Rev 38 | Rev 445 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 38 | pj | 1 | /* |
| 2 | * Project: S.Ha.R.K. |
||
| 3 | * |
||
| 4 | * Coordinators: |
||
| 5 | * Giorgio Buttazzo <giorgio@sssup.it> |
||
| 6 | * Paolo Gai <pj@gandalf.sssup.it> |
||
| 7 | * |
||
| 8 | * Authors : |
||
| 9 | * Paolo Gai <pj@gandalf.sssup.it> |
||
| 10 | * (see the web pages for full authors list) |
||
| 11 | * |
||
| 12 | * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy) |
||
| 13 | * |
||
| 14 | * http://www.sssup.it |
||
| 15 | * http://retis.sssup.it |
||
| 16 | * http://shark.sssup.it |
||
| 17 | */ |
||
| 18 | |||
| 19 | /** |
||
| 20 | ------------ |
||
| 157 | pj | 21 | CVS : $Id: exchand.c,v 1.2 2003-05-01 19:40:52 pj Exp $ |
| 38 | pj | 22 | |
| 23 | File: $File$ |
||
| 157 | pj | 24 | Revision: $Revision: 1.2 $ |
| 25 | Last update: $Date: 2003-05-01 19:40:52 $ |
||
| 38 | pj | 26 | ------------ |
| 27 | **/ |
||
| 28 | |||
| 29 | /* |
||
| 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 |
||
| 33 | * it under the terms of the GNU General Public License as published by |
||
| 34 | * the Free Software Foundation; either version 2 of the License, or |
||
| 35 | * (at your option) any later version. |
||
| 36 | * |
||
| 37 | * This program is distributed in the hope that it will be useful, |
||
| 38 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
||
| 39 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||
| 40 | * GNU General Public License for more details. |
||
| 41 | * |
||
| 42 | * You should have received a copy of the GNU General Public License |
||
| 43 | * along with this program; if not, write to the Free Software |
||
| 44 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
||
| 45 | * |
||
| 46 | */ |
||
| 47 | |||
| 48 | #include <kernel/kern.h> |
||
| 49 | |||
| 50 | static int myflag; |
||
| 51 | static siginfo_t myinfo; |
||
| 52 | static struct timespec mytime; |
||
| 53 | |||
| 54 | static void thehandler(int signo, siginfo_t *info, void *extra); |
||
| 55 | static void theend(void *arg); |
||
| 56 | |||
| 157 | pj | 57 | const char *const _sys_exclist[] = { |
| 58 | "not used", |
||
| 59 | "not used", |
||
| 60 | "invalid kill of a task with a shadow pointer set", /* 2 */ |
||
| 61 | "cleanup push: no more cleanups handlers", |
||
| 62 | "invalid operation for a task", |
||
| 63 | "not used", |
||
| 64 | "no more OSLib events posted (see oslib/kl/event.c)", |
||
| 65 | "deadline miss", |
||
| 66 | "wcet violation", |
||
| 67 | "task activated at a wrong time (too early?)", |
||
| 68 | "mutex owner killed", /* 10 */ |
||
| 69 | "SRP: invalid lock", |
||
| 70 | "Dummy task: invalid operation", |
||
| 71 | "Sporadic Server: invalid replenishment", |
||
| 72 | "ARP: table full", |
||
| 73 | "Netbuff: init", |
||
| 74 | "Netbuff: get", |
||
| 75 | "Netbuff: already free", |
||
| 76 | "Netbuff: release", |
||
| 77 | "UDP: Bad checksum" |
||
| 78 | }; |
||
| 79 | |||
| 80 | static char shutdown_message_buffer[500]; |
||
| 81 | static int myflag_shutdown = 0; |
||
| 82 | |||
| 38 | pj | 83 | /* |
| 84 | This exception handler should be good for text applications that do NOT |
||
| 85 | use graphics |
||
| 86 | */ |
||
| 87 | int set_default_exception_handler(void) |
||
| 88 | { |
||
| 89 | struct sigaction action; |
||
| 90 | |||
| 91 | myflag = 0; |
||
| 92 | |||
| 93 | sys_atrunlevel(theend, NULL, RUNLEVEL_AFTER_EXIT); |
||
| 94 | |||
| 95 | /* Init the standard S.Ha.R.K. exception handler */ |
||
| 96 | action.sa_flags = SA_SIGINFO; /* Set the signal action */ |
||
| 97 | action.sa_sigaction = thehandler; |
||
| 98 | action.sa_handler = 0; |
||
| 99 | sigfillset(&action.sa_mask); /* we block all the other signals... */ |
||
| 100 | |||
| 101 | return sigaction(SIGHEXC, &action, NULL); /* set the signal */ |
||
| 102 | } |
||
| 103 | |||
| 157 | pj | 104 | int sys_shutdown_message(char *fmt,...) |
| 105 | { |
||
| 106 | va_list parms; |
||
| 107 | int result = -1; |
||
| 108 | |||
| 109 | if (!myflag_shutdown) { |
||
| 110 | myflag_shutdown = 1; |
||
| 111 | va_start(parms,fmt); |
||
| 112 | result = vsprintf(shutdown_message_buffer,fmt,parms); |
||
| 113 | va_end(parms); |
||
| 114 | } |
||
| 115 | |||
| 116 | return(result); |
||
| 117 | } |
||
| 118 | |||
| 38 | pj | 119 | static void thehandler(int signo, siginfo_t *info, void *extra) |
| 120 | { |
||
| 121 | if (!myflag) { |
||
| 122 | myflag = 1; |
||
| 123 | myinfo = *info; |
||
| 124 | sys_gettime(&mytime), |
||
| 125 | |||
| 126 | sys_abort(AHEXC); |
||
| 127 | } |
||
| 128 | } |
||
| 129 | |||
| 130 | static void theend(void *arg) |
||
| 131 | { |
||
| 132 | if (myflag) { |
||
| 157 | pj | 133 | cprintf("S.Ha.R.K. Exception raised!!!\n"); |
| 134 | cprintf("Time (s:ns) :%ld:%ld\n", mytime.tv_sec, mytime.tv_nsec); |
||
| 135 | cprintf("Exception number:%d (%s)\n", myinfo.si_value.sival_int, |
||
| 136 | _sys_exclist[myinfo.si_value.sival_int]); |
||
| 137 | cprintf("PID :%d (%s)\n", myinfo.si_task, |
||
| 138 | proc_table[myinfo.si_task].name); |
||
| 139 | cprintf("Avail time : %d\n", proc_table[myinfo.si_task].avail_time); |
||
| 38 | pj | 140 | } |
| 157 | pj | 141 | if (myflag_shutdown) { |
| 142 | cprintf("\nShutdown message:\n%s\n", shutdown_message_buffer); |
||
| 143 | } |
||
| 144 | |||
| 38 | pj | 145 | } |
| 146 | |||
| 147 | |||
| 148 |