From 076c6e45215aea0de1ed34d3d5079fabeaabf5e1 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Mon, 2 Aug 2010 18:18:28 -0300 Subject: perf session: Free the ref_reloc_sym memory at the right place Which is at perf_session__destroy_kernel_maps, counterpart to the perf_session__create_kernel_maps where the kmap structure is located, just after the vmlinux_maps. Make it also check if the kernel maps were actually created, which may not be the case if, for instance, perf_session__new can't complete due to permission problems in, for instance, a 'perf report' case, when a segfault will take place, that is how this was noticed. The problem was introduced in d65a458, thus post .35. This also adds code to release guest machines as them are also created in perf_session__create_kernel_maps, so should be deleted on this newly introduced counterpart, perf_session__destroy_kernel_maps. Cc: Frederic Weisbecker Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Stephane Eranian LKML-Reference: Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/map.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'tools/perf/util/map.h') diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h index 0e0984e86fce..5b51bbd2f734 100644 --- a/tools/perf/util/map.h +++ b/tools/perf/util/map.h @@ -125,6 +125,7 @@ void map__reloc_vmlinux(struct map *self); size_t __map_groups__fprintf_maps(struct map_groups *self, enum map_type type, int verbose, FILE *fp); void maps__insert(struct rb_root *maps, struct map *map); +void maps__remove(struct rb_root *self, struct map *map); struct map *maps__find(struct rb_root *maps, u64 addr); void map_groups__init(struct map_groups *self); void map_groups__exit(struct map_groups *self); @@ -144,6 +145,7 @@ struct machine *machines__findnew(struct rb_root *self, pid_t pid); char *machine__mmap_name(struct machine *self, char *bf, size_t size); int machine__init(struct machine *self, const char *root_dir, pid_t pid); void machine__exit(struct machine *self); +void machine__delete(struct machine *self); /* * Default guest kernel is defined by parameter --guestkallsyms @@ -165,6 +167,11 @@ static inline void map_groups__insert(struct map_groups *self, struct map *map) map->groups = self; } +static inline void map_groups__remove(struct map_groups *self, struct map *map) +{ + maps__remove(&self->maps[map->type], map); +} + static inline struct map *map_groups__find(struct map_groups *self, enum map_type type, u64 addr) { -- cgit v1.2.3