exception.c

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/*
 
  $Id: exception.c 23065 2016-03-02 09:05:50Z coelho $
 
  Copyright 1989-2016 MINES ParisTech
 
  This file is part of PIPS.
 
  PIPS 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
  any later version.
 
  PIPS 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 PIPS.  If not, see <http://www.gnu.org/licenses/>.
 
*/
#ifdef HAVE_CONFIG_H
    #include "pips_config.h"
#endif
/* Stack management for PIPS contexts
 *
 * A PIPS context contains a pointer in the PIPS debug level stack.
 * When a PIPS context is popped, the debug level stack is restored.
 * It may be the current level!
 *
 * Example: voir catch_user_error() in library pipmake, or a PIPS user
 * interface such as wpips, tpips or pips
 */
 
#include <stdio.h>
#include <genC.h>
#include "misc.h"
 
static stack debug_stack = NULL;
 
void push_pips_context(char const * file, char const * function, int line)
{
  pips_debug(9, "%s %s:%d\n", function, file, line);
  if (!debug_stack) debug_stack = stack_make(0, 50, 0);
  stack_push((void *) get_debug_stack_pointer(), debug_stack);
}
 
void pop_pips_context(char const * file, char const * function, int line)
{
  pips_debug(9, "%s %s:%d\n", function, file, line);
  if (!debug_stack) 
    pips_internal_error("unexpected pop without push %s %s:%d",
                        function, file, line);
  set_debug_stack_pointer((_int) stack_pop(debug_stack));
}
 
/* That's all */