gcc/ada/mlib-tgt-tru64.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                             M L I B . T G T                              --
   6 --                             (True64 Version)                             --
   7 --                                                                          --
   8 --                                 B o d y                                  --
   9 --                                                                          --
  10 --              Copyright (C) 2002-2004 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,  59 Temple Place - Suite 330,  Boston, --
  21 -- MA 02111-1307, 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 True64 version of the body.
  32
  33 with MLib.Fil;
  34 with MLib.Utl;
  35 with Namet;  use Namet;
  36 with Opt;
  37 with Output; use Output;
  38 with Prj.Com;
  39 with System;
  40
  41 package body MLib.Tgt is
  42
  43    use GNAT;
  44    use MLib;
  45
  46    Expect_Unresolved : aliased String := "-Wl,-expect_unresolved,*";
  47
  48    No_Arguments        : aliased Argument_List         := (1 .. 0 => null);
  49    Empty_Argument_List : constant Argument_List_Access := No_Arguments'Access;
  50
  51    Wl_Init_String : aliased String         := "-Wl,-init";
  52    Wl_Init        : constant String_Access := Wl_Init_String'Access;
  53    Wl_Fini_String : aliased String         := "-Wl,-fini";
  54    Wl_Fini        : constant String_Access := Wl_Fini_String'Access;
  55
  56    Init_Fini_List :  constant Argument_List_Access :=
  57                        new Argument_List'(1 => Wl_Init,
  58                                           2 => null,
  59                                           3 => Wl_Fini,
  60                                           4 => null);
  61    --  Used to put switches for automatic elaboration/finalization
  62
  63    ---------------------
  64    -- Archive_Builder --
  65    ---------------------
  66
  67    function Archive_Builder return String is
  68    begin
  69       return "ar";
  70    end Archive_Builder;
  71
  72    -----------------------------
  73    -- Archive_Builder_Options --
  74    -----------------------------
  75
  76    function Archive_Builder_Options return String_List_Access is
  77    begin
  78       return new String_List'(1 => new String'("cr"));
  79    end Archive_Builder_Options;
  80
  81    -----------------
  82    -- Archive_Ext --
  83    -----------------
  84
  85    function Archive_Ext return  String is
  86    begin
  87       return "a";
  88    end Archive_Ext;
  89
  90    ---------------------
  91    -- Archive_Indexer --
  92    ---------------------
  93
  94    function Archive_Indexer return String is
  95    begin
  96       return "ranlib";
  97    end Archive_Indexer;
  98
  99    -----------------------------
 100    -- Archive_Indexer_Options --
 101    -----------------------------
 102
 103    function Archive_Indexer_Options return String_List_Access is
 104    begin
 105       return new String_List (1 .. 0);
 106    end Archive_Indexer_Options;
 107
 108    ---------------------------
 109    -- Build_Dynamic_Library --
 110    ---------------------------
 111
 112    procedure Build_Dynamic_Library
 113      (Ofiles       : Argument_List;
 114       Foreign      : Argument_List;
 115       Afiles       : Argument_List;
 116       Options      : Argument_List;
 117       Options_2    : Argument_List;
 118       Interfaces   : Argument_List;
 119       Lib_Filename : String;
 120       Lib_Dir      : String;
 121       Symbol_Data  : Symbol_Record;
 122       Driver_Name  : Name_Id := No_Name;
 123       Lib_Version  : String  := "";
 124       Auto_Init    : Boolean := False)
 125    is
 126       pragma Unreferenced (Foreign);
 127       pragma Unreferenced (Afiles);
 128       pragma Unreferenced (Interfaces);
 129       pragma Unreferenced (Symbol_Data);
 130
 131       Lib_File : constant String :=
 132                    Lib_Dir & Directory_Separator & "lib" &
