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authorRoland McGrath <roland@gnu.org>2006-03-06 06:18:43 +0000
committerRoland McGrath <roland@gnu.org>2006-03-06 06:18:43 +0000
commit7d013a64de1cada889f3db5da793a7b965e87ac1 (patch)
treed8e1a24f918b7053581e67ec29a0a19fdb87c059 /malloc/malloc.c
parent182ed12e71051879279121779ff068825bcd55b5 (diff)
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* malloc/malloc.c (MALLOC_ALIGNMENT): Revert to (2 * SIZE_SZ) value. cvs/fedora-glibc-20060306T0720
	The correct value differs only on powerpc32, and for now changing it
	there is causing more trouble than it's worth.

	* malloc/arena.c: Add compile-time sanity check on padding calculation.

2006-03-05  Jakub Jelinek  <jakub@redhat.com>

	* malloc/arena.c (heap_info): Adjust the padding size if
	MALLOC_ALIGNMENT > 2 * SIZE_SZ.
Diffstat (limited to 'malloc/malloc.c')
-rw-r--r--malloc/malloc.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/malloc/malloc.c b/malloc/malloc.c
index 99b55c8639..5fbd268fed 100644
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -1,5 +1,5 @@
 /* Malloc implementation for multiple threads without lock contention.
-   Copyright (C) 1996-2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+   Copyright (C) 1996-2002,2003,2004,2005,2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Wolfram Gloger <wg@malloc.de>
    and Doug Lea <dl@cs.oswego.edu>, 2001.
@@ -381,8 +381,15 @@ extern "C" {
 
 
 #ifndef MALLOC_ALIGNMENT
+/* XXX This is the correct definition.  It differs from 2*SIZE_SZ only on
+   powerpc32.  For the time being, changing this is causing more
+   compatibility problems due to malloc_get_state/malloc_set_state than
+   will returning blocks not adequately aligned for long double objects
+   under -mlong-double-128.  */
 #define MALLOC_ALIGNMENT       (2 * SIZE_SZ < __alignof__ (long double) \
 				? __alignof__ (long double) : 2 * SIZE_SZ)
+*/
+#define MALLOC_ALIGNMENT       (2 * SIZE_SZ)
 #endif
 
 /* The corresponding bit mask value */