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Unified Diff: src/profiler/cpu-profiler.cc

Issue 2053523003: Refactor CpuProfiler. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: address alph's comments Created 4 years, 6 months ago
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Index: src/profiler/cpu-profiler.cc
diff --git a/src/profiler/cpu-profiler.cc b/src/profiler/cpu-profiler.cc
index 65d10777355fd2ad2f176162a4fd62c857daf110..6119d818fbe4e0473f305741901841c8aac69ab3 100644
--- a/src/profiler/cpu-profiler.cc
+++ b/src/profiler/cpu-profiler.cc
@@ -199,294 +199,23 @@ void CpuProfiler::DeleteProfile(CpuProfile* profile) {
}
}
-
-void CpuProfiler::CallbackEvent(Name* name, Address entry_point) {
- CodeEventsContainer evt_rec(CodeEventRecord::CODE_CREATION);
- CodeCreateEventRecord* rec = &evt_rec.CodeCreateEventRecord_;
- rec->start = entry_point;
- rec->entry = profiles_->NewCodeEntry(CodeEventListener::CALLBACK_TAG,
- profiles_->GetName(name));
- rec->size = 1;
- processor_->Enqueue(evt_rec);
-}
-
-void CpuProfiler::CodeCreateEvent(CodeEventListener::LogEventsAndTags tag,
- AbstractCode* code, const char* name) {
- CodeEventsContainer evt_rec(CodeEventRecord::CODE_CREATION);
- CodeCreateEventRecord* rec = &evt_rec.CodeCreateEventRecord_;
- rec->start = code->address();
- rec->entry = profiles_->NewCodeEntry(
- tag, profiles_->GetFunctionName(name), CodeEntry::kEmptyNamePrefix,
- CodeEntry::kEmptyResourceName, CpuProfileNode::kNoLineNumberInfo,
- CpuProfileNode::kNoColumnNumberInfo, NULL, code->instruction_start());
- RecordInliningInfo(rec->entry, code);
- rec->size = code->ExecutableSize();
- processor_->Enqueue(evt_rec);
-}
-
-void CpuProfiler::CodeCreateEvent(CodeEventListener::LogEventsAndTags tag,
- AbstractCode* code, Name* name) {
- CodeEventsContainer evt_rec(CodeEventRecord::CODE_CREATION);
- CodeCreateEventRecord* rec = &evt_rec.CodeCreateEventRecord_;
- rec->start = code->address();
- rec->entry = profiles_->NewCodeEntry(
- tag, profiles_->GetFunctionName(name), CodeEntry::kEmptyNamePrefix,
- CodeEntry::kEmptyResourceName, CpuProfileNode::kNoLineNumberInfo,
- CpuProfileNode::kNoColumnNumberInfo, NULL, code->instruction_start());
- RecordInliningInfo(rec->entry, code);
- rec->size = code->ExecutableSize();
- processor_->Enqueue(evt_rec);
-}
-
-void CpuProfiler::CodeCreateEvent(CodeEventListener::LogEventsAndTags tag,
- AbstractCode* code,
- SharedFunctionInfo* shared,
- Name* script_name) {
- CodeEventsContainer evt_rec(CodeEventRecord::CODE_CREATION);
- CodeCreateEventRecord* rec = &evt_rec.CodeCreateEventRecord_;
- rec->start = code->address();
- rec->entry = profiles_->NewCodeEntry(
- tag, profiles_->GetFunctionName(shared->DebugName()),
- CodeEntry::kEmptyNamePrefix,
- profiles_->GetName(InferScriptName(script_name, shared)),
- CpuProfileNode::kNoLineNumberInfo, CpuProfileNode::kNoColumnNumberInfo,
- NULL, code->instruction_start());
- RecordInliningInfo(rec->entry, code);
- rec->entry->FillFunctionInfo(shared);
- rec->size = code->ExecutableSize();
- processor_->Enqueue(evt_rec);
-}
-
-void CpuProfiler::CodeCreateEvent(CodeEventListener::LogEventsAndTags tag,
- AbstractCode* abstract_code,
- SharedFunctionInfo* shared, Name* script_name,
- int line, int column) {
- CodeEventsContainer evt_rec(CodeEventRecord::CODE_CREATION);
- CodeCreateEventRecord* rec = &evt_rec.CodeCreateEventRecord_;
- rec->start = abstract_code->address();
- Script* script = Script::cast(shared->script());
- JITLineInfoTable* line_table = NULL;
- if (script) {
- if (abstract_code->IsCode()) {
- Code* code = abstract_code->GetCode();
- int start_position = shared->start_position();
- int end_position = shared->end_position();
- line_table = new JITLineInfoTable();
- for (RelocIterator it(code); !it.done(); it.next()) {
- RelocInfo* reloc_info = it.rinfo();
- if (!RelocInfo::IsPosition(reloc_info->rmode())) continue;
- int position = static_cast<int>(reloc_info->data());
- // TODO(alph): in case of inlining the position may correspond
- // to an inlined function source code. Do not collect positions
- // that fall beyond the function source code. There's however a
- // chance the inlined function has similar positions but in another
- // script. So the proper fix is to store script_id in some form
- // along with the inlined function positions.
