1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are
6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided
11 // with the distribution.
12 // * Neither the name of Google Inc. nor the names of its
13 // contributors may be used to endorse or promote products derived
14 // from this software without specific prior written permission.
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 #ifndef V8_FRAMES_INL_H_
29 #define V8_FRAMES_INL_H_
35 #if V8_TARGET_ARCH_IA32
36 #include "ia32/frames-ia32.h"
37 #elif V8_TARGET_ARCH_X64
38 #include "x64/frames-x64.h"
39 #elif V8_TARGET_ARCH_ARM
40 #include "arm/frames-arm.h"
41 #elif V8_TARGET_ARCH_MIPS
42 #include "mips/frames-mips.h"
44 #error Unsupported target architecture.
51 inline Address StackHandler::address() const {
52 return reinterpret_cast<Address>(const_cast<StackHandler*>(this));
56 inline StackHandler* StackHandler::next() const {
57 const int offset = StackHandlerConstants::kNextOffset;
58 return FromAddress(Memory::Address_at(address() + offset));
62 inline bool StackHandler::includes(Address address) const {
63 Address start = this->address();
64 Address end = start + StackHandlerConstants::kSize;
65 return start <= address && address <= end;
69 inline void StackHandler::Iterate(ObjectVisitor* v, Code* holder) const {
70 v->VisitPointer(context_address());
71 v->VisitPointer(code_address());
75 inline StackHandler* StackHandler::FromAddress(Address address) {
76 return reinterpret_cast<StackHandler*>(address);
80 inline bool StackHandler::is_js_entry() const {
81 return kind() == JS_ENTRY;
85 inline bool StackHandler::is_catch() const {
86 return kind() == CATCH;
90 inline bool StackHandler::is_finally() const {
91 return kind() == FINALLY;
95 inline StackHandler::Kind StackHandler::kind() const {
96 const int offset = StackHandlerConstants::kStateOffset;
97 return KindField::decode(Memory::unsigned_at(address() + offset));
101 inline Object** StackHandler::context_address() const {
102 const int offset = StackHandlerConstants::kContextOffset;
103 return reinterpret_cast<Object**>(address() + offset);
107 inline Object** StackHandler::code_address() const {
108 const int offset = StackHandlerConstants::kCodeOffset;
109 return reinterpret_cast<Object**>(address() + offset);
113 inline StackFrame::StackFrame(StackFrameIterator* iterator)
114 : iterator_(iterator), isolate_(iterator_->isolate()) {
118 inline StackHandler* StackFrame::top_handler() const {
119 return iterator_->handler();
123 inline Code* StackFrame::LookupCode() const {
124 return GetContainingCode(isolate(), pc());
128 inline Code* StackFrame::GetContainingCode(Isolate* isolate, Address pc) {
129 return isolate->inner_pointer_to_code_cache()->GetCacheEntry(pc)->code;
133 inline EntryFrame::EntryFrame(StackFrameIterator* iterator)
134 : StackFrame(iterator) {
138 inline EntryConstructFrame::EntryConstructFrame(StackFrameIterator* iterator)
139 : EntryFrame(iterator) {
143 inline ExitFrame::ExitFrame(StackFrameIterator* iterator)
144 : StackFrame(iterator) {
148 inline StandardFrame::StandardFrame(StackFrameIterator* iterator)
149 : StackFrame(iterator) {
153 inline Object* StandardFrame::GetExpression(int index) const {
154 return Memory::Object_at(GetExpressionAddress(index));
158 inline void StandardFrame::SetExpression(int index, Object* value) {
159 Memory::Object_at(GetExpressionAddress(index)) = value;
163 inline Object* StandardFrame::context() const {
164 const int offset = StandardFrameConstants::kContextOffset;
165 return Memory::Object_at(fp() + offset);
169 inline Address StandardFrame::caller_fp() const {
170 return Memory::Address_at(fp() + StandardFrameConstants::kCallerFPOffset);
174 inline Address StandardFrame::caller_pc() const {
