| // 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. |
| |
| #ifndef V8_FRAMES_INL_H_ |
| #define V8_FRAMES_INL_H_ |
| |
| #include "src/frames.h" |
| #include "src/isolate.h" |
| #include "src/v8memory.h" |
| |
| #if V8_TARGET_ARCH_IA32 |
| #include "src/ia32/frames-ia32.h" // NOLINT |
| #elif V8_TARGET_ARCH_X64 |
| #include "src/x64/frames-x64.h" // NOLINT |
| #elif V8_TARGET_ARCH_ARM64 |
| #include "src/arm64/frames-arm64.h" // NOLINT |
| #elif V8_TARGET_ARCH_ARM |
| #include "src/arm/frames-arm.h" // NOLINT |
| #elif V8_TARGET_ARCH_MIPS |
| #include "src/mips/frames-mips.h" // NOLINT |
| #elif V8_TARGET_ARCH_MIPS64 |
| #include "src/mips64/frames-mips64.h" // NOLINT |
| #elif V8_TARGET_ARCH_X87 |
| #include "src/x87/frames-x87.h" // NOLINT |
| #else |
| #error Unsupported target architecture. |
| #endif |
| |
| namespace v8 { |
| namespace internal { |
| |
| |
| inline Address StackHandler::address() const { |
| return reinterpret_cast<Address>(const_cast<StackHandler*>(this)); |
| } |
| |
| |
| inline StackHandler* StackHandler::next() const { |
| const int offset = StackHandlerConstants::kNextOffset; |
| return FromAddress(Memory::Address_at(address() + offset)); |
| } |
| |
| |
| inline bool StackHandler::includes(Address address) const { |
| Address start = this->address(); |
| Address end = start + StackHandlerConstants::kSize; |
| return start <= address && address <= end; |
| } |
| |
| |
| inline void StackHandler::Iterate(ObjectVisitor* v, Code* holder) const { |
| v->VisitPointer(context_address()); |
| v->VisitPointer(code_address()); |
| } |
| |
| |
| inline StackHandler* StackHandler::FromAddress(Address address) { |
| return reinterpret_cast<StackHandler*>(address); |
| } |
| |
| |
| inline bool StackHandler::is_js_entry() const { |
| return kind() == JS_ENTRY; |
| } |
| |
| |
| inline bool StackHandler::is_catch() const { |
| return kind() == CATCH; |
| } |
| |
| |
| inline bool StackHandler::is_finally() const { |
| return kind() == FINALLY; |
| } |
| |
| |
| inline StackHandler::Kind StackHandler::kind() const { |
| const int offset = StackHandlerConstants::kStateOffset; |
| return KindField::decode(Memory::unsigned_at(address() + offset)); |
| } |
| |
| |
| inline unsigned StackHandler::index() const { |
| const int offset = StackHandlerConstants::kStateOffset; |
| return IndexField::decode(Memory::unsigned_at(address() + offset)); |
| } |
| |
| |
| inline Object** StackHandler::context_address() const { |
| const int offset = StackHandlerConstants::kContextOffset; |
| return reinterpret_cast<Object**>(address() + offset); |
| } |
| |
| |
| inline Object** StackHandler::code_address() const { |
| const int offset = StackHandlerConstants::kCodeOffset; |
| return reinterpret_cast<Object**>(address() + offset); |
| } |
| |
| |
| inline StackFrame::StackFrame(StackFrameIteratorBase* iterator) |
| : iterator_(iterator), isolate_(iterator_->isolate()) { |
| } |
| |
| |
| inline StackHandler* StackFrame::top_handler() const { |
| return iterator_->handler(); |
| } |
| |
| |
| inline Code* StackFrame::LookupCode() const { |
| return GetContainingCode(isolate(), pc()); |
| } |
| |
| |
| inline Code* StackFrame::GetContainingCode(Isolate* isolate, Address pc) { |
| return isolate->inner_pointer_to_code_cache()->GetCacheEntry(pc)->code; |
| } |
| |
| |
| inline Address* StackFrame::ResolveReturnAddressLocation(Address* pc_address) { |
| if (return_address_location_resolver_ == NULL) { |
| return pc_address; |
| } else { |
| return reinterpret_cast<Address*>( |
| return_address_location_resolver_( |
| reinterpret_cast<uintptr_t>(pc_address))); |
| } |
| } |
| |
| |
| inline EntryFrame::EntryFrame(StackFrameIteratorBase* iterator) |
| : StackFrame(iterator) { |
| } |
| |
| |
| inline EntryConstructFrame::EntryConstructFrame( |
| StackFrameIteratorBase* iterator) |
| : EntryFrame(iterator) { |
| } |
| |
| |
| inline ExitFrame::ExitFrame(StackFrameIteratorBase* iterator) |
| : StackFrame(iterator) { |
| } |
| |
| |
| inline StandardFrame::StandardFrame(StackFrameIteratorBase* iterator) |
| : StackFrame(iterator) { |
| } |
| |
| |
| inline Object* StandardFrame::GetExpression(int index) const { |
| return Memory::Object_at(GetExpressionAddress(index)); |
| } |
| |
| |
| inline void StandardFrame::SetExpression(int index, Object* value) { |
| Memory::Object_at(GetExpressionAddress(index)) = value; |
| } |
| |
| |
| inline Object* StandardFrame::context() const { |
| const int offset = StandardFrameConstants::kContextOffset; |
| return Memory::Object_at(fp() + offset); |
| } |
| |
| |
| inline Address StandardFrame::caller_fp() const { |
| return Memory::Address_at(fp() + StandardFrameConstants::kCallerFPOffset); |
| } |
| |
| |
