gcc/ada/5gml-tgt.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, 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_Address  : String  := "";
 109       Lib_Version  : String  := "";
 110       Relocatable  : Boolean := False;
 111       Auto_Init    : Boolean := False)
 112    is
 113       pragma Unreferenced (Foreign);
 114       pragma Unreferenced (Afiles);
 115       pragma Unreferenced (Interfaces);
 116       pragma Unreferenced (Symbol_Data);
 117       pragma Unreferenced (Lib_Address);
 118       pragma Unreferenced (Relocatable);
 119
 120       Lib_File : constant String :=
 121         Lib_Dir & Directory_Separator & "lib" &
 122         MLib.Fil.Ext_To (Lib_Filename, DLL_Ext);
 123
 124       Version_Arg          : String_Access;
 125       Symbolic_Link_Needed : Boolean := False;
 126
 127       Init_Fini : Argument_List_Access := Empty_Argument_List;
 128
 129    begin
 130       if Opt.Verbose_Mode then
 131          Write_Str ("building relocatable shared library ");
 132          Write_Line (Lib_File);
 133       end if;
 134
 135       --  If specified, add automatic elaboration/finalization
 136       if Auto_Init then
 137          Init_Fini := Init_Fini_List;
 138          Init_Fini (2) := new String'("-Wl," & Lib_Filename & "init");
 139          Init_Fini (4) := new String'("-Wl," & Lib_Filename & "final");
 140       end if;
 141
 142       if Lib_Version = "" then
 143          MLib.Utl.Gcc
 144            (Output_File => Lib_File,
 145             Objects     => Ofiles,
 146             Options     => Options & Init_Fini.all,
 147             Driver_Name => Driver_Name);
 148
 149       else
 150          Version_Arg := new String'("-Wl,-soname," & Lib_Version);
 151
 152          if Is_Absolute_Path (Lib_Version) then
 153             MLib.Utl.Gcc
 154               (Output_File => Lib_Version,
 155                Objects     => Ofiles,
 156                Options     => Options & Version_Arg & Init_Fini.all,
 157                Driver_Name => Driver_Name);
 158             Symbolic_Link_Needed := Lib_Version /= Lib_File;
 159
 160          else
 161             MLib.Utl.Gcc
 162               (Output_File => Lib_Dir & Directory_Separator & Lib_Version,
 163                Objects     => Ofiles,
 164                Options     => Options & Version_Arg & Init_Fini.all,
 165                Driver_Name => Driver_Name);
 166             Symbolic_Link_Needed :=
 167               Lib_Dir & Directory_Separator & Lib_Version /= Lib_File;
 168          end if;
 169
 170          if Symbolic_Link_Needed then
 171             declare
 172                Success : Boolean;
 173                Oldpath : String (1 .. Lib_Version'Length + 1);
 174                Newpath : String (1 .. Lib_File'Length + 1);
 175                Result  : Integer;
 176
 177                function Symlink
 178                  (Oldpath : System.Address;
 179                   Newpath : System.Address)
 180                   return    Integer;
 181                pragma Import (C, Symlink, "__gnat_symlink");
 182
 183             begin
 184                Oldpath (1 .. Lib_Version'Length) := Lib_Version;
 185                Oldpath (Oldpath'Last)            := ASCII.NUL;
 186                Newpath (1 .. Lib_File'Length)    := Lib_File;
 187                Newpath (Newpath'Last)            := ASCII.NUL;
 188
 189                Delete_File (Lib_File, Success);
 190
 191                Result := Symlink (Oldpath'Address, Newpath'Address);
 192             end;
 193          end if;
 194       end if;
 195    end Build_Dynamic_Library;
 196
 197    -------------------------
 198    -- Default_DLL_Address --
 199    -------------------------
 200
 201    function Default_DLL_Address return String is
 202    begin
 203       return "";
 204    end Default_DLL_Address;
 205
 206    -------------
 207    -- DLL_Ext --
 208    -------------
 209
 210    function DLL_Ext return String is
 211    begin
 212       return "so";
 213    end DLL_Ext;
 214
 215    --------------------
 216    -- Dynamic_Option --
 217    --------------------
 218
 219    function Dynamic_Option return String is
 220    begin
 221       return "-shared";
 222    end Dynamic_Option;
 223
 224    -------------------
 225    -- Is_Object_Ext --
 226    -------------------
 227
 228    function Is_Object_Ext (Ext : String) return Boolean is
