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.
4
5 #ifndef V8_FRAMES_INL_H_
6 #define V8_FRAMES_INL_H_
7
8 #include "src/frames.h"
9 #include "src/isolate.h"
10 #include "src/objects-inl.h"
11 #include "src/v8memory.h"
12
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_S390
28 #include "src/s390/frames-s390.h" // NOLINT
29 #elif V8_TARGET_ARCH_X87
30 #include "src/x87/frames-x87.h" // NOLINT
31 #else
32 #error Unsupported target architecture.
33 #endif
34
35 namespace v8 {
36 namespace internal {
37
38
address()39 inline Address StackHandler::address() const {
40 return reinterpret_cast<Address>(const_cast<StackHandler*>(this));
41 }
42
43
next()44 inline StackHandler* StackHandler::next() const {
45 const int offset = StackHandlerConstants::kNextOffset;
46 return FromAddress(Memory::Address_at(address() + offset));
47 }
48
49
FromAddress(Address address)50 inline StackHandler* StackHandler::FromAddress(Address address) {
51 return reinterpret_cast<StackHandler*>(address);
52 }
53
54
StackFrame(StackFrameIteratorBase * iterator)55 inline StackFrame::StackFrame(StackFrameIteratorBase* iterator)
56 : iterator_(iterator), isolate_(iterator_->isolate()) {
57 }
58
59
top_handler()60 inline StackHandler* StackFrame::top_handler() const {
61 return iterator_->handler();
62 }
63
64
LookupCode()65 inline Code* StackFrame::LookupCode() const {
66 // TODO(jgruber): This should really check that pc is within the returned
67 // code's instruction range [instruction_start(), instruction_end()[.
68 return GetContainingCode(isolate(), pc());
69 }
70
71
GetContainingCode(Isolate * isolate,Address pc)72 inline Code* StackFrame::GetContainingCode(Isolate* isolate, Address pc) {
73 return isolate->inner_pointer_to_code_cache()->GetCacheEntry(pc)->code;
74 }
75
76
ResolveReturnAddressLocation(Address * pc_address)77 inline Address* StackFrame::ResolveReturnAddressLocation(Address* pc_address) {
78 if (return_address_location_resolver_ == NULL) {
79 return pc_address;
80 } else {
81 return reinterpret_cast<Address*>(
82 return_address_location_resolver_(
83 reinterpret_cast<uintptr_t>(pc_address)));
84 }
85 }
86
87
EntryFrame(StackFrameIteratorBase * iterator)88 inline EntryFrame::EntryFrame(StackFrameIteratorBase* iterator)
89 : StackFrame(iterator) {
90 }
91
92
EntryConstructFrame(StackFrameIteratorBase * iterator)93 inline EntryConstructFrame::EntryConstructFrame(
94 StackFrameIteratorBase* iterator)
95 : EntryFrame(iterator) {
96 }
97
98
ExitFrame(StackFrameIteratorBase * iterator)99 inline ExitFrame::ExitFrame(StackFrameIteratorBase* iterator)
100 : StackFrame(iterator) {
101 }
102
BuiltinExitFrame(StackFrameIteratorBase * iterator)103 inline BuiltinExitFrame::BuiltinExitFrame(StackFrameIteratorBase* iterator)
104 : ExitFrame(iterator) {}
105
receiver_slot_object()106 inline Object* BuiltinExitFrame::receiver_slot_object() const {
107 // The receiver is the first argument on the frame.
108 // fp[1]: return address.
109 // fp[2]: the last argument (new target).
110 // fp[4]: argc.
111 // fp[2 + argc - 1]: receiver.
