--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/ada/put_spark_xrefs.ads	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,62 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT COMPILER COMPONENTS                         --
+--                                                                          --
+--                       P U T _ S P A R K _ X R E F S                      --
+--                                                                          --
+--                                 S p e c                                  --
+--                                                                          --
+--          Copyright (C) 2011-2016, 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.  See the GNU General Public License --
+-- for  more details.  You should have  received  a copy of the GNU General --
+-- Public License  distributed with GNAT; see file COPYING3.  If not, go to --
+-- http://www.gnu.org/licenses for a complete copy of the license.          --
+--                                                                          --
+-- GNAT was originally developed  by the GNAT team at  New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  This package contains the function used to read SPARK cross-reference
+--  information from the internal tables defined in package SPARK_Xrefs, and
+--  output text information for the ALI file. The interface allows control over
+--  the destination of the output, so that this routine can also be used for
+--  debugging purposes.
+
+with Types; use Types;
+
+generic
+   --  The following procedures are used to output text information. The
+   --  destination of the text information is thus under control of the
+   --  particular instantiation. In particular, this procedure is used to
+   --  write output to the ALI file, and also for debugging output.
+
+   with function Write_Info_Col return Positive is <>;
+   --  Return the column in which the next character will be written
+
+   with procedure Write_Info_Char (C : Character) is <>;
+   --  Output one character
+
+   with procedure Write_Info_Str (Val : String) is <>;
+   --  Output string stored in string pointer
+
+   with procedure Write_Info_Initiate (Key : Character) is <>;
+   --  Initiate write of new line to output file, the parameter is the
+   --  keyword character for the line.
+
+   with procedure Write_Info_Nat (N : Nat) is <>;
+   --  Write image of N to output file with no leading or trailing blanks
+
+   with procedure Write_Info_Terminate is <>;
+   --  Terminate current info line and output lines built in Info_Buffer
+
+procedure Put_SPARK_Xrefs;
+--  Read information from SPARK tables (SPARK_Xrefs.SPARK_Xref_Table,
+--  SPARK_Xrefs.SPARK_Scope_Table and SPARK_Xrefs.SPARK_File_Table) and output
+--  corresponding information in ALI format using the Write_Info procedures.