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/* Copyright (C) 2002-2015 Free Software Foundation, Inc.
Contributed by Andy Vaught and Paul Brook <paul@nowt.org>
This file is part of the GNU Fortran runtime library (libgfortran).
Libgfortran 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, or (at your option)
any later version.
Libgfortran 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.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#include "libgfortran.h"
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include <errno.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
/* Stupid function to be sure the constructor is always linked in, even
in the case of static linking. See PR libfortran/22298 for details. */
void
stupid_function_name_for_static_linking (void)
{
return;
}
options_t options;
/* This will be 0 for little-endian
machines and 1 for big-endian machines.
Currently minimal libgfortran only runs on little-endian devices
which don't support constructors so this is just a constant. */
int big_endian = 0;
static int argc_save;
static char **argv_save;
static const char *exe_path;
/* recursion_check()-- It's possible for additional errors to occur
* during fatal error processing. We detect this condition here and
* exit with code 4 immediately. */
#define MAGIC 0x20DE8101
static void
recursion_check (void)
{
static int magic = 0;
/* Don't even try to print something at this point */
if (magic == MAGIC)
sys_abort ();
magic = MAGIC;
}
#define STRERR_MAXSZ 256
void
os_error (const char *message)
{
recursion_check ();
printf ("Operating system error: ");
printf ("%s\n", message);
exit (1);
}
iexport(os_error);
void
runtime_error (const char *message, ...)
{
va_list ap;
recursion_check ();
printf ("Fortran runtime error: ");
va_start (ap, message);
vprintf (message, ap);
va_end (ap);
printf ("\n");
exit (2);
}
iexport(runtime_error);
/* void runtime_error_at()-- These are errors associated with a
* run time error generated by the front end compiler. */
void
runtime_error_at (const char *where, const char *message, ...)
{
va_list ap;
recursion_check ();
printf ("Fortran runtime error: ");
va_start (ap, message);
vprintf (message, ap);
va_end (ap);
printf ("\n");
exit (2);
}
iexport(runtime_error_at);
/* Return the full path of the executable. */
char *
full_exe_path (void)
{
return (char *) exe_path;
}
/* Set the saved values of the command line arguments. */
void
set_args (int argc, char **argv)
{
argc_save = argc;
argv_save = argv;
exe_path = argv[0];
}
iexport(set_args);
/* Retrieve the saved values of the command line arguments. */
void
get_args (int *argc, char ***argv)
{
*argc = argc_save;
*argv = argv_save;
}
/* sys_abort()-- Terminate the program showing backtrace and dumping
core. */
void
sys_abort (void)
{
printf ("Abort called.\n");
abort();
}
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