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------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- M L I B . T G T --
-- --
-- S p e c --
-- --
-- Copyright (C) 2001-2008, AdaCore --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 3, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNAT; see file COPYING3. If not, go to --
-- http://www.gnu.org/licenses for a complete copy of the license. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-- This package provides a set of target dependent routines to build static,
-- dynamic and shared libraries. There are several packages providing
-- the actual routines. This package calls them indirectly by means of
-- access-to-subprogram values. Each target-dependent package initializes
-- these values in its elaboration block.
with Prj; use Prj;
package MLib.Tgt is
function Support_For_Libraries return Library_Support;
-- Indicates how building libraries by gnatmake is supported by the GNAT
-- implementation for the platform.
function Standalone_Library_Auto_Init_Is_Supported return Boolean;
-- Indicates if when building a dynamic Standalone Library,
-- automatic initialization is supported. If it is, then it is the default,
-- unless attribute Library_Auto_Init has the value "false".
function Archive_Builder return String;
-- Returns the name of the archive builder program, usually "ar"
function Archive_Builder_Options return String_List_Access;
-- A list of options to invoke the Archive_Builder, usually "cr" for "ar"
function Archive_Builder_Append_Options return String_List_Access;
-- A list of options to use with the archive builder to append object
-- files ("q", for example).
function Archive_Indexer return String;
-- Returns the name of the program, if any, that generates an index to the
-- contents of an archive, usually "ranlib". If there is no archive indexer
-- to be used, returns an empty string.
function Archive_Indexer_Options return String_List_Access;
-- A list of options to invoke the Archive_Indexer, usually empty
function Dynamic_Option return String;
-- gcc option to create a dynamic library.
-- For Unix, returns "-shared", for Windows returns "-mdll".
function Libgnat return String;
-- System dependent static GNAT library
function Archive_Ext return String;
-- System dependent static library extension, without leading dot.
-- For Unix and Windows, return "a".
function Object_Ext return String;
-- System dependent object extension, without leading dot.
-- On Unix, returns "o".
function DLL_Prefix return String;
-- System dependent dynamic library prefix.
-- On Windows, returns "". On other platforms, returns "lib".
function DLL_Ext return String;
-- System dependent dynamic library extension, without leading dot.
-- On Windows, returns "dll". On Unix, usually returns "so", but not
-- always, e.g. on HP-UX the extension for shared libraries is "sl".
function PIC_Option return String;
-- Position independent code option
function Is_Object_Ext (Ext : String) return Boolean;
-- Returns True iff Ext is an object file extension
function Is_C_Ext (Ext : String) return Boolean;
-- Returns True iff Ext is a C file extension
function Is_Archive_Ext (Ext : String) return Boolean;
-- Returns True iff Ext is an extension for a library
function Default_Symbol_File_Name return String;
-- Returns the name of the symbol file when Library_Symbol_File is not
-- specified. Return the empty string when symbol files are not supported.
procedure Build_Dynamic_Library
(Ofiles : Argument_List;
Options : Argument_List;
Interfaces : Argument_List;
Lib_Filename : String;
Lib_Dir : String;
Symbol_Data : Symbol_Record;
Driver_Name : Name_Id := No_Name;
Lib_Version : String := "";
Auto_Init : Boolean := False);
-- Build a dynamic/relocatable library
--
-- Ofiles is the list of all object files in the library
--
-- Options is a list of options to be passed to the tool
-- (gcc or other) that effectively builds the dynamic library.
--
-- Interfaces is the list of ALI files for the interfaces of a SAL.
-- It is empty if the library is not a SAL.
--
-- Lib_Filename is the name of the library, without any prefix or
-- extension. For example, on Unix, if Lib_Filename is "toto", the
-- name of the library file will be "libtoto.so".
--
-- Lib_Dir is the directory path where the library will be located
--
-- For OSes that support symbolic links, Lib_Version, if non null,
-- is the actual file name of the library. For example on Unix, if
-- Lib_Filename is "toto" and Lib_Version is "libtoto.so.2.1",
-- "libtoto.so" will be a symbolic link to "libtoto.so.2.1" which
-- will be the actual library file.
--
-- Symbol_Data is used for some platforms, including VMS, to generate
-- the symbols to be exported by the library.
--
-- Note: Depending on the OS, some of the parameters may not be taken into
-- account. For example, on Linux, Interfaces, Symbol_Data and Auto_Init
-- are ignored.
function Library_Exists_For
(Project : Project_Id; In_Tree : Project_Tree_Ref) return Boolean;
-- Return True if the library file for a library project already exists.
-- This function can only be called for library projects.
function Library_File_Name_For
(Project : Project_Id;
In_Tree : Project_Tree_Ref) return File_Name_Type;
-- Returns the file name of the library file of a library project.
