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authorIan Lance Taylor <ian@gcc.gnu.org>2018-06-28 20:54:04 +0000
committerIan Lance Taylor <ian@gcc.gnu.org>2018-06-28 20:54:04 +0000
commit94e12bd4d9b7de6cc4a084c7b453a0e26210f56e (patch)
treeae65c319bfeb98b4332946ac7f27375be3ba4e03 /libgo
parenteacb16dc798d06acfb9741a2496584ab0728257a (diff)
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runtime: don't stat a NULL filename
Noticed in https://gcc.gnu.org/PR86331. Reviewed-on: https://go-review.googlesource.com/121417 From-SVN: r262234
Diffstat (limited to 'libgo')
-rw-r--r--libgo/runtime/go-caller.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libgo/runtime/go-caller.c b/libgo/runtime/go-caller.c
index 6b26ddc..7f36955 100644
--- a/libgo/runtime/go-caller.c
+++ b/libgo/runtime/go-caller.c
@@ -116,7 +116,7 @@ __go_get_backtrace_state ()
argv[0] (http://gcc.gnu.org/PR61895). It would be nice to
have a better check for whether this file is the real
executable. */
- if (stat (filename, &s) < 0 || s.st_size < 1024)
+ if (filename != NULL && (stat (filename, &s) < 0 || s.st_size < 1024))
filename = NULL;
back_state = backtrace_create_state (filename, 1, error_callback, NULL);