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| author | Jakub Jelinek <jakub@redhat.com> | 2005-09-12 09:39:03 +0000 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2005-09-12 09:39:03 +0000 |
| commit | 2b0f7faea4d49b96dbd07ff86ef9abf69ea61929 (patch) | |
| tree | a37939d644b76fb707a81b0008198eccdc22c309 | |
| parent | 5e6e144e096c83beefb5bd50ea22da7266e72aee (diff) | |
| download | glibc-2b0f7faea4d49b96dbd07ff86ef9abf69ea61929.tar.gz glibc-2b0f7faea4d49b96dbd07ff86ef9abf69ea61929.tar.xz glibc-2b0f7faea4d49b96dbd07ff86ef9abf69ea61929.zip | |
* 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.
| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | malloc/malloc.c | 10 |
2 files changed, 13 insertions, 3 deletions
diff --git a/ChangeLog b/ChangeLog index 9d0d99ab99..fe2a06010b 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,9 @@ +2005-09-12 Jakub Jelinek <jakub@redhat.com> + + * 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. diff --git a/malloc/malloc.c b/malloc/malloc.c index 65be277097..64050b4266 100644 --- a/malloc/malloc.c +++ b/malloc/malloc.c @@ -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); |