040000 tree fc08d3c856671157c79ff66d05e19b48795292ff	bbr
040000 tree fed0418c14bc93889a02eefe09b4df42ebff353e	bbsim
040000 tree f81a74d8ea514fe611b36c7e6430a279d10bdf5f	bbsimctl
040000 tree 27b363c616e8cb2d47af2cfbf7bbb5de16cbf71d	common