subject:"\[PATCH perf\/core v13 02\/15\] perf probe\: Show all cached probes"

Re: [PATCH perf/core v13 02/15] perf probe: Show all cached probes

2016-07-03 Thread Masami Hiramatsu

On Fri, 1 Jul 2016 10:51:04 -0300
Arnaldo Carvalho de Melo  wrote:

> Em Fri, Jul 01, 2016 at 05:03:26PM +0900, Masami Hiramatsu escreveu:
> > From: Masami Hiramatsu 
> > 
> > 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
> 
> This one works:
> 
> # perf probe --cache vfs_read \$params
> Added new event:
>   probe:vfs_read   (on vfs_read with $params)
> 
> You can now use it in all perf tools, such as:
> 
>   perf record -e probe:vfs_read -aR sleep 1
> 
> #
> 
> >   # perf probe --cache -x /lib64/libc-2.17.so getaddrinfo \$params
> 
> But this one doesn't and provides a funny message:
> 
> [root@jouet perf]# perf probe --cache -x /lib64/libc-2.23.so getaddrinfo 
> \$params
> Failed to write event: Invalid argument
> Please upgrade your kernel to at least 3.14 to have access to feature $params
>   Error: Failed to add events.

Ah, OK, $params requires debuginfo. It this error message is not correct.
I'll send a fix soon.

Thanks!!


-- 
Masami Hiramatsu

Re: [PATCH perf/core v13 02/15] perf probe: Show all cached probes

2016-07-03 Thread Masami Hiramatsu

On Fri, 1 Jul 2016 10:51:04 -0300
Arnaldo Carvalho de Melo  wrote:

> Em Fri, Jul 01, 2016 at 05:03:26PM +0900, Masami Hiramatsu escreveu:
> > From: Masami Hiramatsu 
> > 
> > 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
> 
> This one works:
> 
> # perf probe --cache vfs_read \$params
> Added new event:
>   probe:vfs_read   (on vfs_read with $params)
> 
> You can now use it in all perf tools, such as:
> 
>   perf record -e probe:vfs_read -aR sleep 1
> 
> #
> 
> >   # perf probe --cache -x /lib64/libc-2.17.so getaddrinfo \$params
> 
> But this one doesn't and provides a funny message:
> 
> [root@jouet perf]# perf probe --cache -x /lib64/libc-2.23.so getaddrinfo 
> \$params
> Failed to write event: Invalid argument
> Please upgrade your kernel to at least 3.14 to have access to feature $params
>   Error: Failed to add events.

Ah, OK, $params requires debuginfo. It this error message is not correct.
I'll send a fix soon.

Thanks!!


-- 
Masami Hiramatsu

Re: [PATCH perf/core v13 02/15] perf probe: Show all cached probes

2016-07-01 Thread Arnaldo Carvalho de Melo

Em Fri, Jul 01, 2016 at 05:03:26PM +0900, Masami Hiramatsu escreveu:
> From: Masami Hiramatsu 
> 
> 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

This one works:

# perf probe --cache vfs_read \$params
Added new event:
  probe:vfs_read   (on vfs_read with $params)

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

perf record -e probe:vfs_read -aR sleep 1

#

>   # perf probe --cache -x /lib64/libc-2.17.so getaddrinfo \$params

But this one doesn't and provides a funny message:

[root@jouet perf]# perf probe --cache -x /lib64/libc-2.23.so getaddrinfo 
\$params
Failed to write event: Invalid argument
Please upgrade your kernel to at least 3.14 to have access to feature $params
  Error: Failed to add events.
[root@jouet perf]#

[root@jouet perf]# uname -a
Linux jouet 4.5.7-300.fc24.x86_64 #1 SMP Wed Jun 8 18:12:45 UTC 2016 x86_64 
x86_64 x86_64 GNU/Linux
[root@jouet perf]# cat /etc/fedora-release 
Fedora release 24 (Twenty Four)
[root@jouet perf]# 

- Arnaldo

>   # 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 
> Signed-off-by: Masami Hiramatsu 
> ---
>  Changes in v12:
>   - Rename strlist__for_each to strlist__for_each_entry.
>  Changes in v11:
>   - Make build_id_cache__list_all() returns strlist directly. (no error code)
>   - Harden build_id_cache__list_all() to check directory entries.
>  Changes in v7:
>   - Remove the top '/' from binary name if it is not a regular file.
> ---
>  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 947db6f..5a70d45 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 3426232..0bb9084 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 62b1473..1c49620 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(, 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 "../../" */
> + p = strrchr(buf, '/');  /* Cut off