| inline Address StandardFrame::caller_pc() const { |
| return Memory::Address_at(ComputePCAddress(fp())); |
| } |
| |
| |
| inline Address StandardFrame::ComputePCAddress(Address fp) { |
| return fp + StandardFrameConstants::kCallerPCOffset; |
| } |
| |
| |
| inline Address StandardFrame::ComputeConstantPoolAddress(Address fp) { |
| return fp + StandardFrameConstants::kConstantPoolOffset; |
| } |
| |
| |
| inline bool StandardFrame::IsArgumentsAdaptorFrame(Address fp) { |
| Object* marker = |
| Memory::Object_at(fp + StandardFrameConstants::kContextOffset); |
| return marker == Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR); |
| } |
| |
| |
| inline bool StandardFrame::IsConstructFrame(Address fp) { |
| Object* marker = |
| Memory::Object_at(fp + StandardFrameConstants::kMarkerOffset); |
| return marker == Smi::FromInt(StackFrame::CONSTRUCT); |
| } |
| |
| |
| inline JavaScriptFrame::JavaScriptFrame(StackFrameIteratorBase* iterator) |
| : StandardFrame(iterator) { |
| } |
| |
| |
| Address JavaScriptFrame::GetParameterSlot(int index) const { |
| int param_count = ComputeParametersCount(); |
| DCHECK(-1 <= index && index < param_count); |
| int parameter_offset = (param_count - index - 1) * kPointerSize; |
| return caller_sp() + parameter_offset; |
| } |
| |
| |
| Object* JavaScriptFrame::GetParameter(int index) const { |
| return Memory::Object_at(GetParameterSlot(index)); |
| } |
| |
| |
| inline Address JavaScriptFrame::GetOperandSlot(int index) const { |
| Address base = fp() + JavaScriptFrameConstants::kLocal0Offset; |
| DCHECK(IsAddressAligned(base, kPointerSize)); |
| DCHECK_EQ(type(), JAVA_SCRIPT); |
| DCHECK_LT(index, ComputeOperandsCount()); |
| DCHECK_LE(0, index); |
| // Operand stack grows down. |
| return base - index * kPointerSize; |
| } |
| |
| |
| inline Object* JavaScriptFrame::GetOperand(int index) const { |
| return Memory::Object_at(GetOperandSlot(index)); |
| } |
| |
| |
| inline int JavaScriptFrame::ComputeOperandsCount() const { |
| Address base = fp() + JavaScriptFrameConstants::kLocal0Offset; |
| // Base points to low address of first operand and stack grows down, so add |
| // kPointerSize to get the actual stack size. |
| intptr_t stack_size_in_bytes = (base + kPointerSize) - sp(); |
| DCHECK(IsAligned(stack_size_in_bytes, kPointerSize)); |
| DCHECK(type() == JAVA_SCRIPT); |
| DCHECK(stack_size_in_bytes >= 0); |
| return static_cast<int>(stack_size_in_bytes >> kPointerSizeLog2); |
| } |
| |
| |
| inline Object* JavaScriptFrame::receiver() const { |
| return GetParameter(-1); |
| } |
| |
| |
| inline void JavaScriptFrame::set_receiver(Object* value) { |
| Memory::Object_at(GetParameterSlot(-1)) = value; |
| } |
| |
| |
| inline bool JavaScriptFrame::has_adapted_arguments() const { |
| return IsArgumentsAdaptorFrame(caller_fp()); |
| } |
| |
| |
| inline JSFunction* JavaScriptFrame::function() const { |
| return JSFunction::cast(function_slot_object()); |
| } |
| |
| |
| inline StubFrame::StubFrame(StackFrameIteratorBase* iterator) |
| : StandardFrame(iterator) { |
| } |
| |
| |
| inline OptimizedFrame::OptimizedFrame(StackFrameIteratorBase* iterator) |
| : JavaScriptFrame(iterator) { |
| } |
| |
| |
| inline ArgumentsAdaptorFrame::ArgumentsAdaptorFrame( |
| StackFrameIteratorBase* iterator) : JavaScriptFrame(iterator) { |
| } |
| |
| |
| inline InternalFrame::InternalFrame(StackFrameIteratorBase* iterator) |
| : StandardFrame(iterator) { |
| } |
| |
| |
| inline StubFailureTrampolineFrame::StubFailureTrampolineFrame( |
| StackFrameIteratorBase* iterator) : StandardFrame(iterator) { |
| } |
| |
| |
| inline ConstructFrame::ConstructFrame(StackFrameIteratorBase* iterator) |
| : InternalFrame(iterator) { |
| } |
| |
| |
| inline JavaScriptFrameIterator::JavaScriptFrameIterator( |
| Isolate* isolate) |
| : iterator_(isolate) { |
| if (!done()) Advance(); |
| } |
| |
| |
| inline JavaScriptFrameIterator::JavaScriptFrameIterator( |
| Isolate* isolate, ThreadLocalTop* top) |
| : iterator_(isolate, top) { |
| if (!done()) Advance(); |
| } |
| |
| |
| inline JavaScriptFrame* JavaScriptFrameIterator::frame() const { |
| // TODO(1233797): The frame hierarchy needs to change. It's |
| // problematic that we can't use the safe-cast operator to cast to |
| // the JavaScript frame type, because we may encounter arguments |
| // adaptor frames. |
| StackFrame* frame = iterator_.frame(); |
| DCHECK(frame->is_java_script() || frame->is_arguments_adaptor()); |
| return static_cast<JavaScriptFrame*>(frame); |
| } |
| |
| |
| inline StackFrame* SafeStackFrameIterator::frame() const { |
| DCHECK(!done()); |
| DCHECK(frame_->is_java_script() || frame_->is_exit()); |
| return frame_; |
| } |
| |
| |
| } } // namespace v8::internal |
| |
| #endif // V8_FRAMES_INL_H_ |