| // Copyright 2009 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include <stdarg.h> |
| |
| #include "v8.h" |
| |
| #include "bootstrapper.h" |
| #include "global-handles.h" |
| #include "log.h" |
| #include "macro-assembler.h" |
| #include "serialize.h" |
| #include "string-stream.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| |
| // |
| // Sliding state window. Updates counters to keep track of the last |
| // window of kBufferSize states. This is useful to track where we |
| // spent our time. |
| // |
| class SlidingStateWindow { |
| public: |
| SlidingStateWindow(); |
| ~SlidingStateWindow(); |
| void AddState(StateTag state); |
| |
| private: |
| static const int kBufferSize = 256; |
| int current_index_; |
| bool is_full_; |
| byte buffer_[kBufferSize]; |
| |
| |
| void IncrementStateCounter(StateTag state) { |
| Counters::state_counters[state].Increment(); |
| } |
| |
| |
| void DecrementStateCounter(StateTag state) { |
| Counters::state_counters[state].Decrement(); |
| } |
| }; |
| |
| |
| // |
| // The Profiler samples pc and sp values for the main thread. |
| // Each sample is appended to a circular buffer. |
| // An independent thread removes data and writes it to the log. |
| // This design minimizes the time spent in the sampler. |
| // |
| class Profiler: public Thread { |
| public: |
| Profiler(); |
| void Engage(); |
| void Disengage(); |
| |
| // Inserts collected profiling data into buffer. |
| void Insert(TickSample* sample) { |
| if (paused_) |
| return; |
| |
| if (Succ(head_) == tail_) { |
| overflow_ = true; |
| } else { |
| buffer_[head_] = *sample; |
| head_ = Succ(head_); |
| buffer_semaphore_->Signal(); // Tell we have an element. |
| } |
| } |
| |
| // Waits for a signal and removes profiling data. |
| bool Remove(TickSample* sample) { |
| buffer_semaphore_->Wait(); // Wait for an element. |
| *sample = buffer_[tail_]; |
| bool result = overflow_; |
| tail_ = Succ(tail_); |
| overflow_ = false; |
| return result; |
| } |
| |
| void Run(); |
| |
| // Pause and Resume TickSample data collection. |
| static bool paused() { return paused_; } |
| static void pause() { paused_ = true; } |
| static void resume() { paused_ = false; } |
| |
| private: |
| // Returns the next index in the cyclic buffer. |
| int Succ(int index) { return (index + 1) % kBufferSize; } |
| |
| // Cyclic buffer for communicating profiling samples |
| // between the signal handler and the worker thread. |
| static const int kBufferSize = 128; |
| TickSample buffer_[kBufferSize]; // Buffer storage. |
| int head_; // Index to the buffer head. |
| int tail_; // Index to the buffer tail. |
| bool overflow_; // Tell whether a buffer overflow has occurred. |
| Semaphore* buffer_semaphore_; // Sempahore used for buffer synchronization. |
| |
| // Tells whether profiler is engaged, that is, processing thread is stated. |
| bool engaged_; |
| |
| // Tells whether worker thread should continue running. |
| bool running_; |
| |
| // Tells whether we are currently recording tick samples. |
| static bool paused_; |
| }; |
| |
| bool Profiler::paused_ = false; |
| |
| |
| // |
| // StackTracer implementation |
| // |
| void StackTracer::Trace(TickSample* sample) { |
| if (sample->state == GC) { |
| sample->frames_count = 0; |
| return; |
| } |
| |
| const Address js_entry_sp = Top::js_entry_sp(Top::GetCurrentThread()); |
| if (js_entry_sp == 0) { |
| // Not executing JS now. |
| sample->frames_count = 0; |
| return; |
| } |
| |
| const Address functionAddr = |
| sample->fp + JavaScriptFrameConstants::kFunctionOffset; |
| if (SafeStackFrameIterator::IsWithinBounds(sample->sp, js_entry_sp, |
| functionAddr)) { |
| sample->function = Memory::Address_at(functionAddr) - kHeapObjectTag; |
| } |
| |
| int i = 0; |
| const Address callback = Logger::current_state_ != NULL ? |
| Logger::current_state_->external_callback() : NULL; |
| if (callback != NULL) { |
| sample->stack[i++] = callback; |
| } |
| |
| SafeStackTraceFrameIterator it(sample->fp, sample->sp, |
| sample->sp, js_entry_sp); |
| while (!it.done() && i < TickSample::kMaxFramesCount) { |
| sample->stack[i++] = it.frame()->pc(); |
| it.Advance(); |
| } |
| sample->frames_count = i; |
| } |
| |
| |
| // |
| // Ticker used to provide ticks to the profiler and the sliding state |
| // window. |
| // |
| class Ticker: public Sampler { |
| public: |
| explicit Ticker(int interval): |
| Sampler(interval, FLAG_prof), window_(NULL), profiler_(NULL) {} |
| |
| ~Ticker() { if (IsActive()) Stop(); } |
| |
| void SampleStack(TickSample* sample) { |
| StackTracer::Trace(sample); |
| } |
| |
| void Tick(TickSample* sample) { |
| if (profiler_) profiler_->Insert(sample); |
| if (window_) window_->AddState(sample->state); |
| } |
| |
| void SetWindow(SlidingStateWindow* window) { |
| window_ = window; |
| if (!IsActive()) Start(); |
| } |
| |
| void ClearWindow() { |
| window_ = NULL; |
| if (!profiler_ && IsActive()) Stop(); |
| } |
| |
| void SetProfiler(Profiler* profiler) { |
| profiler_ = profiler; |
| if (!FLAG_prof_lazy && !IsActive()) Start(); |
| } |
| |
| void ClearProfiler() { |
| profiler_ = NULL; |
| if (!window_ && IsActive()) Stop(); |
| } |
| |
| private: |
| SlidingStateWindow* window_; |
| Profiler* profiler_; |
| }; |
| |
| |
| // |
| // SlidingStateWindow implementation. |
| // |
| SlidingStateWindow::SlidingStateWindow(): current_index_(0), is_full_(false) { |
| for (int i = 0; i < kBufferSize; i++) { |
| buffer_[i] = static_cast<byte>(OTHER); |
| } |
| Logger::ticker_->SetWindow(this); |
