diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index 11c3db0..40d89bd 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -2004,6 +2004,16 @@
     layerInfo->set_refresh_pending(isBufferLatched());
     layerInfo->set_window_type(state.type);
     layerInfo->set_app_id(state.appId);
+    layerInfo->set_curr_frame(mCurrentFrameNumber);
+
+    for (const auto& pendingState : mPendingStates) {
+        auto barrierLayer = pendingState.barrierLayer.promote();
+        if (barrierLayer != nullptr) {
+            BarrierLayerProto* barrierLayerProto = layerInfo->add_barrier_layer();
+            barrierLayerProto->set_id(barrierLayer->sequence);
+            barrierLayerProto->set_frame_number(pendingState.frameNumber);
+        }
+    }
 }
 
 void Layer::writeToProto(LayerProto* layerInfo, int32_t displayId) {
diff --git a/services/surfaceflinger/layerproto/layers.proto b/services/surfaceflinger/layerproto/layers.proto
index eb34694..e34772f 100644
--- a/services/surfaceflinger/layerproto/layers.proto
+++ b/services/surfaceflinger/layerproto/layers.proto
@@ -82,6 +82,10 @@
   optional bool is_protected = 36;
   // If active_buffer is not null, record its transform
   optional TransformProto buffer_transform = 37;
+  // Current frame number being rendered.
+  optional uint64 curr_frame = 38;
+  // A list of barriers that the layer is waiting to update state.
+  repeated BarrierLayerProto barrier_layer = 39;
 }
 
 message PositionProto {
@@ -133,3 +137,10 @@
   optional float b = 3;
   optional float a = 4;
 }
+
+message BarrierLayerProto {
+  // layer id the barrier is waiting on.
+  optional int32 id = 1;
+  // frame number the barrier is waiting on.
+  optional uint64 frame_number = 2;
+}