gcc/ada/mlib-tgt-irix.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                             M L I B . T G T                              --
   6 --                              (IRIX Version)                              --
   7 --                                                                          --
   8 --                                 B o d y                                  --
   9 --                                                                          --
  10 --           Copyright (C) 2003-2004, Ada Core Technologies, 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 IRIX 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    No_Arguments        : aliased Argument_List         := (1 .. 0 => null);
  44    Empty_Argument_List : constant Argument_List_Access := No_Arguments'Access;
  45
  46    Wl_Init_String : aliased String         := "-Wl,-init";
  47    Wl_Init        : constant String_Access := Wl_Init_String'Access;
  48    Wl_Fini_String : aliased String         := "-Wl,-fini";
  49    Wl_Fini        : constant String_Access := Wl_Fini_String'Access;
  50
  51    Init_Fini_List :  constant Argument_List_Access :=
  52                        new Argument_List'(1 => Wl_Init,
  53                                           2 => null,
  54                                           3 => Wl_Fini,
  55                                           4 => null);
  56    --  Used to put switches for automatic elaboration/finalization
  57
  58    ---------------------
  59    -- Archive_Builder --
  60    ---------------------
  61
  62    function Archive_Builder return String is
  63    begin
  64       return "ar";
  65    end Archive_Builder;
  66
  67    -----------------------------
  68    -- Archive_Builder_Options --
  69    -----------------------------
  70
  71    function Archive_Builder_Options return String_List_Access is
  72    begin
  73       return new String_List'(1 => new String'("cr"));
  74    end Archive_Builder_Options;
  75
  76    -----------------
  77    -- Archive_Ext --
  78    -----------------
  79
  80    function Archive_Ext return String is
  81    begin
  82       return "a";
  83    end Archive_Ext;
  84
  85    ---------------------
  86    -- Archive_Indexer --
  87    ---------------------
  88
  89    function Archive_Indexer return String is
  90    begin
  91       return "ranlib";
  92    end Archive_Indexer;
  93
  94    ---------------------------
  95    -- Build_Dynamic_Library --
  96    ---------------------------
  97
  98    procedure Build_Dynamic_Library
  99      (Ofiles       : Argument_List;
 100       Foreign      : Argument_List;
 101       Afiles       : Argument_List;
 102       Options      : Argument_List;
 103       Interfaces   : Argument_List;
 104       Lib_Filename : String;
 105       Lib_Dir      : String;
 106       Symbol_Data  : Symbol_Record;
 107       Driver_Name  : Name_Id := No_Name;
 108       Lib_Version  : String  := "";
 109       Auto_Init    : Boolean := False)
 110    is
 111       pragma Unreferenced (Foreign);
 112       pragma Unreferenced (Afiles);
 113       pragma Unreferenced (Interfaces);
 114       pragma Unreferenced (Symbol_Data);
 115
 116       Lib_File : constant String :=
 117                    Lib_Dir & Directory_Separator & "lib" &
 118                    MLib.Fil.Ext_To (Lib_Filename, DLL_Ext);
 119
 120       Version_Arg          : String_Access;
 121       Symbolic_Link_Needed : Boolean := False;
 122
 123       Init_Fini : Argument_List_Access := Empty_Argument_List;
 124
 125       N_Options    : Argument_List := Options;
 126       Options_Last : Natural := N_Options'Last;
 127       --  After moving -lxxx to Options_2, N_Options up to index Options_Last
 128       --  will contain the Options to pass to MLib.Utl.Gcc.
 129
 130       Options_2      : Argument_List (Options'Range);
 131       Options_2_Last : Natural := Options_2'First - 1;
 132       --  Options_2 up to index Options_2_Last will contain the Options_2 to
 133       --  pass to MLib.Utl.Gcc.
