projects / OpenSPARC-T2-SAM / blame
| Commit | Line | Data |
|---|---|---|
| 920dae64 AT |
1 | /* |
| 2 | * ========== Copyright Header Begin ========================================== | |
| 3 | * | |
| 4 | * OpenSPARC T2 Processor File: signals.c | |
| 5 | * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. | |
| 6 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES. | |
| 7 | * | |
| 8 | * The above named program is free software; you can redistribute it and/or | |
| 9 | * modify it under the terms of the GNU General Public | |
| 10 | * License version 2 as published by the Free Software Foundation. | |
| 11 | * | |
| 12 | * The above named program is distributed in the hope that it will be | |
| 13 | * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 | * General Public License for more details. | |
| 16 | * | |
| 17 | * You should have received a copy of the GNU General Public | |
| 18 | * License along with this work; if not, write to the Free Software | |
| 19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. | |
| 20 | * | |
| 21 | * ========== Copyright Header End ============================================ | |
| 22 | */ | |
| 23 | /* | |
| 24 | * Copyright 2006 Sun Microsystems, Inc. All rights reserved. | |
| 25 | * Use is subject to license terms. | |
| 26 | */ | |
| 27 | #pragma ident "@(#)signals.c 1.6 06/08/31 SMI" | |
| 28 | ||
| 29 | /* | |
| 30 | * Signal handling code | |
| 31 | */ | |
| 32 | ||
| 33 | #include <stdio.h> | |
| 34 | #include <stdlib.h> | |
| 35 | #include <unistd.h> | |
| 36 | #include <errno.h> | |
| 37 | #include <sys/time.h> | |
| 38 | #include <sys/types.h> | |
| 39 | #include <signal.h> | |
| 40 | #include <stropts.h> | |
| 41 | #include <poll.h> | |
| 42 | ||
| 43 | #include "basics.h" | |
| 44 | ||
| 45 | /* | |
| 46 | * Definitions | |
| 47 | */ | |
| 48 | ||
| 49 | static void exit_handler(int); | |
| 50 | static void hup_handler(int); | |
| 51 | static void poll_handler(int); | |
| 52 | ||
| 53 | /* | |
| 54 | * Default signal settings for the main LWP | |
| 55 | */ | |
| 56 | ||
| 57 | void | |
| 58 | init_signals() | |
| 59 | { | |
| 60 | /* | |
| 61 | * typically these two delivered as a result of terminal | |
| 62 | * attach/detach | |
| 63 | */ | |
| 64 | signal(SIGPOLL, poll_handler); | |
| 65 | signal(SIGHUP, hup_handler); | |
| 66 | /* standard signals */ | |
| 67 | signal(SIGINT, exit_handler); | |
| 68 | signal(SIGILL, exit_handler); | |
| 69 | signal(SIGIOT, exit_handler); | |
| 70 | signal(SIGFPE, exit_handler); | |
| 71 | #if !defined(HOST_OS_LINUX) | |
| 72 | signal(SIGEMT, exit_handler); | |
| 73 | #endif | |
| 74 | signal(SIGBUS, exit_handler); | |
| 75 | signal(SIGSEGV, exit_handler); | |
| 76 | signal(SIGSYS, exit_handler); | |
| 77 | } | |
| 78 | ||
| 79 | ||
| 80 | static void | |
| 81 | exit_handler(int sig) | |
| 82 | { | |
| 83 | char *strp; | |
| 84 | ||
| 85 | switch (sig) { | |
| 86 | case SIGINT: | |
| 87 | strp = "Interrupted"; | |
| 88 | break; | |
| 89 | case SIGILL: | |
| 90 | strp = "Illegal Instruction"; | |
| 91 | break; | |
| 92 | case SIGTRAP: | |
| 93 | strp = "Trace Trap"; | |
| 94 | break; | |
| 95 | case SIGSEGV: | |
| 96 | strp = "Segmentation violation"; | |
| 97 | break; | |
| 98 | case SIGBUS: | |
| 99 | strp = "Bus Error"; | |
| 100 | break; | |
| 101 | case SIGIOT: | |
| 102 | strp = "IOT Trap"; | |
| 103 | break; | |
| 104 | #if !defined(HOST_OS_LINUX) | |
| 105 | case SIGEMT: | |
| 106 | strp = "EMT Trap"; | |
| 107 | break; | |
| 108 | #endif | |
| 109 | case SIGFPE: | |
| 110 | strp = "Numeric Exception (Divide by Zero?)"; | |
| 111 | break; | |
| 112 | case SIGSYS: | |
| 113 | strp = "Bad System Call Argument"; | |
| 114 | break; | |
| 115 | default: | |
| 116 | strp = NULL; | |
| 117 | break; | |
| 118 | } | |
| 119 | ||
| 120 | fflush(stdout); | |
| 121 | ||
| 122 | if (strp != NULL) | |
| 123 | fprintf(stderr, "SIGNAL: %s\n", strp); | |
| 124 | else | |
| 125 | fprintf(stderr, "SIGNAL: Unknown signal %d\n", sig); | |
| 126 | ||
| 127 | fflush(stderr); | |
| 128 | ||
| 129 | exit(1); | |
| 130 | } | |
| 131 | ||
| 132 | ||
| 133 | static void | |
| 134 | hup_handler(int sig) | |
| 135 | { | |
| 136 | fprintf(stderr, "Hup !\n"); | |
| 137 | } | |
| 138 | ||
| 139 | ||
| 140 | static void | |
| 141 | poll_handler(int sig) | |
| 142 | { | |
| 143 | fprintf(stderr, "Poll !\n"); | |
| 144 | } |