040000 tree 3c973924ebbad22f7150b1b1e02b80af3676b3b6	bbr
040000 tree 6100967afa237bf2ce819baec159678073e1922a	bbsim
040000 tree 3fc2c527780f940eafac1458566a3dde0a16f4b8	bbsimctl
040000 tree 44cd31c8c054410b9601236b449824535b709c9b	common