040000 tree f398fd048580d2b55dce90052aa4f8df1dee7e17	builtins
100644 blob 41d84ee63260a5a020aa1067200282cc8936cc6c	lib.mk
040000 tree 57fe7b6c6a2f8fb32d5d228600243f27b0e1e165	libc
040000 tree e612000efc26b0b2054208b1a0e5916382aad27e	libm