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perf annotation: Add symbol__get_annotation

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Add a new utility function to get an function annotation out of existing
code.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1432749114-904-4-git-send-email-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Andi Kleen 2015-05-27 10:51:46 -07:00 • committed by Arnaldo Carvalho de Melo
commit 83be34a7a9
1 changed files with 14 additions and 7 deletions
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19
tools/perf/util/annotate.c
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@ -506,6 +506,17 @@ static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map,
return 0;
}
static struct annotation *symbol__get_annotation(struct symbol *sym)
{
struct annotation *notes = symbol__annotation(sym);
if (notes->src == NULL) {
if (symbol__alloc_hist(sym) < 0)
return NULL;
}
return notes;
}
static int symbol__inc_addr_samples(struct symbol *sym, struct map *map,
int evidx, u64 addr)
{
@ -513,13 +524,9 @@ static int symbol__inc_addr_samples(struct symbol *sym, struct map *map,
if (sym == NULL)
return 0;
notes = symbol__annotation(sym);
if (notes->src == NULL) {
if (symbol__alloc_hist(sym) < 0)
notes = symbol__get_annotation(sym);
if (notes == NULL)
return -ENOMEM;
}
return __symbol__inc_addr_samples(sym, map, notes, evidx, addr);
}