> 2023年5月30日 13:16，Maciej W. Rozycki <macro@xxxxxxxxxxx> 写道： > > On Tue, 30 May 2023, Jiaxun Yang wrote: > >>> Sure, but this change is not needed for it. You just need to declare >>> which ISA revisions your platform supports and leave `__get_cpu_type' >>> alone. It has worked like that for a decade now. >> >> I’m afraid it won’t work as you expected. >> >> Actually I ran into a problem that `case CPU_P5600` in c-r4k.c is optimised out >> by compiler, because the codepath is marked as unreachable. > > Maybe there's a bug elsewhere then. Send me your .config and I'll try to > reproduce it. Ok I see the problem, after applying patch 2 the issue is gone. So actually only patch 2 is necessary. The unreachable mark here leads gcc to generate some confusing code and I misread it. Sorry for the noise. Thanks - Jiaxun > > Maciej
