1 files changed, 109 insertions, 0 deletions
diff --git a/libgfortran/runtime/stop.c b/libgfortran/runtime/stop.c
new file mode 100644
index 000000000..29f5031b3
--- /dev/null
+++ b/libgfortran/runtime/stop.c
@@ -0,0 +1,109 @@
+/* Implementation of the STOP statement.
+   Copyright 2002, 2005, 2007, 2009, 2010 Free Software Foundation, Inc.
+   Contributed by Paul Brook <paul@nowt.org>
+
+This file is part of the GNU Fortran 95 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 of the License, 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 <string.h>
+
+/* A numeric STOP statement.  */
+
+extern void stop_numeric (GFC_INTEGER_4)
+  __attribute__ ((noreturn));
+export_proto(stop_numeric);
+
+void
+stop_numeric (GFC_INTEGER_4 code)
+{
+  if (code == -1)
+    code = 0;
+  else
+    st_printf ("STOP %d\n", (int)code);
+
+  sys_exit (code);
+}
+
+
+/* A Fortran 2008 numeric STOP statement.  */
+
+extern void stop_numeric_f08 (GFC_INTEGER_4)
+  __attribute__ ((noreturn));
+export_proto(stop_numeric_f08);
+
+void
+stop_numeric_f08 (GFC_INTEGER_4 code)
+{
+  st_printf ("STOP %d\n", (int)code);
+  sys_exit (code);
+}
+
+
+/* A character string or blank STOP statement.  */
+
+void
+stop_string (const char *string, GFC_INTEGER_4 len)
+{
+  if (string)
+    {
+      st_printf ("STOP ");
+      while (len--)
+	st_printf ("%c", *(string++));
+      st_printf ("\n");
+    }
+  sys_exit (0);
+}
+
+
+/* Per Fortran 2008, section 8.4:  "Execution of a STOP statement initiates
+   normal termination of execution. Execution of an ERROR STOP statement
+   initiates error termination of execution."  Thus, error_stop_string returns
+   a nonzero exit status code.  */
+
+extern void error_stop_string (const char *, GFC_INTEGER_4)
+  __attribute__ ((noreturn));
+export_proto(error_stop_string);
+
+void
+error_stop_string (const char *string, GFC_INTEGER_4 len)
+{
+  st_printf ("ERROR STOP ");
+  while (len--)
+    st_printf ("%c", *(string++));
+  st_printf ("\n");
+
+  sys_exit (1);
+}
+
+
+/* A numeric ERROR STOP statement.  */
+
+extern void error_stop_numeric (GFC_INTEGER_4)
+  __attribute__ ((noreturn));
+export_proto(error_stop_numeric);
+
+void
+error_stop_numeric (GFC_INTEGER_4 code)
+{
+  st_printf ("ERROR STOP %d\n", (int) code);
+  sys_exit (code);
+}