| } |
| |
| |
| SlidingStateWindow::~SlidingStateWindow() { |
| Logger::ticker_->ClearWindow(); |
| } |
| |
| |
| void SlidingStateWindow::AddState(StateTag state) { |
| if (is_full_) { |
| DecrementStateCounter(static_cast<StateTag>(buffer_[current_index_])); |
| } else if (current_index_ == kBufferSize - 1) { |
| is_full_ = true; |
| } |
| buffer_[current_index_] = static_cast<byte>(state); |
| IncrementStateCounter(state); |
| ASSERT(IsPowerOf2(kBufferSize)); |
| current_index_ = (current_index_ + 1) & (kBufferSize - 1); |
| } |
| |
| |
| // |
| // Profiler implementation. |
| // |
| Profiler::Profiler() |
| : head_(0), |
| tail_(0), |
| overflow_(false), |
| buffer_semaphore_(OS::CreateSemaphore(0)), |
| engaged_(false), |
| running_(false) { |
| } |
| |
| |
| void Profiler::Engage() { |
| if (engaged_) return; |
| engaged_ = true; |
| |
| // TODO(mnaganov): This is actually "Chromium" mode. Flags need to be revised. |
| // http://code.google.com/p/v8/issues/detail?id=487 |
| if (!FLAG_prof_lazy) { |
| OS::LogSharedLibraryAddresses(); |
| } |
| |
| // Start thread processing the profiler buffer. |
| running_ = true; |
| Start(); |
| |
| // Register to get ticks. |
| Logger::ticker_->SetProfiler(this); |
| |
| Logger::ProfilerBeginEvent(); |
| Logger::LogAliases(); |
| } |
| |
| |
| void Profiler::Disengage() { |
| if (!engaged_) return; |
| |
| // Stop receiving ticks. |
| Logger::ticker_->ClearProfiler(); |
| |
| // Terminate the worker thread by setting running_ to false, |
| // inserting a fake element in the queue and then wait for |
| // the thread to terminate. |
| running_ = false; |
| TickSample sample; |
| // Reset 'paused_' flag, otherwise semaphore may not be signalled. |
| resume(); |
| Insert(&sample); |
| Join(); |
| |
| LOG(UncheckedStringEvent("profiler", "end")); |
| } |
| |
| |
| void Profiler::Run() { |
| TickSample sample; |
| bool overflow = Logger::profiler_->Remove(&sample); |
| while (running_) { |
| LOG(TickEvent(&sample, overflow)); |
| overflow = Logger::profiler_->Remove(&sample); |
| } |
| } |
| |
| |
| // |
| // Logger class implementation. |
| // |
| Ticker* Logger::ticker_ = NULL; |
| Profiler* Logger::profiler_ = NULL; |
| VMState* Logger::current_state_ = NULL; |
| VMState Logger::bottom_state_(EXTERNAL); |
| SlidingStateWindow* Logger::sliding_state_window_ = NULL; |
| const char** Logger::log_events_ = NULL; |
| CompressionHelper* Logger::compression_helper_ = NULL; |
| int Logger::logging_nesting_ = 0; |
| int Logger::cpu_profiler_nesting_ = 0; |
| int Logger::heap_profiler_nesting_ = 0; |
| |
| #define DECLARE_LONG_EVENT(ignore1, long_name, ignore2) long_name, |
| const char* kLongLogEventsNames[Logger::NUMBER_OF_LOG_EVENTS] = { |
| LOG_EVENTS_AND_TAGS_LIST(DECLARE_LONG_EVENT) |
| }; |
| #undef DECLARE_LONG_EVENT |
| |
| #define DECLARE_SHORT_EVENT(ignore1, ignore2, short_name) short_name, |
| const char* kCompressedLogEventsNames[Logger::NUMBER_OF_LOG_EVENTS] = { |
| LOG_EVENTS_AND_TAGS_LIST(DECLARE_SHORT_EVENT) |
| }; |
| #undef DECLARE_SHORT_EVENT |
| |
| |
| void Logger::ProfilerBeginEvent() { |
| if (!Log::IsEnabled()) return; |
| LogMessageBuilder msg; |
| msg.Append("profiler,\"begin\",%d\n", kSamplingIntervalMs); |
| if (FLAG_compress_log) { |
| msg.Append("profiler,\"compression\",%d\n", kCompressionWindowSize); |
| } |
| msg.WriteToLogFile(); |
| } |
| |
| |
| void Logger::LogAliases() { |
| if (!Log::IsEnabled() || !FLAG_compress_log) return; |
| LogMessageBuilder msg; |
| for (int i = 0; i < NUMBER_OF_LOG_EVENTS; ++i) { |
| msg.Append("alias,%s,%s\n", |
| kCompressedLogEventsNames[i], kLongLogEventsNames[i]); |
| } |
| msg.WriteToLogFile(); |
| } |
| |
| #endif // ENABLE_LOGGING_AND_PROFILING |
| |
| |
| void Logger::StringEvent(const char* name, const char* value) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (FLAG_log) UncheckedStringEvent(name, value); |
| #endif |
| } |
| |
| |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| void Logger::UncheckedStringEvent(const char* name, const char* value) { |
| if (!Log::IsEnabled()) return; |
| LogMessageBuilder msg; |
| msg.Append("%s,\"%s\"\n", name, value); |
| msg.WriteToLogFile(); |
| } |
| #endif |
| |
| |
| void Logger::IntEvent(const char* name, int value) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (FLAG_log) UncheckedIntEvent(name, value); |
| #endif |
| } |
| |
| |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| void Logger::UncheckedIntEvent(const char* name, int value) { |
| if (!Log::IsEnabled()) return; |
| LogMessageBuilder msg; |
| msg.Append("%s,%d\n", name, value); |
| msg.WriteToLogFile(); |
| } |
| #endif |
| |
| |
| void Logger::HandleEvent(const char* name, Object** location) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log_handles) return; |
| LogMessageBuilder msg; |
| msg.Append("%s,0x%" V8PRIxPTR "\n", name, location); |
| msg.WriteToLogFile(); |
| #endif |
| } |
| |
| |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| // ApiEvent is private so all the calls come from the Logger class. It is the |
| // caller's responsibility to ensure that log is enabled and that |
| // FLAG_log_api is true. |
| void Logger::ApiEvent(const char* format, ...) { |
| ASSERT(Log::IsEnabled() && FLAG_log_api); |
| LogMessageBuilder msg; |
| va_list ap; |
| va_start(ap, format); |
| msg.AppendVA(format, ap); |
| va_end(ap); |
| msg.WriteToLogFile(); |
| } |
| #endif |
| |
| |
| void Logger::ApiNamedSecurityCheck(Object* key) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log_api) return; |
