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[PATCH perf/core v8 00/16] perf-probe --cache and SDT support

Started byMasami Hiramatsu <mhiramat@kernel.org>
First post2016-05-16 04:10 +0200
Last post2016-05-20 13:10 +0200
Articles 5 — 3 participants

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  [PATCH perf/core v8 00/16] perf-probe --cache and SDT support Masami Hiramatsu <mhiramat@kernel.org> - 2016-05-16 04:10 +0200
    [PATCH perf/core v8 01/16] perf buildid: Introduce DSO__NAME_KALLSYMS and DSO__NAME_KCORE Masami Hiramatsu <mhiramat@kernel.org> - 2016-05-16 04:10 +0200
      [tip:perf/urgent] perf symbols: Introduce DSO__NAME_KALLSYMS and  DSO__NAME_KCORE tip-bot for Masami Hiramatsu <tipbot@zytor.com> - 2016-05-20 08:50 +0200
    Re: [PATCH perf/core v8 00/16] perf-probe --cache and SDT support Hemant Kumar <hemant@linux.vnet.ibm.com> - 2016-05-20 07:00 +0200
      Re: [PATCH perf/core v8 00/16] perf-probe --cache and SDT support Masami Hiramatsu <mhiramat@kernel.org> - 2016-05-20 13:10 +0200

#1401241 — [PATCH perf/core v8 00/16] perf-probe --cache and SDT support

FromMasami Hiramatsu <mhiramat@kernel.org>
Date2016-05-16 04:10 +0200
Subject[PATCH perf/core v8 00/16] perf-probe --cache and SDT support
Message-ID<rzg8O-u7-27@gated-at.bofh.it>
Hi,

Here is the 8th version of the patchset for probe-cache and 
initial SDT support.

The previous version is here; https://lkml.org/lkml/2016/5/11/446

This version I droped the second patch in v7 because it may
involves unintended behavior change and we'd better discuss it
out of this series. I also added comments why we can't use
access(R_OK) for /proc/kcore.

Hemant, could you review and test this series so that we can
proceed to your patch depending on this?

Thank you,

---

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

Masami Hiramatsu (15):
      perf buildid: Introduce DSO__NAME_KALLSYMS and DSO__NAME_KCORE
      perf symbol: Cleanup the code flow of dso__find_kallsyms
      perf-buildid-cache: Use path/to/bin/buildid/elf instead of path/to/bin/buildid
      perf probe: Add --cache option to cache the probe definitions
      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
      perf probe: Accept %sdt and %cached event name
      perf-list: Show SDT and pre-cached events
      perf-list: Skip SDTs placed in invalid binaries
      perf probe: Allow wildcard for cached events
      perf probe: Support @BUILDID or @FILE suffix for SDT events
      perf probe: Support a special SDT probe format


 tools/perf/Documentation/perf-probe.txt |   26 +-
 tools/perf/builtin-buildid-cache.c      |    8 
 tools/perf/builtin-list.c               |    4 
 tools/perf/builtin-probe.c              |   30 ++
 tools/perf/util/annotate.c              |    2 
 tools/perf/util/build-id.c              |  295 ++++++++++++++++--
 tools/perf/util/build-id.h              |    8 
 tools/perf/util/dso.h                   |    5 
 tools/perf/util/machine.c               |    2 
 tools/perf/util/parse-events.c          |   83 +++++
 tools/perf/util/parse-events.h          |    2 
 tools/perf/util/probe-event.c           |  492 +++++++++++++++++++++++++++---
 tools/perf/util/probe-event.h           |    7 
 tools/perf/util/probe-file.c            |  502 +++++++++++++++++++++++++++++++
 tools/perf/util/probe-file.h            |   41 +++
 tools/perf/util/symbol-elf.c            |  252 ++++++++++++++++
 tools/perf/util/symbol.c                |   73 ++---
 tools/perf/util/symbol.h                |   25 ++
 18 files changed, 1719 insertions(+), 138 deletions(-)

