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------------------------------------------------------------------------------

--                                                                          --

--                         GNAT COMPILER COMPONENTS                         --

--                                                                          --

--                     M L I B . T G T . S P E C I F I C                    --

--                              (AIX Version)                               --

--                                                                          --

--                                 B o d y                                  --

--                                                                          --

--                     Copyright (C) 2003-2008, AdaCore                     --

--                                                                          --

-- 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 is the AIX version of the body

with Ada.Strings.Fixed; use Ada.Strings.Fixed;

with MLib.Fil;

with MLib.Utl;

with Opt;

with Output;   use Output;

with Prj.Com;

with Prj.Util; use Prj.Util;

package body MLib.Tgt.Specific is

   --  Local subprograms

   --  These *ALL* require comments ???

   function Archive_Indexer return String;

   --  What is this???

   procedure Build_Dynamic_Library

     (Ofiles       : Argument_List;

      Options      : Argument_List;

      Interfaces   : Argument_List;

      Lib_Filename : String;

      Lib_Dir      : String;

      Symbol_Data  : Symbol_Record;

      Driver_Name  : Name_Id := No_Name;

      Lib_Version  : String  := "";

      Auto_Init    : Boolean := False);

   function DLL_Ext return String;

   function Library_Major_Minor_Id_Supported return Boolean;

   function Support_For_Libraries return Library_Support;

   --  Local variables

   No_Arguments        : aliased Argument_List         := (1 .. 0 => null);

   Empty_Argument_List : constant Argument_List_Access := No_Arguments'Access;

   Bexpall : aliased String := "-Wl,-bexpall";

   Bexpall_Option : constant String_Access := Bexpall'Access;

   --  The switch to export all symbols

   Lpthreads : aliased String := "-lpthreads";

   Native_Thread_Options : aliased Argument_List := (1 => Lpthreads'Access);

   --  The switch to use when linking a library against libgnarl when using

   --  Native threads.

   Lgthreads : aliased String := "-lgthreads";

   Lmalloc   : aliased String := "-lmalloc";

   FSU_Thread_Options : aliased Argument_List :=

                          (1 => Lgthreads'Access, 2 => Lmalloc'Access);

   --  The switches to use when linking a library against libgnarl when using

   --  FSU threads.

   Thread_Options : Argument_List_Access := Empty_Argument_List;

   --  Designate the thread switches to used when linking a library against

   --  libgnarl. Depends on the thread library (Native or FSU). Resolved for

   --  the first library linked against libgnarl.

   ---------------------

   -- Archive_Indexer --

   ---------------------

   function Archive_Indexer return String is

   begin

      return "";

   end Archive_Indexer;

   ---------------------------

   -- Build_Dynamic_Library --

   ---------------------------

   procedure Build_Dynamic_Library

     (Ofiles       : Argument_List;

      Options      : Argument_List;

      Interfaces   : Argument_List;

      Lib_Filename : String;

      Lib_Dir      : String;

      Symbol_Data  : Symbol_Record;

      Driver_Name  : Name_Id := No_Name;

      Lib_Version  : String  := "";

      Auto_Init    : Boolean := False)

   is

      pragma Unreferenced (Interfaces);

      pragma Unreferenced (Symbol_Data);

      pragma Unreferenced (Lib_Version);

      pragma Unreferenced (Auto_Init);

      Lib_File : constant String :=

                   Lib_Dir & Directory_Separator & "lib" &

                   MLib.Fil.Append_To (Lib_Filename, DLL_Ext);

      --  The file name of the library

      Thread_Opts : Argument_List_Access := Empty_Argument_List;

      --  Set to Thread_Options if -lgnarl is found in the Options

   begin

      if Opt.Verbose_Mode then

         Write_Str ("building relocatable shared library ");

         Write_Line (Lib_File);

      end if;

      --  Look for -lgnarl in Options. If found, set the thread options

      for J in Options'Range loop

         if Options (J).all = "-lgnarl" then

            --  If Thread_Options is null, read s-osinte.ads to discover the

            --  thread library and set Thread_Options accordingly.

            if Thread_Options = null then

               declare

                  File : Text_File;

                  Line : String (1 .. 100);

                  Last : Natural;

               begin

                  Open

                    (File, Include_Dir_Default_Prefix & "/s-osinte.ads");

                  while not End_Of_File (File) loop

                     Get_Line (File, Line, Last);

                     if Index (Line (1 .. Last), "-lpthreads") /= 0 then

                        Thread_Options := Native_Thread_Options'Access;

                        exit;

                     elsif Index (Line (1 .. Last), "-lgthreads") /= 0 then

                        Thread_Options := FSU_Thread_Options'Access;

                        exit;

                     end if;

                  end loop;

                  Close (File);

                  if Thread_Options = null then

                     Prj.Com.Fail ("cannot find the thread library in use");

                  end if;

               exception

                  when others =>

                     Prj.Com.Fail ("cannot open s-osinte.ads");

               end;

            end if;

            Thread_Opts := Thread_Options;

            exit;

         end if;

      end loop;

      --  Finally, call GCC (or the driver specified) to build the library

      MLib.Utl.Gcc

        (Output_File => Lib_File,

         Objects     => Ofiles,

         Options     => Options & Bexpall_Option,

         Driver_Name => Driver_Name,

         Options_2   => Thread_Opts.all);

   end Build_Dynamic_Library;

   -------------

   -- DLL_Ext --

   -------------

   function DLL_Ext return String is

   begin

      return "a";

   end DLL_Ext;

   --------------------------------------

   -- Library_Major_Minor_Id_Supported --

   --------------------------------------

   function Library_Major_Minor_Id_Supported return Boolean is

   begin

      return False;

   end Library_Major_Minor_Id_Supported;

   ---------------------------

   -- Support_For_Libraries --

   ---------------------------

   function Support_For_Libraries return Library_Support is

   begin

      return Static_Only;

   end Support_For_Libraries;

begin

   Archive_Indexer_Ptr := Archive_Indexer'Access;

   Build_Dynamic_Library_Ptr := Build_Dynamic_Library'Access;

   DLL_Ext_Ptr := DLL_Ext'Access;

   Library_Major_Minor_Id_Supported_Ptr :=

                                Library_Major_Minor_Id_Supported'Access;

   Support_For_Libraries_Ptr := Support_For_Libraries'Access;

end MLib.Tgt.Specific;