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authorArnaldo Carvalho de Melo <acme@redhat.com>2010-07-30 18:31:28 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2010-07-30 18:31:28 -0300
commitd65a458b348cd458413b3cfec66e43ebd0367646 (patch)
tree984d730e5a81e4ae7c04b9f664d8a1cacdd0c6e6 /tools/perf
parent591765fdaf7ea1888157f342b67b0461f2e5ed9b (diff)
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perf tools: Release session and symbol resources on exit
So that we reduce the noise when looking for leaks using tools such as valgrind. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
-rw-r--r--tools/perf/builtin-record.c5
-rw-r--r--tools/perf/util/event.c5
-rw-r--r--tools/perf/util/map.c26
-rw-r--r--tools/perf/util/map.h1
-rw-r--r--tools/perf/util/session.c26
-rw-r--r--tools/perf/util/symbol.c9
-rw-r--r--tools/perf/util/symbol.h1
7 files changed, 70 insertions, 3 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 5ae0d93d859..ff77b805de7 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -440,6 +440,7 @@ static void atexit_header(void)
process_buildids();
perf_header__write(&session->header, output, true);
perf_session__delete(session);
+ symbol__exit();
}
}
@@ -871,7 +872,7 @@ int cmd_record(int argc, const char **argv, const char *prefix __used)
} else {
all_tids=malloc(sizeof(pid_t));
if (!all_tids)
- return -ENOMEM;
+ goto out_symbol_exit;
all_tids[0] = target_tid;
thread_num = 1;
@@ -918,5 +919,7 @@ out_free_fd:
}
free(all_tids);
all_tids = NULL;
+out_symbol_exit:
+ symbol__exit();
return err;
}
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 8151d23664c..6b0db557792 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -515,12 +515,13 @@ int event__process_mmap(event_t *self, struct perf_session *session)
if (machine == NULL)
goto out_problem;
thread = perf_session__findnew(session, self->mmap.pid);
+ if (thread == NULL)
+ goto out_problem;
map = map__new(&machine->user_dsos, self->mmap.start,
self->mmap.len, self->mmap.pgoff,
self->mmap.pid, self->mmap.filename,
MAP__FUNCTION);
-
- if (thread == NULL || map == NULL)
+ if (map == NULL)
goto out_problem;
thread__insert_map(thread, map);
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 2ddbae319de..15d6a6dd50c 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -539,6 +539,32 @@ 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)
+{
+ 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);
+ free(self->root_dir);
+ self->root_dir = NULL;
+}
+
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 20eba420dda..0e0984e86fc 100644
--- a/tools/perf/util/map.h
+++ b/tools/perf/util/map.h
@@ -143,6 +143,7 @@ struct machine *machines__find(struct rb_root *self, pid_t pid);
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);
/*
* Default guest kernel is defined by parameter --guestkallsyms
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 8cbea122e34..04a3b3db9e9 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -124,9 +124,35 @@ out_delete:
return NULL;
}
+static void perf_session__delete_dead_threads(struct perf_session *self)
+{
+ struct thread *n, *t;
+
+ list_for_each_entry_safe(t, n, &self->dead_threads, node) {
+ list_del(&t->node);
+ thread__delete(t);
+ }
+}
+
+static void perf_session__delete_threads(struct perf_session *self)
+{
+ struct rb_node *nd = rb_first(&self->threads);
+
+ while (nd) {
+ struct thread *t = rb_entry(nd, struct thread, rb_node);
+
+ rb_erase(&t->rb_node, &self->threads);
+ nd = rb_next(nd);
+ thread__delete(t);
+ }
+}
+
void perf_session__delete(struct perf_session *self)
{
perf_header__exit(&self->header);
+ perf_session__delete_dead_threads(self);
+ perf_session__delete_threads(self);
+ machine__exit(&self->host_machine);
close(self->fd);
free(self);
}
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index d99497ec52a..94cdf68440c 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -2245,6 +2245,15 @@ out_free_comm_list:
return -1;
}
+void symbol__exit(void)
+{
+ strlist__delete(symbol_conf.sym_list);
+ strlist__delete(symbol_conf.dso_list);
+ strlist__delete(symbol_conf.comm_list);
+ vmlinux_path__exit();
+ symbol_conf.sym_list = symbol_conf.dso_list = symbol_conf.comm_list = NULL;
+}
+
int machines__create_kernel_maps(struct rb_root *self, pid_t pid)
{
struct machine *machine = machines__findnew(self, pid);
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index f29f73c2080..33d53ce2895 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -219,6 +219,7 @@ int machines__create_kernel_maps(struct rb_root *self, pid_t pid);
int machines__create_guest_kernel_maps(struct rb_root *self);
int symbol__init(void);
+void symbol__exit(void);
bool symbol_type__is_a(char symbol_type, enum map_type map_type);
size_t machine__fprintf_vmlinux_path(struct machine *self, FILE *fp);