abortfixup.c revision 1.6 
1/* $NetBSD: abortfixup.c,v 1.6 2002/04/09 03:13:18 thorpej 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 1.6 2002/04/09 03:13:18 thorpej Exp $");
43
44#include <setjmp.h>
45#include <signal.h>
46#include <stdio.h>
47#include <stdlib.h>
48#include <stdio.h>
49
50jmp_buf buf;
51
52void
53sighandler(int sig)
54{
55
56	/* Catching SIGSEGV means the test passed. */
57	longjmp(buf, 1);
58}
59
60int
61main(void)
62{
63
64	if (signal(SIGSEGV, sighandler) == SIG_ERR)
65		err(1, "signal");
66
67	printf("ARM6/7 abort fixup panic\n");
68
69	/*
70 	 * issue an instruction that for certain generates a page
71	 * fault but _can't_ be fixed up by late abort fixup
72	 * routines due to its structure.
73	 */
74
75	if (setjmp(buf) == 0) {
76		__asm __volatile (
77		"	mov r0, #0			\n"
78		"	mov r1, r0			\n"
79		"	str r1, [r0], r1, ror #10");
80
81		/* Should not be reached if OK */
82		printf("!!! Regression test FAILED - no SEGV recieved\n");
83		exit(1);
84	}
85
86	printf("ARM2/3 abort address panic\n");
87
88	/* Similar but pre-indexed, to check ARM2/3 abort address function. */
89
90	if (setjmp(buf) == 0) {
91		__asm __volatile (
92		"	mov r0, #0			\n"
93		"	mov r1, r0			\n"
94		"	str r1, [r0, r1, ror #10]");
95
96		/* Should not be reached if OK */
97		printf("!!! Regression test FAILED - no SEGV recieved\n");
98		exit(1);
99	}
100
101	printf("All OK\n");
102
103	exit(0);
104};
105