-- This function can only be called for library projects.
function Library_Major_Minor_Id_Supported return Boolean;
-- Indicates if major and minor ids are supported for libraries.
-- If they are supported, then a Library_Version such as libtoto.so.1.2
-- will have a major id of 1 and a minor id of 2. Then libtoto.so,
-- libtoto.so.1 and libtoto.so.1.2 will be created, all three designating
-- the same file.
private
No_Argument_List : constant Argument_List := (1 .. 0 => null);
-- Access to subprogram types for indirection
type String_Function is access function return String;
type Is_Ext_Function is access function (Ext : String) return Boolean;
type String_List_Access_Function is access function
return String_List_Access;
type Build_Dynamic_Library_Function is access procedure
(Ofiles : Argument_List;
Options : Argument_List;
Interfaces : Argument_List;
Lib_Filename : String;
Lib_Dir : String;
Symbol_Data : Symbol_Record;
Driver_Name : Name_Id := No_Name;
Lib_Version : String := "";
Auto_Init : Boolean := False);
type Library_Exists_For_Function is access function
(Project : Project_Id; In_Tree : Project_Tree_Ref) return Boolean;
type Library_File_Name_For_Function is access function
(Project : Project_Id;
In_Tree : Project_Tree_Ref) return File_Name_Type;
type Boolean_Function is access function return Boolean;
type Library_Support_Function is access function return Library_Support;
function Archive_Builder_Default return String;
Archive_Builder_Ptr : String_Function := Archive_Builder_Default'Access;
function Archive_Builder_Options_Default return String_List_Access;
Archive_Builder_Options_Ptr : String_List_Access_Function :=
Archive_Builder_Options_Default'Access;
function Archive_Builder_Append_Options_Default return String_List_Access;
Archive_Builder_Append_Options_Ptr : String_List_Access_Function :=
Archive_Builder_Append_Options_Default'Access;
function Archive_Ext_Default return String;
Archive_Ext_Ptr : String_Function := Archive_Ext_Default'Access;
function Archive_Indexer_Default return String;
Archive_Indexer_Ptr : String_Function := Archive_Indexer_Default'Access;
function Archive_Indexer_Options_Default return String_List_Access;
Archive_Indexer_Options_Ptr : String_List_Access_Function :=
Archive_Indexer_Options_Default'Access;
function Default_Symbol_File_Name_Default return String;
Default_Symbol_File_Name_Ptr : String_Function :=
Default_Symbol_File_Name_Default'Access;
Build_Dynamic_Library_Ptr : Build_Dynamic_Library_Function;
function DLL_Ext_Default return String;
DLL_Ext_Ptr : String_Function := DLL_Ext_Default'Access;
function DLL_Prefix_Default return String;
DLL_Prefix_Ptr : String_Function := DLL_Prefix_Default'Access;
function Dynamic_Option_Default return String;
Dynamic_Option_Ptr : String_Function := Dynamic_Option_Default'Access;
function Is_Object_Ext_Default (Ext : String) return Boolean;
Is_Object_Ext_Ptr : Is_Ext_Function := Is_Object_Ext_Default'Access;
function Is_C_Ext_Default (Ext : String) return Boolean;
Is_C_Ext_Ptr : Is_Ext_Function := Is_C_Ext_Default'Access;
function Is_Archive_Ext_Default (Ext : String) return Boolean;
Is_Archive_Ext_Ptr : Is_Ext_Function := Is_Archive_Ext_Default'Access;
function Libgnat_Default return String;
Libgnat_Ptr : String_Function := Libgnat_Default'Access;
function Library_Exists_For_Default
(Project : Project_Id; In_Tree : Project_Tree_Ref) return Boolean;
Library_Exists_For_Ptr : Library_Exists_For_Function :=
Library_Exists_For_Default'Access;
function Library_File_Name_For_Default
(Project : Project_Id;
In_Tree : Project_Tree_Ref) return File_Name_Type;
Library_File_Name_For_Ptr : Library_File_Name_For_Function :=
Library_File_Name_For_Default'Access;
function Object_Ext_Default return String;
Object_Ext_Ptr : String_Function := Object_Ext_Default'Access;
function PIC_Option_Default return String;
PIC_Option_Ptr : String_Function := PIC_Option_Default'Access;
function Standalone_Library_Auto_Init_Is_Supported_Default return Boolean;
Standalone_Library_Auto_Init_Is_Supported_Ptr : Boolean_Function :=
Standalone_Library_Auto_Init_Is_Supported_Default'Access;
function Support_For_Libraries_Default return Library_Support;
Support_For_Libraries_Ptr : Library_Support_Function :=
Support_For_Libraries_Default'Access;
function Library_Major_Minor_Id_Supported_Default return Boolean;
Library_Major_Minor_Id_Supported_Ptr : Boolean_Function :=
Library_Major_Minor_Id_Supported_Default'Access;
end MLib.Tgt;
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