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authorJiri Olsa <jolsa@kernel.org>2020-02-10 17:32:17 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2020-02-11 22:41:49 +0300
commit7ce66139a99ce57caaf47b64afed5cb6ed02c5ed (patch)
treef9e5dcca63ca36259006f0d5dde1f7e67bdf4cd7 /tools
parent4a4eb6154d67f7766cc7eb74e9f1db424073e832 (diff)
downloadlinux-7ce66139a99ce57caaf47b64afed5cb6ed02c5ed.tar.xz
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')
-rw-r--r--tools/perf/util/map.c7
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);