| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT COMPILER COMPONENTS -- |
| -- -- |
| -- M L I B . T G T -- |
| -- (GNU/Linux Version) -- |
| -- -- |
| -- B o d y -- |
| -- -- |
| -- $Revision$ |
| -- -- |
| -- Copyright (C) 2001, Ada Core Technologies, 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 2, 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 COPYING. If not, write -- |
| -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- |
| -- MA 02111-1307, USA. -- |
| -- -- |
| -- GNAT was originally developed by the GNAT team at New York University. -- |
| -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| -- This package provides a set of target dependent routines to build |
| -- static, dynamic and shared libraries. |
| |
| -- This is the GNU/Linux version of the body. |
| |
| with Ada.Characters.Handling; use Ada.Characters.Handling; |
| with GNAT.Directory_Operations; use GNAT.Directory_Operations; |
| with MLib.Fil; |
| with MLib.Utl; |
| with Namet; use Namet; |
| with Opt; |
| with Osint; use Osint; |
| with Output; use Output; |
| with System; |
| |
| package body MLib.Tgt is |
| |
| use GNAT; |
| use MLib; |
| |
| -- ??? serious lack of comments below, all these declarations need to |
| -- be commented, none are: |
| |
| package Files renames MLib.Fil; |
| package Tools renames MLib.Utl; |
| |
| Args : Argument_List_Access := new Argument_List (1 .. 20); |
| Last_Arg : Natural := 0; |
| |
| Cp : constant String_Access := Locate_Exec_On_Path ("cp"); |
| Force : constant String_Access := new String'("-f"); |
| |
| procedure Add_Arg (Arg : String); |
| |
| ------------- |
| -- Add_Arg -- |
| ------------- |
| |
| procedure Add_Arg (Arg : String) is |
| begin |
| if Last_Arg = Args'Last then |
| declare |
| New_Args : constant Argument_List_Access := |
| new Argument_List (1 .. Args'Last * 2); |
| |
| begin |
| New_Args (Args'Range) := Args.all; |
| Args := New_Args; |
| end; |
| end if; |
| |
| Last_Arg := Last_Arg + 1; |
| Args (Last_Arg) := new String'(Arg); |
| end Add_Arg; |
| |
| ----------------- |
| -- Archive_Ext -- |
| ----------------- |
| |
| function Archive_Ext return String is |
| begin |
| return "a"; |
| end Archive_Ext; |
| |
| ----------------- |
| -- Base_Option -- |
| ----------------- |
| |
| function Base_Option return String is |
| begin |
| return ""; |
| end Base_Option; |
| |
| --------------------------- |
| -- Build_Dynamic_Library -- |
| --------------------------- |
| |
| procedure Build_Dynamic_Library |
| (Ofiles : Argument_List; |
| Foreign : Argument_List; |
| Afiles : Argument_List; |
| Options : Argument_List; |
| Lib_Filename : String; |
| Lib_Dir : String; |
| Lib_Address : String := ""; |
| Lib_Version : String := ""; |
| Relocatable : Boolean := False) |
| is |
| Lib_File : constant String := |
| Lib_Dir & Directory_Separator & "lib" & |
| Files.Ext_To (Lib_Filename, DLL_Ext); |
| |
| use type Argument_List; |
| use type String_Access; |
| |
| Version_Arg : String_Access; |
| |
| Symbolic_Link_Needed : Boolean := False; |
| |
| begin |
| if Opt.Verbose_Mode then |
| Write_Str ("building relocatable shared library "); |
| Write_Line (Lib_File); |
| end if; |
| |
| if Lib_Version = "" then |
| Tools.Gcc |
| (Output_File => Lib_File, |
| Objects => Ofiles, |
| Options => Options); |
| |
| else |
| Version_Arg := new String'("-Wl,-soname," & Lib_Version); |
| |
| if Is_Absolute_Path (Lib_Version) then |
| Tools.Gcc |
| (Output_File => Lib_Version, |
| Objects => Ofiles, |
| Options => Options & Version_Arg); |
| Symbolic_Link_Needed := Lib_Version /= Lib_File; |
| |
| else |
| Tools.Gcc |
| (Output_File => Lib_Dir & Directory_Separator & Lib_Version, |
| Objects => Ofiles, |
| Options => Options & Version_Arg); |
| Symbolic_Link_Needed := |
| Lib_Dir & Directory_Separator & Lib_Version /= Lib_File; |
| end if; |
| |
| if Symbolic_Link_Needed then |
| declare |
| Success : Boolean; |
