abortfixup.c revision 1.3 
1/* $NetBSD: abortfixup.c,v 1.3 2002/03/17 12:25:11 bjh21 Exp $ */
2
3/*-
4 * Copyright (c) 2001 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *      This product includes software developed by the NetBSD
18 *      Foundation, Inc. and its contributors.
19 * 4. Neither the name of The NetBSD Foundation nor the names of its
20 *    contributors may be used to endorse or promote products derived
21 *    from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
26 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33 * POSSIBILITY OF SUCH DAMAGE.
34 *
35 *
36 * Trying out if an unhandled instruction pattern in the late abort fixup
37 * generates a panic or sysfaults like it ought to do.
38 */
39
40#include <sys/types.h>
41
42__RCSID("$NetBSD: abortfixup.c,v 1.3 2002/03/17 12:25:11 bjh21 Exp $");
43
44#include <signal.h>
45#include <stdio.h>
46#include <stdlib.h>
47#include <stdio.h>
48
49void
50sighandler(int sig)
51{
52
53	/* Catching SIGSEGV means the test passed. */
54	exit(0);
55}
56
57int
58main(void)
59{
60
61	if (signal(SIGSEGV, sighandler) == SIG_ERR)
62		err(1, "signal");
63
64	printf("ARM 6/7 abort fixup panic regression test\n");
65	printf("    It should not panic!\n");
66
67	/*
68 	 * issue an instruction that for certain generates a page
69	 * fault but _can't_ be fixed up by late abort fixup
70	 * routines due to its structure.
71	 */
72
73	__asm __volatile ("
74		mvn r0, #0
75		mov r1, r0
76		str r1, [r0], r1, ror #10
77	");
78
79	/* Should not be reached if OK */
80	printf("!!! Regression test FAILED - no SEGV recieved\n");
81	return 1;
82};
83
84