[PATCH] loader: Use a volatile pointer in wld_memset().
Charles Davis
cdavis5x at gmail.com
Thu Dec 20 14:50:17 CST 2012
This prevents Clang from optimizing the loop into a memset(3) call.
---
loader/preloader.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/loader/preloader.c b/loader/preloader.c
index a94c52c..b0d9197 100644
--- a/loader/preloader.c
+++ b/loader/preloader.c
@@ -451,7 +451,7 @@ static int wld_strncmp( const char *str1, const char *str2, size_t len )
static inline void *wld_memset( void *dest, int val, size_t len )
{
- char *dst = dest;
+ volatile char *dst = dest;
while (len--) *dst++ = val;
return dest;
}
--
1.7.12.4
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