Cleanup the way the debugger stores live registers when entering at a break...

src/x64/code-stubs-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 2458 matching lines @@
   __ movq(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
   __ bind(&skip);
   __ ret(0);
 }
 
 
 void ApiGetterEntryStub::Generate(MacroAssembler* masm) {
   Label empty_result;
   Label prologue;
   Label promote_scheduled_exception;
-  __ EnterApiExitFrame(ExitFrame::MODE_NORMAL, kStackSpace, 0);
+  __ EnterApiExitFrame(kStackSpace, 0);
   ASSERT_EQ(kArgc, 4);
 #ifdef _WIN64
   // All the parameters should be set up by a caller.
 #else
   // Set 1st parameter register with property name.
   __ movq(rsi, rdx);
   // Second parameter register rdi should be set with pointer to AccessorInfo
   // by a caller.
 #endif
   // Call the api function!
@@ skipping 10 matching lines @@
 #ifdef _WIN64
   // rax keeps a pointer to v8::Handle, unpack it.
   __ movq(rax, Operand(rax, 0));
 #endif
   // Check if the result handle holds 0.
   __ testq(rax, rax);
   __ j(zero, &empty_result);
   // It was non-zero.  Dereference to get the result value.
   __ movq(rax, Operand(rax, 0));
   __ bind(&prologue);
-  __ LeaveExitFrame(ExitFrame::MODE_NORMAL);
+  __ LeaveExitFrame();
   __ ret(0);
   __ bind(&promote_scheduled_exception);
   __ TailCallRuntime(Runtime::kPromoteScheduledException, 0, 1);
   __ bind(&empty_result);
   // It was zero; the result is undefined.
   __ Move(rax, Factory::undefined_value());
   __ jmp(&prologue);
 }
 
 
@@ skipping 89 matching lines @@
     __ movq(rax, Operand(rsp, 6 * kPointerSize));
     __ movq(rdx, Operand(rsp, 7 * kPointerSize));
   }
 #endif
   __ lea(rcx, Operand(rax, 1));
   // Lower 2 bits of rcx are 0 iff rax has failure tag.
   __ testl(rcx, Immediate(kFailureTagMask));
   __ j(zero, &failure_returned);
 
   // Exit the JavaScript to C++ exit frame.
-  __ LeaveExitFrame(mode_, result_size_);
+  __ LeaveExitFrame(result_size_);
   __ ret(0);
 
   // Handling of failure.
   __ bind(&failure_returned);
 
   Label retry;
   // If the returned exception is RETRY_AFTER_GC continue at retry label
   STATIC_ASSERT(Failure::RETRY_AFTER_GC == 0);
   __ testl(rax, Immediate(((1 << kFailureTypeTagSize) - 1) << kFailureTagSize));
   __ j(zero, &retry);
@@ skipping 83 matching lines @@
   // rbp: frame pointer of calling JS frame (restored after C call)
   // rsp: stack pointer  (restored after C call)
   // rsi: current context (restored)
 
   // NOTE: Invocations of builtins may return failure objects
   // instead of a proper result. The builtin entry handles
   // this by performing a garbage collection and retrying the
   // builtin once.
 
   // Enter the exit frame that transitions from JavaScript to C++.
-  __ EnterExitFrame(mode_, result_size_);
+  __ EnterExitFrame(result_size_);
 
   // rax: Holds the context at this point, but should not be used.
   //      On entry to code generated by GenerateCore, it must hold
   //      a failure result if the collect_garbage argument to GenerateCore
   //      is true.  This failure result can be the result of code
   //      generated by a previous call to GenerateCore.  The value
   //      of rax is then passed to Runtime::PerformGC.
   // rbx: pointer to builtin function  (C callee-saved).
   // rbp: frame pointer of exit frame  (restored after C call).
   // rsp: stack pointer (restored after C call).
@@ skipping 1272 matching lines @@
   // tagged as a small integer.
   __ bind(&runtime);
   __ TailCallRuntime(Runtime::kStringCompare, 2, 1);
 }
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64