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Issue 10837021: add ETW for V8 symbols
Patch Set: Created 8 years, 4 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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70 // Collect statistical profiling information (ticks), default is off. The 70 // Collect statistical profiling information (ticks), default is off. The
71 // tick profiler requires code events, so --prof implies --log-code. 71 // tick profiler requires code events, so --prof implies --log-code.
72 72
73 // Forward declarations. 73 // Forward declarations.
74 class LogMessageBuilder; 74 class LogMessageBuilder;
75 class Profiler; 75 class Profiler;
76 class Semaphore; 76 class Semaphore;
77 class SlidingStateWindow; 77 class SlidingStateWindow;
78 class Ticker; 78 class Ticker;
79 79
80
80 #undef LOG 81 #undef LOG
81 #define LOG(isolate, Call) \ 82 #define LOG(isolate, Call) \
82 do { \ 83 do { \
83 v8::internal::Logger* logger = \ 84 v8::internal::Logger* logger = \
84 (isolate)->logger(); \ 85 (isolate)->logger(); \
85 if (logger->is_logging()) \ 86 if (logger->is_logging()) \
86 logger->Call; \ 87 logger->Call; \
87 } while (false) 88 } while (false)
88 89
89 #define LOG_EVENTS_AND_TAGS_LIST(V) \ 90 #define LOG_EVENTS_AND_TAGS_LIST(V) \
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264 265
265 // ==== Events logged by --log-regexp ==== 266 // ==== Events logged by --log-regexp ====
266 // Regexp compilation and execution events. 267 // Regexp compilation and execution events.
267 268
268 void RegExpCompileEvent(Handle<JSRegExp> regexp, bool in_cache); 269 void RegExpCompileEvent(Handle<JSRegExp> regexp, bool in_cache);
269 270
270 // Log an event reported from generated code 271 // Log an event reported from generated code
271 void LogRuntime(Vector<const char> format, JSArray* args); 272 void LogRuntime(Vector<const char> format, JSArray* args);
272 273
273 bool is_logging() { 274 bool is_logging() {
274 return logging_nesting_ > 0; 275 return logging_nesting_ > 0 || CodeAddressCallbackEnabled();
275 } 276 }
276 277
277 // Pause/Resume collection of profiling data. 278 // Pause/Resume collection of profiling data.
278 // When data collection is paused, CPU Tick events are discarded until 279 // When data collection is paused, CPU Tick events are discarded until
279 // data collection is Resumed. 280 // data collection is Resumed.
280 void PauseProfiler(); 281 void PauseProfiler();
281 void ResumeProfiler(); 282 void ResumeProfiler();
282 bool IsProfilerPaused(); 283 bool IsProfilerPaused();
283 284
284 void LogExistingFunction(Handle<SharedFunctionInfo> shared, 285 void LogExistingFunction(Handle<SharedFunctionInfo> shared,
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364 // Logs a StringEvent regardless of whether FLAG_log is true. 365 // Logs a StringEvent regardless of whether FLAG_log is true.
365 void UncheckedStringEvent(const char* name, const char* value); 366 void UncheckedStringEvent(const char* name, const char* value);
366 367
367 // Logs an IntEvent regardless of whether FLAG_log is true. 368 // Logs an IntEvent regardless of whether FLAG_log is true.
368 void UncheckedIntEvent(const char* name, int value); 369 void UncheckedIntEvent(const char* name, int value);
369 void UncheckedIntPtrTEvent(const char* name, intptr_t value); 370 void UncheckedIntPtrTEvent(const char* name, intptr_t value);
370 371
371 // Returns whether profiler's sampler is active. 372 // Returns whether profiler's sampler is active.
372 bool IsProfilerSamplerActive(); 373 bool IsProfilerSamplerActive();
373 374
375 // Returns whether symbol callback is enabled.
376 bool CodeAddressCallbackEnabled();
377
374 // The sampler used by the profiler and the sliding state window. 378 // The sampler used by the profiler and the sliding state window.
375 Ticker* ticker_; 379 Ticker* ticker_;
376 380
377 // When the statistical profile is active, profiler_ 381 // When the statistical profile is active, profiler_
378 // points to a Profiler, that handles collection 382 // points to a Profiler, that handles collection
379 // of samples. 383 // of samples.
380 Profiler* profiler_; 384 Profiler* profiler_;
381 385
382 // SlidingStateWindow instance keeping a sliding window of the most 386 // SlidingStateWindow instance keeping a sliding window of the most
383 // recent VM states. 387 // recent VM states.
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418 Address last_address_; 422 Address last_address_;
419 // Logger::TickEvent(...) 423 // Logger::TickEvent(...)
420 Address prev_sp_; 424 Address prev_sp_;
421 Address prev_function_; 425 Address prev_function_;
422 // Logger::MoveEventInternal(...) 426 // Logger::MoveEventInternal(...)
423 Address prev_to_; 427 Address prev_to_;
424 // Logger::FunctionCreateEvent(...) 428 // Logger::FunctionCreateEvent(...)
425 Address prev_code_; 429 Address prev_code_;
426 430
427 friend class CpuProfiler; 431 friend class CpuProfiler;
432
433 friend class CodeAddressNotification;
434
435 int notified_reset_;
428 }; 436 };
429 437
430 438
439 class CodeAddressNotification {
440 public:
441 // called by host to set callbacks - null turns off callbacks
442 static void SetCodeAddressEventCallback(CodeAddressEvent cb,
443 bool enumExisting);
444
445 // called by v8 when a symbol map is created or changed
446 static void WriteSymbolMap(Logger* logger,
447 CodeAddressOperation op,
448 const void* addr1,
449 int len,
450 const char* symbol,
451 Logger::LogEventsAndTags tag,
452 const void* addr2,
453 int line);
454
455 // called by v8 to determine if callbacks are enabled
456 static bool IsEnabled();
457
458 };
459
460
431 // Process wide registry of samplers. 461 // Process wide registry of samplers.
432 class SamplerRegistry : public AllStatic { 462 class SamplerRegistry : public AllStatic {
433 public: 463 public:
434 enum State { 464 enum State {
435 HAS_NO_SAMPLERS, 465 HAS_NO_SAMPLERS,
436 HAS_SAMPLERS, 466 HAS_SAMPLERS,
437 HAS_CPU_PROFILING_SAMPLERS 467 HAS_CPU_PROFILING_SAMPLERS
438 }; 468 };
439 469
440 static void SetUp(); 470 static void SetUp();
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465 // Class that extracts stack trace, used for profiling. 495 // Class that extracts stack trace, used for profiling.
466 class StackTracer : public AllStatic { 496 class StackTracer : public AllStatic {
467 public: 497 public:
468 static void Trace(Isolate* isolate, TickSample* sample); 498 static void Trace(Isolate* isolate, TickSample* sample);
469 }; 499 };
470 500
471 } } // namespace v8::internal 501 } } // namespace v8::internal
472 502
473 503
474 #endif // V8_LOG_H_ 504 #endif // V8_LOG_H_
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