040000 tree d7a015c8aa8e70480c3130ab75a38bfda5685dcb	bbr
040000 tree 22cb7cb7e3076b9de43b9540621651aeac3acd86	bbsim
040000 tree de32eb9beace093ec627d8275791b78614210fea	bbsimctl
040000 tree 832d48c286d912e3d9bae513d80c2c3a820bccec	common