[Interpreter] Add support for cpu profiler logging.

src/isolate.cc

Index: src/isolate.cc
diff --git a/src/isolate.cc b/src/isolate.cc
index 8eb8b71b39347918cf32ef3c7127e410a3340bd4..8120ab7f2a7c7c92f2f2a27267bc00ae9081b1f7 100644
--- a/src/isolate.cc
+++ b/src/isolate.cc
@@ -1802,6 +1802,10 @@ Isolate::Isolate(bool enable_serializer)
       stress_deopt_count_(0),
       virtual_handler_register_(NULL),
       virtual_slot_register_(NULL),
+      interpreter_entry_trampoline_start_(NULL),
+      interpreter_entry_trampoline_end_(NULL),
+      interpreter_bytecode_dispatch_start_(NULL),
+      interpreter_bytecode_dispatch_end_(NULL),
       next_optimization_id_(0),
       js_calls_from_api_counter_(0),
 #if TRACE_MAPS
@@ -2227,6 +2231,15 @@ bool Isolate::Init(Deserializer* des) {
 
   if (FLAG_ignition) {
     interpreter_->Initialize();
+
+    Handle<Code> entry_trampoine = builtins()->InterpreterEntryTrampoline();
+    interpreter_entry_trampoline_start_ = entry_trampoine->instruction_start();
+    interpreter_entry_trampoline_end_ = entry_trampoine->instruction_end();
+    Handle<Code> bytecode_dispatch =
+        builtins()->InterpreterEnterBytecodeDispatch();
+    interpreter_bytecode_dispatch_start_ =
+        bytecode_dispatch->instruction_start();
+    interpreter_bytecode_dispatch_end_ = bytecode_dispatch->instruction_end();
   }
 
   // Finish initialization of ThreadLocal after deserialization is done.