1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
9 -- Copyright (C) 2001-2007, AdaCore --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 2, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
17 -- for more details. You should have received a copy of the GNU General --
18 -- Public License distributed with GNAT; see file COPYING. If not, write --
19 -- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
20 -- Boston, MA 02110-1301, USA. --
22 -- GNAT was originally developed by the GNAT team at New York University. --
23 -- Extensive contributions were provided by Ada Core Technologies Inc. --
25 ------------------------------------------------------------------------------
27 -- This package provides a set of target dependent routines to build
28 -- static, dynamic and shared libraries.
30 -- There are several versions for the body of this package
32 -- In the default version, libraries are not supported, so function
33 -- Support_For_Libraries return None.
39 function Support_For_Libraries return Library_Support;
40 -- Indicates how building libraries by gnatmake is supported by the GNAT
41 -- implementation for the platform.
43 function Standalone_Library_Auto_Init_Is_Supported return Boolean;
44 -- Indicates if when building a dynamic Standalone Library,
45 -- automatic initialization is supported. If it is, then it is the default,
46 -- unless attribute Library_Auto_Init has the value "false".
48 function Archive_Builder return String;
49 -- Returns the name of the archive builder program, usually "ar"
51 function Archive_Builder_Options return String_List_Access;
52 -- A list of options to invoke the Archive_Builder, usually "cr" for "ar"
54 function Archive_Builder_Append_Options return String_List_Access;
55 -- A list of options to use with the archive builder to append object
56 -- files ("q", for example).
58 function Archive_Indexer return String;
59 -- Returns the name of the program, if any, that generates an index to the
60 -- contents of an archive, usually "ranlib". If there is no archive indexer
61 -- to be used, returns an empty string.
63 function Archive_Indexer_Options return String_List_Access;
64 -- A list of options to invoke the Archive_Indexer, usually empty
66 function Dynamic_Option return String;
67 -- gcc option to create a dynamic library.
68 -- For Unix, returns "-shared", for Windows returns "-mdll".
70 function Libgnat return String;
71 -- System dependent static GNAT library
73 function Archive_Ext return String;
74 -- System dependent static library extension, without leading dot.
75 -- For Unix and Windows, return "a".
77 function Object_Ext return String;
78 -- System dependent object extension, without leading dot.
79 -- On Unix, returns "o".
81 function DLL_Prefix return String;
82 -- System dependent dynamic library prefix.
83 -- On Windows, returns "". On other platforms, returns "lib".
85 function DLL_Ext return String;
86 -- System dependent dynamic library extension, without leading dot.
87 -- On Windows, returns "dll". On Unix, usually returns "so", but not
88 -- always, e.g. on HP-UX the extension for shared libraries is "sl".
90 function PIC_Option return String;
91 -- Position independent code option
93 function Is_Object_Ext (Ext : String) return Boolean;
94 -- Returns True iff Ext is an object file extension
96 function Is_C_Ext (Ext : String) return Boolean;
97 -- Returns True iff Ext is a C file extension
99 function Is_Archive_Ext (Ext : String) return Boolean;
100 -- Returns True iff Ext is an extension for a library
102 function Default_Symbol_File_Name return String;
103 -- Returns the name of the symbol file when Library_Symbol_File is not
104 -- specified. Return the empty string when symbol files are not supported.
106 procedure Build_Dynamic_Library
107 (Ofiles : Argument_List;
108 Options : Argument_List;
109 Interfaces : Argument_List;
110 Lib_Filename : String;
112 Symbol_Data : Symbol_Record;
113 Driver_Name : Name_Id := No_Name;
114 Lib_Version : String := "";
115 Auto_Init : Boolean := False);
116 -- Build a dynamic/relocatable library
118 -- Ofiles is the list of all object files in the library
120 -- Options is a list of options to be passed to the tool
121 -- (gcc or other) that effectively builds the dynamic library.
123 -- Interfaces is the list of ALI files for the interfaces of a SAL.
124 -- It is empty if the library is not a SAL.
126 -- Lib_Filename is the name of the library, without any prefix or
127 -- extension. For example, on Unix, if Lib_Filename is "toto", the
128 -- name of the library file will be "libtoto.so".
130 -- Lib_Dir is the directory path where the library will be located
132 -- For OSes that support symbolic links, Lib_Version, if non null,
133 -- is the actual file name of the library. For example on Unix, if
134 -- Lib_Filename is "toto" and Lib_Version is "libtoto.so.2.1",
135 -- "libtoto.so" will be a symbolic link to "libtoto.so.2.1" which
136 -- will be the actual library file.
138 -- Symbol_Data is used for some patforms, including VMS, to generate
139 -- the symbols to be exported by the library.
141 -- Note: Depending on the OS, some of the parameters may not be taken into
142 -- account. For example, on Linux, Interfaces, Symbol_Data and Auto_Init
145 function Library_Exists_For
146 (Project : Project_Id; In_Tree : Project_Tree_Ref) return Boolean;
147 -- Return True if the library file for a library project already exists.
148 -- This function can only be called for library projects.
150 function Library_File_Name_For
151 (Project : Project_Id;
152 In_Tree : Project_Tree_Ref) return File_Name_Type;
153 -- Returns the file name of the library file of a library project.