- if (position < start_position || position >= end_position) continue;
- int pc_offset = static_cast<int>(reloc_info->pc() - code->address());
- int line_number = script->GetLineNumber(position) + 1;
- line_table->SetPosition(pc_offset, line_number);
- }
- } else {
- BytecodeArray* bytecode = abstract_code->GetBytecodeArray();
- line_table = new JITLineInfoTable();
- interpreter::SourcePositionTableIterator it(
- bytecode->source_position_table());
- for (; !it.done(); it.Advance()) {
- int line_number = script->GetLineNumber(it.source_position()) + 1;
- int pc_offset = it.bytecode_offset() + BytecodeArray::kHeaderSize;
- line_table->SetPosition(pc_offset, line_number);
- }
- }
- }
- rec->entry = profiles_->NewCodeEntry(
- tag, profiles_->GetFunctionName(shared->DebugName()),
- CodeEntry::kEmptyNamePrefix,
- profiles_->GetName(InferScriptName(script_name, shared)), line, column,
- line_table, abstract_code->instruction_start());
- RecordInliningInfo(rec->entry, abstract_code);
- RecordDeoptInlinedFrames(rec->entry, abstract_code);
- rec->entry->FillFunctionInfo(shared);
- rec->size = abstract_code->ExecutableSize();
- processor_->Enqueue(evt_rec);
-}
-
-void CpuProfiler::CodeCreateEvent(CodeEventListener::LogEventsAndTags tag,
- AbstractCode* code, int args_count) {
- CodeEventsContainer evt_rec(CodeEventRecord::CODE_CREATION);
- CodeCreateEventRecord* rec = &evt_rec.CodeCreateEventRecord_;
- rec->start = code->address();
- rec->entry = profiles_->NewCodeEntry(
- tag, profiles_->GetName(args_count), "args_count: ",
- CodeEntry::kEmptyResourceName, CpuProfileNode::kNoLineNumberInfo,
- CpuProfileNode::kNoColumnNumberInfo, NULL, code->instruction_start());
- RecordInliningInfo(rec->entry, code);
- rec->size = code->ExecutableSize();
- processor_->Enqueue(evt_rec);
-}
-
-void CpuProfiler::CodeMoveEvent(AbstractCode* from, Address to) {
- CodeEventsContainer evt_rec(CodeEventRecord::CODE_MOVE);
- CodeMoveEventRecord* rec = &evt_rec.CodeMoveEventRecord_;
- rec->from = from->address();
- rec->to = to;
- processor_->Enqueue(evt_rec);
-}
-
-void CpuProfiler::CodeDisableOptEvent(AbstractCode* code,
- SharedFunctionInfo* shared) {
- CodeEventsContainer evt_rec(CodeEventRecord::CODE_DISABLE_OPT);
- CodeDisableOptEventRecord* rec = &evt_rec.CodeDisableOptEventRecord_;
- rec->start = code->address();
- rec->bailout_reason = GetBailoutReason(shared->disable_optimization_reason());
- processor_->Enqueue(evt_rec);
-}
-
-void CpuProfiler::CodeDeoptEvent(Code* code, Address pc, int fp_to_sp_delta) {
- CodeEventsContainer evt_rec(CodeEventRecord::CODE_DEOPT);
- CodeDeoptEventRecord* rec = &evt_rec.CodeDeoptEventRecord_;
- Deoptimizer::DeoptInfo info = Deoptimizer::GetDeoptInfo(code, pc);
- rec->start = code->address();
- rec->deopt_reason = Deoptimizer::GetDeoptReason(info.deopt_reason);
- rec->position = info.position;
- rec->deopt_id = info.deopt_id;
- processor_->Enqueue(evt_rec);
- processor_->AddDeoptStack(isolate_, pc, fp_to_sp_delta);
-}
-
-void CpuProfiler::GetterCallbackEvent(Name* name, Address entry_point) {
- CodeEventsContainer evt_rec(CodeEventRecord::CODE_CREATION);
- CodeCreateEventRecord* rec = &evt_rec.CodeCreateEventRecord_;
- rec->start = entry_point;
- rec->entry = profiles_->NewCodeEntry(CodeEventListener::CALLBACK_TAG,
- profiles_->GetName(name), "get ");
- rec->size = 1;
- processor_->Enqueue(evt_rec);
-}
-
-void CpuProfiler::RegExpCodeCreateEvent(AbstractCode* code, String* source) {
- CodeEventsContainer evt_rec(CodeEventRecord::CODE_CREATION);
- CodeCreateEventRecord* rec = &evt_rec.CodeCreateEventRecord_;
- rec->start = code->address();
- rec->entry = profiles_->NewCodeEntry(
- CodeEventListener::REG_EXP_TAG, profiles_->GetName(source), "RegExp: ",
- CodeEntry::kEmptyResourceName, CpuProfileNode::kNoLineNumberInfo,
- CpuProfileNode::kNoColumnNumberInfo, NULL, code->instruction_start());
- rec->size = code->ExecutableSize();
- processor_->Enqueue(evt_rec);
-}
-
-
-void CpuProfiler::SetterCallbackEvent(Name* name, Address entry_point) {
- CodeEventsContainer evt_rec(CodeEventRecord::CODE_CREATION);
- CodeCreateEventRecord* rec = &evt_rec.CodeCreateEventRecord_;
- rec->start = entry_point;
- rec->entry = profiles_->NewCodeEntry(CodeEventListener::CALLBACK_TAG,
- profiles_->GetName(name), "set ");
- rec->size = 1;
- processor_->Enqueue(evt_rec);
-}
-
-Name* CpuProfiler::InferScriptName(Name* name, SharedFunctionInfo* info) {
- if (name->IsString() && String::cast(name)->length()) return name;
- if (!info->script()->IsScript()) return name;
- Object* source_url = Script::cast(info->script())->source_url();
- return source_url->IsName() ? Name::cast(source_url) : name;
-}
-
-void CpuProfiler::RecordInliningInfo(CodeEntry* entry,
- AbstractCode* abstract_code) {
- if (!abstract_code->IsCode()) return;
- Code* code = abstract_code->GetCode();
- if (code->kind() != Code::OPTIMIZED_FUNCTION) return;
- DeoptimizationInputData* deopt_input_data =
- DeoptimizationInputData::cast(code->deoptimization_data());
- int deopt_count = deopt_input_data->DeoptCount();
- for (int i = 0; i < deopt_count; i++) {
- int pc_offset = deopt_input_data->Pc(i)->value();
- if (pc_offset == -1) continue;
- int translation_index = deopt_input_data->TranslationIndex(i)->value();
- TranslationIterator it(deopt_input_data->TranslationByteArray(),
- translation_index);
- Translation::Opcode opcode = static_cast<Translation::Opcode>(it.Next());
- DCHECK_EQ(Translation::BEGIN, opcode);
- it.Skip(Translation::NumberOfOperandsFor(opcode));
- int depth = 0;
- std::vector<CodeEntry*> inline_stack;
- while (it.HasNext() &&
- Translation::BEGIN !=
- (opcode = static_cast<Translation::Opcode>(it.Next()))) {
- if (opcode != Translation::JS_FRAME &&
- opcode != Translation::INTERPRETED_FRAME) {
- it.Skip(Translation::NumberOfOperandsFor(opcode));
- continue;
- }
- it.Next(); // Skip ast_id
- int shared_info_id = it.Next();
- it.Next(); // Skip height
- SharedFunctionInfo* shared_info = SharedFunctionInfo::cast(
- deopt_input_data->LiteralArray()->get(shared_info_id));
- if (!depth++) continue; // Skip the current function itself.
