1 /* $NetBSD: abortfixup.c,v 1.10 2011/10/17 16:39:15 mbalmer 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 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 *
28 *
29 * Trying out if an unhandled instruction pattern in the late abort fixup
30 * generates a panic or sysfaults like it ought to do.
31 */
32
33 #include <sys/types.h>
34
35 __RCSID("$NetBSD: abortfixup.c,v 1.10 2011/10/17 16:39:15 mbalmer Exp $");
36
37 #include <setjmp.h>
38 #include <signal.h>
39 #include <stdio.h>
40 #include <stdlib.h>
41 #include <stdio.h>
42 #include <err.h>
43
44 jmp_buf buf;
45
46 void
sighandler(int sig)47 sighandler(int sig)
48 {
49
50 /* Catching SIGSEGV means the test passed. */
51 longjmp(buf, 1);
52 }
53
54 int
main(void)55 main(void)
56 {
57
58 if (signal(SIGSEGV, sighandler) == SIG_ERR)
59 err(1, "signal");
60
61 printf("ARM6/7 abort fixup panic\n");
62
63 /*
64 * issue an instruction that for certain generates a page
65 * fault but _can't_ be fixed up by late abort fixup
66 * routines due to its structure.
67 */
68
69 if (setjmp(buf) == 0) {
70 __asm volatile (
71 " mov r0, #0 \n"
72 " mov r1, r0 \n"
73 " str r1, [r0], r1, ror #10");
74
75 /* Should not be reached if OK */
76 printf("!!! Regression test FAILED - no SEGV received\n");
77 exit(1);
78 }
79
80 printf("ARM2/3 abort address panic\n");
81
82 /* Similar but pre-indexed, to check ARM2/3 abort address function. */
83
84 if (setjmp(buf) == 0) {
85 __asm volatile (
86 " mov r0, #0 \n"
87 " mov r1, r0 \n"
88 " str r1, [r0, r1, ror #10]");
89
90 /* Should not be reached if OK */
91 printf("!!! Regression test FAILED - no SEGV received\n");
92 exit(1);
93 }
94
95 printf("All OK\n");
96
97 exit(0);
98 };
99