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_Version : String := "";
112 Auto_Init : Boolean := False)
114 pragma Unreferenced (Foreign);
115 pragma Unreferenced (Afiles);
116 pragma Unreferenced (Interfaces);
117 pragma Unreferenced (Symbol_Data);
119 Lib_File : constant String :=
120 Lib_Dir & Directory_Separator & "lib" &
121 Fil.Ext_To (Lib_Filename, DLL_Ext);
123 Version_Arg : String_Access;
124 Symbolic_Link_Needed : Boolean := False;
126 Init_Fini : Argument_List_Access := Empty_Argument_List;
129 if Opt.Verbose_Mode then
130 Write_Str ("building relocatable shared library ");
131 Write_Line (Lib_File);
134 -- If specified, add automatic elaboration/finalization
137 Init_Fini := Init_Fini_List;
138 Init_Fini (2) := new String'("-Wl," & Lib_Filename & "init");
139 Init_Fini (4) := new String'("-Wl," & Lib_Filename & "final");
142 if Lib_Version = "" then
144 (Output_File => Lib_File,
146 Options => Options & Init_Fini.all,
147 Driver_Name => Driver_Name);
150 Version_Arg := new String'("-Wl,-soname," & Lib_Version);
152 if Is_Absolute_Path (Lib_Version) then
154 (Output_File => Lib_Version,
156 Options => Options & Version_Arg & Init_Fini.all,
157 Driver_Name => Driver_Name);
158 Symbolic_Link_Needed := Lib_Version /= Lib_File;
162 (Output_File => Lib_Dir & Directory_Separator & Lib_Version,
164 Options => Options & Version_Arg & Init_Fini.all,
165 Driver_Name => Driver_Name);
166 Symbolic_Link_Needed :=
167 Lib_Dir & Directory_Separator & Lib_Version /= Lib_File;
170 if Symbolic_Link_Needed then
173 Oldpath : String (1 .. Lib_Version'Length + 1);
174 Newpath : String (1 .. Lib_File'Length + 1);
177 pragma Unreferenced (Result);
180 (Oldpath : System.Address;
181 Newpath : System.Address) return Integer;
182 pragma Import (C, Symlink, "__gnat_symlink");
185 Oldpath (1 .. Lib_Version'Length) := Lib_Version;
186 Oldpath (Oldpath'Last) := ASCII.NUL;
187 Newpath (1 .. Lib_File'Length) := Lib_File;
188 Newpath (Newpath'Last) := ASCII.NUL;
190 Delete_File (Lib_File, Success);
192 Result := Symlink (Oldpath'Address, Newpath'Address);
196 end Build_Dynamic_Library;
202 function DLL_Ext return String is
211 function Dynamic_Option return String is
220 function Is_Object_Ext (Ext : String) return Boolean is
229 function Is_C_Ext (Ext : String) return Boolean is
238 function Is_Archive_Ext (Ext : String) return Boolean is
240 return Ext = ".a" or else Ext = ".so";
247 function Libgnat return String is
252 ------------------------
253 -- Library_Exists_For --
254 ------------------------
256 function Library_Exists_For (Project : Project_Id) return Boolean is
258 if not Projects.Table (Project).Library then
259 Prj.Com.Fail ("INTERNAL ERROR: Library_Exists_For called " &
260 "for non library project");
265 Lib_Dir : constant String :=
266 Get_Name_String (Projects.Table (Project).Library_Dir);
267 Lib_Name : constant String :=
268 Get_Name_String (Projects.Table (Project).Library_Name);
271 if Projects.Table (Project).Library_Kind = Static then
272 return Is_Regular_File
273 (Lib_Dir & Directory_Separator & "lib" &
274 Fil.Ext_To (Lib_Name, Archive_Ext));
277 return Is_Regular_File
278 (Lib_Dir & Directory_Separator & "lib" &
279 Fil.Ext_To (Lib_Name, DLL_Ext));
283 end Library_Exists_For;
285 ---------------------------
286 -- Library_File_Name_For --
287 ---------------------------
289 function Library_File_Name_For (Project : Project_Id) return Name_Id is
291 if not Projects.Table (Project).Library then
292 Prj.Com.Fail ("INTERNAL ERROR: Library_File_Name_For called " &
293 "for non library project");
298 Lib_Name : constant String :=
299 Get_Name_String (Projects.Table (Project).Library_Name);
303 Name_Buffer (1 .. Name_Len) := "lib";
305 if Projects.Table (Project).Library_Kind = Static then
306 Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, Archive_Ext));
309 Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, DLL_Ext));
315 end Library_File_Name_For;
321 function Object_Ext return String is
330 function PIC_Option return String is
335 -----------------------------------------------
336 -- Standalone_Library_Auto_Init_Is_Supported --
337 -----------------------------------------------
339 function Standalone_Library_Auto_Init_Is_Supported return Boolean is
342 end Standalone_Library_Auto_Init_Is_Supported;
344 ---------------------------
345 -- Support_For_Libraries --
346 ---------------------------
348 function Support_For_Libraries return Library_Support is
351 end Support_For_Libraries;