040000 tree 3a912e35c1e5c0712d6245aaa7a145c6b1bcfffe	awk
040000 tree 80e694900af109f3d7f69fa9853f5c6fd4ea1a7a	core
040000 tree 24baf8d7bd4002b0d0c152740c4c7db22214a518	gmsl
040000 tree f1cad3b423e034b664e43522ddfcb3cbdb5c276f	tools