gcc/ada/mlib-tgt-aix.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                             M L I B . T G T                              --
   6 --                              (AIX 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 or relocatable libraries.
  30
  31 --  This is the AIX version of the body.
  32
  33 with Ada.Strings.Fixed; use Ada.Strings.Fixed;
  34 with GNAT.OS_Lib;       use GNAT.OS_Lib;
  35
  36 with MLib.Fil;
  37 with MLib.Utl;
  38 with Namet;    use Namet;
  39 with Osint;    use Osint;
  40 with Opt;
  41 with Output;   use Output;
  42 with Prj.Com;
  43 with Prj.Util; use Prj.Util;
  44
  45 package body MLib.Tgt is
  46
  47    No_Arguments        : aliased Argument_List         := (1 .. 0 => null);
  48    Empty_Argument_List : constant Argument_List_Access := No_Arguments'Access;
  49
  50    Wl_Initfini_String  : constant String := "-Wl,-binitfini:";
  51
  52    Init_Fini_List      :  constant Argument_List_Access :=
  53                             new Argument_List'(1 => null);
  54    --  Used to put switch for automatic elaboration/finalization
  55
  56    Bexpall : aliased String := "-Wl,-bexpall";
  57    Bexpall_Option : constant String_Access := Bexpall'Access;
  58    --  The switch to export all symbols
  59
  60    Lpthreads : aliased String := "-lpthreads";
  61    Native_Thread_Options : aliased Argument_List := (1 => Lpthreads'Access);
  62    --  The switch to use when linking a library against libgnarl when using
  63    --  Native threads.
  64
  65    Lgthreads : aliased String := "-lgthreads";
  66    Lmalloc   : aliased String := "-lmalloc";
  67    FSU_Thread_Options : aliased Argument_List :=
  68                           (1 => Lgthreads'Access, 2 => Lmalloc'Access);
  69    --  The switches to use when linking a library against libgnarl when using
  70    --  FSU threads.
  71
  72    Thread_Options : Argument_List_Access := null;
  73    --  Designate the thread switches to used when linking a library against
  74    --  libgnarl. Depends on the thread library (Native or FSU). Resolved for
  75    --  the first library linked against libgnarl.
  76
  77    ---------------------
  78    -- Archive_Builder --
  79    ---------------------
  80
  81    function Archive_Builder return String is
  82    begin
  83       return "ar";
  84    end Archive_Builder;
  85
  86    -----------------------------
  87    -- Archive_Builder_Options --
  88    -----------------------------
  89
  90    function Archive_Builder_Options return String_List_Access is
  91    begin
  92       return new String_List'(1 => new String'("cr"));
  93    end Archive_Builder_Options;
  94
  95    -----------------
  96    -- Archive_Ext --
  97    -----------------
  98
  99    function Archive_Ext return String is
 100    begin
 101       return "a";
 102    end Archive_Ext;
 103
 104    ---------------------
 105    -- Archive_Indexer --
 106    ---------------------
 107
 108    function Archive_Indexer return String is
 109    begin
 110       return "ranlib";
 111    end Archive_Indexer;
 112
 113    ---------------------------
 114    -- Build_Dynamic_Library --
 115    ---------------------------
 116
 117    procedure Build_Dynamic_Library
 118      (Ofiles       : Argument_List;
 119       Foreign      : Argument_List;
 120       Afiles       : Argument_List;
 121       Options      : Argument_List;
 122       Interfaces   : Argument_List;
 123       Lib_Filename : String;
 124       Lib_Dir      : String;
 125       Symbol_Data  : Symbol_Record;
 126       Driver_Name  : Name_Id := No_Name;
 127       Lib_Version  : String  := "";
 128       Auto_Init    : Boolean := False)
 129    is
 130       pragma Unreferenced (Foreign);
 131       pragma Unreferenced (Afiles);
 132       pragma Unreferenced (Interfaces);
 133       pragma Unreferenced (Symbol_Data);
 134       pragma Unreferenced (Lib_Version);
 135
 136       Lib_File : constant String :=
 137                    Lib_Dir & Directory_Separator & "lib" &
 138                    MLib.Fil.Ext_To (Lib_Filename, DLL_Ext);
 139       --  The file name of the library
 140
 141       Init_Fini : Argument_List_Access := Empty_Argument_List;
 142       --  The switch for automatic initialization of Stand-Alone Libraries.
 143       --  Changed to a real switch when Auto_Init is True.
 144
 145       Options_2 : Argument_List_Access := Empty_Argument_List;
 146       --  Changed to the thread options, if -lgnarl is specified
 147
 148    begin
 149       if Opt.Verbose_Mode then
 150          Write_Str ("building relocatable shared library ");
 151          Write_Line (Lib_File);
 152       end if;
 153
 154       --  If specified, add automatic elaboration/finalization
 155
 156       if Auto_Init then
 157          Init_Fini := Init_Fini_List;
 158          Init_Fini (1) :=
 159            new String'(Wl_Initfini_String & Lib_Filename & "init:" &
 160                        Lib_Filename & "final");
 161       end if;
 162
 163       --  Look for -lgnarl in Options. If found, set the thread options.
 164
 165       for J in Options'Range loop
 166          if Options (J).all = "-lgnarl" then
 167
 168             --  If Thread_Options is null, read s-osinte.ads to discover the
 169             --  thread library and set Thread_Options accordingly.
