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>

1 files changed, 9 insertions, 0 deletions

diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index d99497ec52aa..94cdf68440cd 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);