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 := Empty_Argument_List;
  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    -- Archive_Indexer_Options --
 115    -----------------------------
 116
 117    function Archive_Indexer_Options return String_List_Access is
 118    begin
 119       return new String_List (1 .. 0);
 120    end Archive_Indexer_Options;
 121
 122    ---------------------------
 123    -- Build_Dynamic_Library --
 124    ---------------------------
 125
 126    procedure Build_Dynamic_Library
 127      (Ofiles       : Argument_List;
 128       Foreign      : Argument_List;
 129       Afiles       : Argument_List;
 130       Options      : Argument_List;
 131       Options_2    : Argument_List;
 132       Interfaces   : Argument_List;
 133       Lib_Filename : String;
 134       Lib_Dir      : String;
 135       Symbol_Data  : Symbol_Record;
 136       Driver_Name  : Name_Id := No_Name;
 137       Lib_Version  : String  := "";
 138       Auto_Init    : Boolean := False)
 139    is
 140       pragma Unreferenced (Foreign);
 141       pragma Unreferenced (Afiles);
 142       pragma Unreferenced (Interfaces);
 143       pragma Unreferenced (Symbol_Data);
 144       pragma Unreferenced (Lib_Version);
 145
 146       Lib_File : constant String :=
 147                    Lib_Dir & Directory_Separator & "lib" &
 148                    MLib.Fil.Ext_To (Lib_Filename, DLL_Ext);
 149       --  The file name of the library
 150
 151       Init_Fini : Argument_List_Access := Empty_Argument_List;
 152       --  The switch for automatic initialization of Stand-Alone Libraries.
 153       --  Changed to a real switch when Auto_Init is True.
 154
 155       Thread_Opts : Argument_List_Access := Empty_Argument_List;
 156       --  Set to Thread_Options if -lgnarl is found in the Options
 157
 158    begin
 159       if Opt.Verbose_Mode then
 160          Write_Str ("building relocatable shared library ");
 161          Write_Line (Lib_File);
 162       end if;
 163
 164       --  If specified, add automatic elaboration/finalization
 165
 166       if Auto_Init then
 167          Init_Fini := Init_Fini_List;
 168          Init_Fini (1) :=
 169            new String'(Wl_Initfini_String & Lib_Filename & "init:" &
 170                        Lib_Filename & "final");
 171       end if;
 172
 173       --  Look for -lgnarl in Options. If found, set the thread options.
 174
 175       for J in Options'Range loop
 176          if Options (J).all = "-lgnarl" then
 177
 178             --  If Thread_Options is null, read s-osinte.ads to discover the
 179             --  thread library and set Thread_Options accordingly.
 180
 181             if Thread_Options = null then
 182                declare
 183                   File : Text_File;
 184                   Line : String (1 .. 100);
 185                   Last : Natural;
 186
 187                begin
 188                   Open
 189                     (File, Include_Dir_Default_Prefix & "/s-osinte.ads");
 190
 191                   while not End_Of_File (File) loop
 192                      Get_Line (File, Line, Last);
 193
 194                      if Index (Line (1 .. Last), "-lpthreads") /= 0 then
 195                         Thread_Options := Native_Thread_Options'Access;
 196                         exit;
 197
 198                      elsif Index (Line (1 .. Last), "-lgthreads") /= 0 then
 199                         Thread_Options := FSU_Thread_Options'Access;
 200                         exit;
 201                      end if;
 202                   end loop;
 203
 204                   Close (File);
 205
 206                   if Thread_Options = null then
 207                      Prj.Com.Fail ("cannot find the thread library in use");
 208                   end if;
 209
 210                exception
 211                   when others =>
 212                      Prj.Com.Fail ("cannot open s-osinte.ads");
 213                end;
 214             end if;
 215
 216             Thread_Opts := Thread_Options;
 217             exit;
 218          end if;
 219       end loop;
 220
 221       --  Finally, call GCC (or the driver specified) to build the library
 222
 223       MLib.Utl.Gcc
 224         (Output_File => Lib_File,
 225          Objects     => Ofiles,
 226          Options     => Options & Bexpall_Option & Init_Fini.all,
 227          Driver_Name => Driver_Name,
 228          Options_2   => Options_2 & Thread_Opts.all);
 229    end Build_Dynamic_Library;
 230
 231    -------------
 232    -- DLL_Ext --
 233    -------------
 234
 235    function DLL_Ext return String is
