diff --git a/runtime/runtime_callbacks.cc b/runtime/runtime_callbacks.cc
index cd38ead..7b15a4f 100644
--- a/runtime/runtime_callbacks.cc
+++ b/runtime/runtime_callbacks.cc
@@ -87,4 +87,18 @@
   }
 }
 
+void RuntimeCallbacks::AddRuntimePhaseCallback(RuntimePhaseCallback* cb) {
+  phase_callbacks_.push_back(cb);
+}
+
+void RuntimeCallbacks::RemoveRuntimePhaseCallback(RuntimePhaseCallback* cb) {
+  Remove(cb, &phase_callbacks_);
+}
+
+void RuntimeCallbacks::NextRuntimePhase(RuntimePhaseCallback::RuntimePhase phase) {
+  for (RuntimePhaseCallback* cb : phase_callbacks_) {
+    cb->NextRuntimePhase(phase);
+  }
+}
+
 }  // namespace art