New Language: Ada

From-SVN: r45952

1 files changed, 343 insertions, 0 deletions

diff --git a/gcc/ada/5lml-tgt.adb b/gcc/ada/5lml-tgt.adb
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+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT COMPILER COMPONENTS                         --
+--                                                                          --
+--                             M L I B . T G T                              --
+--                             (Linux Version)                              --
+--                                                                          --
+--                                 B o d y                                  --
+--                                                                          --
+--                            $Revision: 1.2 $
+--                                                                          --
+--              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 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;