Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1 | // Copyright 2009 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 |
| 4 | // met: |
| 5 | // |
| 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. |
| 15 | // |
| 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. |
| 27 | |
| 28 | #include <stdarg.h> |
| 29 | |
| 30 | #include "v8.h" |
| 31 | |
| 32 | #include "bootstrapper.h" |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame^] | 33 | #include "global-handles.h" |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 34 | #include "log.h" |
| 35 | #include "macro-assembler.h" |
| 36 | #include "serialize.h" |
| 37 | #include "string-stream.h" |
| 38 | |
| 39 | namespace v8 { |
| 40 | namespace internal { |
| 41 | |
| 42 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 43 | |
| 44 | // |
| 45 | // Sliding state window. Updates counters to keep track of the last |
| 46 | // window of kBufferSize states. This is useful to track where we |
| 47 | // spent our time. |
| 48 | // |
| 49 | class SlidingStateWindow { |
| 50 | public: |
| 51 | SlidingStateWindow(); |
| 52 | ~SlidingStateWindow(); |
| 53 | void AddState(StateTag state); |
| 54 | |
| 55 | private: |
| 56 | static const int kBufferSize = 256; |
| 57 | int current_index_; |
| 58 | bool is_full_; |
| 59 | byte buffer_[kBufferSize]; |
| 60 | |
| 61 | |
| 62 | void IncrementStateCounter(StateTag state) { |
| 63 | Counters::state_counters[state].Increment(); |
| 64 | } |
| 65 | |
| 66 | |
| 67 | void DecrementStateCounter(StateTag state) { |
| 68 | Counters::state_counters[state].Decrement(); |
| 69 | } |
| 70 | }; |
| 71 | |
| 72 | |
| 73 | // |
| 74 | // The Profiler samples pc and sp values for the main thread. |
| 75 | // Each sample is appended to a circular buffer. |
| 76 | // An independent thread removes data and writes it to the log. |
| 77 | // This design minimizes the time spent in the sampler. |
| 78 | // |
| 79 | class Profiler: public Thread { |
| 80 | public: |
| 81 | Profiler(); |
| 82 | void Engage(); |
| 83 | void Disengage(); |
| 84 | |
| 85 | // Inserts collected profiling data into buffer. |
| 86 | void Insert(TickSample* sample) { |
| 87 | if (paused_) |
| 88 | return; |
| 89 | |
| 90 | if (Succ(head_) == tail_) { |
| 91 | overflow_ = true; |
| 92 | } else { |
| 93 | buffer_[head_] = *sample; |
| 94 | head_ = Succ(head_); |
| 95 | buffer_semaphore_->Signal(); // Tell we have an element. |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | // Waits for a signal and removes profiling data. |
| 100 | bool Remove(TickSample* sample) { |
| 101 | buffer_semaphore_->Wait(); // Wait for an element. |
| 102 | *sample = buffer_[tail_]; |
| 103 | bool result = overflow_; |
| 104 | tail_ = Succ(tail_); |
| 105 | overflow_ = false; |
| 106 | return result; |
| 107 | } |
| 108 | |
| 109 | void Run(); |
| 110 | |
| 111 | // Pause and Resume TickSample data collection. |
| 112 | static bool paused() { return paused_; } |
| 113 | static void pause() { paused_ = true; } |
| 114 | static void resume() { paused_ = false; } |
| 115 | |
| 116 | private: |
| 117 | // Returns the next index in the cyclic buffer. |
| 118 | int Succ(int index) { return (index + 1) % kBufferSize; } |
| 119 | |
| 120 | // Cyclic buffer for communicating profiling samples |
| 121 | // between the signal handler and the worker thread. |
| 122 | static const int kBufferSize = 128; |
| 123 | TickSample buffer_[kBufferSize]; // Buffer storage. |
| 124 | int head_; // Index to the buffer head. |
| 125 | int tail_; // Index to the buffer tail. |
| 126 | bool overflow_; // Tell whether a buffer overflow has occurred. |
| 127 | Semaphore* buffer_semaphore_; // Sempahore used for buffer synchronization. |
| 128 | |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame^] | 129 | // Tells whether profiler is engaged, that is, processing thread is stated. |
| 130 | bool engaged_; |
| 131 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 132 | // Tells whether worker thread should continue running. |
| 133 | bool running_; |
| 134 | |
| 135 | // Tells whether we are currently recording tick samples. |
| 136 | static bool paused_; |
| 137 | }; |
| 138 | |
| 139 | bool Profiler::paused_ = false; |
| 140 | |
| 141 | |
| 142 | // |
| 143 | // StackTracer implementation |
| 144 | // |
| 145 | void StackTracer::Trace(TickSample* sample) { |
| 146 | if (sample->state == GC) { |
| 147 | sample->frames_count = 0; |
| 148 | return; |
| 149 | } |
| 150 | |
| 151 | const Address js_entry_sp = Top::js_entry_sp(Top::GetCurrentThread()); |
| 152 | if (js_entry_sp == 0) { |
| 153 | // Not executing JS now. |
| 154 | sample->frames_count = 0; |
| 155 | return; |
| 156 | } |
| 157 | |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame^] | 158 | int i = 0; |
| 159 | const Address callback = Logger::current_state_ != NULL ? |
| 160 | Logger::current_state_->external_callback() : NULL; |
| 161 | if (callback != NULL) { |
| 162 | sample->stack[i++] = callback; |
| 163 | } |
| 164 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 165 | SafeStackTraceFrameIterator it( |
| 166 | reinterpret_cast<Address>(sample->fp), |
| 167 | reinterpret_cast<Address>(sample->sp), |
| 168 | reinterpret_cast<Address>(sample->sp), |
| 169 | js_entry_sp); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 170 | while (!it.done() && i < TickSample::kMaxFramesCount) { |
| 171 | sample->stack[i++] = it.frame()->pc(); |
| 172 | it.Advance(); |
| 173 | } |
| 174 | sample->frames_count = i; |
| 175 | } |
| 176 | |
| 177 | |
| 178 | // |
| 179 | // Ticker used to provide ticks to the profiler and the sliding state |
| 180 | // window. |
| 181 | // |
| 182 | class Ticker: public Sampler { |
| 183 | public: |
| 184 | explicit Ticker(int interval): |
| 185 | Sampler(interval, FLAG_prof), window_(NULL), profiler_(NULL) {} |
| 186 | |
| 187 | ~Ticker() { if (IsActive()) Stop(); } |
| 188 | |
| 189 | void SampleStack(TickSample* sample) { |
| 190 | StackTracer::Trace(sample); |
| 191 | } |
| 192 | |
| 193 | void Tick(TickSample* sample) { |
| 194 | if (profiler_) profiler_->Insert(sample); |
| 195 | if (window_) window_->AddState(sample->state); |
| 196 | } |
| 197 | |
| 198 | void SetWindow(SlidingStateWindow* window) { |
| 199 | window_ = window; |
| 200 | if (!IsActive()) Start(); |
| 201 | } |
| 202 | |
| 203 | void ClearWindow() { |
| 204 | window_ = NULL; |
| 205 | if (!profiler_ && IsActive()) Stop(); |
| 206 | } |
| 207 | |
| 208 | void SetProfiler(Profiler* profiler) { |
| 209 | profiler_ = profiler; |
| 210 | if (!FLAG_prof_lazy && !IsActive()) Start(); |
| 211 | } |
| 212 | |
| 213 | void ClearProfiler() { |
| 214 | profiler_ = NULL; |
| 215 | if (!window_ && IsActive()) Stop(); |