112 Object* argc_slot = argc_slot_object();
113 DCHECK(argc_slot->IsSmi());
114 int argc = Smi::cast(argc_slot)->value();
115
116 const int receiverOffset =
117 BuiltinExitFrameConstants::kNewTargetOffset + (argc - 1) * kPointerSize;
118 return Memory::Object_at(fp() + receiverOffset);
119 }
120
argc_slot_object()121 inline Object* BuiltinExitFrame::argc_slot_object() const {
122 return Memory::Object_at(fp() + BuiltinExitFrameConstants::kArgcOffset);
123 }
124
target_slot_object()125 inline Object* BuiltinExitFrame::target_slot_object() const {
126 return Memory::Object_at(fp() + BuiltinExitFrameConstants::kTargetOffset);
127 }
128
new_target_slot_object()129 inline Object* BuiltinExitFrame::new_target_slot_object() const {
130 return Memory::Object_at(fp() + BuiltinExitFrameConstants::kNewTargetOffset);
131 }
132
StandardFrame(StackFrameIteratorBase * iterator)133 inline StandardFrame::StandardFrame(StackFrameIteratorBase* iterator)
134 : StackFrame(iterator) {
135 }
136
137
GetExpression(int index)138 inline Object* StandardFrame::GetExpression(int index) const {
139 return Memory::Object_at(GetExpressionAddress(index));
140 }
141
142
SetExpression(int index,Object * value)143 inline void StandardFrame::SetExpression(int index, Object* value) {
144 Memory::Object_at(GetExpressionAddress(index)) = value;
145 }
146
147
caller_fp()148 inline Address StandardFrame::caller_fp() const {
149 return Memory::Address_at(fp() + StandardFrameConstants::kCallerFPOffset);
150 }
151
152
caller_pc()153 inline Address StandardFrame::caller_pc() const {
154 return Memory::Address_at(ComputePCAddress(fp()));
155 }
156
157
ComputePCAddress(Address fp)158 inline Address StandardFrame::ComputePCAddress(Address fp) {
159 return fp + StandardFrameConstants::kCallerPCOffset;
160 }
161
162
ComputeConstantPoolAddress(Address fp)163 inline Address StandardFrame::ComputeConstantPoolAddress(Address fp) {
164 return fp + StandardFrameConstants::kConstantPoolOffset;
165 }
166
167
IsArgumentsAdaptorFrame(Address fp)168 inline bool StandardFrame::IsArgumentsAdaptorFrame(Address fp) {
169 Object* frame_type =
170 Memory::Object_at(fp + TypedFrameConstants::kFrameTypeOffset);
171 return frame_type == Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR);
172 }
173
174
IsConstructFrame(Address fp)175 inline bool StandardFrame::IsConstructFrame(Address fp) {
176 Object* frame_type =
177 Memory::Object_at(fp + TypedFrameConstants::kFrameTypeOffset);
178 return frame_type == Smi::FromInt(StackFrame::CONSTRUCT);
179 }
180
JavaScriptFrame(StackFrameIteratorBase * iterator)181 inline JavaScriptFrame::JavaScriptFrame(StackFrameIteratorBase* iterator)
182 : StandardFrame(iterator) {}
183
GetParameterSlot(int index)184 Address JavaScriptFrame::GetParameterSlot(int index) const {
185 int param_count = ComputeParametersCount();
186 DCHECK(-1 <= index && index < param_count);
187 int parameter_offset = (param_count - index - 1) * kPointerSize;
188 return caller_sp() + parameter_offset;
189 }
190
GetOperandSlot(int index)191 inline Address JavaScriptFrame::GetOperandSlot(int index) const {
192 Address base = fp() + JavaScriptFrameConstants::kLocal0Offset;
193 DCHECK(IsAddressAligned(base, kPointerSize));
194 DCHECK_EQ(type(), JAVA_SCRIPT);
195 DCHECK_LT(index, ComputeOperandsCount());
196 DCHECK_LE(0, index);
197 // Operand stack grows down.
198 return base - index * kPointerSize;
199 }
200
201
GetOperand(int index)202 inline Object* JavaScriptFrame::GetOperand(int index) const {
203 return Memory::Object_at(GetOperandSlot(index));
204 }
205
206
ComputeOperandsCount()207 inline int JavaScriptFrame::ComputeOperandsCount() const {
208 Address base = fp() + JavaScriptFrameConstants::kLocal0Offset;
209 // Base points to low address of first operand and stack grows down, so add
210 // kPointerSize to get the actual stack size.
