040000 tree 6039ee08f2d849aa4fae122d5b4605f87b6d3e05	bbr
040000 tree 0dc46f83e2498b5c7a2dcf34a8add936743fedd3	bbsim
040000 tree e901fb7ff40e003e6a4998e7fc4e94d22d6652f1	bbsimctl
040000 tree db31aa64ea812a8f7720228ec6d3b3c6a04a4a3d	common