 134
 135    begin
 136       if Opt.Verbose_Mode then
 137          Write_Str ("building relocatable shared library ");
 138          Write_Line (Lib_File);
 139       end if;
 140
 141       --  If specified, add automatic elaboration/finalization
 142
 143       if Auto_Init then
 144          Init_Fini := Init_Fini_List;
 145          Init_Fini (2) := new String'("-Wl," & Lib_Filename & "init");
 146          Init_Fini (4) := new String'("-Wl," & Lib_Filename & "final");
 147       end if;
 148
 149       --  Move all -lxxx to Options_2
 150
 151       declare
 152          Index : Natural := N_Options'First;
 153          Arg   : String_Access;
 154
 155       begin
 156          while Index <= Options_Last loop
 157             Arg := N_Options (Index);
 158
 159             if Arg'Length > 2
 160               and then Arg (Arg'First .. Arg'First + 1) = "-l"
 161             then
 162                Options_2_Last := Options_2_Last + 1;
 163                Options_2 (Options_2_Last) := Arg;
 164                N_Options (Index .. Options_Last - 1) :=
 165                  N_Options (Index + 1 .. Options_Last);
 166                Options_Last := Options_Last - 1;
 167
 168             else
 169                Index := Index + 1;
 170             end if;
 171          end loop;
 172       end;
 173
 174       if Lib_Version = "" then
 175          MLib.Utl.Gcc
 176            (Output_File => Lib_File,
 177             Objects     => Ofiles,
 178             Options     => N_Options (N_Options'First .. Options_Last) &
 179                            Init_Fini.all,
 180             Driver_Name => Driver_Name,
 181             Options_2   => Options_2 (Options_2'First .. Options_2_Last));
 182
 183       else
 184          Version_Arg := new String'("-Wl,-soname," & Lib_Version);
 185
 186          if Is_Absolute_Path (Lib_Version) then
 187             MLib.Utl.Gcc
 188               (Output_File => Lib_Version,
 189                Objects     => Ofiles,
 190                Options     => N_Options (N_Options'First .. Options_Last) &
 191                               Version_Arg & Init_Fini.all,
 192                Driver_Name => Driver_Name,
 193                Options_2   => Options_2 (Options_2'First .. Options_2_Last));
 194             Symbolic_Link_Needed := Lib_Version /= Lib_File;
 195
 196          else
 197             MLib.Utl.Gcc
 198               (Output_File => Lib_Dir & Directory_Separator & Lib_Version,
 199                Objects     => Ofiles,
 200                Options     => N_Options (N_Options'First .. Options_Last) &
 201                               Version_Arg & Init_Fini.all,
 202                Driver_Name => Driver_Name,
 203                Options_2   => Options_2 (Options_2'First .. Options_2_Last));
 204             Symbolic_Link_Needed :=
 205               Lib_Dir & Directory_Separator & Lib_Version /= Lib_File;
 206          end if;
 207
 208          if Symbolic_Link_Needed then
 209             declare
 210                Success : Boolean;
 211                Oldpath : String (1 .. Lib_Version'Length + 1);
 212                Newpath : String (1 .. Lib_File'Length + 1);
 213
 214                Result : Integer;
 215                pragma Unreferenced (Result);
 216
 217                function Symlink
 218                  (Oldpath : System.Address;
 219                   Newpath : System.Address)
 220                   return    Integer;
 221                pragma Import (C, Symlink, "__gnat_symlink");
 222
 223             begin
 224                Oldpath (1 .. Lib_Version'Length) := Lib_Version;
 225                Oldpath (Oldpath'Last)            := ASCII.NUL;
 226                Newpath (1 .. Lib_File'Length)    := Lib_File;
 227                Newpath (Newpath'Last)            := ASCII.NUL;
 228
 229                Delete_File (Lib_File, Success);
 230
 231                Result := Symlink (Oldpath'Address, Newpath'Address);
 232             end;
 233          end if;
 234       end if;
 235    end Build_Dynamic_Library;
 236
 237    -------------
 238    -- DLL_Ext --
 239    -------------
 240
 241    function DLL_Ext return String is
 242    begin
 243       return "so";
 244    end DLL_Ext;
 245
 246    --------------------
 247    -- Dynamic_Option --
 248    --------------------
 249
 250    function Dynamic_Option return String is
