Subversion Repositories shark

/*
 * Project: S.Ha.R.K.
 *
 * Coordinators:
 *   Giorgio Buttazzo    <giorgio@sssup.it>
 *   Paolo Gai           <pj@gandalf.sssup.it>
 *
 * Authors     :
 *   Paolo Gai           <pj@gandalf.sssup.it>
 *   (see the web pages for full authors list)
 *
 * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy)
 *
 * http://www.sssup.it
 * http://retis.sssup.it
 * http://shark.sssup.it
 */

/**
 ------------
 CVS :        $Id: exchgrx.c,v 1.2 2002-10-28 07:58:04 pj Exp $

 File:        $File$
 Revision:    $Revision: 1.2 $
 Last update: $Date: 2002-10-28 07:58:04 $
 ------------
**/

/*
 * Copyright (C) 2000 Paolo Gai
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#include <kernel/kern.h>

static int             myflag;
static siginfo_t       myinfo;
static struct timespec mytime;

static void thehandler(int signo, siginfo_t *info, void *extra);
static void theend(void *arg);

/*
   This exception handler should be good for text applications that do NOT
   use graphics
*/
int set_exchandler_grx(void)
{
  struct sigaction action;

  myflag = 0;

  sys_atrunlevel(theend, NULL, RUNLEVEL_AFTER_EXIT);

  /* Init the standard S.Ha.R.K. exception handler */
  action.sa_flags = SA_SIGINFO;            /* Set the signal action */
  action.sa_sigaction = thehandler;
  action.sa_handler = 0;
  sigfillset(&action.sa_mask); /* we block all the other signals... */

  return sigaction(SIGHEXC, &action, NULL); /* set the signal */
}

void thehandler(int signo, siginfo_t *info, void *extra)
{
  if (!myflag) {
    myflag = 1;
    myinfo = *info;
    sys_gettime(&mytime),

    sys_abort(AHEXC);
  }
}

void theend(void *arg)
{
  if (myflag) {
    kern_printf("\nS.Ha.R.K. Exception raised!!!"
                "\nTime (s:ns)     :%ld:%ld"
                "\nException number:%d"
                "\nPID             :%d\n",
                mytime.tv_sec,
                mytime.tv_nsec,
                myinfo.si_value.sival_int,
                myinfo.si_task);
  }
}