use volatile pointers for intentional-crash code.

[musl] / src / malloc / malloc.c

diff --git a/src/malloc/malloc.c b/src/malloc/malloc.c
index bc8382e..1a1a51f 100644 (file)
--- a/src/malloc/malloc.c
+++ b/src/malloc/malloc.c
@@ -395,7 +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);
@@ -458,7 +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;
        }