Re: [PATCH v2 1/4] s390: only build for new CPUs with clang

2019-05-03 Thread Heiko Carstens
On Mon, Apr 15, 2019 at 10:35:51AM +0200, Arnd Bergmann wrote: > llvm does does not understand -march=z9-109 and older target > specifiers, so disable the respective Kconfig settings and > the logic to make the boot code work on old systems when > building with clang. > > Part of the early boot

[PATCH v2 1/4] s390: only build for new CPUs with clang

2019-04-15 Thread Arnd Bergmann
llvm does does not understand -march=z9-109 and older target specifiers, so disable the respective Kconfig settings and the logic to make the boot code work on old systems when building with clang. Part of the early boot code is normally compiled with -march=z900 for maximum compatibility. This