Perf invoke symbol__init function twice when we input command "perf
kmem/sched record ls", then it will core dump when symbol__exit
invoked.
So give a flag to make symbol__init can be invoked once.
Signed-off-by: Jovi Zhang <bookjovi@gmail.com>
tools/perf/util/symbol.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 1a36773..aded121 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -43,6 +43,8 @@ struct symbol_conf symbol_conf = {
.try_vmlinux_path = true,
};
+static bool symbol_initizated;
+
int dso__name_len(const struct dso *self)
{
if (verbose)
@@ -2268,6 +2270,11 @@ static int setup_list(struct strlist **list,
const char *list_str,
int symbol__init(void)
{
+ if (symbol_initizated == true)
+ return 0;
+ else
+ symbol_initizated = true;
+
elf_version(EV_CURRENT);
if (symbol_conf.sort_by_name)
symbol_conf.priv_size += (sizeof(struct symbol_name_rb_node) -
@@ -2304,6 +2311,8 @@ out_free_comm_list:
void symbol__exit(void)
{
+ if (symbol_initizated == false)
+ return;
strlist__delete(symbol_conf.sym_list);
strlist__delete(symbol_conf.dso_list);
strlist__delete(symbol_conf.comm_list);
--