| 216 | } |
| 217 | |
| 218 | private: |
| 219 | SlidingStateWindow* window_; |
| 220 | Profiler* profiler_; |
| 221 | }; |
| 222 | |
| 223 | |
| 224 | // |
| 225 | // SlidingStateWindow implementation. |
| 226 | // |
| 227 | SlidingStateWindow::SlidingStateWindow(): current_index_(0), is_full_(false) { |
| 228 | for (int i = 0; i < kBufferSize; i++) { |
| 229 | buffer_[i] = static_cast<byte>(OTHER); |
| 230 | } |
| 231 | Logger::ticker_->SetWindow(this); |
| 232 | } |
| 233 | |
| 234 | |
| 235 | SlidingStateWindow::~SlidingStateWindow() { |
| 236 | Logger::ticker_->ClearWindow(); |
| 237 | } |
| 238 | |
| 239 | |
| 240 | void SlidingStateWindow::AddState(StateTag state) { |
| 241 | if (is_full_) { |
| 242 | DecrementStateCounter(static_cast<StateTag>(buffer_[current_index_])); |
| 243 | } else if (current_index_ == kBufferSize - 1) { |
| 244 | is_full_ = true; |
| 245 | } |
| 246 | buffer_[current_index_] = static_cast<byte>(state); |
| 247 | IncrementStateCounter(state); |
| 248 | ASSERT(IsPowerOf2(kBufferSize)); |
| 249 | current_index_ = (current_index_ + 1) & (kBufferSize - 1); |
| 250 | } |
| 251 | |
| 252 | |
| 253 | // |
| 254 | // Profiler implementation. |
| 255 | // |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame^] | 256 | Profiler::Profiler() |
| 257 | : head_(0), |
| 258 | tail_(0), |
| 259 | overflow_(false), |
| 260 | buffer_semaphore_(OS::CreateSemaphore(0)), |
| 261 | engaged_(false), |
| 262 | running_(false) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 263 | } |
| 264 | |
| 265 | |
| 266 | void Profiler::Engage() { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame^] | 267 | if (engaged_) return; |
| 268 | engaged_ = true; |
| 269 | |
| 270 | // TODO(mnaganov): This is actually "Chromium" mode. Flags need to be revised. |
| 271 | // http://code.google.com/p/v8/issues/detail?id=487 |
| 272 | if (!FLAG_prof_lazy) { |
| 273 | OS::LogSharedLibraryAddresses(); |
| 274 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 275 | |
| 276 | // Start thread processing the profiler buffer. |
| 277 | running_ = true; |
| 278 | Start(); |
| 279 | |
| 280 | // Register to get ticks. |
| 281 | Logger::ticker_->SetProfiler(this); |
| 282 | |
| 283 | Logger::ProfilerBeginEvent(); |
| 284 | Logger::LogAliases(); |
| 285 | } |
| 286 | |
| 287 | |
| 288 | void Profiler::Disengage() { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame^] | 289 | if (!engaged_) return; |
| 290 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 291 | // Stop receiving ticks. |
| 292 | Logger::ticker_->ClearProfiler(); |
| 293 | |
| 294 | // Terminate the worker thread by setting running_ to false, |
| 295 | // inserting a fake element in the queue and then wait for |
| 296 | // the thread to terminate. |
| 297 | running_ = false; |
| 298 | TickSample sample; |
| 299 | // Reset 'paused_' flag, otherwise semaphore may not be signalled. |
| 300 | resume(); |
| 301 | Insert(&sample); |
| 302 | Join(); |
| 303 | |
| 304 | LOG(UncheckedStringEvent("profiler", "end")); |
| 305 | } |
| 306 | |
| 307 | |
| 308 | void Profiler::Run() { |
| 309 | TickSample sample; |
| 310 | bool overflow = Logger::profiler_->Remove(&sample); |
| 311 | while (running_) { |
| 312 | LOG(TickEvent(&sample, overflow)); |
| 313 | overflow = Logger::profiler_->Remove(&sample); |
| 314 | } |
| 315 | } |
| 316 | |
| 317 | |
| 318 | // |
| 319 | // Logger class implementation. |
| 320 | // |
| 321 | Ticker* Logger::ticker_ = NULL; |
| 322 | Profiler* Logger::profiler_ = NULL; |
| 323 | VMState* Logger::current_state_ = NULL; |
| 324 | VMState Logger::bottom_state_(EXTERNAL); |
| 325 | SlidingStateWindow* Logger::sliding_state_window_ = NULL; |
| 326 | const char** Logger::log_events_ = NULL; |
| 327 | CompressionHelper* Logger::compression_helper_ = NULL; |
| 328 | bool Logger::is_logging_ = false; |
| 329 | |
| 330 | #define DECLARE_LONG_EVENT(ignore1, long_name, ignore2) long_name, |
| 331 | const char* kLongLogEventsNames[Logger::NUMBER_OF_LOG_EVENTS] = { |
| 332 | LOG_EVENTS_AND_TAGS_LIST(DECLARE_LONG_EVENT) |
| 333 | }; |
| 334 | #undef DECLARE_LONG_EVENT |
| 335 | |
| 336 | #define DECLARE_SHORT_EVENT(ignore1, ignore2, short_name) short_name, |
| 337 | const char* kCompressedLogEventsNames[Logger::NUMBER_OF_LOG_EVENTS] = { |
| 338 | LOG_EVENTS_AND_TAGS_LIST(DECLARE_SHORT_EVENT) |
| 339 | }; |
| 340 | #undef DECLARE_SHORT_EVENT |
| 341 | |
| 342 | |
| 343 | void Logger::ProfilerBeginEvent() { |
| 344 | if (!Log::IsEnabled()) return; |
| 345 | LogMessageBuilder msg; |
| 346 | msg.Append("profiler,\"begin\",%d\n", kSamplingIntervalMs); |
| 347 | if (FLAG_compress_log) { |
| 348 | msg.Append("profiler,\"compression\",%d\n", kCompressionWindowSize); |
| 349 | } |
| 350 | msg.WriteToLogFile(); |
| 351 | } |
| 352 | |
| 353 | |
| 354 | void Logger::LogAliases() { |
| 355 | if (!Log::IsEnabled() || !FLAG_compress_log) return; |
| 356 | LogMessageBuilder msg; |
| 357 | for (int i = 0; i < NUMBER_OF_LOG_EVENTS; ++i) { |
| 358 | msg.Append("alias,%s,%s\n", |
| 359 | kCompressedLogEventsNames[i], kLongLogEventsNames[i]); |
| 360 | } |
| 361 | msg.WriteToLogFile(); |
| 362 | } |
| 363 | |
| 364 | #endif // ENABLE_LOGGING_AND_PROFILING |
| 365 | |
| 366 | |
| 367 | void Logger::Preamble(const char* content) { |
| 368 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 369 | if (!Log::IsEnabled() || !FLAG_log_code) return; |
| 370 | LogMessageBuilder msg; |
| 371 | msg.WriteCStringToLogFile(content); |
| 372 | #endif |
| 373 | } |
| 374 | |
| 375 | |
| 376 | void Logger::StringEvent(const char* name, const char* value) { |
| 377 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 378 | if (FLAG_log) UncheckedStringEvent(name, value); |
| 379 | #endif |
| 380 | } |
| 381 | |
| 382 | |
| 383 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 384 | void Logger::UncheckedStringEvent(const char* name, const char* value) { |
| 385 | if (!Log::IsEnabled()) return; |
| 386 | LogMessageBuilder msg; |
| 387 | msg.Append("%s,\"%s\"\n", name, value); |
| 388 | msg.WriteToLogFile(); |
| 389 | } |
| 390 | #endif |
| 391 | |
| 392 | |
| 393 | void Logger::IntEvent(const char* name, int value) { |
| 394 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 395 | if (!Log::IsEnabled() || !FLAG_log) return; |
| 396 | LogMessageBuilder msg; |
| 397 | msg.Append("%s,%d\n", name, value); |
| 398 | msg.WriteToLogFile(); |
| 399 | #endif |
| 400 | } |
| 401 | |
| 402 | |
| 403 | void Logger::HandleEvent(const char* name, Object** location) { |
| 404 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 405 | if (!Log::IsEnabled() || !FLAG_log_handles) return; |
| 406 | LogMessageBuilder msg; |
| 407 | msg.Append("%s,0x%" V8PRIxPTR "\n", name, location); |