| if (key->IsString()) { |
| SmartPointer<char> str = |
| String::cast(key)->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| ApiEvent("api,check-security,\"%s\"\n", *str); |
| } else if (key->IsUndefined()) { |
| ApiEvent("api,check-security,undefined\n"); |
| } else { |
| ApiEvent("api,check-security,['no-name']\n"); |
| } |
| #endif |
| } |
| |
| |
| void Logger::SharedLibraryEvent(const char* library_path, |
| uintptr_t start, |
| uintptr_t end) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_prof) return; |
| LogMessageBuilder msg; |
| msg.Append("shared-library,\"%s\",0x%08" V8PRIxPTR ",0x%08" V8PRIxPTR "\n", |
| library_path, |
| start, |
| end); |
| msg.WriteToLogFile(); |
| #endif |
| } |
| |
| |
| void Logger::SharedLibraryEvent(const wchar_t* library_path, |
| uintptr_t start, |
| uintptr_t end) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_prof) return; |
| LogMessageBuilder msg; |
| msg.Append("shared-library,\"%ls\",0x%08" V8PRIxPTR ",0x%08" V8PRIxPTR "\n", |
| library_path, |
| start, |
| end); |
| msg.WriteToLogFile(); |
| #endif |
| } |
| |
| |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| void Logger::LogRegExpSource(Handle<JSRegExp> regexp) { |
| // Prints "/" + re.source + "/" + |
| // (re.global?"g":"") + (re.ignorecase?"i":"") + (re.multiline?"m":"") |
| LogMessageBuilder msg; |
| |
| Handle<Object> source = GetProperty(regexp, "source"); |
| if (!source->IsString()) { |
| msg.Append("no source"); |
| return; |
| } |
| |
| switch (regexp->TypeTag()) { |
| case JSRegExp::ATOM: |
| msg.Append('a'); |
| break; |
| default: |
| break; |
| } |
| msg.Append('/'); |
| msg.AppendDetailed(*Handle<String>::cast(source), false); |
| msg.Append('/'); |
| |
| // global flag |
| Handle<Object> global = GetProperty(regexp, "global"); |
| if (global->IsTrue()) { |
| msg.Append('g'); |
| } |
| // ignorecase flag |
| Handle<Object> ignorecase = GetProperty(regexp, "ignoreCase"); |
| if (ignorecase->IsTrue()) { |
| msg.Append('i'); |
| } |
| // multiline flag |
| Handle<Object> multiline = GetProperty(regexp, "multiline"); |
| if (multiline->IsTrue()) { |
| msg.Append('m'); |
| } |
| |
| msg.WriteToLogFile(); |
| } |
| #endif // ENABLE_LOGGING_AND_PROFILING |
| |
| |
| void Logger::RegExpCompileEvent(Handle<JSRegExp> regexp, bool in_cache) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log_regexp) return; |
| LogMessageBuilder msg; |
| msg.Append("regexp-compile,"); |
| LogRegExpSource(regexp); |
| msg.Append(in_cache ? ",hit\n" : ",miss\n"); |
| msg.WriteToLogFile(); |
| #endif |
| } |
| |
| |
| void Logger::LogRuntime(Vector<const char> format, JSArray* args) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log_runtime) return; |
| HandleScope scope; |
| LogMessageBuilder msg; |
| for (int i = 0; i < format.length(); i++) { |
| char c = format[i]; |
| if (c == '%' && i <= format.length() - 2) { |
| i++; |
| ASSERT('0' <= format[i] && format[i] <= '9'); |
| Object* obj = args->GetElement(format[i] - '0'); |
| i++; |
| switch (format[i]) { |
| case 's': |
| msg.AppendDetailed(String::cast(obj), false); |
| break; |
| case 'S': |
| msg.AppendDetailed(String::cast(obj), true); |
| break; |
| case 'r': |
| Logger::LogRegExpSource(Handle<JSRegExp>(JSRegExp::cast(obj))); |
| break; |
| case 'x': |
| msg.Append("0x%x", Smi::cast(obj)->value()); |
| break; |
| case 'i': |
| msg.Append("%i", Smi::cast(obj)->value()); |
| break; |
| default: |
| UNREACHABLE(); |
| } |
| } else { |
| msg.Append(c); |
| } |
| } |
| msg.Append('\n'); |
| msg.WriteToLogFile(); |
| #endif |
| } |
| |
| |
| void Logger::ApiIndexedSecurityCheck(uint32_t index) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log_api) return; |
| ApiEvent("api,check-security,%u\n", index); |
| #endif |
| } |
| |
| |
| void Logger::ApiNamedPropertyAccess(const char* tag, |
| JSObject* holder, |
| Object* name) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| ASSERT(name->IsString()); |
| if (!Log::IsEnabled() || !FLAG_log_api) return; |
| String* class_name_obj = holder->class_name(); |
| SmartPointer<char> class_name = |
| class_name_obj->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| SmartPointer<char> property_name = |
| String::cast(name)->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| Logger::ApiEvent("api,%s,\"%s\",\"%s\"\n", tag, *class_name, *property_name); |
| #endif |
| } |
| |
| void Logger::ApiIndexedPropertyAccess(const char* tag, |
| JSObject* holder, |
| uint32_t index) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log_api) return; |
| String* class_name_obj = holder->class_name(); |
| SmartPointer<char> class_name = |
| class_name_obj->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| Logger::ApiEvent("api,%s,\"%s\",%u\n", tag, *class_name, index); |
| #endif |
| } |
| |
| void Logger::ApiObjectAccess(const char* tag, JSObject* object) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log_api) return; |
| String* class_name_obj = object->class_name(); |
| SmartPointer<char> class_name = |
| class_name_obj->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| Logger::ApiEvent("api,%s,\"%s\"\n", tag, *class_name); |
| #endif |
| } |
| |
| |
| void Logger::ApiEntryCall(const char* name) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log_api) return; |
| Logger::ApiEvent("api,%s\n", name); |
| #endif |
| } |
| |
| |
| void Logger::NewEvent(const char* name, void* object, size_t size) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log) return; |
| LogMessageBuilder msg; |
