diff options
Diffstat (limited to 'tools/perf/util/map.c')
| -rw-r--r-- | tools/perf/util/map.c | 116 |
1 files changed, 85 insertions, 31 deletions
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index e672f2fef65b..3a7eb6ec0eec 100644 --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -17,16 +17,6 @@ static inline int is_anon_memory(const char *filename) return strcmp(filename, "//anon") == 0; } -static int strcommon(const char *pathname, char *cwd, int cwdlen) -{ - int n = 0; - - while (n < cwdlen && pathname[n] == cwd[n]) - ++n; - - return n; -} - void map__init(struct map *self, enum map_type type, u64 start, u64 end, u64 pgoff, struct dso *dso) { @@ -39,11 +29,12 @@ void map__init(struct map *self, enum map_type type, self->unmap_ip = map__unmap_ip; RB_CLEAR_NODE(&self->rb_node); self->groups = NULL; + self->referenced = false; } struct map *map__new(struct list_head *dsos__list, u64 start, u64 len, u64 pgoff, u32 pid, char *filename, - enum map_type type, char *cwd, int cwdlen) + enum map_type type) { struct map *self = malloc(sizeof(*self)); @@ -52,16 +43,6 @@ struct map *map__new(struct list_head *dsos__list, u64 start, u64 len, struct dso *dso; int anon; - if (cwd) { - int n = strcommon(filename, cwd, cwdlen); - - if (n == cwdlen) { - snprintf(newfilename, sizeof(newfilename), - ".%s", filename + n); - filename = newfilename; - } - } - anon = is_anon_memory(filename); if (anon) { @@ -248,6 +229,39 @@ void map_groups__init(struct map_groups *self) self->machine = NULL; } +static void maps__delete(struct rb_root *self) +{ + struct rb_node *next = rb_first(self); + + while (next) { + struct map *pos = rb_entry(next, struct map, rb_node); + + next = rb_next(&pos->rb_node); + rb_erase(&pos->rb_node, self); + map__delete(pos); + } +} + +static void maps__delete_removed(struct list_head *self) +{ + struct map *pos, *n; + + list_for_each_entry_safe(pos, n, self, node) { + list_del(&pos->node); + map__delete(pos); + } +} + +void map_groups__exit(struct map_groups *self) +{ + int i; + + for (i = 0; i < MAP__NR_TYPES; ++i) { + maps__delete(&self->maps[i]); + maps__delete_removed(&self->removed_maps[i]); + } +} + void map_groups__flush(struct map_groups *self) { int type; @@ -374,6 +388,7 @@ int map_groups__fixup_overlappings(struct map_groups *self, struct map *map, { struct rb_root *root = &self->maps[map->type]; struct rb_node *next = rb_first(root); + int err = 0; while (next) { struct map *pos = rb_entry(next, struct map, rb_node); @@ -390,20 +405,16 @@ int map_groups__fixup_overlappings(struct map_groups *self, struct map *map, rb_erase(&pos->rb_node, root); /* - * We may have references to this map, for instance in some - * hist_entry instances, so just move them to a separate - * list. - */ - list_add_tail(&pos->node, &self->removed_maps[map->type]); - /* * Now check if we need to create new maps for areas not * overlapped by the new map: */ if (map->start > pos->start) { struct map *before = map__clone(pos); - if (before == NULL) - return -ENOMEM; + if (before == NULL) { + err = -ENOMEM; + goto move_map; + } before->end = map->start - 1; map_groups__insert(self, before); @@ -414,14 +425,27 @@ int map_groups__fixup_overlappings(struct map_groups *self, struct map *map, if (map->end < pos->end) { struct map *after = map__clone(pos); - if (after == NULL) - return -ENOMEM; + if (after == NULL) { + err = -ENOMEM; + goto move_map; + } after->start = map->end + 1; map_groups__insert(self, after); if (verbose >= 2) map__fprintf(after, fp); } +move_map: + /* + * If we have references, just move them to a separate list. + */ + if (pos->referenced) + list_add_tail(&pos->node, &self->removed_maps[map->type]); + else + map__delete(pos); + + if (err) + return err; } return 0; @@ -493,6 +517,11 @@ 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; @@ -526,6 +555,31 @@ int machine__init(struct machine *self, const char *root_dir, pid_t pid) return self->root_dir == NULL ? -ENOMEM : 0; } +static void dsos__delete(struct list_head *self) +{ + struct dso *pos, *n; + + list_for_each_entry_safe(pos, n, self, node) { + list_del(&pos->node); + dso__delete(pos); + } +} + +void machine__exit(struct machine *self) +{ + map_groups__exit(&self->kmaps); + dsos__delete(&self->user_dsos); + dsos__delete(&self->kernel_dsos); + free(self->root_dir); + 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) { |