--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/ada/libgnat/s-stalib.adb	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,105 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT COMPILER COMPONENTS                         --
+--                                                                          --
+--              S Y S T E M . S T A N D A R D _ L I B R A R Y               --
+--                                                                          --
+--                                 B o d y                                  --
+--                                                                          --
+--          Copyright (C) 1995-2017, 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.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+pragma Compiler_Unit_Warning;
+
+--  The purpose of this body is simply to ensure that the two with'ed units
+--  are properly included in the link. They are not with'ed from the spec
+--  of System.Standard_Library, since this would cause order of elaboration
+--  problems (Elaborate_Body would have the same problem).
+
+pragma Polling (Off);
+--  We must turn polling off for this unit, because otherwise we get
+--  elaboration circularities with Ada.Exceptions if polling is on.
+
+pragma Warnings (Off);
+--  Kill warnings from unused withs. These unused with's are here to make
+--  sure the relevant units are loaded and properly elaborated.
+
+with System.Soft_Links;
+--  Referenced directly from generated code using external symbols so it
+--  must always be present in a build, even if no unit has a direct with
+--  of this unit. Also referenced from exception handling routines.
+--  This is needed for programs that don't use exceptions explicitly but
+--  direct calls to Ada.Exceptions are generated by gigi (for example,
+--  by calling __gnat_raise_constraint_error directly).
+
+with System.Memory;
+--  Referenced directly from generated code using external symbols, so it
+--  must always be present in a build, even if no unit has a direct with
+--  of this unit.
+
+pragma Warnings (On);
+
+package body System.Standard_Library is
+
+   Runtime_Finalized : Boolean := False;
+   --  Set to True when adafinal is called. Used to ensure that subsequent
+   --  calls to adafinal after the first have no effect.
+
+   --------------------------
+   -- Abort_Undefer_Direct --
+   --------------------------
+
+   procedure Abort_Undefer_Direct is
+   begin
+      System.Soft_Links.Abort_Undefer.all;
+   end Abort_Undefer_Direct;
+
+   --------------
+   -- Adafinal --
+   --------------
+
+   procedure Adafinal is
+   begin
+      if not Runtime_Finalized then
+         Runtime_Finalized := True;
+         System.Soft_Links.Adafinal.all;
+      end if;
+   end Adafinal;
+
+   -----------------
+   -- Break_Start --
+   -----------------
+
+   procedure Break_Start;
+   pragma Export (C, Break_Start, "__gnat_break_start");
+   --  This is a dummy procedure that is called at the start of execution.
+   --  Its sole purpose is to provide a well defined point for the placement
+   --  of a main program breakpoint. This is not used anymore but kept for
+   --  bootstrapping issues (still referenced by old gnatbind generated files).
+
+   procedure Break_Start is
+   begin
+      null;
+   end Break_Start;
+
+end System.Standard_Library;