From owner-svn-src-head@FreeBSD.ORG  Sun Oct 14 17:09:51 2012
Return-Path: <owner-svn-src-head@FreeBSD.ORG>
Delivered-To: svn-src-head@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
 by hub.freebsd.org (Postfix) with ESMTP id 1DCBA7A2;
 Sun, 14 Oct 2012 17:09:51 +0000 (UTC) (envelope-from kib@FreeBSD.org)
Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c])
 by mx1.freebsd.org (Postfix) with ESMTP id 06C1F8FC0C;
 Sun, 14 Oct 2012 17:09:51 +0000 (UTC)
Received: from svn.freebsd.org (localhost [127.0.0.1])
 by svn.freebsd.org (8.14.4/8.14.4) with ESMTP id q9EH9oGO006241;
 Sun, 14 Oct 2012 17:09:50 GMT (envelope-from kib@svn.freebsd.org)
Received: (from kib@localhost)
 by svn.freebsd.org (8.14.4/8.14.4/Submit) id q9EH9oWD006238;
 Sun, 14 Oct 2012 17:09:50 GMT (envelope-from kib@svn.freebsd.org)
Message-Id: <201210141709.q9EH9oWD006238@svn.freebsd.org>
From: Konstantin Belousov <kib@FreeBSD.org>
Date: Sun, 14 Oct 2012 17:09:50 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
 svn-src-head@freebsd.org
Subject: svn commit: r241550 - head/sys/i386/i386
X-SVN-Group: head
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-BeenThere: svn-src-head@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: SVN commit messages for the src tree for head/-current
 <svn-src-head.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/svn-src-head>,
 <mailto:svn-src-head-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-head>
List-Post: <mailto:svn-src-head@freebsd.org>
List-Help: <mailto:svn-src-head-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
 <mailto:svn-src-head-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 14 Oct 2012 17:09:51 -0000

Author: kib
Date: Sun Oct 14 17:09:50 2012
New Revision: 241550
URL: http://svn.freebsd.org/changeset/base/241550

Log:
  MFamd64: add machdep.uprintf_signal.
  
  MFC after:	1 week

Modified:
  head/sys/i386/i386/trap.c

Modified: head/sys/i386/i386/trap.c
==============================================================================
--- head/sys/i386/i386/trap.c	Sun Oct 14 17:08:46 2012	(r241549)
+++ head/sys/i386/i386/trap.c	Sun Oct 14 17:09:50 2012	(r241550)
@@ -195,6 +195,10 @@ TUNABLE_INT("machdep.panic_on_nmi", &pan
 static int prot_fault_translation = 0;
 SYSCTL_INT(_machdep, OID_AUTO, prot_fault_translation, CTLFLAG_RW,
 	&prot_fault_translation, 0, "Select signal to deliver on protection fault");
+static int uprintf_signal;
+SYSCTL_INT(_machdep, OID_AUTO, uprintf_signal, CTLFLAG_RW,
+    &uprintf_signal, 0,
+    "Print debugging information on trap signal to ctty");
 
 /*
  * Exception, fault, and trap interface to the FreeBSD kernel.
@@ -761,6 +765,21 @@ trap(struct trapframe *frame)
 	ksi.ksi_code = ucode;
 	ksi.ksi_addr = (void *)addr;
 	ksi.ksi_trapno = type;
+	if (uprintf_signal) {
+		uprintf("pid %d comm %s: signal %d err %x code %d type %d "
+		    "addr 0x%x eip 0x%08x "
+		    "<%02x %02x %02x %02x %02x %02x %02x %02x>\n",
+		    p->p_pid, p->p_comm, i, frame->tf_err, ucode, type, addr,
+		    frame->tf_eip,
+		    fubyte((void *)(frame->tf_eip + 0)),
+		    fubyte((void *)(frame->tf_eip + 1)),
+		    fubyte((void *)(frame->tf_eip + 2)),
+		    fubyte((void *)(frame->tf_eip + 3)),
+		    fubyte((void *)(frame->tf_eip + 4)),
+		    fubyte((void *)(frame->tf_eip + 5)),
+		    fubyte((void *)(frame->tf_eip + 6)),
+		    fubyte((void *)(frame->tf_eip + 7)));
+	}
 	trapsignal(td, &ksi);
 
 #ifdef DEBUG