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-standard/malloc.h | |
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-standard/malloc.h')
-rw-r--r-- | libc/stdlib/malloc-standard/malloc.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libc/stdlib/malloc-standard/malloc.h b/libc/stdlib/malloc-standard/malloc.h index 90c9fd14d..7a2e66d16 100644 --- a/libc/stdlib/malloc-standard/malloc.h +++ b/libc/stdlib/malloc-standard/malloc.h @@ -356,7 +356,7 @@ __UCLIBC_MUTEX_EXTERN(__malloc_lock); #else #define MMAP(addr, size, prot) \ - (mmap((addr), (size), (prot), MAP_SHARED|MAP_ANONYMOUS, 0, 0)) + (mmap((addr), (size), (prot), MAP_SHARED|MAP_ANONYMOUS|MAP_UNINITIALIZE, 0, 0)) #endif |