[GIT PULL 00/16] perf/core improvements and fixes

[GIT PULL 00/16] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

	Build status:

[root@jouet ~]# dm
alpine:3.4: FAIL  <--- strerror_r usage needs to be made XSI-compliant, Alpine Linux uses musl libc
centos:5: FAIL    <--- flex snafu, being investigated by Jiri
centos:6: Ok
centos:7: Ok
debian:7: Ok
debian:8: Ok
debian:experimental: Ok
fedora:21: Ok
fedora:22: Ok
fedora:23: Ok
fedora:24: Ok
fedora:rawhide: Ok
mageia:5: Ok
opensuse:13.2: Ok
opensuse:42.1: Ok
ubuntu:12.04.5: Ok
ubuntu:14.04.4: Ok
ubuntu:15.10: Ok
ubuntu:16.04: Ok
[root@jouet ~]#

	These images are now available at: https://hub.docker.com/search/?q=acmel

	And the 'dm' script at: https://fedorapeople.org/~acme/perf/dm

Regards,

- Arnaldo

The following changes since commit dc29bb47a34130459fadd58f05e2acd051a6327d:

  Merge tag 'perf-core-for-mingo-20160630' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-07-01 08:40:39 +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-20160704

for you to fetch changes up to f3d082ceabe53177c98bfa4580a294c2844966e8:

  perf tools: Sync copy of syscall_64.tbl with the kernel (2016-07-04 20:29:40 -0300)

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

Documentation:

- Update android build documentation (Chris Phlipot)

Infrastructure:

- Respect WERROR=0 in libapi and libsubcmd, to allow building on Android (Chris Phlipot)

- Prep work to support SDT events in probe cache (Masami Hiramatsu)

- ELF support for SDT (Hemant Kumar)

- Add feature detection for libelf's elf_getshdrstrndx function (Arnaldo Carvalho de Melo)

- Fix hist accumulation test (Jiri Olsa)

- Unwind callchain fixes (Jiri Olsa)

- Change internal representation of numa nodes obtained from
  perf.data header (Jiri Olsa)

- Sync copy of syscall_64.tbl with the kernel (Arnaldo Carvalho de Melo)

- Add LGPL 2.1 license header to libbpf source files (Wang Nan)

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

----------------------------------------------------------------
Arnaldo Carvalho de Melo (2):
      perf build: Add feature detection for libelf's elf_getshdrstrndx()
      perf tools: Sync copy of syscall_64.tbl with the kernel

Chris Phlipot (3):
      tools lib api: Respect WERROR=0 for build
      tools lib subcmd: Respect WERROR=0 for build
      perf tools: Update android build documentation

Hemant Kumar (1):
      perf sdt: ELF support for SDT

Jiri Olsa (4):
      perf header: Transform nodes string info to struct
      perf tests: Fix hist accumulation test
      perf unwind: Add initialized arg into unwind__prepare_access
      perf unwind: Call unwind__prepare_access for forked thread

Masami Hiramatsu (5):
      perf probe: Use cache entry if possible
      perf probe: Show all cached probes
      perf probe: Remove caches when --cache is given
      perf probe: Add group name support
      perf buildid-cache: Scan and import user SDT events to probe cache

Wang Nan (1):
      tools lib bpf: Add license header

 tools/build/Makefile.feature                      |   1 +
 tools/build/feature/Makefile                      |   4 +
 tools/build/feature/test-all.c                    |   5 +
 tools/build/feature/test-libelf-getshdrstrndx.c   |   8 +
 tools/lib/api/Makefile                            |   8 +-
 tools/lib/bpf/bpf.c                               |  13 ++
 tools/lib/bpf/bpf.h                               |  13 ++
 tools/lib/bpf/libbpf.c                            |  13 ++
 tools/lib/bpf/libbpf.h                            |  13 ++
 tools/lib/subcmd/Makefile                         |   8 +-
 tools/perf/Documentation/android.txt              |  16 +-
 tools/perf/Documentation/perf-buildid-cache.txt   |   3 +
 tools/perf/Documentation/perf-probe.txt           |  19 +-
 tools/perf/arch/x86/entry/syscalls/syscall_64.tbl |   2 +
 tools/perf/builtin-probe.c                        |  31 ++-
 tools/perf/config/Makefile                        |   4 +
 tools/perf/tests/hists_cumulate.c                 |   4 +
 tools/perf/util/build-id.c                        | 138 +++++++++++-
 tools/perf/util/build-id.h                        |   3 +
 tools/perf/util/callchain.h                       |   1 +
 tools/perf/util/env.c                             |   5 +-
 tools/perf/util/env.h                             |  10 +-
 tools/perf/util/header.c                          |  76 +++----
 tools/perf/util/map.c                             |   9 +-
 tools/perf/util/map.h                             |   2 +-
 tools/perf/util/probe-event.c                     |  91 +++++++-
 tools/perf/util/probe-file.c                      | 175 ++++++++++++++-
 tools/perf/util/probe-file.h                      |  10 +-
 tools/perf/util/symbol-elf.c                      | 260 ++++++++++++++++++++++
 tools/perf/util/symbol.h                          |  22 ++
 tools/perf/util/thread.c                          |  39 +++-
 tools/perf/util/unwind-libunwind.c                |  11 +-
 tools/perf/util/unwind.h                          |   9 +-
 tools/perf/util/util.c                            |  19 +-
 34 files changed, 940 insertions(+), 105 deletions(-)
 create mode 100644 tools/build/feature/test-libelf-getshdrstrndx.c

[PATCH 01/16] perf probe: Use cache entry if possible

[Arnaldo Carvalho de Melo]

From: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>

Before analyzing debuginfo, try to find a corresponding entry from probe
cache always. This does not depend on --cache, the --cache enables to
store/update cache, but looking up the cache is always enabled.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/146736019226.27797.16366402884098398857.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/probe-event.c | 65 +++++++++++++++++++++++++++++++++++++++++--
 tools/perf/util/probe-file.c  | 20 ++++++++++++-
 tools/perf/util/probe-file.h  |  5 +++-
 3 files changed, 86 insertions(+), 4 deletions(-)

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 55f41d5e20d1..47b6b8b7206e 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -2474,17 +2474,24 @@ static int probe_trace_event__set_name(struct probe_trace_event *tev,
 	char buf[64];
 	int ret;
 
+	/* If probe_event or trace_event already have the name, reuse it */
 	if (pev->event)
 		event = pev->event;
-	else
+	else if (tev->event)
+		event = tev->event;
+	else {
+		/* Or generate new one from probe point */
 		if (pev->point.function &&
 			(strncmp(pev->point.function, "0x", 2) != 0) &&
 			!strisglob(pev->point.function))
 			event = pev->point.function;
 		else
 			event = tev->point.realname;
+	}
 	if (pev->group)
 		group = pev->group;
+	else if (tev->group)
+		group = tev->group;
 	else
 		group = PERFPROBE_GROUP;
 
@@ -2531,7 +2538,7 @@ static int __add_probe_trace_events(struct perf_probe_event *pev,
 	for (i = 0; i < ntevs; i++) {
 		tev = &tevs[i];
 		/* Skip if the symbol is out of .text or blacklisted */
-		if (!tev->point.symbol)
+		if (!tev->point.symbol && !pev->uprobes)
 			continue;
 
 		/* Set new name for tev (and update namelist) */
@@ -2844,6 +2851,55 @@ errout:
 
 bool __weak arch__prefers_symtab(void) { return false; }
 
+static int find_probe_trace_events_from_cache(struct perf_probe_event *pev,
+					      struct probe_trace_event **tevs)
+{
+	struct probe_cache *cache;
+	struct probe_cache_entry *entry;
+	struct probe_trace_event *tev;
+	struct str_node *node;
+	int ret, i;
+
+	cache = probe_cache__new(pev->target);
+	if (!cache)
+		return 0;
+
+	entry = probe_cache__find(cache, pev);
+	if (!entry) {
+		ret = 0;
+		goto out;
+	}
+
+	ret = strlist__nr_entries(entry->tevlist);
+	if (ret > probe_conf.max_probes) {
+		pr_debug("Too many entries matched in the cache of %s\n",
+			 pev->target ? : "kernel");
+		ret = -E2BIG;
+		goto out;
+	}
+
+	*tevs = zalloc(ret * sizeof(*tev));
+	if (!*tevs) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	i = 0;
+	strlist__for_each_entry(node, entry->tevlist) {
+		tev = &(*tevs)[i++];
+		ret = parse_probe_trace_command(node->s, tev);
+		if (ret < 0)
+			goto out;
+		/* Set the uprobes attribute as same as original */
+		tev->uprobes = pev->uprobes;
+	}
+	ret = i;
+
+out:
+	probe_cache__delete(cache);
+	return ret;
+}
+
 static int convert_to_probe_trace_events(struct perf_probe_event *pev,
 					 struct probe_trace_event **tevs)
 {
@@ -2866,6 +2922,11 @@ static int convert_to_probe_trace_events(struct perf_probe_event *pev,
 	if (ret > 0)
 		return ret;
 
+	/* At first, we need to lookup cache entry */
+	ret = find_probe_trace_events_from_cache(pev, tevs);
+	if (ret > 0)
+		return ret;	/* Found in probe cache */
+
 	if (arch__prefers_symtab() && !perf_probe_event_need_dwarf(pev)) {
 		ret = find_probe_trace_events_from_map(pev, tevs);
 		if (ret > 0)
diff --git a/tools/perf/util/probe-file.c b/tools/perf/util/probe-file.c
index 1c12c1ab19c9..a94ee478178d 100644
--- a/tools/perf/util/probe-file.c
+++ b/tools/perf/util/probe-file.c
@@ -524,7 +524,7 @@ static bool streql(const char *a, const char *b)
 	return !strcmp(a, b);
 }
 
-static struct probe_cache_entry *
+struct probe_cache_entry *
 probe_cache__find(struct probe_cache *pcache, struct perf_probe_event *pev)
 {
 	struct probe_cache_entry *entry = NULL;
@@ -548,6 +548,24 @@ found:
 	return entry;
 }
 
+struct probe_cache_entry *
+probe_cache__find_by_name(struct probe_cache *pcache,
+			  const char *group, const char *event)
+{
+	struct probe_cache_entry *entry = NULL;
+
+	list_for_each_entry(entry, &pcache->entries, node) {
+		/* Hit if same event name or same command-string */
+		if (streql(entry->pev.group, group) &&
+		    streql(entry->pev.event, event))
+			goto found;
+	}
+	entry = NULL;
+
+found:
+	return entry;
+}
+
 int probe_cache__add_entry(struct probe_cache *pcache,
 			   struct perf_probe_event *pev,
 			   struct probe_trace_event *tevs, int ntevs)
diff --git a/tools/perf/util/probe-file.h b/tools/perf/util/probe-file.h
index d872e3df7e59..910aa74953e9 100644
--- a/tools/perf/util/probe-file.h
+++ b/tools/perf/util/probe-file.h
@@ -38,5 +38,8 @@ int probe_cache__add_entry(struct probe_cache *pcache,
 int probe_cache__commit(struct probe_cache *pcache);
 void probe_cache__purge(struct probe_cache *pcache);
 void probe_cache__delete(struct probe_cache *pcache);
-
+struct probe_cache_entry *probe_cache__find(struct probe_cache *pcache,
+					    struct perf_probe_event *pev);
+struct probe_cache_entry *probe_cache__find_by_name(struct probe_cache *pcache,
+					const char *group, const char *event);
 #endif
-- 
2.7.4

[PATCH 02/16] perf probe: Show all cached probes

[Arnaldo Carvalho de Melo]

From: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>

perf probe --list shows all cached probes when --cache is given. Each
caches are shown with on which binary that probed. E.g.:

  -----
  # perf probe --cache vfs_read \$params
  # perf probe --cache -x /lib64/libc-2.17.so getaddrinfo \$params
  # perf probe --cache --list
  [kernel.kallsyms] (1466a0a250b5d0070c6d0f03c5fed30b237970a1):
  vfs_read $params
  /usr/lib64/libc-2.17.so (c31ffe7942bfd77b2fca8f9bd5709d387a86d3bc):
  getaddrinfo $params
  -----

Note that $params requires debuginfo.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/146736020674.27797.13488316780383460180.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/perf-probe.txt |   8 ++-
 tools/perf/builtin-probe.c              |   2 +-
 tools/perf/util/build-id.c              | 108 +++++++++++++++++++++++++++++++-
 tools/perf/util/build-id.h              |   3 +
 tools/perf/util/probe-event.c           |   3 +
 tools/perf/util/probe-file.c            |  66 ++++++++++++++++++-
 tools/perf/util/probe-file.h            |   1 +
 7 files changed, 184 insertions(+), 7 deletions(-)

diff --git a/tools/perf/Documentation/perf-probe.txt b/tools/perf/Documentation/perf-probe.txt
index 947db6fe512c..5a70d45015ea 100644
--- a/tools/perf/Documentation/perf-probe.txt
+++ b/tools/perf/Documentation/perf-probe.txt
@@ -67,7 +67,10 @@ OPTIONS
 
 -l::
 --list[=[GROUP:]EVENT]::
-	List up current probe events. This can also accept filtering patterns of event names.
+	List up current probe events. This can also accept filtering patterns of
+	event names.
+	When this is used with --cache, perf shows all cached probes instead of
+	the live probes.
 
 -L::
 --line=::
@@ -110,8 +113,9 @@ OPTIONS
 	adding and removal operations.
 
 --cache::
-	Cache the probes (with --add option). Any events which successfully added
+	(With --add) Cache the probes. Any events which successfully added
 	are also stored in the cache file.
+	(With --list) Show cached probes.
 
 --max-probes=NUM::
 	Set the maximum number of probe points for an event. Default is 128.
diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index 34262329f405..0bb9084bf6cf 100644
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -44,7 +44,7 @@
 
 #define DEFAULT_VAR_FILTER "!__k???tab_* & !__crc_*"
 #define DEFAULT_FUNC_FILTER "!_*"
-#define DEFAULT_LIST_FILTER "*:*"
+#define DEFAULT_LIST_FILTER "*"
 
 /* Session management structure */
 static struct {
diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index 62b147366d01..1c49620e98b2 100644
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -165,8 +165,7 @@ retry:
 	return NULL;
 }
 
-static char *build_id_cache__linkname(const char *sbuild_id, char *bf,
-				      size_t size)
+char *build_id_cache__linkname(const char *sbuild_id, char *bf, size_t size)
 {
 	char *tmp = bf;
 	int ret = asnprintf(&bf, size, "%s/.build-id/%.2s/%s", buildid_dir,
@@ -176,6 +175,36 @@ static char *build_id_cache__linkname(const char *sbuild_id, char *bf,
 	return bf;
 }
 
+char *build_id_cache__origname(const char *sbuild_id)
+{
+	char *linkname;
+	char buf[PATH_MAX];
+	char *ret = NULL, *p;
+	size_t offs = 5;	/* == strlen("../..") */
+
+	linkname = build_id_cache__linkname(sbuild_id, NULL, 0);
+	if (!linkname)
+		return NULL;
+
+	if (readlink(linkname, buf, PATH_MAX) < 0)
+		goto out;
+	/* The link should be "../..<origpath>/<sbuild_id>" */
+	p = strrchr(buf, '/');	/* Cut off the "/<sbuild_id>" */
+	if (p && (p > buf + offs)) {
+		*p = '\0';
+		if (buf[offs + 1] == '[')
+			offs++;	/*
+				 * This is a DSO name, like [kernel.kallsyms].
+				 * Skip the first '/', since this is not the
+				 * cache of a regular file.
+				 */
+		ret = strdup(buf + offs);	/* Skip "../..[/]" */
+	}
+out:
+	free(linkname);
+	return ret;
+}
+
 static const char *build_id_cache__basename(bool is_kallsyms, bool is_vdso)
 {
 	return is_kallsyms ? "kallsyms" : (is_vdso ? "vdso" : "elf");
@@ -387,6 +416,81 @@ void disable_buildid_cache(void)
 	no_buildid_cache = true;
 }
 
+static bool lsdir_bid_head_filter(const char *name __maybe_unused,
+				  struct dirent *d __maybe_unused)
+{
+	return (strlen(d->d_name) == 2) &&
+		isxdigit(d->d_name[0]) && isxdigit(d->d_name[1]);
+}
+
+static bool lsdir_bid_tail_filter(const char *name __maybe_unused,
+				  struct dirent *d __maybe_unused)
+{
+	int i = 0;
+	while (isxdigit(d->d_name[i]) && i < SBUILD_ID_SIZE - 3)
+		i++;
+	return (i == SBUILD_ID_SIZE - 3) && (d->d_name[i] == '\0');
+}
+
+struct strlist *build_id_cache__list_all(void)
+{
+	struct strlist *toplist, *linklist = NULL, *bidlist;
+	struct str_node *nd, *nd2;
+	char *topdir, *linkdir = NULL;
+	char sbuild_id[SBUILD_ID_SIZE];
+
+	/* Open the top-level directory */
+	if (asprintf(&topdir, "%s/.build-id/", buildid_dir) < 0)
+		return NULL;
+
+	bidlist = strlist__new(NULL, NULL);
+	if (!bidlist)
+		goto out;
+
+	toplist = lsdir(topdir, lsdir_bid_head_filter);
+	if (!toplist) {
+		pr_debug("Error in lsdir(%s): %d\n", topdir, errno);
+		/* If there is no buildid cache, return an empty list */
+		if (errno == ENOENT)
+			goto out;
+		goto err_out;
+	}
+
+	strlist__for_each_entry(nd, toplist) {
+		if (asprintf(&linkdir, "%s/%s", topdir, nd->s) < 0)
+			goto err_out;
+		/* Open the lower-level directory */
+		linklist = lsdir(linkdir, lsdir_bid_tail_filter);
+		if (!linklist) {
+			pr_debug("Error in lsdir(%s): %d\n", linkdir, errno);
+			goto err_out;
+		}
+		strlist__for_each_entry(nd2, linklist) {
+			if (snprintf(sbuild_id, SBUILD_ID_SIZE, "%s%s",
+				     nd->s, nd2->s) != SBUILD_ID_SIZE - 1)
+				goto err_out;
+			if (strlist__add(bidlist, sbuild_id) < 0)
+				goto err_out;
+		}
+		strlist__delete(linklist);
+		zfree(&linkdir);
+	}
+
+out_free:
+	strlist__delete(toplist);
+out:
+	free(topdir);
+
+	return bidlist;
+
+err_out:
+	strlist__delete(linklist);
+	zfree(&linkdir);
+	strlist__delete(bidlist);
+	bidlist = NULL;
+	goto out_free;
+}
+
 char *build_id_cache__cachedir(const char *sbuild_id, const char *name,
 			       bool is_kallsyms, bool is_vdso)
 {
diff --git a/tools/perf/util/build-id.h b/tools/perf/util/build-id.h
index d8c7f2fc6a87..b742e271ea2c 100644
--- a/tools/perf/util/build-id.h
+++ b/tools/perf/util/build-id.h
@@ -30,8 +30,11 @@ bool perf_session__read_build_ids(struct perf_session *session, bool with_hits);
 int perf_session__write_buildid_table(struct perf_session *session, int fd);
 int perf_session__cache_build_ids(struct perf_session *session);
 
+char *build_id_cache__origname(const char *sbuild_id);
+char *build_id_cache__linkname(const char *sbuild_id, char *bf, size_t size);
 char *build_id_cache__cachedir(const char *sbuild_id, const char *name,
 			       bool is_kallsyms, bool is_vdso);
+struct strlist *build_id_cache__list_all(void);
 int build_id_cache__list_build_ids(const char *pathname,
 				   struct strlist **result);
 bool build_id_cache__cached(const char *sbuild_id);
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 47b6b8b7206e..f81b5dd7f1b1 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -2366,6 +2366,9 @@ int show_perf_probe_events(struct strfilter *filter)
 
 	setup_pager();
 
+	if (probe_conf.cache)
+		return probe_cache__show_all_caches(filter);
+
 	ret = init_probe_symbol_maps(false);
 	if (ret < 0)
 		return ret;
diff --git a/tools/perf/util/probe-file.c b/tools/perf/util/probe-file.c
index a94ee478178d..156e3d883965 100644
--- a/tools/perf/util/probe-file.c
+++ b/tools/perf/util/probe-file.c
@@ -367,10 +367,17 @@ static int probe_cache__open(struct probe_cache *pcache, const char *target)
 {
 	char cpath[PATH_MAX];
 	char sbuildid[SBUILD_ID_SIZE];
-	char *dir_name;
+	char *dir_name = NULL;
 	bool is_kallsyms = !target;
 	int ret, fd;
 
+	if (target && build_id_cache__cached(target)) {
+		/* This is a cached buildid */
+		strncpy(sbuildid, target, SBUILD_ID_SIZE);
+		dir_name = build_id_cache__linkname(sbuildid, NULL, 0);
+		goto found;
+	}
+
 	if (target)
 		ret = filename__sprintf_build_id(target, sbuildid);
 	else {
@@ -394,8 +401,11 @@ static int probe_cache__open(struct probe_cache *pcache, const char *target)
 
 	dir_name = build_id_cache__cachedir(sbuildid, target, is_kallsyms,
 					    false);
-	if (!dir_name)
+found:
+	if (!dir_name) {
+		pr_debug("Failed to get cache from %s\n", target);
 		return -ENOMEM;
+	}
 
 	snprintf(cpath, PATH_MAX, "%s/probes", dir_name);
 	fd = open(cpath, O_CREAT | O_RDWR, 0644);
@@ -673,3 +683,55 @@ int probe_cache__commit(struct probe_cache *pcache)
 out:
 	return ret;
 }
+
+static int probe_cache__show_entries(struct probe_cache *pcache,
+				     struct strfilter *filter)
+{
+	struct probe_cache_entry *entry;
+	char buf[128], *ptr;
+
+	list_for_each_entry(entry, &pcache->entries, node) {
+		if (entry->pev.event) {
+			ptr = buf;
+			snprintf(buf, 128, "%s:%s",
+				 entry->pev.group, entry->pev.event);
+		} else
+			ptr = entry->spev;
+		if (strfilter__compare(filter, ptr))
+			printf("%s\n", entry->spev);
+	}
+	return 0;
+}
+
+/* Show all cached probes */
+int probe_cache__show_all_caches(struct strfilter *filter)
+{
+	struct probe_cache *pcache;
+	struct strlist *bidlist;
+	struct str_node *nd;
+	char *buf = strfilter__string(filter);
+
+	pr_debug("list cache with filter: %s\n", buf);
+	free(buf);
+
+	bidlist = build_id_cache__list_all();
+	if (!bidlist) {
+		pr_debug("Failed to get buildids: %d\n", errno);
+		return -EINVAL;
+	}
+	strlist__for_each_entry(nd, bidlist) {
+		pcache = probe_cache__new(nd->s);
+		if (!pcache)
+			continue;
+		if (!list_empty(&pcache->entries)) {
+			buf = build_id_cache__origname(nd->s);
+			printf("%s (%s):\n", buf, nd->s);
+			free(buf);
+			probe_cache__show_entries(pcache, filter);
+		}
+		probe_cache__delete(pcache);
+	}
+	strlist__delete(bidlist);
+
+	return 0;
+}
diff --git a/tools/perf/util/probe-file.h b/tools/perf/util/probe-file.h
index 910aa74953e9..0009b8a65a5c 100644
--- a/tools/perf/util/probe-file.h
+++ b/tools/perf/util/probe-file.h
@@ -42,4 +42,5 @@ struct probe_cache_entry *probe_cache__find(struct probe_cache *pcache,
 					    struct perf_probe_event *pev);
 struct probe_cache_entry *probe_cache__find_by_name(struct probe_cache *pcache,
 					const char *group, const char *event);
+int probe_cache__show_all_caches(struct strfilter *filter);
 #endif
-- 
2.7.4

[PATCH 03/16] perf probe: Remove caches when --cache is given

[Arnaldo Carvalho de Melo]

From: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>

'perf probe --del' removes caches when '--cache' is given.  Note that
the delete pattern is not the same as for normal events.

If you cached probes with event name, --del "eventname" works as
expected. However, if you skipped it, the cached probes doesn't have
actual event name. In that case --del "probe-desc" is required (wildcard
is acceptable).  For example a cache entry has the probe-desc "vfs_read
$params", you can remove it with --del 'vfs_read*'.

  -----
  # perf probe --cache --list
  /[kernel.kallsyms] (1466a0a250b5d0070c6d0f03c5fed30b237970a1):
  vfs_read $params
  /usr/lib64/libc-2.17.so (c31ffe7942bfd77b2fca8f9bd5709d387a86d3bc):
  getaddrinfo $params

  # perf probe --cache --del vfs_read\*
  Removed cached event: probe:vfs_read

  # perf probe --cache --list
  /[kernel.kallsyms] (1466a0a250b5d0070c6d0f03c5fed30b237970a1):
  /usr/lib64/libc-2.17.so (c31ffe7942bfd77b2fca8f9bd5709d387a86d3bc):
  getaddrinfo $params
  -----

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/146736021651.27797.10250879847070772920.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/perf-probe.txt |  1 +
 tools/perf/builtin-probe.c              | 29 ++++++++++++++++++++++++++
 tools/perf/util/probe-file.c            | 36 +++++++++++++++++++++++++--------
 tools/perf/util/probe-file.h            |  2 ++
 4 files changed, 60 insertions(+), 8 deletions(-)

diff --git a/tools/perf/Documentation/perf-probe.txt b/tools/perf/Documentation/perf-probe.txt
index 5a70d45015ea..8d091734d02c 100644
--- a/tools/perf/Documentation/perf-probe.txt
+++ b/tools/perf/Documentation/perf-probe.txt
@@ -116,6 +116,7 @@ OPTIONS
 	(With --add) Cache the probes. Any events which successfully added
 	are also stored in the cache file.
 	(With --list) Show cached probes.
+	(With --del) Remove cached probes.
 
 --max-probes=NUM::
 	Set the maximum number of probe points for an event. Default is 128.
diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index 0bb9084bf6cf..a1a5cd1b8d60 100644
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -363,6 +363,32 @@ out_cleanup:
 	return ret;
 }
 
+static int del_perf_probe_caches(struct strfilter *filter)
+{
+	struct probe_cache *cache;
+	struct strlist *bidlist;
+	struct str_node *nd;
+	int ret;
+
+	bidlist = build_id_cache__list_all();
+	if (!bidlist) {
+		ret = -errno;
+		pr_debug("Failed to get buildids: %d\n", ret);
+		return ret ?: -ENOMEM;
+	}
+
+	strlist__for_each_entry(nd, bidlist) {
+		cache = probe_cache__new(nd->s);
+		if (!cache)
+			continue;
+		if (probe_cache__filter_purge(cache, filter) < 0 ||
+		    probe_cache__commit(cache) < 0)
+			pr_warning("Failed to remove entries for %s\n", nd->s);
+		probe_cache__delete(cache);
+	}
+	return 0;
+}
+
 static int perf_del_probe_events(struct strfilter *filter)
 {
 	int ret, ret2, ufd = -1, kfd = -1;
@@ -375,6 +401,9 @@ static int perf_del_probe_events(struct strfilter *filter)
 
 	pr_debug("Delete filter: \'%s\'\n", str);
 
+	if (probe_conf.cache)
+		return del_perf_probe_caches(filter);
+
 	/* Get current event names */
 	ret = probe_file__open_both(&kfd, &ufd, PF_FL_RW);
 	if (ret < 0)
diff --git a/tools/perf/util/probe-file.c b/tools/perf/util/probe-file.c
index 156e3d883965..6cb6ec03c1fe 100644
--- a/tools/perf/util/probe-file.c
+++ b/tools/perf/util/probe-file.c
@@ -684,20 +684,40 @@ out:
 	return ret;
 }
 
+static bool probe_cache_entry__compare(struct probe_cache_entry *entry,
+				       struct strfilter *filter)
+{
+	char buf[128], *ptr = entry->spev;
+
+	if (entry->pev.event) {
+		snprintf(buf, 128, "%s:%s", entry->pev.group, entry->pev.event);
+		ptr = buf;
+	}
+	return strfilter__compare(filter, ptr);
+}
+
+int probe_cache__filter_purge(struct probe_cache *pcache,
+			      struct strfilter *filter)
+{
+	struct probe_cache_entry *entry, *tmp;
+
+	list_for_each_entry_safe(entry, tmp, &pcache->entries, node) {
+		if (probe_cache_entry__compare(entry, filter)) {
+			pr_info("Removed cached event: %s\n", entry->spev);
+			list_del_init(&entry->node);
+			probe_cache_entry__delete(entry);
+		}
+	}
+	return 0;
+}
+
 static int probe_cache__show_entries(struct probe_cache *pcache,
 				     struct strfilter *filter)
 {
 	struct probe_cache_entry *entry;
-	char buf[128], *ptr;
 
 	list_for_each_entry(entry, &pcache->entries, node) {
-		if (entry->pev.event) {
-			ptr = buf;
-			snprintf(buf, 128, "%s:%s",
-				 entry->pev.group, entry->pev.event);
-		} else
-			ptr = entry->spev;
-		if (strfilter__compare(filter, ptr))
+		if (probe_cache_entry__compare(entry, filter))
 			printf("%s\n", entry->spev);
 	}
 	return 0;
diff --git a/tools/perf/util/probe-file.h b/tools/perf/util/probe-file.h
index 0009b8a65a5c..0ed1fc563b77 100644
--- a/tools/perf/util/probe-file.h
+++ b/tools/perf/util/probe-file.h
@@ -38,6 +38,8 @@ int probe_cache__add_entry(struct probe_cache *pcache,
 int probe_cache__commit(struct probe_cache *pcache);
 void probe_cache__purge(struct probe_cache *pcache);
 void probe_cache__delete(struct probe_cache *pcache);
+int probe_cache__filter_purge(struct probe_cache *pcache,
+			      struct strfilter *filter);
 struct probe_cache_entry *probe_cache__find(struct probe_cache *pcache,
 					    struct perf_probe_event *pev);
 struct probe_cache_entry *probe_cache__find_by_name(struct probe_cache *pcache,
-- 
2.7.4

[PATCH 04/16] perf build: Add feature detection for libelf's elf_getshdrstrndx()

[Arnaldo Carvalho de Melo]

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

That appeared after 0.140, and will be used in the SDT code, so, to
avoid bisection break on older systems, add a feature detection and
provide a stub with a pr_debug() to keep it building.

Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-80y0eldgweorqnwha9rvfxjr@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/build/Makefile.feature                    | 1 +
 tools/build/feature/Makefile                    | 4 ++++
 tools/build/feature/test-all.c                  | 5 +++++
 tools/build/feature/test-libelf-getshdrstrndx.c | 8 ++++++++
 tools/perf/config/Makefile                      | 4 ++++
 tools/perf/util/symbol-elf.c                    | 8 ++++++++
 6 files changed, 30 insertions(+)
 create mode 100644 tools/build/feature/test-libelf-getshdrstrndx.c

diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
index 57c8f98874e8..3dd529bb0604 100644
--- a/tools/build/Makefile.feature
+++ b/tools/build/Makefile.feature
@@ -40,6 +40,7 @@ FEATURE_TESTS_BASIC :=			\
 	libbfd				\
 	libelf				\
 	libelf-getphdrnum		\
+	libelf-getshdrstrndx		\
 	libelf-mmap			\
 	libnuma				\
 	numa_num_possible_cpus		\
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index 3d88f09e188b..674711629ef0 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -17,6 +17,7 @@ FILES=					\
 	test-cplus-demangle.bin		\
 	test-libelf.bin			\
 	test-libelf-getphdrnum.bin	\
+	test-libelf-getshdrstrndx.bin	\
 	test-libelf-mmap.bin		\
 	test-libnuma.bin		\
 	test-numa_num_possible_cpus.bin	\
@@ -98,6 +99,9 @@ $(OUTPUT)test-libelf-mmap.bin:
 $(OUTPUT)test-libelf-getphdrnum.bin:
 	$(BUILD) -lelf
 
+$(OUTPUT)test-libelf-getshdrstrndx.bin:
+	$(BUILD) -lelf
+
 $(OUTPUT)test-libnuma.bin:
 	$(BUILD) -lnuma
 
diff --git a/tools/build/feature/test-all.c b/tools/build/feature/test-all.c
index a282e8cb84f3..7433cca33306 100644
--- a/tools/build/feature/test-all.c
+++ b/tools/build/feature/test-all.c
@@ -49,6 +49,10 @@
 # include "test-libelf-getphdrnum.c"
 #undef main
 
+#define main main_test_libelf_getshdrstrndx
+# include "test-libelf-getshdrstrndx.c"
+#undef main
+
 #define main main_test_libunwind
 # include "test-libunwind.c"
 #undef main
@@ -149,6 +153,7 @@ int main(int argc, char *argv[])
 	main_test_dwarf();
 	main_test_dwarf_getlocations();
 	main_test_libelf_getphdrnum();
+	main_test_libelf_getshdrstrndx();
 	main_test_libunwind();
 	main_test_libaudit();
 	main_test_libslang();
diff --git a/tools/build/feature/test-libelf-getshdrstrndx.c b/tools/build/feature/test-libelf-getshdrstrndx.c
new file mode 100644
index 000000000000..f0c3b47cce28
--- /dev/null
+++ b/tools/build/feature/test-libelf-getshdrstrndx.c
@@ -0,0 +1,8 @@
+#include <libelf.h>
+
+int main(void)
+{
+	size_t dst;
+
+	return elf_getshdrstrndx(0, &dst);
+}
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index bf1a0a0dd0ad..c7e269a7ca37 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -309,6 +309,10 @@ ifndef NO_LIBELF
     CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
   endif
 
+  ifeq ($(feature-libelf-getshdrstrndx), 1)
+    CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
+  endif
+
   ifndef NO_DWARF
     ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
       msg := $(warning DWARF register mappings have not been defined for architecture $(ARCH), DWARF support disabled);
diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index 87a297dd8901..b222552c7159 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -54,6 +54,14 @@ static int elf_getphdrnum(Elf *elf, size_t *dst)
 }
 #endif
 
+#ifndef HAVE_ELF_GETSHDRSTRNDX_SUPPORT
+static int elf_getshdrstrndx(Elf *elf __maybe_unused, size_t *dst __maybe_unused)
+{
+	pr_err("%s: update your libelf to > 0.140, this one lacks elf_getshdrstrndx().\n", __func__);
+	return -1;
+}
+#endif
+
 #ifndef NT_GNU_BUILD_ID
 #define NT_GNU_BUILD_ID 3
 #endif
-- 
2.7.4

[PATCH 05/16] perf sdt: ELF support for SDT

[Arnaldo Carvalho de Melo]

From: Hemant Kumar <hemant@linux.vnet.ibm.com>

This patch serves the initial support to identify and list SDT events in
binaries.  When programs containing SDT markers are compiled, gcc with
the help of assembler directives identifies them and places them in the
section ".note.stapsdt".

To find these markers from the binaries, one needs to traverse through
this section and parse the relevant details like the name, type and
location of the marker. Also, the original location could be skewed due
to the effect of prelinking. If that is the case, the locations need to
be adjusted.

The functions in this patch open a given ELF, find out the SDT section,
parse the relevant details, adjust the location (if necessary) and
populate them in a list.

A typical note entry in ".note.stapsdt" section is as follows :

                                 |--nhdr.n_namesz--|
                ------------------------------------
                |      nhdr      |     "stapsdt"   |
        -----   |----------------------------------|
         |      |  <location>       <base_address> |
         |      |  <semaphore>                     |
nhdr.n_descsize |  "provider_name"   "note_name"   |
         |      |   <args>                         |
        -----   |----------------------------------|
                |      nhdr      |     "stapsdt"   |
                |...

The above shows an excerpt from the section ".note.stapsdt".  'nhdr' is
a structure which has the note name size (n_namesz), note description
size (n_desc_sz) and note type (n_type).

So, in order to parse the note note info, we need nhdr to tell us where
to start from.  As can be seen from <sys/sdt.h>, the name of the SDT
notes given is "stapsdt".  But this is not the identifier of the note.

After that, we go to description of the note to find out its location, the
address of the ".stapsdt.base" section and the semaphore address.
Then, we find the provider name and the SDT marker name and then follow the
arguments.

Signed-off-by: Hemant Kumar <hemant@linux.vnet.ibm.com>
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/146736022628.27797.1201368329092908163.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/symbol-elf.c | 252 +++++++++++++++++++++++++++++++++++++++++++
 tools/perf/util/symbol.h     |  22 ++++
 2 files changed, 274 insertions(+)

diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index b222552c7159..6f15b92cbf70 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -1789,6 +1789,258 @@ void kcore_extract__delete(struct kcore_extract *kce)
 	unlink(kce->extract_filename);
 }
 
+/**
+ * populate_sdt_note : Parse raw data and identify SDT note
+ * @elf: elf of the opened file
+ * @data: raw data of a section with description offset applied
+ * @len: note description size
+ * @type: type of the note
+ * @sdt_notes: List to add the SDT note
+ *
+ * Responsible for parsing the @data in section .note.stapsdt in @elf and
+ * if its an SDT note, it appends to @sdt_notes list.
+ */
+static int populate_sdt_note(Elf **elf, const char *data, size_t len,
+			     struct list_head *sdt_notes)
+{
+	const char *provider, *name;
+	struct sdt_note *tmp = NULL;
+	GElf_Ehdr ehdr;
+	GElf_Addr base_off = 0;
+	GElf_Shdr shdr;
+	int ret = -EINVAL;
+
+	union {
+		Elf64_Addr a64[NR_ADDR];
+		Elf32_Addr a32[NR_ADDR];
+	} buf;
+
+	Elf_Data dst = {
+		.d_buf = &buf, .d_type = ELF_T_ADDR, .d_version = EV_CURRENT,
+		.d_size = gelf_fsize((*elf), ELF_T_ADDR, NR_ADDR, EV_CURRENT),
+		.d_off = 0, .d_align = 0
+	};
+	Elf_Data src = {
+		.d_buf = (void *) data, .d_type = ELF_T_ADDR,
+		.d_version = EV_CURRENT, .d_size = dst.d_size, .d_off = 0,
+		.d_align = 0
+	};
+
+	tmp = (struct sdt_note *)calloc(1, sizeof(struct sdt_note));
+	if (!tmp) {
+		ret = -ENOMEM;
+		goto out_err;
+	}
+
+	INIT_LIST_HEAD(&tmp->note_list);
+
+	if (len < dst.d_size + 3)
+		goto out_free_note;
+
+	/* Translation from file representation to memory representation */
+	if (gelf_xlatetom(*elf, &dst, &src,
+			  elf_getident(*elf, NULL)[EI_DATA]) == NULL) {
+		pr_err("gelf_xlatetom : %s\n", elf_errmsg(-1));
+		goto out_free_note;
+	}
+
+	/* Populate the fields of sdt_note */
+	provider = data + dst.d_size;
+
+	name = (const char *)memchr(provider, '\0', data + len - provider);
+	if (name++ == NULL)
+		goto out_free_note;
+
+	tmp->provider = strdup(provider);
+	if (!tmp->provider) {
+		ret = -ENOMEM;
+		goto out_free_note;
+	}
+	tmp->name = strdup(name);
+	if (!tmp->name) {
+		ret = -ENOMEM;
+		goto out_free_prov;
+	}
+
+	if (gelf_getclass(*elf) == ELFCLASS32) {
+		memcpy(&tmp->addr, &buf, 3 * sizeof(Elf32_Addr));
+		tmp->bit32 = true;
+	} else {
+		memcpy(&tmp->addr, &buf, 3 * sizeof(Elf64_Addr));
+		tmp->bit32 = false;
+	}
+
+	if (!gelf_getehdr(*elf, &ehdr)) {
+		pr_debug("%s : cannot get elf header.\n", __func__);
+		ret = -EBADF;
+		goto out_free_name;
+	}
+
+	/* Adjust the prelink effect :
+	 * Find out the .stapsdt.base section.
+	 * This scn will help us to handle prelinking (if present).
+	 * Compare the retrieved file offset of the base section with the
+	 * base address in the description of the SDT note. If its different,
+	 * then accordingly, adjust the note location.
+	 */
+	if (elf_section_by_name(*elf, &ehdr, &shdr, SDT_BASE_SCN, NULL)) {
+		base_off = shdr.sh_offset;
+		if (base_off) {
+			if (tmp->bit32)
+				tmp->addr.a32[0] = tmp->addr.a32[0] + base_off -
+					tmp->addr.a32[1];
+			else
+				tmp->addr.a64[0] = tmp->addr.a64[0] + base_off -
+					tmp->addr.a64[1];
+		}
+	}
+
+	list_add_tail(&tmp->note_list, sdt_notes);
+	return 0;
+
+out_free_name:
+	free(tmp->name);
+out_free_prov:
+	free(tmp->provider);
+out_free_note:
+	free(tmp);
+out_err:
+	return ret;
+}
+
+/**
+ * construct_sdt_notes_list : constructs a list of SDT notes
+ * @elf : elf to look into
+ * @sdt_notes : empty list_head
+ *
+ * Scans the sections in 'elf' for the section
+ * .note.stapsdt. It, then calls populate_sdt_note to find
+ * out the SDT events and populates the 'sdt_notes'.
+ */
+static int construct_sdt_notes_list(Elf *elf, struct list_head *sdt_notes)
+{
+	GElf_Ehdr ehdr;
+	Elf_Scn *scn = NULL;
+	Elf_Data *data;
+	GElf_Shdr shdr;
+	size_t shstrndx, next;
+	GElf_Nhdr nhdr;
+	size_t name_off, desc_off, offset;
+	int ret = 0;
+
+	if (gelf_getehdr(elf, &ehdr) == NULL) {
+		ret = -EBADF;
+		goto out_ret;
+	}
+	if (elf_getshdrstrndx(elf, &shstrndx) != 0) {
+		ret = -EBADF;
+		goto out_ret;
+	}
+
+	/* Look for the required section */
+	scn = elf_section_by_name(elf, &ehdr, &shdr, SDT_NOTE_SCN, NULL);
+	if (!scn) {
+		ret = -ENOENT;
+		goto out_ret;
+	}
+
+	if ((shdr.sh_type != SHT_NOTE) || (shdr.sh_flags & SHF_ALLOC)) {
+		ret = -ENOENT;
+		goto out_ret;
+	}
+
+	data = elf_getdata(scn, NULL);
+
+	/* Get the SDT notes */
+	for (offset = 0; (next = gelf_getnote(data, offset, &nhdr, &name_off,
+					      &desc_off)) > 0; offset = next) {
+		if (nhdr.n_namesz == sizeof(SDT_NOTE_NAME) &&
+		    !memcmp(data->d_buf + name_off, SDT_NOTE_NAME,
+			    sizeof(SDT_NOTE_NAME))) {
+			/* Check the type of the note */
+			if (nhdr.n_type != SDT_NOTE_TYPE)
+				goto out_ret;
+
+			ret = populate_sdt_note(&elf, ((data->d_buf) + desc_off),
+						nhdr.n_descsz, sdt_notes);
+			if (ret < 0)
+				goto out_ret;
+		}
+	}
+	if (list_empty(sdt_notes))
+		ret = -ENOENT;
+
+out_ret:
+	return ret;
+}
+
+/**
+ * get_sdt_note_list : Wrapper to construct a list of sdt notes
+ * @head : empty list_head
+ * @target : file to find SDT notes from
+ *
+ * This opens the file, initializes
+ * the ELF and then calls construct_sdt_notes_list.
+ */
+int get_sdt_note_list(struct list_head *head, const char *target)
+{
+	Elf *elf;
+	int fd, ret;
+
+	fd = open(target, O_RDONLY);
+	if (fd < 0)
+		return -EBADF;
+
+	elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL);
+	if (!elf) {
+		ret = -EBADF;
+		goto out_close;
+	}
+	ret = construct_sdt_notes_list(elf, head);
+	elf_end(elf);
+out_close:
+	close(fd);
+	return ret;
+}
+
+/**
+ * cleanup_sdt_note_list : free the sdt notes' list
+ * @sdt_notes: sdt notes' list
+ *
+ * Free up the SDT notes in @sdt_notes.
+ * Returns the number of SDT notes free'd.
+ */
+int cleanup_sdt_note_list(struct list_head *sdt_notes)
+{
+	struct sdt_note *tmp, *pos;
+	int nr_free = 0;
+
+	list_for_each_entry_safe(pos, tmp, sdt_notes, note_list) {
+		list_del(&pos->note_list);
+		free(pos->name);
+		free(pos->provider);
+		free(pos);
+		nr_free++;
+	}
+	return nr_free;
+}
+
+/**
+ * sdt_notes__get_count: Counts the number of sdt events
+ * @start: list_head to sdt_notes list
+ *
+ * Returns the number of SDT notes in a list
+ */
+int sdt_notes__get_count(struct list_head *start)
+{
+	struct sdt_note *sdt_ptr;
+	int count = 0;
+
+	list_for_each_entry(sdt_ptr, start, note_list)
+		count++;
+	return count;
+}
+
 void symbol__elf_init(void)
 {
 	elf_version(EV_CURRENT);
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index b10d558a8803..699f7cbcfe72 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -342,4 +342,26 @@ void arch__sym_update(struct symbol *s, GElf_Sym *sym);
 
 int arch__choose_best_symbol(struct symbol *syma, struct symbol *symb);
 
+/* structure containing an SDT note's info */
+struct sdt_note {
+	char *name;			/* name of the note*/
+	char *provider;			/* provider name */
+	bool bit32;			/* whether the location is 32 bits? */
+	union {				/* location, base and semaphore addrs */
+		Elf64_Addr a64[3];
+		Elf32_Addr a32[3];
+	} addr;
+	struct list_head note_list;	/* SDT notes' list */
+};
+
+int get_sdt_note_list(struct list_head *head, const char *target);
+int cleanup_sdt_note_list(struct list_head *sdt_notes);
+int sdt_notes__get_count(struct list_head *start);
+
+#define SDT_BASE_SCN ".stapsdt.base"
+#define SDT_NOTE_SCN  ".note.stapsdt"
+#define SDT_NOTE_TYPE 3
+#define SDT_NOTE_NAME "stapsdt"
+#define NR_ADDR 3
+
 #endif /* __PERF_SYMBOL */
-- 
2.7.4

[PATCH 06/16] perf probe: Add group name support

[Arnaldo Carvalho de Melo]

From: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>

Allow user to set group name for adding new event.  Note that user must
ensure that the group name doesn't conflict with existing group name
carefully.

E.g. Existing group name can conflict with other events.  Especially,
using the group name reserved for kernel modules can hide kernel
embedded events when loading modules.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/146736024091.27797.9471545190066268995.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/perf-probe.txt | 10 ++++++----
 tools/perf/util/probe-event.c           | 23 ++++++++++++++---------
 2 files changed, 20 insertions(+), 13 deletions(-)

diff --git a/tools/perf/Documentation/perf-probe.txt b/tools/perf/Documentation/perf-probe.txt
index 8d091734d02c..7a258e953252 100644
--- a/tools/perf/Documentation/perf-probe.txt
+++ b/tools/perf/Documentation/perf-probe.txt
@@ -143,16 +143,18 @@ PROBE SYNTAX
 Probe points are defined by following syntax.
 
     1) Define event based on function name
-     [EVENT=]FUNC[@SRC][:RLN|+OFFS|%return|;PTN] [ARG ...]
+     [[GROUP:]EVENT=]FUNC[@SRC][:RLN|+OFFS|%return|;PTN] [ARG ...]
 
     2) Define event based on source file with line number
-     [EVENT=]SRC:ALN [ARG ...]
+     [[GROUP:]EVENT=]SRC:ALN [ARG ...]
 
     3) Define event based on source file with lazy pattern
-     [EVENT=]SRC;PTN [ARG ...]
+     [[GROUP:]EVENT=]SRC;PTN [ARG ...]
 
 
-'EVENT' specifies the name of new event, if omitted, it will be set the name of the probed function. Currently, event group name is set as 'probe'.
+'EVENT' specifies the name of new event, if omitted, it will be set the name of the probed function. You can also specify a group name by 'GROUP', if omitted, set 'probe' is used for kprobe and 'probe_<bin>' is used for uprobe.
+Note that using existing group name can conflict with other events. Especially, using the group name reserved for kernel modules can hide embedded events in the
+modules.
 'FUNC' specifies a probed function name, and it may have one of the following options; '+OFFS' is the offset from function entry address in bytes, ':RLN' is the relative-line number from function entry line, and '%return' means that it probes function return. And ';PTN' means lazy matching pattern (see LAZY MATCHING). Note that ';PTN' must be the end of the probe point definition.  In addition, '@SRC' specifies a source file which has that function.
 It is also possible to specify a probe point by the source line number or lazy matching by using 'SRC:ALN' or 'SRC;PTN' syntax, where 'SRC' is the source file path, ':ALN' is the line number and ';PTN' is the lazy matching pattern.
 'ARG' specifies the arguments of this probe point, (see PROBE ARGUMENT).
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index f81b5dd7f1b1..0201f661ccb8 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -1206,10 +1206,8 @@ static int parse_perf_probe_point(char *arg, struct perf_probe_event *pev)
 	bool file_spec = false;
 	/*
 	 * <Syntax>
-	 * perf probe [EVENT=]SRC[:LN|;PTN]
-	 * perf probe [EVENT=]FUNC[@SRC][+OFFS|%return|:LN|;PAT]
-	 *
-	 * TODO:Group name support
+	 * perf probe [GRP:][EVENT=]SRC[:LN|;PTN]
+	 * perf probe [GRP:][EVENT=]FUNC[@SRC][+OFFS|%return|:LN|;PAT]
 	 */
 	if (!arg)
 		return -EINVAL;
@@ -1218,11 +1216,19 @@ static int parse_perf_probe_point(char *arg, struct perf_probe_event *pev)
 	if (ptr && *ptr == '=') {	/* Event name */
 		*ptr = '\0';
 		tmp = ptr + 1;
-		if (strchr(arg, ':')) {
-			semantic_error("Group name is not supported yet.\n");
-			return -ENOTSUP;
-		}
+		ptr = strchr(arg, ':');
+		if (ptr) {
+			*ptr = '\0';
+			if (!is_c_func_name(arg))
+				goto not_fname;
+			pev->group = strdup(arg);
+			if (!pev->group)
+				return -ENOMEM;
+			arg = ptr + 1;
+		} else
+			pev->group = NULL;
 		if (!is_c_func_name(arg)) {
+not_fname:
 			semantic_error("%s is bad for event name -it must "
 				       "follow C symbol-naming rule.\n", arg);
 			return -EINVAL;
@@ -1230,7 +1236,6 @@ static int parse_perf_probe_point(char *arg, struct perf_probe_event *pev)
 		pev->event = strdup(arg);
 		if (pev->event == NULL)
 			return -ENOMEM;
-		pev->group = NULL;
 		arg = tmp;
 	}
 
-- 
2.7.4

[PATCH 07/16] perf buildid-cache: Scan and import user SDT events to probe cache

[Arnaldo Carvalho de Melo]

From: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>

perf buildid-cache --add <binary> scans given binary and add
the SDT events to probe cache. "sdt_" prefix is appended for
all SDT providers to avoid event-name clash with other pre-defined
events. It is possible to use the cached SDT events as other cached
events, via perf probe --add "sdt_<provider>:<event>=<event>".

e.g.
  ----
  # perf buildid-cache --add /lib/libc-2.17.so
  # perf probe --cache --list | head -n 5
  /usr/lib/libc-2.17.so (a6fb821bdf53660eb2c29f778757aef294d3d392):
  sdt_libc:setjmp=setjmp
  sdt_libc:longjmp=longjmp
  sdt_libc:longjmp_target=longjmp_target
  sdt_libc:memory_heap_new=memory_heap_new
  # perf probe -x /usr/lib/libc-2.17.so \
    -a sdt_libc:memory_heap_new=memory_heap_new
  Added new event:
    sdt_libc:memory_heap_new (on memory_heap_new
   in /usr/lib/libc-2.17.so)

  You can now use it in all perf tools, such as:

          perf record -e sdt_libc:memory_heap_new -aR sleep 1

  # perf probe -l
    sdt_libc:memory_heap_new (on new_heap+183 in /usr/lib/libc-2.17.so)
  ----

Note that SDT event entries in probe-cache file is somewhat different
from normal cached events. Normal one starts with "#", but SDTs are
starting with "%".

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/146736025058.27797.13043265488541434502.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/perf-buildid-cache.txt |  3 ++
 tools/perf/util/build-id.c                      | 30 +++++++++++
 tools/perf/util/probe-file.c                    | 69 +++++++++++++++++++++++--
 tools/perf/util/probe-file.h                    |  2 +
 4 files changed, 101 insertions(+), 3 deletions(-)

diff --git a/tools/perf/Documentation/perf-buildid-cache.txt b/tools/perf/Documentation/perf-buildid-cache.txt
index dd07b55f58d8..058064db39d2 100644
--- a/tools/perf/Documentation/perf-buildid-cache.txt
+++ b/tools/perf/Documentation/perf-buildid-cache.txt
@@ -15,6 +15,9 @@ DESCRIPTION
 This command manages the build-id cache. It can add, remove, update and purge
 files to/from the cache. In the future it should as well set upper limits for
 the space used by the cache, etc.
+This also scans the target binary for SDT (Statically Defined Tracing) and
+record it along with the buildid-cache, which will be used by perf-probe.
+For more details, see linkperf:perf-probe[1].
 
 OPTIONS
 -------
diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index 1c49620e98b2..e1a16408da9c 100644
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -17,6 +17,7 @@
 #include "tool.h"
 #include "header.h"
 #include "vdso.h"
+#include "probe-file.h"
 
 
 static bool no_buildid_cache;
@@ -532,6 +533,30 @@ int build_id_cache__list_build_ids(const char *pathname,
 	return ret;
 }
 
+#ifdef HAVE_LIBELF_SUPPORT
+static int build_id_cache__add_sdt_cache(const char *sbuild_id,
+					  const char *realname)
+{
+	struct probe_cache *cache;
+	int ret;
+
+	cache = probe_cache__new(sbuild_id);
+	if (!cache)
+		return -1;
+
+	ret = probe_cache__scan_sdt(cache, realname);
+	if (ret >= 0) {
+		pr_debug("Found %d SDTs in %s\n", ret, realname);
+		if (probe_cache__commit(cache) < 0)
+			ret = -1;
+	}
+	probe_cache__delete(cache);
+	return ret;
+}
+#else
+#define build_id_cache__add_sdt_cache(sbuild_id, realname) (0)
+#endif
+
 int build_id_cache__add_s(const char *sbuild_id, const char *name,
 			  bool is_kallsyms, bool is_vdso)
 {
@@ -589,6 +614,11 @@ int build_id_cache__add_s(const char *sbuild_id, const char *name,
 
 	if (symlink(tmp, linkname) == 0)
 		err = 0;
+
+	/* Update SDT cache : error is just warned */
+	if (build_id_cache__add_sdt_cache(sbuild_id, realname) < 0)
+		pr_debug("Failed to update/scan SDT cache for %s\n", realname);
+
 out_free:
 	if (!is_kallsyms)
 		free(realname);
diff --git a/tools/perf/util/probe-file.c b/tools/perf/util/probe-file.c
index 6cb6ec03c1fe..5b563b2e8b1d 100644
--- a/tools/perf/util/probe-file.c
+++ b/tools/perf/util/probe-file.c
@@ -434,12 +434,15 @@ static int probe_cache__load(struct probe_cache *pcache)
 		p = strchr(buf, '\n');
 		if (p)
 			*p = '\0';
-		if (buf[0] == '#') {	/* #perf_probe_event */
+		/* #perf_probe_event or %sdt_event */
+		if (buf[0] == '#' || buf[0] == '%') {
 			entry = probe_cache_entry__new(NULL);
 			if (!entry) {
 				ret = -ENOMEM;
 				goto out;
 			}
+			if (buf[0] == '%')
+				entry->sdt = true;
 			entry->spev = strdup(buf + 1);
 			if (entry->spev)
 				ret = parse_perf_probe_command(buf + 1,
@@ -621,19 +624,79 @@ out_err:
 	return ret;
 }
 
+static unsigned long long sdt_note__get_addr(struct sdt_note *note)
+{
+	return note->bit32 ? (unsigned long long)note->addr.a32[0]
+		 : (unsigned long long)note->addr.a64[0];
+}
+
+int probe_cache__scan_sdt(struct probe_cache *pcache, const char *pathname)
+{
+	struct probe_cache_entry *entry = NULL;
+	struct list_head sdtlist;
+	struct sdt_note *note;
+	char *buf;
+	char sdtgrp[64];
+	int ret;
+
+	INIT_LIST_HEAD(&sdtlist);
+	ret = get_sdt_note_list(&sdtlist, pathname);
+	if (ret < 0) {
+		pr_debug("Failed to get sdt note: %d\n", ret);
+		return ret;
+	}
+	list_for_each_entry(note, &sdtlist, note_list) {
+		ret = snprintf(sdtgrp, 64, "sdt_%s", note->provider);
+		if (ret < 0)
+			break;
+		/* Try to find same-name entry */
+		entry = probe_cache__find_by_name(pcache, sdtgrp, note->name);
+		if (!entry) {
+			entry = probe_cache_entry__new(NULL);
+			if (!entry) {
+				ret = -ENOMEM;
+				break;
+			}
+			entry->sdt = true;
+			ret = asprintf(&entry->spev, "%s:%s=%s", sdtgrp,
+					note->name, note->name);
+			if (ret < 0)
+				break;
+			entry->pev.event = strdup(note->name);
+			entry->pev.group = strdup(sdtgrp);
+			list_add_tail(&entry->node, &pcache->entries);
+		}
+		ret = asprintf(&buf, "p:%s/%s %s:0x%llx",
+				sdtgrp, note->name, pathname,
+				sdt_note__get_addr(note));
+		if (ret < 0)
+			break;
+		strlist__add(entry->tevlist, buf);
+		free(buf);
+		entry = NULL;
+	}
+	if (entry) {
+		list_del_init(&entry->node);
+		probe_cache_entry__delete(entry);
+	}
+	cleanup_sdt_note_list(&sdtlist);
+	return ret;
+}
+
 static int probe_cache_entry__write(struct probe_cache_entry *entry, int fd)
 {
 	struct str_node *snode;
 	struct stat st;
 	struct iovec iov[3];
+	const char *prefix = entry->sdt ? "%" : "#";
 	int ret;
 	/* Save stat for rollback */
 	ret = fstat(fd, &st);
 	if (ret < 0)
 		return ret;
 
-	pr_debug("Writing cache: #%s\n", entry->spev);
-	iov[0].iov_base = (void *)"#"; iov[0].iov_len = 1;
+	pr_debug("Writing cache: %s%s\n", prefix, entry->spev);
+	iov[0].iov_base = (void *)prefix; iov[0].iov_len = 1;
 	iov[1].iov_base = entry->spev; iov[1].iov_len = strlen(entry->spev);
 	iov[2].iov_base = (void *)"\n"; iov[2].iov_len = 1;
 	ret = writev(fd, iov, 3);
diff --git a/tools/perf/util/probe-file.h b/tools/perf/util/probe-file.h
index 0ed1fc563b77..ddf5ae212c2f 100644
--- a/tools/perf/util/probe-file.h
+++ b/tools/perf/util/probe-file.h
@@ -8,6 +8,7 @@
 /* Cache of probe definitions */
 struct probe_cache_entry {
 	struct list_head	node;
+	bool			sdt;
 	struct perf_probe_event pev;
 	char			*spev;
 	struct strlist		*tevlist;
@@ -35,6 +36,7 @@ struct probe_cache *probe_cache__new(const char *target);
 int probe_cache__add_entry(struct probe_cache *pcache,
 			   struct perf_probe_event *pev,
 			   struct probe_trace_event *tevs, int ntevs);
+int probe_cache__scan_sdt(struct probe_cache *pcache, const char *pathname);
 int probe_cache__commit(struct probe_cache *pcache);
 void probe_cache__purge(struct probe_cache *pcache);
 void probe_cache__delete(struct probe_cache *pcache);
-- 
2.7.4

[PATCH 08/16] perf header: Transform nodes string info to struct

[Arnaldo Carvalho de Melo]

From: Jiri Olsa <jolsa@kernel.org>

Storing NUMA info within struct numa_node instead of strings. This way
it's usable in future patches.