| 408 | msg.WriteToLogFile(); |
| 409 | #endif |
| 410 | } |
| 411 | |
| 412 | |
| 413 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 414 | // ApiEvent is private so all the calls come from the Logger class. It is the |
| 415 | // caller's responsibility to ensure that log is enabled and that |
| 416 | // FLAG_log_api is true. |
| 417 | void Logger::ApiEvent(const char* format, ...) { |
| 418 | ASSERT(Log::IsEnabled() && FLAG_log_api); |
| 419 | LogMessageBuilder msg; |
| 420 | va_list ap; |
| 421 | va_start(ap, format); |
| 422 | msg.AppendVA(format, ap); |
| 423 | va_end(ap); |
| 424 | msg.WriteToLogFile(); |
| 425 | } |
| 426 | #endif |
| 427 | |
| 428 | |
| 429 | void Logger::ApiNamedSecurityCheck(Object* key) { |
| 430 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 431 | if (!Log::IsEnabled() || !FLAG_log_api) return; |
| 432 | if (key->IsString()) { |
| 433 | SmartPointer<char> str = |
| 434 | String::cast(key)->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| 435 | ApiEvent("api,check-security,\"%s\"\n", *str); |
| 436 | } else if (key->IsUndefined()) { |
| 437 | ApiEvent("api,check-security,undefined\n"); |
| 438 | } else { |
| 439 | ApiEvent("api,check-security,['no-name']\n"); |
| 440 | } |
| 441 | #endif |
| 442 | } |
| 443 | |
| 444 | |
| 445 | void Logger::SharedLibraryEvent(const char* library_path, |
| 446 | uintptr_t start, |
| 447 | uintptr_t end) { |
| 448 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 449 | if (!Log::IsEnabled() || !FLAG_prof) return; |
| 450 | LogMessageBuilder msg; |
| 451 | msg.Append("shared-library,\"%s\",0x%08" V8PRIxPTR ",0x%08" V8PRIxPTR "\n", |
| 452 | library_path, |
| 453 | start, |
| 454 | end); |
| 455 | msg.WriteToLogFile(); |
| 456 | #endif |
| 457 | } |
| 458 | |
| 459 | |
| 460 | void Logger::SharedLibraryEvent(const wchar_t* library_path, |
| 461 | uintptr_t start, |
| 462 | uintptr_t end) { |
| 463 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 464 | if (!Log::IsEnabled() || !FLAG_prof) return; |
| 465 | LogMessageBuilder msg; |
| 466 | msg.Append("shared-library,\"%ls\",0x%08" V8PRIxPTR ",0x%08" V8PRIxPTR "\n", |
| 467 | library_path, |
| 468 | start, |
| 469 | end); |
| 470 | msg.WriteToLogFile(); |
| 471 | #endif |
| 472 | } |
| 473 | |
| 474 | |
| 475 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 476 | void Logger::LogRegExpSource(Handle<JSRegExp> regexp) { |
| 477 | // Prints "/" + re.source + "/" + |
| 478 | // (re.global?"g":"") + (re.ignorecase?"i":"") + (re.multiline?"m":"") |
| 479 | LogMessageBuilder msg; |
| 480 | |
| 481 | Handle<Object> source = GetProperty(regexp, "source"); |
| 482 | if (!source->IsString()) { |
| 483 | msg.Append("no source"); |
| 484 | return; |
| 485 | } |
| 486 | |
| 487 | switch (regexp->TypeTag()) { |
| 488 | case JSRegExp::ATOM: |
| 489 | msg.Append('a'); |
| 490 | break; |
| 491 | default: |
| 492 | break; |
| 493 | } |
| 494 | msg.Append('/'); |
| 495 | msg.AppendDetailed(*Handle<String>::cast(source), false); |
| 496 | msg.Append('/'); |
| 497 | |
| 498 | // global flag |
| 499 | Handle<Object> global = GetProperty(regexp, "global"); |
| 500 | if (global->IsTrue()) { |
| 501 | msg.Append('g'); |
| 502 | } |
| 503 | // ignorecase flag |
| 504 | Handle<Object> ignorecase = GetProperty(regexp, "ignoreCase"); |
| 505 | if (ignorecase->IsTrue()) { |
| 506 | msg.Append('i'); |
| 507 | } |
| 508 | // multiline flag |
| 509 | Handle<Object> multiline = GetProperty(regexp, "multiline"); |
| 510 | if (multiline->IsTrue()) { |
| 511 | msg.Append('m'); |
| 512 | } |
| 513 | |
| 514 | msg.WriteToLogFile(); |
| 515 | } |
| 516 | #endif // ENABLE_LOGGING_AND_PROFILING |
| 517 | |
| 518 | |
| 519 | void Logger::RegExpCompileEvent(Handle<JSRegExp> regexp, bool in_cache) { |
| 520 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 521 | if (!Log::IsEnabled() || !FLAG_log_regexp) return; |
| 522 | LogMessageBuilder msg; |
| 523 | msg.Append("regexp-compile,"); |
| 524 | LogRegExpSource(regexp); |
| 525 | msg.Append(in_cache ? ",hit\n" : ",miss\n"); |
| 526 | msg.WriteToLogFile(); |
| 527 | #endif |
| 528 | } |
| 529 | |
| 530 | |
| 531 | void Logger::LogRuntime(Vector<const char> format, JSArray* args) { |
| 532 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 533 | if (!Log::IsEnabled() || !FLAG_log_runtime) return; |
| 534 | HandleScope scope; |
| 535 | LogMessageBuilder msg; |
| 536 | for (int i = 0; i < format.length(); i++) { |
| 537 | char c = format[i]; |
| 538 | if (c == '%' && i <= format.length() - 2) { |
| 539 | i++; |
| 540 | ASSERT('0' <= format[i] && format[i] <= '9'); |
| 541 | Object* obj = args->GetElement(format[i] - '0'); |
| 542 | i++; |
| 543 | switch (format[i]) { |
| 544 | case 's': |
| 545 | msg.AppendDetailed(String::cast(obj), false); |
| 546 | break; |
| 547 | case 'S': |
| 548 | msg.AppendDetailed(String::cast(obj), true); |
| 549 | break; |
| 550 | case 'r': |
| 551 | Logger::LogRegExpSource(Handle<JSRegExp>(JSRegExp::cast(obj))); |
| 552 | break; |
| 553 | case 'x': |
| 554 | msg.Append("0x%x", Smi::cast(obj)->value()); |
| 555 | break; |
| 556 | case 'i': |
| 557 | msg.Append("%i", Smi::cast(obj)->value()); |
| 558 | break; |
| 559 | default: |
| 560 | UNREACHABLE(); |
| 561 | } |
| 562 | } else { |
| 563 | msg.Append(c); |
| 564 | } |
| 565 | } |
| 566 | msg.Append('\n'); |
| 567 | msg.WriteToLogFile(); |
| 568 | #endif |
| 569 | } |
| 570 | |
| 571 | |
| 572 | void Logger::ApiIndexedSecurityCheck(uint32_t index) { |
| 573 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 574 | if (!Log::IsEnabled() || !FLAG_log_api) return; |
| 575 | ApiEvent("api,check-security,%u\n", index); |
| 576 | #endif |
| 577 | } |
| 578 | |
| 579 | |
| 580 | void Logger::ApiNamedPropertyAccess(const char* tag, |
| 581 | JSObject* holder, |
| 582 | Object* name) { |
| 583 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 584 | ASSERT(name->IsString()); |
| 585 | if (!Log::IsEnabled() || !FLAG_log_api) return; |
| 586 | String* class_name_obj = holder->class_name(); |
| 587 | SmartPointer<char> class_name = |
| 588 | class_name_obj->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| 589 | SmartPointer<char> property_name = |
| 590 | String::cast(name)->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| 591 | Logger::ApiEvent("api,%s,\"%s\",\"%s\"\n", tag, *class_name, *property_name); |
| 592 | #endif |
| 593 | } |
| 594 | |
| 595 | void Logger::ApiIndexedPropertyAccess(const char* tag, |
| 596 | JSObject* holder, |
| 597 | uint32_t index) { |
| 598 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 599 | if (!Log::IsEnabled() || !FLAG_log_api) return; |
| 600 | String* class_name_obj = holder->class_name(); |
| 601 | SmartPointer<char> class_name = |
