <efault@gmx.de>
> Cc: Namhyung Kim <namhyung@kernel.org>
> Cc: Paul Mackerras <paulus@samba.org>
> Cc: Peter Zijlstra <peterz@infradead.org>
> Cc: Stephane Eranian <eranian@google.com>
> Link: http://lkml.kernel.org/n/tip-6p6l5ou6jev6o7ymc4nn1n2a@git.kernel.org
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> ---
>  tools/perf/util/evlist.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
> index 8eb92cf5d552..7d88327d94a9 100644
> --- a/tools/perf/util/evlist.c
> +++ b/tools/perf/util/evlist.c
> @@ -909,6 +909,8 @@ static size_t perf_evlist__mmap_size(unsigned long pages)
>  		}
>  
>  		pages = (max * 1024) / page_size;
> +		if (!is_power_of_2(pages))
> +			pages = rounddown_pow_of_two(pages);

ok then ;-)

jirka

Re: [PATCH 05/18] perf evlist: Do not use hard coded value for a mmap_pages default

[Arnaldo Carvalho de Melo]

Em Wed, Dec 17, 2014 at 02:23:30PM +0100, Jiri Olsa escreveu:
> On Tue, Dec 16, 2014 at 01:57:07PM -0300, Arnaldo Carvalho de Melo wrote:
> > +	if (pages == UINT_MAX) {
> > +		int max;
> > +
> > +		if (sysctl__read_int("kernel/perf_event_mlock_kb", &max) < 0) {
> > +			/*
> > +			 * Pick a once upon a time good value, i.e. things look
> > +			 * strange since we can't read a sysctl value, but lets not
> > +			 * die yet...
> > +			 */
> > +			max = 512;
> > +		} else {
> > +			max -= (page_size / 1024);
> > +		}
 
> so this way you depend on value in perf_event_mlock_kb being power 2,
> otherwise:

> # echo 1000 > /proc/sys/kernel/perf_event_mlock_kb
> $ perf record ls
> failed to mmap with 22 (Invalid argument)

Right, I thought that perf_event_mlock_kb input was validated, realized
that it is not, see the following patchkit that makes it validate that
after reading, using rounddown_pow_of_two if not.

- Arnaldo
 
> maybe you could use the logic/code from parse_pages_arg function
> 
> jirka

Re: [PATCH 10/18] tools lib: Move asm-generic/bitops/find.h code to tools/include and tools/lib

[Arnaldo Carvalho de Melo]

Em Wed, Dec 17, 2014 at 02:42:23PM +0100, Jiri Olsa escreveu:
> On Tue, Dec 16, 2014 at 01:57:12PM -0300, Arnaldo Carvalho de Melo wrote:
> > +++ b/tools/perf/Makefile.perf
> > @@ -233,6 +233,7 @@ LIB_H += ../../include/linux/stringify.h
> >  LIB_H += util/include/linux/bitmap.h
> >  LIB_H += util/include/linux/bitops.h
> >  LIB_H += ../include/asm-generic/bitops/atomic.h 
> > +LIB_H += ../include/asm-generic/bitops/find.h 
> 
> whitespace at the EOLN ;-)

How could this slip thru? /me scratches head, will check, but I thought
that I catched these things with the .git hooks, humm, three new entries
in Makefile.perf has, three doesn't :-\ Will try to plug this in my
machine setups.

- Arnaldo

Re: [PATCH 10/18] tools lib: Move asm-generic/bitops/find.h code to tools/include and tools/lib

[Arnaldo Carvalho de Melo]

Em Wed, Dec 17, 2014 at 02:41:16PM +0100, Jiri Olsa escreveu:
> On Tue, Dec 16, 2014 at 01:57:12PM -0300, Arnaldo Carvalho de Melo wrote:
> > +++ b/tools/perf/MANIFEST
> > @@ -4,8 +4,10 @@ tools/lib/traceevent
> >  tools/lib/api
> >  tools/lib/symbol/kallsyms.c
> >  tools/lib/symbol/kallsyms.h
> > +tools/lib/util/find_next_bit.c
 
> hum, I had the impression that we will move 'generic' things under 'api' to
> be built separatelly.. so whats the current notion? ;-)
 
> what kind of code belongs to 'lib/api/...' and what to 'lib/...' ?

Well, the reasoning here was that if libkapi is for functions that
provide glue over kernel APIs, which a set of bitmap handling routines
is not, i.e. that is more generic and not strictly related to the
kernel.

- Arnaldo

Re: [PATCH 10/18] tools lib: Move asm-generic/bitops/find.h code to tools/include and tools/lib

[Arnaldo Carvalho de Melo]

Em Wed, Dec 17, 2014 at 11:02:35AM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Wed, Dec 17, 2014 at 02:42:23PM +0100, Jiri Olsa escreveu:
> > On Tue, Dec 16, 2014 at 01:57:12PM -0300, Arnaldo Carvalho de Melo wrote:
> > > +++ b/tools/perf/Makefile.perf
> > > @@ -233,6 +233,7 @@ LIB_H += ../../include/linux/stringify.h
> > >  LIB_H += util/include/linux/bitmap.h
> > >  LIB_H += util/include/linux/bitops.h
> > >  LIB_H += ../include/asm-generic/bitops/atomic.h 
> > > +LIB_H += ../include/asm-generic/bitops/find.h 
> > 
> > whitespace at the EOLN ;-)
> 
> How could this slip thru? /me scratches head, will check, but I thought
> that I catched these things with the .git hooks, humm, three new entries
> in Makefile.perf has, three doesn't :-\ Will try to plug this in my
> machine setups.

I redid the offending csets and put them on a new signed tag:

  perf-core-for-mingo-2

And also force pushed perf/core, i.e. the original stuff is there,
available thru the perf-core-for-mingo signed tag, the fixed up stuff is
on perf/core and on this new signed tag.

Ingo, if you see this, please prefer the fixed up one,

Thanks,

- Arnaldo

Re: [GIT PULL 00/18] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Em Tue, Dec 16, 2014 at 01:57:02PM -0300, Arnaldo Carvalho de Melo escreveu:
> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> The following changes since commit 41e950c033b7df997d4b38653efe6554be9b96a7:
> 
>   Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent (2014-12-12 09:09:52 +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

Ingo,

	Please consider pulling the perf-core-for-mingo-2 signed tag
instead, it is exactly the same content modulo removal of some
whitespaces at the end of a few lines in tools/perf/Makefile.perf that
Jiri found while reading those patches,

Thanks,

- Arnaldo
 
> for you to fetch changes up to 67195c75a87232f055ff415fc4624ef01f24fc3d:
> 
>   perf symbols: Fix use after free in filename__read_build_id (2014-12-16 13:38:28 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible:
> 
> - The mmap address range for the ring buffer now is calculated using the
>   contents of /proc/sys/kernel/perf_event_mlock_kb.
> 
>   This fixes an -EPERM case where 'trace' was trying to use more than what
>   configured on perf_event_mlock_kb. (Arnaldo Carvalho de Melo)
> 
> Infrastructure:
> 
> - Move bitops definitions so that they match the header file hierarchy
>   in the kernel sources where that code came from. (Arnaldo Carvalho de Melo)
> 
> - Adopt round{down,up}_pow_of_two from the kernel and use it instead of
>   equivalent code, so that we reuse more kernel code and make tools/ look
>   more like kernel source code, to encourage further contributions from
>   kernel hackers (Arnaldo Carvalho de Melo)
> 
> - Fix use after free in filename__read_build_id (Mitchell Krome)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (17):
>       perf evlist: Fixup brown paper bag on "hint" for --mmap-pages cmdline arg
>       perf evlist: Clarify sterror_mmap variable names
>       perf evlist: Improve the strerror_mmap method
>       perf trace: Let the perf_evlist__mmap autosize the number of pages to use
>       perf evlist: Do not use hard coded value for a mmap_pages default
>       tools: Move __ffs implementation to tools/include/asm-generic/bitops/__ffs.h
>       tools: Move code originally from linux/log2.h to tools/include/linux/
>       tools: Move code originally from asm-generic/atomic.h into tools/include/asm-generic/
>       tools: Whitespace prep patches for moving bitops.h
>       tools lib: Move asm-generic/bitops/find.h code to tools/include and tools/lib
>       tools: Introduce asm-generic/bitops.h
>       tools: Move bitops.h from tools/perf/util to tools/
>       tools: Adopt fls_long and deps
>       tools: Adopt rounddown_pow_of_two and deps
>       perf tools: Make the mmap length autotuning more robust
>       tools: Adopt roundup_pow_of_two
>       perf evlist: Use roundup_pow_of_two
> 
> Mitchell Krome (1):
>       perf symbols: Fix use after free in filename__read_build_id
> 
>  tools/include/asm-generic/bitops.h        |  27 +++++
>  tools/include/asm-generic/bitops/__ffs.h  |  43 +++++++
>  tools/include/asm-generic/bitops/__fls.h  |   1 +
>  tools/include/asm-generic/bitops/atomic.h |  22 ++++
>  tools/include/asm-generic/bitops/find.h   |  33 ++++++
>  tools/include/asm-generic/bitops/fls.h    |   1 +
>  tools/include/asm-generic/bitops/fls64.h  |   1 +
>  tools/include/linux/bitops.h              |  53 +++++++++
>  tools/include/linux/log2.h                | 185 ++++++++++++++++++++++++++++++
>  tools/lib/util/find_next_bit.c            |  89 ++++++++++++++
>  tools/perf/MANIFEST                       |  13 ++-
>  tools/perf/Makefile.perf                  |  14 ++-
>  tools/perf/builtin-trace.c                |   2 +-
>  tools/perf/util/evlist.c                  |  46 ++++++--
>  tools/perf/util/include/linux/bitops.h    | 162 --------------------------
>  tools/perf/util/symbol-minimal.c          |   8 +-
>  tools/perf/util/util.h                    |  29 -----
>  17 files changed, 522 insertions(+), 207 deletions(-)
>  create mode 100644 tools/include/asm-generic/bitops.h
>  create mode 100644 tools/include/asm-generic/bitops/__ffs.h
>  create mode 100644 tools/include/asm-generic/bitops/__fls.h
>  create mode 100644 tools/include/asm-generic/bitops/atomic.h
>  create mode 100644 tools/include/asm-generic/bitops/find.h
>  create mode 100644 tools/include/asm-generic/bitops/fls.h
>  create mode 100644 tools/include/asm-generic/bitops/fls64.h
>  create mode 100644 tools/include/linux/bitops.h
>  create mode 100644 tools/include/linux/log2.h
>  create mode 100644 tools/lib/util/find_next_bit.c
>  delete mode 100644 tools/perf/util/include/linux/bitops.h
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/

Re: [GIT PULL 00/18] perf/core improvements and fixes

[Ingo Molnar]

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

> Em Tue, Dec 16, 2014 at 01:57:02PM -0300, Arnaldo Carvalho de Melo escreveu:
> > Hi Ingo,
> > 
> > 	Please consider pulling,
> > 
> > - Arnaldo
> > 
> > The following changes since commit 41e950c033b7df997d4b38653efe6554be9b96a7:
> > 
> >   Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent (2014-12-12 09:09:52 +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
> 
> Ingo,
> 
> 	Please consider pulling the perf-core-for-mingo-2 signed tag
> instead, it is exactly the same content modulo removal of some
> whitespaces at the end of a few lines in tools/perf/Makefile.perf that
> Jiri found while reading those patches,

Pulled, thanks a lot!

	Ingo

Re: [GIT PULL 00/18] 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 5aafae8d097e2161ee5c6a12ad532100f8885d2b:
> 
>   Merge tag 'perf-core-for-mingo-4.18-20180516' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2018-05-16 17:56:43 +0200)
> 
> are available in the Git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.18-20180519
> 
> for you to fetch changes up to 19422a9f2a3be7f3a046285ffae4cbb571aa853a:
> 
>   perf tools: Fix kernel_start for PTI on x86 (2018-05-19 06:42:51 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> - Record min/max LBR cycles (>= skylake) and add 'perf annotate' TUI
>   hotkey to show it (c) (Jin Yao)
> 
> - Fix machine->kernel_start for PTI on x86 (Adrian Hunter)
> 
> - Make machine->env->arch always available, e.g. in 'perf top', not
>   just when reading that info from perf.data files (Adrian Hunter)
> 
> - Reduce the number of files read at 'perf' start, leaving information such as
>   cacheline size, tracefs mount point determination, max_stack, etc, to be
>   lazily read as tools needs then (Arnaldo Carvalho de Melo)
> 
> - Fixup BPF include and examples install messages (Arnaldo Carvalho de Melo)
> 
> - Fixup callchain addresses and symbol offsets in 'perf script', to help
>   correlating with objdump output (Sandipan Das)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Adrian Hunter (2):
>       perf machine: Add machine__is() to identify machine arch
>       perf tools: Fix kernel_start for PTI on x86
> 
> Arnaldo Carvalho de Melo (12):
>       perf config: Call perf_config__init() lazily
>       tools lib api: The tracing_mnt variable doesn't need to be global
>       tools lib api: Unexport 'tracing_path' variable
>       tools lib api fs tracing_path: Introduce get/put_events_file() helpers
>       perf tools: Reuse the path to the tracepoint /events/ directory
>       perf parse-events: Use get/put_events_file()
>       tools lib api fs tracing_path: Introduce opendir() method
>       tools lib api fs tracing_path: Make tracing_events_path private
>       tools include compiler-gcc: Add __pure attribute helper
>       perf tools: Read the cache line size lazily
>       perf tools: No need to unconditionally read the max_stack sysctls
>       perf bpf: Fixup include and examples install messages
> 
> Jin Yao (2):
>       perf annotate: Record the min/max cycles
>       perf annotate: Create hotkey 'c' to show min/max cycles
> 
> Sandipan Das (2):
>       perf script: Show virtual addresses instead of offsets
>       perf script: Show symbol offsets by default
> 
>  tools/include/linux/compiler-gcc.h                 |  3 +
>  tools/lib/api/fs/tracing_path.c                    | 40 +++++++++---
>  tools/lib/api/fs/tracing_path.h                    |  9 ++-
>  tools/perf/Makefile.perf                           |  2 +
>  tools/perf/builtin-script.c                        | 26 ++++----
>  tools/perf/builtin-top.c                           |  2 +-
>  tools/perf/builtin-trace.c                         |  2 +-
>  tools/perf/perf.c                                  | 24 +------
>  tools/perf/tests/parse-events.c                    |  9 +--
>  .../tests/shell/record+probe_libc_inet_pton.sh     | 12 ++--
>  tools/perf/ui/browsers/annotate.c                  |  8 +++
>  tools/perf/util/annotate.c                         | 51 ++++++++++++---
>  tools/perf/util/annotate.h                         | 11 +++-
>  tools/perf/util/config.c                           | 16 ++---
>  tools/perf/util/config.h                           |  1 -
>  tools/perf/util/env.c                              | 18 ++++++
>  tools/perf/util/env.h                              |  2 +
>  tools/perf/util/evsel.c                            |  2 +-
>  tools/perf/util/machine.c                          | 18 +++++-
>  tools/perf/util/machine.h                          |  2 +
>  tools/perf/util/parse-events.c                     | 73 +++++++++++++---------
>  tools/perf/util/probe-file.c                       |  3 +-
>  tools/perf/util/sort.c                             |  4 +-
>  tools/perf/util/sort.h                             |  4 +-
>  tools/perf/util/trace-event-info.c                 | 11 ++--
>  tools/perf/util/trace-event.c                      |  8 ++-
>  tools/perf/util/util.c                             | 34 +++++++++-
>  tools/perf/util/util.h                             |  4 +-
>  28 files changed, 279 insertions(+), 120 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/18] 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 5aafae8d097e2161ee5c6a12ad532100f8885d2b:

  Merge tag 'perf-core-for-mingo-4.18-20180516' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2018-05-16 17:56:43 +0200)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.18-20180519

for you to fetch changes up to 19422a9f2a3be7f3a046285ffae4cbb571aa853a:

  perf tools: Fix kernel_start for PTI on x86 (2018-05-19 06:42:51 -0300)

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

- Record min/max LBR cycles (>= skylake) and add 'perf annotate' TUI
  hotkey to show it (c) (Jin Yao)

- Fix machine->kernel_start for PTI on x86 (Adrian Hunter)

- Make machine->env->arch always available, e.g. in 'perf top', not
  just when reading that info from perf.data files (Adrian Hunter)

- Reduce the number of files read at 'perf' start, leaving information such as
  cacheline size, tracefs mount point determination, max_stack, etc, to be
  lazily read as tools needs then (Arnaldo Carvalho de Melo)

- Fixup BPF include and examples install messages (Arnaldo Carvalho de Melo)

- Fixup callchain addresses and symbol offsets in 'perf script', to help
  correlating with objdump output (Sandipan Das)

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

----------------------------------------------------------------
Adrian Hunter (2):
      perf machine: Add machine__is() to identify machine arch
      perf tools: Fix kernel_start for PTI on x86

Arnaldo Carvalho de Melo (12):
      perf config: Call perf_config__init() lazily
      tools lib api: The tracing_mnt variable doesn't need to be global
      tools lib api: Unexport 'tracing_path' variable
      tools lib api fs tracing_path: Introduce get/put_events_file() helpers
      perf tools: Reuse the path to the tracepoint /events/ directory
      perf parse-events: Use get/put_events_file()
      tools lib api fs tracing_path: Introduce opendir() method
      tools lib api fs tracing_path: Make tracing_events_path private
      tools include compiler-gcc: Add __pure attribute helper
      perf tools: Read the cache line size lazily
      perf tools: No need to unconditionally read the max_stack sysctls
      perf bpf: Fixup include and examples install messages

Jin Yao (2):
      perf annotate: Record the min/max cycles
      perf annotate: Create hotkey 'c' to show min/max cycles

Sandipan Das (2):
      perf script: Show virtual addresses instead of offsets
      perf script: Show symbol offsets by default

 tools/include/linux/compiler-gcc.h                 |  3 +
 tools/lib/api/fs/tracing_path.c                    | 40 +++++++++---
 tools/lib/api/fs/tracing_path.h                    |  9 ++-
 tools/perf/Makefile.perf                           |  2 +
 tools/perf/builtin-script.c                        | 26 ++++----
 tools/perf/builtin-top.c                           |  2 +-
 tools/perf/builtin-trace.c                         |  2 +-
 tools/perf/perf.c                                  | 24 +------
 tools/perf/tests/parse-events.c                    |  9 +--
 .../tests/shell/record+probe_libc_inet_pton.sh     | 12 ++--
 tools/perf/ui/browsers/annotate.c                  |  8 +++
 tools/perf/util/annotate.c                         | 51 ++++++++++++---
 tools/perf/util/annotate.h                         | 11 +++-
 tools/perf/util/config.c                           | 16 ++---
 tools/perf/util/config.h                           |  1 -
 tools/perf/util/env.c                              | 18 ++++++
 tools/perf/util/env.h                              |  2 +
 tools/perf/util/evsel.c                            |  2 +-
 tools/perf/util/machine.c                          | 18 +++++-
 tools/perf/util/machine.h                          |  2 +
 tools/perf/util/parse-events.c                     | 73 +++++++++++++---------
 tools/perf/util/probe-file.c                       |  3 +-
 tools/perf/util/sort.c                             |  4 +-
 tools/perf/util/sort.h                             |  4 +-
 tools/perf/util/trace-event-info.c                 | 11 ++--
 tools/perf/util/trace-event.c                      |  8 ++-
 tools/perf/util/util.c                             | 34 +++++++++-
 tools/perf/util/util.h                             |  4 +-
 28 files changed, 279 insertions(+), 120 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, and building with LIBCLANGLLVM=1
(built-in clang) with gcc and clang when clang and its devel libraries
are installed.