Also it turned out it's slightly less code involved than using strings.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1467634583-29147-2-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/env.c    |  5 +++-
 tools/perf/util/env.h    | 10 ++++++-
 tools/perf/util/header.c | 76 +++++++++++++++++-------------------------------
 3 files changed, 39 insertions(+), 52 deletions(-)

diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c
index 49a11d9d8b8f..bb964e86b09d 100644
--- a/tools/perf/util/env.c
+++ b/tools/perf/util/env.c
@@ -18,10 +18,13 @@ void perf_env__exit(struct perf_env *env)
 	zfree(&env->cmdline_argv);
 	zfree(&env->sibling_cores);
 	zfree(&env->sibling_threads);
-	zfree(&env->numa_nodes);
 	zfree(&env->pmu_mappings);
 	zfree(&env->cpu);
 
+	for (i = 0; i < env->nr_numa_nodes; i++)
+		cpu_map__put(env->numa_nodes[i].map);
+	zfree(&env->numa_nodes);
+
 	for (i = 0; i < env->caches_cnt; i++)
 		cpu_cache_level__free(&env->caches[i]);
 	zfree(&env->caches);
diff --git a/tools/perf/util/env.h b/tools/perf/util/env.h
index 56cffb60a0b4..b164dfd2dcbf 100644
--- a/tools/perf/util/env.h
+++ b/tools/perf/util/env.h
@@ -2,6 +2,7 @@
 #define __PERF_ENV_H
 
 #include <linux/types.h>
+#include "cpumap.h"
 
 struct cpu_topology_map {
 	int	socket_id;
@@ -18,6 +19,13 @@ struct cpu_cache_level {
 	char	*map;
 };
 
+struct numa_node {
+	u32		 node;
+	u64		 mem_total;
+	u64		 mem_free;
+	struct cpu_map	*map;
+};
+
 struct perf_env {
 	char			*hostname;
 	char			*os_release;
@@ -40,11 +48,11 @@ struct perf_env {
 	const char		**cmdline_argv;
 	char			*sibling_cores;
 	char			*sibling_threads;
-	char			*numa_nodes;
 	char			*pmu_mappings;
 	struct cpu_topology_map	*cpu;
 	struct cpu_cache_level	*caches;
 	int			 caches_cnt;
+	struct numa_node	*numa_nodes;
 };
 
 extern struct perf_env perf_env;
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index c5cd2698281f..8f0db4007282 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -1306,42 +1306,19 @@ static void print_total_mem(struct perf_header *ph, int fd __maybe_unused,
 static void print_numa_topology(struct perf_header *ph, int fd __maybe_unused,
 				FILE *fp)
 {
-	u32 nr, c, i;
-	char *str, *tmp;
-	uint64_t mem_total, mem_free;
-
-	/* nr nodes */
-	nr = ph->env.nr_numa_nodes;
-	str = ph->env.numa_nodes;
-
-	for (i = 0; i < nr; i++) {
-		/* node number */
-		c = strtoul(str, &tmp, 0);
-		if (*tmp != ':')
-			goto error;
-
-		str = tmp + 1;
-		mem_total = strtoull(str, &tmp, 0);
-		if (*tmp != ':')
-			goto error;
+	int i;
+	struct numa_node *n;
 
-		str = tmp + 1;
-		mem_free = strtoull(str, &tmp, 0);
-		if (*tmp != ':')
-			goto error;
+	for (i = 0; i < ph->env.nr_numa_nodes; i++) {
+		n = &ph->env.numa_nodes[i];
 
 		fprintf(fp, "# node%u meminfo  : total = %"PRIu64" kB,"
 			    " free = %"PRIu64" kB\n",
-			c, mem_total, mem_free);
+			n->node, n->mem_total, n->mem_free);
 
-		str = tmp + 1;
-		fprintf(fp, "# node%u cpu list : %s\n", c, str);
-
-		str += strlen(str) + 1;
+		fprintf(fp, "# node%u cpu list : ", n->node);
+		cpu_map__fprintf(n->map, fp);
 	}
-	return;
-error:
-	fprintf(fp, "# numa topology : not available\n");
 }
 
 static void print_cpuid(struct perf_header *ph, int fd __maybe_unused, FILE *fp)
@@ -1906,11 +1883,10 @@ static int process_numa_topology(struct perf_file_section *section __maybe_unuse
 				 struct perf_header *ph, int fd,
 				 void *data __maybe_unused)
 {
+	struct numa_node *nodes, *n;
 	ssize_t ret;
-	u32 nr, node, i;
+	u32 nr, i;
 	char *str;
-	uint64_t mem_total, mem_free;
-	struct strbuf sb;
 
 	/* nr nodes */
 	ret = readn(fd, &nr, sizeof(nr));
@@ -1921,47 +1897,47 @@ static int process_numa_topology(struct perf_file_section *section __maybe_unuse
 		nr = bswap_32(nr);
 
 	ph->env.nr_numa_nodes = nr;
-	if (strbuf_init(&sb, 256) < 0)
-		return -1;
+	nodes = zalloc(sizeof(*nodes) * nr);
+	if (!nodes)
+		return -ENOMEM;
 
 	for (i = 0; i < nr; i++) {
+		n = &nodes[i];
+
 		/* node number */
-		ret = readn(fd, &node, sizeof(node));
-		if (ret != sizeof(node))
+		ret = readn(fd, &n->node, sizeof(u32));
+		if (ret != sizeof(n->node))
 			goto error;
 
-		ret = readn(fd, &mem_total, sizeof(u64));
+		ret = readn(fd, &n->mem_total, sizeof(u64));
 		if (ret != sizeof(u64))
 			goto error;
 
-		ret = readn(fd, &mem_free, sizeof(u64));
+		ret = readn(fd, &n->mem_free, sizeof(u64));
 		if (ret != sizeof(u64))
 			goto error;
 
 		if (ph->needs_swap) {
-			node = bswap_32(node);
-			mem_total = bswap_64(mem_total);
-			mem_free = bswap_64(mem_free);
+			n->node      = bswap_32(n->node);
+			n->mem_total = bswap_64(n->mem_total);
+			n->mem_free  = bswap_64(n->mem_free);
 		}
 
-		if (strbuf_addf(&sb, "%u:%"PRIu64":%"PRIu64":",
-				node, mem_total, mem_free) < 0)
-			goto error;
-
 		str = do_read_string(fd, ph);
 		if (!str)
 			goto error;
 
-		/* include a NULL character at the end */
-		if (strbuf_add(&sb, str, strlen(str) + 1) < 0)
+		n->map = cpu_map__new(str);
+		if (!n->map)
 			goto error;
+
 		free(str);
 	}
-	ph->env.numa_nodes = strbuf_detach(&sb, NULL);
+	ph->env.numa_nodes = nodes;
 	return 0;
 
 error:
-	strbuf_release(&sb);
+	free(nodes);
 	return -1;
 }
 
-- 
2.7.4

[PATCH 09/16] perf tests: Fix hist accumulation test

[Arnaldo Carvalho de Melo]

From: Jiri Olsa <jolsa@kernel.org>

User's values from .perfconfig could overload the default callchain
setup and cause this test to fail.  Making sure the test is using
default callchain_param values.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1467634583-29147-3-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/tests/hists_cumulate.c |  4 ++++
 tools/perf/util/callchain.h       |  1 +
 tools/perf/util/util.c            | 19 +++++++++++++------
 3 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/tools/perf/tests/hists_cumulate.c b/tools/perf/tests/hists_cumulate.c
index a9e3db3afac4..9fd54b79a788 100644
--- a/tools/perf/tests/hists_cumulate.c
+++ b/tools/perf/tests/hists_cumulate.c
@@ -216,6 +216,8 @@ static int do_test(struct hists *hists, struct result *expected, size_t nr_expec
 
 		/* check callchain entries */
 		root = &he->callchain->node.rb_root;
+
+		TEST_ASSERT_VAL("callchains expected", !RB_EMPTY_ROOT(root));
 		cnode = rb_entry(rb_first(root), struct callchain_node, rb_node);
 
 		c = 0;
@@ -666,6 +668,8 @@ static int test4(struct perf_evsel *evsel, struct machine *machine)
 	perf_evsel__set_sample_bit(evsel, CALLCHAIN);
 
 	setup_sorting(NULL);
+
+	callchain_param = callchain_param_default;
 	callchain_register_param(&callchain_param);
 
 	err = add_hist_entries(hists, machine);
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index a70f6b54eb92..13e75549c440 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -106,6 +106,7 @@ struct callchain_param {
 };
 
 extern struct callchain_param callchain_param;
+extern struct callchain_param callchain_param_default;
 
 struct callchain_list {
 	u64			ip;
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index e08b9a092a23..5f44a21955cd 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -19,12 +19,19 @@
 #include "callchain.h"
 #include "strlist.h"
 
-struct callchain_param	callchain_param = {
-	.mode	= CHAIN_GRAPH_ABS,
-	.min_percent = 0.5,
-	.order  = ORDER_CALLEE,
-	.key	= CCKEY_FUNCTION,
-	.value	= CCVAL_PERCENT,
+#define CALLCHAIN_PARAM_DEFAULT			\
+	.mode		= CHAIN_GRAPH_ABS,	\
+	.min_percent	= 0.5,			\
+	.order		= ORDER_CALLEE,		\
+	.key		= CCKEY_FUNCTION,	\
+	.value		= CCVAL_PERCENT,	\
+
+struct callchain_param callchain_param = {
+	CALLCHAIN_PARAM_DEFAULT
+};
+
+struct callchain_param callchain_param_default = {
+	CALLCHAIN_PARAM_DEFAULT
 };
 
 /*
-- 
2.7.4

[PATCH 10/16] perf unwind: Add initialized arg into unwind__prepare_access

[Arnaldo Carvalho de Melo]

From: Jiri Olsa <jolsa@kernel.org>

Adding initialized arg into unwind__prepare_access to get feedback about
the initialization state.

It's not possible to get it from error code, because we return 0 even in
case we don't recognize dso, which is valid.

The 'initialized' value is used in following patch to speedup
unwind__prepare_access calls logic in fork path.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1467634583-29147-4-git-send-email-jolsa@kernel.org
[ Remove ; after static inline function signatures, fixes build break ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/thread.c           |  2 +-
 tools/perf/util/unwind-libunwind.c | 11 +++++++++--
 tools/perf/util/unwind.h           |  9 ++++++---
 3 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index f30f9566fddc..2439b122a4e4 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -202,7 +202,7 @@ int thread__insert_map(struct thread *thread, struct map *map)
 {
 	int ret;
 
-	ret = unwind__prepare_access(thread, map);
+	ret = unwind__prepare_access(thread, map, NULL);
 	if (ret)
 		return ret;
 
diff --git a/tools/perf/util/unwind-libunwind.c b/tools/perf/util/unwind-libunwind.c
index 854711966cad..6d542a4e0648 100644
--- a/tools/perf/util/unwind-libunwind.c
+++ b/tools/perf/util/unwind-libunwind.c
@@ -14,15 +14,19 @@ static void unwind__register_ops(struct thread *thread,
 	thread->unwind_libunwind_ops = ops;
 }
 
-int unwind__prepare_access(struct thread *thread, struct map *map)
+int unwind__prepare_access(struct thread *thread, struct map *map,
+			   bool *initialized)
 {
 	const char *arch;
 	enum dso_type dso_type;
 	struct unwind_libunwind_ops *ops = local_unwind_libunwind_ops;
+	int err;
 
 	if (thread->addr_space) {
 		pr_debug("unwind: thread map already set, dso=%s\n",
 			 map->dso->name);
+		if (initialized)
+			*initialized = true;
 		return 0;
 	}
 
@@ -51,7 +55,10 @@ int unwind__prepare_access(struct thread *thread, struct map *map)
 out_register:
 	unwind__register_ops(thread, ops);
 
-	return thread->unwind_libunwind_ops->prepare_access(thread);
+	err = thread->unwind_libunwind_ops->prepare_access(thread);
+	if (initialized)
+		*initialized = err ? false : true;
+	return err;
 }
 
 void unwind__flush_access(struct thread *thread)
diff --git a/tools/perf/util/unwind.h b/tools/perf/util/unwind.h
index 84c6d44d52f9..61fb1e90ff51 100644
--- a/tools/perf/util/unwind.h
+++ b/tools/perf/util/unwind.h
@@ -42,12 +42,14 @@ int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
 #endif
 
 int LIBUNWIND__ARCH_REG_ID(int regnum);
-int unwind__prepare_access(struct thread *thread, struct map *map);
+int unwind__prepare_access(struct thread *thread, struct map *map,
+			   bool *initialized);
 void unwind__flush_access(struct thread *thread);
 void unwind__finish_access(struct thread *thread);
 #else
 static inline int unwind__prepare_access(struct thread *thread __maybe_unused,
-					 struct map *map __maybe_unused)
+					 struct map *map __maybe_unused,
+					 bool *initialized __maybe_unused)
 {
 	return 0;
 }
@@ -67,7 +69,8 @@ unwind__get_entries(unwind_entry_cb_t cb __maybe_unused,
 }
 
 static inline int unwind__prepare_access(struct thread *thread __maybe_unused,
-					 struct map *map __maybe_unused)
+					 struct map *map __maybe_unused,
+					 bool *initialized __maybe_unused)
 {
 	return 0;
 }
-- 
2.7.4

[PATCH 11/16] perf unwind: Call unwind__prepare_access for forked thread

[Arnaldo Carvalho de Melo]

From: Jiri Olsa <jolsa@kernel.org>

Currently we call unwind__prepare_access for map event.  In case we
report fork event the thread inherits its parent's maps and
unwind__prepare_access is never called for the thread.

This causes unwind__get_entries seeing uninitialized
unwind_libunwind_ops and thus returning no callchain.

Adding unwind__prepare_access calls for fork even processing.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1467634583-29147-5-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/map.c    |  9 ++++++++-
 tools/perf/util/map.h    |  2 +-
 tools/perf/util/thread.c | 37 +++++++++++++++++++++++++++++++++++--
 3 files changed, 44 insertions(+), 4 deletions(-)

diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index b19bcd3b7128..b39b12a1208d 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -15,6 +15,7 @@
 #include "debug.h"
 #include "machine.h"
 #include <linux/string.h>
+#include "unwind.h"
 
 static void __maps__insert(struct maps *maps, struct map *map);
 
@@ -744,9 +745,10 @@ int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map,
 /*
  * XXX This should not really _copy_ te maps, but refcount them.
  */
-int map_groups__clone(struct map_groups *mg,
+int map_groups__clone(struct thread *thread,
 		      struct map_groups *parent, enum map_type type)
 {
+	struct map_groups *mg = thread->mg;
 	int err = -ENOMEM;
 	struct map *map;
 	struct maps *maps = &parent->maps[type];
@@ -757,6 +759,11 @@ int map_groups__clone(struct map_groups *mg,
 		struct map *new = map__clone(map);
 		if (new == NULL)
 			goto out_unlock;
+
+		err = unwind__prepare_access(thread, new, NULL);
+		if (err)
+			goto out_unlock;
+
 		map_groups__insert(mg, new);
 		map__put(new);
 	}
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h
index 7309d64ce39e..d83396ceecba 100644
--- a/tools/perf/util/map.h
+++ b/tools/perf/util/map.h
@@ -194,7 +194,7 @@ struct symbol *maps__find_symbol_by_name(struct maps *maps, const char *name,
                                          struct map **mapp, symbol_filter_t filter);
 void map_groups__init(struct map_groups *mg, struct machine *machine);
 void map_groups__exit(struct map_groups *mg);
-int map_groups__clone(struct map_groups *mg,
+int map_groups__clone(struct thread *thread,
 		      struct map_groups *parent, enum map_type type);
 size_t map_groups__fprintf(struct map_groups *mg, FILE *fp);
 
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 2439b122a4e4..8b10a55410a2 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -212,6 +212,39 @@ int thread__insert_map(struct thread *thread, struct map *map)
 	return 0;
 }
 
+static int __thread__prepare_access(struct thread *thread)
+{
+	bool initialized = false;
+	int i, err = 0;
+
+	for (i = 0; i < MAP__NR_TYPES; ++i) {
+		struct maps *maps = &thread->mg->maps[i];
+		struct map *map;
+
+		pthread_rwlock_rdlock(&maps->lock);
+
+		for (map = maps__first(maps); map; map = map__next(map)) {
+			err = unwind__prepare_access(thread, map, &initialized);
+			if (err || initialized)
+				break;
+		}
+
+		pthread_rwlock_unlock(&maps->lock);
+	}
+
+	return err;
+}
+
+static int thread__prepare_access(struct thread *thread)
+{
+	int err = 0;
+
+	if (symbol_conf.use_callchain)
+		err = __thread__prepare_access(thread);
+
+	return err;
+}
+
 static int thread__clone_map_groups(struct thread *thread,
 				    struct thread *parent)
 {
@@ -219,7 +252,7 @@ static int thread__clone_map_groups(struct thread *thread,
 
 	/* This is new thread, we share map groups for process. */
 	if (thread->pid_ == parent->pid_)
-		return 0;
+		return thread__prepare_access(thread);
 
 	if (thread->mg == parent->mg) {
 		pr_debug("broken map groups on thread %d/%d parent %d/%d\n",
@@ -229,7 +262,7 @@ static int thread__clone_map_groups(struct thread *thread,
 
 	/* But this one is new process, copy maps. */
 	for (i = 0; i < MAP__NR_TYPES; ++i)
-		if (map_groups__clone(thread->mg, parent->mg, i) < 0)
+		if (map_groups__clone(thread, parent->mg, i) < 0)
 			return -ENOMEM;
 
 	return 0;
-- 
2.7.4

[PATCH 12/16] tools lib bpf: Add license header

[Arnaldo Carvalho de Melo]

From: Wang Nan <wangnan0@huawei.com>

Adding a missing license descriptopn header to files in libbpf, make it
LGPL-2.1.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Eric Leblond <eleblond@stamus-networks.com>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1467630162-193121-1-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/bpf/bpf.c    | 13 +++++++++++++
 tools/lib/bpf/bpf.h    | 13 +++++++++++++
 tools/lib/bpf/libbpf.c | 13 +++++++++++++
 tools/lib/bpf/libbpf.h | 13 +++++++++++++
 4 files changed, 52 insertions(+)

diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c
index 1f91cc941b7c..4212ed62235b 100644
--- a/tools/lib/bpf/bpf.c
+++ b/tools/lib/bpf/bpf.c
@@ -4,6 +4,19 @@
  * Copyright (C) 2013-2015 Alexei Starovoitov <ast@kernel.org>
  * Copyright (C) 2015 Wang Nan <wangnan0@huawei.com>
  * Copyright (C) 2015 Huawei Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License (not later!)
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not,  see <http://www.gnu.org/licenses>
  */
 
 #include <stdlib.h>
diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h
index a76465541292..e8ba54087497 100644
--- a/tools/lib/bpf/bpf.h
+++ b/tools/lib/bpf/bpf.h
@@ -4,6 +4,19 @@
  * Copyright (C) 2013-2015 Alexei Starovoitov <ast@kernel.org>
  * Copyright (C) 2015 Wang Nan <wangnan0@huawei.com>
  * Copyright (C) 2015 Huawei Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License (not later!)
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not,  see <http://www.gnu.org/licenses>
  */
 #ifndef __BPF_BPF_H
 #define __BPF_BPF_H
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index a7cb40abe634..3dcda9e215b0 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -4,6 +4,19 @@
  * Copyright (C) 2013-2015 Alexei Starovoitov <ast@kernel.org>
  * Copyright (C) 2015 Wang Nan <wangnan0@huawei.com>
  * Copyright (C) 2015 Huawei Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License (not later!)
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not,  see <http://www.gnu.org/licenses>
  */
 
 #include <stdlib.h>
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h
index 148df3640ba0..f392c5e04cc1 100644
--- a/tools/lib/bpf/libbpf.h
+++ b/tools/lib/bpf/libbpf.h
@@ -4,6 +4,19 @@
  * Copyright (C) 2013-2015 Alexei Starovoitov <ast@kernel.org>
  * Copyright (C) 2015 Wang Nan <wangnan0@huawei.com>
  * Copyright (C) 2015 Huawei Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License (not later!)
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not,  see <http://www.gnu.org/licenses>
  */
 #ifndef __BPF_LIBBPF_H
 #define __BPF_LIBBPF_H
-- 
2.7.4

[PATCH 13/16] tools lib api: Respect WERROR=0 for build

[Arnaldo Carvalho de Melo]

From: Chris Phlipot <cphlipot0@gmail.com>

This enables the workaround for compilers that generate warnings when
compiling libapi.

Signed-off-by: Chris Phlipot <cphlipot0@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1467349955-1135-2-git-send-email-cphlipot0@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/api/Makefile | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tools/lib/api/Makefile b/tools/lib/api/Makefile
index 67ff93ec1515..c7ceea6dd6cb 100644
--- a/tools/lib/api/Makefile
+++ b/tools/lib/api/Makefile
@@ -17,7 +17,13 @@ MAKEFLAGS += --no-print-directory
 LIBFILE = $(OUTPUT)libapi.a
 
 CFLAGS := $(EXTRA_WARNINGS) $(EXTRA_CFLAGS)
-CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -Werror -O6 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fPIC
+CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -O6 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fPIC
+
+# Treat warnings as errors unless directed not to
+ifneq ($(WERROR),0)
+  CFLAGS += -Werror
+endif
+
 CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
 CFLAGS += -I$(srctree)/tools/lib/api
 
-- 
2.7.4

[PATCH 14/16] tools lib subcmd: Respect WERROR=0 for build

[Arnaldo Carvalho de Melo]

From: Chris Phlipot <cphlipot0@gmail.com>

this enables the workaround for compilers that generate warnings when
compiling libsubcmd.

Signed-off-by: Chris Phlipot <cphlipot0@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1467349955-1135-3-git-send-email-cphlipot0@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/subcmd/Makefile | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tools/lib/subcmd/Makefile b/tools/lib/subcmd/Makefile
index a8103700c172..ce4b7e527566 100644
--- a/tools/lib/subcmd/Makefile
+++ b/tools/lib/subcmd/Makefile
@@ -19,7 +19,13 @@ MAKEFLAGS += --no-print-directory
 LIBFILE = $(OUTPUT)libsubcmd.a
 
 CFLAGS := $(EXTRA_WARNINGS) $(EXTRA_CFLAGS)
-CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -Werror -O6 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fPIC
+CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -O6 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fPIC
+
+# Treat warnings as errors unless directed not to
+ifneq ($(WERROR),0)
+  CFLAGS += -Werror
+endif
+
 CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
 
 CFLAGS += -I$(srctree)/tools/include/
-- 
2.7.4

[PATCH 15/16] perf tools: Update android build documentation

[Arnaldo Carvalho de Melo]

From: Chris Phlipot <cphlipot0@gmail.com>

Update the android build documentation according to recent android build
fixes. The instructions for step 1a and step 2 were updated to work with
NDK version 11(oldest supported version) and NDK version 12(current
version).

Signed-off-by: Chris Phlipot <cphlipot0@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1467349955-1135-5-git-send-email-cphlipot0@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/android.txt | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/tools/perf/Documentation/android.txt b/tools/perf/Documentation/android.txt
index 8484c3a04a6a..24a59998fc91 100644
--- a/tools/perf/Documentation/android.txt
+++ b/tools/perf/Documentation/android.txt
@@ -12,14 +12,14 @@ Set the NDK variable to point to the path where you installed the NDK:
 
 2. Set cross-compiling environment variables for NDK toolchain and sysroot.
 For arm:
-  export NDK_TOOLCHAIN=${NDK}/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86/bin/arm-linux-androideabi-
-  export NDK_SYSROOT=${NDK}/platforms/android-9/arch-arm
+  export NDK_TOOLCHAIN=${NDK}/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-
+  export NDK_SYSROOT=${NDK}/platforms/android-24/arch-arm
 For x86:
-  export NDK_TOOLCHAIN=${NDK}/toolchains/x86-4.6/prebuilt/linux-x86/bin/i686-linux-android-
-  export NDK_SYSROOT=${NDK}/platforms/android-9/arch-x86
+  export NDK_TOOLCHAIN=${NDK}/toolchains/x86-4.9/prebuilt/linux-x86_64/bin/i686-linux-android-
+  export NDK_SYSROOT=${NDK}/platforms/android-24/arch-x86
 
-This method is not working for Android NDK versions up to Revision 8b.
-perf uses some bionic enhancements that are not included in these NDK versions.
+This method is only tested for Android NDK versions Revision 11b and later.
+perf uses some bionic enhancements that are not included in prior NDK versions.
 You can use method (b) described below instead.
 
 (b). Use the Android source tree
@@ -49,9 +49,9 @@ II. Compile perf for Android
 ------------------------------------------------
 You need to run make with the NDK toolchain and sysroot defined above:
 For arm:
-  make ARCH=arm CROSS_COMPILE=${NDK_TOOLCHAIN} CFLAGS="--sysroot=${NDK_SYSROOT}"
+  make WERROR=0 ARCH=arm CROSS_COMPILE=${NDK_TOOLCHAIN} EXTRA_CFLAGS="-pie --sysroot=${NDK_SYSROOT}"
 For x86:
-  make ARCH=x86 CROSS_COMPILE=${NDK_TOOLCHAIN} CFLAGS="--sysroot=${NDK_SYSROOT}"
+  make WERROR=0 ARCH=x86 CROSS_COMPILE=${NDK_TOOLCHAIN} EXTRA_CFLAGS="-pie --sysroot=${NDK_SYSROOT}"
 
 III. Install perf
 -----------------------------------------------
-- 
2.7.4

[PATCH 16/16] perf tools: Sync copy of syscall_64.tbl with the kernel

[Arnaldo Carvalho de Melo]

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

Noticed by the build system, that emitted this warning:

  Warning: x86_64's syscall_64.tbl differs from kernel

This was due to the wiring up of the recently added preadv2 & pwritev2
syscalls to the compat code, which hadn't been done by the patch
introducing those syscalls: 4babf2c5efb7 ("x86: wire up preadv2 and
pwritev2").

The patch doing the compat wiring was:

  482dd2ef1244 ("x86/syscalls: Wire up compat readv2/writev2 syscalls")

This just silences the perf build warning, as compat syscalls still
can't be supported in 'perf trace´ due to limitations in the
raw_syscalls:sys_{enter,exit} tracepoints it relies on.

