From: Andrew Pinski <apin...@marvell.com>
The problem is the buffer is too small to hold "-O" and
the interger. This fixes the problem by use the correct size
instead.
Changes since v1:
* v2: Use HOST_BITS_PER_LONG and just divide by 3 instead of
3.32.
OK? Bootstrapped and tested on x86_64-linux with no regressions.
gcc/c-family/ChangeLog:
PR c/101453
* c-common.c (parse_optimize_options): Use the correct
size for buffer.
---
gcc/c-family/c-common.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/gcc/c-family/c-common.c b/gcc/c-family/c-common.c
index 20ec263..e7a54a5 100644
--- a/gcc/c-family/c-common.c
+++ b/gcc/c-family/c-common.c
@@ -5799,7 +5799,7 @@ parse_optimize_options (tree args, bool attr_p)
if (TREE_CODE (value) == INTEGER_CST)
{
- char buffer[20];
+ char buffer[HOST_BITS_PER_LONG / 3 + 4];
sprintf (buffer, "-O%ld", (long) TREE_INT_CST_LOW (value));
vec_safe_push (optimize_args, ggc_strdup (buffer));
}
--
1.8.3.1
