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

src/cpu-profiler.h

 // 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
@@ skipping 23 matching lines @@
 #include "unbound-queue.h"
 
 namespace v8 {
 namespace internal {
 
 // Forward declarations.
 class CodeEntry;
 class CodeMap;
 class CpuProfile;
 class CpuProfilesCollection;
+class HashMap;
 class ProfileGenerator;
 class TokenEnumerator;
 
 #define CODE_EVENTS_TYPE_LIST(V)                \
   V(CODE_CREATION, CodeCreateEventRecord)       \
   V(CODE_MOVE,     CodeMoveEventRecord)         \
   V(CODE_DELETE,   CodeDeleteEventRecord)       \
   V(CODE_ALIAS,    CodeAliasEventRecord)
 
 
@@ skipping 71 matching lines @@
 
   INLINE(static TickSampleEventRecord* init(void* value));
 };
 
 
 // This class implements both the profile events processor thread and
 // methods called by event producers: VM and stack sampler threads.
 class ProfilerEventsProcessor : public Thread {
  public:
   explicit ProfilerEventsProcessor(ProfileGenerator* generator);
-  virtual ~ProfilerEventsProcessor() { }
+  virtual ~ProfilerEventsProcessor();
 
   // Thread control.
   virtual void Run();
   inline void Stop() { running_ = false; }
   INLINE(bool running()) { return running_; }
 
   // Events adding methods. Called by VM threads.
   void CallbackCreateEvent(Logger::LogEventsAndTags tag,
                            const char* prefix, String* name,
                            Address start);
@@ skipping 10 matching lines @@
   void CodeMoveEvent(Address from, Address to);
   void CodeDeleteEvent(Address from);
   void FunctionCreateEvent(Address alias, Address start, int security_token_id);
   void FunctionMoveEvent(Address from, Address to);
   void FunctionDeleteEvent(Address from);
   void RegExpCodeCreateEvent(Logger::LogEventsAndTags tag,
                              const char* prefix, String* name,
                              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
   // stack frame entries are filled.) This method returns a pointer to the
   // next record of the buffer.
   INLINE(TickSample* TickSampleEvent());
 
  private:
   union CodeEventsContainer {
     CodeEventRecord generic;
 #define DECLARE_CLASS(ignore, type) type type##_;
     CODE_EVENTS_TYPE_LIST(DECLARE_CLASS)
 #undef DECLARE_TYPE
   };
 
   // Called from events processing thread (Run() method.)
   bool ProcessCodeEvent(unsigned* dequeue_order);
   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_;
   UnboundQueue<CodeEventsContainer> events_buffer_;
   SamplingCircularQueue ticks_buffer_;
   UnboundQueue<TickSampleEventRecord> ticks_from_vm_buffer_;
   unsigned enqueue_order_;
+
+  // Used from the VM thread.
+  HashMap* known_functions_;
 };
 
 } }  // namespace v8::internal
 
 
 #define PROFILE(Call)                                  \
   LOG(Call);                                           \
   do {                                                 \
     if (v8::internal::CpuProfiler::is_profiling()) {   \
       v8::internal::CpuProfiler::Call;                 \
@@ skipping 32 matching lines @@
   static void CodeCreateEvent(Logger::LogEventsAndTags tag,
                               Code* code, String* name);
   static void CodeCreateEvent(Logger::LogEventsAndTags tag,
                               Code* code, String* name,
                               String* source, int line);
   static void CodeCreateEvent(Logger::LogEventsAndTags tag,
                               Code* code, int args_count);
   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);
   static void RegExpCodeCreateEvent(Code* code, String* source);
   static void SetterCallbackEvent(String* name, Address entry_point);
 
   static INLINE(bool is_profiling()) {
     return singleton_ != NULL && singleton_->processor_ != NULL;
   }
 
@@ skipping 21 matching lines @@
 #endif  // ENABLE_LOGGING_AND_PROFILING
 
  private:
   DISALLOW_COPY_AND_ASSIGN(CpuProfiler);
 };
 
 } }  // namespace v8::internal
 
 
 #endif  // V8_CPU_PROFILER_H_