Reported-by: Ingo Molnar <mingo@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-4dm8eoy0wslgtwqdhz64ods0@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/arch/x86/entry/syscalls/syscall_64.tbl | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl b/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
index cac6d17ce5db..555263e385c9 100644
--- a/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
@@ -374,3 +374,5 @@
 543	x32	io_setup		compat_sys_io_setup
 544	x32	io_submit		compat_sys_io_submit
 545	x32	execveat		compat_sys_execveat/ptregs
+534	x32	preadv2			compat_sys_preadv2
+535	x32	pwritev2		compat_sys_pwritev2
-- 
2.7.4

Re: [GIT PULL 00/16] perf/core improvements and fixes

[Ingo Molnar]

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

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> 	Build status:
> 
> [root@jouet ~]# dm
> alpine:3.4: FAIL  <--- strerror_r usage needs to be made XSI-compliant, Alpine Linux uses musl libc
> centos:5: FAIL    <--- flex snafu, being investigated by Jiri
> centos:6: Ok
> centos:7: Ok
> debian:7: Ok
> debian:8: Ok
> debian:experimental: Ok
> fedora:21: Ok
> fedora:22: Ok
> fedora:23: Ok
> fedora:24: Ok
> fedora:rawhide: Ok
> mageia:5: Ok
> opensuse:13.2: Ok
> opensuse:42.1: Ok
> ubuntu:12.04.5: Ok
> ubuntu:14.04.4: Ok
> ubuntu:15.10: Ok
> ubuntu:16.04: Ok
> [root@jouet ~]#
> 
> 	These images are now available at: https://hub.docker.com/search/?q=acmel
> 
> 	And the 'dm' script at: https://fedorapeople.org/~acme/perf/dm
> 
> Regards,
> 
> - Arnaldo
> 
> The following changes since commit dc29bb47a34130459fadd58f05e2acd051a6327d:
> 
>   Merge tag 'perf-core-for-mingo-20160630' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-07-01 08:40:39 +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-20160704
> 
> for you to fetch changes up to f3d082ceabe53177c98bfa4580a294c2844966e8:
> 
>   perf tools: Sync copy of syscall_64.tbl with the kernel (2016-07-04 20:29:40 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> Documentation:
> 
> - Update android build documentation (Chris Phlipot)
> 
> Infrastructure:
> 
> - Respect WERROR=0 in libapi and libsubcmd, to allow building on Android (Chris Phlipot)
> 
> - Prep work to support SDT events in probe cache (Masami Hiramatsu)
> 
> - ELF support for SDT (Hemant Kumar)
> 
> - Add feature detection for libelf's elf_getshdrstrndx function (Arnaldo Carvalho de Melo)
> 
> - Fix hist accumulation test (Jiri Olsa)
> 
> - Unwind callchain fixes (Jiri Olsa)
> 
> - Change internal representation of numa nodes obtained from
>   perf.data header (Jiri Olsa)
> 
> - Sync copy of syscall_64.tbl with the kernel (Arnaldo Carvalho de Melo)
> 
> - Add LGPL 2.1 license header to libbpf source files (Wang Nan)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (2):
>       perf build: Add feature detection for libelf's elf_getshdrstrndx()
>       perf tools: Sync copy of syscall_64.tbl with the kernel
> 
> Chris Phlipot (3):
>       tools lib api: Respect WERROR=0 for build
>       tools lib subcmd: Respect WERROR=0 for build
>       perf tools: Update android build documentation
> 
> Hemant Kumar (1):
>       perf sdt: ELF support for SDT
> 
> Jiri Olsa (4):
>       perf header: Transform nodes string info to struct
>       perf tests: Fix hist accumulation test
>       perf unwind: Add initialized arg into unwind__prepare_access
>       perf unwind: Call unwind__prepare_access for forked thread
> 
> Masami Hiramatsu (5):
>       perf probe: Use cache entry if possible
>       perf probe: Show all cached probes
>       perf probe: Remove caches when --cache is given
>       perf probe: Add group name support
>       perf buildid-cache: Scan and import user SDT events to probe cache
> 
> Wang Nan (1):
>       tools lib bpf: Add license header
> 
>  tools/build/Makefile.feature                      |   1 +
>  tools/build/feature/Makefile                      |   4 +
>  tools/build/feature/test-all.c                    |   5 +
>  tools/build/feature/test-libelf-getshdrstrndx.c   |   8 +
>  tools/lib/api/Makefile                            |   8 +-
>  tools/lib/bpf/bpf.c                               |  13 ++
>  tools/lib/bpf/bpf.h                               |  13 ++
>  tools/lib/bpf/libbpf.c                            |  13 ++
>  tools/lib/bpf/libbpf.h                            |  13 ++
>  tools/lib/subcmd/Makefile                         |   8 +-
>  tools/perf/Documentation/android.txt              |  16 +-
>  tools/perf/Documentation/perf-buildid-cache.txt   |   3 +
>  tools/perf/Documentation/perf-probe.txt           |  19 +-
>  tools/perf/arch/x86/entry/syscalls/syscall_64.tbl |   2 +
>  tools/perf/builtin-probe.c                        |  31 ++-
>  tools/perf/config/Makefile                        |   4 +
>  tools/perf/tests/hists_cumulate.c                 |   4 +
>  tools/perf/util/build-id.c                        | 138 +++++++++++-
>  tools/perf/util/build-id.h                        |   3 +
>  tools/perf/util/callchain.h                       |   1 +
>  tools/perf/util/env.c                             |   5 +-
>  tools/perf/util/env.h                             |  10 +-
>  tools/perf/util/header.c                          |  76 +++----
>  tools/perf/util/map.c                             |   9 +-
>  tools/perf/util/map.h                             |   2 +-
>  tools/perf/util/probe-event.c                     |  91 +++++++-
>  tools/perf/util/probe-file.c                      | 175 ++++++++++++++-
>  tools/perf/util/probe-file.h                      |  10 +-
>  tools/perf/util/symbol-elf.c                      | 260 ++++++++++++++++++++++
>  tools/perf/util/symbol.h                          |  22 ++
>  tools/perf/util/thread.c                          |  39 +++-
>  tools/perf/util/unwind-libunwind.c                |  11 +-
>  tools/perf/util/unwind.h                          |   9 +-
>  tools/perf/util/util.c                            |  19 +-
>  34 files changed, 940 insertions(+), 105 deletions(-)
>  create mode 100644 tools/build/feature/test-libelf-getshdrstrndx.c

Pulled, thanks a lot Arnaldo!

	Ingo

Re: [GIT PULL 00/16] perf/core improvements and fixes

[Ingo Molnar]

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

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> Best regards,
> 
> - Arnaldo
> 
> Test results at the end of this message, as usual.
> 
> The following changes since commit 2573be22e5b6f24a0cabc97715c808c47e29eaaf:
> 
>   Merge tag 'perf-core-for-mingo-4.21-20190103' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent (2019-01-03 14:05:16 +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-4.21-20190104
> 
> for you to fetch changes up to 03fa483821c0b4db7c2b1453d3332f397d82313f:
> 
>   perf test shell: Use a fallback to get the pathname in vfs_getname (2019-01-04 15:12:29 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> perf annotate:
> 
>   Ivan Krylov:
> 
>   - Pass filename to objdump via execl, fixing usage with filenames
>     with special characters.
> 
> perf report:
> 
>   Jin Yao:
> 
>      Fix wrong iteration count in --branch-history
> 
> perf stat:
> 
>   Jin Yao:
> 
>   - Fix endless wait for child process
> 
> perf test:
> 
>   Arnaldo Carvalho de Melo:
> 
>   - Use a fallback to get the pathname in vfs_getname in
> 
> tools build:
> 
>   Jiri Olsa:
> 
>   - Allow overriding CFLAGS assignments.
> 
> Misc:
> 
>   Arnaldo Carvalho de Melo:
> 
>   - Syncronize UAPI headers
> 
>   Mattias Jacobsson:
> 
>   - Remove redundant va_end() in strbuf_addv()
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (10):
>       tools headers x86: Sync disabled-features.h
>       tools headers uapi: Sync prctl.h with the kernel sources
>       tools beauty: Make the prctl option table generator catch all PR_ options
>       tools headers uapi: Update i915_drm.h
>       tools headers uapi: Sync linux/in.h copy from the kernel sources
>       tools headers uapi: Sync linux/kvm.h with the kernel sources
>       tools headers uapi: Sync copy of asm-generic/unistd.h with the kernel sources
>       tools headers x86: Sync asm/cpufeatures.h copy with the kernel sources
>       perf python: Make sure the python binding output directory is in place
>       perf test shell: Use a fallback to get the pathname in vfs_getname
> 
> Ivan Krylov (1):
>       perf annotate: Pass filename to objdump via execl
> 
> Jin Yao (2):
>       perf stat: Fix endless wait for child process
>       perf report: Fix wrong iteration count in --branch-history
> 
> Jiri Olsa (2):
>       tools thermal tmon: Use -O3 instead of -O1 if available
>       tools iio: Override CFLAGS assignments
> 
> Mattias Jacobsson (1):
>       perf strbuf: Remove redundant va_end() in strbuf_addv()
> 
>  tools/arch/x86/include/asm/cpufeatures.h        |  2 ++
>  tools/arch/x86/include/asm/disabled-features.h  |  8 ++++++-
>  tools/iio/Makefile                              |  2 +-
>  tools/include/uapi/asm-generic/unistd.h         |  4 +++-
>  tools/include/uapi/drm/i915_drm.h               |  8 +++++++
>  tools/include/uapi/linux/in.h                   | 10 +++++---
>  tools/include/uapi/linux/kvm.h                  | 19 +++++++++++++++
>  tools/include/uapi/linux/prctl.h                |  8 +++++++
>  tools/perf/Makefile.perf                        |  4 +++-
>  tools/perf/builtin-stat.c                       |  3 ++-
>  tools/perf/tests/shell/lib/probe_vfs_getname.sh |  3 ++-
>  tools/perf/trace/beauty/prctl_option.sh         |  2 +-
>  tools/perf/util/annotate.c                      |  8 +++----
>  tools/perf/util/callchain.c                     | 32 +++++++++++++++----------
>  tools/perf/util/callchain.h                     |  1 +
>  tools/perf/util/machine.c                       |  2 +-
>  tools/perf/util/strbuf.c                        |  1 -
>  tools/thermal/tmon/Makefile                     |  2 +-
>  18 files changed, 90 insertions(+), 29 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/16] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

Best regards,

- Arnaldo

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

The following changes since commit 2573be22e5b6f24a0cabc97715c808c47e29eaaf:

  Merge tag 'perf-core-for-mingo-4.21-20190103' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent (2019-01-03 14:05:16 +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-4.21-20190104

for you to fetch changes up to 03fa483821c0b4db7c2b1453d3332f397d82313f:

  perf test shell: Use a fallback to get the pathname in vfs_getname (2019-01-04 15:12:29 -0300)

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

perf annotate:

  Ivan Krylov:

  - Pass filename to objdump via execl, fixing usage with filenames
    with special characters.

perf report:

  Jin Yao:

     Fix wrong iteration count in --branch-history

perf stat:

  Jin Yao:

  - Fix endless wait for child process

perf test:

  Arnaldo Carvalho de Melo:

  - Use a fallback to get the pathname in vfs_getname in

tools build:

  Jiri Olsa:

  - Allow overriding CFLAGS assignments.

Misc:

  Arnaldo Carvalho de Melo:

  - Syncronize UAPI headers

  Mattias Jacobsson:

  - Remove redundant va_end() in strbuf_addv()

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

----------------------------------------------------------------
Arnaldo Carvalho de Melo (10):
      tools headers x86: Sync disabled-features.h
      tools headers uapi: Sync prctl.h with the kernel sources
      tools beauty: Make the prctl option table generator catch all PR_ options
      tools headers uapi: Update i915_drm.h
      tools headers uapi: Sync linux/in.h copy from the kernel sources
      tools headers uapi: Sync linux/kvm.h with the kernel sources
      tools headers uapi: Sync copy of asm-generic/unistd.h with the kernel sources
      tools headers x86: Sync asm/cpufeatures.h copy with the kernel sources
      perf python: Make sure the python binding output directory is in place
      perf test shell: Use a fallback to get the pathname in vfs_getname

Ivan Krylov (1):
      perf annotate: Pass filename to objdump via execl

Jin Yao (2):
      perf stat: Fix endless wait for child process
      perf report: Fix wrong iteration count in --branch-history

Jiri Olsa (2):
      tools thermal tmon: Use -O3 instead of -O1 if available
      tools iio: Override CFLAGS assignments

Mattias Jacobsson (1):
      perf strbuf: Remove redundant va_end() in strbuf_addv()

 tools/arch/x86/include/asm/cpufeatures.h        |  2 ++
 tools/arch/x86/include/asm/disabled-features.h  |  8 ++++++-
 tools/iio/Makefile                              |  2 +-
 tools/include/uapi/asm-generic/unistd.h         |  4 +++-
 tools/include/uapi/drm/i915_drm.h               |  8 +++++++
 tools/include/uapi/linux/in.h                   | 10 +++++---
 tools/include/uapi/linux/kvm.h                  | 19 +++++++++++++++
 tools/include/uapi/linux/prctl.h                |  8 +++++++
 tools/perf/Makefile.perf                        |  4 +++-
 tools/perf/builtin-stat.c                       |  3 ++-
 tools/perf/tests/shell/lib/probe_vfs_getname.sh |  3 ++-
 tools/perf/trace/beauty/prctl_option.sh         |  2 +-
 tools/perf/util/annotate.c                      |  8 +++----
 tools/perf/util/callchain.c                     | 32 +++++++++++++++----------
 tools/perf/util/callchain.h                     |  1 +
 tools/perf/util/machine.c                       |  2 +-
 tools/perf/util/strbuf.c                        |  1 -
 tools/thermal/tmon/Makefile                     |  2 +-
 18 files changed, 90 insertions(+), 29 deletions(-)

Test results:

The first ones are container 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:3.8                    : Ok   gcc (Alpine 6.4.0) 6.4.0
   6  alpine:edge                   : Ok   gcc (Alpine 8.2.0) 8.2.0
   7  amazonlinux:1                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-28)
   8  amazonlinux:2                 : Ok   gcc (GCC) 7.3.1 20180303 (Red Hat 7.3.1-5)
   9  android-ndk:r12b-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
  10  android-ndk:r15c-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
  11  centos:5                      : Ok   gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-55)
  12  centos:6                      : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23)
  13  centos:7                      : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-36)
  14  clearlinux:latest             : Ok   gcc (Clear Linux OS for Intel Architecture) 8.2.1 20180502
  15  debian:7                      : Ok   gcc (Debian 4.7.2-5) 4.7.2
  16  debian:8                      : Ok   gcc (Debian 4.9.2-10+deb8u2) 4.9.2
  17  debian:9                      : Ok   gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516
  18  debian:experimental           : Ok   gcc (Debian 8.2.0-13) 8.2.0
  19  debian:experimental-x-arm64   : Ok   aarch64-linux-gnu-gcc (Debian 8.2.0-11) 8.2.0
  20  debian:experimental-x-mips    : Ok   mips-linux-gnu-gcc (Debian 8.2.0-11) 8.2.0
  21  debian:experimental-x-mips64  : Ok   mips64-linux-gnuabi64-gcc (Debian 8.2.0-11) 8.2.0
  22  debian:experimental-x-mipsel  : Ok   mipsel-linux-gnu-gcc (Debian 8.2.0-11) 8.2.0
  23  fedora:20                     : Ok   gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7)
  24  fedora:22                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
  25  fedora:23                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
  26  fedora:24                     : Ok   gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1)
  27  fedora:24-x-ARC-uClibc        : Ok   arc-linux-gcc (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710
  28  fedora:25                     : Ok   gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1)
  29  fedora:26                     : Ok   gcc (GCC) 7.3.1 20180130 (Red Hat 7.3.1-2)
  30  fedora:27                     : Ok   gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-6)
  31  fedora:28                     : Ok   gcc (GCC) 8.2.1 20181105 (Red Hat 8.2.1-5)
  32  fedora:29                     : Ok   gcc (GCC) 8.2.1 20181105 (Red Hat 8.2.1-5)
  33  fedora:rawhide                : Ok   gcc (GCC) 8.2.1 20181105 (Red Hat 8.2.1-5)
  34  gentoo-stage3-amd64:latest    : Ok   gcc (Gentoo 7.3.0-r3 p1.4) 7.3.0
  35  mageia:5                      : Ok   gcc (GCC) 4.9.2
  36  mageia:6                      : Ok   gcc (Mageia 5.5.0-1.mga6) 5.5.0
  37  opensuse:13.2                 : Ok   gcc (SUSE Linux) 4.8.3 20140627 [gcc-4_8-branch revision 212064]
  38  opensuse:15.0                 : Ok   gcc (SUSE Linux) 7.3.1 20180323 [gcc-7-branch revision 258812]
  39  opensuse:42.1                 : Ok   gcc (SUSE Linux) 4.8.5
  40  opensuse:42.2                 : Ok   gcc (SUSE Linux) 4.8.5
  41  opensuse:42.3                 : Ok   gcc (SUSE Linux) 4.8.5
  42  opensuse:tumbleweed           : Ok   gcc (SUSE Linux) 8.2.1 20181108 [gcc-8-branch revision 265914]
  43  oraclelinux:6                 : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23.0.1)
  44  oraclelinux:7                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-36.0.1)
  45  ubuntu:12.04.5                : Ok   gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
  46  ubuntu:14.04.4                : Ok   gcc (Ubuntu 4.8.4-2ubuntu1~14.04.4) 4.8.4
  47  ubuntu:14.04.4-x-linaro-arm64 : Ok   aarch64-linux-gnu-gcc (Linaro GCC 5.5-2017.10) 5.5.0
  48  ubuntu:16.04                  : Ok   gcc (Ubuntu 5.4.0-6ubuntu1~16.04.10) 5.4.0 20160609
  49  ubuntu:16.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  50  ubuntu:16.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  51  ubuntu:16.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  52  ubuntu:16.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  53  ubuntu:16.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  54  ubuntu:16.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
  55  ubuntu:17.10                  : Ok   gcc (Ubuntu 7.2.0-8ubuntu3.2) 7.2.0
  56  ubuntu:18.04                  : Ok   gcc (Ubuntu 7.3.0-27ubuntu1~18.04) 7.3.0
  57  ubuntu:18.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 7.3.0-27ubuntu1~18.04) 7.3.0
  58  ubuntu:18.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 7.3.0-27ubuntu1~18.04) 7.3.0
  59  ubuntu:18.04-x-m68k           : Ok   m68k-linux-gnu-gcc (Ubuntu 7.3.0-27ubuntu1~18.04) 7.3.0
  60  ubuntu:18.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 7.3.0-27ubuntu1~18.04) 7.3.0
  61  ubuntu:18.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu 7.3.0-27ubuntu1~18.04) 7.3.0
  62  ubuntu:18.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu 7.3.0-27ubuntu1~18.04) 7.3.0
  63  ubuntu:18.04-x-riscv64        : Ok   riscv64-linux-gnu-gcc (Ubuntu 7.3.0-27ubuntu1~18.04) 7.3.0
  64  ubuntu:18.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 7.3.0-27ubuntu1~18.04) 7.3.0
  65  ubuntu:18.04-x-sh4            : Ok   sh4-linux-gnu-gcc (Ubuntu 7.3.0-27ubuntu1~18.04) 7.3.0
  66  ubuntu:18.04-x-sparc64        : Ok   sparc64-linux-gnu-gcc (Ubuntu 7.3.0-27ubuntu1~18.04) 7.3.0
  67  ubuntu:18.10                  : Ok   gcc (Ubuntu 8.2.0-7ubuntu1) 8.2.0
  68  ubuntu:19.04                  : Ok   gcc (Ubuntu 8.2.0-12ubuntu1) 8.2.0
  69  ubuntu:19.04-x-alpha          : Ok   alpha-linux-gnu-gcc (Ubuntu 8.2.0-11ubuntu1) 8.2.0
  70  ubuntu:19.04-x-hppa           : Ok   hppa-linux-gnu-gcc (Ubuntu 8.2.0-11ubuntu1) 8.2.0

  # uname -a
  Linux quaco 4.19.13-300.fc29.x86_64 #1 SMP Sat Dec 29 22:54:28 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
  # git log --oneline -1
  03fa483821c0 perf test shell: Use a fallback to get the pathname in vfs_getname
  # perf version --build-options
  perf version 4.20.g03fa48
                   dwarf: [ on  ]  # HAVE_DWARF_SUPPORT
      dwarf_getlocations: [ on  ]  # HAVE_DWARF_GETLOCATIONS_SUPPORT
                   glibc: [ on  ]  # HAVE_GLIBC_SUPPORT
                    gtk2: [ on  ]  # HAVE_GTK2_SUPPORT
           syscall_table: [ on  ]  # HAVE_SYSCALL_TABLE_SUPPORT
                  libbfd: [ on  ]  # HAVE_LIBBFD_SUPPORT
                  libelf: [ on  ]  # HAVE_LIBELF_SUPPORT
                 libnuma: [ on  ]  # HAVE_LIBNUMA_SUPPORT
  numa_num_possible_cpus: [ on  ]  # HAVE_LIBNUMA_SUPPORT
                 libperl: [ on  ]  # HAVE_LIBPERL_SUPPORT
               libpython: [ on  ]  # HAVE_LIBPYTHON_SUPPORT
                libslang: [ on  ]  # HAVE_SLANG_SUPPORT
               libcrypto: [ on  ]  # HAVE_LIBCRYPTO_SUPPORT
               libunwind: [ on  ]  # HAVE_LIBUNWIND_SUPPORT
      libdw-dwarf-unwind: [ on  ]  # HAVE_DWARF_SUPPORT
                    zlib: [ on  ]  # HAVE_ZLIB_SUPPORT
                    lzma: [ on  ]  # HAVE_LZMA_SUPPORT
               get_cpuid: [ on  ]  # HAVE_AUXTRACE_SUPPORT
                     bpf: [ on  ]  # HAVE_LIBBPF_SUPPORT
  # 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: Watchpoint                                            :
  22.1: Read Only Watchpoint                                : Skip
  22.2: Write Only Watchpoint                               : Ok
  22.3: Read / Write Watchpoint                             : Ok
  22.4: Modify Watchpoint                                   : Ok
  23: Number of exit events of a simple workload            : Ok
  24: Software clock events period values                   : Ok
  25: Object code reading                                   : Ok
  26: Sample parsing                                        : Ok
  27: Use a dummy software event to keep tracking           : Ok
  28: Parse with no sample_id_all bit set                   : Ok
  29: Filter hist entries                                   : Ok
  30: Lookup mmap thread                                    : Ok
  31: Share thread mg                                       : Ok
  32: Sort output of hist entries                           : Ok
  33: Cumulate child hist entries                           : Ok
  34: Track with sched_switch                               : Ok
  35: Filter fds with revents mask in a fdarray             : Ok
  36: Add fd to a fdarray, making it autogrow               : Ok
  37: kmod_path__parse                                      : Ok
  38: Thread map                                            : Ok
  39: LLVM search and compile                               :
  39.1: Basic BPF llvm compile                              : Ok
  39.2: kbuild searching                                    : Ok
  39.3: Compile source for BPF prologue generation          : Ok
  39.4: Compile source for BPF relocation                   : Ok
  40: Session topology                                      : Ok
  41: BPF filter                                            :
  41.1: Basic BPF filtering                                 : Ok
  41.2: BPF pinning                                         : Ok
  41.3: BPF prologue generation                             : Ok
  41.4: BPF relocation checker                              : Ok
  42: Synthesize thread map                                 : Ok
  43: Remove thread map                                     : Ok
  44: Synthesize cpu map                                    : Ok
  45: Synthesize stat config                                : Ok
  46: Synthesize stat                                       : Ok
  47: Synthesize stat round                                 : Ok
  48: Synthesize attr update                                : Ok
  49: Event times                                           : Ok
  50: Read backward ring buffer                             : Ok
  51: Print cpu map                                         : Ok
  52: Probe SDT events                                      : Ok
  53: is_printable_array                                    : Ok
  54: Print bitmap                                          : Ok
  55: perf hooks                                            : Ok
  56: builtin clang support                                 : Skip (not compiled in)
  57: unit_number__scnprintf                                : Ok
  58: mem2node                                              : Ok
  59: x86 rdpmc                                             : Ok
  60: Convert perf time to TSC                              : Ok
  61: DWARF unwind                                          : Ok
  62: x86 instruction decoder - new instructions            : Ok
  63: x86 bp modify                                         : Ok
  64: probe libc's inet_pton & backtrace it with ping       : Ok
  65: Use vfs_getname probe to get syscall args filenames   : Ok
  66: Add vfs_getname probe to get syscall args filenames   : Ok
  67: Check open filename arg using perf trace + vfs_getname: Ok

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

Re: [GIT PULL 00/16] perf/core improvements and fixes

[Ingo Molnar]

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

> Hi Ingo,
> 
> 	This is on top of the previously submitted perf-core-for-mingo tag,
> please consider applying,
> 
> - Arnaldo
> 
> The following changes since commit 5ac76283b32b116c58e362e99542182ddcfc8262:
> 
>   perf cpumap: Auto initialize cpu__max_{node,cpu} (2016-01-26 16:08:36 -0300)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-2
> 
> for you to fetch changes up to 814568db641f6587c1e98a3a85f214cb6a30fe10:
> 
>   perf build: Align the names of the build tests: (2016-01-29 17:51:04 -0300)
> 
> ----------------------------------------------------------------
> New features:
> 
> - Port 'perf kvm stat' to PowerPC (Hemant Kumar)
> 
> Infrastructure:
> 
> - Use the 'feature-dump' target to do the feature checks just once and then
>   add code to reuse that in the tests/make makefile, speeding up the
>   'make -C tools/perf build-test' target (Wang Nan)
> 
> - Reduce the number of tests the 'build-test' target do to those that don't
>   pollute the source tree (Arnaldo Carvalho de Melo)
> 
> - Improve the output of the build tests a bit by aligning the name of the
>   tests, more can be done to filter out uninteresting info in the output
>   (Arnaldo Carvalho de Melo)
> 
> - Add perf_evlist pointer to *info_priv_size(), more prep work for
>   supporting the coresight architecture (Mathieu Poirier)
> 
> - Improve the 'perf test bp_signal' test (Wang Nan)
> 
> - Check environment before starting the BPF 'perf test', so that we can just
>   'Skip' older kernels instead of 'FAIL'ing them (Wang Nan)
> 
> - Fix cpumode of synthesized buildid event (Wang Nan)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (2):
>       perf tools: Speed up build-tests by reducing the number of builds tested
>       perf build: Align the names of the build tests:
> 
> Hemant Kumar (4):
>       perf kvm/{x86,s390}: Remove dependency on uapi/kvm_perf.h
>       perf kvm/{x86,s390}: Remove const from kvm_events_tp
>       perf kvm/powerpc: Port perf kvm stat to powerpc
>       perf kvm/powerpc: Add support for HCALL reasons
> 
> Jiri Olsa (1):
>       perf build: Fix feature-dump checks, we need to test all features
> 
> Mathieu Poirier (1):
>       perf auxtrace: Add perf_evlist pointer to *info_priv_size()
> 
> Wang Nan (8):
>       tools build: Check basic headers for test-compile feature checker
>       perf build: Remove all condition feature check {C,LD}FLAGS
>       perf build: Use feature dump file for build-test
>       perf buildid: Fix cpumode of buildid event
>       perf test: Check environment before start real BPF test
>       perf test: Improve bp_signal
>       perf tools: Move timestamp creation to util
>       perf record: Use OPT_BOOLEAN_SET for buildid cache related options
> 
>  tools/build/Makefile.feature                   |   8 ++
>  tools/build/feature/test-compile.c             |   2 +
>  tools/perf/Makefile                            |  11 +-
>  tools/perf/arch/powerpc/Makefile               |   2 +
>  tools/perf/arch/powerpc/util/Build             |   1 +
>  tools/perf/arch/powerpc/util/book3s_hcalls.h   | 123 ++++++++++++++++++
>  tools/perf/arch/powerpc/util/book3s_hv_exits.h |  33 +++++
>  tools/perf/arch/powerpc/util/kvm-stat.c        | 170 +++++++++++++++++++++++++
>  tools/perf/arch/s390/util/kvm-stat.c           |  10 +-
>  tools/perf/arch/x86/util/intel-bts.c           |   4 +-
>  tools/perf/arch/x86/util/intel-pt.c            |   4 +-
>  tools/perf/arch/x86/util/kvm-stat.c            |  16 ++-
>  tools/perf/builtin-buildid-cache.c             |  14 +-
>  tools/perf/builtin-kvm.c                       |  38 ++++--
>  tools/perf/builtin-record.c                    |  12 +-
>  tools/perf/config/Makefile                     | 101 +++++++--------
>  tools/perf/tests/bp_signal.c                   | 140 ++++++++++++++++----
>  tools/perf/tests/bpf.c                         |  37 ++++++
>  tools/perf/tests/make                          |  39 +++++-
>  tools/perf/util/auxtrace.c                     |   7 +-
>  tools/perf/util/auxtrace.h                     |   6 +-
>  tools/perf/util/build-id.c                     |   6 +-
>  tools/perf/util/kvm-stat.h                     |   8 +-
>  tools/perf/util/util.c                         |  17 +++
>  tools/perf/util/util.h                         |   1 +
>  25 files changed, 688 insertions(+), 122 deletions(-)
>  create mode 100644 tools/perf/arch/powerpc/util/book3s_hcalls.h
>  create mode 100644 tools/perf/arch/powerpc/util/book3s_hv_exits.h
>  create mode 100644 tools/perf/arch/powerpc/util/kvm-stat.c

