1subdir('alpha') 2subdir('arm') 3subdir('avr') 4subdir('hexagon') 5subdir('hppa') 6subdir('i386') 7subdir('loongarch') 8subdir('m68k') 9subdir('microblaze') 10subdir('mips') 11subdir('openrisc') 12subdir('ppc') 13subdir('riscv') 14subdir('rx') 15subdir('s390x') 16subdir('sh4') 17subdir('sparc') 18subdir('tricore') 19subdir('xtensa') 20