040000 tree 385385a0ced41ff0441202c28109bfd970343224	bbr
040000 tree dab265293b3deaa7932eccb1cfad260955fd2945	bbsim
040000 tree dae819eaed5d941a44b0c16783a0c79cfe8bdfd9	bbsimctl
040000 tree 84d090e47e1f4fa5ddb0c85bb41f73322e840bcd	common