040000 tree e1cc9f8b75fb0631da1444f3ebbbecd178dd1530	bbr
040000 tree c34079f80d3bf770f4cf6d203e50b98bf47b209c	bbsim
040000 tree 4298022bcc36ceff77bca8100597db1382a36384	bbsimctl
040000 tree abd7ae7d1894cdbfaf5de6756a3a2b149b9fa9b8	common