--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/ada/libgnarl/s-tpinop.adb	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,77 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                 GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS                 --
+--                                                                          --
+--               SYSTEM.TASK_PRIMITIVES.INTERRUPT_OPERATIONS                --
+--                                                                          --
+--                                 B o d y                                  --
+--                                                                          --
+--          Copyright (C) 1998-2017, Free Software Foundation, Inc.         --
+--                                                                          --
+-- GNARL 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/>.                                          --
+--                                                                          --
+-- GNARL was developed by the GNARL team at Florida State University.       --
+-- Extensive contributions were provided by Ada Core Technologies, Inc.     --
+--                                                                          --
+------------------------------------------------------------------------------
+
+package body System.Task_Primitives.Interrupt_Operations is
+
+   --  ??? The VxWorks version of System.Interrupt_Management needs to access
+   --  this array, but due to elaboration problems, it can't with this
+   --  package directly, so we export this variable for now.
+
+   Interrupt_ID_Map : array (IM.Interrupt_ID) of ST.Task_Id;
+   pragma Export (Ada, Interrupt_ID_Map,
+     "system__task_primitives__interrupt_operations__interrupt_id_map");
+
+   ----------------------
+   -- Get_Interrupt_ID --
+   ----------------------
+
+   function Get_Interrupt_ID (T : ST.Task_Id) return IM.Interrupt_ID is
+      use type ST.Task_Id;
+
+   begin
+      for Interrupt in IM.Interrupt_ID loop
+         if Interrupt_ID_Map (Interrupt) = T then
+            return Interrupt;
+         end if;
+      end loop;
+
+      raise Program_Error;
+   end Get_Interrupt_ID;
+
+   -----------------
+   -- Get_Task_Id --
+   -----------------
+
+   function Get_Task_Id (Interrupt : IM.Interrupt_ID) return ST.Task_Id is
+   begin
+      return Interrupt_ID_Map (Interrupt);
+   end Get_Task_Id;
+
+   ----------------------
+   -- Set_Interrupt_ID --
+   ----------------------
+
+   procedure Set_Interrupt_ID (Interrupt : IM.Interrupt_ID; T : ST.Task_Id) is
+   begin
+      Interrupt_ID_Map (Interrupt) := T;
+   end Set_Interrupt_ID;
+
+end System.Task_Primitives.Interrupt_Operations;