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

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

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

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

  # dm
   1 alpine:3.4                    : Ok   gcc (Alpine 5.3.0) 5.3.0
   2 alpine:3.5                    : Ok   gcc (Alpine 6.2.1) 6.2.1 20160822
   3 alpine:3.6                    : Ok   gcc (Alpine 6.3.0) 6.3.0
   4 alpine: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 4.8.5-28)
   7 amazonlinux:2                 : Ok   gcc (GCC) 7.3.1 20180303 (Red Hat 7.3.1-5)
   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 7.3.0-19) 7.3.0
  17 debian:experimental-x-arm64   : Ok   aarch64-linux-gnu-gcc (Debian 7.3.0-19) 7.3.0
  18 debian:experimental-x-mips    : Ok   mips-linux-gnu-gcc (Debian 7.3.0-19) 7.3.0
  19 debian:experimental-x-mips64  : Ok   mips64-linux-gnuabi64-gcc (Debian 7.3.0-18) 7.3.0
  20 debian:experimental-x-mipsel  : Ok   mipsel-linux-gnu-gcc (Debian 7.3.0-19) 7.3.0
  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:28                     : Ok   gcc (GCC) 8.1.1 20180502 (Red Hat 8.1.1-1)
  31 fedora:rawhide                : Ok   gcc (GCC) 8.0.1 20180324 (Red Hat 8.0.1-0.20)
  32 gentoo-stage3-amd64:latest    : Ok   gcc (Gentoo 6.4.0-r1 p1.3) 6.4.0
  33 mageia:5                      : Ok   gcc (GCC) 4.9.2
  34 mageia:6                      : Ok   gcc (Mageia 5.5.0-1.mga6) 5.5.0
  35 opensuse:42.1                 : Ok   gcc (SUSE Linux) 4.8.5
  36 opensuse:42.2                 : Ok   gcc (SUSE Linux) 4.8.5
  37 opensuse:42.3                 : Ok   gcc (SUSE Linux) 4.8.5
  38 opensuse:tumbleweed           : Ok   gcc (SUSE Linux) 7.3.1 20180323 [gcc-7-branch revision 258812]
  39 oraclelinux:6                 : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18.0.7)
  40 oraclelinux:7                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-28.0.1)
  41 ubuntu:12.04.5                : Ok   gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
  42 ubuntu:14.04.4                : Ok   gcc (Ubuntu 4.8.4-2ubuntu1~14.04.3) 4.8.4
  43 ubuntu:14.04.4-x-linaro-arm64 : Ok   aarch64-linux-gnu-gcc (Linaro GCC 5.5-2017.10) 5.5.0
  44 ubuntu:16.04                  : Ok   gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  45 ubuntu:16.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  46 ubuntu:16.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  47 ubuntu:16.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  48 ubuntu:16.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  49 ubuntu:16.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  50 ubuntu:16.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 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 7.2.0-8ubuntu3.2) 7.2.0
  54 ubuntu:18.04                  : Ok   gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
  #

  # uname -a
  Linux seventh 4.17.0-rc5-00069-g3acf4e395260 #2 SMP Fri May 18 12:13:59 -03 2018 x86_64 x86_64 x86_64 GNU/Linux
  # perf --version
  perf version 4.17.rc5.g19422a9
  # 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                                 : Ok
  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_debug_O: make DEBUG=1
           make_no_backtrace_O: make NO_BACKTRACE=1
        make_with_babeltrace_O: make LIBBABELTRACE=1
            make_no_libaudit_O: make NO_LIBAUDIT=1
             make_no_libnuma_O: make NO_LIBNUMA=1
         make_with_clangllvm_O: make LIBCLANGLLVM=1
                 make_static_O: make LDFLAGS=-static
             make_no_libperl_O: make NO_LIBPERL=1
             make_util_map_o_O: make util/map.o
              make_no_libelf_O: make NO_LIBELF=1
               make_no_slang_O: make NO_SLANG=1
   make_install_prefix_slash_O: make install prefix=/tmp/krava/
  make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
                   make_help_O: make help
           make_no_libbionic_O: make NO_LIBBIONIC=1
           make_no_libunwind_O: make NO_LIBUNWIND=1
                make_no_newt_O: make NO_NEWT=1
            make_no_demangle_O: make NO_DEMANGLE=1
                  make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
             make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
                 make_perf_o_O: make perf.o
                make_install_O: make install
       make_util_pmu_bison_o_O: make util/pmu-bison.o
                   make_tags_O: make tags
         make_install_prefix_O: make install prefix=/tmp/krava
                make_minimal_O: make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1
              make_clean_all_O: make clean all
                make_no_gtk2_O: make NO_GTK2=1
            make_no_auxtrace_O: make NO_AUXTRACE=1
           make_no_libpython_O: make NO_LIBPYTHON=1
              make_no_libbpf_O: make NO_LIBBPF=1
            make_install_bin_O: make install-bin
                    make_doc_O: make doc
                   make_pure_O: make
  OK
  make: Leaving directory '/home/acme/git/perf/tools/perf'
  $

Re: [GIT PULL 00/18] 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 b00233b5306512a09e339d69ef5e390a77f2d302:
> 
>   perf/x86: Export some PMU attributes in caps/ directory (2017-08-25 11:04:20 +0200)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.14-20170829
> 
> for you to fetch changes up to b2f7605076d6cdd68162c42c34caadafbbe4c69f:
> 
>   perf symbols: Fix plt entry calculation for ARM and AARCH64 (2017-08-29 11:41:27 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> - Fix remote HITM detection for Skylake in 'perf c2c' (Jiri Olsa)
> 
> - Fixes for the handling of PERF_RECORD_READ records (Jiri Olsa)
> 
> - Fix kprobes blackist symbol lookup in 'perf probe' (Li Bin)
> 
> - The PLT header and entry sizes are not the same in !x86, fix it for ARM and
>   AARCH64 (Li Bin)
> 
> - Beautify pkey_{alloc,free,mprotect} arguments in 'perf trace' (Arnaldo Carvalho de Melo)
> 
> - Fix CC, AR, LD external definition, allow flex and bison to be
>   externally defined and other related Makefile fixes (David Carrillo-Cisneros)
> 
> - Sync cpu features kernel ABI headers with tooling headers (Arnaldo Carvalho de Melo)
> 
> - Fix path to PMU formats in 'perf stat' documentation (Jack Henschel)
> 
> - Fix static build with newer toolchains (Jiri Olsa)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (2):
>       tools headers: Sync cpu features kernel ABI headers with tooling headers
>       perf trace beauty: Beautify pkey_{alloc,free,mprotect} arguments
> 
> David Carrillo-Cisneros (5):
>       tools build tests: Don't hardcode gcc name
>       perf tools: Allow external definition of flex and bison binary names
>       tools lib: Allow external definition of CC, AR and LD
>       perf tools: Robustify detection of clang binary
>       perf tools: Pass full path of FEATURES_DUMP
> 
> Jack Henschel (1):
>       perf stat: Fix path to PMU formats in documentation
> 
> Jiri Olsa (8):
>       perf tools: Fix static build with newer toolchains
>       perf c2c: Fix remote HITM detection for Skylake
>       perf record: Set read_format for inherit_stat
>       perf report: Add dump_read function
>       perf values: Fix thread index bug
>       perf values: Fix allocation check
>       perf values: Zero value buffers
>       perf report: Group stat values on global event id
> 
> Li Bin (2):
>       perf probe: Fix kprobe blacklist checking condition
>       perf symbols: Fix plt entry calculation for ARM and AARCH64
> 
>  tools/arch/x86/include/asm/cpufeatures.h           |  5 +--
>  tools/arch/x86/include/asm/disabled-features.h     |  4 +-
>  tools/build/tests/ex/Makefile                      |  2 +-
>  tools/lib/api/Makefile                             |  8 ++--
>  tools/lib/subcmd/Makefile                          |  2 +-
>  tools/perf/Documentation/perf-stat.txt             |  4 +-
>  tools/perf/Makefile.config                         |  4 +-
>  tools/perf/Makefile.perf                           | 26 ++++++++---
>  tools/perf/builtin-report.c                        |  6 +--
>  tools/perf/builtin-trace.c                         |  8 ++++
>  tools/perf/trace/beauty/Build                      |  1 +
>  tools/perf/trace/beauty/beauty.h                   |  3 ++
>  tools/perf/trace/beauty/pkey_alloc.c               | 50 ++++++++++++++++++++++
>  .../perf/trace/beauty/pkey_alloc_access_rights.sh  | 10 +++++
>  tools/perf/util/evsel.c                            |  7 ++-
>  tools/perf/util/intel-pt-decoder/Build             |  2 +-
>  tools/perf/util/mem-events.c                       | 11 ++++-
>  tools/perf/util/probe-event.c                      |  2 +-
>  tools/perf/util/session.c                          | 25 +++++++++++
>  tools/perf/util/symbol-elf.c                       | 27 +++++++++---
>  tools/perf/util/values.c                           | 17 +++++---
>  tools/scripts/Makefile.include                     |  4 +-
>  22 files changed, 185 insertions(+), 43 deletions(-)
>  create mode 100644 tools/perf/trace/beauty/pkey_alloc.c
>  create mode 100755 tools/perf/trace/beauty/pkey_alloc_access_rights.sh

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/18] 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 b00233b5306512a09e339d69ef5e390a77f2d302:

  perf/x86: Export some PMU attributes in caps/ directory (2017-08-25 11:04:20 +0200)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.14-20170829

for you to fetch changes up to b2f7605076d6cdd68162c42c34caadafbbe4c69f:

  perf symbols: Fix plt entry calculation for ARM and AARCH64 (2017-08-29 11:41:27 -0300)

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

- Fix remote HITM detection for Skylake in 'perf c2c' (Jiri Olsa)

- Fixes for the handling of PERF_RECORD_READ records (Jiri Olsa)

- Fix kprobes blackist symbol lookup in 'perf probe' (Li Bin)

- The PLT header and entry sizes are not the same in !x86, fix it for ARM and
  AARCH64 (Li Bin)

- Beautify pkey_{alloc,free,mprotect} arguments in 'perf trace' (Arnaldo Carvalho de Melo)

- Fix CC, AR, LD external definition, allow flex and bison to be
  externally defined and other related Makefile fixes (David Carrillo-Cisneros)

- Sync cpu features kernel ABI headers with tooling headers (Arnaldo Carvalho de Melo)

- Fix path to PMU formats in 'perf stat' documentation (Jack Henschel)

- Fix static build with newer toolchains (Jiri Olsa)

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

----------------------------------------------------------------
Arnaldo Carvalho de Melo (2):
      tools headers: Sync cpu features kernel ABI headers with tooling headers
      perf trace beauty: Beautify pkey_{alloc,free,mprotect} arguments

David Carrillo-Cisneros (5):
      tools build tests: Don't hardcode gcc name
      perf tools: Allow external definition of flex and bison binary names
      tools lib: Allow external definition of CC, AR and LD
      perf tools: Robustify detection of clang binary
      perf tools: Pass full path of FEATURES_DUMP

Jack Henschel (1):
      perf stat: Fix path to PMU formats in documentation

Jiri Olsa (8):
      perf tools: Fix static build with newer toolchains
      perf c2c: Fix remote HITM detection for Skylake
      perf record: Set read_format for inherit_stat
      perf report: Add dump_read function
      perf values: Fix thread index bug
      perf values: Fix allocation check
      perf values: Zero value buffers
      perf report: Group stat values on global event id

Li Bin (2):
      perf probe: Fix kprobe blacklist checking condition
      perf symbols: Fix plt entry calculation for ARM and AARCH64

 tools/arch/x86/include/asm/cpufeatures.h           |  5 +--
 tools/arch/x86/include/asm/disabled-features.h     |  4 +-
 tools/build/tests/ex/Makefile                      |  2 +-
 tools/lib/api/Makefile                             |  8 ++--
 tools/lib/subcmd/Makefile                          |  2 +-
 tools/perf/Documentation/perf-stat.txt             |  4 +-
 tools/perf/Makefile.config                         |  4 +-
 tools/perf/Makefile.perf                           | 26 ++++++++---
 tools/perf/builtin-report.c                        |  6 +--
 tools/perf/builtin-trace.c                         |  8 ++++
 tools/perf/trace/beauty/Build                      |  1 +
 tools/perf/trace/beauty/beauty.h                   |  3 ++
 tools/perf/trace/beauty/pkey_alloc.c               | 50 ++++++++++++++++++++++
 .../perf/trace/beauty/pkey_alloc_access_rights.sh  | 10 +++++
 tools/perf/util/evsel.c                            |  7 ++-
 tools/perf/util/intel-pt-decoder/Build             |  2 +-
 tools/perf/util/mem-events.c                       | 11 ++++-
 tools/perf/util/probe-event.c                      |  2 +-
 tools/perf/util/session.c                          | 25 +++++++++++
 tools/perf/util/symbol-elf.c                       | 27 +++++++++---
 tools/perf/util/values.c                           | 17 +++++---
 tools/scripts/Makefile.include                     |  4 +-
 22 files changed, 185 insertions(+), 43 deletions(-)
 create mode 100644 tools/perf/trace/beauty/pkey_alloc.c
 create mode 100755 tools/perf/trace/beauty/pkey_alloc_access_rights.sh

Test results:

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

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

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

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

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

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

  # dm
   1 alpine:3.4: Ok
   2 alpine:3.5: Ok
   3 alpine:3.6: Ok
   4 alpine:edge: Ok
   5 android-ndk:r12b-arm: Ok
   6 archlinux:latest: Ok
   7 centos:5: Ok
   8 centos:6: Ok
   9 centos:7: Ok
  10 debian:7: Ok
  11 debian:8: Ok
  12 debian:9: Ok
  13 debian:experimental: Ok
  14 debian:experimental-x-arm64: Ok
  15 debian:experimental-x-mips: Ok
  16 debian:experimental-x-mips64: Ok
  17 debian:experimental-x-mipsel: Ok
  18 fedora:20: Ok
  19 fedora:21: Ok
  20 fedora:22: Ok
  21 fedora:23: Ok
  22 fedora:24: Ok
  23 fedora:24-x-ARC-uClibc: Ok
  24 fedora:25: Ok
  25 fedora:26: Ok
  26 fedora:rawhide: Ok
  27 mageia:5: Ok
  28 opensuse:13.2: Ok
  29 opensuse:42.1: Ok
  30 opensuse:42.2: Ok
  31 opensuse:42.3: Ok
  32 opensuse:tumbleweed: Ok
  33 oraclelinux:6: Ok
  34 oraclelinux:7: Ok
  35 ubuntu:12.04.5: Ok
  36 ubuntu:14.04.4: Ok
  37 ubuntu:14.04.4-x-linaro-arm64: Ok
  38 ubuntu:15.10: Ok
  39 ubuntu:16.04: Ok
  40 ubuntu:16.04-x-arm: Ok
  41 ubuntu:16.04-x-arm64: Ok
  42 ubuntu:16.04-x-powerpc: Ok
  43 ubuntu:16.04-x-powerpc64: Ok
  44 ubuntu:16.04-x-powerpc64el: Ok
  45 ubuntu:16.04-x-s390: Ok
  46 ubuntu:16.10: Ok
  47 ubuntu:17.04: Ok
  48 ubuntu:17.10: Ok
  #

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

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

Re: [GIT PULL 00/18] perf/core improvements and fixes

[Ingo Molnar]

* Christian Borntraeger <borntraeger@de.ibm.com> wrote:

> The merge looks wrong:
> 
> dbdebdc53 (Ravi Bangoria            2016-11-23 21:33:46 +0530  133)     },
> 3c1a42795 (Christian Borntraeger    2017-04-06 09:51:51 +0200  134)     {
> 3c1a42795 (Christian Borntraeger    2017-04-06 09:51:51 +0200  135)             .name = "s390",
> d9f8dfa9b (Christian Borntraeger    2017-04-06 09:51:52 +0200  136)             .init = s390__annotate_init,
> e77852b32 (Christian Borntraeger    2017-04-06 09:51:51 +0200  137)             .objdump =  {
> e77852b32 (Christian Borntraeger    2017-04-06 09:51:51 +0200  138)                     .comment_char = '#',
> e77852b32 (Christian Borntraeger    2017-04-06 09:51:51 +0200  139)             },
> e77852b32 (Christian Borntraeger    2017-04-06 09:51:51 +0200  140)     },
> 43d5b075c (Ingo Molnar              2017-04-12 07:29:13 +0200  141)     {
> 43d5b075c (Ingo Molnar              2017-04-12 07:29:13 +0200  142)             .name = "s390",
> 3c1a42795 (Christian Borntraeger    2017-04-06 09:51:51 +0200  143)             .objdump =  {
> 3c1a42795 (Christian Borntraeger    2017-04-06 09:51:51 +0200  144)                     .comment_char = '#',
> 3c1a42795 (Christian Borntraeger    2017-04-06 09:51:51 +0200  145)             },
> 3c1a42795 (Christian Borntraeger    2017-04-06 09:51:51 +0200  146)     },
> 786c1b518 (Arnaldo Carvalho de Melo 2016-11-16 15:39:50 -0300  147) };
> 
> You can delete line 141-146

Ok, I've deleted those lines and amended the merge commit - thanks!