 236    begin
 237       return "a";
 238    end DLL_Ext;
 239
 240    --------------------
 241    -- Dynamic_Option --
 242    --------------------
 243
 244    function Dynamic_Option return String is
 245    begin
 246       return "-shared";
 247    end Dynamic_Option;
 248
 249    -------------------
 250    -- Is_Object_Ext --
 251    -------------------
 252
 253    function Is_Object_Ext (Ext : String) return Boolean is
 254    begin
 255       return Ext = ".o";
 256    end Is_Object_Ext;
 257
 258    --------------
 259    -- Is_C_Ext --
 260    --------------
 261
 262    function Is_C_Ext (Ext : String) return Boolean is
 263    begin
 264       return Ext = ".c";
 265    end Is_C_Ext;
 266
 267    --------------------
 268    -- Is_Archive_Ext --
 269    --------------------
 270
 271    function Is_Archive_Ext (Ext : String) return Boolean is
 272    begin
 273       return Ext = ".a";
 274    end Is_Archive_Ext;
 275
 276    -------------
 277    -- Libgnat --
 278    -------------
 279
 280    function Libgnat return String is
 281    begin
 282       return "libgnat.a";
 283    end Libgnat;
 284
 285    ------------------------
 286    -- Library_Exists_For --
 287    ------------------------
 288
 289    function Library_Exists_For (Project : Project_Id) return Boolean is
 290    begin
 291       if not Projects.Table (Project).Library then
 292          Prj.Com.Fail ("INTERNAL ERROR: Library_Exists_For called " &
 293                        "for non library project");
 294          return False;
 295
 296       else
 297          declare
 298             Lib_Dir  : constant String :=
 299                          Get_Name_String
 300                            (Projects.Table (Project).Library_Dir);
 301             Lib_Name : constant String :=
 302                          Get_Name_String
 303                            (Projects.Table (Project).Library_Name);
 304
 305          begin
 306             if Projects.Table (Project).Library_Kind = Static then
 307                return Is_Regular_File
 308                  (Lib_Dir & Directory_Separator & "lib" &
 309                   Fil.Ext_To (Lib_Name, Archive_Ext));
 310
 311             else
 312                return Is_Regular_File
 313                  (Lib_Dir & Directory_Separator & "lib" &
 314                   Fil.Ext_To (Lib_Name, DLL_Ext));
 315             end if;
 316          end;
 317       end if;
 318    end Library_Exists_For;
 319
 320    ---------------------------
 321    -- Library_File_Name_For --
 322    ---------------------------
 323
 324    function Library_File_Name_For (Project : Project_Id) return Name_Id is
 325    begin
 326       if not Projects.Table (Project).Library then
 327          Prj.Com.Fail ("INTERNAL ERROR: Library_File_Name_For called " &
 328                        "for non library project");
 329          return No_Name;
 330
 331       else
 332          declare
 333             Lib_Name : constant String :=
 334               Get_Name_String (Projects.Table (Project).Library_Name);
 335
 336          begin
 337             Name_Len := 3;
 338             Name_Buffer (1 .. Name_Len) := "lib";
 339
 340             if Projects.Table (Project).Library_Kind = Static then
 341                Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, Archive_Ext));
 342
 343             else
 344                Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, DLL_Ext));
 345             end if;
 346
 347             return Name_Find;
 348          end;
 349       end if;
 350    end Library_File_Name_For;
 351
 352    ----------------
 353    -- Object_Ext --
 354    ----------------
 355
 356    function Object_Ext return String is
 357    begin
 358       return "o";
 359    end Object_Ext;
 360
 361    ----------------
 362    -- PIC_Option --
 363    ----------------
 364
 365    function PIC_Option return String is
 366    begin
 367       return "-fPIC";
 368    end PIC_Option;
 369
 370    -----------------------------------------------
 371    -- Standalone_Library_Auto_Init_Is_Supported --
 372    -----------------------------------------------
 373
 374    function Standalone_Library_Auto_Init_Is_Supported return Boolean is
 375    begin
 376       return True;
 377    end Standalone_Library_Auto_Init_Is_Supported;
 378
 379    ---------------------------
 380    -- Support_For_Libraries --
 381    ---------------------------
 382
 383    function Support_For_Libraries return Library_Support is
 384    begin
 385       return Full;
 386    end Support_For_Libraries;
 387
 388 end MLib.Tgt;