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mdll.adb
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mdll.adb
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------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- M D L L --
-- --
-- B o d y --
-- --
-- Copyright (C) 1992-2007, Free Software Foundation, Inc. --
-- --
-- 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 the core high level routines used by GNATDLL
-- to build Windows DLL.
with Ada.Text_IO;
with GNAT.Directory_Operations;
with MDLL.Utl;
with MDLL.Fil;
package body MDLL is
use Ada;
use GNAT;
-- Convention used for the library names on Windows:
-- DLL: <name>.dll
-- Import library: lib<name>.dll
function Get_Dll_Name (Lib_Filename : String) return String;
-- Returns <Lib_Filename> if it contains a file extension otherwise it
-- returns <Lib_Filename>.dll.
---------------------------
-- Build_Dynamic_Library --
---------------------------
procedure Build_Dynamic_Library
(Ofiles : Argument_List;
Afiles : Argument_List;
Options : Argument_List;
Bargs_Options : Argument_List;
Largs_Options : Argument_List;
Lib_Filename : String;
Def_Filename : String;
Lib_Address : String := "";
Build_Import : Boolean := False;
Relocatable : Boolean := False;
Map_File : Boolean := False)
is
use type OS_Lib.Argument_List;
Base_Filename : constant String := MDLL.Fil.Ext_To (Lib_Filename);
Def_File : aliased constant String := Def_Filename;
Jnk_File : aliased String := Base_Filename & ".jnk";
Bas_File : aliased constant String := Base_Filename & ".base";
Dll_File : aliased String := Get_Dll_Name (Lib_Filename);
Exp_File : aliased String := Base_Filename & ".exp";
Lib_File : aliased constant String := "lib" & Base_Filename & ".dll.a";
Bas_Opt : aliased String := "-Wl,--base-file," & Bas_File;
Lib_Opt : aliased String := "-mdll";
Out_Opt : aliased String := "-o";
Adr_Opt : aliased String := "-Wl,--image-base=" & Lib_Address;
Map_Opt : aliased String := "-Wl,-Map," & Lib_Filename & ".map";
L_Afiles : Argument_List := Afiles;
-- Local afiles list. This list can be reordered to ensure that the
-- binder ALI file is not the first entry in this list.
All_Options : constant Argument_List := Options & Largs_Options;
procedure Build_Reloc_DLL;
-- Build a relocatable DLL with only objects file specified. This uses
-- the well known five step build (see GNAT User's Guide).
procedure Ada_Build_Reloc_DLL;
-- Build a relocatable DLL with Ada code. This uses the well known five
-- step build (see GNAT User's Guide).
procedure Build_Non_Reloc_DLL;
-- Build a non relocatable DLL containing no Ada code
procedure Ada_Build_Non_Reloc_DLL;
-- Build a non relocatable DLL with Ada code
---------------------
-- Build_Reloc_DLL --
---------------------
procedure Build_Reloc_DLL is
Objects_Exp_File : constant OS_Lib.Argument_List :=
Exp_File'Unchecked_Access & Ofiles;
-- Objects plus the export table (.exp) file
Success : Boolean;
pragma Warnings (Off, Success);
begin
if not Quiet then
Text_IO.Put_Line ("building relocatable DLL...");
Text_IO.Put ("make " & Dll_File);
if Build_Import then
Text_IO.Put_Line (" and " & Lib_File);
else
Text_IO.New_Line;
end if;
end if;
-- 1) Build base file with objects files
Utl.Gcc (Output_File => Jnk_File,
Files => Ofiles,
Options => All_Options,
Base_File => Bas_File,
Build_Lib => True);
-- 2) Build exp from base file
Utl.Dlltool (Def_File, Dll_File, Lib_File,
Base_File => Bas_File,
Exp_Table => Exp_File,
Build_Import => False);
-- 3) Build base file with exp file and objects files
Utl.Gcc (Output_File => Jnk_File,
Files => Objects_Exp_File,
Options => All_Options,
Base_File => Bas_File,
Build_Lib => True);
-- 4) Build new exp from base file and the lib file (.a)
Utl.Dlltool (Def_File, Dll_File, Lib_File,
Base_File => Bas_File,
Exp_Table => Exp_File,
Build_Import => Build_Import);
