Sampling profiler

runtime/vm/dart.cc

Index: runtime/vm/dart.cc
diff --git a/runtime/vm/dart.cc b/runtime/vm/dart.cc
index e81438f82ce0a89277ed05f9f109e58b744d7469..581cc82fed66bd6cfe03e8aff429598f78ef5c16 100644
--- a/runtime/vm/dart.cc
+++ b/runtime/vm/dart.cc
@@ -16,6 +16,8 @@
 #include "vm/object_store.h"
 #include "vm/object_id_ring.h"
 #include "vm/port.h"
+#include "vm/profiler.h"
+#include "vm/signal_handler.h"
 #include "vm/simulator.h"
 #include "vm/snapshot.h"
 #include "vm/stub_code.h"
@@ -94,6 +96,7 @@ const char* Dart::InitOnce(Dart_IsolateCreateCallback create,
   FreeListElement::InitOnce();
   Api::InitOnce();
   CodeObservers::InitOnce();
+  ProfilerManager::InitOnce();
 #if defined(USING_SIMULATOR)
   Simulator::InitOnce();
 #endif
@@ -168,6 +171,8 @@ const char* Dart::Cleanup() {
   vm_isolate_ = NULL;
 #endif
 
+  ScopedSignalBlocker ssb;
+  ProfilerManager::Shutdown();
   CodeObservers::DeleteAll();
 
   return NULL;