GNU Tools ARM Embedded\6 2017-q2-update
>arm-none-eabi-gcc -march=list
arm-none-eabi-gcc: error: unrecognized argument in option '-march=list'
arm-none-eabi-gcc: note: valid arguments to
'-march=' are:
armv2 armv2a armv3
armv3m armv4 armv4t
armv5 armv5e armv5t armv5te
armv6 armv6-m armv6j armv6k armv6kz armv6s-m armv6t2 armv6z armv6zk
armv7 armv7-a armv7-m armv7-r armv7e-m armv7ve
armv8-a armv8-a+crc
armv8-m.base armv8-m.main armv8-m.main+dsp
armv8.1-a armv8.1-a+crc iwmmxt iwmmxt2 native
arm-none-eabi-gcc: fatal error: no input files
compilation terminated.