--
Masami Hiramatsu

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#1401251 — [PATCH perf/core v8 01/16] perf buildid: Introduce DSO__NAME_KALLSYMS and DSO__NAME_KCORE

FromMasami Hiramatsu <mhiramat@kernel.org>
Date2016-05-16 04:10 +0200
Subject[PATCH perf/core v8 01/16] perf buildid: Introduce DSO__NAME_KALLSYMS and DSO__NAME_KCORE
Message-ID<rzg8Y-u7-285@gated-at.bofh.it>
In reply to#1401241
Instead of using raw string, use DSO__NAME_KALLSYMS and DSO__NAME_KCORE
macros for kallsyms and kcore.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
---
 tools/perf/builtin-buildid-cache.c |    8 ++++----
 tools/perf/util/annotate.c         |    2 +-
 tools/perf/util/machine.c          |    2 +-
 tools/perf/util/symbol.c           |   10 +++++-----
 tools/perf/util/symbol.h           |    3 +++
 5 files changed, 14 insertions(+), 11 deletions(-)

diff --git a/tools/perf/builtin-buildid-cache.c b/tools/perf/builtin-buildid-cache.c
index 632efc6..d75bded 100644
--- a/tools/perf/builtin-buildid-cache.c
+++ b/tools/perf/builtin-buildid-cache.c
@@ -119,8 +119,8 @@ static int build_id_cache__add_kcore(const char *filename, bool force)
 	if (build_id_cache__kcore_buildid(from_dir, sbuildid) < 0)
 		return -1;
 
-	scnprintf(to_dir, sizeof(to_dir), "%s/[kernel.kcore]/%s",
-		  buildid_dir, sbuildid);
+	scnprintf(to_dir, sizeof(to_dir), "%s/%s/%s",
+		  buildid_dir, DSO__NAME_KCORE, sbuildid);
 
 	if (!force &&
 	    !build_id_cache__kcore_existing(from_dir, to_dir, sizeof(to_dir))) {
@@ -131,8 +131,8 @@ static int build_id_cache__add_kcore(const char *filename, bool force)
 	if (build_id_cache__kcore_dir(dir, sizeof(dir)))
 		return -1;
 
-	scnprintf(to_dir, sizeof(to_dir), "%s/[kernel.kcore]/%s/%s",
-		  buildid_dir, sbuildid, dir);
+	scnprintf(to_dir, sizeof(to_dir), "%s/%s/%s/%s",
+		  buildid_dir, DSO__NAME_KCORE, sbuildid, dir);
 
 	if (mkdir_p(to_dir, 0755))
 		return -1;
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 4db73d5..b811924 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1122,7 +1122,7 @@ int symbol__annotate(struct symbol *sym, struct map *map, size_t privsize)
 	} else if (dso__is_kcore(dso)) {
 		goto fallback;
 	} else if (readlink(symfs_filename, command, sizeof(command)) < 0 ||
-		   strstr(command, "[kernel.kallsyms]") ||
+		   strstr(command, DSO__NAME_KALLSYMS) ||
 		   access(symfs_filename, R_OK)) {
 		free(filename);
 fallback:
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 639a290..18dd96b 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -709,7 +709,7 @@ static struct dso *machine__get_kernel(struct machine *machine)
 	if (machine__is_host(machine)) {
 		vmlinux_name = symbol_conf.vmlinux_name;
 		if (!vmlinux_name)
-			vmlinux_name = "[kernel.kallsyms]";
+			vmlinux_name = DSO__NAME_KALLSYMS;
 
 		kernel = machine__findnew_kernel(machine, vmlinux_name,
 						 "[kernel]", DSO_TYPE_KERNEL);
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 7fb3330..2252b54 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1662,8 +1662,8 @@ static char *dso__find_kallsyms(struct dso *dso, struct map *map)
 
 	build_id__sprintf(dso->build_id, sizeof(dso->build_id), sbuild_id);
 
-	scnprintf(path, sizeof(path), "%s/[kernel.kcore]/%s", buildid_dir,
-		  sbuild_id);
+	scnprintf(path, sizeof(path), "%s/%s/%s", buildid_dir,
+		  DSO__NAME_KCORE, sbuild_id);
 
 	/* Use /proc/kallsyms if possible */
 	if (is_host) {
@@ -1699,8 +1699,8 @@ static char *dso__find_kallsyms(struct dso *dso, struct map *map)
 	if (!find_matching_kcore(map, path, sizeof(path)))
 		return strdup(path);
 
-	scnprintf(path, sizeof(path), "%s/[kernel.kallsyms]/%s",
-		  buildid_dir, sbuild_id);
+	scnprintf(path, sizeof(path), "%s/%s/%s",
+		  buildid_dir, DSO__NAME_KALLSYMS, sbuild_id);
 
 	if (access(path, F_OK)) {
 		pr_err("No kallsyms or vmlinux with build-id %s was found\n",
@@ -1769,7 +1769,7 @@ do_kallsyms:
 
 	if (err > 0 && !dso__is_kcore(dso)) {
 		dso->binary_type = DSO_BINARY_TYPE__KALLSYMS;
-		dso__set_long_name(dso, "[kernel.kallsyms]", false);
+		dso__set_long_name(dso, DSO__NAME_KALLSYMS, false);
 		map__fixup_start(map);
 		map__fixup_end(map);
 	}
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 2b5e4ed..25f2fd67 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -44,6 +44,9 @@ Elf_Scn *elf_section_by_name(Elf *elf, GElf_Ehdr *ep,
 #define DMGL_ANSI        (1 << 1)       /* Include const, volatile, etc */
 #endif
 
+#define DSO__NAME_KALLSYMS	"[kernel.kallsyms]"
+#define DSO__NAME_KCORE		"[kernel.kcore]"
+
 /** struct symbol - symtab entry
  *
  * @ignore - resolvable but tools ignore it (e.g. idle routines)

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#1404158 — [tip:perf/urgent] perf symbols: Introduce DSO__NAME_KALLSYMS and DSO__NAME_KCORE

Fromtip-bot for Masami Hiramatsu <tipbot@zytor.com>
Date2016-05-20 08:50 +0200
Subject[tip:perf/urgent] perf symbols: Introduce DSO__NAME_KALLSYMS and DSO__NAME_KCORE
Message-ID<rAMpX-25Y-9@gated-at.bofh.it>
In reply to#1401251
Commit-ID:  0a77582f0407e7f9b5d775bebc31297a1b890be0
Gitweb:     http://git.kernel.org/tip/0a77582f0407e7f9b5d775bebc31297a1b890be0
Author:     Masami Hiramatsu <mhiramat@kernel.org>
AuthorDate: Sun, 15 May 2016 12:19:40 +0900
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 16 May 2016 23:11:48 -0300

perf symbols: Introduce DSO__NAME_KALLSYMS and DSO__NAME_KCORE

Instead of using a raw string, use DSO__NAME_KALLSYMS and
DSO__NAME_KCORE macros for kallsyms and kcore.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
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/20160515031935.4017.50971.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-buildid-cache.c |  8 ++++----
 tools/perf/util/annotate.c         |  2 +-
 tools/perf/util/machine.c          |  2 +-
 tools/perf/util/symbol.c           | 10 +++++-----
 tools/perf/util/symbol.h           |  3 +++
 5 files changed, 14 insertions(+), 11 deletions(-)

diff --git a/tools/perf/builtin-buildid-cache.c b/tools/perf/builtin-buildid-cache.c
index 632efc6..d75bded 100644
--- a/tools/perf/builtin-buildid-cache.c
+++ b/tools/perf/builtin-buildid-cache.c
@@ -119,8 +119,8 @@ static int build_id_cache__add_kcore(const char *filename, bool force)
 	if (build_id_cache__kcore_buildid(from_dir, sbuildid) < 0)
 		return -1;
 
