Unreviewed. Revert r4766, r4767.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4768 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/cpu-profiler.cc

@@ -415,13 +415,14 @@ CpuProfiler::~CpuProfiler() {
 void CpuProfiler::StartCollectingProfile(const char* title) {
   if (profiles_->StartProfiling(title, next_profile_uid_++)) {
     StartProcessorIfNotStarted();
-    generator_->AddCurrentStack();
   }
 }
 
 
 void CpuProfiler::StartCollectingProfile(String* title) {
-  StartCollectingProfile(profiles_->GetName(title));
+  if (profiles_->StartProfiling(title, next_profile_uid_++)) {
+    StartProcessorIfNotStarted();
+  }
 }
 
 

src/profile-generator.cc

@@ -28,7 +28,6 @@
 #ifdef ENABLE_LOGGING_AND_PROFILING
 
 #include "v8.h"
-#include "frames-inl.h"
 #include "global-handles.h"
 
 #include "profile-generator-inl.h"
@@ -808,22 +807,6 @@ void ProfileGenerator::RecordTickSample(const TickSample& sample) {
   profiles_->AddPathToCurrentProfiles(entries);
 }
 
-
-void ProfileGenerator::AddCurrentStack() {
-  TickSample sample;
-  sample.state = VMState::current_state();
-  sample.pc = reinterpret_cast<Address>(&sample);  // Not NULL.
-  sample.frames_count = 0;
-  for (StackTraceFrameIterator it;
-       !it.done() && sample.frames_count < TickSample::kMaxFramesCount;
-       it.Advance()) {
-    JavaScriptFrame* frame = it.frame();
-    sample.stack[sample.frames_count++] =
-        reinterpret_cast<Address>(frame->function());
-  }
-  RecordTickSample(sample);
-}
-
 } }  // namespace v8::internal
 
 #endif  // ENABLE_LOGGING_AND_PROFILING

src/profile-generator.h

@@ -260,7 +260,6 @@ class CpuProfilesCollection {
   CpuProfile* GetProfile(int security_token_id, unsigned uid);
   inline bool is_last_profile();
 
-  const char* GetName(String* name);
   CodeEntry* NewCodeEntry(Logger::LogEventsAndTags tag,
                           String* name, String* resource_name, int line_number);
   CodeEntry* NewCodeEntry(Logger::LogEventsAndTags tag, const char* name);
@@ -275,6 +274,7 @@ class CpuProfilesCollection {
  private:
   INLINE(const char* GetFunctionName(String* name));
   INLINE(const char* GetFunctionName(const char* name));
+  const char* GetName(String* name);
   const char* GetName(int args_count);
   List<CpuProfile*>* GetProfilesList(int security_token_id);
   int TokenToIndex(int security_token_id);
@@ -381,9 +381,6 @@ class ProfileGenerator {
     return sample_rate_calc_.ticks_per_ms();
   }
 
-  // Samples stack and adds it to current profiles.
-  void AddCurrentStack();
-
   static const char* kAnonymousFunctionName;
   static const char* kProgramEntryName;
   static const char* kGarbageCollectorEntryName;

test/cctest/test-profile-generator.cc

@@ -7,14 +7,12 @@
 #include "v8.h"
 #include "profile-generator-inl.h"
 #include "cctest.h"
-#include "../include/v8-profiler.h"
 
 namespace i = v8::internal;
 
 using i::CodeEntry;
 using i::CodeMap;
 using i::CpuProfile;
-using i::CpuProfiler;
 using i::CpuProfilesCollection;
 using i::ProfileNode;
 using i::ProfileTree;
@@ -670,79 +668,4 @@ TEST(SampleRateCalculator) {
   CHECK_EQ(kSamplingIntervalMs * 0.66666, calc3.ticks_per_ms());
 }
 
-
-// --- P r o f i l e r   E x t e n s i o n ---
-
-class ProfilerExtension : public v8::Extension {
- public:
-  ProfilerExtension() : v8::Extension("v8/profiler", kSource) { }
-  virtual v8::Handle<v8::FunctionTemplate> GetNativeFunction(
-      v8::Handle<v8::String> name);
-  static v8::Handle<v8::Value> StartProfiling(const v8::Arguments& args);
-  static v8::Handle<v8::Value> StopProfiling(const v8::Arguments& args);
- private:
-  static const char* kSource;
-};
-
-
-const char* ProfilerExtension::kSource =
-    "native function startProfiling();"
-    "native function stopProfiling();";
-
-v8::Handle<v8::FunctionTemplate> ProfilerExtension::GetNativeFunction(
-    v8::Handle<v8::String> name) {
-  if (name->Equals(v8::String::New("startProfiling"))) {
-    return v8::FunctionTemplate::New(ProfilerExtension::StartProfiling);
-  } else if (name->Equals(v8::String::New("stopProfiling"))) {
-    return v8::FunctionTemplate::New(ProfilerExtension::StopProfiling);
-  } else {
-    CHECK(false);
-    return v8::Handle<v8::FunctionTemplate>();
-  }
-}
-
-
-v8::Handle<v8::Value> ProfilerExtension::StartProfiling(const v8::Arguments& args) {
-  if (args.Length() > 0)
-    v8::CpuProfiler::StartProfiling(args[0].As<v8::String>());
-  else
-    v8::CpuProfiler::StartProfiling(v8::String::New(""));
-  return v8::Undefined();
-}
-
-
-v8::Handle<v8::Value> ProfilerExtension::StopProfiling(const v8::Arguments& args) {
-  if (args.Length() > 0)
-    v8::CpuProfiler::StopProfiling(args[0].As<v8::String>());
-  else
-    v8::CpuProfiler::StopProfiling(v8::String::New(""));
-  return v8::Undefined();
-}
-
-
-static ProfilerExtension kProfilerExtension;
-v8::DeclareExtension kProfilerExtensionDeclaration(&kProfilerExtension);
-static v8::Persistent<v8::Context> env;
-
-TEST(RecordStackTraceAtStartProfiling) {
-  if (env.IsEmpty()) {
-    v8::HandleScope scope;
-    const char* extensions[] = { "v8/profiler" };
-    v8::ExtensionConfiguration config(1, extensions);
-    env = v8::Context::New(&config);
-  }
-  v8::HandleScope scope;
-  env->Enter();
-
-  CHECK_EQ(0, CpuProfiler::GetProfilesCount());
-  CompileRun(
-      "function c() { startProfiling(); }\n"
-      "function b() { c(); }\n"
-      "function a() { b(); }\n"
-      "a();\n"
-      "stopProfiling();"
-  );
-  CHECK_EQ(1, CpuProfiler::GetProfilesCount());
-}
-
 #endif  // ENABLE_LOGGING_AND_PROFILING