On 2026-03-10 at 20:00:22 +0100, Peter Zijlstra wrote: >On Tue, Mar 10, 2026 at 05:51:19PM +0000, Maciej Wieczor-Retman wrote: > >> ======= Compilation >> Clang was used to compile the series (make LLVM=1) since gcc doesn't >> seem to have support for KASAN tag-based compiler instrumentation on >> x86. Patchset does seem to compile with gcc without an issue but doesn't >> boot afterwards. > >Can you put all that under a specific CONFIG and make that depend on >CC_IS_CLANG?
I made HAVE_ARCH_KASAN_SW_TAGS depend on CC_IS_CLANG, and that controls all the software tags stuff, like ARCH_DISABLE_KASAN_INLINE through KASAN_SW_TAGS. And ARCH_NEEDS_DEFER_KASAN is for if KASAN is compiled but LAM is not available, so that it gets disabled in runtime. But sure, I suppose I can add a separate CONFIG with CC_IS_CLANG to these three so the clang connection is more transparent. -- Kind regards Maciej Wieczór-Retman
