On Tue, 29 May 2018 22:39:48 +0900 Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> wrote: > 2018-05-16 23:14 GMT+09:00 Nicholas Piggin <npiggin@xxxxxxxxx>: > > Some 64-bit toolchains uses the wrong ISA variant for compiling 32-bit > > kernels, even with -m32. Debian's powerpc64le is one such case, and > > that is because it is built with --with-cpu=power8. > > > > So when cross compiling a 32-bit kernel with a 64-bit toolchain, set > > -mcpu=powerpc initially, which is the generic 32-bit powerpc machine > > type and scheduling model. CPU and platform code can override this > > with subsequent -mcpu flags if necessary. > > > > This is not done for 32-bit toolchains otherwise it would override > > their defaults, which are presumably set appropriately for the > > environment (moreso than a 64-bit cross compiler). > > > > This fixes a lot of build failures due to incompatible assembly when > > compiling 32-bit kernel with th Debian powerpc64le 64-bit toolchain. > > > > Cc: Segher Boessenkool <segher@xxxxxxxxxxxxxxxxxxx> > > Signed-off-by: Nicholas Piggin <npiggin@xxxxxxxxx> > > --- > > > Can you please remove the noise changes? > > 1/4 adds some blank lines, then 2/4 removes them. Okay sure, I will change that. Thanks, Nick -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
