diff options
Diffstat (limited to 'malloc/hooks.c')
| -rw-r--r-- | malloc/hooks.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/malloc/hooks.c b/malloc/hooks.c index d8e304c..9474e19 100644 --- a/malloc/hooks.c +++ b/malloc/hooks.c @@ -262,11 +262,10 @@ free_check (void *mem, const void *caller) int err = errno; -#ifdef USE_MTAG /* Quickly check that the freed pointer matches the tag for the memory. This gives a useful double-free detection. */ - *(volatile char *)mem; -#endif + if (__glibc_unlikely (mtag_enabled)) + *(volatile char *)mem; __libc_lock_lock (main_arena.mutex); p = mem2chunk_check (mem, NULL); @@ -310,11 +309,10 @@ realloc_check (void *oldmem, size_t bytes, const void *caller) return NULL; } -#ifdef USE_MTAG /* Quickly check that the freed pointer matches the tag for the memory. This gives a useful double-free detection. */ - *(volatile char *)oldmem; -#endif + if (__glibc_unlikely (mtag_enabled)) + *(volatile char *)oldmem; __libc_lock_lock (main_arena.mutex); const mchunkptr oldp = mem2chunk_check (oldmem, &magic_p); |