040000 tree d4033e7f18de7abd8087ea757ca466311105466d	bbr
040000 tree 108ea6c13770395204e91f202611a02d71cf46fa	bbsim
040000 tree d840b309f2d4fcb831fa2b909ad7ac36e31777d9	bbsimctl
040000 tree e038849c257ea7ce6e16c0e65d48f2f0cc30f739	common