diff options
Diffstat (limited to 'm4/sigaltstack.m4')
| -rw-r--r-- | m4/sigaltstack.m4 | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/m4/sigaltstack.m4 b/m4/sigaltstack.m4 index 03180fc..4c68c31 100644 --- a/m4/sigaltstack.m4 +++ b/m4/sigaltstack.m4 @@ -151,8 +151,12 @@ static void check_stack_location (volatile char *addr) } static void stackoverflow_handler (int sig) { +#if __GNUC__ >= 4 + check_stack_location (__builtin_frame_address(0)); +#else char dummy; check_stack_location (&dummy); +#endif } char mystack[2 * (1 << 24)]; int main () |