040000 tree 6039ee08f2d849aa4fae122d5b4605f87b6d3e05	bbr
040000 tree 4ee9675e7d5d498cc1dae88b4603c1a0926fe651	bbsim
040000 tree f7cb70202a09c305297f39cb33109ccde3ecb1b7	bbsimctl
040000 tree 2a91b31524c4881c11f891571d66515ca5f573f6	common