| Oldpath : String (1 .. Lib_Version'Length + 1); |
| Newpath : String (1 .. Lib_File'Length + 1); |
| Result : Integer; |
| |
| function Symlink |
| (Oldpath : System.Address; |
| Newpath : System.Address) |
| return Integer; |
| pragma Import (C, Symlink, "__gnat_symlink"); |
| |
| begin |
| Oldpath (1 .. Lib_Version'Length) := Lib_Version; |
| Oldpath (Oldpath'Last) := ASCII.NUL; |
| Newpath (1 .. Lib_File'Length) := Lib_File; |
| Newpath (Newpath'Last) := ASCII.NUL; |
| |
| Delete_File (Lib_File, Success); |
| |
| Result := Symlink (Oldpath'Address, Newpath'Address); |
| end; |
| end if; |
| end if; |
| end Build_Dynamic_Library; |
| |
| -------------------- |
| -- Copy_ALI_Files -- |
| -------------------- |
| |
| procedure Copy_ALI_Files |
| (From : Name_Id; |
| To : Name_Id) |
| is |
| Dir : Dir_Type; |
| Name : String (1 .. 1_000); |
| Last : Natural; |
| Success : Boolean; |
| From_Dir : constant String := Get_Name_String (From); |
| To_Dir : constant String_Access := |
| new String'(Get_Name_String (To)); |
| |
| begin |
| Last_Arg := 0; |
| Open (Dir, From_Dir); |
| |
| loop |
| Read (Dir, Name, Last); |
| exit when Last = 0; |
| if Last > 4 |
| |
| and then |
| To_Lower (Name (Last - 3 .. Last)) = ".ali" |
| then |
| Add_Arg (From_Dir & Directory_Separator & Name (1 .. Last)); |
| end if; |
| end loop; |
| |
| if Last_Arg /= 0 then |
| if not Opt.Quiet_Output then |
| Write_Str ("cp -f "); |
| |
| for J in 1 .. Last_Arg loop |
| Write_Str (Args (J).all); |
| Write_Char (' '); |
| end loop; |
| |
| Write_Line (To_Dir.all); |
| end if; |
| |
| Spawn (Cp.all, |
| Force & Args (1 .. Last_Arg) & To_Dir, |
| Success); |
| |
| if not Success then |
| Fail ("could not copy ALI files to library dir"); |
| end if; |
| end if; |
| end Copy_ALI_Files; |
| |
| ------------------------- |
| -- Default_DLL_Address -- |
| ------------------------- |
| |
| function Default_DLL_Address return String is |
| begin |
| return ""; |
| end Default_DLL_Address; |
| |
| ------------- |
| -- DLL_Ext -- |
| ------------- |
| |
| function DLL_Ext return String is |
| begin |
| return "so"; |
| end DLL_Ext; |
| |
| -------------------- |
| -- Dynamic_Option -- |
| -------------------- |
| |
| function Dynamic_Option return String is |
| begin |
| return "-shared"; |
| end Dynamic_Option; |
| |
| ------------------- |
| -- Is_Object_Ext -- |
| ------------------- |
| |
| function Is_Object_Ext (Ext : String) return Boolean is |
| begin |
| return Ext = ".o"; |
| end Is_Object_Ext; |
| |
| -------------- |
| -- Is_C_Ext -- |
| -------------- |
| |
| function Is_C_Ext (Ext : String) return Boolean is |
| begin |
| return Ext = ".c"; |
| end Is_C_Ext; |
| |
| -------------------- |
| -- Is_Archive_Ext -- |
| -------------------- |
| |
| function Is_Archive_Ext (Ext : String) return Boolean is |
| begin |
| return Ext = ".a" or else Ext = ".so"; |
| end Is_Archive_Ext; |
| |
| ------------- |
| -- Libgnat -- |
| ------------- |
| |
| function Libgnat return String is |
| begin |
| return "libgnat.a"; |
| end Libgnat; |
| |
| ----------------------------- |
| -- Libraries_Are_Supported -- |
| ----------------------------- |
| |
| function Libraries_Are_Supported return Boolean is |
| begin |
| return True; |
| end Libraries_Are_Supported; |
| |
| -------------------------------- |
| -- Linker_Library_Path_Option -- |
| -------------------------------- |
| |
| function Linker_Library_Path_Option |
| (Directory : String) |
| return String_Access |
| is |
| begin |
| return new String'("-Wl,-rpath," & Directory); |
| end Linker_Library_Path_Option; |
| |
| ---------------- |
| -- Object_Ext -- |
| ---------------- |
| |
| function Object_Ext return String is |
| begin |
| return "o"; |
| end Object_Ext; |
| |
| ---------------- |
| -- PIC_Option -- |
| ---------------- |
| |
| function PIC_Option return String is |
| begin |
| return "-fPIC"; |
| end PIC_Option; |
| |
| end MLib.Tgt; |