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 Namet;  use Namet;
  35 with Opt;
  36 with Output; use Output;
  37 with Prj.Com;
  38
  39 with MLib.Fil;
  40 with MLib.Utl;
  41
  42 package body MLib.Tgt is
  43
  44    package Files renames MLib.Fil;
  45    package Tools renames MLib.Utl;
  46
  47    No_Argument_List : constant String_List := (1 .. 0 => null);
  48    --  Used as value of parameter Options or Options2 in calls to Gcc
  49
  50    ---------------------
  51    -- Archive_Builder --
  52    ---------------------
  53
  54    function Archive_Builder return String is
  55    begin
  56       return "ar";
  57    end Archive_Builder;
  58
  59    -----------------------------
  60    -- Archive_Builder_Options --
  61    -----------------------------
  62
  63    function Archive_Builder_Options return String_List_Access is
  64    begin
  65       return new String_List'(1 => new String'("cr"));
  66    end Archive_Builder_Options;
  67
  68    -----------------
  69    -- Archive_Ext --
  70    -----------------
  71
  72    function Archive_Ext return  String is
  73    begin
  74       return "a";
  75    end Archive_Ext;
  76
  77    ---------------------
  78    -- Archive_Indexer --
  79    ---------------------
  80
  81    function Archive_Indexer return String is
  82    begin
  83       return "ranlib";
  84    end Archive_Indexer;
  85
  86    -----------------------------
  87    -- Archive_Indexer_Options --
  88    -----------------------------
  89
  90    function Archive_Indexer_Options return String_List_Access is
  91    begin
  92       return new String_List (1 .. 0);
  93    end Archive_Indexer_Options;
  94
  95    ---------------------------
  96    -- Build_Dynamic_Library --
  97    ---------------------------
  98
  99    procedure Build_Dynamic_Library
 100      (Ofiles       : Argument_List;
 101       Foreign      : Argument_List;
 102       Afiles       : Argument_List;
 103       Options      : Argument_List;
 104       Options_2    : Argument_List;
 105       Interfaces   : Argument_List;
 106       Lib_Filename : String;
 107       Lib_Dir      : String;
 108       Symbol_Data  : Symbol_Record;
 109       Driver_Name  : Name_Id := No_Name;
 110       Lib_Version  : String  := "";
 111       Auto_Init    : Boolean := False)
 112    is
 113       pragma Unreferenced (Foreign);
 114       pragma Unreferenced (Afiles);
 115       pragma Unreferenced (Symbol_Data);
 116       pragma Unreferenced (Interfaces);
 117       pragma Unreferenced (Lib_Version);
 118       pragma Unreferenced (Auto_Init);
 119
 120       Lib_File : constant String :=
 121                    Lib_Dir & Directory_Separator &
 122                    Files.Ext_To (Lib_Filename, DLL_Ext);
 123
 124    --  Start of processing for Build_Dynamic_Library
 125
 126    begin
 127       if Opt.Verbose_Mode then
 128          Write_Str ("building relocatable shared library ");
 129          Write_Line (Lib_File);
 130       end if;
 131
 132       Tools.Gcc
 133         (Output_File => Lib_File,
 134          Objects     => Ofiles,
 135          Options     => No_Argument_List,
 136          Options_2   => Options & Options_2,
 137          Driver_Name => Driver_Name);
 138    end Build_Dynamic_Library;
 139
 140    -------------
 141    -- DLL_Ext --
 142    -------------
 143
 144    function DLL_Ext return String is
 145    begin
 146       return "dll";
 147    end DLL_Ext;
 148
 149    ----------------
 150    -- DLL_Prefix --
 151    ----------------
 152
 153    function DLL_Prefix return String is
 154    begin
 155       return "";
 156    end DLL_Prefix;
 157
 158    --------------------
 159    -- Dynamic_Option --
 160    --------------------
 161
 162    function Dynamic_Option return String is
 163    begin
 164       return "-shared";
 165    end Dynamic_Option;
 166
 167    -------------------
 168    -- Is_Object_Ext --
 169    -------------------
 170
 171    function Is_Object_Ext (Ext : String) return Boolean is
 172    begin
 173       return Ext = ".o";
 174    end Is_Object_Ext;
 175
 176    --------------
 177    -- Is_C_Ext --
 178    --------------
 179
 180    function Is_C_Ext (Ext : String) return Boolean is
