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* malloc/mcheck.c (reallochook): If size==0, free the block.

This commit is contained in:
Ulrich Drepper 2007-05-19 04:26:03 +00:00
parent eb4b098a99
commit 129abdd3ee
2 changed files with 9 additions and 1 deletions
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2
ChangeLog
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@ -1,5 +1,7 @@
2007-05-18 Ulrich Drepper <drepper@redhat.com>
* malloc/mcheck.c (reallochook): If size==0, free the block.
* rt/tst-shm.c: Use fstat64 instead of fstat.
* sysdeps/unix/sysv/linux/i386/sync_file_range.S: Fix case where

8
malloc/mcheck.c
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@ -1,5 +1,5 @@
/* Standard debugging hooks for `malloc'.
Copyright (C) 1990-1997,99,2000,01,02 Free Software Foundation, Inc.
Copyright (C) 1990-1997,1999,2000-2002,2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Written May 1989 by Mike Haertel.
@ -264,6 +264,12 @@ memalignhook (__malloc_size_t alignment, __malloc_size_t size,
static __ptr_t
reallochook (__ptr_t ptr, __malloc_size_t size, const __ptr_t caller)
{
if (size == 0)
{
freehook (ptr, caller);
return;
}
struct hdr *hdr;
__malloc_size_t osize;