[PATCH] perf, map: Don't try to find DSOs in SYSV maps

[PATCH] perf, map: Don't try to find DSOs in SYSV maps

[Don Zickus]

We are seeing a lot of the following with regards to SYSV memory

Failed to open /SYSV0000279c, continuing without symbols

We don't believe this memory will have DSO info, so treat it like the heap and
stack for now and skip it to prevent the warning.

Signed-off-by: Joe Mario <jmario@redhat.com>
Signed-off-by: Don Zickus <dzickus@redhat.com>
--
I am open to suggetions for a different fix - dcz
---
 tools/perf/util/map.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 25c571f..0294f40 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -29,6 +29,7 @@ static inline int is_anon_memory(const char *filename)
 static inline int is_no_dso_memory(const char *filename)
 {
 	return !strncmp(filename, "[stack", 6) ||
+	       !strncmp(filename, "/SYSV",5)   ||
 	       !strcmp(filename, "[heap]");
 }
 
-- 
1.7.1

Re: [PATCH] perf, map: Don't try to find DSOs in SYSV maps

[Arnaldo Carvalho de Melo]

Em Tue, Aug 19, 2014 at 10:31:14PM -0400, Don Zickus escreveu:
> We are seeing a lot of the following with regards to SYSV memory
> 
> Failed to open /SYSV0000279c, continuing without symbols
> 
> We don't believe this memory will have DSO info, so treat it like the heap and
> stack for now and skip it to prevent the warning.

Thanks, applied.
 
> Signed-off-by: Joe Mario <jmario@redhat.com>
> Signed-off-by: Don Zickus <dzickus@redhat.com>
> --
> I am open to suggetions for a different fix - dcz
> ---
>  tools/perf/util/map.c |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
> 
> diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
> index 25c571f..0294f40 100644
> --- a/tools/perf/util/map.c
> +++ b/tools/perf/util/map.c
> @@ -29,6 +29,7 @@ static inline int is_anon_memory(const char *filename)
>  static inline int is_no_dso_memory(const char *filename)
>  {
>  	return !strncmp(filename, "[stack", 6) ||
> +	       !strncmp(filename, "/SYSV",5)   ||
>  	       !strcmp(filename, "[heap]");
>  }
>  
> -- 
> 1.7.1

[tip:perf/core] perf symbols: Don't try to find DSOs in SYSV maps

[tip-bot for Don Zickus]

Commit-ID:  700be564308bcfc217bd3515d634b56f0c3c1bbb
Gitweb:     http://git.kernel.org/tip/700be564308bcfc217bd3515d634b56f0c3c1bbb
Author:     Don Zickus <dzickus@redhat.com>
AuthorDate: Tue, 19 Aug 2014 22:31:14 -0400
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Wed, 20 Aug 2014 08:26:09 -0300

perf symbols: Don't try to find DSOs in SYSV maps

We are seeing a lot of the following with regards to SYSV memory

Failed to open /SYSV0000279c, continuing without symbols

We don't believe this memory will have DSO info, so treat it like the
heap and stack for now and skip it to prevent the warning.

Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Joe Mario <jmario@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1408501874-244377-1-git-send-email-dzickus@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/map.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 31b8905..b709059 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -31,6 +31,7 @@ static inline int is_anon_memory(const char *filename)
 static inline int is_no_dso_memory(const char *filename)
 {
 	return !strncmp(filename, "[stack", 6) ||
+	       !strncmp(filename, "/SYSV",5)   ||
 	       !strcmp(filename, "[heap]");
 }