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diff --git a/src/ortho/llvm35/ortho_jit.adb b/src/ortho/llvm35/ortho_jit.adb
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+++ b/src/ortho/llvm35/ortho_jit.adb
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+--  LLVM back-end for ortho.
+--  Copyright (C) 2014 Tristan Gingold
+--
+--  GHDL is free software; you can redistribute it and/or modify it under
+--  the terms of the GNU General Public License as published by the Free
+--  Software Foundation; either version 2, or (at your option) any later
+--  version.
+--
+--  GHDL is distributed in the hope that it will be useful, but WITHOUT 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
+--  along with GCC; see the file COPYING.  If not, write to the Free
+--  Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+--  02111-1307, USA.
+
+--  with GNAT.OS_Lib; use GNAT.OS_Lib;
+with Ada.Text_IO; use Ada.Text_IO;
+
+with Ortho_LLVM; use Ortho_LLVM;
+with Ortho_LLVM.Jit;
+
+with LLVM.Core; use LLVM.Core;
+with LLVM.Target; use LLVM.Target;
+--  with LLVM.TargetMachine; use LLVM.TargetMachine;
+with LLVM.ExecutionEngine; use LLVM.ExecutionEngine;
+with LLVM.Analysis;
+--  with Interfaces;
+with Interfaces.C; use Interfaces.C;
+
+package body Ortho_Jit is
+   --  Snap_Filename : GNAT.OS_Lib.String_Access := null;
+
+   Flag_Dump_Llvm : Boolean := False;
+
+   --  Name of the module.
+   Module_Name : String := "ortho" & Ascii.Nul;
+
+   --  procedure DisableLazyCompilation (EE : ExecutionEngineRef;
+   --                                    Disable : int);
+   --  pragma Import (C, DisableLazyCompilation,
+   --        "LLVMDisableLazyCompilation");
+
+   --  Initialize the whole engine.
+   procedure Init
+   is
+      Msg : aliased Cstring;
+   begin
+      InitializeNativeTarget;
+      InitializeNativeAsmPrinter;
+
+      LinkInJIT;
+
+      Module := ModuleCreateWithName (Module_Name'Address);
+
+      -- Now we going to create JIT
+      if CreateExecutionEngineForModule
+        (Ortho_LLVM.Jit.Engine'Access, Module, Msg'Access) /= 0
+      then
+         Put_Line (Standard_Error, "cannot create execution engine");
+         raise Program_Error;
+      end if;
+
+      Target_Data := GetExecutionEngineTargetData (Ortho_LLVM.Jit.Engine);
+      SetDataLayout (Module, CopyStringRepOfTargetData (Target_Data));
+
+      Ortho_LLVM.Init;
+   end Init;
+
+   procedure Set_Address (Decl : O_Dnode; Addr : Address)
+     renames Ortho_LLVM.Jit.Set_Address;
+
+   function Get_Address (Decl : O_Dnode) return Address
+     renames Ortho_LLVM.Jit.Get_Address;
+
+   --  procedure InstallLazyFunctionCreator (EE : ExecutionEngineRef;
+   --                                        Func : Address);
+   --  pragma Import (C, InstallLazyFunctionCreator,
+   --                 "LLVMInstallLazyFunctionCreator");
+
+   --  Do link.
+   procedure Link (Status : out Boolean)
+   is
+      use LLVM.Analysis;
+      Msg : aliased Cstring;
+   begin
+      if Flag_Debug then
+         Ortho_LLVM.Finish_Debug;
+      end if;
+
+      if Flag_Dump_Llvm then
+         DumpModule (Module);
+      end if;
+
+      --  Verify module.
+      if LLVM.Analysis.VerifyModule
+        (Module, LLVM.Analysis.PrintMessageAction, Msg'Access) /= 0
+      then
+         DisposeMessage (Msg);
+         Status := False;
+         return;
+      end if;
+
+      --  FIXME: optim
+   end Link;
+
+   procedure Finish
+   is
+      --  F : ValueRef;
+      --  Addr : Address;
+      --  pragma Unreferenced (Addr);
+   begin
+      null;
+
+      --  if No_Lazy then
+      --     --  Be sure all functions code has been generated.
+      --     F := GetFirstFunction (Module);
+      --     while F /= Null_ValueRef loop
+      --        if GetFirstBasicBlock (F) /= Null_BasicBlockRef then
+      --           --  Only care about defined functions.
+      --           Addr := GetPointerToFunction (EE, F);
+      --        end if;
+      --        F := GetNextFunction (F);
+      --     end loop;
+      --  end if;
+   end Finish;
+
+   function Decode_Option (Option : String) return Boolean
+   is
+      Opt : constant String (1 .. Option'Length) := Option;
+   begin
+      if Opt = "--llvm-dump" then
+         Flag_Dump_Llvm := True;
+         return True;
+      end if;
+      return False;
+   end Decode_Option;
+
+   procedure Disp_Help is
+   begin
+      null;
+   end Disp_Help;
+
+   function Get_Jit_Name return String is
+   begin
+      return "LLVM";
+   end Get_Jit_Name;
+
+end Ortho_Jit;