On 3/19/21 12:31 PM, Arnd Bergmann wrote:
On Fri, Mar 19, 2021 at 8:36 AM Naresh Kamboju naresh.kamboju@linaro.org wrote:
Linux mainline master build breaks for sparc defconfig. There are multiple errors / warnings with clang-12 and clang-11 and 10.
- sparc (defconfig) with clang-12, clang-11 and clang-10
- sparc (tinyconfig) with clang-12, clang-11 and clang-10
- sparc (allnoconfig) with clang-12, clang-11 and clang-10
make --silent --keep-going --jobs=8 O=/home/tuxbuild/.cache/tuxmake/builds/1/tmp ARCH=sparc CROSS_COMPILE=sparc64-linux-gnu- 'HOSTCC=sccache clang' 'CC=sccache clang'
I don't think anyone has successfully built a sparc kernel with clang, and I don't think it's worth trying either, given how little upstream work the sparc port sees overall.
We'll get there. There are some other SPARC-related clang bugs that need to be squashed first. We have made quite some improvements and it's actually maintained by the community. Of course, we don't have a commercial backer but that shouldn't be necessary for open source to work.
Adrian