040000 tree d4033e7f18de7abd8087ea757ca466311105466d	bbr
040000 tree 625fa8c143b02e1090eb80a471a2e31b394923d7	bbsim
040000 tree d840b309f2d4fcb831fa2b909ad7ac36e31777d9	bbsimctl
040000 tree a6f02464f527ae81382fcc7cd85dac3ed1b2810b	common