--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/ada/libgnat/s-elaall.ads	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,57 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT RUN-TIME COMPONENTS                         --
+--                                                                          --
+--         S Y S T E M . E L A B O R A T I O N _ A L L O C A T O R S        --
+--                                                                          --
+--                                 S p e c                                  --
+--                                                                          --
+--            Copyright (C) 2014-2017, 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 package provides the interfaces for proper handling of restriction
+--  No_Standard_Allocators_After_Elaboration. It is used only by programs
+--  which use this restriction.
+
+package System.Elaboration_Allocators is
+   pragma Preelaborate;
+
+   procedure Mark_Start_Of_Elaboration;
+   --  Called right at the start of main elaboration if the program activates
+   --  restriction No_Standard_Allocators_After_Elaboration. We don't want to
+   --  rely on the normal elaboration mechanism for marking this event, since
+   --  that would require us to be sure to elaborate this first, which would
+   --  be awkward, and it is convenient to have this package be Preelaborate.
+
+   procedure Mark_End_Of_Elaboration;
+   --  Called when main elaboration is complete if the program has activated
+   --  restriction No_Standard_Allocators_After_Elaboration. This is the point
+   --  beyond which any standard allocator use will violate the restriction.
+
+   procedure Check_Standard_Allocator;
+   --  Called as part of every allocator in a program for which the restriction
+   --  No_Standard_Allocators_After_Elaboration is active. This will raise an
+   --  exception (Program_Error with an appropriate message) if it is called
+   --  after the call to Mark_End_Of_Elaboration.
+
+end System.Elaboration_Allocators;