From owner-svn-src-stable-6@FreeBSD.ORG  Mon Feb  8 18:37:11 2010
Return-Path: <owner-svn-src-stable-6@FreeBSD.ORG>
Delivered-To: svn-src-stable-6@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 47D66106566B;
	Mon,  8 Feb 2010 18:37:11 +0000 (UTC)
	(envelope-from emaste@FreeBSD.org)
Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c])
	by mx1.freebsd.org (Postfix) with ESMTP id 36EB58FC18;
	Mon,  8 Feb 2010 18:37:11 +0000 (UTC)
Received: from svn.freebsd.org (localhost [127.0.0.1])
	by svn.freebsd.org (8.14.3/8.14.3) with ESMTP id o18IbAoQ023990;
	Mon, 8 Feb 2010 18:37:10 GMT (envelope-from emaste@svn.freebsd.org)
Received: (from emaste@localhost)
	by svn.freebsd.org (8.14.3/8.14.3/Submit) id o18IbAY1023988;
	Mon, 8 Feb 2010 18:37:10 GMT (envelope-from emaste@svn.freebsd.org)
Message-Id: <201002081837.o18IbAY1023988@svn.freebsd.org>
From: Ed Maste <emaste@FreeBSD.org>
Date: Mon, 8 Feb 2010 18:37:10 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
	svn-src-stable@freebsd.org, svn-src-stable-6@freebsd.org
X-SVN-Group: stable-6
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Cc: 
Subject: svn commit: r203674 - stable/6/sys/sys
X-BeenThere: svn-src-stable-6@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: SVN commit messages for only the 6-stable src tree
	<svn-src-stable-6.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-stable-6>, 
	<mailto:svn-src-stable-6-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-stable-6>
List-Post: <mailto:svn-src-stable-6@freebsd.org>
List-Help: <mailto:svn-src-stable-6-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-stable-6>, 
	<mailto:svn-src-stable-6-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 08 Feb 2010 18:37:11 -0000

Author: emaste
Date: Mon Feb  8 18:37:10 2010
New Revision: 203674
URL: http://svn.freebsd.org/changeset/base/203674

Log:
  MFC r162488:
  
    Use __builtin_offsetof for GCC 4.1.
  
  Submitted by: Ryan Stone

Modified:
  stable/6/sys/sys/cdefs.h
Directory Properties:
  stable/6/sys/   (props changed)
  stable/6/sys/contrib/pf/   (props changed)
  stable/6/sys/dev/cxgb/   (props changed)

Modified: stable/6/sys/sys/cdefs.h
==============================================================================
--- stable/6/sys/sys/cdefs.h	Mon Feb  8 18:16:59 2010	(r203673)
+++ stable/6/sys/sys/cdefs.h	Mon Feb  8 18:37:10 2010	(r203674)
@@ -304,6 +304,9 @@
  * We define this here since <stddef.h>, <sys/queue.h>, and <sys/types.h>
  * require it.
  */
+#if __GNUC_PREREQ__(4, 1)
+#define __offsetof(type, field)	 __builtin_offsetof(type, field)
+#else
 #ifndef __cplusplus
 #define	__offsetof(type, field)	((size_t)(&((type *)0)->field))
 #else
@@ -312,6 +315,7 @@
                  (&reinterpret_cast <const volatile char &>	\
                   (static_cast<type *> (0)->field))))
 #endif
+#endif
 #define	__rangeof(type, start, end) \
 	(__offsetof(type, end) - __offsetof(type, start))