| 602 | class_name_obj->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| 603 | Logger::ApiEvent("api,%s,\"%s\",%u\n", tag, *class_name, index); |
| 604 | #endif |
| 605 | } |
| 606 | |
| 607 | void Logger::ApiObjectAccess(const char* tag, JSObject* object) { |
| 608 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 609 | if (!Log::IsEnabled() || !FLAG_log_api) return; |
| 610 | String* class_name_obj = object->class_name(); |
| 611 | SmartPointer<char> class_name = |
| 612 | class_name_obj->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| 613 | Logger::ApiEvent("api,%s,\"%s\"\n", tag, *class_name); |
| 614 | #endif |
| 615 | } |
| 616 | |
| 617 | |
| 618 | void Logger::ApiEntryCall(const char* name) { |
| 619 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 620 | if (!Log::IsEnabled() || !FLAG_log_api) return; |
| 621 | Logger::ApiEvent("api,%s\n", name); |
| 622 | #endif |
| 623 | } |
| 624 | |
| 625 | |
| 626 | void Logger::NewEvent(const char* name, void* object, size_t size) { |
| 627 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 628 | if (!Log::IsEnabled() || !FLAG_log) return; |
| 629 | LogMessageBuilder msg; |
| 630 | msg.Append("new,%s,0x%" V8PRIxPTR ",%u\n", name, object, |
| 631 | static_cast<unsigned int>(size)); |
| 632 | msg.WriteToLogFile(); |
| 633 | #endif |
| 634 | } |
| 635 | |
| 636 | |
| 637 | void Logger::DeleteEvent(const char* name, void* object) { |
| 638 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 639 | if (!Log::IsEnabled() || !FLAG_log) return; |
| 640 | LogMessageBuilder msg; |
| 641 | msg.Append("delete,%s,0x%" V8PRIxPTR "\n", name, object); |
| 642 | msg.WriteToLogFile(); |
| 643 | #endif |
| 644 | } |
| 645 | |
| 646 | |
| 647 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 648 | |
| 649 | // A class that contains all common code dealing with record compression. |
| 650 | class CompressionHelper { |
| 651 | public: |
| 652 | explicit CompressionHelper(int window_size) |
| 653 | : compressor_(window_size), repeat_count_(0) { } |
| 654 | |
| 655 | // Handles storing message in compressor, retrieving the previous one and |
| 656 | // prefixing it with repeat count, if needed. |
| 657 | // Returns true if message needs to be written to log. |
| 658 | bool HandleMessage(LogMessageBuilder* msg) { |
| 659 | if (!msg->StoreInCompressor(&compressor_)) { |
| 660 | // Current message repeats the previous one, don't write it. |
| 661 | ++repeat_count_; |
| 662 | return false; |
| 663 | } |
| 664 | if (repeat_count_ == 0) { |
| 665 | return msg->RetrieveCompressedPrevious(&compressor_); |
| 666 | } |
| 667 | OS::SNPrintF(prefix_, "%s,%d,", |
| 668 | Logger::log_events_[Logger::REPEAT_META_EVENT], |
| 669 | repeat_count_ + 1); |
| 670 | repeat_count_ = 0; |
| 671 | return msg->RetrieveCompressedPrevious(&compressor_, prefix_.start()); |
| 672 | } |
| 673 | |
| 674 | private: |
| 675 | LogRecordCompressor compressor_; |
| 676 | int repeat_count_; |
| 677 | EmbeddedVector<char, 20> prefix_; |
| 678 | }; |
| 679 | |
| 680 | #endif // ENABLE_LOGGING_AND_PROFILING |
| 681 | |
| 682 | |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame^] | 683 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 684 | void Logger::CallbackEventInternal(const char* prefix, const char* name, |
| 685 | Address entry_point) { |
| 686 | if (!Log::IsEnabled() || !FLAG_log_code) return; |
| 687 | LogMessageBuilder msg; |
| 688 | msg.Append("%s,%s,", |
| 689 | log_events_[CODE_CREATION_EVENT], log_events_[CALLBACK_TAG]); |
| 690 | msg.AppendAddress(entry_point); |
| 691 | msg.Append(",1,\"%s%s\"", prefix, name); |
| 692 | if (FLAG_compress_log) { |
| 693 | ASSERT(compression_helper_ != NULL); |
| 694 | if (!compression_helper_->HandleMessage(&msg)) return; |
| 695 | } |
| 696 | msg.Append('\n'); |
| 697 | msg.WriteToLogFile(); |
| 698 | } |
| 699 | #endif |
| 700 | |
| 701 | |
| 702 | void Logger::CallbackEvent(String* name, Address entry_point) { |
| 703 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 704 | if (!Log::IsEnabled() || !FLAG_log_code) return; |
| 705 | SmartPointer<char> str = |
| 706 | name->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| 707 | CallbackEventInternal("", *str, entry_point); |
| 708 | #endif |
| 709 | } |
| 710 | |
| 711 | |
| 712 | void Logger::GetterCallbackEvent(String* name, Address entry_point) { |
| 713 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 714 | if (!Log::IsEnabled() || !FLAG_log_code) return; |
| 715 | SmartPointer<char> str = |
| 716 | name->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| 717 | CallbackEventInternal("get ", *str, entry_point); |
| 718 | #endif |
| 719 | } |
| 720 | |
| 721 | |
| 722 | void Logger::SetterCallbackEvent(String* name, Address entry_point) { |
| 723 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 724 | if (!Log::IsEnabled() || !FLAG_log_code) return; |
| 725 | SmartPointer<char> str = |
| 726 | name->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| 727 | CallbackEventInternal("set ", *str, entry_point); |
| 728 | #endif |
| 729 | } |
| 730 | |
| 731 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 732 | void Logger::CodeCreateEvent(LogEventsAndTags tag, |
| 733 | Code* code, |
| 734 | const char* comment) { |
| 735 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 736 | if (!Log::IsEnabled() || !FLAG_log_code) return; |
| 737 | LogMessageBuilder msg; |
| 738 | msg.Append("%s,%s,", log_events_[CODE_CREATION_EVENT], log_events_[tag]); |
| 739 | msg.AppendAddress(code->address()); |
| 740 | msg.Append(",%d,\"", code->ExecutableSize()); |
| 741 | for (const char* p = comment; *p != '\0'; p++) { |
| 742 | if (*p == '"') { |
| 743 | msg.Append('\\'); |
| 744 | } |
| 745 | msg.Append(*p); |
| 746 | } |
| 747 | msg.Append('"'); |
| 748 | if (FLAG_compress_log) { |
| 749 | ASSERT(compression_helper_ != NULL); |
| 750 | if (!compression_helper_->HandleMessage(&msg)) return; |
| 751 | } |
| 752 | msg.Append('\n'); |
| 753 | msg.WriteToLogFile(); |
| 754 | #endif |
| 755 | } |
| 756 | |
| 757 | |
| 758 | void Logger::CodeCreateEvent(LogEventsAndTags tag, Code* code, String* name) { |
| 759 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 760 | if (!Log::IsEnabled() || !FLAG_log_code) return; |
| 761 | LogMessageBuilder msg; |
| 762 | SmartPointer<char> str = |
| 763 | name->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| 764 | msg.Append("%s,%s,", log_events_[CODE_CREATION_EVENT], log_events_[tag]); |
| 765 | msg.AppendAddress(code->address()); |
| 766 | msg.Append(",%d,\"%s\"", code->ExecutableSize(), *str); |
| 767 | if (FLAG_compress_log) { |
| 768 | ASSERT(compression_helper_ != NULL); |
| 769 | if (!compression_helper_->HandleMessage(&msg)) return; |
