Minor Native Client specific changes to files in src.

src/v8utils.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 167 matching lines @@
   T* a = NULL;
   U* b = NULL;
   a = b;  // Fake assignment to check assignability.
   USE(a);
 #endif  // DEBUG
 #if defined(V8_HOST_ARCH_IA32)
 #define STOS "stosl"
 #elif defined(V8_HOST_ARCH_X64)
 #define STOS "stosq"
 #endif
+#if defined(__native_client__)
+  // This STOS sequence does not validate for x86_64 Native Client.
+  // Here we #undef STOS to force use of the slower C version.
+  // TODO(bradchen): Profile V8 and implement a faster REP STOS
+  // here if the profile indicates it matters.
+#undef STOS
+#endif
 
 #if defined(__GNUC__) && defined(STOS)
   asm volatile(
       "cld;"
       "rep ; " STOS
       : "+&c" (counter), "+&D" (dest)
       : "a" (value)
       : "memory", "cc");
 #else
   for (int i = 0; i < counter; i++) {
@@ skipping 103 matching lines @@
 
   // Add formatted contents like printf based on a va_list.
   void AddFormattedList(const char* format, va_list list);
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(StringBuilder);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_V8UTILS_H_