040000 tree 6039ee08f2d849aa4fae122d5b4605f87b6d3e05	bbr
040000 tree b71e9c754b1e47a50c70767d32b0017c0e38698d	bbsim
040000 tree 99841d1c11ff269663d7599f76ba7a32e6e12cad	bbsimctl
040000 tree 63b72aaabb4b75df50a74a34c66148b8f1921390	common