66 lines
2.3 KiB
C
66 lines
2.3 KiB
C
/*-
|
|
* Copyright (c) 2000, 2002, 2006, 2007, 2009, 2013 The NetBSD Foundation, Inc.
|
|
* 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, 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``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 FOUNDATION OR CONTRIBUTORS
|
|
* 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: db_panic.c,v 1.3 2014/01/22 15:20:40 christos Exp $");
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/cpu.h>
|
|
|
|
#include <ddb/ddbvar.h>
|
|
#include <ddb/ddb.h>
|
|
|
|
/*
|
|
* db_panic: Called by panic(). May print a stack trace; may enter the
|
|
* kernel debugger; may just return so that panic() will continue to
|
|
* halt or reboot the system.
|
|
*/
|
|
void db_panic(void)
|
|
{
|
|
|
|
if (db_onpanic == 1)
|
|
Debugger();
|
|
else if (db_onpanic >= 0) {
|
|
static int intrace = 0;
|
|
|
|
if (intrace == 0) {
|
|
intrace = 1;
|
|
printf("cpu%u: Begin traceback...\n",
|
|
cpu_index(curcpu()));
|
|
db_stack_trace_print(
|
|
(db_expr_t)(intptr_t)__builtin_frame_address(0),
|
|
true, 65535, "", printf);
|
|
printf("cpu%u: End traceback...\n",
|
|
cpu_index(curcpu()));
|
|
intrace = 0;
|
|
} else
|
|
printf("Faulted in mid-traceback; aborting...\n");
|
|
if (db_onpanic == 2)
|
|
Debugger();
|
|
}
|
|
return;
|
|
}
|