From owner-p4-projects@FreeBSD.ORG  Thu May 29 15:55:11 2003
Return-Path: <owner-p4-projects@FreeBSD.ORG>
Delivered-To: p4-projects@freebsd.org
Received: by hub.freebsd.org (Postfix, from userid 32767)
	id C983237B407; Thu, 29 May 2003 15:55:10 -0700 (PDT)
Delivered-To: perforce@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 5D14337B401
	for <perforce@freebsd.org>; Thu, 29 May 2003 15:55:10 -0700 (PDT)
Received: from repoman.freebsd.org (repoman.freebsd.org [216.136.204.115])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 8A37343FBD
	for <perforce@freebsd.org>; Thu, 29 May 2003 15:55:09 -0700 (PDT)
	(envelope-from peter@freebsd.org)
Received: from repoman.freebsd.org (localhost [127.0.0.1])
	by repoman.freebsd.org (8.12.6/8.12.6) with ESMTP id h4TMt90U069001
	for <perforce@freebsd.org>; Thu, 29 May 2003 15:55:09 -0700 (PDT)
	(envelope-from peter@freebsd.org)
Received: (from perforce@localhost)
	by repoman.freebsd.org (8.12.6/8.12.6/Submit) id h4TMt90v068998
	for perforce@freebsd.org; Thu, 29 May 2003 15:55:09 -0700 (PDT)
Date: Thu, 29 May 2003 15:55:09 -0700 (PDT)
Message-Id: <200305292255.h4TMt90v068998@repoman.freebsd.org>
X-Authentication-Warning: repoman.freebsd.org: perforce set sender to
	peter@freebsd.org using -f
From: Peter Wemm <peter@FreeBSD.org>
To: Perforce Change Reviews <perforce@freebsd.org>
Subject: PERFORCE change 32069 for review
X-BeenThere: p4-projects@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: p4 projects tree changes <p4-projects.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/p4-projects>,
	<mailto:p4-projects-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/p4-projects>
List-Post: <mailto:p4-projects@freebsd.org>
List-Help: <mailto:p4-projects-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/p4-projects>,
	<mailto:p4-projects-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 29 May 2003 22:55:11 -0000

http://perforce.freebsd.org/chv.cgi?CH=32069

Change 32069 by peter@peter_hammer on 2003/05/29 15:55:04

	add setjmp/longjmp for ddb's benefit.

Affected files ...

.. //depot/projects/hammer/sys/amd64/amd64/support.S#8 edit

Differences ...

==== //depot/projects/hammer/sys/amd64/amd64/support.S#8 (text+ko) ====

@@ -33,6 +33,8 @@
  * $FreeBSD: src/sys/amd64/amd64/support.S,v 1.100 2003/05/14 03:38:13 peter Exp $
  */
 
+#include "opt_ddb.h"
+
 #include <machine/asmacros.h>
 #include <machine/pmap.h>
 
@@ -624,3 +626,36 @@
 	pushq	$KCSEL
 	pushq	%rax
 	lretq
+
+#ifdef DDB
+/*****************************************************************************/
+/* setjump, longjump                                                         */
+/*****************************************************************************/
+
+ENTRY(setjmp)
+	movq	%rbx,0(%rdi)			/* save rbx */
+	movq	%rsp,8(%rdi)			/* save rsp */
+	movq	%rbp,16(%rdi)			/* save rbp */
+	movq	%r12,24(%rdi)			/* save r12 */
+	movq	%r13,32(%rdi)			/* save r13 */
+	movq	%r14,40(%rdi)			/* save r14 */
+	movq	%r15,48(%rdi)			/* save r15 */
+	movq	0(%rsp),%rdx			/* get rta */
+	movq	%rdx,56(%rdi)			/* save rip */
+	xorl	%eax,%eax			/* return(0); */
+	ret
+
+ENTRY(longjmp)
+	movq	0(%rdi),%rbx			/* restore rbx */
+	movq	8(%rdi),%rsp			/* restore rsp */
+	movq	16(%rdi),%rbp			/* restore rbp */
+	movq	24(%rdi),%r12			/* restore r12 */
+	movq	32(%rdi),%r13			/* restore r13 */
+	movq	40(%rdi),%r14			/* restore r14 */
+	movq	48(%rdi),%r15			/* restore r15 */
+	movq	56(%rdi),%rdx			/* get rta */
+	movq	%rdx,0(%rsp)			/* put in return frame */
+	xorl	%eax,%eax			/* return(1); */
+	incl	%eax
+	ret
+#endif