diff options
| -rw-r--r-- | ChangeLog | 7 | ||||
| -rw-r--r-- | malloc/hooks.c | 26 | ||||
| -rw-r--r-- | malloc/malloc.c | 2 |
3 files changed, 20 insertions, 15 deletions
@@ -1,3 +1,10 @@ +2017-08-31 Florian Weimer <fweimer@redhat.com> + + * malloc/malloc.c (top_check): Change return type to void. Remove + internal_function. + * malloc/hooks.c (top_check): Likewise. + (malloc_check, realloc_check, memalign_check): Adjust. + 2017-08-30 Joseph Myers <joseph@codesourcery.com> [BZ #21457] diff --git a/malloc/hooks.c b/malloc/hooks.c index dcd311e7c7..4398c0a017 100644 --- a/malloc/hooks.c +++ b/malloc/hooks.c @@ -228,8 +228,7 @@ mem2chunk_check (void *mem, unsigned char **magic_p) } /* Check for corruption of the top chunk. */ -static int -internal_function +static void top_check (void) { mchunkptr t = top (&main_arena); @@ -240,7 +239,7 @@ top_check (void) prev_inuse (t) && (!contiguous (&main_arena) || (char *) t + chunksize (t) == mp_.sbrk_base + main_arena.system_mem))) - return 0; + return; malloc_printerr ("malloc: top chunk is corrupt"); } @@ -257,7 +256,8 @@ malloc_check (size_t sz, const void *caller) } __libc_lock_lock (main_arena.mutex); - victim = (top_check () >= 0) ? _int_malloc (&main_arena, sz + 1) : NULL; + top_check (); + victim = _int_malloc (&main_arena, sz + 1); __libc_lock_unlock (main_arena.mutex); return mem2mem_check (victim, sz); } @@ -329,8 +329,8 @@ realloc_check (void *oldmem, size_t bytes, const void *caller) else { /* Must alloc, copy, free. */ - if (top_check () >= 0) - newmem = _int_malloc (&main_arena, bytes + 1); + top_check (); + newmem = _int_malloc (&main_arena, bytes + 1); if (newmem) { memcpy (newmem, oldmem, oldsize - 2 * SIZE_SZ); @@ -341,12 +341,10 @@ realloc_check (void *oldmem, size_t bytes, const void *caller) } else { - if (top_check () >= 0) - { - INTERNAL_SIZE_T nb; - checked_request2size (bytes + 1, nb); - newmem = _int_realloc (&main_arena, oldp, oldsize, nb); - } + top_check (); + INTERNAL_SIZE_T nb; + checked_request2size (bytes + 1, nb); + newmem = _int_realloc (&main_arena, oldp, oldsize, nb); } /* mem2chunk_check changed the magic byte in the old chunk. @@ -396,8 +394,8 @@ memalign_check (size_t alignment, size_t bytes, const void *caller) } __libc_lock_lock (main_arena.mutex); - mem = (top_check () >= 0) ? _int_memalign (&main_arena, alignment, bytes + 1) : - NULL; + top_check (); + mem = _int_memalign (&main_arena, alignment, bytes + 1); __libc_lock_unlock (main_arena.mutex); return mem2mem_check (mem, bytes); } diff --git a/malloc/malloc.c b/malloc/malloc.c index 65bbf02cb7..768670ccf6 100644 --- a/malloc/malloc.c +++ b/malloc/malloc.c @@ -1022,7 +1022,7 @@ static void* _mid_memalign(size_t, size_t, void *); static void malloc_printerr(const char *str) __attribute__ ((noreturn)); static void* internal_function mem2mem_check(void *p, size_t sz); -static int internal_function top_check(void); +static void top_check (void); static void internal_function munmap_chunk(mchunkptr p); #if HAVE_MREMAP static mchunkptr internal_function mremap_chunk(mchunkptr p, size_t new_size); |