-	scnprintf(to_dir, sizeof(to_dir), "%s/[kernel.kcore]/%s",
-		  buildid_dir, sbuildid);
+	scnprintf(to_dir, sizeof(to_dir), "%s/%s/%s",
+		  buildid_dir, DSO__NAME_KCORE, sbuildid);
 
 	if (!force &&
 	    !build_id_cache__kcore_existing(from_dir, to_dir, sizeof(to_dir))) {
@@ -131,8 +131,8 @@ static int build_id_cache__add_kcore(const char *filename, bool force)
 	if (build_id_cache__kcore_dir(dir, sizeof(dir)))
 		return -1;
 
-	scnprintf(to_dir, sizeof(to_dir), "%s/[kernel.kcore]/%s/%s",
-		  buildid_dir, sbuildid, dir);
+	scnprintf(to_dir, sizeof(to_dir), "%s/%s/%s/%s",
+		  buildid_dir, DSO__NAME_KCORE, sbuildid, dir);
 
 	if (mkdir_p(to_dir, 0755))
 		return -1;
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 4db73d5..b811924 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1122,7 +1122,7 @@ int symbol__annotate(struct symbol *sym, struct map *map, size_t privsize)
 	} else if (dso__is_kcore(dso)) {
 		goto fallback;
 	} else if (readlink(symfs_filename, command, sizeof(command)) < 0 ||
-		   strstr(command, "[kernel.kallsyms]") ||
+		   strstr(command, DSO__NAME_KALLSYMS) ||
 		   access(symfs_filename, R_OK)) {
 		free(filename);
 fallback:
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 639a290..18dd96b 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -709,7 +709,7 @@ static struct dso *machine__get_kernel(struct machine *machine)
 	if (machine__is_host(machine)) {
 		vmlinux_name = symbol_conf.vmlinux_name;
 		if (!vmlinux_name)
-			vmlinux_name = "[kernel.kallsyms]";
+			vmlinux_name = DSO__NAME_KALLSYMS;
 
 		kernel = machine__findnew_kernel(machine, vmlinux_name,
 						 "[kernel]", DSO_TYPE_KERNEL);
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 7fb3330..2252b54 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1662,8 +1662,8 @@ static char *dso__find_kallsyms(struct dso *dso, struct map *map)
 
 	build_id__sprintf(dso->build_id, sizeof(dso->build_id), sbuild_id);
 
-	scnprintf(path, sizeof(path), "%s/[kernel.kcore]/%s", buildid_dir,
-		  sbuild_id);
+	scnprintf(path, sizeof(path), "%s/%s/%s", buildid_dir,
+		  DSO__NAME_KCORE, sbuild_id);
 
 	/* Use /proc/kallsyms if possible */
 	if (is_host) {
@@ -1699,8 +1699,8 @@ static char *dso__find_kallsyms(struct dso *dso, struct map *map)
 	if (!find_matching_kcore(map, path, sizeof(path)))
 		return strdup(path);
 
-	scnprintf(path, sizeof(path), "%s/[kernel.kallsyms]/%s",
-		  buildid_dir, sbuild_id);
+	scnprintf(path, sizeof(path), "%s/%s/%s",
+		  buildid_dir, DSO__NAME_KALLSYMS, sbuild_id);
 
 	if (access(path, F_OK)) {
 		pr_err("No kallsyms or vmlinux with build-id %s was found\n",
@@ -1769,7 +1769,7 @@ do_kallsyms:
 
 	if (err > 0 && !dso__is_kcore(dso)) {
 		dso->binary_type = DSO_BINARY_TYPE__KALLSYMS;
-		dso__set_long_name(dso, "[kernel.kallsyms]", false);
+		dso__set_long_name(dso, DSO__NAME_KALLSYMS, false);
 		map__fixup_start(map);
 		map__fixup_end(map);
 	}
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 2b5e4ed..25f2fd67 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -44,6 +44,9 @@ Elf_Scn *elf_section_by_name(Elf *elf, GElf_Ehdr *ep,
 #define DMGL_ANSI        (1 << 1)       /* Include const, volatile, etc */
 #endif
 