	Ingo

Re: [GIT PULL 00/18] perf/core improvements and fixes

[Christian Borntraeger]

On 04/12/2017 07:30 AM, Ingo Molnar wrote:
> 
> * 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 9df9078ef2086652647248ee6e82ca8f661cb3f5:
>>
>>   perf/amd/uncore: Fix pr_fmt() prefix (2017-04-11 08:44:59 +0200)
>>
>> are available in the git repository at:
>>
>>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.12-20170411
>>
>> for you to fetch changes up to 986a5bc028a84d487c354a529730b48682d1fb41:
>>
>>   perf annotate: Use stripped line instead of raw disassemble line (2017-04-11 16:22:23 -0300)
>>
>> ----------------------------------------------------------------
>> perf/core improvements and fixes:
>>
>> User visible:
>>
>> - Support s390 jump instructions in perf annotate (Christian Borntraeger)
>>
>> - When failing to setup multiple events (e.g. '-e irq_vectors:*'), state
>>   which one caused the failure (Yao Jin)
>>
>> - Various fixes for pipe mode, where the output of 'perf record' is
>>   written to stdout instead of to a perf.data file, fixing workloads
>>   such as: (David Carrillo-Cisneros)
>>
>>     $ perf record -o - noploop | perf inject -b > perf.data
>>
>>     $ perf record -o - noploop | perf annotate
>>
>> Infrastructure:
>>
>> - Simplify ltrim() implementation (Arnaldo Carvalho de Melo)
>>
>> - Use ltrim() and rtrim() in places where ad-hoc equivalents were being
>>   used (Taeung Song)
>>
>> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
>>
>> ----------------------------------------------------------------
>> Arnaldo Carvalho de Melo (3):
>>       perf callchains: Switch from strtok() to strtok_r() when parsing options
>>       perf script: Use strtok_r() when parsing output field list
>>       perf string: Simplify ltrim() implementation
>>
>> Christian Borntraeger (2):
>>       perf annotate s390: Fix perf annotate error -95 (4.10 regression)
>>       perf annotate s390: Implement jump types for perf annotate
>>
>> David Carrillo-Cisneros (6):
>>       perf inject: Don't proceed if perf_session__process_event() fails
>>       perf inject: Copy events when reordering events in pipe mode
>>       perf tools: Describe pipe mode in perf.data-file-fomat.txt
>>       perf annotate: Process attr and build_id records
>>       perf session: Don't rely on evlist in pipe mode
>>       perf tools: Do not print missing features in pipe-mode
>>
>> Jin Yao (1):
>>       perf evsel: Return exact sub event which failed with EPERM for wildcards
>>
>> Taeung Song (6):
>>       perf stat: Refactor the code to strip csv output with ltrim()
>>       perf ui browser: Refactor the code to parse color configs with ltrim()
>>       perf pmu: Refactor wordwrap() with ltrim()
>>       perf tools: Refactor the code to strip command name with {l,r}trim()
>>       perf annotate: Refactor the code to parse disassemble lines with {l,r}trim()
>>       perf annotate: Use stripped line instead of raw disassemble line
>>
>>  tools/perf/Documentation/perf.data-file-format.txt | 19 +++++++-
>>  tools/perf/arch/s390/annotate/instructions.c       | 30 ++++++++++++
>>  tools/perf/builtin-annotate.c                      |  2 +
>>  tools/perf/builtin-inject.c                        |  2 +
>>  tools/perf/builtin-script.c                        |  4 +-
>>  tools/perf/builtin-stat.c                          | 10 +---
>>  tools/perf/ui/browser.c                            |  2 +-
>>  tools/perf/util/annotate.c                         | 54 +++++++---------------
>>  tools/perf/util/callchain.c                        |  4 +-
>>  tools/perf/util/event.c                            | 11 +----
>>  tools/perf/util/evsel.c                            |  8 +++-
>>  tools/perf/util/header.c                           |  3 ++
>>  tools/perf/util/ordered-events.c                   |  3 +-
>>  tools/perf/util/pmu.c                              |  3 +-
>>  tools/perf/util/session.c                          | 17 +++++--
>>  tools/perf/util/string.c                           |  6 +--
>>  16 files changed, 105 insertions(+), 73 deletions(-)
>>  create mode 100644 tools/perf/arch/s390/annotate/instructions.c
> 
> Pulled, thanks a lot Arnaldo!
> 
> Note, there was a conflict in tools/perf/util/annotate.c due to the s390 fix in 
> perf/urgent. I've fixed it up, but please double check the conflict resolution I 
> made in 43d5b075c400.
> 
> Thanks,
> 
> 	Ingo
> 

The merge looks wrong:

dbdebdc53 (Ravi Bangoria            2016-11-23 21:33:46 +0530  133)     },
3c1a42795 (Christian Borntraeger    2017-04-06 09:51:51 +0200  134)     {
3c1a42795 (Christian Borntraeger    2017-04-06 09:51:51 +0200  135)             .name = "s390",
d9f8dfa9b (Christian Borntraeger    2017-04-06 09:51:52 +0200  136)             .init = s390__annotate_init,
e77852b32 (Christian Borntraeger    2017-04-06 09:51:51 +0200  137)             .objdump =  {
e77852b32 (Christian Borntraeger    2017-04-06 09:51:51 +0200  138)                     .comment_char = '#',
e77852b32 (Christian Borntraeger    2017-04-06 09:51:51 +0200  139)             },
e77852b32 (Christian Borntraeger    2017-04-06 09:51:51 +0200  140)     },
43d5b075c (Ingo Molnar              2017-04-12 07:29:13 +0200  141)     {
43d5b075c (Ingo Molnar              2017-04-12 07:29:13 +0200  142)             .name = "s390",
3c1a42795 (Christian Borntraeger    2017-04-06 09:51:51 +0200  143)             .objdump =  {
3c1a42795 (Christian Borntraeger    2017-04-06 09:51:51 +0200  144)                     .comment_char = '#',
3c1a42795 (Christian Borntraeger    2017-04-06 09:51:51 +0200  145)             },
3c1a42795 (Christian Borntraeger    2017-04-06 09:51:51 +0200  146)     },
786c1b518 (Arnaldo Carvalho de Melo 2016-11-16 15:39:50 -0300  147) };

You can delete line 141-146

Re: [GIT PULL 00/18] 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 9df9078ef2086652647248ee6e82ca8f661cb3f5:
> 
>   perf/amd/uncore: Fix pr_fmt() prefix (2017-04-11 08:44:59 +0200)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.12-20170411
> 
> for you to fetch changes up to 986a5bc028a84d487c354a529730b48682d1fb41:
> 
>   perf annotate: Use stripped line instead of raw disassemble line (2017-04-11 16:22:23 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible:
> 
> - Support s390 jump instructions in perf annotate (Christian Borntraeger)
> 
> - When failing to setup multiple events (e.g. '-e irq_vectors:*'), state
>   which one caused the failure (Yao Jin)
> 
> - Various fixes for pipe mode, where the output of 'perf record' is
>   written to stdout instead of to a perf.data file, fixing workloads
>   such as: (David Carrillo-Cisneros)
> 
>     $ perf record -o - noploop | perf inject -b > perf.data
> 
>     $ perf record -o - noploop | perf annotate
> 
> Infrastructure:
> 
> - Simplify ltrim() implementation (Arnaldo Carvalho de Melo)
> 
> - Use ltrim() and rtrim() in places where ad-hoc equivalents were being
>   used (Taeung Song)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (3):
>       perf callchains: Switch from strtok() to strtok_r() when parsing options
>       perf script: Use strtok_r() when parsing output field list
>       perf string: Simplify ltrim() implementation
> 
> Christian Borntraeger (2):
>       perf annotate s390: Fix perf annotate error -95 (4.10 regression)
>       perf annotate s390: Implement jump types for perf annotate
> 
> David Carrillo-Cisneros (6):
>       perf inject: Don't proceed if perf_session__process_event() fails
>       perf inject: Copy events when reordering events in pipe mode
>       perf tools: Describe pipe mode in perf.data-file-fomat.txt
>       perf annotate: Process attr and build_id records
>       perf session: Don't rely on evlist in pipe mode
>       perf tools: Do not print missing features in pipe-mode
> 
> Jin Yao (1):
>       perf evsel: Return exact sub event which failed with EPERM for wildcards
> 
> Taeung Song (6):
>       perf stat: Refactor the code to strip csv output with ltrim()
>       perf ui browser: Refactor the code to parse color configs with ltrim()
>       perf pmu: Refactor wordwrap() with ltrim()
>       perf tools: Refactor the code to strip command name with {l,r}trim()
>       perf annotate: Refactor the code to parse disassemble lines with {l,r}trim()
>       perf annotate: Use stripped line instead of raw disassemble line
> 
>  tools/perf/Documentation/perf.data-file-format.txt | 19 +++++++-
>  tools/perf/arch/s390/annotate/instructions.c       | 30 ++++++++++++
>  tools/perf/builtin-annotate.c                      |  2 +
>  tools/perf/builtin-inject.c                        |  2 +
>  tools/perf/builtin-script.c                        |  4 +-
>  tools/perf/builtin-stat.c                          | 10 +---
>  tools/perf/ui/browser.c                            |  2 +-
>  tools/perf/util/annotate.c                         | 54 +++++++---------------
>  tools/perf/util/callchain.c                        |  4 +-
>  tools/perf/util/event.c                            | 11 +----
>  tools/perf/util/evsel.c                            |  8 +++-
>  tools/perf/util/header.c                           |  3 ++
>  tools/perf/util/ordered-events.c                   |  3 +-
>  tools/perf/util/pmu.c                              |  3 +-
>  tools/perf/util/session.c                          | 17 +++++--
>  tools/perf/util/string.c                           |  6 +--
>  16 files changed, 105 insertions(+), 73 deletions(-)
>  create mode 100644 tools/perf/arch/s390/annotate/instructions.c

Pulled, thanks a lot Arnaldo!

Note, there was a conflict in tools/perf/util/annotate.c due to the s390 fix in 
perf/urgent. I've fixed it up, but please double check the conflict resolution I 
made in 43d5b075c400.

Thanks,

	Ingo

[GIT PULL 00/18] 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 9df9078ef2086652647248ee6e82ca8f661cb3f5:

  perf/amd/uncore: Fix pr_fmt() prefix (2017-04-11 08:44:59 +0200)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.12-20170411

for you to fetch changes up to 986a5bc028a84d487c354a529730b48682d1fb41:

  perf annotate: Use stripped line instead of raw disassemble line (2017-04-11 16:22:23 -0300)

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

User visible:

- Support s390 jump instructions in perf annotate (Christian Borntraeger)

- When failing to setup multiple events (e.g. '-e irq_vectors:*'), state
  which one caused the failure (Yao Jin)

- Various fixes for pipe mode, where the output of 'perf record' is
  written to stdout instead of to a perf.data file, fixing workloads
  such as: (David Carrillo-Cisneros)

    $ perf record -o - noploop | perf inject -b > perf.data

    $ perf record -o - noploop | perf annotate

Infrastructure:

- Simplify ltrim() implementation (Arnaldo Carvalho de Melo)

- Use ltrim() and rtrim() in places where ad-hoc equivalents were being
  used (Taeung Song)

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

----------------------------------------------------------------
Arnaldo Carvalho de Melo (3):
      perf callchains: Switch from strtok() to strtok_r() when parsing options
      perf script: Use strtok_r() when parsing output field list
      perf string: Simplify ltrim() implementation

Christian Borntraeger (2):
      perf annotate s390: Fix perf annotate error -95 (4.10 regression)
      perf annotate s390: Implement jump types for perf annotate

David Carrillo-Cisneros (6):
      perf inject: Don't proceed if perf_session__process_event() fails
      perf inject: Copy events when reordering events in pipe mode
      perf tools: Describe pipe mode in perf.data-file-fomat.txt
      perf annotate: Process attr and build_id records
      perf session: Don't rely on evlist in pipe mode
      perf tools: Do not print missing features in pipe-mode

Jin Yao (1):
      perf evsel: Return exact sub event which failed with EPERM for wildcards

Taeung Song (6):
      perf stat: Refactor the code to strip csv output with ltrim()
      perf ui browser: Refactor the code to parse color configs with ltrim()
      perf pmu: Refactor wordwrap() with ltrim()
      perf tools: Refactor the code to strip command name with {l,r}trim()
      perf annotate: Refactor the code to parse disassemble lines with {l,r}trim()
      perf annotate: Use stripped line instead of raw disassemble line

 tools/perf/Documentation/perf.data-file-format.txt | 19 +++++++-
 tools/perf/arch/s390/annotate/instructions.c       | 30 ++++++++++++
 tools/perf/builtin-annotate.c                      |  2 +
 tools/perf/builtin-inject.c                        |  2 +
 tools/perf/builtin-script.c                        |  4 +-
 tools/perf/builtin-stat.c                          | 10 +---
 tools/perf/ui/browser.c                            |  2 +-
 tools/perf/util/annotate.c                         | 54 +++++++---------------
 tools/perf/util/callchain.c                        |  4 +-
 tools/perf/util/event.c                            | 11 +----
 tools/perf/util/evsel.c                            |  8 +++-
 tools/perf/util/header.c                           |  3 ++
 tools/perf/util/ordered-events.c                   |  3 +-
 tools/perf/util/pmu.c                              |  3 +-
 tools/perf/util/session.c                          | 17 +++++--
 tools/perf/util/string.c                           |  6 +--
 16 files changed, 105 insertions(+), 73 deletions(-)
 create mode 100644 tools/perf/arch/s390/annotate/instructions.c

Test results:

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

For this specific pull request the samples/bpf/ was disabled, as 'make headers_install'
is failing with the following error, in this case in fedora:rawhide:

    INSTALL usr/include/uapi/ (0 file)
  /git/linux/scripts/Makefile.headersinst:62: *** Missing generated UAPI file ./arch/x86/include/generated/uapi/asm/unistd_32.h.  Stop.
  make[1]: *** [/git/linux/Makefile:1151: headers_install] Error 2
  make[1]: Leaving directory '/tmp/build/linux'
  make: *** [Makefile:152: sub-make] Error 2
  make: Leaving directory '/git/linux'

I'll investigate later, perf and objtool builds just fine, with clang and gcc.

