On Wed, Oct 23, 2024 at 12:38:59PM +0900, Masahiro Yamada wrote: > On Wed, Oct 23, 2024 at 9:44 AM Koakuma <koachan@xxxxxxxxxxxxxx> wrote: > > I'm not sure if I should update the documentation now given that LLVM support > > is nowhere near as complete as other architectures, but I'll do it if needed... > > Nathan said he was able to build the kernel. > > If so, I think this should be documented (required LLVM version and > the supported build command), > otherwise people cannot test this patch. I am not sure that there is a super concise way to describe for Documentation/kbuild/llvm.rst that sparc currently requires 'CC=clang LLVM_IAS=0' along with a build of clang from the main branch of llvm-project to work properly. I worry that adding any sort of mention of sparc in there will have people flooding to try older versions of clang like you did or LLVM=1 when there are obviously known issues that the upstream LLVM folks have not had a chance to tackle (but maybe it will be good to get issues on file for those). If it would be useful, I could send a separate email documenting exactly what was tested and how it was tested as a reference in the face of future changes, until better support for the LLVM tools is enacted. Cheers, Nathan
