Hi,
Ok & thanks, I will reroll this :)Jojo 在 2020年8月26日 +0800 AM4:22，Jeff Law <l...@redhat.com>，写道： > On Fri, 2020-08-21 at 14:18 +0800, Jojo R wrote: > > gcc/ChangeLog: > > > > * config/csky/csky.opt (TARGET_BACKTRACE): New. > > * doc/invoke.texi (C-SKY Options): Document -mbacktrace. > ISTM you need an actual implementation. All this does is add an option. It's > impossible to know if this is a good idea without seeing implementation bits. > > jeff
