diff options
Diffstat (limited to 'tools/perf/util/map.c')
| -rw-r--r-- | tools/perf/util/map.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index b19bcd3b7..728129ac6 100644 --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -15,6 +15,7 @@ #include "debug.h" #include "machine.h" #include <linux/string.h> +#include "unwind.h" static void __maps__insert(struct maps *maps, struct map *map); @@ -311,6 +312,9 @@ int map__load(struct map *map, symbol_filter_t filter) pr_warning("%.*s was updated (is prelink enabled?). " "Restart the long running apps that use it!\n", (int)real_len, name); + } else if (filter) { + pr_warning("no symbols passed the given filter.\n"); + return -2; /* Empty but maybe by the filter */ } else { pr_warning("no symbols found in %s, maybe install " "a debug package?\n", name); @@ -744,9 +748,10 @@ int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map, /* * XXX This should not really _copy_ te maps, but refcount them. */ -int map_groups__clone(struct map_groups *mg, +int map_groups__clone(struct thread *thread, struct map_groups *parent, enum map_type type) { + struct map_groups *mg = thread->mg; int err = -ENOMEM; struct map *map; struct maps *maps = &parent->maps[type]; @@ -757,6 +762,11 @@ int map_groups__clone(struct map_groups *mg, struct map *new = map__clone(map); if (new == NULL) goto out_unlock; + + err = unwind__prepare_access(thread, new, NULL); + if (err) + goto out_unlock; + map_groups__insert(mg, new); map__put(new); } |