211 intptr_t stack_size_in_bytes = (base + kPointerSize) - sp();
212 DCHECK(IsAligned(stack_size_in_bytes, kPointerSize));
213 DCHECK(type() == JAVA_SCRIPT);
214 DCHECK(stack_size_in_bytes >= 0);
215 return static_cast<int>(stack_size_in_bytes >> kPointerSizeLog2);
216 }
217
218
set_receiver(Object * value)219 inline void JavaScriptFrame::set_receiver(Object* value) {
220 Memory::Object_at(GetParameterSlot(-1)) = value;
221 }
222
223
has_adapted_arguments()224 inline bool JavaScriptFrame::has_adapted_arguments() const {
225 return IsArgumentsAdaptorFrame(caller_fp());
226 }
227
228
function_slot_object()229 inline Object* JavaScriptFrame::function_slot_object() const {
230 const int offset = JavaScriptFrameConstants::kFunctionOffset;
231 return Memory::Object_at(fp() + offset);
232 }
233
StubFrame(StackFrameIteratorBase * iterator)234 inline StubFrame::StubFrame(StackFrameIteratorBase* iterator)
235 : StandardFrame(iterator) {
236 }
237
238
OptimizedFrame(StackFrameIteratorBase * iterator)239 inline OptimizedFrame::OptimizedFrame(StackFrameIteratorBase* iterator)
240 : JavaScriptFrame(iterator) {
241 }
242
243
InterpretedFrame(StackFrameIteratorBase * iterator)244 inline InterpretedFrame::InterpretedFrame(StackFrameIteratorBase* iterator)
245 : JavaScriptFrame(iterator) {}
246
247
ArgumentsAdaptorFrame(StackFrameIteratorBase * iterator)248 inline ArgumentsAdaptorFrame::ArgumentsAdaptorFrame(
249 StackFrameIteratorBase* iterator) : JavaScriptFrame(iterator) {
250 }
251
BuiltinFrame(StackFrameIteratorBase * iterator)252 inline BuiltinFrame::BuiltinFrame(StackFrameIteratorBase* iterator)
253 : JavaScriptFrame(iterator) {}
254
WasmFrame(StackFrameIteratorBase * iterator)255 inline WasmFrame::WasmFrame(StackFrameIteratorBase* iterator)
256 : StandardFrame(iterator) {}
257
WasmToJsFrame(StackFrameIteratorBase * iterator)258 inline WasmToJsFrame::WasmToJsFrame(StackFrameIteratorBase* iterator)
259 : StubFrame(iterator) {}
260
JsToWasmFrame(StackFrameIteratorBase * iterator)261 inline JsToWasmFrame::JsToWasmFrame(StackFrameIteratorBase* iterator)
262 : StubFrame(iterator) {}
263
InternalFrame(StackFrameIteratorBase * iterator)264 inline InternalFrame::InternalFrame(StackFrameIteratorBase* iterator)
265 : StandardFrame(iterator) {
266 }
267
268
StubFailureTrampolineFrame(StackFrameIteratorBase * iterator)269 inline StubFailureTrampolineFrame::StubFailureTrampolineFrame(
270 StackFrameIteratorBase* iterator) : StandardFrame(iterator) {
271 }
272
273
ConstructFrame(StackFrameIteratorBase * iterator)274 inline ConstructFrame::ConstructFrame(StackFrameIteratorBase* iterator)
275 : InternalFrame(iterator) {
276 }
277
JavaScriptFrameIterator(Isolate * isolate)278 inline JavaScriptFrameIterator::JavaScriptFrameIterator(
279 Isolate* isolate)
280 : iterator_(isolate) {
281 if (!done()) Advance();
282 }
283
JavaScriptFrameIterator(Isolate * isolate,ThreadLocalTop * top)284 inline JavaScriptFrameIterator::JavaScriptFrameIterator(
285 Isolate* isolate, ThreadLocalTop* top)
286 : iterator_(isolate, top) {
287 if (!done()) Advance();
288 }
289
frame()290 inline JavaScriptFrame* JavaScriptFrameIterator::frame() const {
291 // TODO(1233797): The frame hierarchy needs to change. It's
292 // problematic that we can't use the safe-cast operator to cast to
293 // the JavaScript frame type, because we may encounter arguments
294 // adaptor frames.
295 StackFrame* frame = iterator_.frame();
296 DCHECK(frame->is_java_script() || frame->is_arguments_adaptor());
297 return static_cast<JavaScriptFrame*>(frame);
298 }
299
frame()300 inline StandardFrame* StackTraceFrameIterator::frame() const {
301 StackFrame* frame = iterator_.frame();
302 DCHECK(frame->is_java_script() || frame->is_arguments_adaptor() ||
303 frame->is_wasm());
304 return static_cast<StandardFrame*>(frame);
305 }
306
is_javascript()307 bool StackTraceFrameIterator::is_javascript() const {
308 return frame()->is_java_script();
309 }
310
is_wasm()311 bool StackTraceFrameIterator::is_wasm() const { return frame()->is_wasm(); }
312
javascript_frame()313 JavaScriptFrame* StackTraceFrameIterator::javascript_frame() const {
314 DCHECK(is_javascript());
315 return static_cast<JavaScriptFrame*>(frame());
316 }
317
wasm_frame()318 WasmFrame* StackTraceFrameIterator::wasm_frame() const {
319 DCHECK(is_wasm());
320 return static_cast<WasmFrame*>(frame());
321 }
322
frame()323 inline StackFrame* SafeStackFrameIterator::frame() const {
324 DCHECK(!done());
325 DCHECK(frame_->is_java_script() || frame_->is_exit() ||
326 frame_->is_builtin_exit());
327 return frame_;
328 }
329
330
331 } // namespace internal
332 } // namespace v8
333
334 #endif // V8_FRAMES_INL_H_
335