1_.tinderbox.* 2_.universe-toolchain 3_.amd64.* 4_.arm.* 5_.arm64.* 6_.i386.* 7_.ia64.* 8_.mips.* 9_.pc98.* 10_.powerpc.* 11_.riscv.* 12_.sparc64.* 13_.sun4v.* 14GPATH 15GRTAGS 16GTAGS 17ID 18cscope.out 19?cscope.out 20