gcc/ada/mlib-tgt-solaris.adb

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