C++ profiles processor: wire up to VM.

src/cpu-profiler.cc

 // Copyright 2010 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.
 
-#ifdef ENABLE_CPP_PROFILES_PROCESSOR
-
 #include "v8.h"
 
 #include "cpu-profiler-inl.h"
 
+#ifdef ENABLE_CPP_PROFILES_PROCESSOR
+
+#include "log-inl.h"
+
 namespace v8 {
 namespace internal {
 
 static const int kEventsBufferSize = 256*KB;
 static const int kTickSamplesBufferChunkSize = 64*KB;
 static const int kTickSamplesBufferChunksCount = 16;
 
 
 ProfilerEventsProcessor::ProfilerEventsProcessor(ProfileGenerator* generator)
     : generator_(generator),
       running_(false),
       events_buffer_(kEventsBufferSize),
       ticks_buffer_(sizeof(TickSampleEventRecord),
                     kTickSamplesBufferChunkSize,
                     kTickSamplesBufferChunksCount),
       enqueue_order_(0) { }
 
 
+void ProfilerEventsProcessor::CallbackCreateEvent(Logger::LogEventsAndTags tag,
+                                                  const char* prefix,
+                                                  String* name,
+                                                  Address start) {
+  CodeEventsContainer evt_rec;
+  CodeCreateEventRecord* rec = &evt_rec.CodeCreateEventRecord_;
+  rec->type = CodeEventRecord::CODE_CREATION;
+  rec->order = ++enqueue_order_;
+  rec->start = start;
+  rec->entry = generator_->NewCodeEntry(tag, prefix, name);
+  rec->size = 1;
+  events_buffer_.Enqueue(evt_rec);
+}
+
+
 void ProfilerEventsProcessor::CodeCreateEvent(Logger::LogEventsAndTags tag,
                                               String* name,
                                               String* resource_name,
                                               int line_number,
                                               Address start,
                                               unsigned size) {
   CodeEventsContainer evt_rec;
   CodeCreateEventRecord* rec = &evt_rec.CodeCreateEventRecord_;
   rec->type = CodeEventRecord::CODE_CREATION;
   rec->order = ++enqueue_order_;
@@ skipping 127 matching lines @@
     }
     YieldCPU();
   }
 
   // Process remaining tick events.
   ticks_buffer_.FlushResidualRecords();
   // Perform processing until we have tick events, skip remaining code events.
   while (ProcessTicks(dequeue_order) && ProcessCodeEvent(&dequeue_order)) { }
 }
 
