* [Perf bug-fix] check null of sym pointer before using it
@ 2012-06-05 5:14 Shan Wei
2012-06-11 2:07 ` Shan Wei
2012-06-20 17:01 ` [tip:perf/core] perf annotate: Check " tip-bot for Samuel Liao
0 siblings, 2 replies; 4+ messages in thread
From: Shan Wei @ 2012-06-05 5:14 UTC (permalink / raw)
To: a.p.zijlstra, paulus, mingo, acme, namhyung.kim, Kernel-Maillist
Cc: Samuel Liao
From: Samuel Liao <samuelliao@tencent.com>
Sometimes, sym will be null that causing perf crash.
Signed-off-by: Shan Wei <davidshan@tencent.com>
---
tools/perf/ui/browsers/annotate.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index 4deea6a..50873a8 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -814,7 +814,7 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx,
{
struct disasm_line *pos, *n;
struct annotation *notes;
- const size_t size = symbol__size(sym);
+ size_t size;
struct map_symbol ms = {
.map = map,
.sym = sym,
@@ -834,6 +834,8 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx,
if (sym == NULL)
return -1;
+ size = symbol__size(sym);
+
if (map->dso->annotate_warned)
return -1;
--
1.7.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [Perf bug-fix] check null of sym pointer before using it
2012-06-05 5:14 [Perf bug-fix] check null of sym pointer before using it Shan Wei
@ 2012-06-11 2:07 ` Shan Wei
2012-06-11 4:45 ` Namhyung Kim
2012-06-20 17:01 ` [tip:perf/core] perf annotate: Check " tip-bot for Samuel Liao
1 sibling, 1 reply; 4+ messages in thread
From: Shan Wei @ 2012-06-11 2:07 UTC (permalink / raw)
To: a.p.zijlstra, paulus, mingo, acme, namhyung.kim, Kernel-Maillist
Cc: Samuel Liao
ping.....
It's a obvious function bug.....
Shan Wei said, at 2012/6/5 13:14:
> From: Samuel Liao <samuelliao@tencent.com>
>
> Sometimes, sym will be null that causing perf crash.
>
> Signed-off-by: Shan Wei <davidshan@tencent.com>
> ---
> tools/perf/ui/browsers/annotate.c | 4 +++-
> 1 files changed, 3 insertions(+), 1 deletions(-)
>
> diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
> index 4deea6a..50873a8 100644
> --- a/tools/perf/ui/browsers/annotate.c
> +++ b/tools/perf/ui/browsers/annotate.c
> @@ -814,7 +814,7 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx,
> {
> struct disasm_line *pos, *n;
> struct annotation *notes;
> - const size_t size = symbol__size(sym);
> + size_t size;
> struct map_symbol ms = {
> .map = map,
> .sym = sym,
> @@ -834,6 +834,8 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx,
> if (sym == NULL)
> return -1;
>
> + size = symbol__size(sym);
> +
> if (map->dso->annotate_warned)
> return -1;
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Perf bug-fix] check null of sym pointer before using it
2012-06-11 2:07 ` Shan Wei
@ 2012-06-11 4:45 ` Namhyung Kim
0 siblings, 0 replies; 4+ messages in thread
From: Namhyung Kim @ 2012-06-11 4:45 UTC (permalink / raw)
To: Shan Wei
Cc: a.p.zijlstra, paulus, mingo, acme, namhyung.kim, Kernel-Maillist,
Samuel Liao
Hi,
On Mon, 11 Jun 2012 10:07:10 +0800, Shan Wei wrote:
> ping.....
>
> It's a obvious function bug.....
>
> Shan Wei said, at 2012/6/5 13:14:
>
>> From: Samuel Liao <samuelliao@tencent.com>
>>
>> Sometimes, sym will be null that causing perf crash.
>>
>> Signed-off-by: Shan Wei <davidshan@tencent.com>
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Thanks for the fix.
Namhyung
>> ---
>> tools/perf/ui/browsers/annotate.c | 4 +++-
>> 1 files changed, 3 insertions(+), 1 deletions(-)
>>
>> diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
>> index 4deea6a..50873a8 100644
>> --- a/tools/perf/ui/browsers/annotate.c
>> +++ b/tools/perf/ui/browsers/annotate.c
>> @@ -814,7 +814,7 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx,
>> {
>> struct disasm_line *pos, *n;
>> struct annotation *notes;
>> - const size_t size = symbol__size(sym);
>> + size_t size;
>> struct map_symbol ms = {
>> .map = map,
>> .sym = sym,
>> @@ -834,6 +834,8 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx,
>> if (sym == NULL)
>> return -1;
>>
>> + size = symbol__size(sym);
>> +
>> if (map->dso->annotate_warned)
>> return -1;
>>
^ permalink raw reply [flat|nested] 4+ messages in thread
* [tip:perf/core] perf annotate: Check null of sym pointer before using it
2012-06-05 5:14 [Perf bug-fix] check null of sym pointer before using it Shan Wei
2012-06-11 2:07 ` Shan Wei
@ 2012-06-20 17:01 ` tip-bot for Samuel Liao
1 sibling, 0 replies; 4+ messages in thread
From: tip-bot for Samuel Liao @ 2012-06-20 17:01 UTC (permalink / raw)
To: linux-tip-commits
Cc: acme, linux-kernel, paulus, mingo, hpa, mingo, davidshan,
a.p.zijlstra, namhyung.kim, samuelliao, tglx
Commit-ID: c0a58fb2bdf033df433cad9009c7dac4c6b872b0
Gitweb: http://git.kernel.org/tip/c0a58fb2bdf033df433cad9009c7dac4c6b872b0
Author: Samuel Liao <samuelliao@tencent.com>
AuthorDate: Tue, 5 Jun 2012 13:14:59 +0800
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Tue, 19 Jun 2012 14:30:26 -0300
perf annotate: Check null of sym pointer before using it
Sym may be NULL, and that will cause perf to crash.
Signed-off-by: Shan Wei <davidshan@tencent.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/4FCD95D3.90209@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/ui/browsers/annotate.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index 34b1c46..67a2703 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -814,7 +814,7 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx,
{
struct disasm_line *pos, *n;
struct annotation *notes;
- const size_t size = symbol__size(sym);
+ size_t size;
struct map_symbol ms = {
.map = map,
.sym = sym,
@@ -834,6 +834,8 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx,
if (sym == NULL)
return -1;
+ size = symbol__size(sym);
+
if (map->dso->annotate_warned)
return -1;
^ permalink raw reply related [flat|nested] 4+ messages in thread
end of thread, other threads:[~2012-06-20 17:03 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2012-06-05 5:14 [Perf bug-fix] check null of sym pointer before using it Shan Wei
2012-06-11 2:07 ` Shan Wei
2012-06-11 4:45 ` Namhyung Kim
2012-06-20 17:01 ` [tip:perf/core] perf annotate: Check " tip-bot for Samuel Liao
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