Re: [PATCH perf/core v13 02/15] perf probe: Show all cached probes

2016-07-01 Thread Arnaldo Carvalho de Melo

Em Fri, Jul 01, 2016 at 05:03:26PM +0900, Masami Hiramatsu escreveu:
> From: Masami Hiramatsu 
> 
> 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

This one works:

# perf probe --cache vfs_read \$params
Added new event:
  probe:vfs_read   (on vfs_read with $params)

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

perf record -e probe:vfs_read -aR sleep 1

#

>   # perf probe --cache -x /lib64/libc-2.17.so getaddrinfo \$params

But this one doesn't and provides a funny message:

[root@jouet perf]# perf probe --cache -x /lib64/libc-2.23.so getaddrinfo 
\$params
Failed to write event: Invalid argument
Please upgrade your kernel to at least 3.14 to have access to feature $params
  Error: Failed to add events.
[root@jouet perf]#

[root@jouet perf]# uname -a
Linux jouet 4.5.7-300.fc24.x86_64 #1 SMP Wed Jun 8 18:12:45 UTC 2016 x86_64 
x86_64 x86_64 GNU/Linux
[root@jouet perf]# cat /etc/fedora-release 
Fedora release 24 (Twenty Four)
[root@jouet perf]# 

- Arnaldo

>   # 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 
> Signed-off-by: Masami Hiramatsu 
> ---
>  Changes in v12:
>   - Rename strlist__for_each to strlist__for_each_entry.
>  Changes in v11:
>   - Make build_id_cache__list_all() returns strlist directly. (no error code)
>   - Harden build_id_cache__list_all() to check directory entries.
>  Changes in v7:
>   - Remove the top '/' from binary name if it is not a regular file.
> ---
>  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 947db6f..5a70d45 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 3426232..0bb9084 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 62b1473..1c49620 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(, 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 "../../" */
> + p = strrchr(buf, '/');  /* Cut off the "/" */
> + if (p && (p > buf + offs)) {
> + *p = '\0';
> +

[PATCH perf/core v13 02/15] perf probe: Show all cached probes

2016-07-01 Thread Masami Hiramatsu

From: Masami Hiramatsu 

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 
Signed-off-by: Masami Hiramatsu 
---
 Changes in v12:
  - Rename strlist__for_each to strlist__for_each_entry.
 Changes in v11:
  - Make build_id_cache__list_all() returns strlist directly. (no error code)
  - Harden build_id_cache__list_all() to check directory entries.
 Changes in v7:
  - Remove the top '/' from binary name if it is not a regular file.
---
 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 947db6f..5a70d45 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 3426232..0bb9084 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 62b1473..1c49620 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(, 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 "../../" */
+   p = strrchr(buf, '/');  /* Cut off the "/" */
+   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]) &&

[PATCH perf/core v13 02/15] perf probe: Show all cached probes

2016-07-01 Thread Masami Hiramatsu

From: Masami Hiramatsu 

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 
Signed-off-by: Masami Hiramatsu 
---
 Changes in v12:
  - Rename strlist__for_each to strlist__for_each_entry.
 Changes in v11:
  - Make build_id_cache__list_all() returns strlist directly. (no error code)
  - Harden build_id_cache__list_all() to check directory entries.
 Changes in v7:
  - Remove the top '/' from binary name if it is not a regular file.
---
 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 947db6f..5a70d45 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 3426232..0bb9084 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 62b1473..1c49620 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(, 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 "../../" */
+   p = strrchr(buf, '/');  /* Cut off the "/" */
+   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

Re: [PATCH perf/core v13 02/15] perf probe: Show all cached probes

Re: [PATCH perf/core v13 02/15] perf probe: Show all cached probes

Re: [PATCH perf/core v13 02/15] perf probe: Show all cached probes

Re: [PATCH perf/core v13 02/15] perf probe: Show all cached probes

[PATCH perf/core v13 02/15] perf probe: Show all cached probes

[PATCH perf/core v13 02/15] perf probe: Show all cached probes

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