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/16] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

See http://www.infradead.org/rpr.html

Hi Ingo,

	This is on top of the previously submitted perf-core-for-mingo tag,
please consider applying,

- Arnaldo

The following changes since commit 5ac76283b32b116c58e362e99542182ddcfc8262:

  perf cpumap: Auto initialize cpu__max_{node,cpu} (2016-01-26 16:08:36 -0300)

are available in the git repository at:

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

for you to fetch changes up to 814568db641f6587c1e98a3a85f214cb6a30fe10:

  perf build: Align the names of the build tests: (2016-01-29 17:51:04 -0300)

----------------------------------------------------------------
New features:

- Port 'perf kvm stat' to PowerPC (Hemant Kumar)

Infrastructure:

- Use the 'feature-dump' target to do the feature checks just once and then
  add code to reuse that in the tests/make makefile, speeding up the
  'make -C tools/perf build-test' target (Wang Nan)

- Reduce the number of tests the 'build-test' target do to those that don't
  pollute the source tree (Arnaldo Carvalho de Melo)

- Improve the output of the build tests a bit by aligning the name of the
  tests, more can be done to filter out uninteresting info in the output
  (Arnaldo Carvalho de Melo)

- Add perf_evlist pointer to *info_priv_size(), more prep work for
  supporting the coresight architecture (Mathieu Poirier)

- Improve the 'perf test bp_signal' test (Wang Nan)

- Check environment before starting the BPF 'perf test', so that we can just
  'Skip' older kernels instead of 'FAIL'ing them (Wang Nan)

- Fix cpumode of synthesized buildid event (Wang Nan)

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

----------------------------------------------------------------
Arnaldo Carvalho de Melo (2):
      perf tools: Speed up build-tests by reducing the number of builds tested
      perf build: Align the names of the build tests:

Hemant Kumar (4):
      perf kvm/{x86,s390}: Remove dependency on uapi/kvm_perf.h
      perf kvm/{x86,s390}: Remove const from kvm_events_tp
      perf kvm/powerpc: Port perf kvm stat to powerpc
      perf kvm/powerpc: Add support for HCALL reasons

Jiri Olsa (1):
      perf build: Fix feature-dump checks, we need to test all features

Mathieu Poirier (1):
      perf auxtrace: Add perf_evlist pointer to *info_priv_size()

Wang Nan (8):
      tools build: Check basic headers for test-compile feature checker
      perf build: Remove all condition feature check {C,LD}FLAGS
      perf build: Use feature dump file for build-test
      perf buildid: Fix cpumode of buildid event
      perf test: Check environment before start real BPF test
      perf test: Improve bp_signal
      perf tools: Move timestamp creation to util
      perf record: Use OPT_BOOLEAN_SET for buildid cache related options

 tools/build/Makefile.feature                   |   8 ++
 tools/build/feature/test-compile.c             |   2 +
 tools/perf/Makefile                            |  11 +-
 tools/perf/arch/powerpc/Makefile               |   2 +
 tools/perf/arch/powerpc/util/Build             |   1 +
 tools/perf/arch/powerpc/util/book3s_hcalls.h   | 123 ++++++++++++++++++
 tools/perf/arch/powerpc/util/book3s_hv_exits.h |  33 +++++
 tools/perf/arch/powerpc/util/kvm-stat.c        | 170 +++++++++++++++++++++++++
 tools/perf/arch/s390/util/kvm-stat.c           |  10 +-
 tools/perf/arch/x86/util/intel-bts.c           |   4 +-
 tools/perf/arch/x86/util/intel-pt.c            |   4 +-
 tools/perf/arch/x86/util/kvm-stat.c            |  16 ++-
 tools/perf/builtin-buildid-cache.c             |  14 +-
 tools/perf/builtin-kvm.c                       |  38 ++++--
 tools/perf/builtin-record.c                    |  12 +-
 tools/perf/config/Makefile                     | 101 +++++++--------
 tools/perf/tests/bp_signal.c                   | 140 ++++++++++++++++----
 tools/perf/tests/bpf.c                         |  37 ++++++
 tools/perf/tests/make                          |  39 +++++-
 tools/perf/util/auxtrace.c                     |   7 +-
 tools/perf/util/auxtrace.h                     |   6 +-
 tools/perf/util/build-id.c                     |   6 +-
 tools/perf/util/kvm-stat.h                     |   8 +-
 tools/perf/util/util.c                         |  17 +++
 tools/perf/util/util.h                         |   1 +
 25 files changed, 688 insertions(+), 122 deletions(-)
 create mode 100644 tools/perf/arch/powerpc/util/book3s_hcalls.h
 create mode 100644 tools/perf/arch/powerpc/util/book3s_hv_exits.h
 create mode 100644 tools/perf/arch/powerpc/util/kvm-stat.c

[GIT PULL 00/16] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit 0d76ded582c178d3cca55c9112eceb5b0f12f558:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-12-14 09:31:39 +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 7efe0e034c713716060bc7794c7e332589980c70:

  perf record: Support custom vmlinux path (2015-12-14 13:04:12 -0300)

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

User visible:

- Make command line options always available, even when they
  depend on some feature being enabled, warning the user about
  use of such options (Wang Nan)

- Support --vmlinux in perf record, useful, so far, for eBPF,
  where we will set up events that will be used in the record
  session (He Kuang)

- Automatically disable collecting branch flags and cycles with
  --call-graph lbr. This allows avoiding a bunch of extra MSR
  reads in the PMI on Skylake.  (Andi Kleen)

Infrastructure:

- Dump the stack when a 'perf test -v ' entry segfaults, so far we
  would have to run it under gdb with 'set follow-fork-mode child'
  set to get a proper backtrace (Arnaldo Carvalho de Melo)

- Initialize the refcnt in 'struct thread' to 1 and fixup its
  users accordingly, so that we try to have the same refcount
  model accross the perf codebase (Arnaldo Carvalho de Melo)

- More prep work for moving the subcmd infrastructure out of
  tools/perf/ and into tools/lib/subcmd/ to be used by other
  tools/ living utilities (Josh Poimboeuf)

- Fix 'perf test' hist testcases when kptr_restrict is on (Namhyung Kim)

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

----------------------------------------------------------------
Andi Kleen (1):
      perf evsel: Disable branch flags/cycles for --callgraph lbr

Arnaldo Carvalho de Melo (3):
      perf tools: Use same signal handling strategy as 'record'
      perf test: Dump the stack when test segfaults when in verbose mode
      perf thread: Fix reference count initial state

He Kuang (1):
      perf record: Support custom vmlinux path

Josh Poimboeuf (9):
      perf build: Remove unnecessary line in Makefile.feature
      perf test: Add Build file to dependencies for llvm-src-*.c
      perf test: Remove tarpkg at end of test
      perf build: Fix 'make clean'
      perf build: Rename LIB_PATH -> API_PATH
      perf tools: Create pager.h
      perf tools: Remove check for unused PERF_PAGER_IN_USE
      perf tools: Move help_unknown_cmd() to its own file
      perf tools: Convert parse-options.c internal functions to static

Namhyung Kim (1):
      perf test: Fix hist testcases when kptr_restrict is on

Wang Nan (1):
      perf tools: Make options always available, even if required libs not linked

 tools/build/Makefile.feature             |   1 -
 tools/perf/Documentation/perf-record.txt |  10 ++-
 tools/perf/Makefile.perf                 |  15 ++--
 tools/perf/builtin-probe.c               |  15 +++-
 tools/perf/builtin-record.c              |  25 +++++-
 tools/perf/tests/Build                   |   6 +-
 tools/perf/tests/builtin-test.c          |   3 +
 tools/perf/tests/hists_common.c          |   5 +-
 tools/perf/tests/make                    |   3 +-
 tools/perf/util/Build                    |   1 +
 tools/perf/util/cache.h                  |   5 +-
 tools/perf/util/evsel.c                  |  14 +++-
 tools/perf/util/help-unknown-cmd.c       | 103 +++++++++++++++++++++++
 tools/perf/util/help-unknown-cmd.h       |   0
 tools/perf/util/help.c                   | 107 +-----------------------
 tools/perf/util/help.h                   |   3 +
 tools/perf/util/intel-pt.c               |   4 +-
 tools/perf/util/machine.c                |  19 +++--
 tools/perf/util/pager.c                  |   8 +-
 tools/perf/util/pager.h                  |   7 ++
 tools/perf/util/parse-options.c          | 136 +++++++++++++++++++++++++++----
 tools/perf/util/parse-options.h          |  14 ++--
 tools/perf/util/thread.c                 |  10 ++-
 tools/perf/util/util.c                   |   3 +-
 24 files changed, 341 insertions(+), 176 deletions(-)
 create mode 100644 tools/perf/util/help-unknown-cmd.c
 create mode 100644 tools/perf/util/help-unknown-cmd.h
 create mode 100644 tools/perf/util/pager.h

Re: [GIT PULL 00/16] 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 e3b0ac1b7a8a590440a2030e7d10d48c59ab8a2a:
> 
>   Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-10-03 08:20:14 +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 27bf90bf0690f55c3679bcc4c325823cf1cfd19d:
> 
>   perf tools: Fail properly in case pattern matching fails to find tracepoint (2015-10-05 17:59:50 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible:
> 
> - Switch the default callchain output mode to 'graph,0.5,caller', to make it
>   look like the default for other tools, reducing the learning curve for
>   people used to 'caller' based viewing (Arnaldo Carvalho de Melo)
> 
> - Implement column based horizontal scrolling in the hists browser (top, report),
>   making it possible to use the TUI for things like 'perf mem report' where
>   there are many more columns than can fit in a terminal (Arnaldo Carvalho de Melo)
> 
> - Support sorting by symbol_iaddr with perf.data files produced by
>   'perf mem record' (Don Zickus)
> 
> - Display DATA_SRC sample type bit, i.e. when running 'perf evlist -v' the
>   "DATA_SRC" wasn't appearing when set, fix it to look like: (Jiri Olsa)
> 
>   cpu/mem-loads/pp: ...SNIP... sample_type: IP|TID|TIME|ADDR|CPU|PERIOD|DATA_SRC
> 
> - Introduce 'P' event modified, meaning 'max precision level, please', i.e.:
> 
>    $ perf record -e cycles:P usleep 1
> 
>   Is now similar to:
> 
>    $ perf record usleep 1
> 
>   Useful, for instance, when specifying multiple events (Jiri Olsa)
> 
> - Make 'perf -v' and 'perf -h' work (Jiri Olsa)
> 
> - Fail properly when pattern matching fails to find a tracepoint, i.e.
>   '-e non:existent' was being correctly handled, with a proper error message
>   about that not being a valid event, but '-e non:existent*' wasn't,
>   fix it (Jiri Olsa)
> 
> Infrastructure:
> 
> - Separate arch specific entries in 'perf test' and add an 'Intel CQM' one
>   to be fun on x86 only (Matt Fleming)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (3):
>       perf callchain: Switch default to 'graph,0.5,caller'
>       perf ui browser: Optional horizontal scrolling key binding
>       perf hists browser: Implement horizontal scrolling
> 
> Don Zickus (1):
>       perf tools: Add support for sorting on the iaddr
> 
> Jiri Olsa (9):
>       tools lib api fs: No need to use PATH_MAX + 1
>       perf evlist: Display DATA_SRC sample type bit
>       perf annotate: Fix sizeof_sym_hist overflow issue
>       perf tools: Export perf_event_attr__set_max_precise_ip()
>       perf tools: Introduce 'P' modifier to request max precision
>       perf tests: Add parsing test for 'P' modifier
>       perf tools: Setup proper width for symbol_iaddr field
>       perf tools: Handle -h and -v options
>       perf tools: Fail properly in case pattern matching fails to find tracepoint
> 
> Matt Fleming (3):
>       perf tests: Add arch tests
>       perf tests: Move x86 tests into arch directory
>       perf tests: Add Intel CQM test
> 
>  tools/lib/api/fs/fs.c                              |   2 +-
>  tools/lib/api/fs/tracing_path.c                    |   6 +-
>  tools/perf/Documentation/perf-list.txt             |   1 +
>  tools/perf/Documentation/perf-report.txt           |   2 +-
>  tools/perf/Documentation/perf.txt                  |   8 ++
>  tools/perf/arch/x86/Build                          |   2 +-
>  tools/perf/arch/x86/include/arch-tests.h           |  19 ++++
>  tools/perf/arch/x86/tests/Build                    |  10 +-
>  tools/perf/arch/x86/tests/arch-tests.c             |  34 ++++++
>  tools/perf/arch/x86/tests/dwarf-unwind.c           |   1 +
>  .../perf/{ => arch/x86}/tests/gen-insn-x86-dat.awk |   0
>  .../perf/{ => arch/x86}/tests/gen-insn-x86-dat.sh  |   0
>  tools/perf/{ => arch/x86}/tests/insn-x86-dat-32.c  |   0
>  tools/perf/{ => arch/x86}/tests/insn-x86-dat-64.c  |   0
>  tools/perf/{ => arch/x86}/tests/insn-x86-dat-src.c |   0
>  tools/perf/{ => arch/x86}/tests/insn-x86.c         |   3 +-
>  tools/perf/arch/x86/tests/intel-cqm.c              | 124 +++++++++++++++++++++
>  tools/perf/{ => arch/x86}/tests/perf-time-to-tsc.c |   4 +-
>  tools/perf/{ => arch/x86}/tests/rdpmc.c            |   7 +-
>  tools/perf/builtin-report.c                        |   4 +-
>  tools/perf/perf.c                                  |  14 +++
>  tools/perf/tests/Build                             |   6 -
>  tools/perf/tests/builtin-test.c                    |  56 ++++------
>  tools/perf/tests/dwarf-unwind.c                    |   4 +
>  tools/perf/tests/parse-events.c                    |  16 +++
>  tools/perf/tests/tests.h                           |  10 +-
>  tools/perf/ui/browser.c                            |  14 +++
>  tools/perf/ui/browser.h                            |   2 +-
>  tools/perf/ui/browsers/hists.c                     |  22 +++-
>  tools/perf/util/annotate.h                         |   2 +-
>  tools/perf/util/evlist.c                           |   2 +-
>  tools/perf/util/evlist.h                           |   2 +
>  tools/perf/util/evsel.c                            |   5 +-
>  tools/perf/util/evsel.h                            |   1 +
>  tools/perf/util/hist.c                             |  13 +++
>  tools/perf/util/hist.h                             |   1 +
>  tools/perf/util/parse-events.c                     |  17 ++-
>  tools/perf/util/parse-events.l                     |   2 +-
>  tools/perf/util/sort.c                             |  37 ++++++
>  tools/perf/util/sort.h                             |   1 +
>  tools/perf/util/util.c                             |   4 +-
>  41 files changed, 381 insertions(+), 77 deletions(-)
>  create mode 100644 tools/perf/arch/x86/include/arch-tests.h
>  create mode 100644 tools/perf/arch/x86/tests/arch-tests.c
>  rename tools/perf/{ => arch/x86}/tests/gen-insn-x86-dat.awk (100%)
>  rename tools/perf/{ => arch/x86}/tests/gen-insn-x86-dat.sh (100%)
>  rename tools/perf/{ => arch/x86}/tests/insn-x86-dat-32.c (100%)
>  rename tools/perf/{ => arch/x86}/tests/insn-x86-dat-64.c (100%)
>  rename tools/perf/{ => arch/x86}/tests/insn-x86-dat-src.c (100%)
>  rename tools/perf/{ => arch/x86}/tests/insn-x86.c (98%)
>  create mode 100644 tools/perf/arch/x86/tests/intel-cqm.c
>  rename tools/perf/{ => arch/x86}/tests/perf-time-to-tsc.c (98%)
>  rename tools/perf/{ => arch/x86}/tests/rdpmc.c (97%)

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/16] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit e3b0ac1b7a8a590440a2030e7d10d48c59ab8a2a:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-10-03 08:20:14 +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 27bf90bf0690f55c3679bcc4c325823cf1cfd19d:

  perf tools: Fail properly in case pattern matching fails to find tracepoint (2015-10-05 17:59:50 -0300)

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

User visible:

- Switch the default callchain output mode to 'graph,0.5,caller', to make it
  look like the default for other tools, reducing the learning curve for
  people used to 'caller' based viewing (Arnaldo Carvalho de Melo)

- Implement column based horizontal scrolling in the hists browser (top, report),
  making it possible to use the TUI for things like 'perf mem report' where
  there are many more columns than can fit in a terminal (Arnaldo Carvalho de Melo)

- Support sorting by symbol_iaddr with perf.data files produced by
  'perf mem record' (Don Zickus)

- Display DATA_SRC sample type bit, i.e. when running 'perf evlist -v' the
  "DATA_SRC" wasn't appearing when set, fix it to look like: (Jiri Olsa)

  cpu/mem-loads/pp: ...SNIP... sample_type: IP|TID|TIME|ADDR|CPU|PERIOD|DATA_SRC

- Introduce 'P' event modified, meaning 'max precision level, please', i.e.:

   $ perf record -e cycles:P usleep 1

  Is now similar to:

   $ perf record usleep 1

  Useful, for instance, when specifying multiple events (Jiri Olsa)

- Make 'perf -v' and 'perf -h' work (Jiri Olsa)

- Fail properly when pattern matching fails to find a tracepoint, i.e.
  '-e non:existent' was being correctly handled, with a proper error message
  about that not being a valid event, but '-e non:existent*' wasn't,
  fix it (Jiri Olsa)

Infrastructure:

- Separate arch specific entries in 'perf test' and add an 'Intel CQM' one
  to be fun on x86 only (Matt Fleming)

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

----------------------------------------------------------------
Arnaldo Carvalho de Melo (3):
      perf callchain: Switch default to 'graph,0.5,caller'
      perf ui browser: Optional horizontal scrolling key binding
      perf hists browser: Implement horizontal scrolling

Don Zickus (1):
      perf tools: Add support for sorting on the iaddr

Jiri Olsa (9):
      tools lib api fs: No need to use PATH_MAX + 1
      perf evlist: Display DATA_SRC sample type bit
      perf annotate: Fix sizeof_sym_hist overflow issue
      perf tools: Export perf_event_attr__set_max_precise_ip()
      perf tools: Introduce 'P' modifier to request max precision
      perf tests: Add parsing test for 'P' modifier
      perf tools: Setup proper width for symbol_iaddr field
      perf tools: Handle -h and -v options
      perf tools: Fail properly in case pattern matching fails to find tracepoint

Matt Fleming (3):
      perf tests: Add arch tests
      perf tests: Move x86 tests into arch directory
      perf tests: Add Intel CQM test

 tools/lib/api/fs/fs.c                              |   2 +-
 tools/lib/api/fs/tracing_path.c                    |   6 +-
 tools/perf/Documentation/perf-list.txt             |   1 +
 tools/perf/Documentation/perf-report.txt           |   2 +-
 tools/perf/Documentation/perf.txt                  |   8 ++
 tools/perf/arch/x86/Build                          |   2 +-
 tools/perf/arch/x86/include/arch-tests.h           |  19 ++++
 tools/perf/arch/x86/tests/Build                    |  10 +-
 tools/perf/arch/x86/tests/arch-tests.c             |  34 ++++++
 tools/perf/arch/x86/tests/dwarf-unwind.c           |   1 +
 .../perf/{ => arch/x86}/tests/gen-insn-x86-dat.awk |   0
 .../perf/{ => arch/x86}/tests/gen-insn-x86-dat.sh  |   0
 tools/perf/{ => arch/x86}/tests/insn-x86-dat-32.c  |   0
 tools/perf/{ => arch/x86}/tests/insn-x86-dat-64.c  |   0
 tools/perf/{ => arch/x86}/tests/insn-x86-dat-src.c |   0
 tools/perf/{ => arch/x86}/tests/insn-x86.c         |   3 +-
 tools/perf/arch/x86/tests/intel-cqm.c              | 124 +++++++++++++++++++++
 tools/perf/{ => arch/x86}/tests/perf-time-to-tsc.c |   4 +-
 tools/perf/{ => arch/x86}/tests/rdpmc.c            |   7 +-
 tools/perf/builtin-report.c                        |   4 +-
 tools/perf/perf.c                                  |  14 +++
 tools/perf/tests/Build                             |   6 -
 tools/perf/tests/builtin-test.c                    |  56 ++++------
 tools/perf/tests/dwarf-unwind.c                    |   4 +
 tools/perf/tests/parse-events.c                    |  16 +++
 tools/perf/tests/tests.h                           |  10 +-
 tools/perf/ui/browser.c                            |  14 +++
 tools/perf/ui/browser.h                            |   2 +-
 tools/perf/ui/browsers/hists.c                     |  22 +++-
 tools/perf/util/annotate.h                         |   2 +-
 tools/perf/util/evlist.c                           |   2 +-
 tools/perf/util/evlist.h                           |   2 +
 tools/perf/util/evsel.c                            |   5 +-
 tools/perf/util/evsel.h                            |   1 +
 tools/perf/util/hist.c                             |  13 +++
 tools/perf/util/hist.h                             |   1 +
 tools/perf/util/parse-events.c                     |  17 ++-
 tools/perf/util/parse-events.l                     |   2 +-
 tools/perf/util/sort.c                             |  37 ++++++
 tools/perf/util/sort.h                             |   1 +
 tools/perf/util/util.c                             |   4 +-
 41 files changed, 381 insertions(+), 77 deletions(-)
 create mode 100644 tools/perf/arch/x86/include/arch-tests.h
 create mode 100644 tools/perf/arch/x86/tests/arch-tests.c
 rename tools/perf/{ => arch/x86}/tests/gen-insn-x86-dat.awk (100%)
 rename tools/perf/{ => arch/x86}/tests/gen-insn-x86-dat.sh (100%)
 rename tools/perf/{ => arch/x86}/tests/insn-x86-dat-32.c (100%)
 rename tools/perf/{ => arch/x86}/tests/insn-x86-dat-64.c (100%)
 rename tools/perf/{ => arch/x86}/tests/insn-x86-dat-src.c (100%)
 rename tools/perf/{ => arch/x86}/tests/insn-x86.c (98%)
 create mode 100644 tools/perf/arch/x86/tests/intel-cqm.c
 rename tools/perf/{ => arch/x86}/tests/perf-time-to-tsc.c (98%)
 rename tools/perf/{ => arch/x86}/tests/rdpmc.c (97%)

Re: [GIT PULL 00/16] 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 9c17dbc6eb73bdd8a6aaea1baefd37ff78d86148:
> 
>   Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-09-29 09:43:46 +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 7f8d1ade1b19f684ed3a7c4fb1dc5d347127b438:
> 
>   perf tools: By default use the most precise "cycles" hw counter available (2015-09-30 18:34:39 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible:
> 
> - By default use the most precise "cycles" hw counter available, i.e.
>   when the user doesn't specify any event, it will try using cycles:ppp,
>   cycles:pp, etc (Arnaldo Carvalho de Melo)

That looks really useful!

> - Remove blank lines, headers when piping output in 'perf list', so that it can
>   be sanely used with 'wc -l', etc (Arnaldo Carvalho de Melo)
> 
> - Amend documentation about max_stack and synthesized callchains (Adrian Hunter)
> 
> - Fix 'perf probe -l' for probes added to kernel module functions (Masami Hiramatsu)
> 
> Build fixes:
> 
> - Fix shadowed declarations that break the build on older distros (Jiri Olsa)
> 
> - Fix build break on powerpc due to sample_reg_masks (Sukadev Bhattiprolu)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Adrian Hunter (1):
>       perf report: Amend documentation about max_stack and synthesized callchains
> 
> Arnaldo Carvalho de Melo (7):
>       perf maps: Introduce maps__find_symbol_by_name()
>       perf machine: Use machine__kernel_map() thoroughly
>       perf machine: Add method for common kernel_map(FUNCTION) operation
>       tools lib symbol: Rename kallsyms2elf_type to kallsyms2elf_binding
>       tools lib symbol: Introduce kallsyms2elf_type
>       perf list: Remove blank lines, headers when piping output
>       perf tools: By default use the most precise "cycles" hw counter available
> 
> Jiri Olsa (2):
>       tools: Fix shadowed declaration in err.h
>       perf tools: Fix shadowed declaration in parse-events.c
> 
> Masami Hiramatsu (5):
>       perf probe: Fix to remove dot suffix from second or latter events
>       perf probe: Begin and end libdwfl report session correctly
>       perf probe: Show correct source lines of probes on kmodules
>       perf probe: Fix a segfault bug in debuginfo_cache
>       perf probe: Improve error message when %return is on inlined function
> 
> Sukadev Bhattiprolu (1):
>       perf tools: Fix build break on powerpc due to sample_reg_masks
> 
>  tools/include/linux/err.h                |  4 +-
>  tools/lib/symbol/kallsyms.c              |  6 ++
>  tools/lib/symbol/kallsyms.h              |  4 +-
>  tools/perf/Documentation/perf-report.txt |  2 +
>  tools/perf/builtin-kmem.c                |  2 +-
>  tools/perf/builtin-list.c                |  2 +-
>  tools/perf/builtin-report.c              |  2 +-
>  tools/perf/tests/code-reading.c          |  2 +-
>  tools/perf/tests/vmlinux-kallsyms.c      |  4 +-
>  tools/perf/util/Build                    |  2 +-
>  tools/perf/util/event.c                  |  7 +--
>  tools/perf/util/evlist.c                 | 22 +++++++-
>  tools/perf/util/intel-pt.c               |  2 +-
>  tools/perf/util/machine.c                | 26 ++++-----
>  tools/perf/util/machine.h                |  8 ++-
>  tools/perf/util/map.c                    | 21 ++++---
>  tools/perf/util/map.h                    |  2 +
>  tools/perf/util/parse-events.c           | 53 +++++++++---------
>  tools/perf/util/perf_regs.c              |  2 +
>  tools/perf/util/perf_regs.h              |  1 +
>  tools/perf/util/pmu.c                    |  2 +-
>  tools/perf/util/probe-event.c            | 96 ++++++++++++++++++++------------
>  tools/perf/util/probe-finder.c           | 58 +++++++++++++++++--
>  tools/perf/util/symbol.c                 |  2 +-
>  24 files changed, 224 insertions(+), 108 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/16] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit 9c17dbc6eb73bdd8a6aaea1baefd37ff78d86148:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-09-29 09:43:46 +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 7f8d1ade1b19f684ed3a7c4fb1dc5d347127b438:

  perf tools: By default use the most precise "cycles" hw counter available (2015-09-30 18:34:39 -0300)

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

User visible:

- By default use the most precise "cycles" hw counter available, i.e.
  when the user doesn't specify any event, it will try using cycles:ppp,
  cycles:pp, etc (Arnaldo Carvalho de Melo)

- Remove blank lines, headers when piping output in 'perf list', so that it can
  be sanely used with 'wc -l', etc (Arnaldo Carvalho de Melo)

- Amend documentation about max_stack and synthesized callchains (Adrian Hunter)

- Fix 'perf probe -l' for probes added to kernel module functions (Masami Hiramatsu)

Build fixes:

- Fix shadowed declarations that break the build on older distros (Jiri Olsa)

- Fix build break on powerpc due to sample_reg_masks (Sukadev Bhattiprolu)

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

----------------------------------------------------------------
Adrian Hunter (1):
      perf report: Amend documentation about max_stack and synthesized callchains

Arnaldo Carvalho de Melo (7):
      perf maps: Introduce maps__find_symbol_by_name()
      perf machine: Use machine__kernel_map() thoroughly
      perf machine: Add method for common kernel_map(FUNCTION) operation
      tools lib symbol: Rename kallsyms2elf_type to kallsyms2elf_binding
      tools lib symbol: Introduce kallsyms2elf_type
      perf list: Remove blank lines, headers when piping output
      perf tools: By default use the most precise "cycles" hw counter available

Jiri Olsa (2):
      tools: Fix shadowed declaration in err.h
      perf tools: Fix shadowed declaration in parse-events.c

Masami Hiramatsu (5):
      perf probe: Fix to remove dot suffix from second or latter events
      perf probe: Begin and end libdwfl report session correctly
      perf probe: Show correct source lines of probes on kmodules
      perf probe: Fix a segfault bug in debuginfo_cache
      perf probe: Improve error message when %return is on inlined function

Sukadev Bhattiprolu (1):
      perf tools: Fix build break on powerpc due to sample_reg_masks

 tools/include/linux/err.h                |  4 +-
 tools/lib/symbol/kallsyms.c              |  6 ++
 tools/lib/symbol/kallsyms.h              |  4 +-
 tools/perf/Documentation/perf-report.txt |  2 +
 tools/perf/builtin-kmem.c                |  2 +-
 tools/perf/builtin-list.c                |  2 +-
 tools/perf/builtin-report.c              |  2 +-
 tools/perf/tests/code-reading.c          |  2 +-
 tools/perf/tests/vmlinux-kallsyms.c      |  4 +-
 tools/perf/util/Build                    |  2 +-
 tools/perf/util/event.c                  |  7 +--
 tools/perf/util/evlist.c                 | 22 +++++++-
 tools/perf/util/intel-pt.c               |  2 +-
 tools/perf/util/machine.c                | 26 ++++-----
 tools/perf/util/machine.h                |  8 ++-
 tools/perf/util/map.c                    | 21 ++++---
 tools/perf/util/map.h                    |  2 +
 tools/perf/util/parse-events.c           | 53 +++++++++---------
 tools/perf/util/perf_regs.c              |  2 +
 tools/perf/util/perf_regs.h              |  1 +
 tools/perf/util/pmu.c                    |  2 +-
 tools/perf/util/probe-event.c            | 96 ++++++++++++++++++++------------
 tools/perf/util/probe-finder.c           | 58 +++++++++++++++++--
 tools/perf/util/symbol.c                 |  2 +-
 24 files changed, 224 insertions(+), 108 deletions(-)

Re: [GIT PULL 00/16] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Em Tue, Aug 25, 2015 at 01:14:22PM -0300, Arnaldo Carvalho de Melo escreveu:
> Hi Ingo,
> 
> 	Please consider pulling, now to get back looking at eBPF :-)

Ingo, please do not process this one, there was a NAK from Masami to
some new syntax on adding non symbolic probes, will resubmit with the
new patches provided by Wang Nan that already got Masami's approval.

