gcc/ada/mlib-tgt-specific-mingw.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                    M L I B . T G T . S P E C I F I C                     --
   6 --                            (Windows Version)                             --
   7 --                                                                          --
   8 --                                 B o d y                                  --
   9 --                                                                          --
  10 --          Copyright (C) 2002-2010, Free Software Foundation, Inc.         --
  11 --                                                                          --
  12 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  13 -- terms of the  GNU General Public License as published  by the Free Soft- --
  14 -- ware  Foundation;  either version 3,  or (at your option) any later ver- --
  15 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  16 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  17 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  18 -- for  more details.  You should have  received  a copy of the GNU General --
  19 -- Public License  distributed with GNAT; see file COPYING3.  If not, go to --
  20 -- http://www.gnu.org/licenses for a complete copy of the license.          --
  21 --                                                                          --
  22 -- GNAT was originally developed  by the GNAT team at  New York University. --
  23 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  24 --                                                                          --
  25 ------------------------------------------------------------------------------
  26
  27 --  This is the Windows version of the body. Works only with GCC versions
  28 --  supporting the "-shared" option.
  29
  30 with Opt;
  31 with Output; use Output;
  32
  33 with MLib.Fil;
  34 with MLib.Utl;
  35
  36 package body MLib.Tgt.Specific is
  37
  38    package Files renames MLib.Fil;
  39    package Tools renames MLib.Utl;
  40
  41    --  Non default subprograms
  42
  43    procedure Build_Dynamic_Library
  44      (Ofiles       : Argument_List;
  45       Options      : Argument_List;
  46       Interfaces   : Argument_List;
  47       Lib_Filename : String;
  48       Lib_Dir      : String;
  49       Symbol_Data  : Symbol_Record;
  50       Driver_Name  : Name_Id := No_Name;
  51       Lib_Version  : String  := "";
  52       Auto_Init    : Boolean := False);
  53
  54    function DLL_Ext return String;
  55
  56    function DLL_Prefix return String;
  57
  58    function Is_Archive_Ext (Ext : String) return Boolean;
  59
  60    function Library_Major_Minor_Id_Supported return Boolean;
  61
  62    function PIC_Option return String;
  63
  64    Shared_Libgcc : aliased String := "-shared-libgcc";
  65
  66    Shared_Libgcc_Switch : constant Argument_List :=
  67                             (1 => Shared_Libgcc'Access);
  68
  69    ---------------------------
  70    -- Build_Dynamic_Library --
  71    ---------------------------
  72
  73    procedure Build_Dynamic_Library
  74      (Ofiles       : Argument_List;
  75       Options      : Argument_List;
  76       Interfaces   : Argument_List;
  77       Lib_Filename : String;
  78       Lib_Dir      : String;
  79       Symbol_Data  : Symbol_Record;
  80       Driver_Name  : Name_Id := No_Name;
  81       Lib_Version  : String  := "";
  82       Auto_Init    : Boolean := False)
  83    is
  84       pragma Unreferenced (Symbol_Data);
  85       pragma Unreferenced (Interfaces);
  86       pragma Unreferenced (Lib_Version);
  87       pragma Unreferenced (Auto_Init);
  88
  89       Lib_File : constant String :=
  90                    Lib_Dir & Directory_Separator &
  91                    DLL_Prefix & Files.Append_To (Lib_Filename, DLL_Ext);
  92
  93    --  Start of processing for Build_Dynamic_Library
  94
  95    begin
  96       if Opt.Verbose_Mode then
  97          Write_Str ("building relocatable shared library ");
  98          Write_Line (Lib_File);
  99       end if;
 100
 101       Tools.Gcc
 102         (Output_File => Lib_File,
 103          Objects     => Ofiles,
 104          Options     => Shared_Libgcc_Switch,
 105          Options_2   => Options,
 106          Driver_Name => Driver_Name);
 107    end Build_Dynamic_Library;
 108
 109    -------------
 110    -- DLL_Ext --
 111    -------------
 112
 113    function DLL_Ext return String is
 114    begin
 115       return "dll";
 116    end DLL_Ext;
 117
 118    ----------------
 119    -- DLL_Prefix --
 120    ----------------
 121
 122    function DLL_Prefix return String is
 123    begin
 124       return "lib";
 125    end DLL_Prefix;
 126
 127    --------------------
 128    -- Is_Archive_Ext --
 129    --------------------
 130
 131    function Is_Archive_Ext (Ext : String) return Boolean is
 132    begin
 133       return Ext = ".a" or else Ext = ".dll";
 134    end Is_Archive_Ext;
 135
 136    --------------------------------------
 137    -- Library_Major_Minor_Id_Supported --
 138    --------------------------------------
 139
 140    function Library_Major_Minor_Id_Supported return Boolean is
 141    begin
 142       return False;
 143    end Library_Major_Minor_Id_Supported;
 144
 145    ----------------
 146    -- PIC_Option --
 147    ----------------
 148
 149    function PIC_Option return String is
 150    begin
 151       return "";
 152    end PIC_Option;
 153
 154 begin
 155    Build_Dynamic_Library_Ptr := Build_Dynamic_Library'Access;
 156    DLL_Ext_Ptr               := DLL_Ext'Access;
 157    DLL_Prefix_Ptr            := DLL_Prefix'Access;
 158    Is_Archive_Ext_Ptr        := Is_Archive_Ext'Access;
 159    PIC_Option_Ptr            := PIC_Option'Access;
 160    Library_Major_Minor_Id_Supported_Ptr :=
 161                                 Library_Major_Minor_Id_Supported'Access;
 162 end MLib.Tgt.Specific;