ARM64: Enable --perf-prof

src/perf-jit.h

 // Copyright 2016 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 53 matching lines @@
   static const int kLogBufferSize = 2 * MB;
 
   void LogWriteBytes(const char* bytes, int size);
   void LogWriteHeader();
   void LogWriteDebugInfo(Code* code, SharedFunctionInfo* shared);
 
   static const uint32_t kElfMachIA32 = 3;
   static const uint32_t kElfMachX64 = 62;
   static const uint32_t kElfMachARM = 40;
   static const uint32_t kElfMachMIPS = 10;
+  static const uint32_t kElfMachARM64 = 183;
 
   uint32_t GetElfMach() {
 #if V8_TARGET_ARCH_IA32
     return kElfMachIA32;
 #elif V8_TARGET_ARCH_X64
     return kElfMachX64;
 #elif V8_TARGET_ARCH_ARM
     return kElfMachARM;
 #elif V8_TARGET_ARCH_MIPS
     return kElfMachMIPS;
+#elif V8_TARGET_ARCH_ARM64
+    return kElfMachARM64;
 #else
     UNIMPLEMENTED();
     return 0;
 #endif
   }
 
   // Per-process singleton file. We assume that there is one main isolate;
   // to determine when it goes away, we keep reference count.
   static base::LazyRecursiveMutex file_mutex_;
   static FILE* perf_output_handle_;
@@ skipping 19 matching lines @@
   void LogRecordedBuffer(AbstractCode* code, SharedFunctionInfo* shared,
                          const char* name, int length) override {
     UNIMPLEMENTED();
   }
 };
 
 #endif  // V8_OS_LINUX
 }  // namespace internal
 }  // namespace v8
 #endif