- CodeEntry* inline_entry = new CodeEntry(
- entry->tag(), profiles_->GetFunctionName(shared_info->DebugName()),
- CodeEntry::kEmptyNamePrefix, entry->resource_name(),
- CpuProfileNode::kNoLineNumberInfo,
- CpuProfileNode::kNoColumnNumberInfo, NULL, code->instruction_start());
- inline_entry->FillFunctionInfo(shared_info);
- inline_stack.push_back(inline_entry);
- }
- if (!inline_stack.empty()) {
- entry->AddInlineStack(pc_offset, inline_stack);
- DCHECK(inline_stack.empty());
- }
- }
-}
-
-void CpuProfiler::RecordDeoptInlinedFrames(CodeEntry* entry,
- AbstractCode* abstract_code) {
- if (abstract_code->kind() != AbstractCode::OPTIMIZED_FUNCTION) return;
- Code* code = abstract_code->GetCode();
- DeoptimizationInputData* deopt_input_data =
- DeoptimizationInputData::cast(code->deoptimization_data());
- int const mask = RelocInfo::ModeMask(RelocInfo::DEOPT_ID);
- for (RelocIterator rit(code, mask); !rit.done(); rit.next()) {
- RelocInfo* reloc_info = rit.rinfo();
- DCHECK(RelocInfo::IsDeoptId(reloc_info->rmode()));
- int deopt_id = static_cast<int>(reloc_info->data());
- int translation_index =
- deopt_input_data->TranslationIndex(deopt_id)->value();
- TranslationIterator it(deopt_input_data->TranslationByteArray(),
- translation_index);
- Translation::Opcode opcode = static_cast<Translation::Opcode>(it.Next());
- DCHECK_EQ(Translation::BEGIN, opcode);
- it.Skip(Translation::NumberOfOperandsFor(opcode));
- std::vector<CodeEntry::DeoptInlinedFrame> inlined_frames;
- while (it.HasNext() &&
- Translation::BEGIN !=
- (opcode = static_cast<Translation::Opcode>(it.Next()))) {
- if (opcode != Translation::JS_FRAME &&
- opcode != Translation::INTERPRETED_FRAME) {
- it.Skip(Translation::NumberOfOperandsFor(opcode));
- continue;
- }
- BailoutId ast_id = BailoutId(it.Next());
- int shared_info_id = it.Next();
- it.Next(); // Skip height
- SharedFunctionInfo* shared = SharedFunctionInfo::cast(
- deopt_input_data->LiteralArray()->get(shared_info_id));
- int source_position = Deoptimizer::ComputeSourcePosition(shared, ast_id);
- int script_id = v8::UnboundScript::kNoScriptId;
- if (shared->script()->IsScript()) {
- Script* script = Script::cast(shared->script());
- script_id = script->id();
- }
- CodeEntry::DeoptInlinedFrame frame = {source_position, script_id};
- inlined_frames.push_back(frame);
- }
- if (!inlined_frames.empty() && !entry->HasDeoptInlinedFramesFor(deopt_id)) {
- entry->AddDeoptInlinedFrames(deopt_id, inlined_frames);
- DCHECK(inlined_frames.empty());
+void CpuProfiler::CodeEventHandler(const CodeEventsContainer& evt_rec) {
+ switch (evt_rec.generic.type) {
+ case CodeEventRecord::CODE_CREATION:
+ case CodeEventRecord::CODE_MOVE:
+ case CodeEventRecord::CODE_DISABLE_OPT:
+ processor_->Enqueue(evt_rec);
+ break;
+ case CodeEventRecord::CODE_DEOPT: {
+ const CodeDeoptEventRecord* rec = &evt_rec.CodeDeoptEventRecord_;
+ Address pc = reinterpret_cast<Address>(rec->pc);
+ int fp_to_sp_delta = rec->fp_to_sp_delta;
+ processor_->Enqueue(evt_rec);
+ processor_->AddDeoptStack(isolate_, pc, fp_to_sp_delta);
+ break;
}
+ default:
+ UNREACHABLE();
}
}
@@ -558,11 +287,13 @@ void CpuProfiler::StartProcessorIfNotStarted() {
generator_.reset(new ProfileGenerator(profiles_.get()));
processor_.reset(new ProfilerEventsProcessor(generator_.get(), sampler,
sampling_interval_));
+ ProfilerListener* profiler_listener = logger->profiler_listener();
+ profiler_listener->StartBuildingCodeEntry();
alph 2016/06/17 10:38:44 EnableBuildingCodeEntries ?
lpy 2016/06/17 13:55:00 Done.
+ profiler_listener->AddObserver(this);
is_profiling_ = true;
isolate_->set_is_profiling(true);
// Enumerate stuff we already have in the heap.
DCHECK(isolate_->heap()->HasBeenSetUp());
- isolate_->code_event_dispatcher()->AddListener(this);
if (!FLAG_prof_browser_mode) {
logger->LogCodeObjects();
}
@@ -609,7 +340,8 @@ void CpuProfiler::StopProcessor() {
reinterpret_cast<sampler::Sampler*>(logger->ticker_);
is_profiling_ = false;
isolate_->set_is_profiling(false);
- isolate_->code_event_dispatcher()->RemoveListener(this);
+ ProfilerListener* profiler_listener = logger->profiler_listener();
+ profiler_listener->RemoveObserver(this);
processor_->StopSynchronously();
processor_.reset();
generator_.reset();
@@ -632,6 +364,5 @@ void CpuProfiler::LogBuiltins() {
}
}
-
} // namespace internal
} // namespace v8
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