1 /* $NetBSD: abortfixup.c,v 1.8 2008/04/28 20:23:05 martin 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 1.8 2008/04/28 20:23:05 martin Exp $"); 36 37 #include <setjmp.h> 38 #include <signal.h> 39 #include <stdio.h> 40 #include <stdlib.h> 41 #include <stdio.h> 42 43 jmp_buf buf; 44 45 void 46 sighandler(int sig) 47 { 48 49 /* Catching SIGSEGV means the test passed. */ 50 longjmp(buf, 1); 51 } 52 53 int 54 main(void) 55 { 56 57 if (signal(SIGSEGV, sighandler) == SIG_ERR) 58 err(1, "signal"); 59 60 printf("ARM6/7 abort fixup panic\n"); 61 62 /* 63 * issue an instruction that for certain generates a page 64 * fault but _can't_ be fixed up by late abort fixup 65 * routines due to its structure. 66 */ 67 68 if (setjmp(buf) == 0) { 69 __asm volatile ( 70 " mov r0, #0 \n" 71 " mov r1, r0 \n" 72 " str r1, [r0], r1, ror #10"); 73 74 /* Should not be reached if OK */ 75 printf("!!! Regression test FAILED - no SEGV recieved\n"); 76 exit(1); 77 } 78 79 printf("ARM2/3 abort address panic\n"); 80 81 /* Similar but pre-indexed, to check ARM2/3 abort address function. */ 82 83 if (setjmp(buf) == 0) { 84 __asm volatile ( 85 " mov r0, #0 \n" 86 " mov r1, r0 \n" 87 " str r1, [r0, r1, ror #10]"); 88 89 /* Should not be reached if OK */ 90 printf("!!! Regression test FAILED - no SEGV recieved\n"); 91 exit(1); 92 } 93 94 printf("All OK\n"); 95 96 exit(0); 97 }; 98