Re: [PATCH v2 0/6] s390: Add kCFI support
Heiko Carstens <[email protected]>
| Newsgroups | org.kernel.vger.bpf,dev.linux.lists.llvm,org.kernel.vger.linux-kernel,org.kernel.vger.linux-s390 |
|---|---|
| Message-ID | <[email protected]> |
On Thu, Jul 30, 2026 at 04:13:17PM -0700, Nathan Chancellor wrote: > On Mon, Jul 27, 2026 at 04:05:07PM +0200, Heiko Carstens wrote: > > Add s390 kCFI support using the generic support provided by clang. > > Yes, getting coverage over s390 specific code and drivers is worthwhile, > even if there is no architecture specific expansion available yet, since > most problems should be visible with either implementation. Getting that > sooner rather than later would be nice to avoid the panic when a CFI > check fails and make debugging easier but we will take what we can get. > > I tested clang-18 and clang-23 with defconfig + CFI, which both properly > fails the CFI_FORWARD_PROTO LKDTM test. I built allmodconfig (which now > includes CFI=y) with both compilers, which showed no issues. > > Tested-by: Nathan Chancellor <[email protected]> Thanks a lot!