Using RelocInfo instead of DebuggerStatementStub

src/x64/virtual-frame-x64.cc

 // Copyright 2010 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 951 matching lines @@
 Result VirtualFrame::CallRuntime(Runtime::FunctionId id, int arg_count) {
   PrepareForCall(arg_count, arg_count);
   ASSERT(cgen()->HasValidEntryRegisters());
   __ CallRuntime(id, arg_count);
   Result result = cgen()->allocator()->Allocate(rax);
   ASSERT(result.is_valid());
   return result;
 }
 
 
+#ifdef ENABLE_DEBUGGER_SUPPORT
+void VirtualFrame::DebugBreak() {
+  PrepareForCall(0, 0);
+  ASSERT(cgen()->HasValidEntryRegisters());
+  __ DebugBreak();
+  Result result = cgen()->allocator()->Allocate(rax);
+  ASSERT(result.is_valid());
+}
+#endif
+
+
 Result VirtualFrame::CallLoadIC(RelocInfo::Mode mode) {
   // Name and receiver are on the top of the frame.  The IC expects
   // name in rcx and receiver on the stack.  It does not drop the
   // receiver.
   Handle<Code> ic(Builtins::builtin(Builtins::LoadIC_Initialize));
   Result name = Pop();
   PrepareForCall(1, 0);  // One stack arg, not callee-dropped.
   name.ToRegister(rcx);
   name.Unuse();
   return RawCallCodeObject(ic, mode);
@@ skipping 112 matching lines @@
   // Grow the expression stack by handler size less one (the return
   // address is already pushed by a call instruction).
   Adjust(kHandlerSize - 1);
   __ PushTryHandler(IN_JAVASCRIPT, type);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal