040000 tree c178ac196daa225bc374889ba8573a238aecb02f	bbr
040000 tree 33b2370acde0c0a1592707a110bf299ede659d55	bbsim
040000 tree f81a74d8ea514fe611b36c7e6430a279d10bdf5f	bbsimctl
040000 tree 07e5c25b06871cdd4fcd894715aa2635709e897f	common