/* Entry point of cc1, cc1plus, jc1, f771, etc.
   Exit code is FATAL_EXIT_CODE if can't open files or if there were
   any errors, or SUCCESS_EXIT_CODE if compilation succeeded.

   It is not safe to call this function more than once.  */

int
toplev_main (int argc, char **argv)
{
  expandargv (&argc, &argv);

  save_argv = CONST_CAST2 (const char **, char **, argv);

  /* Initialization of GCC's environment, and diagnostics.  */
  general_init (argv[0]);

  /* Parse the options and do minimal processing; basically just
     enough to default flags appropriately.  */
  decode_options (argc, CONST_CAST2 (const char **, char **, argv));

  init_local_tick ();

  initialize_plugins ();

  if (version_flag)
    print_version (stderr, "");

  if (help_flag)
    print_plugins_help (stderr, "");

  /* Exit early if we can (e.g. -help).  */
  if (!exit_after_options)
    do_compile ();

  if (warningcount || errorcount)
    print_ignored_options ();

  /* Invoke registered plugin callbacks if any.  */
  invoke_plugin_callbacks (PLUGIN_FINISH, NULL);

  finalize_plugins ();
  if (errorcount || sorrycount)
    return (FATAL_EXIT_CODE);

  return (SUCCESS_EXIT_CODE);
}