+#define DSO__NAME_KALLSYMS	"[kernel.kallsyms]"
+#define DSO__NAME_KCORE		"[kernel.kcore]"
+
 /** struct symbol - symtab entry
  *
  * @ignore - resolvable but tools ignore it (e.g. idle routines)

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#1404130

FromHemant Kumar <hemant@linux.vnet.ibm.com>
Date2016-05-20 07:00 +0200
Message-ID<rAKHv-10c-5@gated-at.bofh.it>
In reply to#1401241

On 05/15/2016 08:49 AM, Masami Hiramatsu wrote:
> Hi,
>
> Here is the 8th version of the patchset for probe-cache and
> initial SDT support.
>
> The previous version is here; https://lkml.org/lkml/2016/5/11/446
>
> This version I droped the second patch in v7 because it may
> involves unintended behavior change and we'd better discuss it
> out of this series. I also added comments why we can't use
> access(R_OK) for /proc/kcore.
>
> Hemant, could you review and test this series so that we can
> proceed to your patch depending on this?

So, apart from the two issues which I mentioned in
the individual patches, it seems fine.

However, I think we will need a bit detailed documentation for the
probe cache feature as well as for the SDT support, given that we
have different commands to add {probe,sdt} events for a binary
and use them. I will write that that doc up based on your next
version.

>
> Thank you,
>
> ---
>
> Hemant Kumar (1):
>        perf/sdt: ELF support for SDT
>
> Masami Hiramatsu (15):
>        perf buildid: Introduce DSO__NAME_KALLSYMS and DSO__NAME_KCORE
>        perf symbol: Cleanup the code flow of dso__find_kallsyms
>        perf-buildid-cache: Use path/to/bin/buildid/elf instead of path/to/bin/buildid
>        perf probe: Add --cache option to cache the probe definitions
>        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
>        perf probe: Accept %sdt and %cached event name
>        perf-list: Show SDT and pre-cached events
>        perf-list: Skip SDTs placed in invalid binaries
>        perf probe: Allow wildcard for cached events
>        perf probe: Support @BUILDID or @FILE suffix for SDT events
>        perf probe: Support a special SDT probe format
>
>
>   tools/perf/Documentation/perf-probe.txt |   26 +-
>   tools/perf/builtin-buildid-cache.c      |    8
>   tools/perf/builtin-list.c               |    4
>   tools/perf/builtin-probe.c              |   30 ++
>   tools/perf/util/annotate.c              |    2
>   tools/perf/util/build-id.c              |  295 ++++++++++++++++--
>   tools/perf/util/build-id.h              |    8
>   tools/perf/util/dso.h                   |    5
>   tools/perf/util/machine.c               |    2
>   tools/perf/util/parse-events.c          |   83 +++++
>   tools/perf/util/parse-events.h          |    2
>   tools/perf/util/probe-event.c           |  492 +++++++++++++++++++++++++++---
>   tools/perf/util/probe-event.h           |    7
>   tools/perf/util/probe-file.c            |  502 +++++++++++++++++++++++++++++++
>   tools/perf/util/probe-file.h            |   41 +++
>   tools/perf/util/symbol-elf.c            |  252 ++++++++++++++++
>   tools/perf/util/symbol.c                |   73 ++---
>   tools/perf/util/symbol.h                |   25 ++
>   18 files changed, 1719 insertions(+), 138 deletions(-)
>
> --
> Masami Hiramatsu
>

