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perf annotate: Introduce symbol__cycle_hists()

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In this case we're wanting just notes->src->cycles_hist, 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-pqj81aneunhftlntm66tmhz0@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 17:17:05 -03:00
parent e8ea922a7e
commit c6b635eece
1 changed files with 14 additions and 10 deletions
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24
tools/perf/util/annotate.c
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@ -848,19 +848,23 @@ static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map,
return 0;
}
static struct annotation *symbol__get_annotation(struct symbol *sym, bool cycles)
static struct cyc_hist *symbol__cycles_hist(struct symbol *sym)
{
struct annotation *notes = symbol__annotation(sym);
if (notes->src == NULL) {
if (symbol__alloc_hist(sym) < 0)
notes->src = annotated_source__new();
if (notes->src == NULL)
return NULL;
goto alloc_cycles_hist;
}
if (!notes->src->cycles_hist && cycles) {
if (symbol__alloc_hist_cycles(sym) < 0)
return NULL;
if (!notes->src->cycles_hist) {
alloc_cycles_hist:
symbol__alloc_hist_cycles(sym);
}
return notes;
return notes->src->cycles_hist;
}
static struct annotated_source *symbol__hists(struct symbol *sym)
@ -900,13 +904,13 @@ static int symbol__inc_addr_samples(struct symbol *sym, struct map *map,
static int symbol__account_cycles(u64 addr, u64 start,
struct symbol *sym, unsigned cycles)
{
struct annotation *notes;
struct cyc_hist *cycles_hist;
unsigned offset;
if (sym == NULL)
return 0;
notes = symbol__get_annotation(sym, true);
if (notes == NULL)
cycles_hist = symbol__cycles_hist(sym);
if (cycles_hist == NULL)
return -ENOMEM;
if (addr < sym->start || addr >= sym->end)
return -ERANGE;
@ -918,7 +922,7 @@ static int symbol__account_cycles(u64 addr, u64 start,
start = 0;
}
offset = addr - sym->start;
return __symbol__account_cycles(notes->src->cycles_hist,
return __symbol__account_cycles(cycles_hist,
start ? start - sym->start : 0,
offset, cycles,
!!start);