| msg.Append("new,%s,0x%" V8PRIxPTR ",%u\n", name, object, |
| static_cast<unsigned int>(size)); |
| msg.WriteToLogFile(); |
| #endif |
| } |
| |
| |
| void Logger::DeleteEvent(const char* name, void* object) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log) return; |
| LogMessageBuilder msg; |
| msg.Append("delete,%s,0x%" V8PRIxPTR "\n", name, object); |
| msg.WriteToLogFile(); |
| #endif |
| } |
| |
| |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| |
| // A class that contains all common code dealing with record compression. |
| class CompressionHelper { |
| public: |
| explicit CompressionHelper(int window_size) |
| : compressor_(window_size), repeat_count_(0) { } |
| |
| // Handles storing message in compressor, retrieving the previous one and |
| // prefixing it with repeat count, if needed. |
| // Returns true if message needs to be written to log. |
| bool HandleMessage(LogMessageBuilder* msg) { |
| if (!msg->StoreInCompressor(&compressor_)) { |
| // Current message repeats the previous one, don't write it. |
| ++repeat_count_; |
| return false; |
| } |
| if (repeat_count_ == 0) { |
| return msg->RetrieveCompressedPrevious(&compressor_); |
| } |
| OS::SNPrintF(prefix_, "%s,%d,", |
| Logger::log_events_[Logger::REPEAT_META_EVENT], |
| repeat_count_ + 1); |
| repeat_count_ = 0; |
| return msg->RetrieveCompressedPrevious(&compressor_, prefix_.start()); |
| } |
| |
| private: |
| LogRecordCompressor compressor_; |
| int repeat_count_; |
| EmbeddedVector<char, 20> prefix_; |
| }; |
| |
| #endif // ENABLE_LOGGING_AND_PROFILING |
| |
| |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| void Logger::CallbackEventInternal(const char* prefix, const char* name, |
| Address entry_point) { |
| if (!Log::IsEnabled() || !FLAG_log_code) return; |
| LogMessageBuilder msg; |
| msg.Append("%s,%s,", |
| log_events_[CODE_CREATION_EVENT], log_events_[CALLBACK_TAG]); |
| msg.AppendAddress(entry_point); |
| msg.Append(",1,\"%s%s\"", prefix, name); |
| if (FLAG_compress_log) { |
| ASSERT(compression_helper_ != NULL); |
| if (!compression_helper_->HandleMessage(&msg)) return; |
| } |
| msg.Append('\n'); |
| msg.WriteToLogFile(); |
| } |
| #endif |
| |
| |
| void Logger::CallbackEvent(String* name, Address entry_point) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log_code) return; |
| SmartPointer<char> str = |
| name->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| CallbackEventInternal("", *str, entry_point); |
| #endif |
| } |
| |
| |
| void Logger::GetterCallbackEvent(String* name, Address entry_point) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log_code) return; |
| SmartPointer<char> str = |
| name->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| CallbackEventInternal("get ", *str, entry_point); |
| #endif |
| } |
| |
| |
| void Logger::SetterCallbackEvent(String* name, Address entry_point) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log_code) return; |
| SmartPointer<char> str = |
| name->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| CallbackEventInternal("set ", *str, entry_point); |
| #endif |
| } |
| |
| |
| void Logger::CodeCreateEvent(LogEventsAndTags tag, |
| Code* code, |
| const char* comment) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log_code) return; |
| LogMessageBuilder msg; |
| msg.Append("%s,%s,", log_events_[CODE_CREATION_EVENT], log_events_[tag]); |
| msg.AppendAddress(code->address()); |
| msg.Append(",%d,\"", code->ExecutableSize()); |
| for (const char* p = comment; *p != '\0'; p++) { |
| if (*p == '"') { |
| msg.Append('\\'); |
| } |
| msg.Append(*p); |
| } |
| msg.Append('"'); |
| if (FLAG_compress_log) { |
| ASSERT(compression_helper_ != NULL); |
| if (!compression_helper_->HandleMessage(&msg)) return; |
| } |
| msg.Append('\n'); |
| msg.WriteToLogFile(); |
| #endif |
| } |
| |
| |
| void Logger::CodeCreateEvent(LogEventsAndTags tag, Code* code, String* name) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log_code) return; |
| LogMessageBuilder msg; |
| SmartPointer<char> str = |
| name->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| msg.Append("%s,%s,", log_events_[CODE_CREATION_EVENT], log_events_[tag]); |
| msg.AppendAddress(code->address()); |
| msg.Append(",%d,\"%s\"", code->ExecutableSize(), *str); |
| if (FLAG_compress_log) { |
| ASSERT(compression_helper_ != NULL); |
| if (!compression_helper_->HandleMessage(&msg)) return; |
| } |
| msg.Append('\n'); |
| msg.WriteToLogFile(); |
| #endif |
| } |
| |
| |
| void Logger::CodeCreateEvent(LogEventsAndTags tag, |
| Code* code, String* name, |
| String* source, int line) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log_code) return; |
| LogMessageBuilder msg; |
| SmartPointer<char> str = |
| name->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| SmartPointer<char> sourcestr = |
| source->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| msg.Append("%s,%s,", log_events_[CODE_CREATION_EVENT], log_events_[tag]); |
| msg.AppendAddress(code->address()); |
| msg.Append(",%d,\"%s %s:%d\"", |
| code->ExecutableSize(), *str, *sourcestr, line); |
| if (FLAG_compress_log) { |
| ASSERT(compression_helper_ != NULL); |
| if (!compression_helper_->HandleMessage(&msg)) return; |
| } |
| msg.Append('\n'); |
| msg.WriteToLogFile(); |
| #endif |
| } |
| |
| |
| void Logger::CodeCreateEvent(LogEventsAndTags tag, Code* code, int args_count) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log_code) return; |
| LogMessageBuilder msg; |
| msg.Append("%s,%s,", log_events_[CODE_CREATION_EVENT], log_events_[tag]); |
