--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/ada/initialize.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,138 @@
+/****************************************************************************
+ *                                                                          *
+ *                         GNAT COMPILER COMPONENTS                         *
+ *                                                                          *
+ *                           I N I T I A L I Z E                            *
+ *                                                                          *
+ *                          C Implementation File                           *
+ *                                                                          *
+ *          Copyright (C) 1992-2017, Free Software Foundation, Inc.         *
+ *                                                                          *
+ * GNAT is free software;  you can  redistribute it  and/or modify it under *
+ * terms of the  GNU General Public License as published  by the Free Soft- *
+ * ware  Foundation;  either version 3,  or (at your option) any later ver- *
+ * sion.  GNAT is distributed in the hope that it will be useful, but WITH- *
+ * OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY *
+ * or FITNESS FOR A PARTICULAR PURPOSE.                                     *
+ *                                                                          *
+ * As a special exception 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/>.                                          *
+ *                                                                          *
+ * GNAT was originally developed  by the GNAT team at  New York University. *
+ * Extensive contributions were provided by Ada Core Technologies Inc.      *
+ *                                                                          *
+ ****************************************************************************/
+
+/*  This unit provides default implementation for __gnat_initialize ()
+    which is called before the elaboration of the partition. It is provided
+    in a separate file/object so that users can replace it easily.
+    The default implementation should be null on most targets.  */
+
+/* The following include is here to meet the published VxWorks requirement
+   that the __vxworks header appear before any other include.  */
+#ifdef __vxworks
+#include "vxWorks.h"
+#endif
+
+#ifdef IN_RTS
+#include "tconfig.h"
+#include "tsystem.h"
+/* We don't have libiberty, so use malloc.  */
+#define xmalloc(S) malloc (S)
+#define xrealloc(V,S) realloc (V,S)
+#else
+#include "config.h"
+#include "system.h"
+#endif
+
+#include "raise.h"
+#include <fcntl.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/******************************************/
+/* __gnat_initialize (NT-mingw32 Version) */
+/******************************************/
+
+#if defined (__MINGW32__)
+
+extern void __gnat_install_SEH_handler (void *);
+
+void
+__gnat_initialize (void *eh ATTRIBUTE_UNUSED)
+{
+   /* Note that we do not activate this for the compiler itself to avoid a
+      bootstrap path problem.  Older version of gnatbind will generate a call
+      to __gnat_initialize() without argument. Therefore we cannot use eh in
+      this case.  It will be possible to remove the following #ifdef at some
+      point.  */
+#ifdef IN_RTS
+   /* Install the Structured Exception handler.  */
+   if (eh)
+     __gnat_install_SEH_handler (eh);
+#endif
+}
+
+/******************************************/
+/* __gnat_initialize (init_float version) */
+/******************************************/
+
+#elif defined (__Lynx__) || defined (__FreeBSD__) || defined(__NetBSD__) \
+  || defined (__OpenBSD__) || defined (__DragonFly__)
+
+void
+__gnat_initialize (void *eh ATTRIBUTE_UNUSED)
+{
+}
+
+/***************************************/
+/* __gnat_initialize (VxWorks Version) */
+/***************************************/
+
+#elif defined(__vxworks)
+
+void
+__gnat_initialize (void *eh)
+{
+}
+
+#elif defined(_T_HPUX10) || (!defined(IN_RTS) && defined(_X_HPUX10))
+
+/************************************************/
+/* __gnat_initialize (PA-RISC HP-UX 10 Version) */
+/************************************************/
+
+extern void __main (void);
+
+void
+__gnat_initialize (void *eh ATTRIBUTE_UNUSED)
+{
+  __main ();
+}
+
+#else
+
+/* For all other versions of GNAT, the initialize routine and handler
+   installation do nothing */
+
+/***************************************/
+/* __gnat_initialize (Default Version) */
+/***************************************/
+
+void
+__gnat_initialize (void *eh ATTRIBUTE_UNUSED)
+{
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif