1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
6 -- (GNU/Linux Version) --
10 -- Copyright (C) 2001-2004, Free Software Foundation, Inc. --
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. --
23 -- GNAT was originally developed by the GNAT team at New York University. --
24 -- Extensive contributions were provided by Ada Core Technologies Inc. --
26 ------------------------------------------------------------------------------
28 -- This package provides a set of target dependent routines to build
29 -- static, dynamic and shared libraries.
31 -- This is the GNU/Linux version of the body.
35 with Namet; use Namet;
37 with Output; use Output;
41 package body MLib.Tgt is
46 No_Arguments : aliased Argument_List := (1 .. 0 => null);
47 Empty_Argument_List : constant Argument_List_Access := No_Arguments'Access;
49 Wl_Init_String : aliased String := "-Wl,-init";
50 Wl_Init : constant String_Access := Wl_Init_String'Access;
51 Wl_Fini_String : aliased String := "-Wl,-fini";
52 Wl_Fini : constant String_Access := Wl_Fini_String'Access;
54 Init_Fini_List : constant Argument_List_Access :=
55 new Argument_List'(1 => Wl_Init,
59 -- Used to put switches for automatic elaboration/finalization
65 function Archive_Builder return String is
70 -----------------------------
71 -- Archive_Builder_Options --
72 -----------------------------
74 function Archive_Builder_Options return String_List_Access is
76 return new String_List'(1 => new String'("cr"));
77 end Archive_Builder_Options;
83 function Archive_Ext return String is
92 function Archive_Indexer return String is
97 ---------------------------
98 -- Build_Dynamic_Library --
99 ---------------------------
101 procedure Build_Dynamic_Library
102 (Ofiles : Argument_List;
103 Foreign : Argument_List;
104 Afiles : Argument_List;
105 Options : Argument_List;
106 Options_2 : Argument_List;
107 Interfaces : Argument_List;
108 Lib_Filename : String;
110 Symbol_Data : Symbol_Record;
111 Driver_Name : Name_Id := No_Name;
112 Lib_Version : String := "";
113 Auto_Init : Boolean := False)
115 pragma Unreferenced (Foreign);
116 pragma Unreferenced (Afiles);
117 pragma Unreferenced (Interfaces);
118 pragma Unreferenced (Symbol_Data);
120 Lib_File : constant String :=
121 Lib_Dir & Directory_Separator & "lib" &
122 Fil.Ext_To (Lib_Filename, DLL_Ext);
124 Version_Arg : String_Access;
125 Symbolic_Link_Needed : Boolean := False;
127 Init_Fini : Argument_List_Access := Empty_Argument_List;
130 if Opt.Verbose_Mode then
131 Write_Str ("building relocatable shared library ");
132 Write_Line (Lib_File);
135 -- If specified, add automatic elaboration/finalization
138 Init_Fini := Init_Fini_List;
139 Init_Fini (2) := new String'("-Wl," & Lib_Filename & "init");
140 Init_Fini (4) := new String'("-Wl," & Lib_Filename & "final");
143 if Lib_Version = "" then
145 (Output_File => Lib_File,
147 Options => Options & Init_Fini.all,
148 Driver_Name => Driver_Name,
149 Options_2 => Options_2);
152 Version_Arg := new String'("-Wl,-soname," & Lib_Version);
154 if Is_Absolute_Path (Lib_Version) then
156 (Output_File => Lib_Version,
158 Options => Options & Version_Arg & Init_Fini.all,
159 Driver_Name => Driver_Name,
160 Options_2 => Options_2);
161 Symbolic_Link_Needed := Lib_Version /= Lib_File;
165 (Output_File => Lib_Dir & Directory_Separator & Lib_Version,
167 Options => Options & Version_Arg & Init_Fini.all,
168 Driver_Name => Driver_Name,
169 Options_2 => Options_2);
170 Symbolic_Link_Needed :=
171 Lib_Dir & Directory_Separator & Lib_Version /= Lib_File;
174 if Symbolic_Link_Needed then
177 Oldpath : String (1 .. Lib_Version'Length + 1);
178 Newpath : String (1 .. Lib_File'Length + 1);
181 pragma Unreferenced (Result);
184 (Oldpath : System.Address;
185 Newpath : System.Address) return Integer;
186 pragma Import (C, Symlink, "__gnat_symlink");
189 Oldpath (1 .. Lib_Version'Length) := Lib_Version;
190 Oldpath (Oldpath'Last) := ASCII.NUL;
191 Newpath (1 .. Lib_File'Length) := Lib_File;
192 Newpath (Newpath'Last) := ASCII.NUL;
194 Delete_File (Lib_File, Success);
196 Result := Symlink (Oldpath'Address, Newpath'Address);
200 end Build_Dynamic_Library;
206 function DLL_Ext return String is
215 function Dynamic_Option return String is
224 function Is_Object_Ext (Ext : String) return Boolean is
233 function Is_C_Ext (Ext : String) return Boolean is
242 function Is_Archive_Ext (Ext : String) return Boolean is
244 return Ext = ".a" or else Ext = ".so";
251 function Libgnat return String is
256 ------------------------
257 -- Library_Exists_For --
258 ------------------------
260 function Library_Exists_For (Project : Project_Id) return Boolean is
262 if not Projects.Table (Project).Library then
263 Prj.Com.Fail ("INTERNAL ERROR: Library_Exists_For called " &
264 "for non library project");
269 Lib_Dir : constant String :=
270 Get_Name_String (Projects.Table (Project).Library_Dir);
271 Lib_Name : constant String :=
272 Get_Name_String (Projects.Table (Project).Library_Name);
275 if Projects.Table (Project).Library_Kind = Static then
276 return Is_Regular_File
277 (Lib_Dir & Directory_Separator & "lib" &
278 Fil.Ext_To (Lib_Name, Archive_Ext));
281 return Is_Regular_File
282 (Lib_Dir & Directory_Separator & "lib" &
283 Fil.Ext_To (Lib_Name, DLL_Ext));
287 end Library_Exists_For;
289 ---------------------------
290 -- Library_File_Name_For --
291 ---------------------------
293 function Library_File_Name_For (Project : Project_Id) return Name_Id is
295 if not Projects.Table (Project).Library then
296 Prj.Com.Fail ("INTERNAL ERROR: Library_File_Name_For called " &
297 "for non library project");
302 Lib_Name : constant String :=
303 Get_Name_String (Projects.Table (Project).Library_Name);
307 Name_Buffer (1 .. Name_Len) := "lib";
309 if Projects.Table (Project).Library_Kind = Static then
310 Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, Archive_Ext));
313 Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, DLL_Ext));
319 end Library_File_Name_For;
325 function Object_Ext return String is
334 function PIC_Option return String is
339 -----------------------------------------------
340 -- Standalone_Library_Auto_Init_Is_Supported --
341 -----------------------------------------------
343 function Standalone_Library_Auto_Init_Is_Supported return Boolean is
346 end Standalone_Library_Auto_Init_Is_Supported;
348 ---------------------------
349 -- Support_For_Libraries --
350 ---------------------------
352 function Support_For_Libraries return Library_Support is
355 end Support_For_Libraries;