diff options
| author | Mike Frysinger <vapier@gentoo.org> | 2009-11-23 21:35:34 -0500 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2009-11-23 21:35:34 -0500 |
| commit | 00673f93826bf1fbde728d202c319a684bb87150 (patch) | |
| tree | 2918312040781ebf7055ca83321605e7b110002d /libc/stdlib/malloc/malloc.c | |
| parent | c5bc75430dccfaef12220311aa4853176a8a911b (diff) | |
nommu: use MAP_UNINITIALIZE for mallocs
Now that the kernel supports MAP_UNINITIALIZE, have the malloc places use
it to get real uninitialized memory on no-mmu systems. This avoids a lot
of normally useless overhead involved in zeroing out all of the memory
(sometimes multiple times).
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'libc/stdlib/malloc/malloc.c')
| -rw-r--r-- | libc/stdlib/malloc/malloc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libc/stdlib/malloc/malloc.c b/libc/stdlib/malloc/malloc.c index f4bbc71a2..337206f09 100644 --- a/libc/stdlib/malloc/malloc.c +++ b/libc/stdlib/malloc/malloc.c @@ -124,7 +124,7 @@ __malloc_from_heap (size_t size, struct heap_free_area **heap MAP_PRIVATE | MAP_ANONYMOUS, 0, 0); #else block = mmap ((void *)0, block_size, PROT_READ | PROT_WRITE, - MAP_SHARED | MAP_ANONYMOUS, 0, 0); + MAP_SHARED | MAP_ANONYMOUS | MAP_UNINITIALIZE, 0, 0); #endif #endif /* MALLOC_USE_SBRK */ |