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 Interfaces : Argument_List;
107 Lib_Filename : String;
109 Symbol_Data : Symbol_Record;
110 Driver_Name : Name_Id := No_Name;
111 Lib_Address : String := "";
112 Lib_Version : String := "";
113 Relocatable : Boolean := False;
114 Auto_Init : Boolean := False)
116 pragma Unreferenced (Foreign);
117 pragma Unreferenced (Afiles);
118 pragma Unreferenced (Interfaces);
119 pragma Unreferenced (Symbol_Data);
120 pragma Unreferenced (Lib_Address);
121 pragma Unreferenced (Relocatable);
123 Lib_File : constant String :=
124 Lib_Dir & Directory_Separator & "lib" &
125 Fil.Ext_To (Lib_Filename, DLL_Ext);
127 Version_Arg : String_Access;
128 Symbolic_Link_Needed : Boolean := False;
130 Init_Fini : Argument_List_Access := Empty_Argument_List;
133 if Opt.Verbose_Mode then
134 Write_Str ("building relocatable shared library ");
135 Write_Line (Lib_File);
138 -- If specified, add automatic elaboration/finalization
140 Init_Fini := Init_Fini_List;
141 Init_Fini (2) := new String'("-Wl," & Lib_Filename & "init");
142 Init_Fini (4) := new String'("-Wl," & Lib_Filename & "final");
145 if Lib_Version = "" then
147 (Output_File => Lib_File,
149 Options => Options & Init_Fini.all,
150 Driver_Name => Driver_Name);
153 Version_Arg := new String'("-Wl,-soname," & Lib_Version);
155 if Is_Absolute_Path (Lib_Version) then
157 (Output_File => Lib_Version,
159 Options => Options & Version_Arg & Init_Fini.all,
160 Driver_Name => Driver_Name);
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 Symbolic_Link_Needed :=
170 Lib_Dir & Directory_Separator & Lib_Version /= Lib_File;
173 if Symbolic_Link_Needed then
176 Oldpath : String (1 .. Lib_Version'Length + 1);
177 Newpath : String (1 .. Lib_File'Length + 1);
180 pragma Unreferenced (Result);
183 (Oldpath : System.Address;
184 Newpath : System.Address) return Integer;
185 pragma Import (C, Symlink, "__gnat_symlink");
188 Oldpath (1 .. Lib_Version'Length) := Lib_Version;
189 Oldpath (Oldpath'Last) := ASCII.NUL;
190 Newpath (1 .. Lib_File'Length) := Lib_File;
191 Newpath (Newpath'Last) := ASCII.NUL;
193 Delete_File (Lib_File, Success);
195 Result := Symlink (Oldpath'Address, Newpath'Address);
199 end Build_Dynamic_Library;
201 -------------------------
202 -- Default_DLL_Address --
203 -------------------------
205 function Default_DLL_Address return String is
208 end Default_DLL_Address;
214 function DLL_Ext return String is
223 function Dynamic_Option return String is
232 function Is_Object_Ext (Ext : String) return Boolean is
241 function Is_C_Ext (Ext : String) return Boolean is
250 function Is_Archive_Ext (Ext : String) return Boolean is
252 return Ext = ".a" or else Ext = ".so";
259 function Libgnat return String is
264 ------------------------
265 -- Library_Exists_For --
266 ------------------------
268 function Library_Exists_For (Project : Project_Id) return Boolean is
270 if not Projects.Table (Project).Library then
271 Prj.Com.Fail ("INTERNAL ERROR: Library_Exists_For called " &
272 "for non library project");
277 Lib_Dir : constant String :=
278 Get_Name_String (Projects.Table (Project).Library_Dir);
279 Lib_Name : constant String :=
280 Get_Name_String (Projects.Table (Project).Library_Name);
283 if Projects.Table (Project).Library_Kind = Static then
284 return Is_Regular_File
285 (Lib_Dir & Directory_Separator & "lib" &
286 Fil.Ext_To (Lib_Name, Archive_Ext));
289 return Is_Regular_File
290 (Lib_Dir & Directory_Separator & "lib" &
291 Fil.Ext_To (Lib_Name, DLL_Ext));
295 end Library_Exists_For;
297 ---------------------------
298 -- Library_File_Name_For --
299 ---------------------------
301 function Library_File_Name_For (Project : Project_Id) return Name_Id is
303 if not Projects.Table (Project).Library then
304 Prj.Com.Fail ("INTERNAL ERROR: Library_File_Name_For called " &
305 "for non library project");
310 Lib_Name : constant String :=
311 Get_Name_String (Projects.Table (Project).Library_Name);
315 Name_Buffer (1 .. Name_Len) := "lib";
317 if Projects.Table (Project).Library_Kind = Static then
318 Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, Archive_Ext));
321 Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, DLL_Ext));
327 end Library_File_Name_For;
333 function Object_Ext return String is
342 function PIC_Option return String is
347 -----------------------------------------------
348 -- Standalone_Library_Auto_Init_Is_Supported --
349 -----------------------------------------------
351 function Standalone_Library_Auto_Init_Is_Supported return Boolean is
354 end Standalone_Library_Auto_Init_Is_Supported;
356 ---------------------------
357 -- Support_For_Libraries --
358 ---------------------------
360 function Support_For_Libraries return Library_Support is
363 end Support_For_Libraries;