040000 tree 830579f9bf6cbe6cd71f6b75ff293315d79c391c	bbr
040000 tree 15019b125202069c1d1e50c9b396409bf4417b56	bbsim
040000 tree eafff1e28dc4d0bc735316bbc863415def7c5b94	bbsimctl
040000 tree 0a0747c97c785de9dcdc81d61a47d683b0cf5399	common