271 lines
12 KiB
Ada
271 lines
12 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- GNAT COMPILER COMPONENTS --
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-- --
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-- M L I B . T G T --
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-- --
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-- S p e c --
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-- --
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-- Copyright (C) 2001-2014, AdaCore --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 3, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
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-- for more details. You should have received a copy of the GNU General --
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-- Public License distributed with GNAT; see file COPYING3. If not, go to --
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-- http://www.gnu.org/licenses for a complete copy of the license. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc. --
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-- --
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------------------------------------------------------------------------------
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-- This package provides a set of target dependent routines to build static,
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-- dynamic and shared libraries. There are several packages providing
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-- the actual routines. This package calls them indirectly by means of
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-- access-to-subprogram values. Each target-dependent package initializes
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-- these values in its elaboration block.
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with Prj; use Prj;
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package MLib.Tgt is
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function Support_For_Libraries return Library_Support;
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-- Indicates how building libraries by gnatmake is supported by the GNAT
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-- implementation for the platform.
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function Standalone_Library_Auto_Init_Is_Supported return Boolean;
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-- Indicates if when building a dynamic Standalone Library,
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-- automatic initialization is supported. If it is, then it is the default,
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-- unless attribute Library_Auto_Init has the value "false".
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function Archive_Builder return String;
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-- Returns the name of the archive builder program, usually "ar"
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function Archive_Builder_Options return String_List_Access;
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-- A list of options to invoke the Archive_Builder, usually "cr" for "ar"
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function Archive_Builder_Append_Options return String_List_Access;
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-- A list of options to use with the archive builder to append object
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-- files ("q", for example).
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function Archive_Indexer return String;
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-- Returns the name of the program, if any, that generates an index to the
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-- contents of an archive, usually "ranlib". If there is no archive indexer
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-- to be used, returns an empty string.
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function Archive_Indexer_Options return String_List_Access;
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-- A list of options to invoke the Archive_Indexer, usually empty
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function Dynamic_Option return String;
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-- gcc option to create a dynamic library.
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-- For Unix, returns "-shared", for Windows returns "-mdll".
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function Libgnat return String;
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-- System dependent static GNAT library
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function Archive_Ext return String;
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-- System dependent static library extension, without leading dot.
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-- For Unix and Windows, return "a".
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function Object_Ext return String;
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-- System dependent object extension, without leading dot.
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-- On Unix, returns "o".
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function DLL_Prefix return String;
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-- System dependent dynamic library prefix.
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-- On Windows, returns "". On other platforms, returns "lib".
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function DLL_Ext return String;
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-- System dependent dynamic library extension, without leading dot.
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-- On Windows, returns "dll". On Unix, usually returns "so", but not
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-- always, e.g. on HP-UX the extension for shared libraries is "sl".
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function PIC_Option return String;
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-- Position independent code option
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function Is_Object_Ext (Ext : String) return Boolean;
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-- Returns True iff Ext is an object file extension
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function Is_C_Ext (Ext : String) return Boolean;
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-- Returns True iff Ext is a C file extension
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function Is_Archive_Ext (Ext : String) return Boolean;
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-- Returns True iff Ext is an extension for a library
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function Default_Symbol_File_Name return String;
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-- Returns the name of the symbol file when Library_Symbol_File is not
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-- specified. Return the empty string when symbol files are not supported.
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procedure Build_Dynamic_Library
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(Ofiles : Argument_List;
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Options : Argument_List;
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Interfaces : Argument_List;
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Lib_Filename : String;
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Lib_Dir : String;
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Symbol_Data : Symbol_Record;
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Driver_Name : Name_Id := No_Name;
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Lib_Version : String := "";
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Auto_Init : Boolean := False);
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-- Build a dynamic/relocatable library
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--
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-- Ofiles is the list of all object files in the library
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--
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-- Options is a list of options to be passed to the tool
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-- (gcc or other) that effectively builds the dynamic library.
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--
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-- Interfaces is the list of ALI files for the interfaces of a SAL.
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-- It is empty if the library is not a SAL.
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--
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-- Lib_Filename is the name of the library, without any prefix or
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-- extension. For example, on Unix, if Lib_Filename is "toto", the
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-- name of the library file will be "libtoto.so".
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--
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-- Lib_Dir is the directory path where the library will be located
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--
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-- For OSes that support symbolic links, Lib_Version, if non null,
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-- is the actual file name of the library. For example on Unix, if
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-- Lib_Filename is "toto" and Lib_Version is "libtoto.so.2.1",
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-- "libtoto.so" will be a symbolic link to "libtoto.so.2.1" which
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-- will be the actual library file.
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--
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-- Symbol_Data is used for some platforms, to generate the symbols to be
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-- exported by the library (not certain if it is currently in use or not).
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--
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-- Note: Depending on the OS, some of the parameters may not be taken into
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-- account. For example, on Linux, Interfaces, Symbol_Data and Auto_Init
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-- are ignored.
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function Library_Exists_For
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(Project : Project_Id;
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In_Tree : Project_Tree_Ref) return Boolean;
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-- Return True if the library file for a library project already exists.
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-- This function can only be called for library projects.
