Patch CEntry stub to swallow exception if liveedit/restart frame needs it.

src/x64/code-stubs-x64.cc

Index: src/x64/code-stubs-x64.cc
diff --git a/src/x64/code-stubs-x64.cc b/src/x64/code-stubs-x64.cc
index ad33a8c6319b7a0a5919b7be75458068a1d1f929..636a390ff0a5f66af434e9b16e44632f52e5384d 100644
--- a/src/x64/code-stubs-x64.cc
+++ b/src/x64/code-stubs-x64.cc
@@ -4004,6 +4004,31 @@ void CEntryStub::Generate(MacroAssembler* masm) {
   __ ThrowUncatchable(rax);
 
   __ bind(&throw_normal_exception);
+
+#ifdef ENABLE_DEBUGGER_SUPPORT
+  Label proceed_throwing;
+  ExternalReference c_entry_frame_to_ignore_exception =
+      ExternalReference(Debug_Address::CEntryFrameToIgnoreException(),
+          masm->isolate());
+
+  __ xor_(rcx, rcx);
+
+  Operand c_entry_frame_to_ignore_exception_operand =
+      masm->ExternalOperand(c_entry_frame_to_ignore_exception);
+  __ movq(rdx, c_entry_frame_to_ignore_exception_operand);
+
+  __ Store(c_entry_frame_to_ignore_exception, rcx);
+
+  __ cmpq(rbp, rdx);

[Yang, 2013/09/13 09:47:56]

Similar to ia32.

[Peter.Rybin, 2013/09/19 15:35:31]

Done.

+
+  __ j(not_equal, &proceed_throwing);
+
+  __ LeaveExitFrame(save_doubles_);
+  __ ret(0);
+
+  __ bind(&proceed_throwing);
+#endif  // ENABLE_DEBUGGER_SUPPORT
+
   __ Throw(rax);
 }