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perf annotate: Introduce symbol__hists() 

In this case we're wanting just notes->src->histograms, allocating it if needed.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-4iatualjskia7sojmdb65cmm@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2018-05-24 16:37:53 -03:00
parent e1a91a834d
commit e8ea922a7e
1 changed files with 24 additions and 4 deletions
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28
tools/perf/util/annotate.c
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@ -863,18 +863,38 @@ static struct annotation *symbol__get_annotation(struct symbol *sym, bool cycles
return notes; return notes;
} }
static struct annotated_source *symbol__hists(struct symbol *sym)
{
struct annotation *notes = symbol__annotation(sym);
if (notes->src == NULL) {
notes->src = annotated_source__new();
if (notes->src == NULL)
return NULL;
goto alloc_histograms;
}
if (notes->src->histograms == NULL) {
alloc_histograms:
annotated_source__alloc_histograms(notes->src, symbol__size(sym),
symbol_conf.nr_events);
}
return notes->src;
}
static int symbol__inc_addr_samples(struct symbol *sym, struct map *map, static int symbol__inc_addr_samples(struct symbol *sym, struct map *map,
struct perf_evsel *evsel, u64 addr, struct perf_evsel *evsel, u64 addr,
struct perf_sample *sample) struct perf_sample *sample)
{ {
struct annotation *notes; struct annotated_source *src;
if (sym == NULL) if (sym == NULL)
return 0; return 0;
notes = symbol__get_annotation(sym, false); src = symbol__hists(sym);
if (notes == NULL) if (src == NULL)
return -ENOMEM; return -ENOMEM;
return __symbol__inc_addr_samples(sym, map, notes->src, evsel->idx, addr, sample); return __symbol__inc_addr_samples(sym, map, src, evsel->idx, addr, sample);
} }
static int symbol__account_cycles(u64 addr, u64 start, static int symbol__account_cycles(u64 addr, u64 start,