/*
 * Copyright (c) 2003 Hiten Pandya <hmp@backplane.com>.
 *
 * All rights reserved.
 * 
 * Copyright (c) 1986, 1988, 1991, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice unmodified, this list of conditions, and the following
 *    disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
*
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR OR THE VOICES IN HIS HEAD BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Adopted from:
 *	src/sys/kern/kern_shutdown.c
 *
 * $DragonFly: src/sys/kern/kern_debug.c,v 1.4 2004/02/14 03:54:36 hmp Exp $
 *
 */

/*
 * Various debug routines.
 *
 */

#include "opt_ddb.h"

#include <sys/param.h>
#include <sys/systm.h>

#include <ddb/ddb.h>

/*
 * Simple DDB stack trace funtionality.
 */
void
backtrace(void)
{

#ifdef DDB
		printf("Stack backtrace:\n");
		db_print_backtrace();
#else
		printf("Cannot print stack trace.\n");
		printf("DDB kernel option is needed.\n");
#endif
}