1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright (c) 1999 by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <stdio.h> 30 #include <stdlib.h> 31 #include <string.h> 32 #include <signal.h> 33 #include <unistd.h> 34 35 #include <sys/time.h> 36 #include <sys/termio.h> 37 38 #include <fcode/private.h> 39 #include <fcode/log.h> 40 41 static fcode_env_t *saved_envp; 42 static struct termio saved_termio; 43 44 static void 45 process_signal(int sig, siginfo_t *sip, void *addr) 46 { 47 /* 48 * Format appropriate error message, want fault addr if Bus Error 49 * or Segmentation Violation. 50 */ 51 switch (sig) { 52 case SIGSEGV: 53 case SIGBUS: 54 case SIGILL: 55 case SIGFPE: 56 forth_abort(saved_envp, "%s: Fault Addr: 0x%08x", 57 strsignal(sig), sip->si_addr); 58 59 case SIGQUIT: 60 ioctl(fileno(stdin), TCSETA, &saved_termio); 61 log_message(MSG_FATAL, "SIGQUIT\n"); 62 abort(); 63 64 case SIGINT: 65 ioctl(fileno(stdin), TCSETA, &saved_termio); 66 break; 67 } 68 forth_abort(saved_envp, strsignal(sig)); 69 } 70 71 void 72 install_handlers(fcode_env_t *env) 73 { 74 struct sigaction sa; 75 76 saved_envp = env; 77 78 ioctl(fileno(stdin), TCGETA, &saved_termio); 79 80 sigemptyset(&sa.sa_mask); 81 sa.sa_flags = SA_SIGINFO|SA_NODEFER; 82 sa.sa_handler = 0; 83 sa.sa_sigaction = process_signal; 84 85 sigaction(SIGINT, &sa, NULL); 86 sigaction(SIGQUIT, &sa, NULL); 87 sigaction(SIGSEGV, &sa, NULL); 88 sigaction(SIGBUS, &sa, NULL); 89 sigaction(SIGUSR1, &sa, NULL); 90 sigaction(SIGFPE, &sa, NULL); 91 } 92