175 return Memory::Address_at(ComputePCAddress(fp()));
179 inline Address StandardFrame::ComputePCAddress(Address fp) {
180 return fp + StandardFrameConstants::kCallerPCOffset;
184 inline bool StandardFrame::IsArgumentsAdaptorFrame(Address fp) {
186 Memory::Object_at(fp + StandardFrameConstants::kContextOffset);
187 return marker == Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR);
191 inline bool StandardFrame::IsConstructFrame(Address fp) {
193 Memory::Object_at(fp + StandardFrameConstants::kMarkerOffset);
194 return marker == Smi::FromInt(StackFrame::CONSTRUCT);
198 inline JavaScriptFrame::JavaScriptFrame(StackFrameIterator* iterator)
199 : StandardFrame(iterator) {
203 Address JavaScriptFrame::GetParameterSlot(int index) const {
204 int param_count = ComputeParametersCount();
205 ASSERT(-1 <= index && index < param_count);
206 int parameter_offset = (param_count - index - 1) * kPointerSize;
207 return caller_sp() + parameter_offset;
211 Object* JavaScriptFrame::GetParameter(int index) const {
212 return Memory::Object_at(GetParameterSlot(index));
216 inline Object* JavaScriptFrame::receiver() const {
217 return GetParameter(-1);
221 inline void JavaScriptFrame::set_receiver(Object* value) {
222 Memory::Object_at(GetParameterSlot(-1)) = value;
226 inline bool JavaScriptFrame::has_adapted_arguments() const {
227 return IsArgumentsAdaptorFrame(caller_fp());
231 inline Object* JavaScriptFrame::function() const {
232 Object* result = function_slot_object();
233 ASSERT(result->IsJSFunction());
238 inline OptimizedFrame::OptimizedFrame(StackFrameIterator* iterator)
239 : JavaScriptFrame(iterator) {
243 inline ArgumentsAdaptorFrame::ArgumentsAdaptorFrame(
244 StackFrameIterator* iterator) : JavaScriptFrame(iterator) {
248 inline InternalFrame::InternalFrame(StackFrameIterator* iterator)
249 : StandardFrame(iterator) {
253 inline ConstructFrame::ConstructFrame(StackFrameIterator* iterator)
254 : InternalFrame(iterator) {
258 template<typename Iterator>
259 inline JavaScriptFrameIteratorTemp<Iterator>::JavaScriptFrameIteratorTemp(
261 : iterator_(isolate) {
262 if (!done()) Advance();
266 template<typename Iterator>
267 inline JavaScriptFrameIteratorTemp<Iterator>::JavaScriptFrameIteratorTemp(
268 Isolate* isolate, ThreadLocalTop* top)
269 : iterator_(isolate, top) {
270 if (!done()) Advance();
274 template<typename Iterator>
275 inline JavaScriptFrame* JavaScriptFrameIteratorTemp<Iterator>::frame() const {
276 // TODO(1233797): The frame hierarchy needs to change. It's
277 // problematic that we can't use the safe-cast operator to cast to
278 // the JavaScript frame type, because we may encounter arguments
280 StackFrame* frame = iterator_.frame();
281 ASSERT(frame->is_java_script() || frame->is_arguments_adaptor());
282 return static_cast<JavaScriptFrame*>(frame);
286 template<typename Iterator>
287 JavaScriptFrameIteratorTemp<Iterator>::JavaScriptFrameIteratorTemp(
288 Isolate* isolate, StackFrame::Id id)
289 : iterator_(isolate) {
294 template<typename Iterator>
295 void JavaScriptFrameIteratorTemp<Iterator>::Advance() {
298 } while (!iterator_.done() && !iterator_.frame()->is_java_script());
302 template<typename Iterator>
303 void JavaScriptFrameIteratorTemp<Iterator>::AdvanceToArgumentsFrame() {
304 if (!frame()->has_adapted_arguments()) return;
306 ASSERT(iterator_.frame()->is_arguments_adaptor());
310 template<typename Iterator>
311 void JavaScriptFrameIteratorTemp<Iterator>::AdvanceToId(StackFrame::Id id) {
314 if (frame()->id() == id) return;
319 template<typename Iterator>
320 void JavaScriptFrameIteratorTemp<Iterator>::Reset() {
322 if (!done()) Advance();
326 } } // namespace v8::internal
328 #endif // V8_FRAMES_INL_H_