 181    begin
 182       return Ext = ".c";
 183    end Is_C_Ext;
 184
 185    --------------------
 186    -- Is_Archive_Ext --
 187    --------------------
 188
 189    function Is_Archive_Ext (Ext : String) return Boolean is
 190    begin
 191       return Ext = ".a" or else Ext = ".dll";
 192    end Is_Archive_Ext;
 193
 194    -------------
 195    -- Libgnat --
 196    -------------
 197
 198    function Libgnat return String is
 199    begin
 200       return "libgnat.a";
 201    end Libgnat;
 202
 203    ------------------------
 204    -- Library_Exists_For --
 205    ------------------------
 206
 207    function Library_Exists_For
 208      (Project : Project_Id; In_Tree : Project_Tree_Ref) return Boolean is
 209    begin
 210       if not In_Tree.Projects.Table (Project).Library then
 211          Prj.Com.Fail ("INTERNAL ERROR: Library_Exists_For called " &
 212                        "for non library project");
 213          return False;
 214
 215       else
 216          declare
 217             Lib_Dir : constant String :=
 218               Get_Name_String
 219                 (In_Tree.Projects.Table (Project).Library_Dir);
 220             Lib_Name : constant String :=
 221               Get_Name_String
 222                 (In_Tree.Projects.Table (Project).Library_Name);
 223
 224          begin
 225             if In_Tree.Projects.Table (Project).Library_Kind =
 226               Static
 227             then
 228                return Is_Regular_File
 229                  (Lib_Dir & Directory_Separator & "lib" &
 230                   MLib.Fil.Ext_To (Lib_Name, Archive_Ext));
 231
 232             else
 233                return Is_Regular_File
 234                  (Lib_Dir & Directory_Separator &
 235                   MLib.Fil.Ext_To (Lib_Name, DLL_Ext));
 236             end if;
 237          end;
 238       end if;
 239    end Library_Exists_For;
 240
 241    ---------------------------
 242    -- Library_File_Name_For --
 243    ---------------------------
 244
 245    function Library_File_Name_For
 246      (Project : Project_Id;
 247       In_Tree : Project_Tree_Ref) return Name_Id is
 248    begin
 249       if not In_Tree.Projects.Table (Project).Library then
 250          Prj.Com.Fail ("INTERNAL ERROR: Library_File_Name_For called " &
 251                        "for non library project");
 252          return No_Name;
 253
 254       else
 255          declare
 256             Lib_Name : constant String :=
 257               Get_Name_String
 258                 (In_Tree.Projects.Table (Project).Library_Name);
 259
 260          begin
 261             if In_Tree.Projects.Table (Project).Library_Kind =
 262               Static
 263             then
 264                Name_Len := 3;
 265                Name_Buffer (1 .. Name_Len) := "lib";
 266                Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, Archive_Ext));
 267
 268             else
 269                Name_Len := 0;
 270                Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, DLL_Ext));
 271             end if;
 272
 273             return Name_Find;
 274          end;
 275       end if;
 276    end Library_File_Name_For;
 277
 278    ----------------
 279    -- Object_Ext --
 280    ----------------
 281
 282    function Object_Ext return String is
 283    begin
 284       return "o";
 285    end Object_Ext;
 286
 287    ----------------
 288    -- PIC_Option --
 289    ----------------
 290
 291    function PIC_Option return String is
 292    begin
 293       return "";
 294    end PIC_Option;
 295
 296    -----------------------------------------------
 297    -- Standalone_Library_Auto_Init_Is_Supported --
 298    -----------------------------------------------
 299
 300    function Standalone_Library_Auto_Init_Is_Supported return Boolean is
 301    begin
 302       return True;
 303    end Standalone_Library_Auto_Init_Is_Supported;
 304
 305    ---------------------------
 306    -- Support_For_Libraries --
 307    ---------------------------
 308
 309    function Support_For_Libraries return Library_Support is
 310    begin
 311       return Full;
 312    end Support_For_Libraries;
 313
 314 end MLib.Tgt;