From owner-p4-projects@FreeBSD.ORG  Mon Jul  5 22:05:39 2004
Return-Path: <owner-p4-projects@FreeBSD.ORG>
Delivered-To: p4-projects@freebsd.org
Received: by hub.freebsd.org (Postfix, from userid 32767)
	id 0007E16A4D0; Mon,  5 Jul 2004 22:05:38 +0000 (GMT)
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 CF01E16A4CE
	for <perforce@freebsd.org>; Mon,  5 Jul 2004 22:05:38 +0000 (GMT)
Received: from repoman.freebsd.org (repoman.freebsd.org [216.136.204.115])
	by mx1.FreeBSD.org (Postfix) with ESMTP id CE6B543D58
	for <perforce@freebsd.org>; Mon,  5 Jul 2004 22:05:38 +0000 (GMT)
	(envelope-from marcel@freebsd.org)
Received: from repoman.freebsd.org (localhost [127.0.0.1])
	by repoman.freebsd.org (8.12.11/8.12.11) with ESMTP id i65M5cJu092335
	for <perforce@freebsd.org>; Mon, 5 Jul 2004 22:05:38 GMT
	(envelope-from marcel@freebsd.org)
Received: (from perforce@localhost)
	by repoman.freebsd.org (8.12.11/8.12.11/Submit) id i65M5cPl092332
	for perforce@freebsd.org; Mon, 5 Jul 2004 22:05:38 GMT
	(envelope-from marcel@freebsd.org)
Date: Mon, 5 Jul 2004 22:05:38 GMT
Message-Id: <200407052205.i65M5cPl092332@repoman.freebsd.org>
X-Authentication-Warning: repoman.freebsd.org: perforce set sender to
	marcel@freebsd.org using -f
From: Marcel Moolenaar <marcel@FreeBSD.org>
To: Perforce Change Reviews <perforce@freebsd.org>
Subject: PERFORCE change 56546 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: Mon, 05 Jul 2004 22:05:39 -0000

http://perforce.freebsd.org/chv.cgi?CH=56546

Change 56546 by marcel@marcel_nfs on 2004/07/05 22:05:37

	Implement makectx() on alpha. Tested and working.

Affected files ...

.. //depot/projects/gdb/sys/alpha/alpha/machdep.c#11 edit

Differences ...

==== //depot/projects/gdb/sys/alpha/alpha/machdep.c#11 (text+ko) ====

@@ -1974,6 +1974,29 @@
 #endif
 }
 
+/*
+ * Construct a PCB from a trapframe. This is called from kdb_trap() where
+ * we want to start a backtrace from the function that caused us to enter
+ * the debugger. We have the context in the trapframe, but base the trace
+ * on the PCB. The PCB doesn't have to be perfect, as long as it contains
+ * enough for a backtrace.
+ */
+void
+makectx(struct trapframe *tf, struct pcb *pcb)
+{
+
+	pcb->pcb_context[0] = tf->tf_regs[FRAME_S0];
+	pcb->pcb_context[1] = tf->tf_regs[FRAME_S1];
+	pcb->pcb_context[2] = tf->tf_regs[FRAME_S2];
+	pcb->pcb_context[3] = tf->tf_regs[FRAME_S3];
+	pcb->pcb_context[4] = tf->tf_regs[FRAME_S4];
+	pcb->pcb_context[5] = tf->tf_regs[FRAME_S5];
+	pcb->pcb_context[6] = tf->tf_regs[FRAME_S6];
+	pcb->pcb_context[7] = tf->tf_regs[FRAME_PC];
+	pcb->pcb_context[8] = tf->tf_regs[FRAME_PS];
+	pcb->pcb_hw.apcb_ksp = tf->tf_regs[FRAME_SP];
+}
+
 int
 fill_regs(td, regs)
 	struct thread *td;