X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fmalloc%2Fmalloc.c;h=1a1a51f4150187d691ef1aca19f95e496377b73b;hb=ede353d8e5c9198cf467aad95e49a496020898ed;hp=46cc21fb7b54ed95310c51e7ac0ee6a285ff5532;hpb=b761bd19aa1ae0f95dd2146397b7f39b44a471b6;p=musl

diff --git a/src/malloc/malloc.c b/src/malloc/malloc.c
index 46cc21fb..1a1a51f4 100644
--- a/src/malloc/malloc.c
+++ b/src/malloc/malloc.c
@@ -1,3 +1,4 @@
+#define _GNU_SOURCE
 #include <stdlib.h>
 #include <string.h>
 #include <limits.h>
@@ -394,7 +395,7 @@ void *realloc(void *p, size_t n)
 		size_t oldlen = n0 + extra;
 		size_t newlen = n + extra;
 		/* Crash on realloc of freed chunk */
-		if ((uintptr_t)base < mal.brk) *(char *)0=0;
+		if ((uintptr_t)base < mal.brk) *(volatile char *)0=0;
 		if (newlen < PAGE_SIZE && (new = malloc(n))) {
 			memcpy(new, p, n-OVERHEAD);
 			free(p);
@@ -457,7 +458,7 @@ void free(void *p)
 		char *base = (char *)self - extra;
 		size_t len = CHUNK_SIZE(self) + extra;
 		/* Crash on double free */
-		if ((uintptr_t)base < mal.brk) *(char *)0=0;
+		if ((uintptr_t)base < mal.brk) *(volatile char *)0=0;
 		__munmap(base, len);
 		return;
 	}