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perf script: Use thread__find_symbol() instead of ad-hoc equivalent 

In dc323ce8e7 ("perf script: Enable printing of branch stack") it
first tries to find the map for an address, then the symbol in the DSO
backing that map, for that address, well, this is what
thread__find_symbol() does, so just use it and make the code shorter.

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: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-03nx3aod955yqnf9l06im28j@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2018-04-24 11:32:30 -03:00
parent 4546263d72
commit cc5f02f2be
1 changed files with 2 additions and 7 deletions
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9
tools/perf/builtin-script.c
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@ -764,13 +764,8 @@ static int perf_sample__fprintf_brstacksym(struct perf_sample *sample,
from = br->entries[i].from;
to = br->entries[i].to;
thread__find_map(thread, sample->cpumode, from, &alf);
if (alf.map)
alf.sym = map__find_symbol(alf.map, alf.addr);
thread__find_map(thread, sample->cpumode, to, &alt);
if (alt.map)
alt.sym = map__find_symbol(alt.map, alt.addr);
thread__find_symbol(thread, sample->cpumode, from, &alf);
thread__find_symbol(thread, sample->cpumode, to, &alt);
printed += symbol__fprintf_symname_offs(alf.sym, &alf, fp);
if (PRINT_FIELD(DSO)) {