--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/ada/libgnat/g-timsta.adb	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,59 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT RUN-TIME COMPONENTS                         --
+--                                                                          --
+--                       G N A T . T I M E _ S T A M P                      --
+--                                                                          --
+--                                 B o d y                                  --
+--                                                                          --
+--          Copyright (C) 2008-2017, 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.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+with Interfaces.C; use Interfaces.C;
+
+package body GNAT.Time_Stamp is
+
+   subtype time_stamp is char_array (0 .. 22);
+   type time_stamp_ptr is access all time_stamp;
+   --  The desired ISO 8601 string format has exactly 22 characters. We add
+   --  one additional character for '\0'. The indexing starts from zero to
+   --  accommodate the C layout.
+
+   procedure gnat_current_time_string (Value : time_stamp_ptr);
+   pragma Import (C, gnat_current_time_string, "__gnat_current_time_string");
+
+   ------------------
+   -- Current_Time --
+   ------------------
+
+   function Current_Time return String is
+      Result : aliased time_stamp;
+
+   begin
+      gnat_current_time_string (Result'Unchecked_Access);
+      Result (22) := nul;
+
+      return To_Ada (Result);
+   end Current_Time;
+
+end GNAT.Time_Stamp;