diff options
| author | Jiri Olsa | 2020-02-10 15:32:17 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo | 2020-02-11 16:41:49 -0300 |
| commit | 7ce66139a99ce57caaf47b64afed5cb6ed02c5ed (patch) | |
| tree | f9e5dcca63ca36259006f0d5dde1f7e67bdf4cd7 /tools/perf | |
| parent | 4a4eb6154d67f7766cc7eb74e9f1db424073e832 (diff) | |
perf maps: Fix map__clone() for struct kmap
The map__clone() function can be called on kernel maps as well, so it
needs to duplicate the whole kmap data.
Reported-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Tested-by: Kim Phillips <kim.phillips@amd.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20200210143218.24948-4-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/util/map.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index f67960bedebb..cea05fc9595c 100644 --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -375,8 +375,13 @@ struct symbol *map__find_symbol_by_name(struct map *map, const char *name) struct map *map__clone(struct map *from) { - struct map *map = memdup(from, sizeof(*map)); + size_t size = sizeof(struct map); + struct map *map; + + if (from->dso && from->dso->kernel) + size += sizeof(struct kmap); + map = memdup(from, size); if (map != NULL) { refcount_set(&map->refcnt, 1); RB_CLEAR_NODE(&map->rb_node); |