deps: update V8 to 6.2.414.32

PR-URL: https://github.com/nodejs/node/pull/15362
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

1 files changed, 2 insertions, 81 deletions

diff --git a/deps/v8/src/debug/x64/debug-x64.cc b/deps/v8/src/debug/x64/debug-x64.cc
index 3167b245bf..8432f43c19 100644
--- a/deps/v8/src/debug/x64/debug-x64.cc
+++ b/deps/v8/src/debug/x64/debug-x64.cc
@@ -9,6 +9,7 @@
 #include "src/assembler.h"
 #include "src/codegen.h"
 #include "src/debug/liveedit.h"
+#include "src/frames-inl.h"
 #include "src/objects-inl.h"
 
 namespace v8 {
@@ -16,85 +17,6 @@ namespace internal {
 
 #define __ ACCESS_MASM(masm)
 
-
-void EmitDebugBreakSlot(MacroAssembler* masm) {
-  Label check_codesize;
-  __ bind(&check_codesize);
-  __ Nop(Assembler::kDebugBreakSlotLength);
-  DCHECK_EQ(Assembler::kDebugBreakSlotLength,
-            masm->SizeOfCodeGeneratedSince(&check_codesize));
-}
-
-
-void DebugCodegen::GenerateSlot(MacroAssembler* masm, RelocInfo::Mode mode) {
-  // Generate enough nop's to make space for a call instruction.
-  masm->RecordDebugBreakSlot(mode);
-  EmitDebugBreakSlot(masm);
-}
-
-
-void DebugCodegen::ClearDebugBreakSlot(Isolate* isolate, Address pc) {
-  CodePatcher patcher(isolate, pc, Assembler::kDebugBreakSlotLength);
-  EmitDebugBreakSlot(patcher.masm());
-}
-
-
-void DebugCodegen::PatchDebugBreakSlot(Isolate* isolate, Address pc,
-                                       Handle<Code> code) {
-  DCHECK(code->is_debug_stub());
-  static const int kSize = Assembler::kDebugBreakSlotLength;
-  CodePatcher patcher(isolate, pc, kSize);
-  Label check_codesize;
-  patcher.masm()->bind(&check_codesize);
-  patcher.masm()->movp(kScratchRegister, reinterpret_cast<void*>(code->entry()),
-                       Assembler::RelocInfoNone());
-  patcher.masm()->call(kScratchRegister);
-  // Check that the size of the code generated is as expected.
-  DCHECK_EQ(kSize, patcher.masm()->SizeOfCodeGeneratedSince(&check_codesize));
-}
-
-bool DebugCodegen::DebugBreakSlotIsPatched(Address pc) {
-  return !Assembler::IsNop(pc);
-}
-
-void DebugCodegen::GenerateDebugBreakStub(MacroAssembler* masm,
-                                          DebugBreakCallHelperMode mode) {
-  __ RecordComment("Debug break");
-
-  // Enter an internal frame.
-  {
-    FrameScope scope(masm, StackFrame::INTERNAL);
-
-    // Push arguments for DebugBreak call.
-    if (mode == SAVE_RESULT_REGISTER) {
-      // Break on return.
-      __ Push(rax);
-    } else {
-      // Non-return breaks.
-      __ Push(masm->isolate()->factory()->the_hole_value());
-    }
-
-    __ CallRuntime(Runtime::kDebugBreak, 1, kDontSaveFPRegs);
-
-    if (FLAG_debug_code) {
-      for (int i = 0; i < kNumJSCallerSaved; ++i) {
-        Register reg = {JSCallerSavedCode(i)};
-        // Do not clobber rax if mode is SAVE_RESULT_REGISTER. It will
-        // contain return value of the function.
-        if (!(reg.is(rax) && (mode == SAVE_RESULT_REGISTER))) {
-          __ Set(reg, kDebugZapValue);
-        }
-      }
-    }
-    // Get rid of the internal frame.
-  }
-
-  __ MaybeDropFrames();
-
-  // Return to caller.
-  __ ret(0);
-}
-
 void DebugCodegen::GenerateHandleDebuggerStatement(MacroAssembler* masm) {
   {
     FrameScope scope(masm, StackFrame::INTERNAL);
@@ -121,8 +43,7 @@ void DebugCodegen::GenerateFrameDropperTrampoline(MacroAssembler* masm) {
       rbx, FieldOperand(rbx, SharedFunctionInfo::kFormalParameterCountOffset));
 
   ParameterCount dummy(rbx);
-  __ InvokeFunction(rdi, no_reg, dummy, dummy, JUMP_FUNCTION,
-                    CheckDebugStepCallWrapper());
+  __ InvokeFunction(rdi, no_reg, dummy, dummy, JUMP_FUNCTION);
 }
 
 const bool LiveEdit::kFrameDropperSupported = true;