 133                    Fil.Ext_To (Lib_Filename, DLL_Ext);
 134
 135       Version_Arg          : String_Access;
 136       Symbolic_Link_Needed : Boolean := False;
 137
 138       Init_Fini : Argument_List_Access := Empty_Argument_List;
 139
 140    begin
 141       if Opt.Verbose_Mode then
 142          Write_Str ("building relocatable shared library ");
 143          Write_Line (Lib_File);
 144       end if;
 145
 146       --  If specified, add automatic elaboration/finalization
 147
 148       if Auto_Init then
 149          Init_Fini := Init_Fini_List;
 150          Init_Fini (2) := new String'("-Wl," & Lib_Filename & "init");
 151          Init_Fini (4) := new String'("-Wl," & Lib_Filename & "final");
 152       end if;
 153
 154       if Lib_Version = "" then
 155          Utl.Gcc
 156            (Output_File => Lib_File,
 157             Objects     => Ofiles,
 158             Options     =>
 159               Options &
 160               Expect_Unresolved'Access &
 161               Init_Fini.all,
 162             Options_2   => Options_2,
 163             Driver_Name => Driver_Name);
 164
 165       else
 166          Version_Arg := new String'("-Wl,-soname," & Lib_Version);
 167
 168          if Is_Absolute_Path (Lib_Version) then
 169             Utl.Gcc
 170               (Output_File => Lib_Version,
 171                Objects     => Ofiles,
 172                Options     =>
 173                  Options &
 174                  Version_Arg &
 175                  Expect_Unresolved'Access &
 176                  Init_Fini.all,
 177                Options_2   => Options_2,
 178                Driver_Name => Driver_Name);
 179             Symbolic_Link_Needed := Lib_Version /= Lib_File;
 180
 181          else
 182             Utl.Gcc
 183               (Output_File => Lib_Dir & Directory_Separator & Lib_Version,
 184                Objects     => Ofiles,
 185                Options     =>
 186                  Options &
 187                  Version_Arg &
 188                  Expect_Unresolved'Access &
 189                  Init_Fini.all,
 190                Options_2   => Options_2,
 191                Driver_Name => Driver_Name);
 192             Symbolic_Link_Needed :=
 193               Lib_Dir & Directory_Separator & Lib_Version /= Lib_File;
 194          end if;
 195
 196          if Symbolic_Link_Needed then
 197             declare
 198                Success : Boolean;
 199                Oldpath : String (1 .. Lib_Version'Length + 1);
 200                Newpath : String (1 .. Lib_File'Length + 1);
 201
 202                Result : Integer;
 203                pragma Unreferenced (Result);
 204
 205                function Symlink
 206                  (Oldpath : System.Address;
 207                   Newpath : System.Address)
 208                   return    Integer;
 209                pragma Import (C, Symlink, "__gnat_symlink");
 210
 211             begin
 212                Oldpath (1 .. Lib_Version'Length) := Lib_Version;
 213                Oldpath (Oldpath'Last)            := ASCII.NUL;
 214                Newpath (1 .. Lib_File'Length)    := Lib_File;
 215                Newpath (Newpath'Last)            := ASCII.NUL;
 216
 217                Delete_File (Lib_File, Success);
 218
 219                Result := Symlink (Oldpath'Address, Newpath'Address);
 220             end;
 221          end if;
 222       end if;
 223    end Build_Dynamic_Library;
 224
 225    -------------
 226    -- DLL_Ext --
 227    -------------
 228
 229    function DLL_Ext return String is
 230    begin
 231       return "so";
 232    end DLL_Ext;
 233
 234    --------------------
 235    -- Dynamic_Option --
 236    --------------------
 237
 238    function Dynamic_Option return String is
 239    begin
 240       return "-shared";
 241    end Dynamic_Option;
 242
 243    -------------------
 244    -- Is_Object_Ext --
 245    -------------------
 246
 247    function Is_Object_Ext (Ext : String) return Boolean is
 248    begin
 249       return Ext = ".o";
