040000 tree f1b713224119246e929956f21d2ec228c8e95110	bbr
040000 tree db9b3068027b3a37bb49883739095517aa6d8711	bbsim
040000 tree 77507e016331a0f632262be794ccbcc5ea931110	bbsimctl
040000 tree ae340b24c56a65e2aea2f272c45591026411867e	common