--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/ada/bindusg.adb	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,333 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT COMPILER COMPONENTS                         --
+--                                                                          --
+--                             B I N D U S G                                --
+--                                                                          --
+--                                 B o d y                                  --
+--                                                                          --
+--          Copyright (C) 1992-2017, 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.  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.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+with Osint;  use Osint;
+with Output; use Output;
+with Switch; use Switch;
+
+with System.WCh_Con; use System.WCh_Con;
+
+package body Bindusg is
+
+   Already_Displayed : Boolean := False;
+   --  Set True if Display called, used to avoid showing usage information
+   --  more than once.
+
+   -------------
+   -- Display --
+   -------------
+
+   procedure Display is
+   begin
+      if Already_Displayed then
+         return;
+      else
+         Already_Displayed := True;
+      end if;
+
+      --  Usage line
+
+      Write_Str ("Usage: ");
+      Write_Program_Name;
+      Write_Char (' ');
+      Write_Str ("switches lfile");
+      Write_Eol;
+      Write_Eol;
+
+      Display_Usage_Version_And_Help;
+
+      --  Line for @response_file
+
+      Write_Line
+        ("  @<resp_file> Get arguments from response file");
+      Write_Eol;
+
+      --  Line for -aO switch
+
+      Write_Line
+        ("  -aOdir    Specify library files search path");
+
+      --  Line for -aI switch
+
+      Write_Line
+        ("  -aIdir    Specify source files search path");
+
+      --  Line for a switch
+
+      Write_Line
+        ("  -a        Automatically initialize elaboration procedure");
+
+      --  Lines for -A switch
+
+      Write_Line
+        ("  -A        Give list of ALI files in partition");
+      Write_Line
+        ("  -A=file   Write ALI file list to named file");
+
+      --  Line for -b switch
+
+      Write_Line
+        ("  -b        Generate brief messages to stderr even if verbose mode "
+         & "set");
+
+      --  Line for -c switch
+
+      Write_Line
+        ("  -c        Check only, no generation of binder output file");
+
+      --  Line for -d switch
+
+      Write_Line
+        ("  -dnn[k|m] Default primary stack size = nn [kilo|mega] bytes");
+
+      --  Line for D switch
+
+      Write_Line
+        ("  -Dnn[k|m] Default secondary stack size = nn [kilo|mega] bytes");
+
+      --  Line for -e switch
+
+      Write_Line
+        ("  -e        Output complete list of elaboration order dependencies");
+
+      --  Line for -E switch
+
+      Write_Line
+        ("  -Ea       Store tracebacks in exception occurrences");
+      Write_Line
+        ("  -Es       Store tracebacks in exception occurrences,");
+      Write_Line
+        ("            and enable symbolic tracebacks");
+      Write_Line
+        ("  -E        Same as -Ea");
+
+      --  Line for -f switch
+
+      Write_Line
+        ("  -ffile    Force elaboration order from given file");
+
+      --  Line for -F switch
+
+      Write_Line
+        ("  -F        Force checking of elaboration Flags");
+
+      --  Line for -h switch
+
+      Write_Line
+        ("  -h        Output this usage (help) information");
+
+      --  Lines for -I switch
+
+      Write_Line
+        ("  -Idir     Specify library and source files search path");
+      Write_Line
+        ("  -I-       Don't look for sources & library files in default "
+         & "directory");
+
+      --  Line for -K switch
+
+      Write_Line
+        ("  -K        Give list of linker options specified for link");
+
+      --  Line for -l switch
+
+      Write_Line
+        ("  -l        Output chosen elaboration order");
+
+      --  Line of -L switch
+
+      Write_Line