| 770 | } |
| 771 | msg.Append('\n'); |
| 772 | msg.WriteToLogFile(); |
| 773 | #endif |
| 774 | } |
| 775 | |
| 776 | |
| 777 | void Logger::CodeCreateEvent(LogEventsAndTags tag, |
| 778 | Code* code, String* name, |
| 779 | String* source, int line) { |
| 780 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 781 | if (!Log::IsEnabled() || !FLAG_log_code) return; |
| 782 | LogMessageBuilder msg; |
| 783 | SmartPointer<char> str = |
| 784 | name->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| 785 | SmartPointer<char> sourcestr = |
| 786 | source->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| 787 | msg.Append("%s,%s,", log_events_[CODE_CREATION_EVENT], log_events_[tag]); |
| 788 | msg.AppendAddress(code->address()); |
| 789 | msg.Append(",%d,\"%s %s:%d\"", |
| 790 | code->ExecutableSize(), *str, *sourcestr, line); |
| 791 | if (FLAG_compress_log) { |
| 792 | ASSERT(compression_helper_ != NULL); |
| 793 | if (!compression_helper_->HandleMessage(&msg)) return; |
| 794 | } |
| 795 | msg.Append('\n'); |
| 796 | msg.WriteToLogFile(); |
| 797 | #endif |
| 798 | } |
| 799 | |
| 800 | |
| 801 | void Logger::CodeCreateEvent(LogEventsAndTags tag, Code* code, int args_count) { |
| 802 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 803 | if (!Log::IsEnabled() || !FLAG_log_code) return; |
| 804 | LogMessageBuilder msg; |
| 805 | msg.Append("%s,%s,", log_events_[CODE_CREATION_EVENT], log_events_[tag]); |
| 806 | msg.AppendAddress(code->address()); |
| 807 | msg.Append(",%d,\"args_count: %d\"", code->ExecutableSize(), args_count); |
| 808 | if (FLAG_compress_log) { |
| 809 | ASSERT(compression_helper_ != NULL); |
| 810 | if (!compression_helper_->HandleMessage(&msg)) return; |
| 811 | } |
| 812 | msg.Append('\n'); |
| 813 | msg.WriteToLogFile(); |
| 814 | #endif |
| 815 | } |
| 816 | |
| 817 | |
| 818 | void Logger::RegExpCodeCreateEvent(Code* code, String* source) { |
| 819 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 820 | if (!Log::IsEnabled() || !FLAG_log_code) return; |
| 821 | LogMessageBuilder msg; |
| 822 | msg.Append("%s,%s,", |
| 823 | log_events_[CODE_CREATION_EVENT], log_events_[REG_EXP_TAG]); |
| 824 | msg.AppendAddress(code->address()); |
| 825 | msg.Append(",%d,\"", code->ExecutableSize()); |
| 826 | msg.AppendDetailed(source, false); |
| 827 | msg.Append('\"'); |
| 828 | if (FLAG_compress_log) { |
| 829 | ASSERT(compression_helper_ != NULL); |
| 830 | if (!compression_helper_->HandleMessage(&msg)) return; |
| 831 | } |
| 832 | msg.Append('\n'); |
| 833 | msg.WriteToLogFile(); |
| 834 | #endif |
| 835 | } |
| 836 | |
| 837 | |
| 838 | void Logger::CodeMoveEvent(Address from, Address to) { |
| 839 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 840 | static Address prev_to_ = NULL; |
| 841 | if (!Log::IsEnabled() || !FLAG_log_code) return; |
| 842 | LogMessageBuilder msg; |
| 843 | msg.Append("%s,", log_events_[CODE_MOVE_EVENT]); |
| 844 | msg.AppendAddress(from); |
| 845 | msg.Append(','); |
| 846 | msg.AppendAddress(to, prev_to_); |
| 847 | prev_to_ = to; |
| 848 | if (FLAG_compress_log) { |
| 849 | ASSERT(compression_helper_ != NULL); |
| 850 | if (!compression_helper_->HandleMessage(&msg)) return; |
| 851 | } |
| 852 | msg.Append('\n'); |
| 853 | msg.WriteToLogFile(); |
| 854 | #endif |
| 855 | } |
| 856 | |
| 857 | |
| 858 | void Logger::CodeDeleteEvent(Address from) { |
| 859 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 860 | if (!Log::IsEnabled() || !FLAG_log_code) return; |
| 861 | LogMessageBuilder msg; |
| 862 | msg.Append("%s,", log_events_[CODE_DELETE_EVENT]); |
| 863 | msg.AppendAddress(from); |
| 864 | if (FLAG_compress_log) { |
| 865 | ASSERT(compression_helper_ != NULL); |
| 866 | if (!compression_helper_->HandleMessage(&msg)) return; |
| 867 | } |
| 868 | msg.Append('\n'); |
| 869 | msg.WriteToLogFile(); |
| 870 | #endif |
| 871 | } |
| 872 | |
| 873 | |
| 874 | void Logger::ResourceEvent(const char* name, const char* tag) { |
| 875 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 876 | if (!Log::IsEnabled() || !FLAG_log) return; |
| 877 | LogMessageBuilder msg; |
| 878 | msg.Append("%s,%s,", name, tag); |
| 879 | |
| 880 | uint32_t sec, usec; |
| 881 | if (OS::GetUserTime(&sec, &usec) != -1) { |
| 882 | msg.Append("%d,%d,", sec, usec); |
| 883 | } |
| 884 | msg.Append("%.0f", OS::TimeCurrentMillis()); |
| 885 | |
| 886 | msg.Append('\n'); |
| 887 | msg.WriteToLogFile(); |
| 888 | #endif |
| 889 | } |
| 890 | |
| 891 | |
| 892 | void Logger::SuspectReadEvent(String* name, Object* obj) { |
| 893 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 894 | if (!Log::IsEnabled() || !FLAG_log_suspect) return; |
| 895 | LogMessageBuilder msg; |
| 896 | String* class_name = obj->IsJSObject() |
| 897 | ? JSObject::cast(obj)->class_name() |
| 898 | : Heap::empty_string(); |
| 899 | msg.Append("suspect-read,"); |
| 900 | msg.Append(class_name); |
| 901 | msg.Append(','); |
| 902 | msg.Append('"'); |
| 903 | msg.Append(name); |
| 904 | msg.Append('"'); |
| 905 | msg.Append('\n'); |
| 906 | msg.WriteToLogFile(); |
| 907 | #endif |
| 908 | } |
| 909 | |
| 910 | |
| 911 | void Logger::HeapSampleBeginEvent(const char* space, const char* kind) { |
| 912 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 913 | if (!Log::IsEnabled() || !FLAG_log_gc) return; |
| 914 | LogMessageBuilder msg; |
| 915 | // Using non-relative system time in order to be able to synchronize with |
| 916 | // external memory profiling events (e.g. DOM memory size). |
| 917 | msg.Append("heap-sample-begin,\"%s\",\"%s\",%.0f\n", |
| 918 | space, kind, OS::TimeCurrentMillis()); |
| 919 | msg.WriteToLogFile(); |
| 920 | #endif |
| 921 | } |
| 922 | |
| 923 | |
| 924 | void Logger::HeapSampleStats(const char* space, const char* kind, |
| 925 | int capacity, int used) { |
| 926 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 927 | if (!Log::IsEnabled() || !FLAG_log_gc) return; |
| 928 | LogMessageBuilder msg; |
| 929 | msg.Append("heap-sample-stats,\"%s\",\"%s\",%d,%d\n", |
| 930 | space, kind, capacity, used); |
| 931 | msg.WriteToLogFile(); |
| 932 | #endif |
| 933 | } |
| 934 | |
| 935 | |
| 936 | void Logger::HeapSampleEndEvent(const char* space, const char* kind) { |
| 937 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 938 | if (!Log::IsEnabled() || !FLAG_log_gc) return; |
| 939 | LogMessageBuilder msg; |
| 940 | msg.Append("heap-sample-end,\"%s\",\"%s\"\n", space, kind); |
| 941 | msg.WriteToLogFile(); |
| 942 | #endif |
| 943 | } |
| 944 | |
| 945 | |
| 946 | void Logger::HeapSampleItemEvent(const char* type, int number, int bytes) { |
| 947 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 948 | if (!Log::IsEnabled() || !FLAG_log_gc) return; |
