040000 tree 6039ee08f2d849aa4fae122d5b4605f87b6d3e05	bbr
040000 tree a919dd6dbbdd469e237ad64c5a79e9a2fb0ab559	bbsim
040000 tree 99841d1c11ff269663d7599f76ba7a32e6e12cad	bbsimctl
040000 tree e5badf2a07ba5edc9c57b18fb4a5d6ba6a969b69	common