040000 tree d4033e7f18de7abd8087ea757ca466311105466d	bbr
040000 tree 85059991c270126008d9375f2b1ba698a5cb8248	bbsim
040000 tree bd57796fd2762a1617b2390de9870d15a8e0b919	bbsimctl
040000 tree 54a7b7e51e39d446708ee6e2aa5f9ac18bb2b8db	common