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

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

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

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

  # uname -a
  Linux jouet 4.11.0-rc6+ #7 SMP Tue Apr 11 11:53:14 -03 2017 x86_64 x86_64 x86_64 GNU/Linux
  # perf test
   1: vmlinux symtab matches kallsyms            : Ok
   2: Detect openat syscall event                : Ok
   3: Detect openat syscall event on all cpus    : Ok
   4: Read samples using the mmap interface      : Ok
   5: Parse event definition strings             : Ok
   6: Simple expression parser                   : Ok
   7: PERF_RECORD_* events & perf_sample fields  : Ok
   8: Parse perf pmu format                      : Ok
   9: DSO data read                              : Ok
  10: DSO data cache                             : Ok
  11: DSO data reopen                            : Ok
  12: Roundtrip evsel->name                      : Ok
  13: Parse sched tracepoints fields             : Ok
  14: syscalls:sys_enter_openat event fields     : Ok
  15: Setup struct perf_event_attr               : Ok
  16: Match and link multiple hists              : Ok
  17: 'import perf' in python                    : Ok
  18: Breakpoint overflow signal handler         : Ok
  19: Breakpoint overflow sampling               : Ok
  20: Number of exit events of a simple workload : Ok
  21: Software clock events period values        : Ok
  22: Object code reading                        : Ok
  23: Sample parsing                             : Ok
  24: Use a dummy software event to keep tracking: Ok
  25: Parse with no sample_id_all bit set        : Ok
  26: Filter hist entries                        : Ok
  27: Lookup mmap thread                         : Ok
  28: Share thread mg                            : Ok
  29: Sort output of hist entries                : Ok
  30: Cumulate child hist entries                : Ok
  31: Track with sched_switch                    : Ok
  32: Filter fds with revents mask in a fdarray  : Ok
  33: Add fd to a fdarray, making it autogrow    : Ok
  34: kmod_path__parse                           : Ok
  35: Thread map                                 : Ok
  36: LLVM search and compile                    :
  36.1: Basic BPF llvm compile                    : Ok
  36.2: kbuild searching                          : Ok
  36.3: Compile source for BPF prologue generation: Ok
  36.4: Compile source for BPF relocation         : Ok
  37: Session topology                           : Ok
  38: BPF filter                                 :
  38.1: Basic BPF filtering                      : Ok
  38.2: BPF pinning                              : Ok
  38.3: BPF prologue generation                  : Ok
  38.4: BPF relocation checker                   : Ok
  39: Synthesize thread map                      : Ok
  40: Remove thread map                          : Ok
  41: Synthesize cpu map                         : Ok
  42: Synthesize stat config                     : Ok
  43: Synthesize stat                            : Ok
  44: Synthesize stat round                      : Ok
  45: Synthesize attr update                     : Ok
  46: Event times                                : Ok
  47: Read backward ring buffer                  : Ok
  48: Print cpu map                              : Ok
  49: Probe SDT events                           : Ok
  50: is_printable_array                         : Ok
  51: Print bitmap                               : Ok
  52: perf hooks                                 : Ok
  53: builtin clang support                      : Skip (not compiled in)
  54: unit_number__scnprintf                     : Ok
  55: x86 rdpmc                                  : Ok
  56: Convert perf time to TSC                   : Ok
  57: DWARF unwind                               : Ok
  58: x86 instruction decoder - new instructions : Ok
  59: Intel cqm nmi context read                 : Skip
  #

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

Re: [GIT PULL 00/18] 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,
> 
> - Arnaldo
> 
> Test results at the end of this message, as usual.
> 
> The following changes since commit 0c8967c9df230d2c4dde6649f410b62e01806c22:
> 
>   Merge tag 'perf-core-for-mingo-4.11-20170215' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2017-02-16 20:53:13 +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-4.11-20170220
> 
> for you to fetch changes up to 68ba32352d51474d163d58e084b62a12bb610b21:
> 
>   perf record: Honor --quiet option properly (2017-02-20 11:50:36 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> New features:
> 
> - Make -a/--all-cpus be the default target in 'perf record' and 'perf stat',
>   just like it is with 'perf trace' (Jiri Olsa)
> 
> - Introduce -q/--quiet to the 'annotate', 'diff' and 'report', fix up
>   its behaviour in 'record'. This makes the output more compact by
>   elliminating headers, leaving just the histogram lines (Namhyung Kim)
> 
> Fixes:
> 
> - Handle offline/absent CPUs (Jan Stancek)
> 
> Infrastructure:
> 
> - Filter out -specs=/a/b/c from CC options when building the python
>   support, allowing that feature to be built with clang (Arnaldo Carvalho de Melo)
> 
> - Fix DEBUG=1 build with clang (Arnaldo Carvalho de Melo)
> 
> Trivial:
> 
> - Fix spelling of 'preempt' in a libtraceevent function name (Steven Rostedt)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (3):
>       tools perf scripting python: clang doesn't have -spec, remove it
>       perf python: Filter out -specs=/a/b/c from the python binding cc options
>       perf session: Fix DEBUG=1 build with clang
> 
> Jan Stancek (3):
>       perf cpumap: Add cpu__max_present_cpu()
>       perf header: Make build_cpu_topology skip offline/absent CPUs
>       perf tools: Replace _SC_NPROCESSORS_CONF with max_present_cpu in cpu_topology_map
> 
> Jiri Olsa (5):
>       perf build: Add special fixdep cleaning rule
>       perf tools: Move new_term arguments into struct parse_events_term template
>       perf tools: Fail on using multiple bits long terms without value
>       perf stat: Add -a as default target
>       perf record: Add -a as default target
> 
> Namhyung Kim (6):
>       perf utils: Add perf_quiet_option()
>       perf utils: Check verbose flag properly
>       perf report: Add -q/--quiet option
>       perf diff: Add -q/--quiet option
>       perf annotate: Add -q/--quiet option
>       perf record: Honor --quiet option properly
> 
> Steven Rostedt (VMware) (1):
>       tools lib traceevent: It's preempt not prempt
> 
>  tools/build/Makefile                               |  4 +-
>  tools/build/Makefile.include                       |  3 +
>  tools/lib/traceevent/event-parse.c                 |  4 +-
>  tools/lib/traceevent/event-parse.h                 |  2 +-
>  tools/perf/Documentation/perf-annotate.txt         |  4 ++
>  tools/perf/Documentation/perf-diff.txt             |  4 ++
>  tools/perf/Documentation/perf-record.txt           |  2 +-
>  tools/perf/Documentation/perf-report.txt           |  4 ++
>  tools/perf/Documentation/perf-stat.txt             |  2 +-
>  tools/perf/Makefile.config                         |  7 +++
>  tools/perf/Makefile.perf                           |  4 +-
>  tools/perf/builtin-annotate.c                      |  4 ++
>  tools/perf/builtin-diff.c                          | 14 +++--
>  tools/perf/builtin-mem.c                           |  4 +-
>  tools/perf/builtin-record.c                        |  8 ++-
>  tools/perf/builtin-report.c                        | 21 +++++--
>  tools/perf/builtin-sched.c                         | 12 ++--
>  tools/perf/builtin-stat.c                          | 11 ++--
>  tools/perf/builtin-top.c                           |  2 +-
>  tools/perf/builtin-trace.c                         |  6 +-
>  tools/perf/pmu-events/json.c                       |  2 +-
>  tools/perf/tests/attr.c                            |  2 +-
>  tools/perf/tests/builtin-test.c                    |  2 +-
>  tools/perf/tests/code-reading.c                    |  2 +-
>  tools/perf/tests/fdarray.c                         |  2 +-
>  tools/perf/tests/llvm.c                            |  2 +-
>  tools/perf/tests/parse-events.c                    |  2 +-
>  tools/perf/tests/perf-record.c                     |  4 +-
>  tools/perf/tests/python-use.c                      |  2 +-
>  tools/perf/tests/thread-map.c                      |  6 +-
>  tools/perf/tests/topology.c                        |  4 +-
>  tools/perf/tests/vmlinux-kallsyms.c                |  2 +-
>  tools/perf/ui/browsers/map.c                       |  6 +-
>  tools/perf/ui/hist.c                               |  2 +-
>  tools/perf/util/annotate.c                         |  2 +-
>  tools/perf/util/cpumap.c                           | 22 +++++++
>  tools/perf/util/cpumap.h                           |  1 +
>  tools/perf/util/debug.c                            | 17 ++++++
>  tools/perf/util/debug.h                            |  1 +
>  tools/perf/util/dso.c                              |  2 +-
>  tools/perf/util/env.c                              |  2 +-
>  tools/perf/util/header.c                           | 33 ++++++----
>  tools/perf/util/hist.c                             |  6 +-
>  tools/perf/util/parse-events.c                     | 71 +++++++++++++---------
>  tools/perf/util/parse-events.h                     |  2 +
>  tools/perf/util/parse-events.y                     | 14 ++---
>  tools/perf/util/pmu.c                              | 21 +++++--
>  tools/perf/util/probe-event.c                      |  2 +-
>  .../util/scripting-engines/trace-event-python.c    |  4 +-
>  tools/perf/util/session.c                          |  2 +-
>  tools/perf/util/setup.py                           |  9 ++-
>  tools/perf/util/sort.c                             |  8 +--
>  tools/perf/util/stat.c                             |  2 +-
>  tools/perf/util/symbol-elf.c                       |  2 +-
>  54 files changed, 256 insertions(+), 129 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/18] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

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

Hi Ingo,

	Please consider pulling,

- Arnaldo

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

The following changes since commit 0c8967c9df230d2c4dde6649f410b62e01806c22:

  Merge tag 'perf-core-for-mingo-4.11-20170215' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2017-02-16 20:53:13 +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-4.11-20170220

for you to fetch changes up to 68ba32352d51474d163d58e084b62a12bb610b21:

  perf record: Honor --quiet option properly (2017-02-20 11:50:36 -0300)

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

New features:

- Make -a/--all-cpus be the default target in 'perf record' and 'perf stat',
  just like it is with 'perf trace' (Jiri Olsa)

- Introduce -q/--quiet to the 'annotate', 'diff' and 'report', fix up
  its behaviour in 'record'. This makes the output more compact by
  elliminating headers, leaving just the histogram lines (Namhyung Kim)

Fixes:

- Handle offline/absent CPUs (Jan Stancek)

Infrastructure:

- Filter out -specs=/a/b/c from CC options when building the python
  support, allowing that feature to be built with clang (Arnaldo Carvalho de Melo)

- Fix DEBUG=1 build with clang (Arnaldo Carvalho de Melo)

Trivial:

- Fix spelling of 'preempt' in a libtraceevent function name (Steven Rostedt)

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

----------------------------------------------------------------
Arnaldo Carvalho de Melo (3):
      tools perf scripting python: clang doesn't have -spec, remove it
      perf python: Filter out -specs=/a/b/c from the python binding cc options
      perf session: Fix DEBUG=1 build with clang

Jan Stancek (3):
      perf cpumap: Add cpu__max_present_cpu()
      perf header: Make build_cpu_topology skip offline/absent CPUs
      perf tools: Replace _SC_NPROCESSORS_CONF with max_present_cpu in cpu_topology_map

Jiri Olsa (5):
      perf build: Add special fixdep cleaning rule
      perf tools: Move new_term arguments into struct parse_events_term template
      perf tools: Fail on using multiple bits long terms without value
      perf stat: Add -a as default target
      perf record: Add -a as default target

Namhyung Kim (6):
      perf utils: Add perf_quiet_option()
      perf utils: Check verbose flag properly
      perf report: Add -q/--quiet option
      perf diff: Add -q/--quiet option
      perf annotate: Add -q/--quiet option
      perf record: Honor --quiet option properly

Steven Rostedt (VMware) (1):
      tools lib traceevent: It's preempt not prempt

 tools/build/Makefile                               |  4 +-
 tools/build/Makefile.include                       |  3 +
 tools/lib/traceevent/event-parse.c                 |  4 +-
 tools/lib/traceevent/event-parse.h                 |  2 +-
 tools/perf/Documentation/perf-annotate.txt         |  4 ++
 tools/perf/Documentation/perf-diff.txt             |  4 ++
 tools/perf/Documentation/perf-record.txt           |  2 +-
 tools/perf/Documentation/perf-report.txt           |  4 ++
 tools/perf/Documentation/perf-stat.txt             |  2 +-
 tools/perf/Makefile.config                         |  7 +++
 tools/perf/Makefile.perf                           |  4 +-
 tools/perf/builtin-annotate.c                      |  4 ++
 tools/perf/builtin-diff.c                          | 14 +++--
 tools/perf/builtin-mem.c                           |  4 +-
 tools/perf/builtin-record.c                        |  8 ++-
 tools/perf/builtin-report.c                        | 21 +++++--
 tools/perf/builtin-sched.c                         | 12 ++--
 tools/perf/builtin-stat.c                          | 11 ++--
 tools/perf/builtin-top.c                           |  2 +-
 tools/perf/builtin-trace.c                         |  6 +-
 tools/perf/pmu-events/json.c                       |  2 +-
 tools/perf/tests/attr.c                            |  2 +-
 tools/perf/tests/builtin-test.c                    |  2 +-
 tools/perf/tests/code-reading.c                    |  2 +-
 tools/perf/tests/fdarray.c                         |  2 +-
 tools/perf/tests/llvm.c                            |  2 +-
 tools/perf/tests/parse-events.c                    |  2 +-
 tools/perf/tests/perf-record.c                     |  4 +-
 tools/perf/tests/python-use.c                      |  2 +-
 tools/perf/tests/thread-map.c                      |  6 +-
 tools/perf/tests/topology.c                        |  4 +-
 tools/perf/tests/vmlinux-kallsyms.c                |  2 +-
 tools/perf/ui/browsers/map.c                       |  6 +-
 tools/perf/ui/hist.c                               |  2 +-
 tools/perf/util/annotate.c                         |  2 +-
 tools/perf/util/cpumap.c                           | 22 +++++++
 tools/perf/util/cpumap.h                           |  1 +
 tools/perf/util/debug.c                            | 17 ++++++
 tools/perf/util/debug.h                            |  1 +
 tools/perf/util/dso.c                              |  2 +-
 tools/perf/util/env.c                              |  2 +-
 tools/perf/util/header.c                           | 33 ++++++----
 tools/perf/util/hist.c                             |  6 +-
 tools/perf/util/parse-events.c                     | 71 +++++++++++++---------
 tools/perf/util/parse-events.h                     |  2 +
 tools/perf/util/parse-events.y                     | 14 ++---
 tools/perf/util/pmu.c                              | 21 +++++--
 tools/perf/util/probe-event.c                      |  2 +-
 .../util/scripting-engines/trace-event-python.c    |  4 +-
 tools/perf/util/session.c                          |  2 +-
 tools/perf/util/setup.py                           |  9 ++-
 tools/perf/util/sort.c                             |  8 +--
 tools/perf/util/stat.c                             |  2 +-
 tools/perf/util/symbol-elf.c                       |  2 +-
 54 files changed, 256 insertions(+), 129 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 4.10.0-rc8 #2 SMP Wed Feb 15 15:26:36 BRT 2017 x86_64 x86_64 x86_64 GNU/Linux
  # perf test
   1: vmlinux symtab matches kallsyms            : Ok
   2: Detect openat syscall event                : Ok
   3: Detect openat syscall event on all cpus    : Ok
   4: Read samples using the mmap interface      : Ok
   5: Parse event definition strings             : Ok
   6: PERF_RECORD_* events & perf_sample fields  : Ok
   7: Parse perf pmu format                      : Ok
   8: DSO data read                              : Ok
   9: DSO data cache                             : Ok
  10: DSO data reopen                            : Ok
  11: Roundtrip evsel->name                      : Ok
  12: Parse sched tracepoints fields             : Ok
  13: syscalls:sys_enter_openat event fields     : Ok
  14: Setup struct perf_event_attr               : Ok
  15: Match and link multiple hists              : Ok
  16: 'import perf' in python                    : Ok
  17: Breakpoint overflow signal handler         : Ok
  18: Breakpoint overflow sampling               : Ok
  19: Number of exit events of a simple workload : Ok
  20: Software clock events period values        : Ok
  21: Object code reading                        : Ok
  22: Sample parsing                             : Ok
  23: Use a dummy software event to keep tracking: Ok
  24: Parse with no sample_id_all bit set        : Ok
  25: Filter hist entries                        : Ok
  26: Lookup mmap thread                         : Ok
  27: Share thread mg                            : Ok
  28: Sort output of hist entries                : Ok
  29: Cumulate child hist entries                : Ok
  30: Track with sched_switch                    : Ok
  31: Filter fds with revents mask in a fdarray  : Ok
  32: Add fd to a fdarray, making it autogrow    : Ok
  33: kmod_path__parse                           : Ok
  34: Thread map                                 : Ok
  35: LLVM search and compile                    :
  35.1: Basic BPF llvm compile                    : Ok
  35.2: kbuild searching                          : Ok
  35.3: Compile source for BPF prologue generation: Ok
  35.4: Compile source for BPF relocation         : Ok
  36: Session topology                           : Ok
  37: BPF filter                                 :
  37.1: Basic BPF filtering                      : Ok
  37.2: BPF pinning                              : Ok
  37.3: BPF prologue generation                  : Ok
  37.4: BPF relocation checker                   : Ok
  38: Synthesize thread map                      : Ok
  39: Remove thread map                          : Ok
  40: Synthesize cpu map                         : Ok
  41: Synthesize stat config                     : Ok
  42: Synthesize stat                            : Ok
  43: Synthesize stat round                      : Ok
  44: Synthesize attr update                     : Ok
  45: Event times                                : Ok
  46: Read backward ring buffer                  : Ok
  47: Print cpu map                              : Ok
  48: Probe SDT events                           : Ok
  49: is_printable_array                         : Ok
  50: Print bitmap                               : Ok
  51: perf hooks                                 : Ok
  52: builtin clang support                      : Skip (not compiled in)
  53: unit_number__scnprintf                     : Ok
  54: x86 rdpmc                                  : Ok
  55: Convert perf time to TSC                   : Ok
  56: DWARF unwind                               : Ok
  57: x86 instruction decoder - new instructions : Ok
  58: Intel cqm nmi context read                 : Skip
  #

