gcc/ada/mlib-tgt-hpux.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                             M L I B . T G T                              --
   6 --                             (HP-UX Version)                              --
   7 --                                                                          --
   8 --                                 B o d y                                  --
   9 --                                                                          --
  10 --           Copyright (C) 2003-2005, 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,  51  Franklin  Street,  Fifth  Floor, --
  21 -- Boston, MA 02110-1301, 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 --  libraries (static only on HP-UX).
  30
  31 --  This is the HP-UX 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    ---------------------
  44    -- Archive_Builder --
  45    ---------------------
  46
  47    function Archive_Builder return String is
  48    begin
  49       return "ar";
  50    end Archive_Builder;
  51
  52    -----------------------------
  53    -- Archive_Builder_Options --
  54    -----------------------------
  55
  56    function Archive_Builder_Options return String_List_Access is
  57    begin
  58       return new String_List'(1 => new String'("cr"));
  59    end Archive_Builder_Options;
  60
  61    -----------------
  62    -- Archive_Ext --
  63    -----------------
  64
  65    function Archive_Ext return String is
  66    begin
  67       return "a";
  68    end Archive_Ext;
  69
  70    ---------------------
  71    -- Archive_Indexer --
  72    ---------------------
  73
  74    function Archive_Indexer return String is
  75    begin
  76       return "ranlib";
  77    end Archive_Indexer;
  78
  79    -----------------------------
  80    -- Archive_Indexer_Options --
  81    -----------------------------
  82
  83    function Archive_Indexer_Options return String_List_Access is
  84    begin
  85       return new String_List (1 .. 0);
  86    end Archive_Indexer_Options;
  87
  88    ---------------------------
  89    -- Build_Dynamic_Library --
  90    ---------------------------
  91
  92    procedure Build_Dynamic_Library
  93      (Ofiles       : Argument_List;
  94       Foreign      : Argument_List;
  95       Afiles       : Argument_List;
  96       Options      : Argument_List;
  97       Options_2    : Argument_List;
  98       Interfaces   : Argument_List;
  99       Lib_Filename : String;
 100       Lib_Dir      : String;
 101       Symbol_Data  : Symbol_Record;
 102       Driver_Name  : Name_Id := No_Name;
 103       Lib_Version  : String  := "";
 104       Auto_Init    : Boolean := False)
 105    is
 106       pragma Unreferenced (Foreign);
 107       pragma Unreferenced (Afiles);
 108       pragma Unreferenced (Interfaces);
 109       pragma Unreferenced (Symbol_Data);
 110       pragma Unreferenced (Auto_Init);
 111
 112       Lib_File : constant String :=
 113                    Lib_Dir & Directory_Separator & "lib" &
 114                    MLib.Fil.Ext_To (Lib_Filename, DLL_Ext);
 115
 116       Version_Arg          : String_Access;
 117       Symbolic_Link_Needed : Boolean := False;
 118
 119       Common_Options : constant Argument_List :=
 120                          Options & new String'(PIC_Option);
 121       --  Common set of options to the gcc command performing the link.
 122       --  On HPUX, this command eventually resorts to collect2, which may
 123       --  generate a C file and compile it on the fly. This compilation shall
 124       --  also generate position independant code for the final link to
 125       --  succeed.
 126    begin
 127       if Opt.Verbose_Mode then
 128          Write_Str ("building relocatable shared library ");
 129          Write_Line (Lib_File);
 130       end if;
 131
 132       if Lib_Version = "" then
 133          MLib.Utl.Gcc
 134            (Output_File => Lib_File,
 135             Objects     => Ofiles,
 136             Options     => Common_Options,
 137             Options_2   => Options_2,
 138             Driver_Name => Driver_Name);
 139
 140       else
 141          Version_Arg := new String'("-Wl,+h," & Lib_Version);
 142
 143          if Is_Absolute_Path (Lib_Version) then
 144             MLib.Utl.Gcc
 145               (Output_File => Lib_Version,
 146                Objects     => Ofiles,
 147                Options     => Common_Options & Version_Arg,
 148                Options_2   => Options_2,
 149                Driver_Name => Driver_Name);
 150             Symbolic_Link_Needed := Lib_Version /= Lib_File;
 151
 152          else
 153             MLib.Utl.Gcc
 154               (Output_File => Lib_Dir & Directory_Separator & Lib_Version,
 155                Objects     => Ofiles,
 156                Options     => Common_Options & Version_Arg,
 157                Options_2   => Options_2,
 158                Driver_Name => Driver_Name);
 159             Symbolic_Link_Needed :=
 160               Lib_Dir & Directory_Separator & Lib_Version /= Lib_File;
 161          end if;
 162
 163          if Symbolic_Link_Needed then
 164             declare
 165                Success : Boolean;
 166                Oldpath : String (1 .. Lib_Version'Length + 1);
 167                Newpath : String (1 .. Lib_File'Length + 1);
 168
 169                Result : Integer;
 170                pragma Unreferenced (Result);
 171
 172                function Symlink
 173                  (Oldpath : System.Address;
 174                   Newpath : System.Address) return Integer;
