040000 tree 6039ee08f2d849aa4fae122d5b4605f87b6d3e05	bbr
040000 tree 31df24426ebf0c48f851ace6bcf656b3d8bc826e	bbsim
040000 tree f7cb70202a09c305297f39cb33109ccde3ecb1b7	bbsimctl
040000 tree b1921fa9fbf2ac678fc191df4d6ccaf0433e16e7	common