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

Re: [GIT PULL 00/18] 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,
> 
> - Arnaldo
> 
> Test results at the end.
> 
> The following changes since commit 6a6b12e2125591e24891e6860410795ea53aed11:
> 
>   Merge tag 'perf-core-for-mingo-20161114' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-11-15 09:45:04 +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-20161123
> 
> for you to fetch changes up to a407b0678bc1c39d70af5fdbe6421c164b69a8c0:
> 
>   perf sched timehist: Add -V/--cpu-visual option (2016-11-23 10:44:09 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> New tool:
> 
> - 'perf sched timehist' provides an analysis of scheduling events.
> 
>   Example usage:
>       perf sched record -- sleep 1
>       perf sched timehist
> 
>   By default it shows the individual schedule events, including the wait
>   time (time between sched-out and next sched-in events for the task), the
>   task scheduling delay (time between wakeup and actually running) and run
>   time for the task:
> 
>         time    cpu  task name         wait time  sch delay  run time
>                      [tid/pid]            (msec)     (msec)    (msec)
>     -------- ------  ----------------  ---------  ---------  --------
>     1.874569 [0011]  gcc[31949]            0.014      0.000     1.148
>     1.874591 [0010]  gcc[31951]            0.000      0.000     0.024
>     1.874603 [0010]  migration/10[59]      3.350      0.004     0.011
>     1.874604 [0011]  <idle>                1.148      0.000     0.035
>     1.874723 [0005]  <idle>                0.016      0.000     1.383
>     1.874746 [0005]  gcc[31949]            0.153      0.078     0.022
>   ...
> 
>   Times are in msec.usec. (David Ahern, Namhyung Kim)
> 
> Improvements:
> 
> - Make 'perf c2c report' support -f/--force, to allow skipping the
>   ownership check for root users, for instance, just like the other
>   tools (Jiri Olsa)
> 
> - Allow sorting cachelines by total number of HITMs, in addition to
>   local and remote numbers (Jiri Olsa)
> 
> Fixes:
> 
> - Make sure errors aren't suppressed by the TUI reset at the end of
>   a 'perf c2c report' session (Jiri Olsa)
> 
> Infrastructure:
> 
> - Initial work on having the annotate code better support multiple
>   architectures, including the ability to cross-annotate, i.e. to
>   annotate perf.data files collected on an ARM system on a x86_64
>   workstation (Arnaldo Carvalho de Melo, Ravi Bangoria, Kim Phillips)
> 
> - Use USECS_PER_SEC instead of hard coded number in libtraceevent (Steven Rostedt)
> 
> - Add retrieval of preempt count and latency flags in libtraceevent (Steven Rostedt)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (3):
>       perf annotate: Start supporting cross arch annotation
>       perf annotate: Allow arches to specify functions to skip
>       perf annotate: Add per arch instructions annotate handlers
> 
> David Ahern (5):
>       perf sched timehist: Introduce timehist command
>       perf sched timehist: Add summary options
>       perf sched timehist: Add -w/--wakeups option
>       perf sched timehist: Add call graph options
>       perf sched timehist: Add -V/--cpu-visual option
> 
> Jiri Olsa (6):
>       perf tools: Show event fd in debug output
>       perf c2c report: Setup browser after opening perf.data
>       perf c2c report: Add -f/--force option
>       perf c2c report: Add struct c2c_stats::tot_hitm field
>       perf c2c report: Display total HITMs on default
>       perf c2c: Support cascading options
> 
> Namhyung Kim (2):
>       perf symbols: Print symbol offsets conditionally
>       perf evsel: Support printing callchains with arrows
> 
> Steven Rostedt (2):
>       tools lib traceevent: Use USECS_PER_SEC instead of hardcoded number
>       tools lib traceevent: Add retrieval of preempt count and latency flags
> 
>  tools/lib/traceevent/event-parse.c          |  41 +-
>  tools/lib/traceevent/event-parse.h          |   5 +-
>  tools/perf/Documentation/perf-c2c.txt       |   8 +
>  tools/perf/Documentation/perf-sched.txt     |  66 +-
>  tools/perf/arch/arm/annotate/instructions.c |  90 +++
>  tools/perf/arch/x86/annotate/instructions.c |  78 +++
>  tools/perf/builtin-c2c.c                    |  80 ++-
>  tools/perf/builtin-sched.c                  | 914 +++++++++++++++++++++++++++-
>  tools/perf/builtin-top.c                    |   2 +-
>  tools/perf/ui/browsers/annotate.c           |   2 +-
>  tools/perf/ui/gtk/annotate.c                |   2 +-
>  tools/perf/util/annotate.c                  | 251 ++++----
>  tools/perf/util/annotate.h                  |   6 +-
>  tools/perf/util/evsel.c                     |   6 +-
>  tools/perf/util/evsel.h                     |   1 +
>  tools/perf/util/evsel_fprintf.c             |  12 +-
>  tools/perf/util/mem-events.c                |  12 +-
>  tools/perf/util/mem-events.h                |   1 +
>  tools/perf/util/symbol.h                    |   3 +-
>  tools/perf/util/symbol_fprintf.c            |  11 +-
>  20 files changed, 1406 insertions(+), 185 deletions(-)
>  create mode 100644 tools/perf/arch/arm/annotate/instructions.c
>  create mode 100644 tools/perf/arch/x86/annotate/instructions.c
> 
>   # uname -a
>   Linux jouet 4.8.6-201.fc24.x86_64 #1 SMP Thu Nov 3 14:38:57 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
>   # perf test
>    1: vmlinux symtab matches kallsyms                          : Ok
>    2: detect openat syscall event                              : Ok
>    3: detect openat syscall event on all cpus                  : Ok
>    4: read samples using the mmap interface                    : Ok
>    5: parse events tests                                       : Ok
>    6: Validate PERF_RECORD_* events & perf_sample fields       : Ok
>    7: Test perf pmu format parsing                             : Ok
>    8: Test dso data read                                       : Ok
>    9: Test dso data cache                                      : Ok
>   10: Test dso data reopen                                     : Ok
>   11: roundtrip evsel->name check                              : Ok
>   12: Check parsing of sched tracepoints fields                : Ok
>   13: Generate and check syscalls:sys_enter_openat event fields: Ok
>   14: struct perf_event_attr setup                             : Ok
>   15: Test matching and linking multiple hists                 : Ok
>   16: Try 'import perf' in python, checking link problems      : Ok
>   17: Test breakpoint overflow signal handler                  : Ok
>   18: Test breakpoint overflow sampling                        : Ok
>   19: Test number of exit event of a simple workload           : Ok
>   20: Test software clock events have valid period values      : Ok
>   21: Test object code reading                                 : Ok
>   22: Test sample parsing                                      : Ok
>   23: Test using a dummy software event to keep tracking       : Ok
>   24: Test parsing with no sample_id_all bit set               : Ok
>   25: Test filtering hist entries                              : Ok
>   26: Test mmap thread lookup                                  : Ok
>   27: Test thread mg sharing                                   : Ok
>   28: Test output sorting of hist entries                      : Ok
>   29: Test cumulation of child hist entries                    : Ok
>   30: Test tracking 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: Test kmod_path__parse function                           : Ok
>   34: Test thread map                                          : Ok
>   35: Test LLVM searching and compiling                        :
>   35.1: Basic BPF llvm compiling test                          : Ok
>   35.2: Test kbuild searching                                  : Ok
>   35.3: Compile source for BPF prologue generation test        : Ok
>   35.4: Compile source for BPF relocation test                 : Ok
>   36: Test topology in session                                 : Ok
>   37: Test BPF filter                                          :
>   37.1: Test basic BPF filtering                               : Ok
>   37.2: Test BPF prologue generation                           : Ok
>   37.3: Test BPF relocation checker                            : Ok
>   38: Test thread map synthesize                               : Ok
>   39: Test cpu map synthesize                                  : Ok
>   40: Test stat config synthesize                              : Ok
>   41: Test stat synthesize                                     : Ok
>   42: Test stat round synthesize                               : Ok
>   43: Test attr update synthesize                              : Ok
>   44: Test events times                                        : Ok
>   45: Test backward reading from ring buffer                   : Ok
>   46: Test cpu map print                                       : Ok
>   47: Test SDT event probing                                   : Ok
>   48: Test is_printable_array function                         : Ok
>   49: Test bitmap print                                        : Ok
>   50: x86 rdpmc test                                           : Ok
>   51: Test converting perf time to TSC                         : Ok
>   52: Test dwarf unwind                                        : Ok
>   53: Test x86 instruction decoder - new instructions          : Ok
>   54: Test intel cqm nmi context read                          : Skip
>   # 
> 
>   # dm
>    1 alpine:3.4: Ok
>    2 android-ndk:r12b-arm: Ok
>    3 archlinux:latest: Ok
>    4 centos:5: Ok
>    5 centos:6: Ok
>    6 centos:7: Ok
>    7 debian:7: Ok
>    8 debian:8: Ok
>    9 debian:experimental: Ok
>   10 fedora:20: Ok
>   11 fedora:21: Ok
>   12 fedora:22: Ok
>   13 fedora:23: Ok
>   14 fedora:24: Ok
>   15 fedora:24-x-ARC-uClibc: Ok
>   16 fedora:rawhide: Ok
>   17 mageia:5: Ok
>   18 opensuse:13.2: Ok
>   19 opensuse:42.1: Ok
>   20 opensuse:tumbleweed: Ok
>   21 ubuntu:12.04.5: Ok
>   22 ubuntu:14.04: Ok
>   23 ubuntu:14.04.4: Ok
>   24 ubuntu:15.10: Ok
>   25 ubuntu:16.04: Ok
>   26 ubuntu:16.04-x-arm: Ok
>   27 ubuntu:16.04-x-arm64: Ok
>   28 ubuntu:16.04-x-powerpc: Ok
>   29 ubuntu:16.04-x-powerpc64: Ok
>   30 ubuntu:16.04-x-powerpc64el: Ok
>   31 ubuntu:16.04-x-s390: Ok
>   32 ubuntu:16.10: Ok
>   #
> 
>   $ make -C tools/perf build-test
>   make: Entering directory '/home/acme/git/linux/tools/perf'
>   - tarpkg: ./tests/perf-targz-src-pkg .
>              make_no_libperl_O: make NO_LIBPERL=1
>             make_no_demangle_O: make NO_DEMANGLE=1
>              make_no_libnuma_O: make NO_LIBNUMA=1
>             make_install_bin_O: make install-bin
>          make_install_prefix_O: make install prefix=/tmp/krava
>              make_util_map_o_O: make util/map.o
>   make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
>               make_no_libbpf_O: make NO_LIBBPF=1
>                     make_doc_O: make doc
>        make_util_pmu_bison_o_O: make util/pmu-bison.o
>         make_with_babeltrace_O: make LIBBABELTRACE=1
>                   make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
>              make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
>                   make_debug_O: make DEBUG=1
>                  make_perf_o_O: make perf.o
>                make_no_slang_O: make NO_SLANG=1
>                 make_no_newt_O: make NO_NEWT=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_install_O: make install
>             make_no_auxtrace_O: make NO_AUXTRACE=1
>            make_no_backtrace_O: make NO_BACKTRACE=1
>    make_install_prefix_slash_O: make install prefix=/tmp/krava/
>               make_clean_all_O: make clean all
>            make_no_libpython_O: make NO_LIBPYTHON=1
>             make_no_libaudit_O: make NO_LIBAUDIT=1
>            make_no_libbionic_O: make NO_LIBBIONIC=1
>                    make_help_O: make help
>               make_no_libelf_O: make NO_LIBELF=1
>                    make_tags_O: make tags
>            make_no_libunwind_O: make NO_LIBUNWIND=1
>                 make_no_gtk2_O: make NO_GTK2=1
>                    make_pure_O: make
>                  make_static_O: make LDFLAGS=-static
>   OK
>   make: Leaving directory '/home/acme/git/linux/tools/perf'

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/18] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

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

Hi Ingo,

	Please consider pulling,

- Arnaldo

Test results at the end.

The following changes since commit 6a6b12e2125591e24891e6860410795ea53aed11:

  Merge tag 'perf-core-for-mingo-20161114' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-11-15 09:45:04 +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-20161123

for you to fetch changes up to a407b0678bc1c39d70af5fdbe6421c164b69a8c0:

  perf sched timehist: Add -V/--cpu-visual option (2016-11-23 10:44:09 -0300)

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

New tool:

- 'perf sched timehist' provides an analysis of scheduling events.

  Example usage:
      perf sched record -- sleep 1
      perf sched timehist

  By default it shows the individual schedule events, including the wait
  time (time between sched-out and next sched-in events for the task), the
  task scheduling delay (time between wakeup and actually running) and run
  time for the task:

        time    cpu  task name         wait time  sch delay  run time
                     [tid/pid]            (msec)     (msec)    (msec)
    -------- ------  ----------------  ---------  ---------  --------
    1.874569 [0011]  gcc[31949]            0.014      0.000     1.148
    1.874591 [0010]  gcc[31951]            0.000      0.000     0.024
    1.874603 [0010]  migration/10[59]      3.350      0.004     0.011
    1.874604 [0011]  <idle>                1.148      0.000     0.035
    1.874723 [0005]  <idle>                0.016      0.000     1.383
    1.874746 [0005]  gcc[31949]            0.153      0.078     0.022
  ...

  Times are in msec.usec. (David Ahern, Namhyung Kim)

Improvements:

- Make 'perf c2c report' support -f/--force, to allow skipping the
  ownership check for root users, for instance, just like the other
  tools (Jiri Olsa)

- Allow sorting cachelines by total number of HITMs, in addition to
  local and remote numbers (Jiri Olsa)

Fixes:

- Make sure errors aren't suppressed by the TUI reset at the end of
  a 'perf c2c report' session (Jiri Olsa)

Infrastructure:

- Initial work on having the annotate code better support multiple
  architectures, including the ability to cross-annotate, i.e. to
  annotate perf.data files collected on an ARM system on a x86_64
  workstation (Arnaldo Carvalho de Melo, Ravi Bangoria, Kim Phillips)

- Use USECS_PER_SEC instead of hard coded number in libtraceevent (Steven Rostedt)

- Add retrieval of preempt count and latency flags in libtraceevent (Steven Rostedt)

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

----------------------------------------------------------------
Arnaldo Carvalho de Melo (3):
      perf annotate: Start supporting cross arch annotation
      perf annotate: Allow arches to specify functions to skip
      perf annotate: Add per arch instructions annotate handlers

David Ahern (5):
      perf sched timehist: Introduce timehist command
      perf sched timehist: Add summary options
      perf sched timehist: Add -w/--wakeups option
      perf sched timehist: Add call graph options
      perf sched timehist: Add -V/--cpu-visual option

Jiri Olsa (6):
      perf tools: Show event fd in debug output
      perf c2c report: Setup browser after opening perf.data
      perf c2c report: Add -f/--force option
      perf c2c report: Add struct c2c_stats::tot_hitm field
      perf c2c report: Display total HITMs on default
      perf c2c: Support cascading options

Namhyung Kim (2):
      perf symbols: Print symbol offsets conditionally
      perf evsel: Support printing callchains with arrows

Steven Rostedt (2):
      tools lib traceevent: Use USECS_PER_SEC instead of hardcoded number
      tools lib traceevent: Add retrieval of preempt count and latency flags

 tools/lib/traceevent/event-parse.c          |  41 +-
 tools/lib/traceevent/event-parse.h          |   5 +-
 tools/perf/Documentation/perf-c2c.txt       |   8 +
 tools/perf/Documentation/perf-sched.txt     |  66 +-
 tools/perf/arch/arm/annotate/instructions.c |  90 +++
 tools/perf/arch/x86/annotate/instructions.c |  78 +++
 tools/perf/builtin-c2c.c                    |  80 ++-
 tools/perf/builtin-sched.c                  | 914 +++++++++++++++++++++++++++-
 tools/perf/builtin-top.c                    |   2 +-
 tools/perf/ui/browsers/annotate.c           |   2 +-
 tools/perf/ui/gtk/annotate.c                |   2 +-
 tools/perf/util/annotate.c                  | 251 ++++----
 tools/perf/util/annotate.h                  |   6 +-
 tools/perf/util/evsel.c                     |   6 +-
 tools/perf/util/evsel.h                     |   1 +
 tools/perf/util/evsel_fprintf.c             |  12 +-
 tools/perf/util/mem-events.c                |  12 +-
 tools/perf/util/mem-events.h                |   1 +
 tools/perf/util/symbol.h                    |   3 +-
 tools/perf/util/symbol_fprintf.c            |  11 +-
 20 files changed, 1406 insertions(+), 185 deletions(-)
 create mode 100644 tools/perf/arch/arm/annotate/instructions.c
 create mode 100644 tools/perf/arch/x86/annotate/instructions.c

  # uname -a
  Linux jouet 4.8.6-201.fc24.x86_64 #1 SMP Thu Nov 3 14:38:57 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
  # perf test
   1: vmlinux symtab matches kallsyms                          : Ok
   2: detect openat syscall event                              : Ok
   3: detect openat syscall event on all cpus                  : Ok
   4: read samples using the mmap interface                    : Ok
   5: parse events tests                                       : Ok
   6: Validate PERF_RECORD_* events & perf_sample fields       : Ok
   7: Test perf pmu format parsing                             : Ok
   8: Test dso data read                                       : Ok
   9: Test dso data cache                                      : Ok
  10: Test dso data reopen                                     : Ok
  11: roundtrip evsel->name check                              : Ok
  12: Check parsing of sched tracepoints fields                : Ok
  13: Generate and check syscalls:sys_enter_openat event fields: Ok
  14: struct perf_event_attr setup                             : Ok
  15: Test matching and linking multiple hists                 : Ok
  16: Try 'import perf' in python, checking link problems      : Ok
  17: Test breakpoint overflow signal handler                  : Ok
  18: Test breakpoint overflow sampling                        : Ok
  19: Test number of exit event of a simple workload           : Ok
  20: Test software clock events have valid period values      : Ok
  21: Test object code reading                                 : Ok
  22: Test sample parsing                                      : Ok
  23: Test using a dummy software event to keep tracking       : Ok
  24: Test parsing with no sample_id_all bit set               : Ok
  25: Test filtering hist entries                              : Ok
  26: Test mmap thread lookup                                  : Ok
  27: Test thread mg sharing                                   : Ok
  28: Test output sorting of hist entries                      : Ok
  29: Test cumulation of child hist entries                    : Ok
  30: Test tracking 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: Test kmod_path__parse function                           : Ok
  34: Test thread map                                          : Ok
  35: Test LLVM searching and compiling                        :
  35.1: Basic BPF llvm compiling test                          : Ok
  35.2: Test kbuild searching                                  : Ok
  35.3: Compile source for BPF prologue generation test        : Ok
  35.4: Compile source for BPF relocation test                 : Ok
  36: Test topology in session                                 : Ok
  37: Test BPF filter                                          :
  37.1: Test basic BPF filtering                               : Ok
  37.2: Test BPF prologue generation                           : Ok
  37.3: Test BPF relocation checker                            : Ok
  38: Test thread map synthesize                               : Ok
  39: Test cpu map synthesize                                  : Ok
  40: Test stat config synthesize                              : Ok
  41: Test stat synthesize                                     : Ok
  42: Test stat round synthesize                               : Ok
  43: Test attr update synthesize                              : Ok
  44: Test events times                                        : Ok
  45: Test backward reading from ring buffer                   : Ok
  46: Test cpu map print                                       : Ok
  47: Test SDT event probing                                   : Ok
  48: Test is_printable_array function                         : Ok
  49: Test bitmap print                                        : Ok
  50: x86 rdpmc test                                           : Ok
  51: Test converting perf time to TSC                         : Ok
  52: Test dwarf unwind                                        : Ok
  53: Test x86 instruction decoder - new instructions          : Ok
  54: Test intel cqm nmi context read                          : Skip
  # 