-- 5) Build the dynamic library
declare
Params : constant OS_Lib.Argument_List :=
Map_Opt'Unchecked_Access &
Adr_Opt'Unchecked_Access & All_Options;
First_Param : Positive := Params'First + 1;
begin
if Map_File then
First_Param := Params'First;
end if;
Utl.Gcc
(Output_File => Dll_File,
Files => Objects_Exp_File,
Options => Params (First_Param .. Params'Last),
Build_Lib => True);
end;
OS_Lib.Delete_File (Exp_File, Success);
OS_Lib.Delete_File (Bas_File, Success);
OS_Lib.Delete_File (Jnk_File, Success);
exception
when others =>
OS_Lib.Delete_File (Exp_File, Success);
OS_Lib.Delete_File (Bas_File, Success);
OS_Lib.Delete_File (Jnk_File, Success);
raise;
end Build_Reloc_DLL;
-------------------------
-- Ada_Build_Reloc_DLL --
-------------------------
procedure Ada_Build_Reloc_DLL is
Success : Boolean;
pragma Warnings (Off, Success);
begin
if not Quiet then
Text_IO.Put_Line ("Building relocatable DLL...");
Text_IO.Put ("make " & Dll_File);
if Build_Import then
Text_IO.Put_Line (" and " & Lib_File);
else
Text_IO.New_Line;
end if;
end if;
-- 1) Build base file with objects files
Utl.Gnatbind (L_Afiles, Options & Bargs_Options);
declare
Params : constant OS_Lib.Argument_List :=
Out_Opt'Unchecked_Access &
Jnk_File'Unchecked_Access &
Lib_Opt'Unchecked_Access &
Bas_Opt'Unchecked_Access &
Ofiles &
All_Options;
begin
Utl.Gnatlink (L_Afiles (L_Afiles'Last).all, Params);
end;
-- 2) Build exp from base file
Utl.Dlltool (Def_File, Dll_File, Lib_File,
Base_File => Bas_File,
Exp_Table => Exp_File,
Build_Import => False);
-- 3) Build base file with exp file and objects files
Utl.Gnatbind (L_Afiles, Options & Bargs_Options);
declare
Params : constant OS_Lib.Argument_List :=
Out_Opt'Unchecked_Access &
Jnk_File'Unchecked_Access &
Lib_Opt'Unchecked_Access &
Bas_Opt'Unchecked_Access &
Exp_File'Unchecked_Access &
Ofiles &
All_Options;
begin
Utl.Gnatlink (L_Afiles (L_Afiles'Last).all, Params);
end;
-- 4) Build new exp from base file and the lib file (.a)
Utl.Dlltool (Def_File, Dll_File, Lib_File,
Base_File => Bas_File,
Exp_Table => Exp_File,
Build_Import => Build_Import);
-- 5) Build the dynamic library
Utl.Gnatbind (L_Afiles, Options & Bargs_Options);
declare
Params : constant OS_Lib.Argument_List :=
Map_Opt'Unchecked_Access &
Out_Opt'Unchecked_Access &
Dll_File'Unchecked_Access &
Lib_Opt'Unchecked_Access &
Exp_File'Unchecked_Access &
Adr_Opt'Unchecked_Access &
Ofiles &
All_Options;
First_Param : Positive := Params'First + 1;
begin
if Map_File then
First_Param := Params'First;
end if;
Utl.Gnatlink
(L_Afiles (L_Afiles'Last).all,
Params (First_Param .. Params'Last));
end;
OS_Lib.Delete_File (Exp_File, Success);
OS_Lib.Delete_File (Bas_File, Success);
OS_Lib.Delete_File (Jnk_File, Success);
exception
when others =>
OS_Lib.Delete_File (Exp_File, Success);
OS_Lib.Delete_File (Bas_File, Success);
OS_Lib.Delete_File (Jnk_File, Success);
raise;
end Ada_Build_Reloc_DLL;
-------------------------
-- Build_Non_Reloc_DLL --
-------------------------
procedure Build_Non_Reloc_DLL is
Success : Boolean;
pragma Warnings (Off, Success);
begin
if not Quiet then
Text_IO.Put_Line ("building non relocatable DLL...");
Text_IO.Put ("make " & Dll_File &
" using address " & Lib_Address);
if Build_Import then
Text_IO.Put_Line (" and " & Lib_File);
else
Text_IO.New_Line;
end if;
end if;
-- Build exp table and the lib .a file
Utl.Dlltool (Def_File, Dll_File, Lib_File,
Exp_Table => Exp_File,
Build_Import => Build_Import);
-- Build the DLL
declare
Params : OS_Lib.Argument_List :=
Adr_Opt'Unchecked_Access & All_Options;
begin
if Map_File then
Params := Map_Opt'Unchecked_Access & Params;
end if;
Utl.Gcc (Output_File => Dll_File,
Files => Exp_File'Unchecked_Access & Ofiles,
Options => Params,
Build_Lib => True);
end;
OS_Lib.Delete_File (Exp_File, Success);
exception
when others =>
OS_Lib.Delete_File (Exp_File, Success);
