040000 tree d4033e7f18de7abd8087ea757ca466311105466d	bbr
040000 tree 22c78753eeca7136ad582dd8e36e95781550c1fd	bbsim
040000 tree d840b309f2d4fcb831fa2b909ad7ac36e31777d9	bbsimctl
040000 tree 9fd5c8d485369c06e79d4ffa13eea2ed78791654	common