LLVM: Add ELF Note section to NaCl object files identifying them as such to gold

lib/Target/X86/X86AsmPrinter.cpp

 //===-- X86AsmPrinter.cpp - Convert X86 LLVM code to AT&T assembly --------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file contains a printer that converts from our internal representation
@@ skipping 13 matching lines @@
 #include "llvm/CodeGen/MachineModuleInfoImpls.h"
 #include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
 #include "llvm/DebugInfo.h"
 #include "llvm/IR/CallingConv.h"
 #include "llvm/IR/DerivedTypes.h"
 #include "llvm/IR/Module.h"
 #include "llvm/IR/Type.h"
 #include "llvm/MC/MCAsmInfo.h"
 #include "llvm/MC/MCContext.h"
 #include "llvm/MC/MCExpr.h"
+#include "llvm/MC/MCNaCl.h"
 #include "llvm/MC/MCSectionMachO.h"
 #include "llvm/MC/MCStreamer.h"
 #include "llvm/MC/MCSymbol.h"
 #include "llvm/Support/COFF.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/TargetRegistry.h"
 #include "llvm/Target/Mangler.h"
 #include "llvm/Target/TargetOptions.h"
 using namespace llvm;
@@ skipping 496 matching lines @@
       return false;
     }
   }
   printMemReference(MI, OpNo, O);
   return false;
 }
 
 void X86AsmPrinter::EmitStartOfAsmFile(Module &M) {
   if (Subtarget->isTargetEnvMacho())
     OutStreamer.SwitchSection(getObjFileLowering().getTextSection());
+  // @LOCALMOD-BEGIN
+  if (Subtarget->isTargetNaCl())
+    initializeNaClMCStreamer(OutStreamer, OutContext,
+                             Subtarget->getTargetTriple());
+  // @LOCALMOD-END
 }
 
 
 void X86AsmPrinter::EmitEndOfAsmFile(Module &M) {
   if (Subtarget->isTargetEnvMacho()) {
     // All darwin targets use mach-o.
     MachineModuleInfoMachO &MMIMacho =
       MMI->getObjFileInfo<MachineModuleInfoMachO>();
 
     // Output stubs for dynamically-linked functions.
@@ skipping 215 matching lines @@
 
 //===----------------------------------------------------------------------===//
 // Target Registry Stuff
 //===----------------------------------------------------------------------===//
 
 // Force static initialization.
 extern "C" void LLVMInitializeX86AsmPrinter() {
   RegisterAsmPrinter<X86AsmPrinter> X(TheX86_32Target);
   RegisterAsmPrinter<X86AsmPrinter> Y(TheX86_64Target);
 }