040000 tree c178ac196daa225bc374889ba8573a238aecb02f	bbr
040000 tree 82a6d43bf273741ff0a5409ed44a93be5fe51aed	bbsim
040000 tree 929ffdc2aa93e802487fcccff86d0200c68a804b	bbsimctl
040000 tree c1472da9fe274238e7ccc14115229ee5777ea7b7	common