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-rw-r--r--tools/perf/util/map.c116
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)
{