diff options
| -rw-r--r-- | tools/perf/util/map.c | 18 | ||||
| -rw-r--r-- | tools/perf/util/map.h | 7 | ||||
| -rw-r--r-- | tools/perf/util/session.c | 7 | ||||
| -rw-r--r-- | tools/perf/util/symbol.c | 43 | ||||
| -rw-r--r-- | tools/perf/util/symbol.h | 2 |
5 files changed, 70 insertions, 7 deletions
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index 15d6a6dd50c..801e6962b0a 100644 --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -506,6 +506,11 @@ void maps__insert(struct rb_root *maps, struct map *map) rb_insert_color(&map->rb_node, maps); } +void maps__remove(struct rb_root *self, struct map *map) +{ + rb_erase(&map->rb_node, self); +} + struct map *maps__find(struct rb_root *maps, u64 ip) { struct rb_node **p = &maps->rb_node; @@ -551,13 +556,6 @@ static void dsos__delete(struct list_head *self) void machine__exit(struct machine *self) { - struct kmap *kmap = map__kmap(self->vmlinux_maps[MAP__FUNCTION]); - - if (kmap->ref_reloc_sym) { - free((char *)kmap->ref_reloc_sym->name); - free(kmap->ref_reloc_sym); - } - map_groups__exit(&self->kmaps); dsos__delete(&self->user_dsos); dsos__delete(&self->kernel_dsos); @@ -565,6 +563,12 @@ void machine__exit(struct machine *self) self->root_dir = NULL; } +void machine__delete(struct machine *self) +{ + machine__exit(self); + free(self); +} + struct machine *machines__add(struct rb_root *self, pid_t pid, const char *root_dir) { diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h index 0e0984e86fc..5b51bbd2f73 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) { diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 04a3b3db9e9..5d2fd52fe7b 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -79,6 +79,12 @@ int perf_session__create_kernel_maps(struct perf_session *self) return ret; } +static void perf_session__destroy_kernel_maps(struct perf_session *self) +{ + machine__destroy_kernel_maps(&self->host_machine); + machines__destroy_guest_kernel_maps(&self->machines); +} + struct perf_session *perf_session__new(const char *filename, int mode, bool force, bool repipe) { size_t len = filename ? strlen(filename) + 1 : 0; @@ -150,6 +156,7 @@ static void perf_session__delete_threads(struct perf_session *self) void perf_session__delete(struct perf_session *self) { perf_header__exit(&self->header); + perf_session__destroy_kernel_maps(self); perf_session__delete_dead_threads(self); perf_session__delete_threads(self); machine__exit(&self->host_machine); diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 3b8c0050667..6f0dd90c36c 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -2107,6 +2107,36 @@ int __machine__create_kernel_maps(struct machine *self, struct dso *kernel) return 0; } +void machine__destroy_kernel_maps(struct machine *self) +{ + enum map_type type; + + for (type = 0; type < MAP__NR_TYPES; ++type) { + struct kmap *kmap; + + if (self->vmlinux_maps[type] == NULL) + continue; + + kmap = map__kmap(self->vmlinux_maps[type]); + map_groups__remove(&self->kmaps, self->vmlinux_maps[type]); + if (kmap->ref_reloc_sym) { + /* + * ref_reloc_sym is shared among all maps, so free just + * on one of them. + */ + if (type == MAP__FUNCTION) { + free((char *)kmap->ref_reloc_sym->name); + kmap->ref_reloc_sym->name = NULL; + free(kmap->ref_reloc_sym); + } + kmap->ref_reloc_sym = NULL; + } + + map__delete(self->vmlinux_maps[type]); + self->vmlinux_maps[type] = NULL; + } +} + int machine__create_kernel_maps(struct machine *self) { struct dso *kernel = machine__create_kernel(self); @@ -2351,6 +2381,19 @@ failure: return ret; } +void machines__destroy_guest_kernel_maps(struct rb_root *self) +{ + struct rb_node *next = rb_first(self); + + while (next) { + struct machine *pos = rb_entry(next, struct machine, rb_node); + + next = rb_next(&pos->rb_node); + rb_erase(&pos->rb_node, self); + machine__delete(pos); + } +} + int machine__load_kallsyms(struct machine *self, const char *filename, enum map_type type, symbol_filter_t filter) { diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index 33d53ce2895..906be20011d 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -212,11 +212,13 @@ int kallsyms__parse(const char *filename, void *arg, int (*process_symbol)(void *arg, const char *name, char type, u64 start)); +void machine__destroy_kernel_maps(struct machine *self); int __machine__create_kernel_maps(struct machine *self, struct dso *kernel); int machine__create_kernel_maps(struct machine *self); int machines__create_kernel_maps(struct rb_root *self, pid_t pid); int machines__create_guest_kernel_maps(struct rb_root *self); +void machines__destroy_guest_kernel_maps(struct rb_root *self); int symbol__init(void); void symbol__exit(void); |