1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef V8_FRAMES_INL_H_
6 #define V8_FRAMES_INL_H_
8 #include "src/frames.h"
9 #include "src/isolate.h"
10 #include "src/objects-inl.h"
11 #include "src/v8memory.h"
13 #if V8_TARGET_ARCH_IA32
14 #include "src/ia32/frames-ia32.h" // NOLINT
15 #elif V8_TARGET_ARCH_X64
16 #include "src/x64/frames-x64.h" // NOLINT
17 #elif V8_TARGET_ARCH_ARM64
18 #include "src/arm64/frames-arm64.h" // NOLINT
19 #elif V8_TARGET_ARCH_ARM
20 #include "src/arm/frames-arm.h" // NOLINT
21 #elif V8_TARGET_ARCH_PPC
22 #include "src/ppc/frames-ppc.h" // NOLINT
23 #elif V8_TARGET_ARCH_MIPS
24 #include "src/mips/frames-mips.h" // NOLINT
25 #elif V8_TARGET_ARCH_MIPS64
26 #include "src/mips64/frames-mips64.h" // NOLINT
27 #elif V8_TARGET_ARCH_X87
28 #include "src/x87/frames-x87.h" // NOLINT
30 #error Unsupported target architecture.
37 inline Address StackHandler::address() const {
38 return reinterpret_cast<Address>(const_cast<StackHandler*>(this));
42 inline StackHandler* StackHandler::next() const {
43 const int offset = StackHandlerConstants::kNextOffset;
44 return FromAddress(Memory::Address_at(address() + offset));
48 inline StackHandler* StackHandler::FromAddress(Address address) {
49 return reinterpret_cast<StackHandler*>(address);
53 inline StackFrame::StackFrame(StackFrameIteratorBase* iterator)
54 : iterator_(iterator), isolate_(iterator_->isolate()) {
58 inline StackHandler* StackFrame::top_handler() const {
59 return iterator_->handler();
63 inline Code* StackFrame::LookupCode() const {
64 return GetContainingCode(isolate(), pc());
68 inline Code* StackFrame::GetContainingCode(Isolate* isolate, Address pc) {
69 return isolate->inner_pointer_to_code_cache()->GetCacheEntry(pc)->code;
73 inline Address* StackFrame::ResolveReturnAddressLocation(Address* pc_address) {
74 if (return_address_location_resolver_ == NULL) {
77 return reinterpret_cast<Address*>(
78 return_address_location_resolver_(
79 reinterpret_cast<uintptr_t>(pc_address)));
84 inline EntryFrame::EntryFrame(StackFrameIteratorBase* iterator)
85 : StackFrame(iterator) {
89 inline EntryConstructFrame::EntryConstructFrame(
90 StackFrameIteratorBase* iterator)
91 : EntryFrame(iterator) {
95 inline ExitFrame::ExitFrame(StackFrameIteratorBase* iterator)
96 : StackFrame(iterator) {
100 inline StandardFrame::StandardFrame(StackFrameIteratorBase* iterator)
101 : StackFrame(iterator) {
105 inline Object* StandardFrame::GetExpression(int index) const {
106 return Memory::Object_at(GetExpressionAddress(index));
110 inline void StandardFrame::SetExpression(int index, Object* value) {
111 Memory::Object_at(GetExpressionAddress(index)) = value;
115 inline Object* StandardFrame::context() const {
116 const int offset = StandardFrameConstants::kContextOffset;
117 return Memory::Object_at(fp() + offset);
121 inline Address StandardFrame::caller_fp() const {
122 return Memory::Address_at(fp() + StandardFrameConstants::kCallerFPOffset);
126 inline Address StandardFrame::caller_pc() const {
127 return Memory::Address_at(ComputePCAddress(fp()));
131 inline Address StandardFrame::ComputePCAddress(Address fp) {
132 return fp + StandardFrameConstants::kCallerPCOffset;
136 inline Address StandardFrame::ComputeConstantPoolAddress(Address fp) {
137 return fp + StandardFrameConstants::kConstantPoolOffset;
141 inline bool StandardFrame::IsArgumentsAdaptorFrame(Address fp) {
143 Memory::Object_at(fp + StandardFrameConstants::kContextOffset);
144 return marker == Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR);
148 inline bool StandardFrame::IsConstructFrame(Address fp) {
150 Memory::Object_at(fp + StandardFrameConstants::kMarkerOffset);
151 return marker == Smi::FromInt(StackFrame::CONSTRUCT);
155 inline JavaScriptFrame::JavaScriptFrame(StackFrameIteratorBase* iterator)
156 : StandardFrame(iterator) {
160 Address JavaScriptFrame::GetParameterSlot(int index) const {
161 int param_count = ComputeParametersCount();
162 DCHECK(-1 <= index && index < param_count);
163 int parameter_offset = (param_count - index - 1) * kPointerSize;
164 return caller_sp() + parameter_offset;
168 Object* JavaScriptFrame::GetParameter(int index) const {
169 return Memory::Object_at(GetParameterSlot(index));
173 inline Address JavaScriptFrame::GetOperandSlot(int index) const {
174 Address base = fp() + JavaScriptFrameConstants::kLocal0Offset;
175 DCHECK(IsAddressAligned(base, kPointerSize));
176 DCHECK_EQ(type(), JAVA_SCRIPT);
177 DCHECK_LT(index, ComputeOperandsCount());
179 // Operand stack grows down.