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function Library_File_Name_For
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(Project : Project_Id;
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In_Tree : Project_Tree_Ref) return File_Name_Type;
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-- Returns the file name of the library file of a library project.
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-- This function can only be called for library projects.
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function Library_Major_Minor_Id_Supported return Boolean;
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-- Indicates if major and minor ids are supported for libraries.
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-- If they are supported, then a Library_Version such as libtoto.so.1.2
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-- will have a major id of 1 and a minor id of 2. Then libtoto.so,
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-- libtoto.so.1 and libtoto.so.1.2 will be created, all three designating
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-- the same file.
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private
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No_Argument_List : constant Argument_List := (1 .. 0 => null);
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-- Access to subprogram types for indirection
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type String_Function is access function return String;
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type Is_Ext_Function is access function (Ext : String) return Boolean;
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type String_List_Access_Function is access function
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return String_List_Access;
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type Build_Dynamic_Library_Function is access procedure
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(Ofiles : Argument_List;
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Options : Argument_List;
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Interfaces : Argument_List;
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Lib_Filename : String;
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Lib_Dir : String;
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Symbol_Data : Symbol_Record;
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Driver_Name : Name_Id := No_Name;
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Lib_Version : String := "";
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Auto_Init : Boolean := False);
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type Library_Exists_For_Function is access function
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(Project : Project_Id;
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In_Tree : Project_Tree_Ref) return Boolean;
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type Library_File_Name_For_Function is access function
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(Project : Project_Id;
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In_Tree : Project_Tree_Ref) return File_Name_Type;
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type Boolean_Function is access function return Boolean;
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type Library_Support_Function is access function return Library_Support;
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function Archive_Builder_Default return String;
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Archive_Builder_Ptr : String_Function := Archive_Builder_Default'Access;
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function Archive_Builder_Options_Default return String_List_Access;
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Archive_Builder_Options_Ptr : String_List_Access_Function :=
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Archive_Builder_Options_Default'Access;
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function Archive_Builder_Append_Options_Default return String_List_Access;
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Archive_Builder_Append_Options_Ptr : String_List_Access_Function :=
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Archive_Builder_Append_Options_Default'Access;
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function Archive_Ext_Default return String;
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Archive_Ext_Ptr : String_Function := Archive_Ext_Default'Access;
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function Archive_Indexer_Default return String;
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Archive_Indexer_Ptr : String_Function := Archive_Indexer_Default'Access;
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function Archive_Indexer_Options_Default return String_List_Access;
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Archive_Indexer_Options_Ptr : String_List_Access_Function :=
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Archive_Indexer_Options_Default'Access;
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function Default_Symbol_File_Name_Default return String;
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Default_Symbol_File_Name_Ptr : String_Function :=
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Default_Symbol_File_Name_Default'Access;
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Build_Dynamic_Library_Ptr : Build_Dynamic_Library_Function;
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function DLL_Ext_Default return String;
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DLL_Ext_Ptr : String_Function := DLL_Ext_Default'Access;
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function DLL_Prefix_Default return String;
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DLL_Prefix_Ptr : String_Function := DLL_Prefix_Default'Access;
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function Dynamic_Option_Default return String;
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Dynamic_Option_Ptr : String_Function := Dynamic_Option_Default'Access;
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function Is_Object_Ext_Default (Ext : String) return Boolean;
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Is_Object_Ext_Ptr : Is_Ext_Function := Is_Object_Ext_Default'Access;
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function Is_C_Ext_Default (Ext : String) return Boolean;
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Is_C_Ext_Ptr : Is_Ext_Function := Is_C_Ext_Default'Access;
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function Is_Archive_Ext_Default (Ext : String) return Boolean;
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Is_Archive_Ext_Ptr : Is_Ext_Function := Is_Archive_Ext_Default'Access;
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function Libgnat_Default return String;
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Libgnat_Ptr : String_Function := Libgnat_Default'Access;
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function Library_Exists_For_Default
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(Project : Project_Id;
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In_Tree : Project_Tree_Ref) return Boolean;
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Library_Exists_For_Ptr : Library_Exists_For_Function :=
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Library_Exists_For_Default'Access;
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function Library_File_Name_For_Default
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(Project : Project_Id;
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In_Tree : Project_Tree_Ref) return File_Name_Type;
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Library_File_Name_For_Ptr : Library_File_Name_For_Function :=
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Library_File_Name_For_Default'Access;
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function Object_Ext_Default return String;
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Object_Ext_Ptr : String_Function := Object_Ext_Default'Access;
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function PIC_Option_Default return String;
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PIC_Option_Ptr : String_Function := PIC_Option_Default'Access;
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function Standalone_Library_Auto_Init_Is_Supported_Default return Boolean;
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Standalone_Library_Auto_Init_Is_Supported_Ptr : Boolean_Function :=
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Standalone_Library_Auto_Init_Is_Supported_Default'Access;
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function Support_For_Libraries_Default return Library_Support;
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Support_For_Libraries_Ptr : Library_Support_Function :=
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Support_For_Libraries_Default'Access;
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function Library_Major_Minor_Id_Supported_Default return Boolean;
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Library_Major_Minor_Id_Supported_Ptr : Boolean_Function :=
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Library_Major_Minor_Id_Supported_Default'Access;
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end MLib.Tgt;
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