gcc/ada/mlib-tgt-darwin.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 --                             (Darwin Version)                             --
   7 --                                                                          --
   8 --                                 B o d y                                  --
   9 --                                                                          --
  10 --          Copyright (C) 2001-2007, 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 Darwin version of the body
  28
  29 with MLib;     use MLib;
  30 with MLib.Fil;
  31 with MLib.Utl;
  32 with Opt;      use Opt;
  33 with Output;   use Output;
  34
  35 package body MLib.Tgt.Specific is
  36
  37    --  Non default subprograms
  38
  39    function Archive_Indexer_Options return String_List_Access;
  40
  41    procedure Build_Dynamic_Library
  42      (Ofiles       : Argument_List;
  43       Options      : Argument_List;
  44       Interfaces   : Argument_List;
  45       Lib_Filename : String;
  46       Lib_Dir      : String;
  47       Symbol_Data  : Symbol_Record;
  48       Driver_Name  : Name_Id := No_Name;
  49       Lib_Version  : String  := "";
  50       Auto_Init    : Boolean := False);
  51
  52    function DLL_Ext return String;
  53
  54    function Dynamic_Option return String;
  55
  56    function Is_Archive_Ext (Ext : String) return Boolean;
  57
  58    --  Local objects
  59
  60    Flat_Namespace : aliased String := "-Wl,-flat_namespace";
  61    --  Instruct the linker to build the shared library as a flat
  62    --  namespace image. The default is a two-level namespace image.
  63
  64    Shared_Libgcc  : aliased String := "-shared-libgcc";
  65
  66    Shared_Options : constant Argument_List :=
  67                       (1 => Flat_Namespace'Access,
  68                        2 => Shared_Libgcc'Access);
  69
  70    -----------------------------
  71    -- Archive_Indexer_Options --
  72    -----------------------------
  73
  74    function Archive_Indexer_Options return String_List_Access is
  75    begin
  76       return new String_List'(1 => new String'("-c"));
  77    end Archive_Indexer_Options;
  78
  79    ---------------------------
  80    -- Build_Dynamic_Library --
  81    ---------------------------
  82
  83    procedure Build_Dynamic_Library
  84      (Ofiles       : Argument_List;
  85       Options      : Argument_List;
  86       Interfaces   : Argument_List;
  87       Lib_Filename : String;
  88       Lib_Dir      : String;
  89       Symbol_Data  : Symbol_Record;
  90       Driver_Name  : Name_Id := No_Name;
  91       Lib_Version  : String  := "";
  92       Auto_Init    : Boolean := False)
  93    is
  94       pragma Unreferenced (Interfaces);
  95       pragma Unreferenced (Symbol_Data);
  96       pragma Unreferenced (Auto_Init);
  97
  98       Lib_File : constant String :=
  99                    "lib" & Fil.Append_To (Lib_Filename, DLL_Ext);
 100
 101       Lib_Path : constant String :=
 102                    Lib_Dir & Directory_Separator & Lib_File;
 103
 104       Symbolic_Link_Needed : Boolean := False;
 105
 106    begin
 107       if Opt.Verbose_Mode then
 108          Write_Str ("building relocatable shared library ");
 109          Write_Line (Lib_File);
 110       end if;
 111
 112       --  If specified, add automatic elaboration/finalization
 113
 114       if Lib_Version = "" then
 115          Utl.Gcc
 116            (Output_File => Lib_File,
 117             Objects     => Ofiles,
 118             Options     => Options & Shared_Options,
 119             Driver_Name => Driver_Name,
 120             Options_2   => No_Argument_List);
 121
 122       else
 123          declare
 124             Maj_Version : constant String :=
 125                             Major_Id_Name (Lib_File, Lib_Version);
 126          begin
 127             if Is_Absolute_Path (Lib_Version) then
 128                Utl.Gcc
 129                  (Output_File => Lib_Version,
 130                   Objects     => Ofiles,
 131                   Options     => Options & Shared_Options,
 132                   Driver_Name => Driver_Name,
 133                   Options_2   => No_Argument_List);
 134                Symbolic_Link_Needed := Lib_Version /= Lib_File;
 135
 136             else
 137                Utl.Gcc
 138                  (Output_File => Lib_Dir & Directory_Separator & Lib_Version,
 139                   Objects     => Ofiles,
 140                   Options     => Options & Shared_Options,
 141                   Driver_Name => Driver_Name,
 142                   Options_2   => No_Argument_List);
 143                Symbolic_Link_Needed :=
 144                  Lib_Dir & Directory_Separator & Lib_Version /= Lib_File;
 145             end if;
 146
 147             if Symbolic_Link_Needed then
 148                Create_Sym_Links
 149                  (Lib_Path, Lib_Version, Lib_Dir, Maj_Version);
 150             end if;
 151          end;
 152       end if;
 153    end Build_Dynamic_Library;
 154
 155    -------------
 156    -- DLL_Ext --
 157    -------------
 158
 159    function DLL_Ext return String is
 160    begin
 161       return "dylib";
 162    end DLL_Ext;
 163
 164    --------------------
 165    -- Dynamic_Option --
 166    --------------------
 167
 168    function Dynamic_Option return String is
 169    begin
 170       return "-dynamiclib";
 171    end Dynamic_Option;
 172
 173    --------------------
 174    -- Is_Archive_Ext --
 175    --------------------
 176
 177    function Is_Archive_Ext (Ext : String) return Boolean is
 178    begin
 179       return Ext = ".dylib" or else Ext = ".a";
 180    end Is_Archive_Ext;
 181
 182 begin
 183    Archive_Indexer_Options_Ptr := Archive_Indexer_Options'Access;
 184    Build_Dynamic_Library_Ptr := Build_Dynamic_Library'Access;
 185    DLL_Ext_Ptr := DLL_Ext'Access;
 186    Dynamic_Option_Ptr := Dynamic_Option'Access;
 187    Is_Archive_Ext_Ptr := Is_Archive_Ext'Access;
 188 end MLib.Tgt.Specific;