/* ----------------------------------------------------------------------------- 
 * init.c
 *
 *     Initialize the wad system.  This sets up a signal handler for catching
 *     SIGSEGV, SIGBUS, and SIGABRT.
 * 
 * Author(s) : David Beazley (beazley@cs.uchicago.edu)
 *
 * Copyright (C) 2000.  The University of Chicago. 
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 * 
 * See the file COPYING for a complete copy of the LGPL.
 * ----------------------------------------------------------------------------- */

#include "wad.h"

static char cvs[] = "$Id: init.c 10001 2007-10-17 21:33:57Z wsfulton $";

/* Debugging flag */
int    wad_debug_mode = 0;

/* Initialize wad */
void wad_init() {
  static int init = 0;

  wad_memory_init();
  if (getenv("WAD_DEBUG_SEGMENT")) {
    wad_debug_mode |= DEBUG_SEGMENT;
  }
  if (getenv("WAD_DEBUG_SYMBOL")) {
    wad_debug_mode |= DEBUG_SYMBOL;
  }

  if (getenv("WAD_DEBUG_OBJECT")) {
    wad_debug_mode |= DEBUG_OBJECT;
  }

  if (getenv("WAD_DEBUG_FILE")) {
    wad_debug_mode |= DEBUG_FILE;
  }

  if (getenv("WAD_DEBUG_HOLD")) {
    wad_debug_mode |= DEBUG_HOLD;
  }

  if (getenv("WAD_DEBUG_STABS")) {
    wad_debug_mode |= DEBUG_STABS;
  }

  if (getenv("WAD_DEBUG_RETURN")) {
    wad_debug_mode |= DEBUG_RETURN;
  }

  if (getenv("WAD_DEBUG_SYMBOL_SEARCH")) {
    wad_debug_mode |= DEBUG_SYMBOL_SEARCH;
  }

  if (getenv("WAD_DEBUG_INIT")) {
    wad_debug_mode |= DEBUG_INIT;
  }

  if (getenv("WAD_DEBUG_STACK")) {
    wad_debug_mode |= DEBUG_STACK;
  }

  if (getenv("WAD_DEBUG_UNWIND")) {
    wad_debug_mode |= DEBUG_UNWIND;
  }

  if (getenv("WAD_DEBUG_SIGNAL")) {
    wad_debug_mode |= DEBUG_SIGNAL;
  }

  if (getenv("WAD_NOSTACK")) {
    wad_debug_mode |= DEBUG_NOSTACK;
  }

  if (getenv("WAD_ONESHOT")) {
    wad_debug_mode |= DEBUG_ONESHOT;
  }

  if (getenv("WAD_DEBUG_STRING")) {
    wad_debug_mode |= DEBUG_STRING;
  }

  if (getenv("WAD_DEBUG_MEMORY")) {
    wad_debug_mode |= DEBUG_MEMORY;
  }

  if (wad_debug_mode & DEBUG_INIT) {
    wad_printf("WAD: initializing\n");
  }


  if (!init) {
    wad_signal_init();
    wad_object_reset();
  }
  init = 1;
}