  # dm
   1 alpine:3.4: Ok
   2 android-ndk:r12b-arm: Ok
   3 archlinux:latest: Ok
   4 centos:5: Ok
   5 centos:6: Ok
   6 centos:7: Ok
   7 debian:7: Ok
   8 debian:8: Ok
   9 debian:experimental: Ok
  10 fedora:20: Ok
  11 fedora:21: Ok
  12 fedora:22: Ok
  13 fedora:23: Ok
  14 fedora:24: Ok
  15 fedora:24-x-ARC-uClibc: Ok
  16 fedora:rawhide: Ok
  17 mageia:5: Ok
  18 opensuse:13.2: Ok
  19 opensuse:42.1: Ok
  20 opensuse:tumbleweed: Ok
  21 ubuntu:12.04.5: Ok
  22 ubuntu:14.04: Ok
  23 ubuntu:14.04.4: Ok
  24 ubuntu:15.10: Ok
  25 ubuntu:16.04: Ok
  26 ubuntu:16.04-x-arm: Ok
  27 ubuntu:16.04-x-arm64: Ok
  28 ubuntu:16.04-x-powerpc: Ok
  29 ubuntu:16.04-x-powerpc64: Ok
  30 ubuntu:16.04-x-powerpc64el: Ok
  31 ubuntu:16.04-x-s390: Ok
  32 ubuntu:16.10: Ok
  #

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

Re: [GIT PULL 00/18] perf/core improvements and fixes

[Ingo Molnar]

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

> Em Tue, Jun 28, 2016 at 09:02:57AM +0200, Ingo Molnar escreveu:
> > 
> > * Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
> > 
> > > Hi Ingo,
> > > 
> > > 	Please consider pulling,
> > > 
> > > - Arnaldo
> > > 
> > > The following changes since commit d4cf1949f9689314aef962eea95df84a8288d097:
> > > 
> > >   perf/x86/intel: Add {rd,wr}lbr_{to,from} wrappers (2016-06-27 11:34:21 +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-20160627
> > > 
> > > for you to fetch changes up to 6d9c675078e697309c1c06a1051f01de8151c476:
> > > 
> > >   perf data ctf: Generate fork and exit events to CTF output (2016-06-27 15:50:23 -0300)
> > > 
> > > ----------------------------------------------------------------
> > > perf/core improvements and fixes:
> > > 
> > > New features:
> > > 
> > > - Generate comm, fork and exit events when converting perf.data files to CTF (Wang Nan)
> > > 
> > > Documentation:
> > > 
> > > - Document perf.data on disk format (Andi Kleen)
> > > 
> > > Infrastructure:
> > > 
> > > - Add libbabeltrace to build-test (Wang Nan)
> > > 
> > > - 'perf record' prep work to support multiple evlists (Wang Nan)
> > > 
> > > - Remove unused hist_entry__annotate function (Ravi Bangoria)
> > > 
> > > - Add more toolchain triplets (Ravi Bangoria)
> > > 
> > > - Update message for slang devel packages on Ubuntu (Neeraj Badlani)
> > > 
> > > - Generalize handling of 'ret' instructions in the annotate TUI (Naveen N. Rao)
> > > 
> > > - Use proper dso name for is_regular_file, fixing device file handling (Jiri Olsa)
> > > 
> > > Build Fixes:
> > > 
> > > - Add missing config.h include, fixing the build with libabeltrace (Jiri Olsa)
> > > 
> > > Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> > > 
> > > ----------------------------------------------------------------
> > > Andi Kleen (1):
> > >       perf tools: Add documentation for perf.data on disk format
> > 
> > The doc build fails with:
> > 
> > asciidoc: FAILED: manpage document title is mandatory
> > Makefile:276: recipe for target 'perf-file-format.xml' failed
> > make[2]: *** [perf-file-format.xml] Error 1
> > make[2]: *** Waiting for unfinished jobs....
> 
> Ok, I've created a perf-core-for-mingo-20160628 with that patch removed
> while we investigate this, please consider pulling that one instead.

Pulled, thanks a lot Arnaldo!

	Ingo

Re: [GIT PULL 00/18] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Em Tue, Jun 28, 2016 at 11:01:55AM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Tue, Jun 28, 2016 at 09:02:57AM +0200, Ingo Molnar escreveu:
> > * Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
> > > Andi Kleen (1):
> > >       perf tools: Add documentation for perf.data on disk format

> > The doc build fails with:

> > asciidoc: FAILED: manpage document title is mandatory
> > Makefile:276: recipe for target 'perf-file-format.xml' failed
> > make[2]: *** [perf-file-format.xml] Error 1
> > make[2]: *** Waiting for unfinished jobs....
 
> Ok, I've created a perf-core-for-mingo-20160628 with that patch removed
> while we investigate this, please consider pulling that one instead.
 
> build-test should've caught this... Reproduced, trying to fix...

So, when doing the docs install it expects files starting with perf-*
will be fed to asciidoc to generate man pages, etc, so the quick fix
here is to rename perf-file-format.txt to perf.data-file-format.txt,
which I did, so this will go in the next pull request.

Volunteers accepted to turn this into asciidoc format so that we can do
a man perf-data-file-format or somesuch.

- Arnaldo

Re: [GIT PULL 00/18] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Em Tue, Jun 28, 2016 at 09:02:57AM +0200, Ingo Molnar escreveu:
> 
> * Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
> 
> > Hi Ingo,
> > 
> > 	Please consider pulling,
> > 
> > - Arnaldo
> > 
> > The following changes since commit d4cf1949f9689314aef962eea95df84a8288d097:
> > 
> >   perf/x86/intel: Add {rd,wr}lbr_{to,from} wrappers (2016-06-27 11:34:21 +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-20160627
> > 
> > for you to fetch changes up to 6d9c675078e697309c1c06a1051f01de8151c476:
> > 
> >   perf data ctf: Generate fork and exit events to CTF output (2016-06-27 15:50:23 -0300)
> > 
> > ----------------------------------------------------------------
> > perf/core improvements and fixes:
> > 
> > New features:
> > 
> > - Generate comm, fork and exit events when converting perf.data files to CTF (Wang Nan)
> > 
> > Documentation:
> > 
> > - Document perf.data on disk format (Andi Kleen)
> > 
> > Infrastructure:
> > 
> > - Add libbabeltrace to build-test (Wang Nan)
> > 
> > - 'perf record' prep work to support multiple evlists (Wang Nan)
> > 
> > - Remove unused hist_entry__annotate function (Ravi Bangoria)
> > 
> > - Add more toolchain triplets (Ravi Bangoria)
> > 
> > - Update message for slang devel packages on Ubuntu (Neeraj Badlani)
> > 
> > - Generalize handling of 'ret' instructions in the annotate TUI (Naveen N. Rao)
> > 
> > - Use proper dso name for is_regular_file, fixing device file handling (Jiri Olsa)
> > 
> > Build Fixes:
> > 
> > - Add missing config.h include, fixing the build with libabeltrace (Jiri Olsa)
> > 
> > Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> > 
> > ----------------------------------------------------------------
> > Andi Kleen (1):
> >       perf tools: Add documentation for perf.data on disk format
> 
> The doc build fails with:
> 
> asciidoc: FAILED: manpage document title is mandatory
> Makefile:276: recipe for target 'perf-file-format.xml' failed
> make[2]: *** [perf-file-format.xml] Error 1
> make[2]: *** Waiting for unfinished jobs....

Ok, I've created a perf-core-for-mingo-20160628 with that patch removed
while we investigate this, please consider pulling that one instead.

build-test should've caught this... Reproduced, trying to fix...

- Arnaldo

Re: [GIT PULL 00/18] perf/core improvements and fixes

[Jiri Olsa]

On Tue, Jun 28, 2016 at 09:02:57AM +0200, Ingo Molnar wrote:

SNIP

> > - Add missing config.h include, fixing the build with libabeltrace (Jiri Olsa)
> > 
> > Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> > 
> > ----------------------------------------------------------------
> > Andi Kleen (1):
> >       perf tools: Add documentation for perf.data on disk format
> 
> The doc build fails with:
> 
> asciidoc: FAILED: manpage document title is mandatory
> Makefile:276: recipe for target 'perf-file-format.xml' failed
> make[2]: *** [perf-file-format.xml] Error 1
> make[2]: *** Waiting for unfinished jobs....
> 

hum, my asciidoc does not complain

jirka

Re: [GIT PULL 00/18] 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 d4cf1949f9689314aef962eea95df84a8288d097:
> 
>   perf/x86/intel: Add {rd,wr}lbr_{to,from} wrappers (2016-06-27 11:34:21 +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-20160627
> 
> for you to fetch changes up to 6d9c675078e697309c1c06a1051f01de8151c476:
> 
>   perf data ctf: Generate fork and exit events to CTF output (2016-06-27 15:50:23 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> New features:
> 
> - Generate comm, fork and exit events when converting perf.data files to CTF (Wang Nan)
> 
> Documentation:
> 
> - Document perf.data on disk format (Andi Kleen)
> 
> Infrastructure:
> 
> - Add libbabeltrace to build-test (Wang Nan)
> 
> - 'perf record' prep work to support multiple evlists (Wang Nan)
> 
> - Remove unused hist_entry__annotate function (Ravi Bangoria)
> 
> - Add more toolchain triplets (Ravi Bangoria)
> 
> - Update message for slang devel packages on Ubuntu (Neeraj Badlani)
> 
> - Generalize handling of 'ret' instructions in the annotate TUI (Naveen N. Rao)
> 
> - Use proper dso name for is_regular_file, fixing device file handling (Jiri Olsa)
> 
> Build Fixes:
> 
> - Add missing config.h include, fixing the build with libabeltrace (Jiri Olsa)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Andi Kleen (1):
>       perf tools: Add documentation for perf.data on disk format

The doc build fails with:

asciidoc: FAILED: manpage document title is mandatory
Makefile:276: recipe for target 'perf-file-format.xml' failed
make[2]: *** [perf-file-format.xml] Error 1
make[2]: *** Waiting for unfinished jobs....

Thanks,

	Ingo

[GIT PULL 00/18] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit d4cf1949f9689314aef962eea95df84a8288d097:

  perf/x86/intel: Add {rd,wr}lbr_{to,from} wrappers (2016-06-27 11:34:21 +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-20160627

for you to fetch changes up to 6d9c675078e697309c1c06a1051f01de8151c476:

  perf data ctf: Generate fork and exit events to CTF output (2016-06-27 15:50:23 -0300)

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

New features:

- Generate comm, fork and exit events when converting perf.data files to CTF (Wang Nan)

Documentation:

- Document perf.data on disk format (Andi Kleen)

Infrastructure:

- Add libbabeltrace to build-test (Wang Nan)

- 'perf record' prep work to support multiple evlists (Wang Nan)

- Remove unused hist_entry__annotate function (Ravi Bangoria)

- Add more toolchain triplets (Ravi Bangoria)

- Update message for slang devel packages on Ubuntu (Neeraj Badlani)

- Generalize handling of 'ret' instructions in the annotate TUI (Naveen N. Rao)

- Use proper dso name for is_regular_file, fixing device file handling (Jiri Olsa)

Build Fixes:

- Add missing config.h include, fixing the build with libabeltrace (Jiri Olsa)

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

----------------------------------------------------------------
Andi Kleen (1):
      perf tools: Add documentation for perf.data on disk format

Jiri Olsa (2):
      perf data convert: Include config.h header
      perf symbols: Use proper dso name for is_regular_file

Naveen N. Rao (1):
      perf annotate: Generalize handling of 'ret' instructions

Neeraj Badlani (1):
      perf tools: Update makefile message for installing slang devel package

Ravi Bangoria (2):
      perf annotate: Remove unused hist_entry__annotate function
      perf tools: Add more toolchain triplets

Wang Nan (11):
      perf build: Add libbabeltrace to build-test
      perf record: Move mmap setup block to separate function
      perf record: Prepare reading from multiple evlists in record__mmap_read_all()
      perf record: Prepare picking perf_event_mmap_page from multiple evlists
      perf data ctf: Add value_set_string() helper
      perf data ctf: Pass convert options through opts structure
      perf data ctf: Add 'all' option
      perf data ctf: Prepare collect non-sample events
      perf data ctf: Generate comm event to CTF output
      perf data ctf: Add '--all' option for 'perf data convert'
      perf data ctf: Generate fork and exit events to CTF output

 tools/perf/Documentation/perf-data.txt        |   4 +
 tools/perf/Documentation/perf-file-format.txt | 442 ++++++++++++++++++++++++++
 tools/perf/arch/common.c                      |  17 +
 tools/perf/builtin-data.c                     |  11 +-
 tools/perf/builtin-record.c                   | 105 ++++--
 tools/perf/config/Makefile                    |   2 +-
 tools/perf/tests/make                         |   2 +
 tools/perf/ui/browsers/annotate.c             |  20 +-
 tools/perf/util/annotate.c                    |  15 +-
 tools/perf/util/annotate.h                    |   3 +-
 tools/perf/util/data-convert-bt.c             | 196 +++++++++++-
 tools/perf/util/data-convert-bt.h             |   4 +-
 tools/perf/util/data-convert.h                |   9 +
 tools/perf/util/symbol.c                      |   2 +-
 14 files changed, 773 insertions(+), 59 deletions(-)
 create mode 100644 tools/perf/Documentation/perf-file-format.txt
 create mode 100644 tools/perf/util/data-convert.h

Re: [GIT PULL 00/18] 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 a11c51acc52822754d66a11c15f6f6edd4d23c55:
> 
>   Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-07-21 07:58:06 +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 7c14898ba9386ee5c939bb418643ac6baff52840:
> 
>   perf script: Add option --show-switch-events (2015-07-23 22:51:14 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> New features:
> 
> - Introduce PERF_RECORD_SWITCH(_CPU_WIDE) and use it in 'record' to
>   ask for context switches, allowing non priviledged tasks to know
>   when they are switched in and out, which wasn't possible with
>   the other context switch tracepoint and software events, see the
>   patch description for a comprehensive justification (Adrian Hunter)
> 
> - Stop collecting /proc/kallsyms in perf.data files, saving about
>   4.5MB on a typical x86-64 system, use the symbol resolution
>   routines used in all the other tools (report, top, etc) now that
>   we can ask libtraceevent to use perf's symbol resolution code.
>   (Arnaldo Carvalho de Melo)
> 
> User visible fixes:
> 
> - Expose perf's symbol resolver to libtraceecent, so that its plugins can
>   resolve tracepoint fields to kernel functions, like the 'function' field
>   in the "timer:hrtimer_start tracepoint" (Arnaldo Carvalho de Melo)
> 
> Infrastructure:
> 
> - Map propagation of thread and cpu maps improvements, prep work for
>   'perf stat' new features (Jiri Olsa)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Adrian Hunter (5):
>       perf: Add PERF_RECORD_SWITCH to indicate context switches
>       perf tools: Add new PERF_RECORD_SWITCH event
>       perf record: Add option --switch-events to select PERF_RECORD_SWITCH events
>       perf script: Don't assume evsel position of tracking events
>       perf script: Add option --show-switch-events
> 
> Arnaldo Carvalho de Melo (8):
>       perf symbols: Add front end cache for DSO symbol lookup
>       perf symbols: Introduce map__is_(kernel,kmodule)()
>       tools lib traceevent: Allow setting an alternative symbol resolver
>       perf symbols: Provide libtraceevent callback to resolve kernel symbols
>       perf trace: Provide libtracevent with a kernel symbol resolver
>       perf script: Switch from perf.data's kallsyms to perf's symbol resolver
>       perf tools: Stop reading the kallsyms data from perf.data
>       perf tools: Stop copying kallsyms into the perf.data file header
> 
> Jiri Olsa (5):
>       perf test: Check for refcnt in thread_map test
>       perf evlist: Force perf_evlist__set_maps to propagate maps through events
>       perf evlist: Use bool instead of target argument in propagate_maps()
>       perf evlist: Tolerate NULL maps in propagate_maps
>       perf header: Use argv style storage for cmdline feature data
> 
>  include/uapi/linux/perf_event.h          |  31 +++++++++-
>  kernel/events/core.c                     | 103 +++++++++++++++++++++++++++++++
>  tools/lib/traceevent/event-parse.c       |  68 +++++++++++++++++++-
>  tools/lib/traceevent/event-parse.h       |   8 +++
>  tools/perf/Documentation/perf-record.txt |   4 ++
>  tools/perf/Documentation/perf-script.txt |   4 ++
>  tools/perf/builtin-inject.c              |   1 +
>  tools/perf/builtin-record.c              |   7 +++
>  tools/perf/builtin-script.c              |  48 ++++++++++++--
>  tools/perf/builtin-trace.c               |   3 +
>  tools/perf/perf.h                        |   1 +
>  tools/perf/tests/thread-map.c            |   4 ++
>  tools/perf/util/dso.h                    |   4 ++
>  tools/perf/util/event.c                  |  28 +++++++++
>  tools/perf/util/event.h                  |  12 ++++
>  tools/perf/util/evlist.c                 |  28 +++++++--
>  tools/perf/util/evlist.h                 |  12 ++--
>  tools/perf/util/evsel.c                  |   4 ++
>  tools/perf/util/header.c                 |  35 ++++++-----
>  tools/perf/util/header.h                 |   1 +
>  tools/perf/util/machine.c                |  25 ++++++++
>  tools/perf/util/machine.h                |   6 ++
>  tools/perf/util/map.c                    |  14 +++++
>  tools/perf/util/map.h                    |   7 +++
>  tools/perf/util/record.c                 |  10 +++
>  tools/perf/util/session.c                |  21 +++++++
>  tools/perf/util/symbol.c                 |   7 ++-
>  tools/perf/util/tool.h                   |   1 +
>  tools/perf/util/trace-event-info.c       |  22 +++----
>  tools/perf/util/trace-event-parse.c      |  30 ---------
>  tools/perf/util/trace-event-read.c       |  28 ++++-----
>  tools/perf/util/trace-event.c            |  45 +++++++++-----
>  tools/perf/util/trace-event.h            |   1 +
>  33 files changed, 513 insertions(+), 110 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/18] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit a11c51acc52822754d66a11c15f6f6edd4d23c55:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-07-21 07:58:06 +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 7c14898ba9386ee5c939bb418643ac6baff52840:

  perf script: Add option --show-switch-events (2015-07-23 22:51:14 -0300)