| 949 | LogMessageBuilder msg; |
| 950 | msg.Append("heap-sample-item,%s,%d,%d\n", type, number, bytes); |
| 951 | msg.WriteToLogFile(); |
| 952 | #endif |
| 953 | } |
| 954 | |
| 955 | |
| 956 | void Logger::HeapSampleJSConstructorEvent(const char* constructor, |
| 957 | int number, int bytes) { |
| 958 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 959 | if (!Log::IsEnabled() || !FLAG_log_gc) return; |
| 960 | LogMessageBuilder msg; |
| 961 | msg.Append("heap-js-cons-item,%s,%d,%d\n", constructor, number, bytes); |
| 962 | msg.WriteToLogFile(); |
| 963 | #endif |
| 964 | } |
| 965 | |
| 966 | |
| 967 | void Logger::HeapSampleJSRetainersEvent( |
| 968 | const char* constructor, const char* event) { |
| 969 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 970 | if (!Log::IsEnabled() || !FLAG_log_gc) return; |
| 971 | // Event starts with comma, so we don't have it in the format string. |
| 972 | static const char* event_text = "heap-js-ret-item,%s"; |
| 973 | // We take placeholder strings into account, but it's OK to be conservative. |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame^] | 974 | static const int event_text_len = StrLength(event_text); |
| 975 | const int cons_len = StrLength(constructor); |
| 976 | const int event_len = StrLength(event); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 977 | int pos = 0; |
| 978 | // Retainer lists can be long. We may need to split them into multiple events. |
| 979 | do { |
| 980 | LogMessageBuilder msg; |
| 981 | msg.Append(event_text, constructor); |
| 982 | int to_write = event_len - pos; |
| 983 | if (to_write > Log::kMessageBufferSize - (cons_len + event_text_len)) { |
| 984 | int cut_pos = pos + Log::kMessageBufferSize - (cons_len + event_text_len); |
| 985 | ASSERT(cut_pos < event_len); |
| 986 | while (cut_pos > pos && event[cut_pos] != ',') --cut_pos; |
| 987 | if (event[cut_pos] != ',') { |
| 988 | // Crash in debug mode, skip in release mode. |
| 989 | ASSERT(false); |
| 990 | return; |
| 991 | } |
| 992 | // Append a piece of event that fits, without trailing comma. |
| 993 | msg.AppendStringPart(event + pos, cut_pos - pos); |
| 994 | // Start next piece with comma. |
| 995 | pos = cut_pos; |
| 996 | } else { |
| 997 | msg.Append("%s", event + pos); |
| 998 | pos += event_len; |
| 999 | } |
| 1000 | msg.Append('\n'); |
| 1001 | msg.WriteToLogFile(); |
| 1002 | } while (pos < event_len); |
| 1003 | #endif |
| 1004 | } |
| 1005 | |
| 1006 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1007 | void Logger::HeapSampleJSProducerEvent(const char* constructor, |
| 1008 | Address* stack) { |
| 1009 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 1010 | if (!Log::IsEnabled() || !FLAG_log_gc) return; |
| 1011 | LogMessageBuilder msg; |
| 1012 | msg.Append("heap-js-prod-item,%s", constructor); |
| 1013 | while (*stack != NULL) { |
| 1014 | msg.Append(",0x%" V8PRIxPTR, *stack++); |
| 1015 | } |
| 1016 | msg.Append("\n"); |
| 1017 | msg.WriteToLogFile(); |
| 1018 | #endif |
| 1019 | } |
| 1020 | |
| 1021 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1022 | void Logger::DebugTag(const char* call_site_tag) { |
| 1023 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 1024 | if (!Log::IsEnabled() || !FLAG_log) return; |
| 1025 | LogMessageBuilder msg; |
| 1026 | msg.Append("debug-tag,%s\n", call_site_tag); |
| 1027 | msg.WriteToLogFile(); |
| 1028 | #endif |
| 1029 | } |
| 1030 | |
| 1031 | |
| 1032 | void Logger::DebugEvent(const char* event_type, Vector<uint16_t> parameter) { |
| 1033 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 1034 | if (!Log::IsEnabled() || !FLAG_log) return; |
| 1035 | StringBuilder s(parameter.length() + 1); |
| 1036 | for (int i = 0; i < parameter.length(); ++i) { |
| 1037 | s.AddCharacter(static_cast<char>(parameter[i])); |
| 1038 | } |
| 1039 | char* parameter_string = s.Finalize(); |
| 1040 | LogMessageBuilder msg; |
| 1041 | msg.Append("debug-queue-event,%s,%15.3f,%s\n", |
| 1042 | event_type, |
| 1043 | OS::TimeCurrentMillis(), |
| 1044 | parameter_string); |
| 1045 | DeleteArray(parameter_string); |
| 1046 | msg.WriteToLogFile(); |
| 1047 | #endif |
| 1048 | } |
| 1049 | |
| 1050 | |
| 1051 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 1052 | void Logger::TickEvent(TickSample* sample, bool overflow) { |
| 1053 | if (!Log::IsEnabled() || !FLAG_prof) return; |
| 1054 | static Address prev_sp = NULL; |
| 1055 | LogMessageBuilder msg; |
| 1056 | msg.Append("%s,", log_events_[TICK_EVENT]); |
| 1057 | Address prev_addr = reinterpret_cast<Address>(sample->pc); |
| 1058 | msg.AppendAddress(prev_addr); |
| 1059 | msg.Append(','); |
| 1060 | msg.AppendAddress(reinterpret_cast<Address>(sample->sp), prev_sp); |
| 1061 | prev_sp = reinterpret_cast<Address>(sample->sp); |
| 1062 | msg.Append(",%d", static_cast<int>(sample->state)); |
| 1063 | if (overflow) { |
| 1064 | msg.Append(",overflow"); |
| 1065 | } |
| 1066 | for (int i = 0; i < sample->frames_count; ++i) { |
| 1067 | msg.Append(','); |
| 1068 | msg.AppendAddress(sample->stack[i], prev_addr); |
| 1069 | prev_addr = sample->stack[i]; |
| 1070 | } |
| 1071 | if (FLAG_compress_log) { |
| 1072 | ASSERT(compression_helper_ != NULL); |
| 1073 | if (!compression_helper_->HandleMessage(&msg)) return; |
| 1074 | } |
| 1075 | msg.Append('\n'); |
| 1076 | msg.WriteToLogFile(); |
| 1077 | } |
| 1078 | |
| 1079 | |
| 1080 | int Logger::GetActiveProfilerModules() { |
| 1081 | int result = PROFILER_MODULE_NONE; |
| 1082 | if (!profiler_->paused()) { |
| 1083 | result |= PROFILER_MODULE_CPU; |
| 1084 | } |
| 1085 | if (FLAG_log_gc) { |
| 1086 | result |= PROFILER_MODULE_HEAP_STATS | PROFILER_MODULE_JS_CONSTRUCTORS; |
| 1087 | } |
| 1088 | return result; |
| 1089 | } |
| 1090 | |
| 1091 | |
| 1092 | void Logger::PauseProfiler(int flags) { |
| 1093 | if (!Log::IsEnabled()) return; |
| 1094 | const int active_modules = GetActiveProfilerModules(); |
| 1095 | const int modules_to_disable = active_modules & flags; |
| 1096 | if (modules_to_disable == PROFILER_MODULE_NONE) return; |
| 1097 | |
| 1098 | if (modules_to_disable & PROFILER_MODULE_CPU) { |
| 1099 | profiler_->pause(); |
| 1100 | if (FLAG_prof_lazy) { |
| 1101 | if (!FLAG_sliding_state_window) ticker_->Stop(); |
| 1102 | FLAG_log_code = false; |
| 1103 | // Must be the same message as Log::kDynamicBufferSeal. |
| 1104 | LOG(UncheckedStringEvent("profiler", "pause")); |
| 1105 | } |
| 1106 | } |
| 1107 | if (modules_to_disable & |
| 1108 | (PROFILER_MODULE_HEAP_STATS | PROFILER_MODULE_JS_CONSTRUCTORS)) { |
| 1109 | FLAG_log_gc = false; |
| 1110 | } |
| 1111 | // Turn off logging if no active modules remain. |
| 1112 | if ((active_modules & ~flags) == PROFILER_MODULE_NONE) { |
