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/* This testcase is part of GDB, the GNU debugger.

   Copyright 2004, 2007, 2008 Free Software Foundation, Inc.

   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 3 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, see <http://www.gnu.org/licenses/>.  */

#include <signal.h>

#include <stdlib.h>

#include <string.h>

extern void

keeper (int sig)

{

}

volatile long v1 = 0;

volatile long v2 = 0;

volatile long v3 = 0;

extern long

bowler (void)

{

  /* Try to read address zero.  Do it in a slightly convoluted way so

     that more than one instruction is used.  */

  return *(char *) (v1 + v2 + v3);

}

int

main ()

{

  static volatile int i;

  struct sigaction act;

  memset (&act, 0, sizeof act);

  act.sa_handler = keeper;

  sigaction (SIGSEGV, &act, NULL);

  bowler ();

  return 0;

}