 170
 171             if Thread_Options = null then
 172                declare
 173                   File : Text_File;
 174                   Line : String (1 .. 100);
 175                   Last : Natural;
 176
 177                begin
 178                   Open
 179                     (File, Include_Dir_Default_Prefix & "/s-osinte.ads");
 180
 181                   while not End_Of_File (File) loop
 182                      Get_Line (File, Line, Last);
 183
 184                      if Index (Line (1 .. Last), "-lpthreads") /= 0 then
 185                         Thread_Options := Native_Thread_Options'Access;
 186                         exit;
 187
 188                      elsif Index (Line (1 .. Last), "-lgthreads") /= 0 then
 189                         Thread_Options := FSU_Thread_Options'Access;
 190                         exit;
 191                      end if;
 192                   end loop;
 193
 194                   Close (File);
 195
 196                   if Thread_Options = null then
 197                      Prj.Com.Fail ("cannot find the thread library in use");
 198                   end if;
 199
 200                exception
 201                   when others =>
 202                      Prj.Com.Fail ("cannot open s-osinte.ads");
 203                end;
 204             end if;
 205
 206             Options_2 := Thread_Options;
 207             exit;
 208          end if;
 209       end loop;
 210
 211       --  Finally, call GCC (or the driver specified) to build the library
 212
 213       MLib.Utl.Gcc
 214            (Output_File => Lib_File,
 215             Objects     => Ofiles,
 216             Options     => Options & Bexpall_Option & Init_Fini.all,
 217             Driver_Name => Driver_Name,
 218             Options_2   => Options_2.all);
 219    end Build_Dynamic_Library;
 220
 221    -------------
 222    -- DLL_Ext --
 223    -------------
 224
 225    function DLL_Ext return String is
 226    begin
 227       return "a";
 228    end DLL_Ext;
 229
 230    --------------------
 231    -- Dynamic_Option --
 232    --------------------
 233
 234    function Dynamic_Option return String is
 235    begin
 236       return "-shared";
 237    end Dynamic_Option;
 238
 239    -------------------
 240    -- Is_Object_Ext --
 241    -------------------
 242
 243    function Is_Object_Ext (Ext : String) return Boolean is
 244    begin
 245       return Ext = ".o";
 246    end Is_Object_Ext;
 247
 248    --------------
 249    -- Is_C_Ext --
 250    --------------
 251
 252    function Is_C_Ext (Ext : String) return Boolean is
 253    begin
 254       return Ext = ".c";
 255    end Is_C_Ext;
 256
 257    --------------------
 258    -- Is_Archive_Ext --
 259    --------------------
 260
 261    function Is_Archive_Ext (Ext : String) return Boolean is
 262    begin
 263       return Ext = ".a";
 264    end Is_Archive_Ext;
 265
 266    -------------
 267    -- Libgnat --
 268    -------------
 269
 270    function Libgnat return String is
 271    begin
 272       return "libgnat.a";
 273    end Libgnat;
 274
 275    ------------------------
 276    -- Library_Exists_For --
 277    ------------------------
 278
 279    function Library_Exists_For (Project : Project_Id) return Boolean is
 280    begin
 281       if not Projects.Table (Project).Library then
 282          Prj.Com.Fail ("INTERNAL ERROR: Library_Exists_For called " &
 283                        "for non library project");
 284          return False;
 285
 286       else
 287          declare
 288             Lib_Dir  : constant String :=
 289                          Get_Name_String
 290                            (Projects.Table (Project).Library_Dir);
 291             Lib_Name : constant String :=
 292                          Get_Name_String
 293                            (Projects.Table (Project).Library_Name);
 294
 295          begin
 296             if Projects.Table (Project).Library_Kind = Static then
 297                return Is_Regular_File
 298                  (Lib_Dir & Directory_Separator & "lib" &
 299                   Fil.Ext_To (Lib_Name, Archive_Ext));
 300
 301             else
 302                return Is_Regular_File
 303                  (Lib_Dir & Directory_Separator & "lib" &
 304                   Fil.Ext_To (Lib_Name, DLL_Ext));
 305             end if;
 306          end;
 307       end if;
 308    end Library_Exists_For;
 309
 310    ---------------------------
 311    -- Library_File_Name_For --
 312    ---------------------------
 313
 314    function Library_File_Name_For (Project : Project_Id) return Name_Id is
 315    begin
 316       if not Projects.Table (Project).Library then
 317          Prj.Com.Fail ("INTERNAL ERROR: Library_File_Name_For called " &
 318                        "for non library project");
 319          return No_Name;
 320
 321       else
 322          declare
 323             Lib_Name : constant String :=
 324               Get_Name_String (Projects.Table (Project).Library_Name);
 325
 326          begin
 327             Name_Len := 3;
 328             Name_Buffer (1 .. Name_Len) := "lib";
 329
 330             if Projects.Table (Project).Library_Kind = Static then
 331                Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, Archive_Ext));
 332
 333             else
 334                Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, DLL_Ext));
 335             end if;
 336
 337             return Name_Find;
 338          end;
 339       end if;
 340    end Library_File_Name_For;
 341
 342    ----------------
 343    -- Object_Ext --
 344    ----------------
 345
 346    function Object_Ext return String is
 347    begin
 348       return "o";
 349    end Object_Ext;
 350
 351    ----------------
 352    -- PIC_Option --
 353    ----------------
 354
 355    function PIC_Option return String is
 356    begin
 357       return "-fPIC";
 358    end PIC_Option;
 359
 360    -----------------------------------------------
 361    -- Standalone_Library_Auto_Init_Is_Supported --
 362    -----------------------------------------------
 363
 364    function Standalone_Library_Auto_Init_Is_Supported return Boolean is
 365    begin
 366       return True;
 367    end Standalone_Library_Auto_Init_Is_Supported;
 368
 369    ---------------------------
 370    -- Support_For_Libraries --
 371    ---------------------------
 372
 373    function Support_For_Libraries return Library_Support is
 374    begin
 375       return Full;
 376    end Support_For_Libraries;
 377
 378 end MLib.Tgt;