src: start heap object tracking after platform is initialized

Garbage collection is triggered by the heap object tracker. The garbage collector may spawn garbage collection tasks on the foreground thread. This is only allowed after registering the isolate in the platform which happens in IsolateData. This CL moves the starting of the heap object tracker after calling IsolateData to ensure that. PR-URL: #17249 Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Franziska Hinkelmann <[email protected]> Reviewed-By: Timothy Gu <[email protected]> Reviewed-by: Michael Lippautz <[email protected]>
nodejs · Dec 12, 2017 · 4667c5e · 4667c5e
1 parent 0488782
commit 4667c5e
Showing 1 changed file with 3 additions and 4 deletions.
diff --git a/src/node.cc b/src/node.cc
@@ -4887,10 +4887,6 @@ inline int Start(uv_loop_t* event_loop,
   isolate->SetAutorunMicrotasks(false);
   isolate->SetFatalErrorHandler(OnFatalError);
 
-  if (track_heap_objects) {
-    isolate->GetHeapProfiler()->StartTrackingHeapObjects(true);
-  }
-
   {
     Mutex::ScopedLock scoped_lock(node_isolate_mutex);
     CHECK_EQ(node_isolate, nullptr);
@@ -4907,6 +4903,9 @@ inline int Start(uv_loop_t* event_loop,
         event_loop,
         v8_platform.Platform(),
         allocator.zero_fill_field());
+    if (track_heap_objects) {
+      isolate->GetHeapProfiler()->StartTrackingHeapObjects(true);
+    }
     exit_code = Start(isolate, &isolate_data, argc, argv, exec_argc, exec_argv);
   }