 251    begin
 252       return "-shared";
 253    end Dynamic_Option;
 254
 255    -------------------
 256    -- Is_Object_Ext --
 257    -------------------
 258
 259    function Is_Object_Ext (Ext : String) return Boolean is
 260    begin
 261       return Ext = ".o";
 262    end Is_Object_Ext;
 263
 264    --------------
 265    -- Is_C_Ext --
 266    --------------
 267
 268    function Is_C_Ext (Ext : String) return Boolean is
 269    begin
 270       return Ext = ".c";
 271    end Is_C_Ext;
 272
 273    --------------------
 274    -- Is_Archive_Ext --
 275    --------------------
 276
 277    function Is_Archive_Ext (Ext : String) return Boolean is
 278    begin
 279       return Ext = ".a" or else Ext = ".so";
 280    end Is_Archive_Ext;
 281
 282    -------------
 283    -- Libgnat --
 284    -------------
 285
 286    function Libgnat return String is
 287    begin
 288       return "libgnat.a";
 289    end Libgnat;
 290
 291    ------------------------
 292    -- Library_Exists_For --
 293    ------------------------
 294
 295    function Library_Exists_For (Project : Project_Id) return Boolean is
 296    begin
 297       if not Projects.Table (Project).Library then
 298          Prj.Com.Fail ("INTERNAL ERROR: Library_Exists_For called " &
 299                        "for non library project");
 300          return False;
 301
 302       else
 303          declare
 304             Lib_Dir : constant String :=
 305               Get_Name_String (Projects.Table (Project).Library_Dir);
 306             Lib_Name : constant String :=
 307               Get_Name_String (Projects.Table (Project).Library_Name);
 308
 309          begin
 310             if Projects.Table (Project).Library_Kind = Static then
 311                return Is_Regular_File
 312                  (Lib_Dir & Directory_Separator & "lib" &
 313                   Fil.Ext_To (Lib_Name, Archive_Ext));
 314
 315             else
 316                return Is_Regular_File
 317                  (Lib_Dir & Directory_Separator & "lib" &
 318                   Fil.Ext_To (Lib_Name, DLL_Ext));
 319             end if;
 320          end;
 321       end if;
 322    end Library_Exists_For;
 323
 324    ---------------------------
 325    -- Library_File_Name_For --
 326    ---------------------------
 327
 328    function Library_File_Name_For (Project : Project_Id) return Name_Id is
 329    begin
 330       if not Projects.Table (Project).Library then
 331          Prj.Com.Fail ("INTERNAL ERROR: Library_File_Name_For called " &
 332                        "for non library project");
 333          return No_Name;
 334
 335       else
 336          declare
 337             Lib_Name : constant String :=
 338               Get_Name_String (Projects.Table (Project).Library_Name);
 339
 340          begin
 341             Name_Len := 3;
 342             Name_Buffer (1 .. Name_Len) := "lib";
 343
 344             if Projects.Table (Project).Library_Kind = Static then
 345                Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, Archive_Ext));
 346
 347             else
 348                Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, DLL_Ext));
 349             end if;
 350
 351             return Name_Find;
 352          end;
 353       end if;
 354    end Library_File_Name_For;
 355
 356    ----------------
 357    -- Object_Ext --
 358    ----------------
 359
 360    function Object_Ext return String is
 361    begin
 362       return "o";
 363    end Object_Ext;
 364
 365    ----------------
 366    -- PIC_Option --
 367    ----------------
 368
 369    function PIC_Option return String is
 370    begin
 371       return "-fPIC";
 372    end PIC_Option;
 373
 374    -----------------------------------------------
 375    -- Standalone_Library_Auto_Init_Is_Supported --
 376    -----------------------------------------------
 377
 378    function Standalone_Library_Auto_Init_Is_Supported return Boolean is
 379    begin
 380       return True;
 381    end Standalone_Library_Auto_Init_Is_Supported;
 382
 383    ---------------------------
 384    -- Support_For_Libraries --
 385    ---------------------------
 386
 387    function Support_For_Libraries return Library_Support is
 388    begin
 389       return Full;
 390    end Support_For_Libraries;
 391
 392 end MLib.Tgt;