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* malloc/malloc.c (struct malloc_chunk): Fix comment typo. 

(public_cALLOc): For mmapped chunks and perturb_byte != 0,
	don't clear SIZE_SZ bytes more than should be cleared.
This commit is contained in:
Ulrich Drepper 2005-09-12 14:02:35 +00:00
parent ff3cacc50c
commit 9ea9af192b
2 changed files with 13 additions and 3 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2005-09-12 Jakub Jelinek <jakub@redhat.com>
* malloc/malloc.c (struct malloc_chunk): Fix comment typo.
(public_cALLOc): For mmapped chunks and perturb_byte != 0,
don't clear SIZE_SZ bytes more than should be cleared.
2005-09-09 Jakub Jelinek <jakub@redhat.com>
* inet/getnetgrent_r.c: Include assert.

10
malloc/malloc.c
View File

@ -1726,7 +1726,7 @@ struct malloc_chunk {
mem-> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| User data starts here... .
. .
. (malloc_usable_space() bytes) .
. (malloc_usable_size() bytes) .
. |
nextchunk-> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Size of chunk |
@ -3691,8 +3691,12 @@ public_cALLOc(size_t n, size_t elem_size)
/* Two optional cases in which clearing not necessary */
#if HAVE_MMAP
if (perturb_byte == 0 && chunk_is_mmapped(p))
return mem;
if (chunk_is_mmapped (p))
{
if (__builtin_expect (perturb_byte, 0))
MALLOC_ZERO (mem, sz);
return mem;
}
#endif
csz = chunksize(p);