 229    begin
 230       return Ext = ".o";
 231    end Is_Object_Ext;
 232
 233    --------------
 234    -- Is_C_Ext --
 235    --------------
 236
 237    function Is_C_Ext (Ext : String) return Boolean is
 238    begin
 239       return Ext = ".c";
 240    end Is_C_Ext;
 241
 242    --------------------
 243    -- Is_Archive_Ext --
 244    --------------------
 245
 246    function Is_Archive_Ext (Ext : String) return Boolean is
 247    begin
 248       return Ext = ".a" or else Ext = ".so";
 249    end Is_Archive_Ext;
 250
 251    -------------
 252    -- Libgnat --
 253    -------------
 254
 255    function Libgnat return String is
 256    begin
 257       return "libgnat.a";
 258    end Libgnat;
 259
 260    ------------------------
 261    -- Library_Exists_For --
 262    ------------------------
 263
 264    function Library_Exists_For (Project : Project_Id) return Boolean is
 265    begin
 266       if not Projects.Table (Project).Library then
 267          Prj.Com.Fail ("INTERNAL ERROR: Library_Exists_For called " &
 268                        "for non library project");
 269          return False;
 270
 271       else
 272          declare
 273             Lib_Dir : constant String :=
 274               Get_Name_String (Projects.Table (Project).Library_Dir);
 275             Lib_Name : constant String :=
 276               Get_Name_String (Projects.Table (Project).Library_Name);
 277
 278          begin
 279             if Projects.Table (Project).Library_Kind = Static then
 280                return Is_Regular_File
 281                  (Lib_Dir & Directory_Separator & "lib" &
 282                   Fil.Ext_To (Lib_Name, Archive_Ext));
 283
 284             else
 285                return Is_Regular_File
 286                  (Lib_Dir & Directory_Separator & "lib" &
 287                   Fil.Ext_To (Lib_Name, DLL_Ext));
 288             end if;
 289          end;
 290       end if;
 291    end Library_Exists_For;
 292
 293    ---------------------------
 294    -- Library_File_Name_For --
 295    ---------------------------
 296
 297    function Library_File_Name_For (Project : Project_Id) return Name_Id is
 298    begin
 299       if not Projects.Table (Project).Library then
 300          Prj.Com.Fail ("INTERNAL ERROR: Library_File_Name_For called " &
 301                        "for non library project");
 302          return No_Name;
 303
 304       else
 305          declare
 306             Lib_Name : constant String :=
 307               Get_Name_String (Projects.Table (Project).Library_Name);
 308
 309          begin
 310             Name_Len := 3;
 311             Name_Buffer (1 .. Name_Len) := "lib";
 312
 313             if Projects.Table (Project).Library_Kind = Static then
 314                Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, Archive_Ext));
 315
 316             else
 317                Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, DLL_Ext));
 318             end if;
 319
 320             return Name_Find;
 321          end;
 322       end if;
 323    end Library_File_Name_For;
 324
 325    --------------------------------
 326    -- Linker_Library_Path_Option --
 327    --------------------------------
 328
 329    function Linker_Library_Path_Option return String_Access is
 330    begin
 331       return new String'("-Wl,-rpath,");
 332    end Linker_Library_Path_Option;
 333
 334    ----------------
 335    -- Object_Ext --
 336    ----------------
 337
 338    function Object_Ext return String is
 339    begin
 340       return "o";
 341    end Object_Ext;
 342
 343    ----------------
 344    -- PIC_Option --
 345    ----------------
 346
 347    function PIC_Option return String is
 348    begin
 349       return "-fPIC";
 350    end PIC_Option;
 351
 352    -----------------------------------------------
 353    -- Standalone_Library_Auto_Init_Is_Supported --
 354    -----------------------------------------------
 355
 356    function Standalone_Library_Auto_Init_Is_Supported return Boolean is
 357    begin
 358       return True;
 359    end Standalone_Library_Auto_Init_Is_Supported;
 360
 361    ---------------------------
 362    -- Support_For_Libraries --
 363    ---------------------------
 364
 365    function Support_For_Libraries return Library_Support is
 366    begin
 367       return Full;
 368    end Support_For_Libraries;
 369
 370 end MLib.Tgt;