040000 tree 6039ee08f2d849aa4fae122d5b4605f87b6d3e05	bbr
040000 tree 2871a6230f594985ef6803f025a2b4bf8315e532	bbsim
040000 tree 2b97fc489c7e3b6d7fad88b61480c4c75e75db7d	bbsimctl
040000 tree 520df3afb33e22579f791e378a33e1d43a4e8a04	common