-- 
Thanks,
Hemant Kumar

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#1404341

FromMasami Hiramatsu <mhiramat@kernel.org>
Date2016-05-20 13:10 +0200
Message-ID<rAQtz-4Kg-5@gated-at.bofh.it>
In reply to#1404130
On Fri, 20 May 2016 10:21:09 +0530
Hemant Kumar <hemant@linux.vnet.ibm.com> wrote:

> 
> 
> On 05/15/2016 08:49 AM, Masami Hiramatsu wrote:
> > Hi,
> >
> > Here is the 8th version of the patchset for probe-cache and
> > initial SDT support.
> >
> > The previous version is here; https://lkml.org/lkml/2016/5/11/446
> >
> > This version I droped the second patch in v7 because it may
> > involves unintended behavior change and we'd better discuss it
> > out of this series. I also added comments why we can't use
> > access(R_OK) for /proc/kcore.
> >
> > Hemant, could you review and test this series so that we can
> > proceed to your patch depending on this?
> 
> So, apart from the two issues which I mentioned in
> the individual patches, it seems fine.

Thanks! I'll fix those issues and send v9.

> However, I think we will need a bit detailed documentation for the
> probe cache feature as well as for the SDT support, given that we
> have different commands to add {probe,sdt} events for a binary
> and use them. I will write that that doc up based on your next
> version.

Would you mean updating Documentation/perf-probe.txt?
Anyway it is welcome your contribution!

Thank you,


> 
> >
> > Thank you,
> >
> > ---
> >
> > Hemant Kumar (1):
> >        perf/sdt: ELF support for SDT
> >
> > Masami Hiramatsu (15):
> >        perf buildid: Introduce DSO__NAME_KALLSYMS and DSO__NAME_KCORE
> >        perf symbol: Cleanup the code flow of dso__find_kallsyms
> >        perf-buildid-cache: Use path/to/bin/buildid/elf instead of path/to/bin/buildid
> >        perf probe: Add --cache option to cache the probe definitions
> >        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
> >        perf probe: Accept %sdt and %cached event name
> >        perf-list: Show SDT and pre-cached events
> >        perf-list: Skip SDTs placed in invalid binaries
> >        perf probe: Allow wildcard for cached events
> >        perf probe: Support @BUILDID or @FILE suffix for SDT events
> >        perf probe: Support a special SDT probe format
> >
> >
> >   tools/perf/Documentation/perf-probe.txt |   26 +-
> >   tools/perf/builtin-buildid-cache.c      |    8
> >   tools/perf/builtin-list.c               |    4
> >   tools/perf/builtin-probe.c              |   30 ++
> >   tools/perf/util/annotate.c              |    2
> >   tools/perf/util/build-id.c              |  295 ++++++++++++++++--
> >   tools/perf/util/build-id.h              |    8
> >   tools/perf/util/dso.h                   |    5
> >   tools/perf/util/machine.c               |    2
> >   tools/perf/util/parse-events.c          |   83 +++++
> >   tools/perf/util/parse-events.h          |    2
> >   tools/perf/util/probe-event.c           |  492 +++++++++++++++++++++++++++---
> >   tools/perf/util/probe-event.h           |    7
> >   tools/perf/util/probe-file.c            |  502 +++++++++++++++++++++++++++++++
> >   tools/perf/util/probe-file.h            |   41 +++
> >   tools/perf/util/symbol-elf.c            |  252 ++++++++++++++++
> >   tools/perf/util/symbol.c                |   73 ++---
> >   tools/perf/util/symbol.h                |   25 ++
> >   18 files changed, 1719 insertions(+), 138 deletions(-)
> >
> > --
> > Masami Hiramatsu
> >
> 
> -- 
> Thanks,
> Hemant Kumar
> 


-- 
Masami Hiramatsu <mhiramat@kernel.org>

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