[kbuild-all] Re: Error: invalid switch -me200

On Fri, Nov 13, 2020 at 04:37:38PM -0800, Fāng-ruì Sòng wrote: > On Fri, Nov 13, 2020 at 4:23 PM Segher Boessenkool > <segher(a)kernel.crashing.org&gt; wrote: > > On Fri, Nov 13, 2020 at 12:14:18PM -0800, Nick Desaulniers wrote: > > > > > > Error: invalid switch -me200 > > > > > > Error: unrecognized option -me200 > > > > > > > > > > 251 cpu-as-$(CONFIG_E200) += -Wa,-me200 > > > > > > > > > > Are those all broken configs, or is Kconfig messed up such that > > > > > randconfig can select these when it should not? > > > > > > > > Hmmm, looks like this flag does not exist in mainline binutils? There is > > > > a thread in 2010 about this that Segher commented on: > > > > > > > > https://lore.kernel.org/linuxppc-dev/9859E645-954D-4D07-8003-FFCD2391AB6E... > > > > > > > > Guess this config should be eliminated? > > > > The help text for this config options says that e200 is used in 55xx, > > and there *is* an -me5500 GAS flag (which probably does this same > > thing, too). But is any of this tested, or useful, or wanted? > > > > Maybe Christophe knows, cc:ed. > > CC Alan Modra, a binutils global maintainer. > > Alan, can the few -Wa,-m* options deleted from arch/powerpc/Makefile ? All the others work fine (and are needed afaics), it is only -me200 that doesn't exist (in mainline binutils).