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

New features:

- Introduce PERF_RECORD_SWITCH(_CPU_WIDE) and use it in 'record' to
  ask for context switches, allowing non priviledged tasks to know
  when they are switched in and out, which wasn't possible with
  the other context switch tracepoint and software events, see the
  patch description for a comprehensive justification (Adrian Hunter)

- Stop collecting /proc/kallsyms in perf.data files, saving about
  4.5MB on a typical x86-64 system, use the symbol resolution
  routines used in all the other tools (report, top, etc) now that
  we can ask libtraceevent to use perf's symbol resolution code.
  (Arnaldo Carvalho de Melo)

User visible fixes:

- Expose perf's symbol resolver to libtraceecent, so that its plugins can
  resolve tracepoint fields to kernel functions, like the 'function' field
  in the "timer:hrtimer_start tracepoint" (Arnaldo Carvalho de Melo)

Infrastructure:

- Map propagation of thread and cpu maps improvements, prep work for
  'perf stat' new features (Jiri Olsa)

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

----------------------------------------------------------------
Adrian Hunter (5):
      perf: Add PERF_RECORD_SWITCH to indicate context switches
      perf tools: Add new PERF_RECORD_SWITCH event
      perf record: Add option --switch-events to select PERF_RECORD_SWITCH events
      perf script: Don't assume evsel position of tracking events
      perf script: Add option --show-switch-events

Arnaldo Carvalho de Melo (8):
      perf symbols: Add front end cache for DSO symbol lookup
      perf symbols: Introduce map__is_(kernel,kmodule)()
      tools lib traceevent: Allow setting an alternative symbol resolver
      perf symbols: Provide libtraceevent callback to resolve kernel symbols
      perf trace: Provide libtracevent with a kernel symbol resolver
      perf script: Switch from perf.data's kallsyms to perf's symbol resolver
      perf tools: Stop reading the kallsyms data from perf.data
      perf tools: Stop copying kallsyms into the perf.data file header

Jiri Olsa (5):
      perf test: Check for refcnt in thread_map test
      perf evlist: Force perf_evlist__set_maps to propagate maps through events
      perf evlist: Use bool instead of target argument in propagate_maps()
      perf evlist: Tolerate NULL maps in propagate_maps
      perf header: Use argv style storage for cmdline feature data

 include/uapi/linux/perf_event.h          |  31 +++++++++-
 kernel/events/core.c                     | 103 +++++++++++++++++++++++++++++++
 tools/lib/traceevent/event-parse.c       |  68 +++++++++++++++++++-
 tools/lib/traceevent/event-parse.h       |   8 +++
 tools/perf/Documentation/perf-record.txt |   4 ++
 tools/perf/Documentation/perf-script.txt |   4 ++
 tools/perf/builtin-inject.c              |   1 +
 tools/perf/builtin-record.c              |   7 +++
 tools/perf/builtin-script.c              |  48 ++++++++++++--
 tools/perf/builtin-trace.c               |   3 +
 tools/perf/perf.h                        |   1 +
 tools/perf/tests/thread-map.c            |   4 ++
 tools/perf/util/dso.h                    |   4 ++
 tools/perf/util/event.c                  |  28 +++++++++
 tools/perf/util/event.h                  |  12 ++++
 tools/perf/util/evlist.c                 |  28 +++++++--
 tools/perf/util/evlist.h                 |  12 ++--
 tools/perf/util/evsel.c                  |   4 ++
 tools/perf/util/header.c                 |  35 ++++++-----
 tools/perf/util/header.h                 |   1 +
 tools/perf/util/machine.c                |  25 ++++++++
 tools/perf/util/machine.h                |   6 ++
 tools/perf/util/map.c                    |  14 +++++
 tools/perf/util/map.h                    |   7 +++
 tools/perf/util/record.c                 |  10 +++
 tools/perf/util/session.c                |  21 +++++++
 tools/perf/util/symbol.c                 |   7 ++-
 tools/perf/util/tool.h                   |   1 +
 tools/perf/util/trace-event-info.c       |  22 +++----
 tools/perf/util/trace-event-parse.c      |  30 ---------
 tools/perf/util/trace-event-read.c       |  28 ++++-----
 tools/perf/util/trace-event.c            |  45 +++++++++-----
 tools/perf/util/trace-event.h            |   1 +
 33 files changed, 513 insertions(+), 110 deletions(-)

Re: [GIT PULL 00/18] 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 aa891009ee8863944a96ba4a348102f3d5f5f931:
> 
>   Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-05-15 08:36:33 +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 2d8e405acd787f4b975f73e0f8d9804b272c00f0:
> 
>   perf bench numa: Share sched_getcpu() __weak def with cloexec.c (2015-05-18 12:36:46 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible:
> 
> - Fix "Command" sort_entry's cmp and collapse function (Jiri Olsa)
> 
> - Load map's symtab before 'perf probe' glob matching (Wang Nan)
> 
> - Set vmlinux_path__nr_entries to 0 in vmlinux_path__exit, to fix
>   the use case where this code is called multiple times, which wasn't
>   that common when it was introduced but seems to be now (Wang Nan).
> 
> Infrastructure:
> 
> - Protect dso symtab and cache operations with a mutex (Namhyung Kim)
> 
> - Make all refcnt operations use atomic.h (Arnaldo Carvalho de Melo)
> 
> - Install libtraceevent.a into libdir (Wang Nan)
> 
> Build fixes:
> 
> - Fix one build failure on RHEL5 by making 'perf bench numa' use the
>   __weak sched_getcpu() provided by cloexec.h (Arnaldo Carvalho de Melo)
> 
> - Fix dwarf-aux.c compilation on i386 (Jiri Olsa)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (6):
>       perf tools: Use atomic.h for the map_groups refcount
>       perf machine: Stop accessing atomic_t::counter directly
>       perf evlist: Use atomic.h for the perf_mmap refcount
>       perf cgroup: Use atomic.h for refcounting
>       perf tools: Elliminate alignment holes
>       perf bench numa: Share sched_getcpu() __weak def with cloexec.c
> 
> Jiri Olsa (2):
>       perf tools: Fix dwarf-aux.c compilation on i386
>       perf tools: Fix "Command" sort_entry's cmp and collapse function
> 
> Namhyung Kim (5):
>       perf tools: Add rm_rf() utility function
>       perf tools: Introduce copyfile_offset() function
>       perf symbols: Protect dso symbol loading using a mutex
>       perf symbols: Protect dso cache tree using dso->lock
>       perf tools: Protect dso cache fd with a mutex
> 
> Wang Nan (5):
>       perf probe: Load map before glob matching
>       tools include: add __aligned_u64 to types.h.
>       perf tools: Set vmlinux_path__nr_entries to 0 in vmlinux_path__exit
>       tools lib traceevent: Install libtraceevent.a into libdir
>       tools build: Change FEATURE_TESTS and FEATURE_DISPLAY to weak binding
> 
>  tools/build/Makefile.feature       |   4 +-
>  tools/include/linux/types.h        |   4 ++
>  tools/lib/traceevent/Makefile      |  20 ++++--
>  tools/perf/bench/numa.c            |   1 +
>  tools/perf/builtin-timechart.c     |   4 +-
>  tools/perf/tests/thread-mg-share.c |  12 ++--
>  tools/perf/util/cgroup.c           |  10 +--
>  tools/perf/util/cgroup.h           |   4 +-
>  tools/perf/util/dso.c              | 134 ++++++++++++++++++++++++++++---------
>  tools/perf/util/dso.h              |   1 +
>  tools/perf/util/dwarf-aux.c        |   8 +--
>  tools/perf/util/evlist.c           |  12 ++--
>  tools/perf/util/evlist.h           |   5 +-
>  tools/perf/util/evsel.h            |   4 +-
>  tools/perf/util/machine.c          |   2 +-
>  tools/perf/util/map.c              |   4 +-
>  tools/perf/util/map.h              |   6 +-
>  tools/perf/util/probe-event.c      |   3 +
>  tools/perf/util/sort.c             |   4 +-
>  tools/perf/util/symbol.c           |  35 +++++++---
>  tools/perf/util/thread.h           |   2 +-
>  tools/perf/util/util.c             |  81 +++++++++++++++++++---
>  tools/perf/util/util.h             |   2 +
>  23 files changed, 263 insertions(+), 99 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/18] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider applying,

- Arnaldo

The following changes since commit aa891009ee8863944a96ba4a348102f3d5f5f931:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-05-15 08:36:33 +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 2d8e405acd787f4b975f73e0f8d9804b272c00f0:

  perf bench numa: Share sched_getcpu() __weak def with cloexec.c (2015-05-18 12:36:46 -0300)

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

User visible:

- Fix "Command" sort_entry's cmp and collapse function (Jiri Olsa)

- Load map's symtab before 'perf probe' glob matching (Wang Nan)

- Set vmlinux_path__nr_entries to 0 in vmlinux_path__exit, to fix
  the use case where this code is called multiple times, which wasn't
  that common when it was introduced but seems to be now (Wang Nan).

Infrastructure:

- Protect dso symtab and cache operations with a mutex (Namhyung Kim)

- Make all refcnt operations use atomic.h (Arnaldo Carvalho de Melo)

- Install libtraceevent.a into libdir (Wang Nan)

Build fixes:

- Fix one build failure on RHEL5 by making 'perf bench numa' use the
  __weak sched_getcpu() provided by cloexec.h (Arnaldo Carvalho de Melo)

- Fix dwarf-aux.c compilation on i386 (Jiri Olsa)

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

----------------------------------------------------------------
Arnaldo Carvalho de Melo (6):
      perf tools: Use atomic.h for the map_groups refcount
      perf machine: Stop accessing atomic_t::counter directly
      perf evlist: Use atomic.h for the perf_mmap refcount
      perf cgroup: Use atomic.h for refcounting
      perf tools: Elliminate alignment holes
      perf bench numa: Share sched_getcpu() __weak def with cloexec.c

Jiri Olsa (2):
      perf tools: Fix dwarf-aux.c compilation on i386
      perf tools: Fix "Command" sort_entry's cmp and collapse function

Namhyung Kim (5):
      perf tools: Add rm_rf() utility function
      perf tools: Introduce copyfile_offset() function
      perf symbols: Protect dso symbol loading using a mutex
      perf symbols: Protect dso cache tree using dso->lock
      perf tools: Protect dso cache fd with a mutex

Wang Nan (5):
      perf probe: Load map before glob matching
      tools include: add __aligned_u64 to types.h.
      perf tools: Set vmlinux_path__nr_entries to 0 in vmlinux_path__exit
      tools lib traceevent: Install libtraceevent.a into libdir
      tools build: Change FEATURE_TESTS and FEATURE_DISPLAY to weak binding

 tools/build/Makefile.feature       |   4 +-
 tools/include/linux/types.h        |   4 ++
 tools/lib/traceevent/Makefile      |  20 ++++--
 tools/perf/bench/numa.c            |   1 +
 tools/perf/builtin-timechart.c     |   4 +-
 tools/perf/tests/thread-mg-share.c |  12 ++--
 tools/perf/util/cgroup.c           |  10 +--
 tools/perf/util/cgroup.h           |   4 +-
 tools/perf/util/dso.c              | 134 ++++++++++++++++++++++++++++---------
 tools/perf/util/dso.h              |   1 +
 tools/perf/util/dwarf-aux.c        |   8 +--
 tools/perf/util/evlist.c           |  12 ++--
 tools/perf/util/evlist.h           |   5 +-
 tools/perf/util/evsel.h            |   4 +-
 tools/perf/util/machine.c          |   2 +-
 tools/perf/util/map.c              |   4 +-
 tools/perf/util/map.h              |   6 +-
 tools/perf/util/probe-event.c      |   3 +
 tools/perf/util/sort.c             |   4 +-
 tools/perf/util/symbol.c           |  35 +++++++---
 tools/perf/util/thread.h           |   2 +-
 tools/perf/util/util.c             |  81 +++++++++++++++++++---
 tools/perf/util/util.h             |   2 +
 23 files changed, 263 insertions(+), 99 deletions(-)

Re: [GIT PULL 00/18] 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 cfa0bd52d0ba9b852f76c7b3f1055edd5e5c7846:
> 
>   Merge tag 'perf-core-for-mingo-2' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2014-12-08 07:45:45 +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 e09b18d4907992d3d615b215c1abf585721b2810:
> 
>   perf trace: Provide a better explanation when mmap fails (2014-12-11 18:04:10 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible:
> 
> - Mark events as (x86 only) in help output for 'perf kvm stat live" (Alexander Yarygin)
> 
> - Provide a better explanation when mmap fails in 'trace' (Arnaldo Carvalho de Melo)
> 
> - Add --buildid-dir option to set cache directory, i.e. use:
> 
>       $ perf --buildid-dir /path/to/dir tool --tool-options
> 
>   (Jiri Olsa)
> 
> - Fix memcpy/memset 'perf bench' output (Rabin Vicent)
> 
> - Fix 'perf test' attr tests size values to cope with machine state on
>   interrupt ABI changes (Jiri Olsa)
> 
> - Fixup callchain type parameter handling error message (Kan Liang)
> 
> Infrastructure/cleanups:
> 
> - calloc/xcalloc: Fix argument order (Arjun Sreedharan)
> 
> - Move filename__read_int from tools/perf/ to tools/lib, add sysctl__read_int
>   there and use it in place of ad-hoc copies (Arnaldo Carvalho de Melo)
> 
> - Use single strcmp call instead of two (Jiri Olsa)
> 
> - Remove extra debugdir variables in 'perf buildid-cache' (Jiri Olsa)
> 
> - Fix -a segfault related to kcore handling in 'perf buildid-cache' (Jiri Olsa)
> 
> - Move cpumode resolve code to add_callchain_ip (Kan Liang)
> 
> - Merge memset into memcpy 'perf bench' (Rabin Vincent)
> 
> - Change print format from %lu to %PRIu64 in the hists browser (Tom Huynh)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Alexander Yarygin (1):
>       perf kvm stat live: Mark events as (x86 only) in help output
> 
> Arjun Sreedharan (1):
>       calloc/xcalloc: Fix argument order
> 
> Arnaldo Carvalho de Melo (5):
>       tools lib fs: Adopt filename__read_int from tools/perf/
>       tools lib fs: Add sysctl__read_int helper
>       perf tools: Use sysctl__read_int instead of ad-hoc copies
>       perf evlist: Introduce strerror_mmap method
>       perf trace: Provide a better explanation when mmap fails
> 
> Jiri Olsa (5):
>       perf tools: Use single strcmp call instead of two
>       perf buildid-cache: Remove extra debugdir variables
>       perf buildid cache: Fix -a segfault related to kcore handling
>       perf tools: Add --buildid-dir option to set cache directory
>       perf tests: Fix attr tests size values to cope with machine state on interrupt ABI changes
> 
> Kan Liang (2):
>       perf callchain: Fixup parameter handling error message
>       perf callchain: Move cpumode resolve code to add_callchain_ip
> 
> Rabin Vincent (3):
>       perf bench: Prepare memcpy for merge
>       perf bench: Merge memset into memcpy
>       perf bench: Fix memcpy/memset output
> 
> Tom Huynh (1):
>       perf hists browser: Change print format from %lu to %PRIu64
> 
>  scripts/kconfig/mconf.c            |   4 +-
>  tools/lib/api/fs/fs.c              |  34 +++++
>  tools/lib/api/fs/fs.h              |   3 +
>  tools/perf/Documentation/perf.txt  |   4 +
>  tools/perf/Makefile.perf           |   1 -
>  tools/perf/bench/mem-memcpy.c      | 286 ++++++++++++++++++++++++----------
>  tools/perf/bench/mem-memset.c      | 304 -------------------------------------
>  tools/perf/builtin-buildid-cache.c |  13 +-
>  tools/perf/builtin-kvm.c           |   3 +-
>  tools/perf/builtin-trace.c         |  12 +-
>  tools/perf/perf.c                  |  14 +-
>  tools/perf/tests/attr/base-record  |   2 +-
>  tools/perf/tests/attr/base-stat    |   2 +-
>  tools/perf/ui/browsers/hists.c     |   2 +-
>  tools/perf/ui/hist.c               |   4 +-
>  tools/perf/util/build-id.c         |   9 +-
>  tools/perf/util/callchain.c        |   2 +-
>  tools/perf/util/config.c           |  10 +-
>  tools/perf/util/evlist.c           |  23 +++
>  tools/perf/util/evlist.h           |   1 +
>  tools/perf/util/machine.c          |  72 +++++----
>  tools/perf/util/record.c           |  11 +-
>  tools/perf/util/util.c             |  26 +---
>  tools/perf/util/util.h             |   3 +-
>  tools/thermal/tmon/sysfs.c         |   6 +-
>  25 files changed, 350 insertions(+), 501 deletions(-)
>  delete mode 100644 tools/perf/bench/mem-memset.c

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/18] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit cfa0bd52d0ba9b852f76c7b3f1055edd5e5c7846:

  Merge tag 'perf-core-for-mingo-2' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2014-12-08 07:45:45 +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 e09b18d4907992d3d615b215c1abf585721b2810:

  perf trace: Provide a better explanation when mmap fails (2014-12-11 18:04:10 -0300)

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

User visible:

- Mark events as (x86 only) in help output for 'perf kvm stat live" (Alexander Yarygin)

- Provide a better explanation when mmap fails in 'trace' (Arnaldo Carvalho de Melo)

- Add --buildid-dir option to set cache directory, i.e. use:

      $ perf --buildid-dir /path/to/dir tool --tool-options

  (Jiri Olsa)

- Fix memcpy/memset 'perf bench' output (Rabin Vicent)

- Fix 'perf test' attr tests size values to cope with machine state on
  interrupt ABI changes (Jiri Olsa)

- Fixup callchain type parameter handling error message (Kan Liang)

Infrastructure/cleanups:

- calloc/xcalloc: Fix argument order (Arjun Sreedharan)

- Move filename__read_int from tools/perf/ to tools/lib, add sysctl__read_int
  there and use it in place of ad-hoc copies (Arnaldo Carvalho de Melo)

- Use single strcmp call instead of two (Jiri Olsa)

- Remove extra debugdir variables in 'perf buildid-cache' (Jiri Olsa)

- Fix -a segfault related to kcore handling in 'perf buildid-cache' (Jiri Olsa)

- Move cpumode resolve code to add_callchain_ip (Kan Liang)

- Merge memset into memcpy 'perf bench' (Rabin Vincent)

- Change print format from %lu to %PRIu64 in the hists browser (Tom Huynh)

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

----------------------------------------------------------------
Alexander Yarygin (1):
      perf kvm stat live: Mark events as (x86 only) in help output

Arjun Sreedharan (1):
      calloc/xcalloc: Fix argument order

Arnaldo Carvalho de Melo (5):
      tools lib fs: Adopt filename__read_int from tools/perf/
      tools lib fs: Add sysctl__read_int helper
      perf tools: Use sysctl__read_int instead of ad-hoc copies
      perf evlist: Introduce strerror_mmap method
      perf trace: Provide a better explanation when mmap fails

Jiri Olsa (5):
      perf tools: Use single strcmp call instead of two
      perf buildid-cache: Remove extra debugdir variables
      perf buildid cache: Fix -a segfault related to kcore handling
      perf tools: Add --buildid-dir option to set cache directory
      perf tests: Fix attr tests size values to cope with machine state on interrupt ABI changes

Kan Liang (2):
      perf callchain: Fixup parameter handling error message
      perf callchain: Move cpumode resolve code to add_callchain_ip

Rabin Vincent (3):
      perf bench: Prepare memcpy for merge
      perf bench: Merge memset into memcpy
      perf bench: Fix memcpy/memset output

Tom Huynh (1):
      perf hists browser: Change print format from %lu to %PRIu64

 scripts/kconfig/mconf.c            |   4 +-
 tools/lib/api/fs/fs.c              |  34 +++++
 tools/lib/api/fs/fs.h              |   3 +
 tools/perf/Documentation/perf.txt  |   4 +
 tools/perf/Makefile.perf           |   1 -
 tools/perf/bench/mem-memcpy.c      | 286 ++++++++++++++++++++++++----------
 tools/perf/bench/mem-memset.c      | 304 -------------------------------------
 tools/perf/builtin-buildid-cache.c |  13 +-
 tools/perf/builtin-kvm.c           |   3 +-
 tools/perf/builtin-trace.c         |  12 +-
 tools/perf/perf.c                  |  14 +-
 tools/perf/tests/attr/base-record  |   2 +-
 tools/perf/tests/attr/base-stat    |   2 +-
 tools/perf/ui/browsers/hists.c     |   2 +-
 tools/perf/ui/hist.c               |   4 +-
 tools/perf/util/build-id.c         |   9 +-
 tools/perf/util/callchain.c        |   2 +-
 tools/perf/util/config.c           |  10 +-
 tools/perf/util/evlist.c           |  23 +++
 tools/perf/util/evlist.h           |   1 +
 tools/perf/util/machine.c          |  72 +++++----
 tools/perf/util/record.c           |  11 +-
 tools/perf/util/util.c             |  26 +---
 tools/perf/util/util.h             |   3 +-
 tools/thermal/tmon/sysfs.c         |   6 +-
 25 files changed, 350 insertions(+), 501 deletions(-)
 delete mode 100644 tools/perf/bench/mem-memset.c

Re: [GIT PULL 00/18] 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 daa01794a4a36a1da1b09a529adec0c8c0b94ab2:
> 
>   perf evsel: Do not call pevent_free_format when deleting tracepoint (2014-11-06 17:47:14 -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
> 
> for you to fetch changes up to daa01794a4a36a1da1b09a529adec0c8c0b94ab2:
> 
>   perf evsel: Do not call pevent_free_format when deleting tracepoint (2014-11-06 17:47:14 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> Infrastructure:
> 
> o Add gzip decompression support for kernel modules (Namhyung Kim)
> 
> o More prep patches for Intel PT, including a a thread stack and
>   more stuff made available via the database export mechanism (Adrian Hunter)
> 
> o Optimize checking that tracepoint events are defined in perf script perl/python (Jiri Olsa)
> 
> o Do not free pevent when deleting tracepoint evsel (Jiri Olsa)
> 
> o Fix build-id matching for vmlinux (Namhyung Kim)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/18] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit daa01794a4a36a1da1b09a529adec0c8c0b94ab2:

  perf evsel: Do not call pevent_free_format when deleting tracepoint (2014-11-06 17:47:14 -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

for you to fetch changes up to daa01794a4a36a1da1b09a529adec0c8c0b94ab2:

  perf evsel: Do not call pevent_free_format when deleting tracepoint (2014-11-06 17:47:14 -0300)

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

Infrastructure:

o Add gzip decompression support for kernel modules (Namhyung Kim)

o More prep patches for Intel PT, including a a thread stack and
  more stuff made available via the database export mechanism (Adrian Hunter)

o Optimize checking that tracepoint events are defined in perf script perl/python (Jiri Olsa)

o Do not free pevent when deleting tracepoint evsel (Jiri Olsa)

o Fix build-id matching for vmlinux (Namhyung Kim)

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

----------------------------------------------------------------

Re: [GIT PULL 00/18] 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 f373da34282560c60f0c197690eecb1b2dc49fc0:
> 
>   Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2014-08-14 10:38:40 +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 759e612bf96627b64fcafe4174b3f6f2dedf2c0d:
> 
>   perf stat: Use strerror_r instead of strerror (2014-08-15 13:08:40 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible:
> 
> . Warn user to rebuild target with debuginfo in 'perf probe' (Masami Hiramatsu)
> 
> . Don't truncate Intel style addresses in 'annotate'. (Alex Converse)
> 
> Developer stuff:
> 
> . Annotate PMU related list_head members with type info. (Cody P Schafer)
> 
> . Add the triplet used for arm64 by Android (Elliott Hughes)
> 
> . Replace thread unsafe strerror() with strerror_r() accross the
>   whole tools/perf/ tree (Masami Hiramatsu)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Alex Converse (1):
>       perf annotate: Don't truncate Intel style addresses
> 
> Cody P Schafer (1):
>       perf tools: Annotate PMU related list_head members with type info
> 
> Elliott Hughes (1):
>       perf tools: Add arm64 triplets
> 
> Masami Hiramatsu (14):
>       perf probe: Warn user to rebuild target with debuginfo
>       perf probe: Don't use strerror if strlist__add failed
>       perf: Use strerror_r instead of strerror
>       perf probe: Make error messages thread-safe
>       perf util: Replace strerror with strerror_r for thread-safety
>       perf top: Use strerror_r instead of strerror
>       perf trace: Use strerror_r instead of strerror
>       perf record: Use strerror_r instead of strerror
>       perf test: Use strerror_r instead of strerror
>       perf sched: Use strerror_r instead of strerror
>       perf buildid-cache: Use strerror_r instead of strerror
>       perf kvm: Use strerror_r instead of strerror
>       perf help: Use strerror_r instead of strerror
>       perf stat: Use strerror_r instead of strerror
> 
> Namhyung Kim (1):
>       perf report: Relax -g option parsing not to limit the option order
> 
>  tools/perf/arch/common.c                  |  9 +++
>  tools/perf/builtin-buildid-cache.c        |  7 ++-
>  tools/perf/builtin-help.c                 | 20 +++++--
>  tools/perf/builtin-kvm.c                  |  7 ++-
>  tools/perf/builtin-probe.c                |  5 +-
>  tools/perf/builtin-record.c               |  7 ++-
>  tools/perf/builtin-sched.c                |  4 +-
>  tools/perf/builtin-stat.c                 |  2 +-
>  tools/perf/builtin-top.c                  |  2 +-
>  tools/perf/builtin-trace.c                |  6 +-
>  tools/perf/perf.c                         | 10 +++-
>  tools/perf/tests/builtin-test.c           |  4 +-
>  tools/perf/tests/mmap-basic.c             |  7 ++-
>  tools/perf/tests/open-syscall-all-cpus.c  |  5 +-
>  tools/perf/tests/open-syscall-tp-fields.c |  7 ++-
>  tools/perf/tests/open-syscall.c           |  3 +-
>  tools/perf/tests/perf-record.c            | 13 +++--
>  tools/perf/tests/rdpmc.c                  |  6 +-
>  tools/perf/tests/sw-clock.c               |  6 +-
>  tools/perf/tests/task-exit.c              |  6 +-
>  tools/perf/util/annotate.c                | 12 +++-
>  tools/perf/util/callchain.c               | 95 +++++++++++++------------------
>  tools/perf/util/cloexec.c                 |  6 +-
>  tools/perf/util/data.c                    |  8 ++-
>  tools/perf/util/debug.h                   |  3 +
>  tools/perf/util/dso.c                     |  8 ++-
>  tools/perf/util/evlist.c                  |  2 +-
>  tools/perf/util/evsel.c                   |  7 ++-
>  tools/perf/util/parse-events.c            |  5 +-
>  tools/perf/util/pmu.c                     |  4 +-
>  tools/perf/util/pmu.h                     |  6 +-
>  tools/perf/util/probe-event.c             | 75 +++++++++++++-----------
>  tools/perf/util/probe-finder.c            |  7 ++-
>  tools/perf/util/run-command.c             |  9 ++-
>  tools/perf/util/util.c                    |  5 +-
>  35 files changed, 234 insertions(+), 154 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/18] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit f373da34282560c60f0c197690eecb1b2dc49fc0:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2014-08-14 10:38:40 +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 759e612bf96627b64fcafe4174b3f6f2dedf2c0d:

  perf stat: Use strerror_r instead of strerror (2014-08-15 13:08:40 -0300)

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

User visible:

. Warn user to rebuild target with debuginfo in 'perf probe' (Masami Hiramatsu)

. Don't truncate Intel style addresses in 'annotate'. (Alex Converse)

Developer stuff:

. Annotate PMU related list_head members with type info. (Cody P Schafer)

. Add the triplet used for arm64 by Android (Elliott Hughes)

. Replace thread unsafe strerror() with strerror_r() accross the
  whole tools/perf/ tree (Masami Hiramatsu)

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

----------------------------------------------------------------
Alex Converse (1):
      perf annotate: Don't truncate Intel style addresses

Cody P Schafer (1):
      perf tools: Annotate PMU related list_head members with type info

Elliott Hughes (1):
      perf tools: Add arm64 triplets

Masami Hiramatsu (14):
      perf probe: Warn user to rebuild target with debuginfo
      perf probe: Don't use strerror if strlist__add failed
      perf: Use strerror_r instead of strerror
      perf probe: Make error messages thread-safe
      perf util: Replace strerror with strerror_r for thread-safety
      perf top: Use strerror_r instead of strerror
      perf trace: Use strerror_r instead of strerror
      perf record: Use strerror_r instead of strerror
      perf test: Use strerror_r instead of strerror
      perf sched: Use strerror_r instead of strerror
      perf buildid-cache: Use strerror_r instead of strerror
      perf kvm: Use strerror_r instead of strerror
      perf help: Use strerror_r instead of strerror
      perf stat: Use strerror_r instead of strerror

Namhyung Kim (1):
      perf report: Relax -g option parsing not to limit the option order

 tools/perf/arch/common.c                  |  9 +++
 tools/perf/builtin-buildid-cache.c        |  7 ++-
 tools/perf/builtin-help.c                 | 20 +++++--
 tools/perf/builtin-kvm.c                  |  7 ++-
 tools/perf/builtin-probe.c                |  5 +-
 tools/perf/builtin-record.c               |  7 ++-
 tools/perf/builtin-sched.c                |  4 +-
 tools/perf/builtin-stat.c                 |  2 +-
 tools/perf/builtin-top.c                  |  2 +-
 tools/perf/builtin-trace.c                |  6 +-
 tools/perf/perf.c                         | 10 +++-
 tools/perf/tests/builtin-test.c           |  4 +-
 tools/perf/tests/mmap-basic.c             |  7 ++-
 tools/perf/tests/open-syscall-all-cpus.c  |  5 +-
 tools/perf/tests/open-syscall-tp-fields.c |  7 ++-
 tools/perf/tests/open-syscall.c           |  3 +-
 tools/perf/tests/perf-record.c            | 13 +++--
 tools/perf/tests/rdpmc.c                  |  6 +-
 tools/perf/tests/sw-clock.c               |  6 +-
 tools/perf/tests/task-exit.c              |  6 +-
 tools/perf/util/annotate.c                | 12 +++-
 tools/perf/util/callchain.c               | 95 +++++++++++++------------------
 tools/perf/util/cloexec.c                 |  6 +-
 tools/perf/util/data.c                    |  8 ++-
 tools/perf/util/debug.h                   |  3 +
 tools/perf/util/dso.c                     |  8 ++-
 tools/perf/util/evlist.c                  |  2 +-
 tools/perf/util/evsel.c                   |  7 ++-
 tools/perf/util/parse-events.c            |  5 +-
 tools/perf/util/pmu.c                     |  4 +-
 tools/perf/util/pmu.h                     |  6 +-
 tools/perf/util/probe-event.c             | 75 +++++++++++++-----------
 tools/perf/util/probe-finder.c            |  7 ++-
 tools/perf/util/run-command.c             |  9 ++-
 tools/perf/util/util.c                    |  5 +-
 35 files changed, 234 insertions(+), 154 deletions(-)

[GIT PULL 00/18] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit f373da34282560c60f0c197690eecb1b2dc49fc0:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2014-08-14 10:38:40 +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 759e612bf96627b64fcafe4174b3f6f2dedf2c0d:

  perf stat: Use strerror_r instead of strerror (2014-08-15 13:08:40 -0300)

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

User visible:

. Warn user to rebuild target with debuginfo in 'perf probe' (Masami Hiramatsu)

. Don't truncate Intel style addresses in 'annotate'. (Alex Converse)

Developer stuff:

. Annotate PMU related list_head members with type info. (Cody P Schafer)

. Add the triplet used for arm64 by Android (Elliott Hughes)

. Replace thread unsafe strerror() with strerror_r() accross the
  whole tools/perf/ tree (Masami Hiramatsu)

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

----------------------------------------------------------------
Alex Converse (1):
      perf annotate: Don't truncate Intel style addresses

Cody P Schafer (1):
      perf tools: Annotate PMU related list_head members with type info

Elliott Hughes (1):
      perf tools: Add arm64 triplets

Masami Hiramatsu (14):
      perf probe: Warn user to rebuild target with debuginfo
      perf probe: Don't use strerror if strlist__add failed
      perf: Use strerror_r instead of strerror
      perf probe: Make error messages thread-safe
      perf util: Replace strerror with strerror_r for thread-safety
      perf top: Use strerror_r instead of strerror
      perf trace: Use strerror_r instead of strerror
      perf record: Use strerror_r instead of strerror
      perf test: Use strerror_r instead of strerror
      perf sched: Use strerror_r instead of strerror
      perf buildid-cache: Use strerror_r instead of strerror
      perf kvm: Use strerror_r instead of strerror
      perf help: Use strerror_r instead of strerror
      perf stat: Use strerror_r instead of strerror

Namhyung Kim (1):
      perf report: Relax -g option parsing not to limit the option order

 tools/perf/arch/common.c                  |  9 +++
 tools/perf/builtin-buildid-cache.c        |  7 ++-
 tools/perf/builtin-help.c                 | 20 +++++--
 tools/perf/builtin-kvm.c                  |  7 ++-
 tools/perf/builtin-probe.c                |  5 +-
 tools/perf/builtin-record.c               |  7 ++-
 tools/perf/builtin-sched.c                |  4 +-
 tools/perf/builtin-stat.c                 |  2 +-
 tools/perf/builtin-top.c                  |  2 +-
 tools/perf/builtin-trace.c                |  6 +-
 tools/perf/perf.c                         | 10 +++-
 tools/perf/tests/builtin-test.c           |  4 +-
 tools/perf/tests/mmap-basic.c             |  7 ++-
 tools/perf/tests/open-syscall-all-cpus.c  |  5 +-
 tools/perf/tests/open-syscall-tp-fields.c |  7 ++-
 tools/perf/tests/open-syscall.c           |  3 +-
 tools/perf/tests/perf-record.c            | 13 +++--
 tools/perf/tests/rdpmc.c                  |  6 +-
 tools/perf/tests/sw-clock.c               |  6 +-
 tools/perf/tests/task-exit.c              |  6 +-
 tools/perf/util/annotate.c                | 12 +++-
 tools/perf/util/callchain.c               | 95 +++++++++++++------------------
 tools/perf/util/cloexec.c                 |  6 +-
 tools/perf/util/data.c                    |  8 ++-
 tools/perf/util/debug.h                   |  3 +
 tools/perf/util/dso.c                     |  8 ++-
 tools/perf/util/evlist.c                  |  2 +-
 tools/perf/util/evsel.c                   |  7 ++-
 tools/perf/util/parse-events.c            |  5 +-
 tools/perf/util/pmu.c                     |  4 +-
 tools/perf/util/pmu.h                     |  6 +-
 tools/perf/util/probe-event.c             | 75 +++++++++++++-----------
 tools/perf/util/probe-finder.c            |  7 ++-
 tools/perf/util/run-command.c             |  9 ++-
 tools/perf/util/util.c                    |  5 +-
 35 files changed, 234 insertions(+), 154 deletions(-)