180 return base - index * kPointerSize;
184 inline Object* JavaScriptFrame::GetOperand(int index) const {
185 return Memory::Object_at(GetOperandSlot(index));
189 inline int JavaScriptFrame::ComputeOperandsCount() const {
190 Address base = fp() + JavaScriptFrameConstants::kLocal0Offset;
191 // Base points to low address of first operand and stack grows down, so add
192 // kPointerSize to get the actual stack size.
193 intptr_t stack_size_in_bytes = (base + kPointerSize) - sp();
194 DCHECK(IsAligned(stack_size_in_bytes, kPointerSize));
195 DCHECK(type() == JAVA_SCRIPT);
196 DCHECK(stack_size_in_bytes >= 0);
197 return static_cast<int>(stack_size_in_bytes >> kPointerSizeLog2);
201 inline Object* JavaScriptFrame::receiver() const {
202 return GetParameter(-1);
206 inline void JavaScriptFrame::set_receiver(Object* value) {
207 Memory::Object_at(GetParameterSlot(-1)) = value;
211 inline bool JavaScriptFrame::has_adapted_arguments() const {
212 return IsArgumentsAdaptorFrame(caller_fp());
216 inline JSFunction* JavaScriptFrame::function() const {
217 return JSFunction::cast(function_slot_object());
221 inline Object* JavaScriptFrame::function_slot_object() const {
222 const int offset = JavaScriptFrameConstants::kFunctionOffset;
223 return Memory::Object_at(fp() + offset);
227 inline StubFrame::StubFrame(StackFrameIteratorBase* iterator)
228 : StandardFrame(iterator) {
232 inline OptimizedFrame::OptimizedFrame(StackFrameIteratorBase* iterator)
233 : JavaScriptFrame(iterator) {
237 inline ArgumentsAdaptorFrame::ArgumentsAdaptorFrame(
238 StackFrameIteratorBase* iterator) : JavaScriptFrame(iterator) {
242 inline InternalFrame::InternalFrame(StackFrameIteratorBase* iterator)
243 : StandardFrame(iterator) {
247 inline StubFailureTrampolineFrame::StubFailureTrampolineFrame(
248 StackFrameIteratorBase* iterator) : StandardFrame(iterator) {
252 inline ConstructFrame::ConstructFrame(StackFrameIteratorBase* iterator)
253 : InternalFrame(iterator) {
257 inline JavaScriptFrameIterator::JavaScriptFrameIterator(
259 : iterator_(isolate) {
260 if (!done()) Advance();
264 inline JavaScriptFrameIterator::JavaScriptFrameIterator(
265 Isolate* isolate, ThreadLocalTop* top)
266 : iterator_(isolate, top) {
267 if (!done()) Advance();
271 inline JavaScriptFrame* JavaScriptFrameIterator::frame() const {
272 // TODO(1233797): The frame hierarchy needs to change. It's
273 // problematic that we can't use the safe-cast operator to cast to
274 // the JavaScript frame type, because we may encounter arguments
276 StackFrame* frame = iterator_.frame();
277 DCHECK(frame->is_java_script() || frame->is_arguments_adaptor());
278 return static_cast<JavaScriptFrame*>(frame);
282 inline StackFrame* SafeStackFrameIterator::frame() const {
284 DCHECK(frame_->is_java_script() || frame_->is_exit());
289 } // namespace internal
292 #endif // V8_FRAMES_INL_H_