- Arnaldo
 
> - Arnaldo
> 
> The following changes since commit 0e53909a1cf0153736fb52c216558a65530d8c40:
> 
>   Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-08-22 08:45:46 +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 1cbebfc7abb549ed3f4080e12c4d7b07d1f16637:
> 
>   perf probe: Support probing at absolute addresses (2015-08-25 12:36:22 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible:
> 
> - Add support for using several Intel PT features (CYC, MTC packets), the
>   relevant documentation was updated: tools/perf/Documentation/intel-pt.txt,
>   briefly describing those packets, its purposes, how to configure them in
>   the event config terms and relevant external documentation for further
>   reading. (Adrian Hunter)
> 
> - Introduce support for probing at an absolut address, for user and kernel
>   'perf probe's, useful when one have the symbol maps on a developer machine
>   but not on an embedded system (Wang Nan)
> 
> - Clear the progress bar at the end of a ordered_events flush, fixing
>   an UI artifact when, after ordering the events the screen doesn't get
>   completely redraw, for instance, when an error window covers just the
>   center of the screen and waits for user input. (Arnaldo Carvalho de Melo)
> 
> - Fix 'annotate' segfault by resetting the dso find_symbol cache when removing
>   symbols (Arnaldo Carvalho de Melo)
> 
> Infrastructure:
> 
> - Fix Intel PT 'instructions' sample period (Adrian Hunter)
> 
> - Prevent segfault when reading probe point with absolute address (Wang Nan)
> 
> Build fixes:
> 
> - Fix tarball build broken by pt/bts (Adrian Hunter)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Adrian Hunter (11):
>       perf tools: Fix tarball build broken by pt/bts
>       perf tools: Fix Intel PT 'instructions' sample period
>       perf tools: Add Intel PT support for PSB periods
>       perf tools: Add new Intel PT packet definitions
>       perf tools: Pass Intel PT information for decoding MTC and CYC
>       perf tools: Add Intel PT support for decoding MTC packets
>       perf tools: Add Intel PT support for using MTC packets
>       perf tools: Add Intel PT support for decoding CYC packets
>       perf tools: Add Intel PT support for using CYC packets
>       perf tools: Add Intel PT support for decoding TRACESTOP packets
>       perf tools: Update Intel PT documentation
> 
> Arnaldo Carvalho de Melo (3):
>       perf annotate: Reset the dso find_symbol cache when removing symbols
>       perf ui tui progress: Implement the ui_progress_ops->finish() method
>       perf ordered_events: Clear the progress bar at the end of a flush
> 
> Wang Nan (2):
>       perf probe: Prevent segfault when reading probe point with absolute address
>       perf probe: Support probing at absolute addresses
> 
>  tools/perf/Documentation/intel-pt.txt              | 194 ++++++-
>  tools/perf/arch/x86/util/intel-pt.c                | 271 +++++++++-
>  tools/perf/builtin-annotate.c                      |   1 +
>  tools/perf/ui/tui/progress.c                       |  19 +-
>  tools/perf/util/dso.h                              |   2 +
>  tools/perf/util/intel-pt-decoder/inat.c            |   2 +-
>  tools/perf/util/intel-pt-decoder/inat.h            |   2 +-
>  tools/perf/util/intel-pt-decoder/inat_types.h      |  29 ++
>  tools/perf/util/intel-pt-decoder/insn.c            |   4 +-
>  tools/perf/util/intel-pt-decoder/insn.h            |   2 +-
>  .../perf/util/intel-pt-decoder/intel-pt-decoder.c  | 555 ++++++++++++++++++++-
>  .../perf/util/intel-pt-decoder/intel-pt-decoder.h  |   5 +
>  .../util/intel-pt-decoder/intel-pt-insn-decoder.c  |   2 +-
>  .../util/intel-pt-decoder/intel-pt-pkt-decoder.c   | 142 +++++-
>  .../util/intel-pt-decoder/intel-pt-pkt-decoder.h   |   6 +
>  tools/perf/util/intel-pt.c                         |  67 ++-
>  tools/perf/util/intel-pt.h                         |   5 +
>  tools/perf/util/ordered-events.c                   |   3 +
>  tools/perf/util/probe-event.c                      | 152 +++++-
>  tools/perf/util/probe-event.h                      |   3 +
>  tools/perf/util/probe-finder.c                     |  21 +-
>  tools/perf/util/symbol.c                           |  10 +
>  22 files changed, 1404 insertions(+), 93 deletions(-)
>  create mode 100644 tools/perf/util/intel-pt-decoder/inat_types.h
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/

[GIT PULL 00/16] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling, now to get back looking at eBPF :-)

- Arnaldo

The following changes since commit 0e53909a1cf0153736fb52c216558a65530d8c40:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-08-22 08:45:46 +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 1cbebfc7abb549ed3f4080e12c4d7b07d1f16637:

  perf probe: Support probing at absolute addresses (2015-08-25 12:36:22 -0300)

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

User visible:

- Add support for using several Intel PT features (CYC, MTC packets), the
  relevant documentation was updated: tools/perf/Documentation/intel-pt.txt,
  briefly describing those packets, its purposes, how to configure them in
  the event config terms and relevant external documentation for further
  reading. (Adrian Hunter)

- Introduce support for probing at an absolut address, for user and kernel
  'perf probe's, useful when one have the symbol maps on a developer machine
  but not on an embedded system (Wang Nan)

- Clear the progress bar at the end of a ordered_events flush, fixing
  an UI artifact when, after ordering the events the screen doesn't get
  completely redraw, for instance, when an error window covers just the
  center of the screen and waits for user input. (Arnaldo Carvalho de Melo)

- Fix 'annotate' segfault by resetting the dso find_symbol cache when removing
  symbols (Arnaldo Carvalho de Melo)

Infrastructure:

- Fix Intel PT 'instructions' sample period (Adrian Hunter)

- Prevent segfault when reading probe point with absolute address (Wang Nan)

Build fixes:

- Fix tarball build broken by pt/bts (Adrian Hunter)

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

----------------------------------------------------------------
Adrian Hunter (11):
      perf tools: Fix tarball build broken by pt/bts
      perf tools: Fix Intel PT 'instructions' sample period
      perf tools: Add Intel PT support for PSB periods
      perf tools: Add new Intel PT packet definitions
      perf tools: Pass Intel PT information for decoding MTC and CYC
      perf tools: Add Intel PT support for decoding MTC packets
      perf tools: Add Intel PT support for using MTC packets
      perf tools: Add Intel PT support for decoding CYC packets
      perf tools: Add Intel PT support for using CYC packets
      perf tools: Add Intel PT support for decoding TRACESTOP packets
      perf tools: Update Intel PT documentation

Arnaldo Carvalho de Melo (3):
      perf annotate: Reset the dso find_symbol cache when removing symbols
      perf ui tui progress: Implement the ui_progress_ops->finish() method
      perf ordered_events: Clear the progress bar at the end of a flush

Wang Nan (2):
      perf probe: Prevent segfault when reading probe point with absolute address
      perf probe: Support probing at absolute addresses

 tools/perf/Documentation/intel-pt.txt              | 194 ++++++-
 tools/perf/arch/x86/util/intel-pt.c                | 271 +++++++++-
 tools/perf/builtin-annotate.c                      |   1 +
 tools/perf/ui/tui/progress.c                       |  19 +-
 tools/perf/util/dso.h                              |   2 +
 tools/perf/util/intel-pt-decoder/inat.c            |   2 +-
 tools/perf/util/intel-pt-decoder/inat.h            |   2 +-
 tools/perf/util/intel-pt-decoder/inat_types.h      |  29 ++
 tools/perf/util/intel-pt-decoder/insn.c            |   4 +-
 tools/perf/util/intel-pt-decoder/insn.h            |   2 +-
 .../perf/util/intel-pt-decoder/intel-pt-decoder.c  | 555 ++++++++++++++++++++-
 .../perf/util/intel-pt-decoder/intel-pt-decoder.h  |   5 +
 .../util/intel-pt-decoder/intel-pt-insn-decoder.c  |   2 +-
 .../util/intel-pt-decoder/intel-pt-pkt-decoder.c   | 142 +++++-
 .../util/intel-pt-decoder/intel-pt-pkt-decoder.h   |   6 +
 tools/perf/util/intel-pt.c                         |  67 ++-
 tools/perf/util/intel-pt.h                         |   5 +
 tools/perf/util/ordered-events.c                   |   3 +
 tools/perf/util/probe-event.c                      | 152 +++++-
 tools/perf/util/probe-event.h                      |   3 +
 tools/perf/util/probe-finder.c                     |  21 +-
 tools/perf/util/symbol.c                           |  10 +
 22 files changed, 1404 insertions(+), 93 deletions(-)
 create mode 100644 tools/perf/util/intel-pt-decoder/inat_types.h

[GIT PULL 00/16] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit 6645f3187f5beb64f7a40515cfa18f3889264ece:

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

are available in the git repository at:


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

for you to fetch changes up to d083e5ff09eccc0afd44e02ec85f10c06271e93b:

  perf tools: Merge all perf_event_attr print functions (2015-04-07 13:25:05 -0300)

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

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

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

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

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

Infrastructure:

- Honor operator priority in libtraceevent (Namhyung Kim)

- Merge all perf_event_attr print functions (Peter Zijlstra)

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

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

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

----------------------------------------------------------------
Arnaldo Carvalho de Melo (1):
      perf top: Consider PERF_RECORD_ events with cpumode == 0

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

Jiri Olsa (1):
      perf kmem: Respect -i option

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

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

Wang Nan (1):
      perf kmaps: Check kmaps to make code more robust

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

 tools/lib/traceevent/event-parse.c       |  17 +-
 tools/perf/Documentation/perf-record.txt |   7 +
 tools/perf/builtin-kmem.c                |   3 +-
 tools/perf/builtin-record.c              |  80 ++++++++
 tools/perf/builtin-sched.c               |  67 +++++--
 tools/perf/builtin-top.c                 |   8 +-
 tools/perf/perf.h                        |   2 +
 tools/perf/util/evlist.c                 |   2 +-
 tools/perf/util/evsel.c                  | 325 ++++++++++++++++---------------
 tools/perf/util/evsel.h                  |   6 +
 tools/perf/util/header.c                 |  28 +--
 tools/perf/util/machine.c                |   5 +-
 tools/perf/util/map.c                    |  20 ++
 tools/perf/util/map.h                    |   6 +-
 tools/perf/util/probe-event.c            |   2 +
 tools/perf/util/session.c                |   3 +
 tools/perf/util/symbol-elf.c             |  16 +-
 tools/perf/util/symbol.c                 |  34 +++-
 18 files changed, 422 insertions(+), 209 deletions(-)

Re: [GIT PULL 00/16] 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 2565711fb7d7c28e0cd93c8971b520d1b10b857c:
> 
>   perf: Improve the perf_sample_data struct layout (2014-11-16 11:42:04 +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
> 
> for you to fetch changes up to a84808083688d82d7f1e5786ccf5df0ff7d448cb:
> 
>   perf tools: Only override the default :tid comm entry (2014-11-19 12:37:26 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible fixes:
> 
> - Fallback to kallsyms when using the minimal 'ELF' loader (Arnaldo Carvalho de Melo)
> 
> - Fix annotation with kcore (Adrian Hunter)
> 
> - Fix up srcline histogram key formatting (Arnaldo Carvalho de Melo)
> 
> - Add missing handler for PERF_RECORD_MMAP2 events in 'perf diff' (Kan Liang)
> 
> User visible changes/new features:
> 
> - Only print base source file for srcline histogram sort key (Andi Kleen)
> 
> - Support source line numbers in annotate using a hotkey (Andi Kleen)
> 
> Infrastructure:
> 
> - Do not poll events that use the system_wide flag (Adrian Hunter)
> 
> - Add perf-read-vdso32 and perf-read-vdsox32 to .gitignore (Adrian Hunter)
> 
>   perf tools: Only override the default :tid comm entry (Adrian Hunter)
> 
> - Factor out adding new call chain entries (Andi Kleen)
> 
> - Use al.addr to set up call chain (Andi Kleen)
> 
> - Use a common function to resolve symbol or name (Andi Kleen)
> 
> - Fix ftrace:function event recording (Jiri Olsa)
> 
> - Move disable_buildid_cache() to util/build-id.c (Namhyung Kim)
> 
> - Clean up libelf feature support code (Namhyung Kim)
> 
> - fix typo in python 'perf test' (WANG Chao)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Adrian Hunter (4):
>       perf tools: Fix annotation with kcore
>       perf evlist: Do not poll events that use the system_wide flag
>       perf tools: Add perf-read-vdso32 and perf-read-vdsox32 to .gitignore
>       perf tools: Only override the default :tid comm entry
> 
> Andi Kleen (5):
>       perf callchain: Factor out adding new call chain entries
>       perf callchain: Use al.addr to set up call chain
>       perf callchain: Use a common function to resolve symbol or name
>       perf tools: Only print base source file for srcline
>       perf annotate: Support source line numbers in annotate
> 
> Arnaldo Carvalho de Melo (2):
>       perf symbols: Fallback to kallsyms when using the minimal 'ELF' loader
>       perf hists: Fix up srcline histogram key formatting
> 
> Jiri Olsa (1):
>       perf evsel: Fix ftrace:function event recording
> 
> Kan Liang (1):
>       perf diff: Add missing handler for PERF_RECORD_MMAP2 events
> 
> Namhyung Kim (2):
>       perf build-id: Move disable_buildid_cache() to util/build-id.c
>       perf tools: Clean up libelf feature support code
> 
> WANG Chao (1):
>       perf test: fix typo in python test
> 
>  tools/perf/.gitignore             |  2 ++
>  tools/perf/Makefile.perf          |  2 --
>  tools/perf/builtin-diff.c         |  1 +
>  tools/perf/config/Makefile        |  5 ++--
>  tools/perf/tests/builtin-test.c   |  2 +-
>  tools/perf/ui/browsers/annotate.c | 13 +++++++++-
>  tools/perf/ui/browsers/hists.c    | 17 -------------
>  tools/perf/ui/gtk/hists.c         | 11 +--------
>  tools/perf/ui/stdio/hist.c        | 23 +++++++-----------
>  tools/perf/util/annotate.c        | 32 ++++++++++++++++++++----
>  tools/perf/util/annotate.h        |  1 +
>  tools/perf/util/build-id.c        | 11 +++++++++
>  tools/perf/util/build-id.h        |  1 +
>  tools/perf/util/callchain.c       | 19 +++++++++++++++
>  tools/perf/util/callchain.h       |  3 +++
>  tools/perf/util/evlist.c          | 10 +++++++-
>  tools/perf/util/evsel.c           |  8 ++++++
>  tools/perf/util/header.c          | 10 +-------
>  tools/perf/util/machine.c         | 51 ++++++++++++++++++++++++---------------
>  tools/perf/util/sort.c            |  2 +-
>  tools/perf/util/srcline.c         |  2 +-
>  tools/perf/util/symbol-minimal.c  |  1 -
>  tools/perf/util/thread.c          |  5 ++--
>  tools/perf/util/util.h            |  1 -
>  24 files changed, 145 insertions(+), 88 deletions(-)

Pulled into tip:perf/core, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/16] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit 2565711fb7d7c28e0cd93c8971b520d1b10b857c:

  perf: Improve the perf_sample_data struct layout (2014-11-16 11:42:04 +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

for you to fetch changes up to a84808083688d82d7f1e5786ccf5df0ff7d448cb:

  perf tools: Only override the default :tid comm entry (2014-11-19 12:37:26 -0300)

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

User visible fixes:

- Fallback to kallsyms when using the minimal 'ELF' loader (Arnaldo Carvalho de Melo)

- Fix annotation with kcore (Adrian Hunter)

- Fix up srcline histogram key formatting (Arnaldo Carvalho de Melo)

- Add missing handler for PERF_RECORD_MMAP2 events in 'perf diff' (Kan Liang)

User visible changes/new features:

- Only print base source file for srcline histogram sort key (Andi Kleen)

- Support source line numbers in annotate using a hotkey (Andi Kleen)

Infrastructure:

- Do not poll events that use the system_wide flag (Adrian Hunter)

- Add perf-read-vdso32 and perf-read-vdsox32 to .gitignore (Adrian Hunter)

  perf tools: Only override the default :tid comm entry (Adrian Hunter)

- Factor out adding new call chain entries (Andi Kleen)

- Use al.addr to set up call chain (Andi Kleen)

- Use a common function to resolve symbol or name (Andi Kleen)

- Fix ftrace:function event recording (Jiri Olsa)

- Move disable_buildid_cache() to util/build-id.c (Namhyung Kim)

- Clean up libelf feature support code (Namhyung Kim)

- fix typo in python 'perf test' (WANG Chao)

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

----------------------------------------------------------------
Adrian Hunter (4):
      perf tools: Fix annotation with kcore
      perf evlist: Do not poll events that use the system_wide flag
      perf tools: Add perf-read-vdso32 and perf-read-vdsox32 to .gitignore
      perf tools: Only override the default :tid comm entry

Andi Kleen (5):
      perf callchain: Factor out adding new call chain entries
      perf callchain: Use al.addr to set up call chain
      perf callchain: Use a common function to resolve symbol or name
      perf tools: Only print base source file for srcline
      perf annotate: Support source line numbers in annotate

Arnaldo Carvalho de Melo (2):
      perf symbols: Fallback to kallsyms when using the minimal 'ELF' loader
      perf hists: Fix up srcline histogram key formatting

Jiri Olsa (1):
      perf evsel: Fix ftrace:function event recording

Kan Liang (1):
      perf diff: Add missing handler for PERF_RECORD_MMAP2 events

Namhyung Kim (2):
      perf build-id: Move disable_buildid_cache() to util/build-id.c
      perf tools: Clean up libelf feature support code

WANG Chao (1):
      perf test: fix typo in python test

 tools/perf/.gitignore             |  2 ++
 tools/perf/Makefile.perf          |  2 --
 tools/perf/builtin-diff.c         |  1 +
 tools/perf/config/Makefile        |  5 ++--
 tools/perf/tests/builtin-test.c   |  2 +-
 tools/perf/ui/browsers/annotate.c | 13 +++++++++-
 tools/perf/ui/browsers/hists.c    | 17 -------------
 tools/perf/ui/gtk/hists.c         | 11 +--------
 tools/perf/ui/stdio/hist.c        | 23 +++++++-----------
 tools/perf/util/annotate.c        | 32 ++++++++++++++++++++----
 tools/perf/util/annotate.h        |  1 +
 tools/perf/util/build-id.c        | 11 +++++++++
 tools/perf/util/build-id.h        |  1 +
 tools/perf/util/callchain.c       | 19 +++++++++++++++
 tools/perf/util/callchain.h       |  3 +++
 tools/perf/util/evlist.c          | 10 +++++++-
 tools/perf/util/evsel.c           |  8 ++++++
 tools/perf/util/header.c          | 10 +-------
 tools/perf/util/machine.c         | 51 ++++++++++++++++++++++++---------------
 tools/perf/util/sort.c            |  2 +-
 tools/perf/util/srcline.c         |  2 +-
 tools/perf/util/symbol-minimal.c  |  1 -
 tools/perf/util/thread.c          |  5 ++--
 tools/perf/util/util.h            |  1 -
 24 files changed, 145 insertions(+), 88 deletions(-)

Re: [GIT PULL 00/16] perf/core improvements and fixes

[Ingo Molnar]

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

> Em Sun, Aug 24, 2014 at 12:11:24PM +0200, Ingo Molnar escreveu:
> > * Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
> > > o Kernel fix to properly handle exited tasks, by returning POLLHUP values
> > >   on perf event file descriptors. Tooling changes will come next, but were
> > >   tested with this kernel fix. (Jiri Olsa)
>  
> > So the signoffs are really weird (and invalid) here:
>  
> > commit ce1d77c667e40631d6673717e65e72f72265bf10
> > Author: Jiri Olsa <jolsa@kernel.org>
> > Date:   Fri Aug 15 16:24:45 2014 -0300
>  
> >     perf top: Use set_term_quiet() instead of open coded equivalent
>  
> > ...    
> >     Cc: Jiri Olsa <jolsa@kernel.org>
> >     Cc: Namhyung Kim <namhyung@kernel.org>
> >     Cc: Paul Mackerras <paulus@samba.org>
> >     Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
> >     Link: http://lkml.kernel.org/n/tip-h7n9te70flmaqfnj6l06ay6r@git.kernel.org
> >     [ Yanked this out of a patch containing this and some other change ]
> >     Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
>  
> > and in 7713886adc15 and f017bf0a8d92 - results of a rebase gone wrong?
> 
> Should be ok now, I recreated the perf-core-for-mingo signed tag, please
> let me know if there are still any problems,

Looks good now. Pulled, thanks a lot Arnaldo!

	Ingo

Re: [GIT PULL 00/16] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Em Sun, Aug 24, 2014 at 12:11:24PM +0200, Ingo Molnar escreveu:
> * Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
> > o Kernel fix to properly handle exited tasks, by returning POLLHUP values
> >   on perf event file descriptors. Tooling changes will come next, but were
> >   tested with this kernel fix. (Jiri Olsa)
 
> So the signoffs are really weird (and invalid) here:
 
> commit ce1d77c667e40631d6673717e65e72f72265bf10
> Author: Jiri Olsa <jolsa@kernel.org>
> Date:   Fri Aug 15 16:24:45 2014 -0300
 
>     perf top: Use set_term_quiet() instead of open coded equivalent
 
> ...    
>     Cc: Jiri Olsa <jolsa@kernel.org>
>     Cc: Namhyung Kim <namhyung@kernel.org>
>     Cc: Paul Mackerras <paulus@samba.org>
>     Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
>     Link: http://lkml.kernel.org/n/tip-h7n9te70flmaqfnj6l06ay6r@git.kernel.org
>     [ Yanked this out of a patch containing this and some other change ]
>     Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 
> and in 7713886adc15 and f017bf0a8d92 - results of a rebase gone wrong?

Should be ok now, I recreated the perf-core-for-mingo signed tag, please
let me know if there are still any problems,

Thanks!

- Arnaldo

Re: [GIT PULL 00/16] 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 af924aa35129edf338ebc8da6a4eae08cf7cb297:
> 
>   Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2014-08-18 10:14:43 +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
> 
> for you to fetch changes up to 141da74d2eff8de134c5a5ffaf2800a8a1b27517:
> 
>   perf hists browser: Consolidate callchain print functions in TUI (2014-08-22 13:12:15 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible:
> 
> o Don't try to find DSOs in SYSV maps (Don Zickus)
> 
> o Fallback to MAP__FUNCTION if daddr maps are NULL,
>   i.e. addresses get looked upon more maps (Don Zickus)
> 
> o Kernel fix to properly handle exited tasks, by returning POLLHUP values
>   on perf event file descriptors. Tooling changes will come next, but were
>   tested with this kernel fix. (Jiri Olsa)

So the signoffs are really weird (and invalid) here:

commit ce1d77c667e40631d6673717e65e72f72265bf10
Author: Jiri Olsa <jolsa@kernel.org>
Date:   Fri Aug 15 16:24:45 2014 -0300

    perf top: Use set_term_quiet() instead of open coded equivalent

...    
    Cc: Jiri Olsa <jolsa@kernel.org>
    Cc: Namhyung Kim <namhyung@kernel.org>
    Cc: Paul Mackerras <paulus@samba.org>
    Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
    Link: http://lkml.kernel.org/n/tip-h7n9te70flmaqfnj6l06ay6r@git.kernel.org
    [ Yanked this out of a patch containing this and some other change ]
    Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>


and in 7713886adc15 and f017bf0a8d92 - results of a rebase gone wrong?