raise;
end Build_Non_Reloc_DLL;
-----------------------------
-- Ada_Build_Non_Reloc_DLL --
-----------------------------
-- Build a non relocatable DLL with Ada code
procedure Ada_Build_Non_Reloc_DLL is
Success : Boolean;
pragma Warnings (Off, Success);
begin
if not Quiet then
Text_IO.Put_Line ("building non relocatable DLL...");
Text_IO.Put ("make " & Dll_File &
" using address " & Lib_Address);
if Build_Import then
Text_IO.Put_Line (" and " & Lib_File);
else
Text_IO.New_Line;
end if;
end if;
-- Build exp table and the lib .a file
Utl.Dlltool (Def_File, Dll_File, Lib_File,
Exp_Table => Exp_File,
Build_Import => Build_Import);
-- Build the DLL
Utl.Gnatbind (L_Afiles, Options & Bargs_Options);
declare
Params : OS_Lib.Argument_List :=
Out_Opt'Unchecked_Access &
Dll_File'Unchecked_Access &
Lib_Opt'Unchecked_Access &
Exp_File'Unchecked_Access &
Adr_Opt'Unchecked_Access &
Ofiles &
All_Options;
begin
if Map_File then
Params := Map_Opt'Unchecked_Access & Params;
end if;
Utl.Gnatlink (L_Afiles (L_Afiles'Last).all, Params);
end;
OS_Lib.Delete_File (Exp_File, Success);
exception
when others =>
OS_Lib.Delete_File (Exp_File, Success);
raise;
end Ada_Build_Non_Reloc_DLL;
-- Start of processing for Build_Dynamic_Library
begin
-- On Windows the binder file must not be in the first position in the
-- list. This is due to the way DLL's are built on Windows. We swap the
-- first ali with the last one if it is the case.
if L_Afiles'Length > 1 then
declare
Filename : constant String :=
Directory_Operations.Base_Name
(L_Afiles (L_Afiles'First).all);
First : constant Positive := Filename'First;
begin
if Filename (First .. First + 1) = "b~" then
L_Afiles (L_Afiles'Last) := Afiles (Afiles'First);
L_Afiles (L_Afiles'First) := Afiles (Afiles'Last);
end if;
end;
end if;
case Relocatable is
when True =>
if L_Afiles'Length = 0 then
Build_Reloc_DLL;
else
Ada_Build_Reloc_DLL;
end if;
when False =>
if L_Afiles'Length = 0 then
Build_Non_Reloc_DLL;
else
Ada_Build_Non_Reloc_DLL;
end if;
end case;
end Build_Dynamic_Library;
--------------------------
-- Build_Import_Library --
--------------------------
procedure Build_Import_Library
(Lib_Filename : String;
Def_Filename : String)
is
procedure Build_Import_Library (Lib_Filename : String);
-- Build an import library. This is to build only a .a library to link
-- against a DLL.
--------------------------
-- Build_Import_Library --
--------------------------
procedure Build_Import_Library (Lib_Filename : String) is
function No_Lib_Prefix (Filename : String) return String;
-- Return Filename without the lib prefix if present
-------------------
-- No_Lib_Prefix --
-------------------
function No_Lib_Prefix (Filename : String) return String is
begin
if Filename (Filename'First .. Filename'First + 2) = "lib" then
return Filename (Filename'First + 3 .. Filename'Last);
else
return Filename;
end if;
end No_Lib_Prefix;
-- Local variables
Def_File : String renames Def_Filename;
Dll_File : constant String := Get_Dll_Name (Lib_Filename);
Base_Filename : constant String :=
MDLL.Fil.Ext_To (No_Lib_Prefix (Lib_Filename));
Lib_File : constant String := "lib" & Base_Filename & ".dll.a";
-- Start of processing for Build_Import_Library
begin
if not Quiet then
Text_IO.Put_Line ("Building import library...");
Text_IO.Put_Line
("make " & Lib_File & " to use dynamic library " & Dll_File);
end if;
Utl.Dlltool
(Def_File, Dll_File, Lib_File, Build_Import => True);
end Build_Import_Library;
-- Start of processing for Build_Import_Library
begin
Build_Import_Library (Lib_Filename);
end Build_Import_Library;
------------------
-- Get_Dll_Name --
------------------
function Get_Dll_Name (Lib_Filename : String) return String is
begin
if MDLL.Fil.Get_Ext (Lib_Filename) = "" then
return Lib_Filename & ".dll";
else
return Lib_Filename;
end if;
end Get_Dll_Name;
end MDLL;