 175                pragma Import (C, Symlink, "__gnat_symlink");
 176
 177             begin
 178                Oldpath (1 .. Lib_Version'Length) := Lib_Version;
 179                Oldpath (Oldpath'Last)            := ASCII.NUL;
 180                Newpath (1 .. Lib_File'Length)    := Lib_File;
 181                Newpath (Newpath'Last)            := ASCII.NUL;
 182
 183                Delete_File (Lib_File, Success);
 184
 185                Result := Symlink (Oldpath'Address, Newpath'Address);
 186             end;
 187          end if;
 188       end if;
 189    end Build_Dynamic_Library;
 190
 191    -------------
 192    -- DLL_Ext --
 193    -------------
 194
 195    function DLL_Ext return String is
 196    begin
 197       return "sl";
 198    end DLL_Ext;
 199
 200    --------------------
 201    -- Dynamic_Option --
 202    --------------------
 203
 204    function Dynamic_Option return String is
 205    begin
 206       return "-shared";
 207    end Dynamic_Option;
 208
 209    -------------------
 210    -- Is_Object_Ext --
 211    -------------------
 212
 213    function Is_Object_Ext (Ext : String) return Boolean is
 214    begin
 215       return Ext = ".o";
 216    end Is_Object_Ext;
 217
 218    --------------
 219    -- Is_C_Ext --
 220    --------------
 221
 222    function Is_C_Ext (Ext : String) return Boolean is
 223    begin
 224       return Ext = ".c";
 225    end Is_C_Ext;
 226
 227    --------------------
 228    -- Is_Archive_Ext --
 229    --------------------
 230
 231    function Is_Archive_Ext (Ext : String) return Boolean is
 232    begin
 233       return Ext = ".a" or else Ext = ".so";
 234    end Is_Archive_Ext;
 235
 236    -------------
 237    -- Libgnat --
 238    -------------
 239
 240    function Libgnat return String is
 241    begin
 242       return "libgnat.a";
 243    end Libgnat;
 244
 245    ------------------------
 246    -- Library_Exists_For --
 247    ------------------------
 248
 249    function Library_Exists_For
 250      (Project : Project_Id; In_Tree : Project_Tree_Ref) return Boolean
 251    is
 252    begin
 253       if not In_Tree.Projects.Table (Project).Library then
 254          Prj.Com.Fail ("INTERNAL ERROR: Library_Exists_For called " &
 255                        "for non library project");
 256          return False;
 257
 258       else
 259          declare
 260             Lib_Dir : constant String :=
 261               Get_Name_String
 262                 (In_Tree.Projects.Table (Project).Library_Dir);
 263             Lib_Name : constant String :=
 264               Get_Name_String
 265                 (In_Tree.Projects.Table (Project).Library_Name);
 266
 267          begin
 268             if In_Tree.Projects.Table (Project).Library_Kind =
 269               Static
 270             then
 271                return Is_Regular_File
 272                  (Lib_Dir & Directory_Separator & "lib" &
 273                   Fil.Ext_To (Lib_Name, Archive_Ext));
 274
 275             else
 276                return Is_Regular_File
 277                  (Lib_Dir & Directory_Separator & "lib" &
 278                   Fil.Ext_To (Lib_Name, DLL_Ext));
 279             end if;
 280          end;
 281       end if;
 282    end Library_Exists_For;
 283
 284    ---------------------------
 285    -- Library_File_Name_For --
 286    ---------------------------
 287
 288    function Library_File_Name_For
 289      (Project : Project_Id;
 290       In_Tree : Project_Tree_Ref) return Name_Id
 291    is
 292    begin
 293       if not In_Tree.Projects.Table (Project).Library then
 294          Prj.Com.Fail ("INTERNAL ERROR: Library_File_Name_For called " &
 295                        "for non library project");
 296          return No_Name;
 297
 298       else
 299          declare
 300             Lib_Name : constant String :=
 301               Get_Name_String
 302                 (In_Tree.Projects.Table (Project).Library_Name);
 303
 304          begin
 305             Name_Len := 3;
 306             Name_Buffer (1 .. Name_Len) := "lib";
 307
 308             if In_Tree.Projects.Table (Project).Library_Kind =
 309               Static
 310             then
 311                Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, Archive_Ext));
 312
 313             else
 314                Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, DLL_Ext));
 315             end if;
 316
 317             return Name_Find;
 318          end;
 319       end if;
 320    end Library_File_Name_For;
 321
 322    ----------------
 323    -- Object_Ext --
 324    ----------------
 325
 326    function Object_Ext return String is
 327    begin
 328       return "o";
 329    end Object_Ext;
 330
 331    ----------------
 332    -- PIC_Option --
 333    ----------------
 334
 335    function PIC_Option return String is
 336    begin
 337       return "-fPIC";
 338    end PIC_Option;
 339
 340    -----------------------------------------------
 341    -- Standalone_Library_Auto_Init_Is_Supported --
 342    -----------------------------------------------
 343
 344    function Standalone_Library_Auto_Init_Is_Supported return Boolean is
 345    begin
 346       return True;
 347    end Standalone_Library_Auto_Init_Is_Supported;
 348
 349    ---------------------------
 350    -- Support_For_Libraries --
 351    ---------------------------
 352
 353    function Support_For_Libraries return Library_Support is
 354    begin
 355       return Full;
 356    end Support_For_Libraries;
 357
 358 end MLib.Tgt;