040000 tree 42525f64033df2e44b097b9c72057504debed768	bbr
040000 tree a03900c86a7e074e97b6d40fca36bb0fbe4d0b8b	bbsim
040000 tree d55c4ee0e34c93022bdf14b7b1726b25206f2570	bbsimctl
040000 tree 586be26c68dcfaaeba8b1349ae39769823da5ba4	common