040000 tree 3a912e35c1e5c0712d6245aaa7a145c6b1bcfffe	awk
040000 tree 752c61195a52aea544459037ad872058c92c6e85	core
040000 tree 24baf8d7bd4002b0d0c152740c4c7db22214a518	gmsl
040000 tree e22768cdfa86b32d4e0990a5da6558f206b6acf1	tools