| msg.AppendAddress(code->address()); |
| msg.Append(",%d,\"args_count: %d\"", code->ExecutableSize(), args_count); |
| if (FLAG_compress_log) { |
| ASSERT(compression_helper_ != NULL); |
| if (!compression_helper_->HandleMessage(&msg)) return; |
| } |
| msg.Append('\n'); |
| msg.WriteToLogFile(); |
| #endif |
| } |
| |
| |
| void Logger::RegExpCodeCreateEvent(Code* code, String* source) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log_code) return; |
| LogMessageBuilder msg; |
| msg.Append("%s,%s,", |
| log_events_[CODE_CREATION_EVENT], log_events_[REG_EXP_TAG]); |
| msg.AppendAddress(code->address()); |
| msg.Append(",%d,\"", code->ExecutableSize()); |
| msg.AppendDetailed(source, false); |
| msg.Append('\"'); |
| if (FLAG_compress_log) { |
| ASSERT(compression_helper_ != NULL); |
| if (!compression_helper_->HandleMessage(&msg)) return; |
| } |
| msg.Append('\n'); |
| msg.WriteToLogFile(); |
| #endif |
| } |
| |
| |
| void Logger::CodeMoveEvent(Address from, Address to) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| MoveEventInternal(CODE_MOVE_EVENT, from, to); |
| #endif |
| } |
| |
| |
| void Logger::CodeDeleteEvent(Address from) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| DeleteEventInternal(CODE_DELETE_EVENT, from); |
| #endif |
| } |
| |
| |
| void Logger::SnapshotPositionEvent(Address addr, int pos) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log_snapshot_positions) return; |
| LogMessageBuilder msg; |
| msg.Append("%s,", log_events_[SNAPSHOT_POSITION_EVENT]); |
| msg.AppendAddress(addr); |
| msg.Append(",%d", pos); |
| if (FLAG_compress_log) { |
| ASSERT(compression_helper_ != NULL); |
| if (!compression_helper_->HandleMessage(&msg)) return; |
| } |
| msg.Append('\n'); |
| msg.WriteToLogFile(); |
| #endif |
| } |
| |
| |
| void Logger::FunctionCreateEvent(JSFunction* function) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| static Address prev_code = NULL; |
| if (!Log::IsEnabled() || !FLAG_log_code) return; |
| LogMessageBuilder msg; |
| msg.Append("%s,", log_events_[FUNCTION_CREATION_EVENT]); |
| msg.AppendAddress(function->address()); |
| msg.Append(','); |
| msg.AppendAddress(function->code()->address(), prev_code); |
| prev_code = function->code()->address(); |
| if (FLAG_compress_log) { |
| ASSERT(compression_helper_ != NULL); |
| if (!compression_helper_->HandleMessage(&msg)) return; |
| } |
| msg.Append('\n'); |
| msg.WriteToLogFile(); |
| #endif |
| } |
| |
| |
| void Logger::FunctionMoveEvent(Address from, Address to) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| MoveEventInternal(FUNCTION_MOVE_EVENT, from, to); |
| #endif |
| } |
| |
| |
| void Logger::FunctionDeleteEvent(Address from) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| DeleteEventInternal(FUNCTION_DELETE_EVENT, from); |
| #endif |
| } |
| |
| |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| void Logger::MoveEventInternal(LogEventsAndTags event, |
| Address from, |
| Address to) { |
| static Address prev_to_ = NULL; |
| if (!Log::IsEnabled() || !FLAG_log_code) return; |
| LogMessageBuilder msg; |
| msg.Append("%s,", log_events_[event]); |
| msg.AppendAddress(from); |
| msg.Append(','); |
| msg.AppendAddress(to, prev_to_); |
| prev_to_ = to; |
| if (FLAG_compress_log) { |
| ASSERT(compression_helper_ != NULL); |
| if (!compression_helper_->HandleMessage(&msg)) return; |
| } |
| msg.Append('\n'); |
| msg.WriteToLogFile(); |
| } |
| #endif |
| |
| |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| void Logger::DeleteEventInternal(LogEventsAndTags event, Address from) { |
| if (!Log::IsEnabled() || !FLAG_log_code) return; |
| LogMessageBuilder msg; |
| msg.Append("%s,", log_events_[event]); |
| msg.AppendAddress(from); |
| if (FLAG_compress_log) { |
| ASSERT(compression_helper_ != NULL); |
| if (!compression_helper_->HandleMessage(&msg)) return; |
| } |
| msg.Append('\n'); |
| msg.WriteToLogFile(); |
| } |
| #endif |
| |
| |
| void Logger::ResourceEvent(const char* name, const char* tag) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log) return; |
| LogMessageBuilder msg; |
| msg.Append("%s,%s,", name, tag); |
| |
| uint32_t sec, usec; |
| if (OS::GetUserTime(&sec, &usec) != -1) { |
| msg.Append("%d,%d,", sec, usec); |
| } |
| msg.Append("%.0f", OS::TimeCurrentMillis()); |
| |
| msg.Append('\n'); |
| msg.WriteToLogFile(); |
| #endif |
| } |
| |
| |
| void Logger::SuspectReadEvent(String* name, Object* obj) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log_suspect) return; |
| LogMessageBuilder msg; |
| String* class_name = obj->IsJSObject() |
| ? JSObject::cast(obj)->class_name() |
| : Heap::empty_string(); |
| msg.Append("suspect-read,"); |
| msg.Append(class_name); |
| msg.Append(','); |
| msg.Append('"'); |
| msg.Append(name); |
| msg.Append('"'); |
| msg.Append('\n'); |
| msg.WriteToLogFile(); |
| #endif |
| } |
| |
| |
| void Logger::HeapSampleBeginEvent(const char* space, const char* kind) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log_gc) return; |
| LogMessageBuilder msg; |
| // Using non-relative system time in order to be able to synchronize with |
| // external memory profiling events (e.g. DOM memory size). |
| msg.Append("heap-sample-begin,\"%s\",\"%s\",%.0f\n", |
| space, kind, OS::TimeCurrentMillis()); |
| msg.WriteToLogFile(); |
| #endif |
| } |
| |
| |
| void Logger::HeapSampleStats(const char* space, const char* kind, |
| int capacity, int used) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log_gc) return; |
