ARM64: Enable low level profiling.

src/log.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stdarg.h>
 
 #include "src/v8.h"
 
 #include "src/bootstrapper.h"
 #include "src/code-stubs.h"
@@ skipping 546 matching lines @@
 #elif V8_TARGET_ARCH_X64 && V8_TARGET_ARCH_64_BIT
   const char arch[] = "x64";
 #elif V8_TARGET_ARCH_X64 && V8_TARGET_ARCH_32_BIT
   const char arch[] = "x32";
 #elif V8_TARGET_ARCH_ARM
   const char arch[] = "arm";
 #elif V8_TARGET_ARCH_MIPS
   const char arch[] = "mips";
 #elif V8_TARGET_ARCH_X87
   const char arch[] = "x87";
+#elif V8_TARGET_ARCH_ARM64
+  const char arch[] = "arm64";
 #else
   const char arch[] = "unknown";
 #endif
   LogWriteBytes(arch, sizeof(arch));
 }
 
 
 void LowLevelLogger::LogRecordedBuffer(Code* code,
                                        SharedFunctionInfo*,
                                        const char* name,
@@ skipping 1544 matching lines @@
   if (jit_logger_) {
     removeCodeEventListener(jit_logger_);
     delete jit_logger_;
     jit_logger_ = NULL;
   }
 
   return log_->Close();
 }
 
 } }  // namespace v8::internal