| 1113 | is_logging_ = false; |
| 1114 | } |
| 1115 | } |
| 1116 | |
| 1117 | |
| 1118 | void Logger::ResumeProfiler(int flags) { |
| 1119 | if (!Log::IsEnabled()) return; |
| 1120 | const int modules_to_enable = ~GetActiveProfilerModules() & flags; |
| 1121 | if (modules_to_enable != PROFILER_MODULE_NONE) { |
| 1122 | is_logging_ = true; |
| 1123 | } |
| 1124 | if (modules_to_enable & PROFILER_MODULE_CPU) { |
| 1125 | if (FLAG_prof_lazy) { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame^] | 1126 | profiler_->Engage(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1127 | LOG(UncheckedStringEvent("profiler", "resume")); |
| 1128 | FLAG_log_code = true; |
| 1129 | LogCompiledFunctions(); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame^] | 1130 | LogAccessorCallbacks(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1131 | if (!FLAG_sliding_state_window) ticker_->Start(); |
| 1132 | } |
| 1133 | profiler_->resume(); |
| 1134 | } |
| 1135 | if (modules_to_enable & |
| 1136 | (PROFILER_MODULE_HEAP_STATS | PROFILER_MODULE_JS_CONSTRUCTORS)) { |
| 1137 | FLAG_log_gc = true; |
| 1138 | } |
| 1139 | } |
| 1140 | |
| 1141 | |
| 1142 | // This function can be called when Log's mutex is acquired, |
| 1143 | // either from main or Profiler's thread. |
| 1144 | void Logger::StopLoggingAndProfiling() { |
| 1145 | Log::stop(); |
| 1146 | PauseProfiler(PROFILER_MODULE_CPU); |
| 1147 | } |
| 1148 | |
| 1149 | |
| 1150 | bool Logger::IsProfilerSamplerActive() { |
| 1151 | return ticker_->IsActive(); |
| 1152 | } |
| 1153 | |
| 1154 | |
| 1155 | int Logger::GetLogLines(int from_pos, char* dest_buf, int max_size) { |
| 1156 | return Log::GetLogLines(from_pos, dest_buf, max_size); |
| 1157 | } |
| 1158 | |
| 1159 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1160 | static int EnumerateCompiledFunctions(Handle<SharedFunctionInfo>* sfis) { |
| 1161 | AssertNoAllocation no_alloc; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1162 | int compiled_funcs_count = 0; |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1163 | HeapIterator iterator; |
| 1164 | while (iterator.has_next()) { |
| 1165 | HeapObject* obj = iterator.next(); |
| 1166 | ASSERT(obj != NULL); |
| 1167 | if (!obj->IsSharedFunctionInfo()) continue; |
| 1168 | SharedFunctionInfo* sfi = SharedFunctionInfo::cast(obj); |
| 1169 | if (sfi->is_compiled() |
| 1170 | && (!sfi->script()->IsScript() |
| 1171 | || Script::cast(sfi->script())->HasValidSource())) { |
| 1172 | if (sfis != NULL) |
| 1173 | sfis[compiled_funcs_count] = Handle<SharedFunctionInfo>(sfi); |
| 1174 | ++compiled_funcs_count; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1175 | } |
| 1176 | } |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1177 | return compiled_funcs_count; |
| 1178 | } |
| 1179 | |
| 1180 | |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame^] | 1181 | void Logger::LogCodeObject(Object* object) { |
| 1182 | if (FLAG_log_code) { |
| 1183 | Code* code_object = Code::cast(object); |
| 1184 | LogEventsAndTags tag = Logger::STUB_TAG; |
| 1185 | const char* description = "Unknown code from the snapshot"; |
| 1186 | switch (code_object->kind()) { |
| 1187 | case Code::FUNCTION: |
| 1188 | return; // We log this later using LogCompiledFunctions. |
| 1189 | case Code::STUB: |
| 1190 | description = CodeStub::MajorName(code_object->major_key()); |
| 1191 | tag = Logger::STUB_TAG; |
| 1192 | break; |
| 1193 | case Code::BUILTIN: |
| 1194 | description = "A builtin from the snapshot"; |
| 1195 | tag = Logger::BUILTIN_TAG; |
| 1196 | break; |
| 1197 | case Code::KEYED_LOAD_IC: |
| 1198 | description = "A keyed load IC from the snapshot"; |
| 1199 | tag = Logger::KEYED_LOAD_IC_TAG; |
| 1200 | break; |
| 1201 | case Code::LOAD_IC: |
| 1202 | description = "A load IC from the snapshot"; |
| 1203 | tag = Logger::LOAD_IC_TAG; |
| 1204 | break; |
| 1205 | case Code::STORE_IC: |
| 1206 | description = "A store IC from the snapshot"; |
| 1207 | tag = Logger::STORE_IC_TAG; |
| 1208 | break; |
| 1209 | case Code::KEYED_STORE_IC: |
| 1210 | description = "A keyed store IC from the snapshot"; |
| 1211 | tag = Logger::KEYED_STORE_IC_TAG; |
| 1212 | break; |
| 1213 | case Code::CALL_IC: |
| 1214 | description = "A call IC from the snapshot"; |
| 1215 | tag = Logger::CALL_IC_TAG; |
| 1216 | break; |
| 1217 | } |
| 1218 | LOG(CodeCreateEvent(tag, code_object, description)); |
| 1219 | } |
| 1220 | } |
| 1221 | |
| 1222 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1223 | void Logger::LogCompiledFunctions() { |
| 1224 | HandleScope scope; |
| 1225 | const int compiled_funcs_count = EnumerateCompiledFunctions(NULL); |
| 1226 | Handle<SharedFunctionInfo>* sfis = |
| 1227 | NewArray< Handle<SharedFunctionInfo> >(compiled_funcs_count); |
| 1228 | EnumerateCompiledFunctions(sfis); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1229 | |
| 1230 | // During iteration, there can be heap allocation due to |
| 1231 | // GetScriptLineNumber call. |
| 1232 | for (int i = 0; i < compiled_funcs_count; ++i) { |
| 1233 | Handle<SharedFunctionInfo> shared = sfis[i]; |
| 1234 | Handle<String> name(String::cast(shared->name())); |
| 1235 | Handle<String> func_name(name->length() > 0 ? |
| 1236 | *name : shared->inferred_name()); |
| 1237 | if (shared->script()->IsScript()) { |
| 1238 | Handle<Script> script(Script::cast(shared->script())); |
| 1239 | if (script->name()->IsString()) { |
| 1240 | Handle<String> script_name(String::cast(script->name())); |
| 1241 | int line_num = GetScriptLineNumber(script, shared->start_position()); |
| 1242 | if (line_num > 0) { |
| 1243 | LOG(CodeCreateEvent(Logger::LAZY_COMPILE_TAG, |
| 1244 | shared->code(), *func_name, |
| 1245 | *script_name, line_num + 1)); |
| 1246 | } else { |
| 1247 | // Can't distinguish enum and script here, so always use Script. |
| 1248 | LOG(CodeCreateEvent(Logger::SCRIPT_TAG, |
| 1249 | shared->code(), *script_name)); |
| 1250 | } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame^] | 1251 | } else { |
| 1252 | LOG(CodeCreateEvent( |
| 1253 | Logger::LAZY_COMPILE_TAG, shared->code(), *func_name)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1254 | } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame^] | 1255 | } else if (shared->function_data()->IsFunctionTemplateInfo()) { |
| 1256 | // API function. |
| 1257 | FunctionTemplateInfo* fun_data = |
| 1258 | FunctionTemplateInfo::cast(shared->function_data()); |
| 1259 | Object* raw_call_data = fun_data->call_code(); |
| 1260 | if (!raw_call_data->IsUndefined()) { |
| 1261 | CallHandlerInfo* call_data = CallHandlerInfo::cast(raw_call_data); |
| 1262 | Object* callback_obj = call_data->callback(); |
| 1263 | Address entry_point = v8::ToCData<Address>(callback_obj); |
