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040000 tree 0576e144f05716dfd5f3b850f256c5d58b687c2a	compile_tools
040000 tree a03278e38ebf374acbbc753a17d2449a20e920d1	do_package_tool
040000 tree f1ee91fa08e9db501ed46a8d7172317a6ad874dc	rootfs