154 -- This function can only be called for library projects.
156 function Library_Major_Minor_Id_Supported return Boolean;
157 -- Indicates if major and minor ids are supported for libraries.
158 -- If they are supported, then a Library_Version such as libtoto.so.1.2
159 -- will have a major id of 1 and a minor id of 2. Then litoto.so,
160 -- libtoto.so.1 and libtoto.so.1.2 will be created, all three designating
164 No_Argument_List : constant Argument_List := (1 .. 0 => null);
166 -- Access to subprogram types for indirection
168 type String_Function is access function return String;
169 type Is_Ext_Function is access function (Ext : String) return Boolean;
170 type String_List_Access_Function is access function
171 return String_List_Access;
172 type Build_Dynamic_Library_Function is access procedure
173 (Ofiles : Argument_List;
174 Options : Argument_List;
175 Interfaces : Argument_List;
176 Lib_Filename : String;
178 Symbol_Data : Symbol_Record;
179 Driver_Name : Name_Id := No_Name;
180 Lib_Version : String := "";
181 Auto_Init : Boolean := False);
182 type Library_Exists_For_Function is access function
183 (Project : Project_Id; In_Tree : Project_Tree_Ref) return Boolean;
184 type Library_File_Name_For_Function is access function
185 (Project : Project_Id;
186 In_Tree : Project_Tree_Ref) return File_Name_Type;
187 type Boolean_Function is access function return Boolean;
188 type Library_Support_Function is access function return Library_Support;
190 function Archive_Builder_Default return String;
191 Archive_Builder_Ptr : String_Function := Archive_Builder_Default'Access;
193 function Archive_Builder_Options_Default return String_List_Access;
194 Archive_Builder_Options_Ptr : String_List_Access_Function :=
195 Archive_Builder_Options_Default'Access;
197 function Archive_Builder_Append_Options_Default return String_List_Access;
198 Archive_Builder_Append_Options_Ptr : String_List_Access_Function :=
199 Archive_Builder_Append_Options_Default'Access;
201 function Archive_Ext_Default return String;
202 Archive_Ext_Ptr : String_Function := Archive_Ext_Default'Access;
204 function Archive_Indexer_Default return String;
205 Archive_Indexer_Ptr : String_Function := Archive_Indexer_Default'Access;
207 function Archive_Indexer_Options_Default return String_List_Access;
208 Archive_Indexer_Options_Ptr : String_List_Access_Function :=
209 Archive_Indexer_Options_Default'Access;
211 function Default_Symbol_File_Name_Default return String;
212 Default_Symbol_File_Name_Ptr : String_Function :=
213 Default_Symbol_File_Name_Default'Access;
215 Build_Dynamic_Library_Ptr : Build_Dynamic_Library_Function;
217 function DLL_Ext_Default return String;
218 DLL_Ext_Ptr : String_Function := DLL_Ext_Default'Access;
220 function DLL_Prefix_Default return String;
221 DLL_Prefix_Ptr : String_Function := DLL_Prefix_Default'Access;
223 function Dynamic_Option_Default return String;
224 Dynamic_Option_Ptr : String_Function := Dynamic_Option_Default'Access;
226 function Is_Object_Ext_Default (Ext : String) return Boolean;
227 Is_Object_Ext_Ptr : Is_Ext_Function := Is_Object_Ext_Default'Access;
229 function Is_C_Ext_Default (Ext : String) return Boolean;
230 Is_C_Ext_Ptr : Is_Ext_Function := Is_C_Ext_Default'Access;
232 function Is_Archive_Ext_Default (Ext : String) return Boolean;
233 Is_Archive_Ext_Ptr : Is_Ext_Function := Is_Archive_Ext_Default'Access;
235 function Libgnat_Default return String;
236 Libgnat_Ptr : String_Function := Libgnat_Default'Access;
238 function Library_Exists_For_Default
239 (Project : Project_Id; In_Tree : Project_Tree_Ref) return Boolean;
240 Library_Exists_For_Ptr : Library_Exists_For_Function :=
241 Library_Exists_For_Default'Access;
243 function Library_File_Name_For_Default
244 (Project : Project_Id;
245 In_Tree : Project_Tree_Ref) return File_Name_Type;
246 Library_File_Name_For_Ptr : Library_File_Name_For_Function :=
247 Library_File_Name_For_Default'Access;
249 function Object_Ext_Default return String;
250 Object_Ext_Ptr : String_Function := Object_Ext_Default'Access;
252 function PIC_Option_Default return String;
253 PIC_Option_Ptr : String_Function := PIC_Option_Default'Access;
255 function Standalone_Library_Auto_Init_Is_Supported_Default return Boolean;
256 Standalone_Library_Auto_Init_Is_Supported_Ptr : Boolean_Function :=
257 Standalone_Library_Auto_Init_Is_Supported_Default'Access;
259 function Support_For_Libraries_Default return Library_Support;
260 Support_For_Libraries_Ptr : Library_Support_Function :=
261 Support_For_Libraries_Default'Access;
263 function Library_Major_Minor_Id_Supported_Default return Boolean;
264 Library_Major_Minor_Id_Supported_Ptr : Boolean_Function :=
265 Library_Major_Minor_Id_Supported_Default'Access;