 250    end Is_Object_Ext;
 251
 252    --------------
 253    -- Is_C_Ext --
 254    --------------
 255
 256    function Is_C_Ext (Ext : String) return Boolean is
 257    begin
 258       return Ext = ".c";
 259    end Is_C_Ext;
 260
 261    --------------------
 262    -- Is_Archive_Ext --
 263    --------------------
 264
 265    function Is_Archive_Ext (Ext : String) return Boolean is
 266    begin
 267       return Ext = ".a" or else Ext = ".so";
 268    end Is_Archive_Ext;
 269
 270    -------------
 271    -- Libgnat --
 272    -------------
 273
 274    function Libgnat return String is
 275    begin
 276       return "libgnat.a";
 277    end Libgnat;
 278
 279    ------------------------
 280    -- Library_Exists_For --
 281    ------------------------
 282
 283    function Library_Exists_For (Project : Project_Id) return Boolean is
 284    begin
 285       if not Projects.Table (Project).Library then
 286          Prj.Com.Fail ("INTERNAL ERROR: Library_Exists_For called " &
 287                        "for non library project");
 288          return False;
 289
 290       else
 291          declare
 292             Lib_Dir : constant String :=
 293               Get_Name_String (Projects.Table (Project).Library_Dir);
 294             Lib_Name : constant String :=
 295               Get_Name_String (Projects.Table (Project).Library_Name);
 296
 297          begin
 298             if Projects.Table (Project).Library_Kind = Static then
 299                return Is_Regular_File
 300                  (Lib_Dir & Directory_Separator & "lib" &
 301                   Fil.Ext_To (Lib_Name, Archive_Ext));
 302
 303             else
 304                return Is_Regular_File
 305                  (Lib_Dir & Directory_Separator & "lib" &
 306                   Fil.Ext_To (Lib_Name, DLL_Ext));
 307             end if;
 308          end;
 309       end if;
 310    end Library_Exists_For;
 311
 312    ---------------------------
 313    -- Library_File_Name_For --
 314    ---------------------------
 315
 316    function Library_File_Name_For (Project : Project_Id) return Name_Id is
 317    begin
 318       if not Projects.Table (Project).Library then
 319          Prj.Com.Fail ("INTERNAL ERROR: Library_File_Name_For called " &
 320                        "for non library project");
 321          return No_Name;
 322
 323       else
 324          declare
 325             Lib_Name : constant String :=
 326               Get_Name_String (Projects.Table (Project).Library_Name);
 327
 328          begin
 329             Name_Len := 3;
 330             Name_Buffer (1 .. Name_Len) := "lib";
 331
 332             if Projects.Table (Project).Library_Kind = Static then
 333                Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, Archive_Ext));
 334
 335             else
 336                Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, DLL_Ext));
 337             end if;
 338
 339             return Name_Find;
 340          end;
 341       end if;
 342    end Library_File_Name_For;
 343
 344    ----------------
 345    -- Object_Ext --
 346    ----------------
 347
 348    function Object_Ext return String is
 349    begin
 350       return "o";
 351    end Object_Ext;
 352
 353    ----------------
 354    -- PIC_Option --
 355    ----------------
 356
 357    function PIC_Option return String is
 358    begin
 359       return "";
 360    end PIC_Option;
 361
 362    -----------------------------------------------
 363    -- Standalone_Library_Auto_Init_Is_Supported --
 364    -----------------------------------------------
 365
 366    function Standalone_Library_Auto_Init_Is_Supported return Boolean is
 367    begin
 368       return True;
 369    end Standalone_Library_Auto_Init_Is_Supported;
 370
 371    ---------------------------
 372    -- Support_For_Libraries --
 373    ---------------------------
 374
 375    function Support_For_Libraries return Library_Support is
 376    begin
 377       return Full;
 378    end Support_For_Libraries;
 379
 380 end MLib.Tgt;