040000 tree 2ff6c141f4a78d08c7a9e87adeab9a844b741e9f	bbr
040000 tree 1b3d510bf846d510f25a6da29a8a1f5eb0b7ae07	bbsim
040000 tree dae819eaed5d941a44b0c16783a0c79cfe8bdfd9	bbsimctl
040000 tree 9ba36136c8ceaa45356de79e8af2bc180d65dd62	common