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

   Copyright 2008, 2009, 2010 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 <setjmp.h>

jmp_buf env;

volatile int longjmps = 0;

volatile int resumes = 0;

int

call_longjmp (jmp_buf *buf)

{

  longjmps++;

  longjmp (*buf, 1);

}

void

hidden_longjmp (void)

{

  if (setjmp (env) == 0) /* longjmp caught */

    {

      call_longjmp (&env);

    }

  else

    resumes++;

}

int

main ()

{

  volatile int i = 0;

  /* Pattern 1 - simple longjmp.  */

  if (setjmp (env) == 0) /* patt1 */

    {

      longjmps++;

      longjmp (env, 1);

    }

  else

    {

      resumes++;

    }

  i = 1; /* miss_step_1 */

  /* Pattern 2 - longjmp from an inner function.  */

  if (setjmp (env) == 0) /* patt2 */

    {

      call_longjmp (&env);

    }

  else

    {

      resumes++;

    }

  i = 2; /* miss_step_2 */

  /* Pattern 3 - setjmp/longjmp inside stepped-over function.  */

  hidden_longjmp (); /* patt3 */

  i = 3; /* patt_end3.  */

  return 0;

}