Thanks,

	Ingo

[GIT PULL 00/16] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit af924aa35129edf338ebc8da6a4eae08cf7cb297:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2014-08-18 10:14:43 +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

for you to fetch changes up to 141da74d2eff8de134c5a5ffaf2800a8a1b27517:

  perf hists browser: Consolidate callchain print functions in TUI (2014-08-22 13:12:15 -0300)

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

User visible:

o Don't try to find DSOs in SYSV maps (Don Zickus)

o Fallback to MAP__FUNCTION if daddr maps are NULL,
  i.e. addresses get looked upon more maps (Don Zickus)

o Kernel fix to properly handle exited tasks, by returning POLLHUP values
  on perf event file descriptors. Tooling changes will come next, but were
  tested with this kernel fix. (Jiri Olsa)

o Add +field argument support for --field option, so that one can add
  fields to the default list of fields to show, i.e. now one can just do:

   perf report --fields +pid

  And the pid will appear in addition to the default fields. (Jiri Olsa)

Developer stuff:

o More Intel PT prep stuff, including:
  - Add a 'perf test' for tracking with sched_switch
  - Add 'flush' callback to scripting API

o hists browser (used in top and report) refactorings, getting rid of unused
  variables and reducing source code size by handling similar cases in a
  fewer functions (Namhyung Kim).

o Explicitly include util/debug.h for powerpc, was being indirectly included,
  broke the build when some change made it stop being included. (Sukadev
  Bhattiprolu)

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

----------------------------------------------------------------
Adrian Hunter (4):
      perf tests: Add a test for tracking with sched_switch
      perf scripting: Add 'flush' callback to scripting API
      perf machine: Rename machine__get_kernel_start_addr() method
      perf tools: Add machine__kernel_ip()

Don Zickus (2):
      perf symbols: Don't try to find DSOs in SYSV maps
      perf machine: Fallback to MAP__FUNCTION if daddr maps are NULL

Jiri Olsa (4):
      perf: Fix perf_poll to return proper POLLHUP value
      perf: Add PERF_EVENT_STATE_EXIT state for events with exited task
      perf top: Use set_term_quiet() instead of open coded equivalent
      perf tools: Add +field argument support for --field option

Namhyung Kim (5):
      perf hists browser: Get rid of unused 'remaining' variable
      perf hists browser: Fix children overhead dump
      perf hists browser: Factor out hist_browser__show_callchain_entry()
      perf hists browser: Cleanup callchain print functions
      perf hists browser: Consolidate callchain print functions in TUI

Sukadev Bhattiprolu (1):
      perf tools powerpc: Explicitly include util/debug.h

 include/linux/perf_event.h                         |   1 +
 kernel/events/core.c                               |  12 +-
 tools/perf/Makefile.perf                           |   1 +
 tools/perf/arch/powerpc/util/skip-callchain-idx.c  |   1 +
 tools/perf/builtin-script.c                        |  13 +
 tools/perf/builtin-top.c                           |   9 +-
 tools/perf/tests/builtin-test.c                    |   4 +
 tools/perf/tests/switch-tracking.c                 | 572 +++++++++++++++++++++
 tools/perf/tests/tests.h                           |   1 +
 tools/perf/ui/browsers/hists.c                     | 343 +++++-------
 tools/perf/ui/hist.c                               |   6 +-
 tools/perf/util/event.c                            |   6 +-
 tools/perf/util/machine.c                          |  41 +-
 tools/perf/util/machine.h                          |  17 +
 tools/perf/util/map.c                              |   1 +
 .../perf/util/scripting-engines/trace-event-perl.c |   6 +
 .../util/scripting-engines/trace-event-python.c    |   6 +
 tools/perf/util/sort.c                             |  24 +-
 tools/perf/util/sort.h                             |   1 +
 tools/perf/util/trace-event-scripting.c            |   7 +
 tools/perf/util/trace-event.h                      |   1 +
 21 files changed, 827 insertions(+), 246 deletions(-)
 create mode 100644 tools/perf/tests/switch-tracking.c

Re: [GIT PULL 00/16] perf/core improvements and fixes

[Ingo Molnar]

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

> From: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
> 
> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> The following changes since commit 81827ed8d85e892311965dc9ec4120b2b2e745bd:
> 
>   perf/x86/uncore: Fix missing end markers for SNB/IVB/HSW IMC PMU (2014-03-14 09:25:25 +0100)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux tags/perf-core-for-mingo
> 
> for you to fetch changes up to d75e6097ef1f7669deb500fbbdf53cfe524f1b53:
> 
>   perf machine: Factor machine__find_thread to take tid argument (2014-03-14 18:08:42 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible:
> 
> . Add several futex 'perf bench' microbenchmarks (Davidlohr Bueso)
> 
> . Speed up thread map generation (Don Zickus)
> 
> . Fix synthesizing mmaps for threads (Don Zickus)
> 
> . Fix invalid output on event group stdio report  (Namhyung Kim)
> 
> . Introduce 'perf kvm --list-cmds' command line option for use by
>   scripts (Ramkumar Ramachandra)
> 
> Documentation:
> 
> . Clarify load-latency information in the 'perf mem' docs (Andi Kleen)
> 
> . Clarify x86 register naming in 'perf probe' docs (Andi Kleen)
> 
> Refactorigns:
> 
> . hists browser refactorings to reuse code accross UIs (Namhyung Kim)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Andi Kleen (2):
>       perf mem: Clarify load-latency in documentation
>       perf probe: Clarify x86 register naming for perf probe
> 
> Arnaldo Carvalho de Melo (1):
>       perf symbols: Introduce thread__find_cpumode_addr_location
> 
> Davidlohr Bueso (3):
>       perf bench: Add futex-hash microbenchmark
>       perf bench: Add futex-wake microbenchmark
>       perf bench: Add futex-requeue microbenchmark
> 
> Don Zickus (3):
>       perf tools: Fix synthesizing mmaps for threads
>       perf session: Change header.misc dump from decimal to hex
>       perf tools: Speed up thread map generation
> 
> Jiri Olsa (1):
>       perf machine: Factor machine__find_thread to take tid argument
> 
> Namhyung Kim (5):
>       perf ui/stdio: Fix invalid output on event group report
>       perf ui/gtk: Reuse generic __hpp__fmt() code
>       perf ui/hists: Pass struct hpp to print functions
>       perf ui/tui: Reuse generic __hpp__fmt() code
>       perf ui hists: Pass evsel to hpp->header/width functions explicitly
> 
> Ramkumar Ramachandra (1):
>       perf kvm: introduce --list-cmds for use by scripts
> 
>  tools/perf/Documentation/perf-mem.txt   |   4 +
>  tools/perf/Documentation/perf-probe.txt |   2 +
>  tools/perf/Makefile.perf                |   3 +
>  tools/perf/bench/bench.h                |   3 +
>  tools/perf/bench/futex-hash.c           | 212 ++++++++++++++++++++++++++++++++
>  tools/perf/bench/futex-requeue.c        | 211 +++++++++++++++++++++++++++++++
>  tools/perf/bench/futex-wake.c           | 201 ++++++++++++++++++++++++++++++
>  tools/perf/bench/futex.h                |  71 +++++++++++
>  tools/perf/builtin-bench.c              |  12 +-
>  tools/perf/builtin-diff.c               |   7 +-
>  tools/perf/builtin-kvm.c                |  12 +-
>  tools/perf/perf-completion.sh           |   2 +-
>  tools/perf/perf.h                       |   6 +
>  tools/perf/tests/dwarf-unwind.c         |   2 +-
>  tools/perf/ui/browsers/hists.c          | 122 ++++++------------
>  tools/perf/ui/gtk/hists.c               |  78 ++----------
>  tools/perf/ui/hist.c                    | 138 +++++++++++++++------
>  tools/perf/ui/stdio/hist.c              |  11 +-
>  tools/perf/util/event.c                 | 156 ++++++++++++++---------
>  tools/perf/util/hist.h                  |  20 ++-
>  tools/perf/util/machine.c               |  46 +++----
>  tools/perf/util/machine.h               |   3 +-
>  tools/perf/util/parse-options.c         |  37 +++++-
>  tools/perf/util/parse-options.h         |   8 +-
>  tools/perf/util/session.c               |   2 +-
>  tools/perf/util/thread.c                |  21 ++++
>  tools/perf/util/thread.h                |   5 +
>  27 files changed, 1094 insertions(+), 301 deletions(-)
>  create mode 100644 tools/perf/bench/futex-hash.c
>  create mode 100644 tools/perf/bench/futex-requeue.c
>  create mode 100644 tools/perf/bench/futex-wake.c
>  create mode 100644 tools/perf/bench/futex.h

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/16] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

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

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit 81827ed8d85e892311965dc9ec4120b2b2e745bd:

  perf/x86/uncore: Fix missing end markers for SNB/IVB/HSW IMC PMU (2014-03-14 09:25:25 +0100)

are available in the git repository at:

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

for you to fetch changes up to d75e6097ef1f7669deb500fbbdf53cfe524f1b53:

  perf machine: Factor machine__find_thread to take tid argument (2014-03-14 18:08:42 -0300)

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

User visible:

. Add several futex 'perf bench' microbenchmarks (Davidlohr Bueso)

. Speed up thread map generation (Don Zickus)

. Fix synthesizing mmaps for threads (Don Zickus)

. Fix invalid output on event group stdio report  (Namhyung Kim)

. Introduce 'perf kvm --list-cmds' command line option for use by
  scripts (Ramkumar Ramachandra)

Documentation:

. Clarify load-latency information in the 'perf mem' docs (Andi Kleen)

. Clarify x86 register naming in 'perf probe' docs (Andi Kleen)

Refactorigns:

. hists browser refactorings to reuse code accross UIs (Namhyung Kim)

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

----------------------------------------------------------------
Andi Kleen (2):
      perf mem: Clarify load-latency in documentation
      perf probe: Clarify x86 register naming for perf probe

Arnaldo Carvalho de Melo (1):
      perf symbols: Introduce thread__find_cpumode_addr_location

Davidlohr Bueso (3):
      perf bench: Add futex-hash microbenchmark
      perf bench: Add futex-wake microbenchmark
      perf bench: Add futex-requeue microbenchmark

Don Zickus (3):
      perf tools: Fix synthesizing mmaps for threads
      perf session: Change header.misc dump from decimal to hex
      perf tools: Speed up thread map generation

Jiri Olsa (1):
      perf machine: Factor machine__find_thread to take tid argument

Namhyung Kim (5):
      perf ui/stdio: Fix invalid output on event group report
      perf ui/gtk: Reuse generic __hpp__fmt() code
      perf ui/hists: Pass struct hpp to print functions
      perf ui/tui: Reuse generic __hpp__fmt() code
      perf ui hists: Pass evsel to hpp->header/width functions explicitly

Ramkumar Ramachandra (1):
      perf kvm: introduce --list-cmds for use by scripts

 tools/perf/Documentation/perf-mem.txt   |   4 +
 tools/perf/Documentation/perf-probe.txt |   2 +
 tools/perf/Makefile.perf                |   3 +
 tools/perf/bench/bench.h                |   3 +
 tools/perf/bench/futex-hash.c           | 212 ++++++++++++++++++++++++++++++++
 tools/perf/bench/futex-requeue.c        | 211 +++++++++++++++++++++++++++++++
 tools/perf/bench/futex-wake.c           | 201 ++++++++++++++++++++++++++++++
 tools/perf/bench/futex.h                |  71 +++++++++++
 tools/perf/builtin-bench.c              |  12 +-
 tools/perf/builtin-diff.c               |   7 +-
 tools/perf/builtin-kvm.c                |  12 +-
 tools/perf/perf-completion.sh           |   2 +-
 tools/perf/perf.h                       |   6 +
 tools/perf/tests/dwarf-unwind.c         |   2 +-
 tools/perf/ui/browsers/hists.c          | 122 ++++++------------
 tools/perf/ui/gtk/hists.c               |  78 ++----------
 tools/perf/ui/hist.c                    | 138 +++++++++++++++------
 tools/perf/ui/stdio/hist.c              |  11 +-
 tools/perf/util/event.c                 | 156 ++++++++++++++---------
 tools/perf/util/hist.h                  |  20 ++-
 tools/perf/util/machine.c               |  46 +++----
 tools/perf/util/machine.h               |   3 +-
 tools/perf/util/parse-options.c         |  37 +++++-
 tools/perf/util/parse-options.h         |   8 +-
 tools/perf/util/session.c               |   2 +-
 tools/perf/util/thread.c                |  21 ++++
 tools/perf/util/thread.h                |   5 +
 27 files changed, 1094 insertions(+), 301 deletions(-)
 create mode 100644 tools/perf/bench/futex-hash.c
 create mode 100644 tools/perf/bench/futex-requeue.c
 create mode 100644 tools/perf/bench/futex-wake.c
 create mode 100644 tools/perf/bench/futex.h

[GIT PULL 00/16] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

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

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit 89b4be142bf2491a94af325f5206fc2f2aa18960:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent (2013-11-15 07:35:50 +0100)

are available in the git repository at:


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

for you to fetch changes up to b4070e339cd39e4b56604eddc3e93ee355027d45:

  tools lib traceevent: Fix use of multiple options in processing field (2013-11-18 17:09:51 -0300)

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

. Make per-cpu mmaps the default, having inheritance turned on for
  all targets but --tid/-t. From Adrian Hunter.

. Make 'perf top -g' refer to callchains, not --groups, to be consistent
  with 'perf record -g'. From David Ahern.

. Tag thread comm as overriden, fix from Frederic Weisbecker.

. Fix bogus group name when processing the perf.data file header, from Namhyung Kim.

. Fix possible memory leaks in process_group_desc(), from Namhyung Kim.

. Remove 'perf trace' thread summary coloring, from Pekka Enberg.

. Generalize the bash completion scripts and make it work with zsh too, from
  Ramkumar Ramachandra.

. Fix use of multiple options in processing field in libtraceevent, from Steven Rostedt.

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

----------------------------------------------------------------
Adrian Hunter (4):
      perf record: Make per-cpu mmaps the default.
      perf tools: Allow '--inherit' as the negation of '--no-inherit'
      perf tools: Add option macro OPT_BOOLEAN_SET
      perf record: Default -t option to no inheritance

David Ahern (1):
      perf top: Make -g refer to callchains

Frederic Weisbecker (1):
      perf tools: Tag thread comm as overriden

Namhyung Kim (3):
      perf header: Fix bogus group name
      perf header: Fix possible memory leaks in process_group_desc()
      perf script: Move evname print code to process_event()

Pekka Enberg (1):
      perf trace: Remove thread summary coloring

Ramkumar Ramachandra (5):
      perf completion: introduce a layer of indirection
      perf completion: factor out compgen stuff
      perf completion: factor out call to __ltrim_colon_completions
      perf completion: introduce zsh support
      perf completion: rename file to reflect zsh support

Steven Rostedt (1):
      tools lib traceevent: Fix use of multiple options in processing field

 tools/lib/traceevent/event-parse.c                 |  23 ++++-
 tools/perf/Documentation/perf-record.txt           |  12 +--
 tools/perf/Documentation/perf-top.txt              |   5 +-
 tools/perf/Makefile.perf                           |   4 +-
 tools/perf/builtin-record.c                        |  13 ++-
 tools/perf/builtin-script.c                        |  11 ++-
 tools/perf/builtin-top.c                           |   4 +-
 tools/perf/builtin-trace.c                         |  13 +--
 tools/perf/{bash_completion => perf-completion.sh} | 100 ++++++++++++++++++---
 tools/perf/perf.h                                  |   1 +
 tools/perf/tests/attr/test-record-no-inherit       |   2 +-
 tools/perf/util/evlist.c                           |   6 +-
 tools/perf/util/evsel.c                            |   5 +-
 tools/perf/util/header.c                           |   6 +-
 tools/perf/util/parse-options.c                    |  21 +++++
 tools/perf/util/parse-options.h                    |   8 ++
 tools/perf/util/target.c                           |  11 ++-
 tools/perf/util/target.h                           |   4 +-
 tools/perf/util/thread.c                           |  11 ++-
 19 files changed, 198 insertions(+), 62 deletions(-)
 rename tools/perf/{bash_completion => perf-completion.sh} (65%)

Re: [GIT PULL 00/16] perf/core improvements and fixes

[Ingo Molnar]

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

> From: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
> 
> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> The following changes since commit aa30a2e03a453aad9fd96c3f2d4a82c3497674e5:
> 
>   Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2013-10-23 09:45:50 +0200)
> 
> are available in the git repository at:
> 
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux tags/perf-core-for-mingo
> 
> for you to fetch changes up to c1fb5651bb40f9efaf32d280f39e06df7e352673:
> 
>   perf tools: Show progress on histogram collapsing (2013-10-23 15:48:24 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> . Show progress on histogram collapsing, that can take a long time, from
>   Namhyung Kim.
> 
> . Support "$vars" meta argument syntax for local variables, allowing
>   asking for all possible variables at a given probe point to be
>   collected when it hits, from Masami Hiramatsu.
> 
> . Address the root cause of that 'perf sched' stack initialization build
>   slowdown, by programmatically setting a big array after moving the
>   global variable back to the stack. Fix from Adrian Hunter.
> 
> . Do not repipe attributes to a perf.data file in 'perf inject',
>   fix from Adrian Hunter
> 
> . Change the procps visible command-name of invididual benchmark tests
>   plus cleanups, from Ingo Molnar.
> 
> . Do not accept parse_tag_value() overflow, fix from Adrian Hunter.
> 
> . Validate that mmap_pages is not too big. From Adrian Hunter.
> 
> . Fix non-debug build, from Adrian Hunter
> 
> . Clarify the "sample parsing" test entry.
> 
> . Consider PERF_SAMPLE_TRANSACTION in the "sample parsing" test.
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Adrian Hunter (7):
>       perf sched: Make struct perf_sched sched a local variable
>       perf sched: Optimize build time
>       perf script: Make perf_script a local variable
>       perf inject: Do not repipe attributes to a perf.data file
>       perf tools: Do not accept parse_tag_value() overflow
>       perf evlist: Validate that mmap_pages is not too big
>       perf tools: Fix non-debug build
> 
> Arnaldo Carvalho de Melo (5):
>       perf test: Clarify the "sample parsing" test entry
>       perf test: Consider PERF_SAMPLE_TRANSACTION in the "sample parsing" test
>       perf tools: Stop using 'self' in some more places
>       perf ui: Rename ui_progress to ui_progress_ops
>       perf ui progress: Per progress bar state
> 
> Ingo Molnar (1):
>       perf bench: Change the procps visible command-name of invididual benchmark tests plus cleanups
> 
> Masami Hiramatsu (2):
>       perf probe: Support "$vars" meta argument syntax for local variables
>       perf probe: Find fentry mcount fuzzed parameter location
> 
> Namhyung Kim (1):
>       perf tools: Show progress on histogram collapsing
> 
>  tools/perf/Makefile.perf          |   1 +
>  tools/perf/builtin-annotate.c     |   6 +-
>  tools/perf/builtin-bench.c        | 239 +++++++++++++++++++-------------------
>  tools/perf/builtin-diff.c         |   7 +-
>  tools/perf/builtin-inject.c       |  27 +++--
>  tools/perf/builtin-report.c       |  24 ++--
>  tools/perf/builtin-sched.c        |  44 +++----
>  tools/perf/builtin-script.c       |  40 ++++---
>  tools/perf/builtin-top.c          |   4 +-
>  tools/perf/config/Makefile        |   4 +
>  tools/perf/tests/hists_link.c     |   2 +-
>  tools/perf/tests/sample-parsing.c |   4 +-
>  tools/perf/ui/gtk/gtk.h           |   2 +-
>  tools/perf/ui/gtk/progress.c      |  20 ++--
>  tools/perf/ui/gtk/setup.c         |   2 +-
>  tools/perf/ui/progress.c          |  32 +++--
>  tools/perf/ui/progress.h          |  19 +--
>  tools/perf/ui/tui/progress.c      |  15 +--
>  tools/perf/ui/tui/setup.c         |   3 +-
>  tools/perf/ui/tui/tui.h           |   6 +
>  tools/perf/util/build-id.c        |   6 +-
>  tools/perf/util/evlist.c          |  14 ++-
>  tools/perf/util/hist.c            |  23 ++--
>  tools/perf/util/hist.h            |   3 +-
>  tools/perf/util/probe-event.c     |   1 -
>  tools/perf/util/probe-finder.c    | 133 ++++++++++++++++++---
>  tools/perf/util/probe-finder.h    |   1 +
>  tools/perf/util/session.c         |  24 ++--
>  tools/perf/util/sort.c            | 124 ++++++++++----------
>  tools/perf/util/strfilter.c       |  46 ++++----
>  tools/perf/util/thread.c          |  72 ++++++------
>  tools/perf/util/util.c            |   2 +
>  32 files changed, 560 insertions(+), 390 deletions(-)
>  create mode 100644 tools/perf/ui/tui/tui.h

Pulled, thanks Arnaldo!

	Ingo

[GIT PULL 00/16] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

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

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit aa30a2e03a453aad9fd96c3f2d4a82c3497674e5:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2013-10-23 09:45:50 +0200)

are available in the git repository at:


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

for you to fetch changes up to c1fb5651bb40f9efaf32d280f39e06df7e352673:

  perf tools: Show progress on histogram collapsing (2013-10-23 15:48:24 -0300)

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

. Show progress on histogram collapsing, that can take a long time, from
  Namhyung Kim.

. Support "$vars" meta argument syntax for local variables, allowing
  asking for all possible variables at a given probe point to be
  collected when it hits, from Masami Hiramatsu.

. Address the root cause of that 'perf sched' stack initialization build
  slowdown, by programmatically setting a big array after moving the
  global variable back to the stack. Fix from Adrian Hunter.

. Do not repipe attributes to a perf.data file in 'perf inject',
  fix from Adrian Hunter

. Change the procps visible command-name of invididual benchmark tests
  plus cleanups, from Ingo Molnar.

. Do not accept parse_tag_value() overflow, fix from Adrian Hunter.

. Validate that mmap_pages is not too big. From Adrian Hunter.

. Fix non-debug build, from Adrian Hunter

. Clarify the "sample parsing" test entry.

. Consider PERF_SAMPLE_TRANSACTION in the "sample parsing" test.

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

----------------------------------------------------------------
Adrian Hunter (7):
      perf sched: Make struct perf_sched sched a local variable
      perf sched: Optimize build time
      perf script: Make perf_script a local variable
      perf inject: Do not repipe attributes to a perf.data file
      perf tools: Do not accept parse_tag_value() overflow
      perf evlist: Validate that mmap_pages is not too big
      perf tools: Fix non-debug build

Arnaldo Carvalho de Melo (5):
      perf test: Clarify the "sample parsing" test entry
      perf test: Consider PERF_SAMPLE_TRANSACTION in the "sample parsing" test
      perf tools: Stop using 'self' in some more places
      perf ui: Rename ui_progress to ui_progress_ops
      perf ui progress: Per progress bar state

Ingo Molnar (1):
      perf bench: Change the procps visible command-name of invididual benchmark tests plus cleanups

Masami Hiramatsu (2):
      perf probe: Support "$vars" meta argument syntax for local variables
      perf probe: Find fentry mcount fuzzed parameter location

Namhyung Kim (1):
      perf tools: Show progress on histogram collapsing

 tools/perf/Makefile.perf          |   1 +
 tools/perf/builtin-annotate.c     |   6 +-
 tools/perf/builtin-bench.c        | 239 +++++++++++++++++++-------------------
 tools/perf/builtin-diff.c         |   7 +-
 tools/perf/builtin-inject.c       |  27 +++--
 tools/perf/builtin-report.c       |  24 ++--
 tools/perf/builtin-sched.c        |  44 +++----
 tools/perf/builtin-script.c       |  40 ++++---
 tools/perf/builtin-top.c          |   4 +-
 tools/perf/config/Makefile        |   4 +
 tools/perf/tests/hists_link.c     |   2 +-
 tools/perf/tests/sample-parsing.c |   4 +-
 tools/perf/ui/gtk/gtk.h           |   2 +-
 tools/perf/ui/gtk/progress.c      |  20 ++--
 tools/perf/ui/gtk/setup.c         |   2 +-
 tools/perf/ui/progress.c          |  32 +++--
 tools/perf/ui/progress.h          |  19 +--
 tools/perf/ui/tui/progress.c      |  15 +--
 tools/perf/ui/tui/setup.c         |   3 +-
 tools/perf/ui/tui/tui.h           |   6 +
 tools/perf/util/build-id.c        |   6 +-
 tools/perf/util/evlist.c          |  14 ++-
 tools/perf/util/hist.c            |  23 ++--
 tools/perf/util/hist.h            |   3 +-
 tools/perf/util/probe-event.c     |   1 -
 tools/perf/util/probe-finder.c    | 133 ++++++++++++++++++---
 tools/perf/util/probe-finder.h    |   1 +
 tools/perf/util/session.c         |  24 ++--
 tools/perf/util/sort.c            | 124 ++++++++++----------
 tools/perf/util/strfilter.c       |  46 ++++----
 tools/perf/util/thread.c          |  72 ++++++------
 tools/perf/util/util.c            |   2 +
 32 files changed, 560 insertions(+), 390 deletions(-)
 create mode 100644 tools/perf/ui/tui/tui.h

Re: [GIT PULL 00/16] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Em Tue, Feb 14, 2012 at 04:10:39PM +0100, Joerg Roedel escreveu:
> On Tue, Feb 14, 2012 at 12:38:53PM -0200, Arnaldo Carvalho de Melo wrote:
> >  	bool		   sample_id_all_avail;
> > +	bool		   exclude_guest_missing;
> >  	bool		   dump_symtab;
> >  	const char	   *cpu_list;
> >  	struct hist_entry  *sym_filter_entry;
> 
> I was about to prepare a similar patch :) But anyway, this one works
> too.
> 
> Tested-by: Joerg Roedel <joerg.roedel@amd.com>
> 
> (on 2.6.32)

thanks, I'm commiting it now after testing it on a 3.0-rt kernel,

- Arnaldo

Re: [GIT PULL 00/16] perf/core improvements and fixes

[Joerg Roedel]

On Tue, Feb 14, 2012 at 12:38:53PM -0200, Arnaldo Carvalho de Melo wrote:
> diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
> index 08ed24b..d6c10e8 100644
> --- a/tools/perf/builtin-record.c
> +++ b/tools/perf/builtin-record.c
> @@ -205,6 +205,9 @@ static void perf_record__open(struct perf_record *rec)
>  
>  		if (opts->group && pos != first)
>  			group_fd = first->fd;
> +fallback_missing_features:
> +		if (opts->exclude_guest_missing)
> +			attr->exclude_guest = attr->exclude_host = 0;
>  retry_sample_id:
>  		attr->sample_id_all = opts->sample_id_all_avail ? 1 : 0;
>  try_again:
> @@ -218,15 +221,23 @@ try_again:
>  			} else if (err ==  ENODEV && opts->cpu_list) {
>  				die("No such device - did you specify"
>  					" an out-of-range profile CPU?\n");
> -			} else if (err == EINVAL && opts->sample_id_all_avail) {
> -				/*
> -				 * Old kernel, no attr->sample_id_type_all field
> -				 */
> -				opts->sample_id_all_avail = false;
> -				if (!opts->sample_time && !opts->raw_samples && !time_needed)
> -					attr->sample_type &= ~PERF_SAMPLE_TIME;
> -
> -				goto retry_sample_id;
> +			} else if (err == EINVAL) {
> +				if (!opts->exclude_guest_missing &&
> +				    (attr->exclude_guest || attr->exclude_host)) {
> +					pr_debug("Old kernel, cannot exclude "
> +						 "guest or host samples.\n");
> +					opts->exclude_guest_missing = true;
> +					goto fallback_missing_features;
> +				} else if (opts->sample_id_all_avail) {
> +					/*
> +					 * Old kernel, no attr->sample_id_type_all field
> +					 */
> +					opts->sample_id_all_avail = false;
> +					if (!opts->sample_time && !opts->raw_samples && !time_needed)
> +						attr->sample_type &= ~PERF_SAMPLE_TIME;
> +
> +					goto retry_sample_id;
> +				}
>  			}
>  
>  			/*
> diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
> index 5a88c0d..02e11ff 100644
> --- a/tools/perf/builtin-top.c
> +++ b/tools/perf/builtin-top.c
> @@ -872,6 +872,9 @@ static void perf_top__start_counters(struct perf_top *top)
>  		attr->mmap = 1;
>  		attr->comm = 1;
>  		attr->inherit = top->inherit;
> +fallback_missing_features:
> +		if (top->exclude_guest_missing)
> +			attr->exclude_guest = attr->exclude_host = 0;
>  retry_sample_id:
>  		attr->sample_id_all = top->sample_id_all_avail ? 1 : 0;
>  try_again:
> @@ -883,12 +886,20 @@ try_again:
>  			if (err == EPERM || err == EACCES) {
>  				ui__error_paranoid();
>  				goto out_err;
> -			} else if (err == EINVAL && top->sample_id_all_avail) {
> -				/*
> -				 * Old kernel, no attr->sample_id_type_all field
> -				 */
> -				top->sample_id_all_avail = false;
> -				goto retry_sample_id;
> +			} else if (err == EINVAL) {
> +				if (!top->exclude_guest_missing &&
> +				    (attr->exclude_guest || attr->exclude_host)) {
> +					pr_debug("Old kernel, cannot exclude "
> +						 "guest or host samples.\n");
> +					top->exclude_guest_missing = true;
> +					goto fallback_missing_features;
> +				} else if (top->sample_id_all_avail) {
> +					/*
> +					 * Old kernel, no attr->sample_id_type_all field
> +					 */
> +					top->sample_id_all_avail = false;
> +					goto retry_sample_id;
> +				}
>  			}
>  			/*
>  			 * If it's cycles then fall back to hrtimer
> diff --git a/tools/perf/perf.h b/tools/perf/perf.h
> index 03a0456..8b9c436 100644
> --- a/tools/perf/perf.h
> +++ b/tools/perf/perf.h
> @@ -199,6 +199,7 @@ struct perf_record_opts {
>  	bool	     sample_address;
>  	bool	     sample_time;
>  	bool	     sample_id_all_avail;
> +	bool	     exclude_guest_missing;
>  	bool	     system_wide;
>  	bool	     period;
>  	unsigned int freq;
> diff --git a/tools/perf/util/top.h b/tools/perf/util/top.h
> index 49eb848..7dea891 100644
> --- a/tools/perf/util/top.h
> +++ b/tools/perf/util/top.h
> @@ -35,6 +35,7 @@ struct perf_top {
>  	bool		   inherit;
>  	bool		   group;
>  	bool		   sample_id_all_avail;
> +	bool		   exclude_guest_missing;
>  	bool		   dump_symtab;
>  	const char	   *cpu_list;
>  	struct hist_entry  *sym_filter_entry;

I was about to prepare a similar patch :) But anyway, this one works
too.

Tested-by: Joerg Roedel <joerg.roedel@amd.com>

(on 2.6.32)

-- 
AMD Operating System Research Center

Advanced Micro Devices GmbH Einsteinring 24 85609 Dornach
General Managers: Alberto Bozzo
Registration: Dornach, Landkr. Muenchen; Registerger. Muenchen, HRB Nr. 43632

Re: [GIT PULL 00/16] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Em Tue, Feb 14, 2012 at 11:10:46AM -0200, Arnaldo Carvalho de Melo escreveu:
> Em Tue, Feb 14, 2012 at 11:50:18AM +0100, Joerg Roedel escreveu:
> > On Mon, Feb 13, 2012 at 10:23:07PM -0700, David Ahern wrote:
> > > On 2/13/12 10:10 PM, Namhyung Kim wrote:
> > > >It happened because I used old kernel version that isn't aware of the
> > > >exclude_guest bit. So the check on attr->__reserved_1 in
> > > >core.c::perf_copy_attr() failed and then ended up seeing EINVAL at
> > > >perf_evsel__open().
> 
> > > comes back to 1aed2671738785e8f5aea663a6fda91aa7ef59b5 again. See
> 
> > > https://lkml.org/lkml/2012/2/8/234
> 
> > Grr. I totally forgot that issue. Is there some way to detect the perf
> > kernel-features? Otherwise the only fix seems to be to drop the patch
> > changing the default. The crashes should be fixed by the other patch
> > already.
> 
> Well, we need to detect it like we do with sample_id_all. In this case
> we would try with exclude_guest, if it fails with EINVAL, we realise it
> is not available, clean that bit and try again.

The following patch should fix it, still untested tho, booting a machine
with an < 3.1 kernel to check...