+
+CpuProfiler* CpuProfiler::singleton_ = NULL;
+
+void CpuProfiler::StartProfiling(const char* title) {
+  ASSERT(singleton_ != NULL);
+  singleton_->StartCollectingProfile(title);
+}
+
+
+void CpuProfiler::StartProfiling(String* title) {
+  ASSERT(singleton_ != NULL);
+  singleton_->StartCollectingProfile(title);
+}
+
+
+CpuProfile* CpuProfiler::StopProfiling(const char* title) {
+  ASSERT(singleton_ != NULL);
+  return singleton_->StopCollectingProfile(title);
+}
+
+
+CpuProfile* CpuProfiler::StopProfiling(String* title) {
+  ASSERT(singleton_ != NULL);
+  return singleton_->StopCollectingProfile(title);
+}
+
+
+int CpuProfiler::GetProfilesCount() {
+  ASSERT(singleton_ != NULL);
+  return singleton_->profiles_->profiles()->length();
+}
+
+
+CpuProfile* CpuProfiler::GetProfile(int index) {
+  ASSERT(singleton_ != NULL);
+  return singleton_->profiles_->profiles()->at(index);
+}
+
+
+CpuProfile* CpuProfiler::FindProfile(unsigned uid) {
+  ASSERT(singleton_ != NULL);
+  return singleton_->profiles_->GetProfile(uid);
+}
+
+
+TickSample* CpuProfiler::TickSampleEvent() {
+  ASSERT(singleton_ != NULL);
+  if (singleton_->is_profiling()) {
+    return singleton_->processor_->TickSampleEvent();
+  } else {
+    return NULL;
+  }
+}
+
+
+void CpuProfiler::CallbackEvent(String* name, Address entry_point) {
+  singleton_->processor_->CallbackCreateEvent(
+      Logger::CALLBACK_TAG, CodeEntry::kEmptyNamePrefix, name, entry_point);
+}
+
+
+void CpuProfiler::CodeCreateEvent(Logger::LogEventsAndTags tag,
+                           Code* code, const char* comment) {
+  singleton_->processor_->CodeCreateEvent(
+      tag, comment, code->address(), code->ExecutableSize());
+}
+
+
+void CpuProfiler::CodeCreateEvent(Logger::LogEventsAndTags tag,
+                           Code* code, String* name) {
+  singleton_->processor_->CodeCreateEvent(
+      tag,
+      name,
+      Heap::empty_string(),
+      CodeEntry::kNoLineNumberInfo,
+      code->address(),
+      code->ExecutableSize());
+}
+
+
+void CpuProfiler::CodeCreateEvent(Logger::LogEventsAndTags tag,
+                           Code* code, String* name,
+                           String* source, int line) {
+  singleton_->processor_->CodeCreateEvent(
+      tag,
+      name,
+      source,
+      line,
+      code->address(),
+      code->ExecutableSize());
+}
+
+
+void CpuProfiler::CodeCreateEvent(Logger::LogEventsAndTags tag,
+                           Code* code, int args_count) {
+  singleton_->processor_->CodeCreateEvent(
+      tag,
+      args_count,
+      code->address(),
+      code->ExecutableSize());
+}
+
+
+void CpuProfiler::CodeMoveEvent(Address from, Address to) {
+  singleton_->processor_->CodeMoveEvent(from, to);
+}
+
+
+void CpuProfiler::CodeDeleteEvent(Address from) {
+  singleton_->processor_->CodeDeleteEvent(from);
+}
+
+
+void CpuProfiler::FunctionCreateEvent(JSFunction* function) {
+  singleton_->processor_->FunctionCreateEvent(
+      function->address(), function->code()->address());
+}
+
+
+void CpuProfiler::FunctionMoveEvent(Address from, Address to) {
+  singleton_->processor_->FunctionMoveEvent(from, to);
+}
+
+
+void CpuProfiler::FunctionDeleteEvent(Address from) {
+  singleton_->processor_->FunctionDeleteEvent(from);
+}
+
+
+void CpuProfiler::GetterCallbackEvent(String* name, Address entry_point) {
+  singleton_->processor_->CallbackCreateEvent(
+      Logger::CALLBACK_TAG, "get ", name, entry_point);
+}
+
+
+void CpuProfiler::RegExpCodeCreateEvent(Code* code, String* source) {
+  singleton_->processor_->CodeCreateEvent(
+      Logger::REG_EXP_TAG,
+      source,
+      Heap::empty_string(),
+      CodeEntry::kNoLineNumberInfo,
+      code->address(),
+      code->ExecutableSize());
+}
+
+
+void CpuProfiler::SetterCallbackEvent(String* name, Address entry_point) {
+  singleton_->processor_->CallbackCreateEvent(
+      Logger::CALLBACK_TAG, "set ", name, entry_point);
+}
+
+
+CpuProfiler::CpuProfiler()
+    : profiles_(new CpuProfilesCollection()),
+      next_profile_uid_(1),
+      generator_(NULL),
+      processor_(NULL) {
+}
+
+
+CpuProfiler::~CpuProfiler() {
+  delete profiles_;
+}
+
+
+void CpuProfiler::StartCollectingProfile(const char* title) {
+  if (profiles_->StartProfiling(title, ++next_profile_uid_)) {
+    StartProcessorIfNotStarted();
+  }
+}
+
+
+void CpuProfiler::StartCollectingProfile(String* title) {
+  if (profiles_->StartProfiling(title, ++next_profile_uid_)) {
+    StartProcessorIfNotStarted();
+  }
+}
+
+
+void CpuProfiler::StartProcessorIfNotStarted() {
+  if (processor_ == NULL) {
+    generator_ = new ProfileGenerator(profiles_);
+    processor_ = new ProfilerEventsProcessor(generator_);
+    processor_->Start();
+    // Enumerate stuff we already have in the heap.
+    if (Heap::HasBeenSetup()) {
+      Logger::LogCodeObjects();
+      Logger::LogCompiledFunctions();
+      Logger::LogFunctionObjects();
+      Logger::LogAccessorCallbacks();
+    }
+    // Enable stack sampling.
+    Logger::ticker_->Start();
+  }
+}
+
+
+CpuProfile* CpuProfiler::StopCollectingProfile(const char* title) {
+  StopProcessorIfLastProfile();
+  CpuProfile* result = profiles_->StopProfiling(title);
+  if (result != NULL) {
+    result->Print();
+  }
+  return result;
+}
+
+
+CpuProfile* CpuProfiler::StopCollectingProfile(String* title) {
+  StopProcessorIfLastProfile();
+  return profiles_->StopProfiling(title);
+}
+
+
+void CpuProfiler::StopProcessorIfLastProfile() {
+  if (profiles_->is_last_profile()) {
+    Logger::ticker_->Stop();
+    processor_->Stop();
+    processor_->Join();
+    delete processor_;
+    delete generator_;
+    processor_ = NULL;
+    generator_ = NULL;
+  }
+}
+
 } }  // namespace v8::internal
 
 #endif  // ENABLE_CPP_PROFILES_PROCESSOR
+
+namespace v8 {
+namespace internal {
+
+void CpuProfiler::Setup() {
+#ifdef ENABLE_CPP_PROFILES_PROCESSOR
+  if (singleton_ == NULL) {
+    singleton_ = new CpuProfiler();
+  }
+#endif
+}
+
+
+void CpuProfiler::TearDown() {
+#ifdef ENABLE_CPP_PROFILES_PROCESSOR
+  if (singleton_ != NULL) {
+    delete singleton_;
+  }
+  singleton_ = NULL;
+#endif
+}
+
+} }  // namespace v8::internal