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| Rev | Author | Line No. | Line |
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| 38 | pj | 1 | /* |
| 2 | * Project: S.Ha.R.K. |
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| 3 | * |
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| 4 | * Coordinators: |
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| 5 | * Giorgio Buttazzo <giorgio@sssup.it> |
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| 6 | * Paolo Gai <pj@gandalf.sssup.it> |
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| 7 | * |
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| 8 | * Authors : |
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| 9 | * Paolo Gai <pj@gandalf.sssup.it> |
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| 10 | * (see the web pages for full authors list) |
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| 11 | * |
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| 12 | * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy) |
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| 13 | * |
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| 14 | * http://www.sssup.it |
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| 15 | * http://retis.sssup.it |
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| 16 | * http://shark.sssup.it |
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| 17 | */ |
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| 18 | |||
| 19 | /** |
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| 20 | ------------ |
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| 503 | giacomo | 21 | CVS : $Id: exchand.c,v 1.4 2004-03-10 16:42:51 giacomo Exp $ |
| 38 | pj | 22 | |
| 23 | File: $File$ |
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| 503 | giacomo | 24 | Revision: $Revision: 1.4 $ |
| 25 | Last update: $Date: 2004-03-10 16:42:51 $ |
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| 38 | pj | 26 | ------------ |
| 27 | **/ |
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| 28 | |||
| 29 | /* |
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| 157 | pj | 30 | * Copyright (C) 2000-2003 Paolo Gai |
| 38 | pj | 31 | * |
| 32 | * This program is free software; you can redistribute it and/or modify |
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| 33 | * it under the terms of the GNU General Public License as published by |
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| 34 | * the Free Software Foundation; either version 2 of the License, or |
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| 35 | * (at your option) any later version. |
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| 36 | * |
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| 37 | * This program is distributed in the hope that it will be useful, |
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| 38 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 39 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 40 | * GNU General Public License for more details. |
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| 41 | * |
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| 42 | * You should have received a copy of the GNU General Public License |
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| 43 | * along with this program; if not, write to the Free Software |
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| 44 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 45 | * |
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| 46 | */ |
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| 47 | |||
| 48 | #include <kernel/kern.h> |
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| 445 | giacomo | 49 | #include <stdlib.h> |
| 50 | #include <tracer.h> |
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| 38 | pj | 51 | |
| 52 | static int myflag; |
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| 53 | static siginfo_t myinfo; |
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| 54 | static struct timespec mytime; |
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| 55 | |||
| 56 | static void thehandler(int signo, siginfo_t *info, void *extra); |
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| 57 | static void theend(void *arg); |
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| 58 | |||
| 157 | pj | 59 | const char *const _sys_exclist[] = { |
| 60 | "not used", |
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| 61 | "not used", |
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| 62 | "invalid kill of a task with a shadow pointer set", /* 2 */ |
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| 63 | "cleanup push: no more cleanups handlers", |
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| 64 | "invalid operation for a task", |
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| 65 | "not used", |
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| 66 | "no more OSLib events posted (see oslib/kl/event.c)", |
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| 67 | "deadline miss", |
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| 68 | "wcet violation", |
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| 69 | "task activated at a wrong time (too early?)", |
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| 70 | "mutex owner killed", /* 10 */ |
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| 71 | "SRP: invalid lock", |
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| 72 | "Dummy task: invalid operation", |
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| 73 | "Sporadic Server: invalid replenishment", |
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| 74 | "ARP: table full", |
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| 75 | "Netbuff: init", |
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| 76 | "Netbuff: get", |
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| 77 | "Netbuff: already free", |
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| 78 | "Netbuff: release", |
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| 79 | "UDP: Bad checksum" |
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| 80 | }; |
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| 81 | |||
| 82 | static char shutdown_message_buffer[500]; |
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| 83 | static int myflag_shutdown = 0; |
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| 84 | |||
| 38 | pj | 85 | /* |
| 86 | This exception handler should be good for text applications that do NOT |
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| 87 | use graphics |
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| 88 | */ |
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| 89 | int set_default_exception_handler(void) |
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| 90 | { |
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| 91 | struct sigaction action; |
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| 92 | |||
| 93 | myflag = 0; |
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| 94 | |||
| 95 | sys_atrunlevel(theend, NULL, RUNLEVEL_AFTER_EXIT); |
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| 96 | |||
| 97 | /* Init the standard S.Ha.R.K. exception handler */ |
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| 98 | action.sa_flags = SA_SIGINFO; /* Set the signal action */ |
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| 99 | action.sa_sigaction = thehandler; |
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| 100 | action.sa_handler = 0; |
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| 101 | sigfillset(&action.sa_mask); /* we block all the other signals... */ |
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| 102 | |||
| 103 | return sigaction(SIGHEXC, &action, NULL); /* set the signal */ |
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| 104 | } |
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| 105 | |||
| 157 | pj | 106 | int sys_shutdown_message(char *fmt,...) |
| 107 | { |
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| 108 | va_list parms; |
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| 109 | int result = -1; |
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| 110 | |||
| 111 | if (!myflag_shutdown) { |
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| 112 | myflag_shutdown = 1; |
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| 113 | va_start(parms,fmt); |
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| 114 | result = vsprintf(shutdown_message_buffer,fmt,parms); |
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| 115 | va_end(parms); |
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| 116 | } |
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| 117 | |||
| 118 | return(result); |
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| 119 | } |
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| 120 | |||
| 38 | pj | 121 | static void thehandler(int signo, siginfo_t *info, void *extra) |
| 122 | { |
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| 123 | if (!myflag) { |
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| 124 | myflag = 1; |
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| 125 | myinfo = *info; |
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| 126 | sys_gettime(&mytime), |
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| 127 | |||
| 128 | sys_abort(AHEXC); |
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| 129 | } |
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| 130 | } |
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| 131 | |||
| 132 | static void theend(void *arg) |
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| 133 | { |
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| 445 | giacomo | 134 | |
| 38 | pj | 135 | if (myflag) { |
| 157 | pj | 136 | cprintf("S.Ha.R.K. Exception raised!!!\n"); |
| 137 | cprintf("Time (s:ns) :%ld:%ld\n", mytime.tv_sec, mytime.tv_nsec); |
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| 138 | cprintf("Exception number:%d (%s)\n", myinfo.si_value.sival_int, |
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| 139 | _sys_exclist[myinfo.si_value.sival_int]); |
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| 140 | cprintf("PID :%d (%s)\n", myinfo.si_task, |
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| 141 | proc_table[myinfo.si_task].name); |
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| 142 | cprintf("Avail time : %d\n", proc_table[myinfo.si_task].avail_time); |
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| 445 | giacomo | 143 | |
| 38 | pj | 144 | } |
| 157 | pj | 145 | if (myflag_shutdown) { |
| 146 | cprintf("\nShutdown message:\n%s\n", shutdown_message_buffer); |
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| 147 | } |
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| 148 | |||
| 38 | pj | 149 | } |
| 150 | |||
| 151 | |||
| 152 |