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perf sort: Check for SRCLINE_UNKNOWN case in "srcfile" processing

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Handle the SRCLINE_UNKNOWN case correctly when processing "srcfile".

Commiter note:

We can't just free it, as it was't allocated via malloc, its a guard
variable.

Reported-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20150811133655.GC4524@tassilo.jf.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Andi Kleen 2015-08-11 06:36:55 -07:00 committed by Arnaldo Carvalho de Melo
parent 28ebb87c73
commit 76b1065581
1 changed files with 2 additions and 0 deletions
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2
tools/perf/util/sort.c
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@ -330,6 +330,8 @@ static char *get_srcfile(struct hist_entry *e)
sf = get_srcline(map->dso, map__rip_2objdump(map, e->ip),
e->ms.sym, true);
if (!strcmp(sf, SRCLINE_UNKNOWN))
return no_srcfile;
p = strchr(sf, ':');
if (p && *sf) {
*p = 0;