040000 tree 3a912e35c1e5c0712d6245aaa7a145c6b1bcfffe	awk
040000 tree d4bfbe868b180db54335d296fc4b51c29bab5b8f	core
040000 tree 24baf8d7bd4002b0d0c152740c4c7db22214a518	gmsl
040000 tree 4d4b4fcbd1fccf7789c2ff0b2ed6a16a953d57f9	tools