040000 tree 0140ef294bee16e2edc3ae7b04003e374473377e	cpu
040000 tree 053f0951784dbeab91cab17e589c009ee0ffd111	os
040000 tree 48b03ec7b47057abffaadbe8612e02284e22e868	os_cpu
040000 tree c7c704aa7bfe9b080f0e907f28b90068650ccfda	share