diff options
Diffstat (limited to 'tools/perf/util/event.c')
| -rw-r--r-- | tools/perf/util/event.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c index bc646185f8d9..aa9c7df120ca 100644 --- a/tools/perf/util/event.c +++ b/tools/perf/util/event.c @@ -1576,6 +1576,24 @@ struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr, return al->map; } +/* + * For branch stacks or branch samples, the sample cpumode might not be correct + * because it applies only to the sample 'ip' and not necessary to 'addr' or + * branch stack addresses. If possible, use a fallback to deal with those cases. + */ +struct map *thread__find_map_fb(struct thread *thread, u8 cpumode, u64 addr, + struct addr_location *al) +{ + struct map *map = thread__find_map(thread, cpumode, addr, al); + struct machine *machine = thread->mg->machine; + u8 addr_cpumode = machine__addr_cpumode(machine, cpumode, addr); + + if (map || addr_cpumode == cpumode) + return map; + + return thread__find_map(thread, addr_cpumode, addr, al); +} + struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode, u64 addr, struct addr_location *al) { @@ -1585,6 +1603,15 @@ struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode, return al->sym; } +struct symbol *thread__find_symbol_fb(struct thread *thread, u8 cpumode, + u64 addr, struct addr_location *al) +{ + al->sym = NULL; + if (thread__find_map_fb(thread, cpumode, addr, al)) + al->sym = map__find_symbol(al->map, al->addr); + return al->sym; +} + /* * Callers need to drop the reference to al->thread, obtained in * machine__findnew_thread() @@ -1678,7 +1705,7 @@ bool sample_addr_correlates_sym(struct perf_event_attr *attr) void thread__resolve(struct thread *thread, struct addr_location *al, struct perf_sample *sample) { - thread__find_map(thread, sample->cpumode, sample->addr, al); + thread__find_map_fb(thread, sample->cpumode, sample->addr, al); al->cpu = sample->cpu; al->sym = NULL; |