| LogMessageBuilder msg; |
| msg.Append("heap-sample-stats,\"%s\",\"%s\",%d,%d\n", |
| space, kind, capacity, used); |
| msg.WriteToLogFile(); |
| #endif |
| } |
| |
| |
| void Logger::HeapSampleEndEvent(const char* space, const char* kind) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log_gc) return; |
| LogMessageBuilder msg; |
| msg.Append("heap-sample-end,\"%s\",\"%s\"\n", space, kind); |
| msg.WriteToLogFile(); |
| #endif |
| } |
| |
| |
| void Logger::HeapSampleItemEvent(const char* type, int number, int bytes) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log_gc) return; |
| LogMessageBuilder msg; |
| msg.Append("heap-sample-item,%s,%d,%d\n", type, number, bytes); |
| msg.WriteToLogFile(); |
| #endif |
| } |
| |
| |
| void Logger::HeapSampleJSConstructorEvent(const char* constructor, |
| int number, int bytes) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log_gc) return; |
| LogMessageBuilder msg; |
| msg.Append("heap-js-cons-item,%s,%d,%d\n", constructor, number, bytes); |
| msg.WriteToLogFile(); |
| #endif |
| } |
| |
| |
| void Logger::HeapSampleJSRetainersEvent( |
| const char* constructor, const char* event) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log_gc) return; |
| // Event starts with comma, so we don't have it in the format string. |
| static const char* event_text = "heap-js-ret-item,%s"; |
| // We take placeholder strings into account, but it's OK to be conservative. |
| static const int event_text_len = StrLength(event_text); |
| const int cons_len = StrLength(constructor); |
| const int event_len = StrLength(event); |
| int pos = 0; |
| // Retainer lists can be long. We may need to split them into multiple events. |
| do { |
| LogMessageBuilder msg; |
| msg.Append(event_text, constructor); |
| int to_write = event_len - pos; |
| if (to_write > Log::kMessageBufferSize - (cons_len + event_text_len)) { |
| int cut_pos = pos + Log::kMessageBufferSize - (cons_len + event_text_len); |
| ASSERT(cut_pos < event_len); |
| while (cut_pos > pos && event[cut_pos] != ',') --cut_pos; |
| if (event[cut_pos] != ',') { |
| // Crash in debug mode, skip in release mode. |
| ASSERT(false); |
| return; |
| } |
| // Append a piece of event that fits, without trailing comma. |
| msg.AppendStringPart(event + pos, cut_pos - pos); |
| // Start next piece with comma. |
| pos = cut_pos; |
| } else { |
| msg.Append("%s", event + pos); |
| pos += event_len; |
| } |
| msg.Append('\n'); |
| msg.WriteToLogFile(); |
| } while (pos < event_len); |
| #endif |
| } |
| |
| |
| void Logger::HeapSampleJSProducerEvent(const char* constructor, |
| Address* stack) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log_gc) return; |
| LogMessageBuilder msg; |
| msg.Append("heap-js-prod-item,%s", constructor); |
| while (*stack != NULL) { |
| msg.Append(",0x%" V8PRIxPTR, *stack++); |
| } |
| msg.Append("\n"); |
| msg.WriteToLogFile(); |
| #endif |
| } |
| |
| |
| void Logger::DebugTag(const char* call_site_tag) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log) return; |
| LogMessageBuilder msg; |
| msg.Append("debug-tag,%s\n", call_site_tag); |
| msg.WriteToLogFile(); |
| #endif |
| } |
| |
| |
| void Logger::DebugEvent(const char* event_type, Vector<uint16_t> parameter) { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| if (!Log::IsEnabled() || !FLAG_log) return; |
| StringBuilder s(parameter.length() + 1); |
| for (int i = 0; i < parameter.length(); ++i) { |
| s.AddCharacter(static_cast<char>(parameter[i])); |
| } |
| char* parameter_string = s.Finalize(); |
| LogMessageBuilder msg; |
| msg.Append("debug-queue-event,%s,%15.3f,%s\n", |
| event_type, |
| OS::TimeCurrentMillis(), |
| parameter_string); |
| DeleteArray(parameter_string); |
| msg.WriteToLogFile(); |
| #endif |
| } |
| |
| |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| void Logger::TickEvent(TickSample* sample, bool overflow) { |
| if (!Log::IsEnabled() || !FLAG_prof) return; |
| static Address prev_sp = NULL; |
| static Address prev_function = NULL; |
| LogMessageBuilder msg; |
| msg.Append("%s,", log_events_[TICK_EVENT]); |
| Address prev_addr = sample->pc; |
| msg.AppendAddress(prev_addr); |
| msg.Append(','); |
| msg.AppendAddress(sample->sp, prev_sp); |
| prev_sp = sample->sp; |
| msg.Append(','); |
| msg.AppendAddress(sample->function, prev_function); |
| prev_function = sample->function; |
| msg.Append(",%d", static_cast<int>(sample->state)); |
| if (overflow) { |
| msg.Append(",overflow"); |
| } |
| for (int i = 0; i < sample->frames_count; ++i) { |
| msg.Append(','); |
| msg.AppendAddress(sample->stack[i], prev_addr); |
| prev_addr = sample->stack[i]; |
| } |
| if (FLAG_compress_log) { |
| ASSERT(compression_helper_ != NULL); |
| if (!compression_helper_->HandleMessage(&msg)) return; |
| } |
| msg.Append('\n'); |
| msg.WriteToLogFile(); |
| } |
| |
| |
| int Logger::GetActiveProfilerModules() { |
| int result = PROFILER_MODULE_NONE; |
| if (!profiler_->paused()) { |
| result |= PROFILER_MODULE_CPU; |
| } |
| if (FLAG_log_gc) { |
| result |= PROFILER_MODULE_HEAP_STATS | PROFILER_MODULE_JS_CONSTRUCTORS; |
| } |
| return result; |
| } |
| |
| |
| void Logger::PauseProfiler(int flags, int tag) { |
| if (!Log::IsEnabled()) return; |
| if (flags & PROFILER_MODULE_CPU) { |
| // It is OK to have negative nesting. |
| if (--cpu_profiler_nesting_ == 0) { |
| profiler_->pause(); |
| if (FLAG_prof_lazy) { |
| if (!FLAG_sliding_state_window) ticker_->Stop(); |
| FLAG_log_code = false; |
| // Must be the same message as Log::kDynamicBufferSeal. |