- Arnaldo

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 08ed24b..d6c10e8 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -205,6 +205,9 @@ static void perf_record__open(struct perf_record *rec)
 
 		if (opts->group && pos != first)
 			group_fd = first->fd;
+fallback_missing_features:
+		if (opts->exclude_guest_missing)
+			attr->exclude_guest = attr->exclude_host = 0;
 retry_sample_id:
 		attr->sample_id_all = opts->sample_id_all_avail ? 1 : 0;
 try_again:
@@ -218,15 +221,23 @@ try_again:
 			} else if (err ==  ENODEV && opts->cpu_list) {
 				die("No such device - did you specify"
 					" an out-of-range profile CPU?\n");
-			} else if (err == EINVAL && opts->sample_id_all_avail) {
-				/*
-				 * Old kernel, no attr->sample_id_type_all field
-				 */
-				opts->sample_id_all_avail = false;
-				if (!opts->sample_time && !opts->raw_samples && !time_needed)
-					attr->sample_type &= ~PERF_SAMPLE_TIME;
-
-				goto retry_sample_id;
+			} else if (err == EINVAL) {
+				if (!opts->exclude_guest_missing &&
+				    (attr->exclude_guest || attr->exclude_host)) {
+					pr_debug("Old kernel, cannot exclude "
+						 "guest or host samples.\n");
+					opts->exclude_guest_missing = true;
+					goto fallback_missing_features;
+				} else if (opts->sample_id_all_avail) {
+					/*
+					 * Old kernel, no attr->sample_id_type_all field
+					 */
+					opts->sample_id_all_avail = false;
+					if (!opts->sample_time && !opts->raw_samples && !time_needed)
+						attr->sample_type &= ~PERF_SAMPLE_TIME;
+
+					goto retry_sample_id;
+				}
 			}
 
 			/*
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 5a88c0d..02e11ff 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -872,6 +872,9 @@ static void perf_top__start_counters(struct perf_top *top)
 		attr->mmap = 1;
 		attr->comm = 1;
 		attr->inherit = top->inherit;
+fallback_missing_features:
+		if (top->exclude_guest_missing)
+			attr->exclude_guest = attr->exclude_host = 0;
 retry_sample_id:
 		attr->sample_id_all = top->sample_id_all_avail ? 1 : 0;
 try_again:
@@ -883,12 +886,20 @@ try_again:
 			if (err == EPERM || err == EACCES) {
 				ui__error_paranoid();
 				goto out_err;
-			} else if (err == EINVAL && top->sample_id_all_avail) {
-				/*
-				 * Old kernel, no attr->sample_id_type_all field
-				 */
-				top->sample_id_all_avail = false;
-				goto retry_sample_id;
+			} else if (err == EINVAL) {
+				if (!top->exclude_guest_missing &&
+				    (attr->exclude_guest || attr->exclude_host)) {
+					pr_debug("Old kernel, cannot exclude "
+						 "guest or host samples.\n");
+					top->exclude_guest_missing = true;
+					goto fallback_missing_features;
+				} else if (top->sample_id_all_avail) {
+					/*
+					 * Old kernel, no attr->sample_id_type_all field
+					 */
+					top->sample_id_all_avail = false;
+					goto retry_sample_id;
+				}
 			}
 			/*
 			 * If it's cycles then fall back to hrtimer
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index 03a0456..8b9c436 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -199,6 +199,7 @@ struct perf_record_opts {
 	bool	     sample_address;
 	bool	     sample_time;
 	bool	     sample_id_all_avail;
+	bool	     exclude_guest_missing;
 	bool	     system_wide;
 	bool	     period;
 	unsigned int freq;
diff --git a/tools/perf/util/top.h b/tools/perf/util/top.h
index 49eb848..7dea891 100644
--- a/tools/perf/util/top.h
+++ b/tools/perf/util/top.h
@@ -35,6 +35,7 @@ struct perf_top {
 	bool		   inherit;
 	bool		   group;
 	bool		   sample_id_all_avail;
+	bool		   exclude_guest_missing;
 	bool		   dump_symtab;
 	const char	   *cpu_list;
 	struct hist_entry  *sym_filter_entry;

Re: [GIT PULL 00/16] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Em Tue, Feb 14, 2012 at 11:50:18AM +0100, Joerg Roedel escreveu:
> On Mon, Feb 13, 2012 at 10:23:07PM -0700, David Ahern wrote:
> > On 2/13/12 10:10 PM, Namhyung Kim wrote:
> > >It happened because I used old kernel version that isn't aware of the
> > >exclude_guest bit. So the check on attr->__reserved_1 in
> > >core.c::perf_copy_attr() failed and then ended up seeing EINVAL at
> > >perf_evsel__open().

> > comes back to 1aed2671738785e8f5aea663a6fda91aa7ef59b5 again. See

> > https://lkml.org/lkml/2012/2/8/234

> Grr. I totally forgot that issue. Is there some way to detect the perf
> kernel-features? Otherwise the only fix seems to be to drop the patch
> changing the default. The crashes should be fixed by the other patch
> already.

Well, we need to detect it like we do with sample_id_all. In this case
we would try with exclude_guest, if it fails with EINVAL, we realise it
is not available, clean that bit and try again.

- Arnaldo

Re: [GIT PULL 00/16] perf/core improvements and fixes

[Joerg Roedel]

On Mon, Feb 13, 2012 at 10:23:07PM -0700, David Ahern wrote:
> On 2/13/12 10:10 PM, Namhyung Kim wrote:
> >>
> >
> >It happened because I used old kernel version that isn't aware of the
> >exclude_guest bit. So the check on attr->__reserved_1 in
> >core.c::perf_copy_attr() failed and then ended up seeing EINVAL at
> >perf_evsel__open().
> 
> comes back to 1aed2671738785e8f5aea663a6fda91aa7ef59b5 again. See
> 
> https://lkml.org/lkml/2012/2/8/234

Grr. I totally forgot that issue. Is there some way to detect the perf
kernel-features? Otherwise the only fix seems to be to drop the patch
changing the default. The crashes should be fixed by the other patch
already.


	Joerg

-- 
AMD Operating System Research Center

Advanced Micro Devices GmbH Einsteinring 24 85609 Dornach
General Managers: Alberto Bozzo
Registration: Dornach, Landkr. Muenchen; Registerger. Muenchen, HRB Nr. 43632

Re: [GIT PULL 00/16] perf/core improvements and fixes

[Namhyung Kim]

2012-02-14 2:52 PM, David Ahern wrote:
> On 2/13/12 10:48 PM, Namhyung Kim wrote:
>> Hi,
>>
>> 2012-02-14 2:23 PM, David Ahern wrote:
>>> On 2/13/12 10:10 PM, Namhyung Kim wrote:
>>>>>
>>>>
>>>> It happened because I used old kernel version that isn't aware of the
>>>> exclude_guest bit. So the check on attr->__reserved_1 in
>>>> core.c::perf_copy_attr() failed and then ended up seeing EINVAL at
>>>> perf_evsel__open().
>>>
>>> comes back to 1aed2671738785e8f5aea663a6fda91aa7ef59b5 again. See
>>>
>>> https://lkml.org/lkml/2012/2/8/234
>>>
>>
>> Thanks for the pointer, then I'll wait until the guys figure out what
>> the correct fix is :)
>>
>> Thanks,
>> Namhyung
>
> Resetting that default was it. :-)
>
> Does reverting the entire patch fix your problem?
>
> David

Yes, of course.

OK, then I'll start to rework perf target cleanups after reverting it.

Thanks,
Namhyung

Re: [GIT PULL 00/16] perf/core improvements and fixes

[David Ahern]

On 2/13/12 10:48 PM, Namhyung Kim wrote:
> Hi,
>
> 2012-02-14 2:23 PM, David Ahern wrote:
>> On 2/13/12 10:10 PM, Namhyung Kim wrote:
>>>>
>>>
>>> It happened because I used old kernel version that isn't aware of the
>>> exclude_guest bit. So the check on attr->__reserved_1 in
>>> core.c::perf_copy_attr() failed and then ended up seeing EINVAL at
>>> perf_evsel__open().
>>
>> comes back to 1aed2671738785e8f5aea663a6fda91aa7ef59b5 again. See
>>
>> https://lkml.org/lkml/2012/2/8/234
>>
>
> Thanks for the pointer, then I'll wait until the guys figure out what
> the correct fix is :)
>
> Thanks,
> Namhyung

Resetting that default was it. :-)

Does reverting the entire patch fix your problem?

David

Re: [GIT PULL 00/16] perf/core improvements and fixes

[Namhyung Kim]

Hi,

2012-02-14 2:23 PM, David Ahern wrote:
> On 2/13/12 10:10 PM, Namhyung Kim wrote:
>>>
>>
>> It happened because I used old kernel version that isn't aware of the
>> exclude_guest bit. So the check on attr->__reserved_1 in
>> core.c::perf_copy_attr() failed and then ended up seeing EINVAL at
>> perf_evsel__open().
>
> comes back to 1aed2671738785e8f5aea663a6fda91aa7ef59b5 again. See
>
> https://lkml.org/lkml/2012/2/8/234
>

Thanks for the pointer, then I'll wait until the guys figure out what the 
correct fix is :)

Thanks,
Namhyung

Re: [GIT PULL 00/16] perf/core improvements and fixes

[David Ahern]

On 2/13/12 10:10 PM, Namhyung Kim wrote:
>>
>
> It happened because I used old kernel version that isn't aware of the
> exclude_guest bit. So the check on attr->__reserved_1 in
> core.c::perf_copy_attr() failed and then ended up seeing EINVAL at
> perf_evsel__open().

comes back to 1aed2671738785e8f5aea663a6fda91aa7ef59b5 again. See

https://lkml.org/lkml/2012/2/8/234

>
> So I think it should be handled in the same way of handling
> sample_id_all bit in perf record and top if we want to set perf_guest to
> false by default. I'll send patches for them soon.
>
> Thanks,
> Namhyung

Re: [GIT PULL 00/16] perf/core improvements and fixes

[Namhyung Kim]

2012-02-14 12:07 PM, Namhyung Kim wrote:
> 2012-02-14 오전 11:50, Namhyung Kim 쓴 글:
>> Hello,
>>
>> 2012-02-14 10:52 AM, Arnaldo Carvalho de Melo wrote:
>>> The following changes since commit c98fdeaa92731308ed80386261fa2589addefa47:
>>>
>>> x86/sched/perf/AMD: Set sched_clock_stable (2012-02-07 13:12:08 +0100)
>>>
>>> are available in the git repository at:
>>>
>>> git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux perf-core-for-mingo
>>>
>>> for you to fetch changes up to 7e1ccd3804281fc0755eb726b654469c40a96d89:
>>>
>>> perf tools: cleanup initialization of attr->size (2012-02-13 23:35:04 -0200)
>>>
>>> ----------------------------------------------------------------
>>> perf/core fixes and improvements.
>>>
>>> Signed-off-by: Arnaldo Carvalho de Melo<acme@redhat.com>
>>>
>>
>> I've got a following error during a simple test:
>>
>> $ ./perf record -- sleep 1
>>
>> Error: sys_perf_event_open() syscall returned with 22 (Invalid argument).
>> /bin/dmesg may provide additional information.
>>
>> Fatal: No CONFIG_PERF_EVENTS=y kernel support configured?
>>
>> sleep: Terminated
>>
>>
>> Any thoughts?
>>
>> Thanks,
>> Namhyung
>>
>
> git bisect told me:
>
> c4a7dca92bbb9881a5d678720f1d0c2153499749 is the first bad commit
> commit c4a7dca92bbb9881a5d678720f1d0c2153499749
> Author: Joerg Roedel<joerg.roedel@amd.com>
> Date:   Fri Feb 10 18:05:05 2012 +0100
>
>      perf tools: Change perf_guest default back to false
>
>      Setting perf_guest to true by default makes no sense because the perf
>      subcommands can not setup guest symbol information and thus not process
>      and guest samples. The only exception is perf-kvm which changes the
>      perf_guest value on its own.  So change the default for perf_guest back
>      to false.
>
>      Cc: David Ahern<dsahern@gmail.com>
>      Cc: Ingo Molnar<mingo@elte.hu>
>      Cc: Jason Wang<jasowang@redhat.com>
>      Cc: Paul Mackerras<paulus@samba.org>
>      Cc: Peter Zijlstra<a.p.zijlstra@chello.nl>
>      Link: http://lkml.kernel.org/r/1328893505-4115-3-git-send-email-joerg.roedel@amd.com
>      Signed-off-by: Joerg Roedel<joerg.roedel@amd.com>
>      Signed-off-by: Arnaldo Carvalho de Melo<acme@redhat.com>
>
> :040000 040000 64d65944c9081dfd9ace65dbc19fca655cbdc708 4f0e86ab85314ba68f2295ae1e599f3bb5ab9484 M      tools
>
>
> Thanks,
> Namhyung
>

It happened because I used old kernel version that isn't aware of the 
exclude_guest bit. So the check on attr->__reserved_1 in 
core.c::perf_copy_attr() failed and then ended up seeing EINVAL at 
perf_evsel__open().

So I think it should be handled in the same way of handling sample_id_all bit 
in perf record and top if we want to set perf_guest to false by default. I'll 
send patches for them soon.

Thanks,
Namhyung

Re: [GIT PULL 00/16] perf/core improvements and fixes

[Namhyung Kim]

2012-02-14 오전 11:50, Namhyung Kim 쓴 글:
> Hello,
> 
> 2012-02-14 10:52 AM, Arnaldo Carvalho de Melo wrote:
>> The following changes since commit c98fdeaa92731308ed80386261fa2589addefa47:
>>
>> x86/sched/perf/AMD: Set sched_clock_stable (2012-02-07 13:12:08 +0100)
>>
>> are available in the git repository at:
>>
>> git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux perf-core-for-mingo
>>
>> for you to fetch changes up to 7e1ccd3804281fc0755eb726b654469c40a96d89:
>>
>> perf tools: cleanup initialization of attr->size (2012-02-13 23:35:04 -0200)
>>
>> ----------------------------------------------------------------
>> perf/core fixes and improvements.
>>
>> Signed-off-by: Arnaldo Carvalho de Melo<acme@redhat.com>
>>
> 
> I've got a following error during a simple test:
> 
> $ ./perf record -- sleep 1
> 
> Error: sys_perf_event_open() syscall returned with 22 (Invalid argument).
> /bin/dmesg may provide additional information.
> 
> Fatal: No CONFIG_PERF_EVENTS=y kernel support configured?
> 
> sleep: Terminated
> 
> 
> Any thoughts?
> 
> Thanks,
> Namhyung
> 

git bisect told me:

c4a7dca92bbb9881a5d678720f1d0c2153499749 is the first bad commit
commit c4a7dca92bbb9881a5d678720f1d0c2153499749
Author: Joerg Roedel <joerg.roedel@amd.com>
Date:   Fri Feb 10 18:05:05 2012 +0100

    perf tools: Change perf_guest default back to false

    Setting perf_guest to true by default makes no sense because the perf
    subcommands can not setup guest symbol information and thus not process
    and guest samples. The only exception is perf-kvm which changes the
    perf_guest value on its own.  So change the default for perf_guest back
    to false.

    Cc: David Ahern <dsahern@gmail.com>
    Cc: Ingo Molnar <mingo@elte.hu>
    Cc: Jason Wang <jasowang@redhat.com>
    Cc: Paul Mackerras <paulus@samba.org>
    Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
    Link: http://lkml.kernel.org/r/1328893505-4115-3-git-send-email-joerg.roedel@amd.com
    Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
    Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

:040000 040000 64d65944c9081dfd9ace65dbc19fca655cbdc708 4f0e86ab85314ba68f2295ae1e599f3bb5ab9484 M      tools


Thanks,
Namhyung

Re: [GIT PULL 00/16] perf/core improvements and fixes

[Namhyung Kim]

Hello,

2012-02-14 10:52 AM, Arnaldo Carvalho de Melo wrote:
> The following changes since commit c98fdeaa92731308ed80386261fa2589addefa47:
>
>    x86/sched/perf/AMD: Set sched_clock_stable (2012-02-07 13:12:08 +0100)
>
> are available in the git repository at:
>
>    git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux perf-core-for-mingo
>
> for you to fetch changes up to 7e1ccd3804281fc0755eb726b654469c40a96d89:
>
>    perf tools: cleanup initialization of attr->size (2012-02-13 23:35:04 -0200)
>
> ----------------------------------------------------------------
> perf/core fixes and improvements.
>
> Signed-off-by: Arnaldo Carvalho de Melo<acme@redhat.com>
>

I've got a following error during a simple test:

  $ ./perf record -- sleep 1

    Error: sys_perf_event_open() syscall returned with 22 (Invalid argument).
           /bin/dmesg may provide additional information.

    Fatal: No CONFIG_PERF_EVENTS=y kernel support configured?

  sleep: Terminated


Any thoughts?

Thanks,
Namhyung


> ----------------------------------------------------------------
> David Ahern (3):
>        perf record: No build id option fails
>        perf tools: Fix out of tree compiles
>        perf tools: Allow multiple threads or processes in record, stat, top
>
> Jiri Olsa (3):
>        perf tools: Remove unused functions from debugfs object
>        perf tools: Add sysfs mountpoint interface
>        perf tools: Add bitmap_or function into bitmap object
>
> Joerg Roedel (2):
>        perf top: Don't process samples with no valid machine object
>        perf tools: Change perf_guest default back to false
>
> Namhyung Kim (4):
>        perf tools: Fix build dependency of perf python extension
>        perf tools: Implement islower/isupper macro into util.h
>        perf tools: ctype.c only wants util.h
>        perf tools: Get rid of ctype.h in symbol.c
>
> Robert Richter (2):
>        perf tools: Moving code in header.c
>        perf tools: Factor out feature op to process header sections
>
> Stephane Eranian (2):
>        perf tools: fix endianness detection in perf.data
>        perf tools: cleanup initialization of attr->size
>
>   tools/perf/Documentation/perf-record.txt |    4 +-
>   tools/perf/Documentation/perf-stat.txt   |    4 +-
>   tools/perf/Documentation/perf-top.txt    |    4 +-
>   tools/perf/MANIFEST                      |    1 +
>   tools/perf/Makefile                      |    7 +-
>   tools/perf/builtin-record.c              |   14 +-
>   tools/perf/builtin-stat.c                |   31 ++-
>   tools/perf/builtin-test.c                |    2 -
>   tools/perf/builtin-top.c                 |   18 +-
>   tools/perf/perf.h                        |    5 +-
>   tools/perf/util/bitmap.c                 |   10 +
>   tools/perf/util/ctype.c                  |    2 +-
>   tools/perf/util/debugfs.c                |  141 ----------
>   tools/perf/util/debugfs.h                |    6 -
>   tools/perf/util/evlist.c                 |   10 +-
>   tools/perf/util/evlist.h                 |    4 +-
>   tools/perf/util/evsel.c                  |    2 +-
>   tools/perf/util/header.c                 |  421 +++++++++++++++++-------------
>   tools/perf/util/hist.h                   |    1 +
>   tools/perf/util/include/linux/bitmap.h   |   11 +
>   tools/perf/util/python-ext-sources       |   19 ++
>   tools/perf/util/session.c                |   10 +
>   tools/perf/util/setup.py                 |    8 +-
>   tools/perf/util/symbol.c                 |    2 +-
>   tools/perf/util/sysfs.c                  |   60 +++++
>   tools/perf/util/sysfs.h                  |    6 +
>   tools/perf/util/thread_map.c             |  128 +++++++++
>   tools/perf/util/thread_map.h             |    4 +
>   tools/perf/util/top.c                    |   10 +-
>   tools/perf/util/top.h                    |    2 +-
>   tools/perf/util/usage.c                  |    6 +-
>   tools/perf/util/util.c                   |    4 +-
>   tools/perf/util/util.h                   |    6 +-
>   33 files changed, 571 insertions(+), 392 deletions(-)
>   create mode 100644 tools/perf/util/python-ext-sources
>   create mode 100644 tools/perf/util/sysfs.c
>   create mode 100644 tools/perf/util/sysfs.h

[GIT PULL 00/16] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

The following changes since commit c98fdeaa92731308ed80386261fa2589addefa47:

  x86/sched/perf/AMD: Set sched_clock_stable (2012-02-07 13:12:08 +0100)

are available in the git repository at:

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

for you to fetch changes up to 7e1ccd3804281fc0755eb726b654469c40a96d89:

  perf tools: cleanup initialization of attr->size (2012-02-13 23:35:04 -0200)

----------------------------------------------------------------
perf/core fixes and improvements.

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

----------------------------------------------------------------
David Ahern (3):
      perf record: No build id option fails
      perf tools: Fix out of tree compiles
      perf tools: Allow multiple threads or processes in record, stat, top

Jiri Olsa (3):
      perf tools: Remove unused functions from debugfs object
      perf tools: Add sysfs mountpoint interface
      perf tools: Add bitmap_or function into bitmap object

Joerg Roedel (2):
      perf top: Don't process samples with no valid machine object
      perf tools: Change perf_guest default back to false

Namhyung Kim (4):
      perf tools: Fix build dependency of perf python extension
      perf tools: Implement islower/isupper macro into util.h
      perf tools: ctype.c only wants util.h
      perf tools: Get rid of ctype.h in symbol.c

Robert Richter (2):
      perf tools: Moving code in header.c
      perf tools: Factor out feature op to process header sections

Stephane Eranian (2):
      perf tools: fix endianness detection in perf.data
      perf tools: cleanup initialization of attr->size

 tools/perf/Documentation/perf-record.txt |    4 +-
 tools/perf/Documentation/perf-stat.txt   |    4 +-
 tools/perf/Documentation/perf-top.txt    |    4 +-
 tools/perf/MANIFEST                      |    1 +
 tools/perf/Makefile                      |    7 +-
 tools/perf/builtin-record.c              |   14 +-
 tools/perf/builtin-stat.c                |   31 ++-
 tools/perf/builtin-test.c                |    2 -
 tools/perf/builtin-top.c                 |   18 +-
 tools/perf/perf.h                        |    5 +-
 tools/perf/util/bitmap.c                 |   10 +
 tools/perf/util/ctype.c                  |    2 +-
 tools/perf/util/debugfs.c                |  141 ----------
 tools/perf/util/debugfs.h                |    6 -
 tools/perf/util/evlist.c                 |   10 +-
 tools/perf/util/evlist.h                 |    4 +-
 tools/perf/util/evsel.c                  |    2 +-
 tools/perf/util/header.c                 |  421 +++++++++++++++++-------------
 tools/perf/util/hist.h                   |    1 +
 tools/perf/util/include/linux/bitmap.h   |   11 +
 tools/perf/util/python-ext-sources       |   19 ++
 tools/perf/util/session.c                |   10 +
 tools/perf/util/setup.py                 |    8 +-
 tools/perf/util/symbol.c                 |    2 +-
 tools/perf/util/sysfs.c                  |   60 +++++
 tools/perf/util/sysfs.h                  |    6 +
 tools/perf/util/thread_map.c             |  128 +++++++++
 tools/perf/util/thread_map.h             |    4 +
 tools/perf/util/top.c                    |   10 +-
 tools/perf/util/top.h                    |    2 +-
 tools/perf/util/usage.c                  |    6 +-
 tools/perf/util/util.c                   |    4 +-
 tools/perf/util/util.h                   |    6 +-
 33 files changed, 571 insertions(+), 392 deletions(-)
 create mode 100644 tools/perf/util/python-ext-sources
 create mode 100644 tools/perf/util/sysfs.c
 create mode 100644 tools/perf/util/sysfs.h

Re: [GIT PULL 00/16] perf/core improvements and fixes

[Ingo Molnar]

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

> Hi Ingo,
> 
>         Please consider pulling from:
> 
> git://github.com/acmel/linux.git perf/core
> 
> 	This was rebased against your perf/core on tesla.
> 
> Regards,
> 
> - Arnaldo
> 
> Andi Kleen (2):
>   perf tools: Make stat/record print fatal signals of the target program
>   perf: Support setting the disassembler style
> 
> Arnaldo Carvalho de Melo (6):
>   perf symbols: Stop using 'self' in map_groups__ methods
>   perf buildid-list: Add option to show the running kernel build id
>   perf buildid-list: Support showing the build id in an ELF file
>   perf top browser: Fix up line width calculation
>   perf top: Improve lost events warning
>   perf report: Fix stdio event name header printing
> 
> Jim Cromie (5):
>   perf stat: Add --log-fd <N> option to redirect stderr elsewhere
>   perf stat: Fix +- nan% in --no-aggr runs
>   perf stat: Suppress printing std-dev when its 0
>   perf stat: Allow tab as cvs delimiter
>   perf stat: Fix spelling in comment
> 
> Jiri Olsa (2):
>   perf sched: Fix script command documentation
>   perf symbols: Treat all memory maps without dso file as loaded
> 
> Neil Horman (1):
>   perf script: Add drop monitor script
> 
>  tools/perf/Documentation/perf-annotate.txt         |    3 +
>  tools/perf/Documentation/perf-buildid-list.txt     |    6 +
>  tools/perf/Documentation/perf-report.txt           |    3 +
>  tools/perf/Documentation/perf-sched.txt            |    6 +-
>  tools/perf/Documentation/perf-stat.txt             |   11 ++-
>  tools/perf/builtin-annotate.c                      |    2 +
>  tools/perf/builtin-buildid-list.c                  |   52 ++++++++++-
>  tools/perf/builtin-record.c                        |   19 ++++-
>  tools/perf/builtin-report.c                        |    7 +-
>  tools/perf/builtin-stat.c                          |   35 ++++++-
>  tools/perf/builtin-top.c                           |   34 ++++----
>  .../perf/scripts/python/bin/net_dropmonitor-record |    2 +
>  .../perf/scripts/python/bin/net_dropmonitor-report |    4 +
>  tools/perf/scripts/python/net_dropmonitor.py       |   72 ++++++++++++++
>  tools/perf/util/annotate.c                         |    6 +-
>  tools/perf/util/annotate.h                         |    2 +
>  tools/perf/util/map.c                              |   98 +++++++++++---------
>  tools/perf/util/map.h                              |   42 ++++----
>  tools/perf/util/top.h                              |    3 +
>  tools/perf/util/ui/browsers/top.c                  |   28 +++++-
>  20 files changed, 333 insertions(+), 102 deletions(-)
>  create mode 100755 tools/perf/scripts/python/bin/net_dropmonitor-record
>  create mode 100755 tools/perf/scripts/python/bin/net_dropmonitor-report
>  create mode 100755 tools/perf/scripts/python/net_dropmonitor.py

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/16] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

        Please consider pulling from:

git://github.com/acmel/linux.git perf/core

	This was rebased against your perf/core on tesla.

Regards,

- Arnaldo

Andi Kleen (2):
  perf tools: Make stat/record print fatal signals of the target program
  perf: Support setting the disassembler style

Arnaldo Carvalho de Melo (6):
  perf symbols: Stop using 'self' in map_groups__ methods
  perf buildid-list: Add option to show the running kernel build id
  perf buildid-list: Support showing the build id in an ELF file
  perf top browser: Fix up line width calculation
  perf top: Improve lost events warning
  perf report: Fix stdio event name header printing

Jim Cromie (5):
  perf stat: Add --log-fd <N> option to redirect stderr elsewhere
  perf stat: Fix +- nan% in --no-aggr runs
  perf stat: Suppress printing std-dev when its 0
  perf stat: Allow tab as cvs delimiter
  perf stat: Fix spelling in comment

Jiri Olsa (2):
  perf sched: Fix script command documentation
  perf symbols: Treat all memory maps without dso file as loaded

Neil Horman (1):
  perf script: Add drop monitor script

 tools/perf/Documentation/perf-annotate.txt         |    3 +
 tools/perf/Documentation/perf-buildid-list.txt     |    6 +
 tools/perf/Documentation/perf-report.txt           |    3 +
 tools/perf/Documentation/perf-sched.txt            |    6 +-
 tools/perf/Documentation/perf-stat.txt             |   11 ++-
 tools/perf/builtin-annotate.c                      |    2 +
 tools/perf/builtin-buildid-list.c                  |   52 ++++++++++-
 tools/perf/builtin-record.c                        |   19 ++++-
 tools/perf/builtin-report.c                        |    7 +-
 tools/perf/builtin-stat.c                          |   35 ++++++-
 tools/perf/builtin-top.c                           |   34 ++++----
 .../perf/scripts/python/bin/net_dropmonitor-record |    2 +
 .../perf/scripts/python/bin/net_dropmonitor-report |    4 +
 tools/perf/scripts/python/net_dropmonitor.py       |   72 ++++++++++++++
 tools/perf/util/annotate.c                         |    6 +-
 tools/perf/util/annotate.h                         |    2 +
 tools/perf/util/map.c                              |   98 +++++++++++---------
 tools/perf/util/map.h                              |   42 ++++----
 tools/perf/util/top.h                              |    3 +
 tools/perf/util/ui/browsers/top.c                  |   28 +++++-
 20 files changed, 333 insertions(+), 102 deletions(-)
 create mode 100755 tools/perf/scripts/python/bin/net_dropmonitor-record
 create mode 100755 tools/perf/scripts/python/bin/net_dropmonitor-report
 create mode 100755 tools/perf/scripts/python/net_dropmonitor.py