// Copyright 2012 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #if V8_TARGET_ARCH_X64 #include "src/debug/debug.h" #include "src/codegen/assembler.h" #include "src/codegen/macro-assembler.h" #include "src/debug/liveedit.h" #include "src/execution/frames-inl.h" #include "src/objects/objects-inl.h" namespace v8 { namespace internal { #define __ ACCESS_MASM(masm) void DebugCodegen::GenerateHandleDebuggerStatement(MacroAssembler* masm) { { FrameScope scope(masm, StackFrame::INTERNAL); __ CallRuntime(Runtime::kHandleDebuggerStatement, 0); } __ MaybeDropFrames(); // Return to caller. __ ret(0); } void DebugCodegen::GenerateFrameDropperTrampoline(MacroAssembler* masm) { // Frame is being dropped: // - Drop to the target frame specified by rbx. // - Look up current function on the frame. // - Leave the frame. // - Restart the frame by calling the function. __ movq(rbp, rbx); __ movq(rdi, Operand(rbp, StandardFrameConstants::kFunctionOffset)); __ leave(); __ LoadTaggedPointerField( rbx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); __ movzxwq( rbx, FieldOperand(rbx, SharedFunctionInfo::kFormalParameterCountOffset)); __ InvokeFunction(rdi, no_reg, rbx, rbx, JUMP_FUNCTION); } const bool LiveEdit::kFrameDropperSupported = true; #undef __ } // namespace internal } // namespace v8 #endif // V8_TARGET_ARCH_X64