| LOG(UncheckedStringEvent("profiler", "pause")); |
| } |
| --logging_nesting_; |
| } |
| } |
| if (flags & |
| (PROFILER_MODULE_HEAP_STATS | PROFILER_MODULE_JS_CONSTRUCTORS)) { |
| if (--heap_profiler_nesting_ == 0) { |
| FLAG_log_gc = false; |
| --logging_nesting_; |
| } |
| } |
| if (tag != 0) { |
| UncheckedIntEvent("close-tag", tag); |
| } |
| } |
| |
| |
| void Logger::ResumeProfiler(int flags, int tag) { |
| if (!Log::IsEnabled()) return; |
| if (tag != 0) { |
| UncheckedIntEvent("open-tag", tag); |
| } |
| if (flags & PROFILER_MODULE_CPU) { |
| if (cpu_profiler_nesting_++ == 0) { |
| ++logging_nesting_; |
| if (FLAG_prof_lazy) { |
| profiler_->Engage(); |
| LOG(UncheckedStringEvent("profiler", "resume")); |
| FLAG_log_code = true; |
| LogCompiledFunctions(); |
| LogFunctionObjects(); |
| LogAccessorCallbacks(); |
| if (!FLAG_sliding_state_window) ticker_->Start(); |
| } |
| profiler_->resume(); |
| } |
| } |
| if (flags & |
| (PROFILER_MODULE_HEAP_STATS | PROFILER_MODULE_JS_CONSTRUCTORS)) { |
| if (heap_profiler_nesting_++ == 0) { |
| ++logging_nesting_; |
| FLAG_log_gc = true; |
| } |
| } |
| } |
| |
| |
| // This function can be called when Log's mutex is acquired, |
| // either from main or Profiler's thread. |
| void Logger::StopLoggingAndProfiling() { |
| Log::stop(); |
| PauseProfiler(PROFILER_MODULE_CPU, 0); |
| } |
| |
| |
| bool Logger::IsProfilerSamplerActive() { |
| return ticker_->IsActive(); |
| } |
| |
| |
| int Logger::GetLogLines(int from_pos, char* dest_buf, int max_size) { |
| return Log::GetLogLines(from_pos, dest_buf, max_size); |
| } |
| |
| |
| static int EnumerateCompiledFunctions(Handle<SharedFunctionInfo>* sfis) { |
| AssertNoAllocation no_alloc; |
| int compiled_funcs_count = 0; |
| HeapIterator iterator; |
| for (HeapObject* obj = iterator.next(); obj != NULL; obj = iterator.next()) { |
| if (!obj->IsSharedFunctionInfo()) continue; |
| SharedFunctionInfo* sfi = SharedFunctionInfo::cast(obj); |
| if (sfi->is_compiled() |
| && (!sfi->script()->IsScript() |
| || Script::cast(sfi->script())->HasValidSource())) { |
| if (sfis != NULL) |
| sfis[compiled_funcs_count] = Handle<SharedFunctionInfo>(sfi); |
| ++compiled_funcs_count; |
| } |
| } |
| return compiled_funcs_count; |
| } |
| |
| |
| void Logger::LogCodeObject(Object* object) { |
| if (FLAG_log_code) { |
| Code* code_object = Code::cast(object); |
| LogEventsAndTags tag = Logger::STUB_TAG; |
| const char* description = "Unknown code from the snapshot"; |
| switch (code_object->kind()) { |
| case Code::FUNCTION: |
| return; // We log this later using LogCompiledFunctions. |
| case Code::BINARY_OP_IC: |
| // fall through |
| case Code::STUB: |
| description = CodeStub::MajorName(code_object->major_key(), true); |
| if (description == NULL) |
| description = "A stub from the snapshot"; |
| tag = Logger::STUB_TAG; |
| break; |
| case Code::BUILTIN: |
| description = "A builtin from the snapshot"; |
| tag = Logger::BUILTIN_TAG; |
| break; |
| case Code::KEYED_LOAD_IC: |
| description = "A keyed load IC from the snapshot"; |
| tag = Logger::KEYED_LOAD_IC_TAG; |
| break; |
| case Code::LOAD_IC: |
| description = "A load IC from the snapshot"; |
| tag = Logger::LOAD_IC_TAG; |
| break; |
| case Code::STORE_IC: |
| description = "A store IC from the snapshot"; |
| tag = Logger::STORE_IC_TAG; |
| break; |
| case Code::KEYED_STORE_IC: |
| description = "A keyed store IC from the snapshot"; |
| tag = Logger::KEYED_STORE_IC_TAG; |
| break; |
| case Code::CALL_IC: |
| description = "A call IC from the snapshot"; |
| tag = Logger::CALL_IC_TAG; |
| break; |
| } |
| LOG(CodeCreateEvent(tag, code_object, description)); |
| } |
| } |
| |
| |
| void Logger::LogCodeObjects() { |
| AssertNoAllocation no_alloc; |
| HeapIterator iterator; |
| for (HeapObject* obj = iterator.next(); obj != NULL; obj = iterator.next()) { |
| if (obj->IsCode()) LogCodeObject(obj); |
| } |
| } |
| |
| |
| void Logger::LogCompiledFunctions() { |
| HandleScope scope; |
| const int compiled_funcs_count = EnumerateCompiledFunctions(NULL); |
| Handle<SharedFunctionInfo>* sfis = |
| NewArray< Handle<SharedFunctionInfo> >(compiled_funcs_count); |
| EnumerateCompiledFunctions(sfis); |
| |
| // During iteration, there can be heap allocation due to |
| // GetScriptLineNumber call. |
| for (int i = 0; i < compiled_funcs_count; ++i) { |
| Handle<SharedFunctionInfo> shared = sfis[i]; |
| Handle<String> name(String::cast(shared->name())); |
| Handle<String> func_name(name->length() > 0 ? |
| *name : shared->inferred_name()); |
| if (shared->script()->IsScript()) { |
| Handle<Script> script(Script::cast(shared->script())); |
| if (script->name()->IsString()) { |
| Handle<String> script_name(String::cast(script->name())); |
| int line_num = GetScriptLineNumber(script, shared->start_position()); |
| if (line_num > 0) { |
| LOG(CodeCreateEvent(Logger::LAZY_COMPILE_TAG, |
| shared->code(), *func_name, |
| *script_name, line_num + 1)); |
| } else { |
| // Can't distinguish enum and script here, so always use Script. |
| LOG(CodeCreateEvent(Logger::SCRIPT_TAG, |
| shared->code(), *script_name)); |
| } |
| } else { |
| LOG(CodeCreateEvent( |
| Logger::LAZY_COMPILE_TAG, shared->code(), *func_name)); |
| } |
| } else if (shared->function_data()->IsFunctionTemplateInfo()) { |
| // API function. |
| FunctionTemplateInfo* fun_data = |
| FunctionTemplateInfo::cast(shared->function_data()); |
| Object* raw_call_data = fun_data->call_code(); |
| if (!raw_call_data->IsUndefined()) { |
| CallHandlerInfo* call_data = CallHandlerInfo::cast(raw_call_data); |
| Object* callback_obj = call_data->callback(); |
| Address entry_point = v8::ToCData<Address>(callback_obj); |
| LOG(CallbackEvent(*func_name, entry_point)); |
| } |
| } else { |
| LOG(CodeCreateEvent( |
| Logger::LAZY_COMPILE_TAG, shared->code(), *func_name)); |
| } |
| } |
| |
| DeleteArray(sfis); |
| } |
| |
| |
| void Logger::LogFunctionObjects() { |
| AssertNoAllocation no_alloc; |
| HeapIterator iterator; |
| for (HeapObject* obj = iterator.next(); obj != NULL; obj = iterator.next()) { |
| if (!obj->IsJSFunction()) continue; |
| JSFunction* jsf = JSFunction::cast(obj); |
| if (!jsf->is_compiled()) continue; |
| LOG(FunctionCreateEvent(jsf)); |
| } |
| } |
| |
| |
| void Logger::LogAccessorCallbacks() { |
| AssertNoAllocation no_alloc; |
| HeapIterator iterator; |
| for (HeapObject* obj = iterator.next(); obj != NULL; obj = iterator.next()) { |
| if (!obj->IsAccessorInfo()) continue; |
| AccessorInfo* ai = AccessorInfo::cast(obj); |
| if (!ai->name()->IsString()) continue; |
| String* name = String::cast(ai->name()); |
| Address getter_entry = v8::ToCData<Address>(ai->getter()); |
| if (getter_entry != 0) { |
| LOG(GetterCallbackEvent(name, getter_entry)); |
| } |
| Address setter_entry = v8::ToCData<Address>(ai->setter()); |
| if (setter_entry != 0) { |
| LOG(SetterCallbackEvent(name, setter_entry)); |
| } |
| } |
| } |
| |
| #endif |
| |
| |
| bool Logger::Setup() { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| // --log-all enables all the log flags. |
| if (FLAG_log_all) { |
| FLAG_log_runtime = true; |
| FLAG_log_api = true; |
| FLAG_log_code = true; |
| FLAG_log_gc = true; |
| FLAG_log_suspect = true; |
| FLAG_log_handles = true; |
| FLAG_log_regexp = true; |
| } |
| |
| // --prof implies --log-code. |
| if (FLAG_prof) FLAG_log_code = true; |
| |
| // --prof_lazy controls --log-code, implies --noprof_auto. |
| if (FLAG_prof_lazy) { |
| FLAG_log_code = false; |
| FLAG_prof_auto = false; |
| } |
| |
| bool start_logging = FLAG_log || FLAG_log_runtime || FLAG_log_api |
| || FLAG_log_code || FLAG_log_gc || FLAG_log_handles || FLAG_log_suspect |
| || FLAG_log_regexp || FLAG_log_state_changes; |
| |
| bool open_log_file = start_logging || FLAG_prof_lazy; |
| |
| // If we're logging anything, we need to open the log file. |
| if (open_log_file) { |
| if (strcmp(FLAG_logfile, "-") == 0) { |
| Log::OpenStdout(); |
| } else if (strcmp(FLAG_logfile, "*") == 0) { |
| Log::OpenMemoryBuffer(); |
| } else if (strchr(FLAG_logfile, '%') != NULL) { |
| // If there's a '%' in the log file name we have to expand |
| // placeholders. |
| HeapStringAllocator allocator; |
| StringStream stream(&allocator); |
| for (const char* p = FLAG_logfile; *p; p++) { |
| if (*p == '%') { |
| p++; |
| switch (*p) { |
| case '\0': |
| // If there's a % at the end of the string we back up |
| // one character so we can escape the loop properly. |
| p--; |
| break; |
| case 't': { |
| // %t expands to the current time in milliseconds. |
| double time = OS::TimeCurrentMillis(); |
| stream.Add("%.0f", FmtElm(time)); |
| break; |
| } |
| case '%': |
| // %% expands (contracts really) to %. |
| stream.Put('%'); |
| break; |
| default: |
| // All other %'s expand to themselves. |
| stream.Put('%'); |
| stream.Put(*p); |
| break; |
| } |
| } else { |
| stream.Put(*p); |
| } |
| } |
| SmartPointer<const char> expanded = stream.ToCString(); |
| Log::OpenFile(*expanded); |
| } else { |
| Log::OpenFile(FLAG_logfile); |
| } |
| } |
| |
| current_state_ = &bottom_state_; |
| |
| ticker_ = new Ticker(kSamplingIntervalMs); |
| |
| if (FLAG_sliding_state_window && sliding_state_window_ == NULL) { |
| sliding_state_window_ = new SlidingStateWindow(); |
| } |
| |
| log_events_ = FLAG_compress_log ? |
| kCompressedLogEventsNames : kLongLogEventsNames; |
| if (FLAG_compress_log) { |
| compression_helper_ = new CompressionHelper(kCompressionWindowSize); |
| } |
| |
| if (start_logging) { |
| logging_nesting_ = 1; |
| } |
| |
| if (FLAG_prof) { |
| profiler_ = new Profiler(); |
| if (!FLAG_prof_auto) { |
| profiler_->pause(); |
| } else { |
| logging_nesting_ = 1; |
| } |
| if (!FLAG_prof_lazy) { |
| profiler_->Engage(); |
| } |
| } |
| |
| LogMessageBuilder::set_write_failure_handler(StopLoggingAndProfiling); |
| |
| return true; |
| |
| #else |
| return false; |
| #endif |
| } |
| |
| |
| void Logger::TearDown() { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| LogMessageBuilder::set_write_failure_handler(NULL); |
| |
| // Stop the profiler before closing the file. |
| if (profiler_ != NULL) { |
| profiler_->Disengage(); |
| delete profiler_; |
| profiler_ = NULL; |
| } |
| |
| delete compression_helper_; |
| compression_helper_ = NULL; |
| |
| delete sliding_state_window_; |
| sliding_state_window_ = NULL; |
| |
| delete ticker_; |
| ticker_ = NULL; |
| |
| Log::Close(); |
| #endif |
| } |
| |
| |
| void Logger::EnableSlidingStateWindow() { |
| #ifdef ENABLE_LOGGING_AND_PROFILING |
| // If the ticker is NULL, Logger::Setup has not been called yet. In |
| // that case, we set the sliding_state_window flag so that the |
| // sliding window computation will be started when Logger::Setup is |
| // called. |
| if (ticker_ == NULL) { |
| FLAG_sliding_state_window = true; |
| return; |
| } |
| // Otherwise, if the sliding state window computation has not been |
| // started we do it now. |
| if (sliding_state_window_ == NULL) { |
| sliding_state_window_ = new SlidingStateWindow(); |
| } |
| #endif |
| } |
| |
| |
| } } // namespace v8::internal |