File : mlib-tgt-specific-linux.adb
1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT COMPILER COMPONENTS --
4 -- --
5 -- M L I B . T G T . S P E C I F I C --
6 -- (GNU/Linux Version) --
7 -- --
8 -- B o d y --
9 -- --
10 -- Copyright (C) 2001-2008, Free Software Foundation, 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 3, 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 COPYING3. If not, go to --
20 -- http://www.gnu.org/licenses for a complete copy of the license. --
21 -- --
22 -- GNAT was originally developed by the GNAT team at New York University. --
23 -- Extensive contributions were provided by Ada Core Technologies Inc. --
24 -- --
25 ------------------------------------------------------------------------------
26
27 -- This is the GNU/Linux version of the body
28
29 with MLib.Fil;
30 with MLib.Utl;
31 with Opt;
32 with Output; use Output;
33
34 package body MLib.Tgt.Specific is
35
36 use MLib;
37
38 -- Non default subprograms
39
40 procedure Build_Dynamic_Library
41 (Ofiles : Argument_List;
42 Options : Argument_List;
43 Interfaces : Argument_List;
44 Lib_Filename : String;
45 Lib_Dir : String;
46 Symbol_Data : Symbol_Record;
47 Driver_Name : Name_Id := No_Name;
48 Lib_Version : String := "";
49 Auto_Init : Boolean := False);
50
51 function Is_Archive_Ext (Ext : String) return Boolean;
52
53 ---------------------------
54 -- Build_Dynamic_Library --
55 ---------------------------
56
57 procedure Build_Dynamic_Library
58 (Ofiles : Argument_List;
59 Options : Argument_List;
60 Interfaces : Argument_List;
61 Lib_Filename : String;
62 Lib_Dir : String;
63 Symbol_Data : Symbol_Record;
64 Driver_Name : Name_Id := No_Name;
65 Lib_Version : String := "";
66 Auto_Init : Boolean := False)
67 is
68 pragma Unreferenced (Interfaces);
69 pragma Unreferenced (Symbol_Data);
70 pragma Unreferenced (Auto_Init);
71 -- Initialization is done through the constructor mechanism
72
73 Lib_File : constant String :=
74 "lib" & Fil.Append_To (Lib_Filename, DLL_Ext);
75
76 Lib_Path : constant String :=
77 Lib_Dir & Directory_Separator & Lib_File;
78
79 Version_Arg : String_Access;
80 Symbolic_Link_Needed : Boolean := False;
81
82 begin
83 if Opt.Verbose_Mode then
84 Write_Str ("building relocatable shared library ");
85 Write_Line (Lib_Path);
86 end if;
87
88 if Lib_Version = "" then
89 Utl.Gcc
90 (Output_File => Lib_Path,
91 Objects => Ofiles,
92 Options => Options,
93 Driver_Name => Driver_Name,
94 Options_2 => No_Argument_List);
95
96 else
97 declare
98 Maj_Version : constant String :=
99 Major_Id_Name (Lib_File, Lib_Version);
100 begin
101 if Maj_Version'Length /= 0 then
102 Version_Arg := new String'("-Wl,-soname," & Maj_Version);
103
104 else
105 Version_Arg := new String'("-Wl,-soname," & Lib_Version);
106 end if;
107
108 if Is_Absolute_Path (Lib_Version) then
109 Utl.Gcc
110 (Output_File => Lib_Version,
111 Objects => Ofiles,
112 Options => Options & Version_Arg,
113 Driver_Name => Driver_Name,
114 Options_2 => No_Argument_List);
115 Symbolic_Link_Needed := Lib_Version /= Lib_Path;
116
117 else
118 Utl.Gcc
119 (Output_File => Lib_Dir & Directory_Separator & Lib_Version,
120 Objects => Ofiles,
121 Options => Options & Version_Arg,
122 Driver_Name => Driver_Name,
123 Options_2 => No_Argument_List);
124 Symbolic_Link_Needed :=
125 Lib_Dir & Directory_Separator & Lib_Version /= Lib_Path;
126 end if;
127
128 if Symbolic_Link_Needed then
129 Create_Sym_Links
130 (Lib_Path, Lib_Version, Lib_Dir, Maj_Version);
131 end if;
132 end;
133 end if;
134 end Build_Dynamic_Library;
135
136 --------------------
137 -- Is_Archive_Ext --
138 --------------------
139
140 function Is_Archive_Ext (Ext : String) return Boolean is
141 begin
142 return Ext = ".a" or else Ext = ".so";
143 end Is_Archive_Ext;
144
145 begin
146 Build_Dynamic_Library_Ptr := Build_Dynamic_Library'Access;
147 Is_Archive_Ext_Ptr := Is_Archive_Ext'Access;
148 end MLib.Tgt.Specific;