1 files changed, 113 insertions, 0 deletions
diff --git a/libgfortran/runtime/main.c b/libgfortran/runtime/main.c
new file mode 100644
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+++ b/libgfortran/runtime/main.c
@@ -0,0 +1,113 @@
+/* Copyright (C) 2002-2003 Free Software Foundation, Inc.
+   Contributed by Andy Vaught and Paul Brook <paul@nowt.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfor).
+
+Libgfor 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 2, or (at your option)
+any later version.
+
+Libgfor 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 libgfor; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <stddef.h>
+
+#include "libgfortran.h"
+
+/* This is the offset (in bytes) required to cast from logical(8)* to
+   logical(4)*. and still get the same result.  Will be 0 for little-endian
+   machines and 4 for big-endian machines.  */
+int l8_to_l4_offset;
+
+
+/* Figure out endianness for this machine.  */
+
+#define detetmine_endianness	prefix(determine_endianness)
+static void
+determine_endianness (void)
+{
+  union
+  {
+    GFC_LOGICAL_8 l8;
+    GFC_LOGICAL_4 l4[2];
+  } u;
+
+  u.l8 = 1;
+  if (u.l4[0])
+    l8_to_l4_offset = 0;
+  else if (u.l4[1])
+    l8_to_l4_offset = 1;
+  else
+    runtime_error ("Unable to determine machine endianness");
+}
+
+
+static int argc_save;
+static char **argv_save;
+
+/* Set the saved values of the command line arguments.  */
+
+void
+set_args (int argc, char **argv)
+{
+  argc_save = argc;
+  argv_save = argv;
+}
+
+/* Retrieve the saved values of the command line arguments.  */
+
+void
+get_args (int *argc, char ***argv)
+{
+
+  *argc = argc_save;
+  *argv = argv_save;
+}
+
+
+/* Initialize the runtime library.  */
+
+static void __attribute__((constructor))
+init (void)
+{
+  /* Figure out the machine endianness.  */
+  determine_endianness ();
+
+  /* Must be first */
+  init_variables ();
+
+  init_units ();
+
+#ifdef DEBUG
+  /* Check for special command lines.  */
+
+  if (argc > 1 && strcmp (argv[1], "--help") == 0)
+    show_variables ();
+
+/*  if (argc > 1 && strcmp(argv[1], "--resume") == 0) resume();  */
+#endif
+
+  memory_init ();
+}
+
+
+/* Cleanup the runtime library.  */
+
+static void __attribute__((destructor))
+cleanup ()
+{
+  close_units ();
+}
+