gcc/ada/mlib-tgt-mingw.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                             M L I B . T G T                              --
   6 --                            (Windows Version)                             --
   7 --                                                                          --
   8 --                                 B o d y                                  --
   9 --                                                                          --
  10 --          Copyright (C) 2002-2005, 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 2,  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 COPYING.  If not, write --
  20 -- to  the  Free Software Foundation,  51  Franklin  Street,  Fifth  Floor, --
  21 -- Boston, MA 02110-1301, USA.                                              --
  22 --                                                                          --
  23 -- GNAT was originally developed  by the GNAT team at  New York University. --
  24 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  25 --                                                                          --
  26 ------------------------------------------------------------------------------
  27
  28 --  This package provides a set of target dependent routines to build
  29 --  static, dynamic and shared libraries.
  30
  31 --  This is the Windows version of the body. Works only with GCC versions
  32 --  supporting the "-shared" option.
  33
  34 with GNAT.OS_Lib;             use GNAT.OS_Lib;
  35
  36 with Namet;  use Namet;
  37 with Opt;
  38 with Output; use Output;
  39 with Prj.Com;
  40
  41 with MLib.Fil;
  42 with MLib.Utl;
  43
  44 package body MLib.Tgt is
  45
  46    package Files renames MLib.Fil;
  47    package Tools renames MLib.Utl;
  48
  49    No_Argument_List : constant String_List := (1 .. 0 => null);
  50    --  Used as value of parameter Options or Options2 in calls to Gcc
  51
  52    ---------------------
  53    -- Archive_Builder --
  54    ---------------------
  55
  56    function Archive_Builder return String is
  57    begin
  58       return "ar";
  59    end Archive_Builder;
  60
  61    -----------------------------
  62    -- Archive_Builder_Options --
  63    -----------------------------
  64
  65    function Archive_Builder_Options return String_List_Access is
  66    begin
  67       return new String_List'(1 => new String'("cr"));
  68    end Archive_Builder_Options;
  69
  70    -----------------
  71    -- Archive_Ext --
  72    -----------------
  73
  74    function Archive_Ext return  String is
  75    begin
  76       return "a";
  77    end Archive_Ext;
  78
  79    ---------------------
  80    -- Archive_Indexer --
  81    ---------------------
  82
  83    function Archive_Indexer return String is
  84    begin
  85       return "ranlib";
  86    end Archive_Indexer;
  87
  88    -----------------------------
  89    -- Archive_Indexer_Options --
  90    -----------------------------
  91
  92    function Archive_Indexer_Options return String_List_Access is
  93    begin
  94       return new String_List (1 .. 0);
  95    end Archive_Indexer_Options;
  96
  97    ---------------------------
  98    -- Build_Dynamic_Library --
  99    ---------------------------
 100
 101    procedure Build_Dynamic_Library
 102      (Ofiles       : Argument_List;
 103       Foreign      : Argument_List;
 104       Afiles       : Argument_List;
 105       Options      : Argument_List;
 106       Options_2    : Argument_List;
 107       Interfaces   : Argument_List;
 108       Lib_Filename : String;
 109       Lib_Dir      : String;
 110       Symbol_Data  : Symbol_Record;
 111       Driver_Name  : Name_Id := No_Name;
 112       Lib_Version  : String  := "";
 113       Auto_Init    : Boolean := False)
 114    is
 115       pragma Unreferenced (Foreign);
 116       pragma Unreferenced (Afiles);
 117       pragma Unreferenced (Symbol_Data);
 118       pragma Unreferenced (Interfaces);
 119       pragma Unreferenced (Lib_Version);
 120       pragma Unreferenced (Auto_Init);
 121
 122       Lib_File : constant String :=
 123                    Lib_Dir & Directory_Separator &
 124                    Files.Ext_To (Lib_Filename, DLL_Ext);
 125
 126    --  Start of processing for Build_Dynamic_Library
 127
 128    begin
 129       if Opt.Verbose_Mode then
 130          Write_Str ("building relocatable shared library ");
 131          Write_Line (Lib_File);
 132       end if;
 133
 134       Tools.Gcc
 135         (Output_File => Lib_File,
 136          Objects     => Ofiles,
 137          Options     => No_Argument_List,
 138          Options_2   => Options & Options_2,
 139          Driver_Name => Driver_Name);
 140    end Build_Dynamic_Library;
 141
 142    -------------
 143    -- DLL_Ext --
 144    -------------
 145
 146    function DLL_Ext return String is
 147    begin
 148       return "dll";
 149    end DLL_Ext;
 150
 151    --------------------
 152    -- Dynamic_Option --
 153    --------------------
 154
 155    function Dynamic_Option return String is
 156    begin
 157       return "-shared";
 158    end Dynamic_Option;
 159
 160    -------------------
 161    -- Is_Object_Ext --
 162    -------------------
 163
 164    function Is_Object_Ext (Ext : String) return Boolean is
 165    begin
 166       return Ext = ".o";
 167    end Is_Object_Ext;
 168
 169    --------------
 170    -- Is_C_Ext --
 171    --------------
 172
 173    function Is_C_Ext (Ext : String) return Boolean is
 174    begin
 175       return Ext = ".c";
 176    end Is_C_Ext;
 177
 178    --------------------
 179    -- Is_Archive_Ext --
 180    --------------------
 181
 182    function Is_Archive_Ext (Ext : String) return Boolean is
 183    begin
 184       return Ext = ".a" or else Ext = ".dll";
 185    end Is_Archive_Ext;
 186
 187    -------------
 188    -- Libgnat --
 189    -------------
 190
 191    function Libgnat return String is
 192    begin
 193       return "libgnat.a";
 194    end Libgnat;
 195
 196    ------------------------
 197    -- Library_Exists_For --
 198    ------------------------
 199
 200    function Library_Exists_For
 201      (Project : Project_Id; In_Tree : Project_Tree_Ref) return Boolean is
 202    begin
 203       if not In_Tree.Projects.Table (Project).Library then
 204          Prj.Com.Fail ("INTERNAL ERROR: Library_Exists_For called " &
 205                        "for non library project");
 206          return False;
 207
 208       else
 209          declare
 210             Lib_Dir : constant String :=
 211               Get_Name_String
 212                 (In_Tree.Projects.Table (Project).Library_Dir);
 213             Lib_Name : constant String :=
 214               Get_Name_String
 215                 (In_Tree.Projects.Table (Project).Library_Name);
 216
 217          begin
 218             if In_Tree.Projects.Table (Project).Library_Kind =
 219               Static
 220             then
 221                return Is_Regular_File
 222                  (Lib_Dir & Directory_Separator & "lib" &
 223                   MLib.Fil.Ext_To (Lib_Name, Archive_Ext));
 224
 225             else
 226                return Is_Regular_File
 227                  (Lib_Dir & Directory_Separator &
 228                   MLib.Fil.Ext_To (Lib_Name, DLL_Ext));
 229             end if;
 230          end;
 231       end if;
 232    end Library_Exists_For;
 233
 234    ---------------------------
 235    -- Library_File_Name_For --
 236    ---------------------------
 237
 238    function Library_File_Name_For
 239      (Project : Project_Id;
 240       In_Tree : Project_Tree_Ref) return Name_Id is
 241    begin
 242       if not In_Tree.Projects.Table (Project).Library then
 243          Prj.Com.Fail ("INTERNAL ERROR: Library_File_Name_For called " &
 244                        "for non library project");
 245          return No_Name;
 246
 247       else
 248          declare
 249             Lib_Name : constant String :=
 250               Get_Name_String
 251                 (In_Tree.Projects.Table (Project).Library_Name);
 252
 253          begin
 254             if In_Tree.Projects.Table (Project).Library_Kind =
 255               Static
 256             then
 257                Name_Len := 3;
 258                Name_Buffer (1 .. Name_Len) := "lib";
 259                Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, Archive_Ext));
 260
 261             else
 262                Name_Len := 0;
 263                Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, DLL_Ext));
 264             end if;
 265
 266             return Name_Find;
 267          end;
 268       end if;
 269    end Library_File_Name_For;
 270
 271    ----------------
 272    -- Object_Ext --
 273    ----------------
 274
 275    function Object_Ext return String is
 276    begin
 277       return "o";
 278    end Object_Ext;
 279
 280    ----------------
 281    -- PIC_Option --
 282    ----------------
 283
 284    function PIC_Option return String is
 285    begin
 286       return "";
 287    end PIC_Option;
 288
 289    -----------------------------------------------
 290    -- Standalone_Library_Auto_Init_Is_Supported --
 291    -----------------------------------------------
 292
 293    function Standalone_Library_Auto_Init_Is_Supported return Boolean is
 294    begin
 295       return True;
 296    end Standalone_Library_Auto_Init_Is_Supported;
 297
 298    ---------------------------
 299    -- Support_For_Libraries --
 300    ---------------------------
 301
 302    function Support_For_Libraries return Library_Support is
 303    begin
 304       return Full;
 305    end Support_For_Libraries;
 306
 307 end MLib.Tgt;