| 1264 | LOG(CallbackEvent(*func_name, entry_point)); |
| 1265 | } |
| 1266 | } else { |
| 1267 | LOG(CodeCreateEvent( |
| 1268 | Logger::LAZY_COMPILE_TAG, shared->code(), *func_name)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1269 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1270 | } |
| 1271 | |
| 1272 | DeleteArray(sfis); |
| 1273 | } |
| 1274 | |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame^] | 1275 | |
| 1276 | void Logger::LogAccessorCallbacks() { |
| 1277 | AssertNoAllocation no_alloc; |
| 1278 | HeapIterator iterator; |
| 1279 | while (iterator.has_next()) { |
| 1280 | HeapObject* obj = iterator.next(); |
| 1281 | ASSERT(obj != NULL); |
| 1282 | if (!obj->IsAccessorInfo()) continue; |
| 1283 | AccessorInfo* ai = AccessorInfo::cast(obj); |
| 1284 | if (!ai->name()->IsString()) continue; |
| 1285 | String* name = String::cast(ai->name()); |
| 1286 | Address getter_entry = v8::ToCData<Address>(ai->getter()); |
| 1287 | if (getter_entry != 0) { |
| 1288 | LOG(GetterCallbackEvent(name, getter_entry)); |
| 1289 | } |
| 1290 | Address setter_entry = v8::ToCData<Address>(ai->setter()); |
| 1291 | if (setter_entry != 0) { |
| 1292 | LOG(SetterCallbackEvent(name, setter_entry)); |
| 1293 | } |
| 1294 | } |
| 1295 | } |
| 1296 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1297 | #endif |
| 1298 | |
| 1299 | |
| 1300 | bool Logger::Setup() { |
| 1301 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 1302 | // --log-all enables all the log flags. |
| 1303 | if (FLAG_log_all) { |
| 1304 | FLAG_log_runtime = true; |
| 1305 | FLAG_log_api = true; |
| 1306 | FLAG_log_code = true; |
| 1307 | FLAG_log_gc = true; |
| 1308 | FLAG_log_suspect = true; |
| 1309 | FLAG_log_handles = true; |
| 1310 | FLAG_log_regexp = true; |
| 1311 | } |
| 1312 | |
| 1313 | // --prof implies --log-code. |
| 1314 | if (FLAG_prof) FLAG_log_code = true; |
| 1315 | |
| 1316 | // --prof_lazy controls --log-code, implies --noprof_auto. |
| 1317 | if (FLAG_prof_lazy) { |
| 1318 | FLAG_log_code = false; |
| 1319 | FLAG_prof_auto = false; |
| 1320 | } |
| 1321 | |
| 1322 | bool start_logging = FLAG_log || FLAG_log_runtime || FLAG_log_api |
| 1323 | || FLAG_log_code || FLAG_log_gc || FLAG_log_handles || FLAG_log_suspect |
| 1324 | || FLAG_log_regexp || FLAG_log_state_changes; |
| 1325 | |
| 1326 | bool open_log_file = start_logging || FLAG_prof_lazy; |
| 1327 | |
| 1328 | // If we're logging anything, we need to open the log file. |
| 1329 | if (open_log_file) { |
| 1330 | if (strcmp(FLAG_logfile, "-") == 0) { |
| 1331 | Log::OpenStdout(); |
| 1332 | } else if (strcmp(FLAG_logfile, "*") == 0) { |
| 1333 | Log::OpenMemoryBuffer(); |
| 1334 | } else if (strchr(FLAG_logfile, '%') != NULL) { |
| 1335 | // If there's a '%' in the log file name we have to expand |
| 1336 | // placeholders. |
| 1337 | HeapStringAllocator allocator; |
| 1338 | StringStream stream(&allocator); |
| 1339 | for (const char* p = FLAG_logfile; *p; p++) { |
| 1340 | if (*p == '%') { |
| 1341 | p++; |
| 1342 | switch (*p) { |
| 1343 | case '\0': |
| 1344 | // If there's a % at the end of the string we back up |
| 1345 | // one character so we can escape the loop properly. |
| 1346 | p--; |
| 1347 | break; |
| 1348 | case 't': { |
| 1349 | // %t expands to the current time in milliseconds. |
| 1350 | double time = OS::TimeCurrentMillis(); |
| 1351 | stream.Add("%.0f", FmtElm(time)); |
| 1352 | break; |
| 1353 | } |
| 1354 | case '%': |
| 1355 | // %% expands (contracts really) to %. |
| 1356 | stream.Put('%'); |
| 1357 | break; |
| 1358 | default: |
| 1359 | // All other %'s expand to themselves. |
| 1360 | stream.Put('%'); |
| 1361 | stream.Put(*p); |
| 1362 | break; |
| 1363 | } |
| 1364 | } else { |
| 1365 | stream.Put(*p); |
| 1366 | } |
| 1367 | } |
| 1368 | SmartPointer<const char> expanded = stream.ToCString(); |
| 1369 | Log::OpenFile(*expanded); |
| 1370 | } else { |
| 1371 | Log::OpenFile(FLAG_logfile); |
| 1372 | } |
| 1373 | } |
| 1374 | |
| 1375 | current_state_ = &bottom_state_; |
| 1376 | |
| 1377 | ticker_ = new Ticker(kSamplingIntervalMs); |
| 1378 | |
| 1379 | if (FLAG_sliding_state_window && sliding_state_window_ == NULL) { |
| 1380 | sliding_state_window_ = new SlidingStateWindow(); |
| 1381 | } |
| 1382 | |
| 1383 | log_events_ = FLAG_compress_log ? |
| 1384 | kCompressedLogEventsNames : kLongLogEventsNames; |
| 1385 | if (FLAG_compress_log) { |
| 1386 | compression_helper_ = new CompressionHelper(kCompressionWindowSize); |
| 1387 | } |
| 1388 | |
| 1389 | is_logging_ = start_logging; |
| 1390 | |
| 1391 | if (FLAG_prof) { |
| 1392 | profiler_ = new Profiler(); |
| 1393 | if (!FLAG_prof_auto) { |
| 1394 | profiler_->pause(); |
| 1395 | } else { |
| 1396 | is_logging_ = true; |
| 1397 | } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame^] | 1398 | if (!FLAG_prof_lazy) { |
| 1399 | profiler_->Engage(); |
| 1400 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1401 | } |
| 1402 | |
| 1403 | LogMessageBuilder::set_write_failure_handler(StopLoggingAndProfiling); |
| 1404 | |
| 1405 | return true; |
| 1406 | |
| 1407 | #else |
| 1408 | return false; |
| 1409 | #endif |
| 1410 | } |
| 1411 | |
| 1412 | |
| 1413 | void Logger::TearDown() { |
| 1414 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 1415 | LogMessageBuilder::set_write_failure_handler(NULL); |
| 1416 | |
| 1417 | // Stop the profiler before closing the file. |
| 1418 | if (profiler_ != NULL) { |
| 1419 | profiler_->Disengage(); |
| 1420 | delete profiler_; |
| 1421 | profiler_ = NULL; |
| 1422 | } |
| 1423 | |
| 1424 | delete compression_helper_; |
| 1425 | compression_helper_ = NULL; |
| 1426 | |
| 1427 | delete sliding_state_window_; |
| 1428 | sliding_state_window_ = NULL; |
| 1429 | |
| 1430 | delete ticker_; |
| 1431 | ticker_ = NULL; |
| 1432 | |
| 1433 | Log::Close(); |
| 1434 | #endif |
| 1435 | } |
| 1436 | |
| 1437 | |
| 1438 | void Logger::EnableSlidingStateWindow() { |
| 1439 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 1440 | // If the ticker is NULL, Logger::Setup has not been called yet. In |
| 1441 | // that case, we set the sliding_state_window flag so that the |
| 1442 | // sliding window computation will be started when Logger::Setup is |
| 1443 | // called. |
| 1444 | if (ticker_ == NULL) { |
| 1445 | FLAG_sliding_state_window = true; |
| 1446 | return; |
| 1447 | } |
| 1448 | // Otherwise, if the sliding state window computation has not been |
| 1449 | // started we do it now. |
| 1450 | if (sliding_state_window_ == NULL) { |
| 1451 | sliding_state_window_ = new SlidingStateWindow(); |
| 1452 | } |
| 1453 | #endif |
| 1454 | } |
| 1455 | |
| 1456 | |
| 1457 | } } // namespace v8::internal |