Provide more functions to CPU profiler (fix issue 858).

src/cpu-profiler.h

Index: src/cpu-profiler.h
diff --git a/src/cpu-profiler.h b/src/cpu-profiler.h
index 4d5559e4febdc9de02a7ca105e007347a6686170..86f9f6711f9f21713130f24fcdea3e61149112ef 100644
--- a/src/cpu-profiler.h
+++ b/src/cpu-profiler.h
@@ -41,6 +41,7 @@ class CodeEntry;
 class CodeMap;
 class CpuProfile;
 class CpuProfilesCollection;
+class HashMap;
 class ProfileGenerator;
 class TokenEnumerator;
 
@@ -132,7 +133,7 @@ class TickSampleEventRecord BASE_EMBEDDED {
 class ProfilerEventsProcessor : public Thread {
  public:
   explicit ProfilerEventsProcessor(ProfileGenerator* generator);
-  virtual ~ProfilerEventsProcessor() { }
+  virtual ~ProfilerEventsProcessor();
 
   // Thread control.
   virtual void Run();
@@ -163,6 +164,7 @@ class ProfilerEventsProcessor : public Thread {
                              Address start, unsigned size);
   // Puts current stack into tick sample events buffer.
   void AddCurrentStack();
+  bool IsKnownFunction(Address start);
 
   // Tick sample events are filled directly in the buffer of the circular
   // queue (because the structure is of fixed width, but usually not all
@@ -183,6 +185,13 @@ class ProfilerEventsProcessor : public Thread {
   bool ProcessTicks(unsigned dequeue_order);
 
   INLINE(static bool FilterOutCodeCreateEvent(Logger::LogEventsAndTags tag));
+  INLINE(static bool AddressesMatch(void* key1, void* key2)) {
+    return key1 == key2;
+  }
+  INLINE(static uint32_t AddressHash(Address addr)) {
+    return ComputeIntegerHash(
+        static_cast<uint32_t>(reinterpret_cast<uintptr_t>(addr)));
+  }
 
   ProfileGenerator* generator_;
   bool running_;
@@ -190,6 +199,9 @@ class ProfilerEventsProcessor : public Thread {
   SamplingCircularQueue ticks_buffer_;
   UnboundQueue<TickSampleEventRecord> ticks_from_vm_buffer_;
   unsigned enqueue_order_;
+
+  // Used from the VM thread.
+  HashMap* known_functions_;
 };
 
 } }  // namespace v8::internal
@@ -242,6 +254,10 @@ class CpuProfiler {
   static void CodeMoveEvent(Address from, Address to);
   static void CodeDeleteEvent(Address from);
   static void FunctionCreateEvent(JSFunction* function);
+  // Reports function creation in case we had missed it (e.g.
+  // if it was created from compiled code).
+  static void FunctionCreateEventFromMove(JSFunction* function,
+                                          HeapObject* source);
   static void FunctionMoveEvent(Address from, Address to);
   static void FunctionDeleteEvent(Address from);
   static void GetterCallbackEvent(String* name, Address entry_point);