040000 tree 1aa4387e199130f286a185da617542dc467ef1bc	bbr
040000 tree 30296ecb8dae371f0cec2863b29cd587d504287f	bbsim
040000 tree 60062e61c4f16d1b4bbd85dfb7e7b2900f722895	bbsimctl
040000 tree 5876a8b263ca4deeb69526d7131dad299b3aad4a	common