------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- M L I B . T G T -- -- (GNU/Linux Version) -- -- -- -- B o d y -- -- -- -- Copyright (C) 2001-2004, 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 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. -- -- 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. -- This is the GNU/Linux version of the body. with MLib.Fil; with MLib.Utl; with Namet; use Namet; with Opt; with Output; use Output; with Prj.Com; with System; package body MLib.Tgt is use GNAT; use MLib; No_Arguments : aliased Argument_List := (1 .. 0 => null); Empty_Argument_List : constant Argument_List_Access := No_Arguments'Access; Wl_Init_String : aliased String := "-Wl,-init"; Wl_Init : constant String_Access := Wl_Init_String'Access; Wl_Fini_String : aliased String := "-Wl,-fini"; Wl_Fini : constant String_Access := Wl_Fini_String'Access; Init_Fini_List : constant Argument_List_Access := new Argument_List'(1 => Wl_Init, 2 => null, 3 => Wl_Fini, 4 => null); -- Used to put switches for automatic elaboration/finalization --------------------- -- Archive_Builder -- --------------------- function Archive_Builder return String is begin return "ar"; end Archive_Builder; ----------------------------- -- Archive_Builder_Options -- ----------------------------- function Archive_Builder_Options return String_List_Access is begin return new String_List'(1 => new String'("cr")); end Archive_Builder_Options; ----------------- -- Archive_Ext -- ----------------- function Archive_Ext return String is begin return "a"; end Archive_Ext; --------------------- -- Archive_Indexer -- --------------------- function Archive_Indexer return String is begin return "ranlib"; end Archive_Indexer; ----------------------------- -- Archive_Indexer_Options -- ----------------------------- function Archive_Indexer_Options return String_List_Access is begin return new String_List (1 .. 0); end Archive_Indexer_Options; --------------------------- -- Build_Dynamic_Library -- --------------------------- procedure Build_Dynamic_Library (Ofiles : Argument_List; Foreign : Argument_List; Afiles : Argument_List; Options : Argument_List; Options_2 : 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) is pragma Unreferenced (Foreign); pragma Unreferenced (Afiles); pragma Unreferenced (Interfaces); pragma Unreferenced (Symbol_Data); Lib_File : constant String := Lib_Dir & Directory_Separator & "lib" & Fil.Ext_To (Lib_Filename, DLL_Ext); Version_Arg : String_Access; Symbolic_Link_Needed : Boolean := False; Init_Fini : Argument_List_Access := Empty_Argument_List; begin if Opt.Verbose_Mode then Write_Str ("building relocatable shared library "); Write_Line (Lib_File); end if; -- If specified, add automatic elaboration/finalization if Auto_Init then Init_Fini := Init_Fini_List; Init_Fini (2) := new String'("-Wl," & Lib_Filename & "init"); Init_Fini (4) := new String'("-Wl," & Lib_Filename & "final"); end if; if Lib_Version = "" then Utl.Gcc (Output_File => Lib_File, Objects => Ofiles, Options => Options & Init_Fini.all, Driver_Name => Driver_Name, Options_2 => Options_2); else Version_Arg := new String'("-Wl,-soname," & Lib_Version); if Is_Absolute_Path (Lib_Version) then Utl.Gcc (Output_File => Lib_Version, Objects => Ofiles, Options => Options & Version_Arg & Init_Fini.all, Driver_Name => Driver_Name, Options_2 => Options_2); Symbolic_Link_Needed := Lib_Version /= Lib_File; else Utl.Gcc (Output_File => Lib_Dir & Directory_Separator & Lib_Version, Objects => Ofiles, Options => Options & Version_Arg & Init_Fini.all, Driver_Name => Driver_Name, Options_2 => Options_2); 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; pragma Unreferenced (Result); 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; ------------- -- 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; ------------------------ -- Library_Exists_For -- ------------------------ function Library_Exists_For (Project : Project_Id) return Boolean is begin if not Projects.Table (Project).Library then Prj.Com.Fail ("INTERNAL ERROR: Library_Exists_For called " & "for non library project"); return False; else declare Lib_Dir : constant String := Get_Name_String (Projects.Table (Project).Library_Dir); Lib_Name : constant String := Get_Name_String (Projects.Table (Project).Library_Name); begin if Projects.Table (Project).Library_Kind = Static then return Is_Regular_File (Lib_Dir & Directory_Separator & "lib" & Fil.Ext_To (Lib_Name, Archive_Ext)); else return Is_Regular_File (Lib_Dir & Directory_Separator & "lib" & Fil.Ext_To (Lib_Name, DLL_Ext)); end if; end; end if; end Library_Exists_For; --------------------------- -- Library_File_Name_For -- --------------------------- function Library_File_Name_For (Project : Project_Id) return Name_Id is begin if not Projects.Table (Project).Library then Prj.Com.Fail ("INTERNAL ERROR: Library_File_Name_For called " & "for non library project"); return No_Name; else declare Lib_Name : constant String := Get_Name_String (Projects.Table (Project).Library_Name); begin Name_Len := 3; Name_Buffer (1 .. Name_Len) := "lib"; if Projects.Table (Project).Library_Kind = Static then Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, Archive_Ext)); else Add_Str_To_Name_Buffer (Fil.Ext_To (Lib_Name, DLL_Ext)); end if; return Name_Find; end; end if; end Library_File_Name_For; ---------------- -- 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; ----------------------------------------------- -- Standalone_Library_Auto_Init_Is_Supported -- ----------------------------------------------- function Standalone_Library_Auto_Init_Is_Supported return Boolean is begin return True; end Standalone_Library_Auto_Init_Is_Supported; --------------------------- -- Support_For_Libraries -- --------------------------- function Support_For_Libraries return Library_Support is begin return Full; end Support_For_Libraries; end MLib.Tgt;