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| author |   Jiri Olsa <jolsa@kernel.org> | 2016-07-04 14:16:23 +0200 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-07-04 20:27:25 -0300 |
| commit | 6c502584438bda63fc1a67606854fb0b300465cd (patch) | |
| tree | 670c04d2c278b314f4698922f6778aa73c6e963d /tools/perf/util/map.h | |
| parent | perf unwind: Add initialized arg into unwind__prepare_access (diff) | |
| download | linux-dev-6c502584438bda63fc1a67606854fb0b300465cd.tar.xz linux-dev-6c502584438bda63fc1a67606854fb0b300465cd.zip | |
perf unwind: Call unwind__prepare_access for forked thread
Currently we call unwind__prepare_access for map event. In case we
report fork event the thread inherits its parent's maps and
unwind__prepare_access is never called for the thread.
This causes unwind__get_entries seeing uninitialized
unwind_libunwind_ops and thus returning no callchain.
Adding unwind__prepare_access calls for fork even processing.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1467634583-29147-5-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/map.h')
| -rw-r--r-- | tools/perf/util/map.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h index 7309d64ce39e..d83396ceecba 100644 --- a/tools/perf/util/map.h +++ b/tools/perf/util/map.h @@ -194,7 +194,7 @@ struct symbol *maps__find_symbol_by_name(struct maps *maps, const char *name, struct map **mapp, symbol_filter_t filter); void map_groups__init(struct map_groups *mg, struct machine *machine); void map_groups__exit(struct map_groups *mg); -int map_groups__clone(struct map_groups *mg, +int map_groups__clone(struct thread *thread, struct map_groups *parent, enum map_type type); size_t map_groups__fprintf(struct map_groups *mg, FILE *fp); |