Write out global initializers and data rel directly to ELF file.

src/IceTargetLowering.h

 //===- subzero/src/IceTargetLowering.h - Lowering interface -----*- C++ -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file declares the TargetLowering and LoweringContext
@@ skipping 239 matching lines @@
   TargetGlobalInitLowering &operator=(const TargetGlobalInitLowering &) =
       delete;
 
 public:
   static TargetGlobalInitLowering *createLowering(TargetArch Target,
                                                   GlobalContext *Ctx);
   virtual ~TargetGlobalInitLowering();
 
   virtual void lower(const VariableDeclaration &Var) = 0;
 
+  virtual void lowerGlobalsELF(const VariableDeclarationList &Vars) = 0;
+
 protected:
   TargetGlobalInitLowering(GlobalContext *Ctx) : Ctx(Ctx) {}
   GlobalContext *Ctx;
 };
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICETARGETLOWERING_H