159 lines
3.5 KiB
C
159 lines
3.5 KiB
C
/* Copyright (C) 2002-2015 Free Software Foundation, Inc.
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Contributed by Andy Vaught and Paul Brook <paul@nowt.org>
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This file is part of the GNU Fortran runtime library (libgfortran).
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Libgfortran is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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Libgfortran is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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#include "libgfortran.h"
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#include <stdlib.h>
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#include <string.h>
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#include <limits.h>
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#include <errno.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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/* Stupid function to be sure the constructor is always linked in, even
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in the case of static linking. See PR libfortran/22298 for details. */
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void
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stupid_function_name_for_static_linking (void)
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{
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return;
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}
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options_t options;
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/* This will be 0 for little-endian
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machines and 1 for big-endian machines.
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Currently minimal libgfortran only runs on little-endian devices
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which don't support constructors so this is just a constant. */
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int big_endian = 0;
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static int argc_save;
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static char **argv_save;
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static const char *exe_path;
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/* recursion_check()-- It's possible for additional errors to occur
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* during fatal error processing. We detect this condition here and
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* exit with code 4 immediately. */
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#define MAGIC 0x20DE8101
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static void
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recursion_check (void)
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{
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static int magic = 0;
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/* Don't even try to print something at this point */
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if (magic == MAGIC)
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sys_abort ();
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magic = MAGIC;
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}
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#define STRERR_MAXSZ 256
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void
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os_error (const char *message)
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{
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recursion_check ();
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printf ("Operating system error: ");
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printf ("%s\n", message);
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exit (1);
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}
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iexport(os_error);
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void
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runtime_error (const char *message, ...)
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{
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va_list ap;
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recursion_check ();
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printf ("Fortran runtime error: ");
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va_start (ap, message);
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vprintf (message, ap);
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va_end (ap);
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printf ("\n");
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exit (2);
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}
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iexport(runtime_error);
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/* void runtime_error_at()-- These are errors associated with a
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* run time error generated by the front end compiler. */
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void
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runtime_error_at (const char *where, const char *message, ...)
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{
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va_list ap;
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recursion_check ();
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printf ("Fortran runtime error: ");
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va_start (ap, message);
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vprintf (message, ap);
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va_end (ap);
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printf ("\n");
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exit (2);
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}
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iexport(runtime_error_at);
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/* Return the full path of the executable. */
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char *
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full_exe_path (void)
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{
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return (char *) exe_path;
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}
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/* Set the saved values of the command line arguments. */
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void
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set_args (int argc, char **argv)
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{
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argc_save = argc;
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argv_save = argv;
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exe_path = argv[0];
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}
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iexport(set_args);
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/* Retrieve the saved values of the command line arguments. */
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void
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get_args (int *argc, char ***argv)
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{
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*argc = argc_save;
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*argv = argv_save;
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}
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/* sys_abort()-- Terminate the program showing backtrace and dumping
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core. */
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void
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sys_abort (void)
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{
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printf ("Abort called.\n");
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abort();
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}
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