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authorUlrich Drepper <drepper@redhat.com>2005-03-20 18:09:53 +0000
committerUlrich Drepper <drepper@redhat.com>2005-03-20 18:09:53 +0000
commit56137dbc2df4527d78e096999f08e10be9577ea3 (patch)
tree926c426322f168f2255a7ec9b4aeed5793ffb67e /malloc
parent65fb0d218921092f04d47db1c686951764da927b (diff)
downloadglibc-56137dbc2df4527d78e096999f08e10be9577ea3.tar.gz
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* malloc/malloc.c (public_cALLOc): We cannot skip the memory
	clearing if perturb_byte != 0.
Diffstat (limited to 'malloc')
-rw-r--r--malloc/malloc.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/malloc/malloc.c b/malloc/malloc.c
index 44831bbb1d..65be277097 100644
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -1,4 +1,4 @@
-  /* Malloc implementation for multiple threads without lock contention.
+/* Malloc implementation for multiple threads without lock contention.
    Copyright (C) 1996-2002, 2003, 2004, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Wolfram Gloger <wg@malloc.de>
@@ -3691,14 +3691,14 @@ public_cALLOc(size_t n, size_t elem_size)
 
   /* Two optional cases in which clearing not necessary */
 #if HAVE_MMAP
-  if (chunk_is_mmapped(p))
+  if (perturb_byte == 0 && chunk_is_mmapped(p))
     return mem;
 #endif
 
   csz = chunksize(p);
 
 #if MORECORE_CLEARS
-  if (p == oldtop && csz > oldtopsize) {
+  if (perturb_byte == 0 && (p == oldtop && csz > oldtopsize)) {
     /* clear only the bytes from non-freshly-sbrked memory */
     csz = oldtopsize;
   }