+        ("  -Lxyz     Library build: adainit/final renamed to xyzinit/final, "
+         & "implies -n");
+
+      --  Line for -m switch
+
+      Write_Line
+        ("  -mnnn     Limit number of detected errors/warnings to nnn "
+         & "(1-999999)");
+
+      --  Line for -M switch
+
+      Write_Line
+        ("  -Mxyz     Rename generated main program from main to xyz");
+
+      --  Line for -n switch
+
+      Write_Line
+        ("  -n        No Ada main program (foreign main routine)");
+
+      --  Line for -nostdinc
+
+      Write_Line
+        ("  -nostdinc Don't look for source files in the system default "
+         & "directory");
+
+      --  Line for -nostdlib
+
+      Write_Line
+        ("  -nostdlib Don't look for library files in the system default "
+         & "directory");
+
+      --  Line for -o switch
+
+      Write_Line
+        ("  -o file   Give the output file name (default is b~xxx.adb)");
+
+      --  Line for -O switch
+
+      Write_Line
+        ("  -O        Give list of objects required for link");
+
+      --  Line for -p switch
+
+      Write_Line
+        ("  -p        Pessimistic (worst-case) elaboration order");
+
+      --  Line for -P switch
+
+      Write_Line
+        ("  -P        Generate binder file suitable for CodePeer");
+
+      --  Line for Q switch
+
+      Write_Line
+        ("  -Qnnn     Generate nnn default-sized secondary stacks");
+
+      --  Line for -r switch
+
+      Write_Line
+        ("  -r        List restrictions that could be applied to this "
+         & "partition");
+
+      --  Line for -R switch
+
+      Write_Line
+        ("  -R        List sources referenced in closure");
+
+      --  Line for -s switch
+
+      Write_Line
+        ("  -s        Require all source files to be present");
+
+      --  Line for -S?? switch
+
+      Write_Line
+        ("  -S??      Sin/lo/hi/xx/ev Initialize_Scalars "
+         & "invalid/low/high/hex/env var");
+
+      --  Line for -static
+
+      Write_Line
+        ("  -static   Link against a static GNAT run time");
+
+      --  Line for -shared
+
+      Write_Line
+        ("  -shared   Link against a shared GNAT run time");
+
+      --  Line for -t switch
+
+      Write_Line
+        ("  -t        Tolerate time stamp and other consistency errors");
+
+      --  Line for -T switch
+
+      Write_Line
+        ("  -Tn       Set time slice value to n milliseconds (n >= 0)");
+
+      --  Line for -u switch
+
+      Write_Line
+        ("  -un       Enable dynamic stack analysis, with n results stored");
+
+      --  Line for -v switch
+
+      Write_Line
+        ("  -v        Verbose mode. Error messages, header, summary output to "
+         & "stdout");
+
+      --  Line for -V switch
+
+      Write_Line
+        ("  -Vkey=val Record bind-time variable key with value val");
+      --  Line for -w switch
+
+      Write_Line
+        ("  -wx       Warning mode. (x=s/e for suppress/treat as error)");
+
+      --  Line for -W switch
+
+      Write_Str
+        ("  -W?       Wide character encoding method (");
+
+      for J in WC_Encoding_Method loop
+         Write_Char (WC_Encoding_Letters (J));
+
+         if J = WC_Encoding_Method'Last then
+            Write_Char (')');
+         else
+            Write_Char ('/');
+         end if;
+      end loop;
+
+      Write_Eol;
+
+      --  Line for -x switch
+
+      Write_Line
+        ("  -x        Exclude source files (check object consistency only)");
+
+      --  Line for -X switch
+
+      Write_Line
+        ("  -Xnnn     Default exit status value = nnn");
+
+      --  Line for -y switch
+
+      Write_Line
+        ("  -y        Enable leap seconds");
+
+      --  Line for -z switch
+
+      Write_Line
+        ("  -z        No main subprogram (zero main)");
+
+      --  Line for -Z switch
+
+      Write_Line
+        ("  -Z        Zero formatting in auxiliary outputs (-e, -K, -l, -R)");
+
+      --  Line for --RTS
+
+      Write_Line
+        ("  --RTS=dir Specify the default source and object search path");
+
+      --  Line for sfile
+
+      Write_Line
+        ("  lfile     Library file names");
+   end Display;
+
+end Bindusg;