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src/x64/macro-assembler-x64.h

 // Copyright 2011 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
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   // Push and pop the registers that can hold pointers.
   void PushSafepointRegisters() { Pushad(); }
   void PopSafepointRegisters() { Popad(); }
   // Store the value in register src in the safepoint register stack
   // slot for register dst.
   void StoreToSafepointRegisterSlot(Register dst, Register src);
   void LoadFromSafepointRegisterSlot(Register dst, Register src);
 
   void InitializeRootRegister() {
-    ExternalReference roots_address =
-        ExternalReference::roots_address(isolate());
-    movq(kRootRegister, roots_address);
+    ExternalReference roots_array_start =
+        ExternalReference::roots_array_start(isolate());
+    movq(kRootRegister, roots_array_start);
     addq(kRootRegister, Immediate(kRootRegisterBias));
   }
 
   // ---------------------------------------------------------------------------
   // JavaScript invokes
 
   // Setup call kind marking in rcx. The method takes rcx as an
   // explicit first parameter to make the code more readable at the
   // call sites.
   void SetCallKind(Register dst, CallKind kind);
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     masm->popfd();                                                        \
   }                                                                       \
   masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 
 } }  // namespace v8::internal
 
 #endif  // V8_X64_MACRO_ASSEMBLER_X64_H_