040000 tree 9133f8f41a39a273e0ee9cb909f7100cb9287c8a	bbr
040000 tree 142d463f48685cabebdb8bb6ac7428b9ff1a8e78	bbsim
040000 tree b51216cf82237326cc36391594ba931edc5b2dc6	bbsimctl
040000 tree 64d7a15f003031121fdd919f979b4d6a4eb21598	common