xref: /freebsd/stand/libsa/panic.c (revision a0b9e2e854027e6ff61fb075a1309dbc71c42b54)
1 /*
2  * $NetBSD: panic.c,v 1.2 1997/03/22 01:48:36 thorpej Exp $
3  */
4 /*-
5  * Copyright (c) 1996
6  *	Matthias Drochner.  All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. All advertising materials mentioning features or use of this software
17  *    must display the following acknowledgement:
18  *	This product includes software developed for the NetBSD Project
19  *	by Matthias Drochner.
20  * 4. The name of the author may not be used to endorse or promote products
21  *    derived from this software without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
25  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
27  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
28  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
32  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33  *
34  */
35 
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD$");
38 
39 #include <stand.h>
40 #include <machine/stdarg.h>
41 
42 /*
43  * Boot loaders and other standalone programs that wish to have a
44  * different panic policy can provide their own panic_action rotuine.
45  */
46 __weak_symbol void
47 panic_action(void)
48 {
49 	printf("--> Press a key on the console to reboot <--\n");
50 	getchar();
51 	printf("Rebooting...\n");
52 	exit(1);
53 }
54 
55 void
56 panic(const char *fmt,...)
57 {
58 	va_list         ap;
59 
60 	printf("panic: ");
61 	va_start(ap, fmt);
62 	vprintf(fmt, ap);
63 	va_end(ap);
64 	printf("\n");
65 	panic_action();
66 }
67