On Thu, Jan 7, 2021 at 7:15 PM Nathan Chancellor <[email protected]> wrote: > On Thu, Jan 07, 2021 at 09:22:00AM -0800, Kees Cook wrote:
> > I think this is: > > https://github.com/ClangBuiltLinux/linux/issues/256 > > and that bug needs re-opening? Or maybe there's a new bug I can't find? > > The problem is that applying the fix for that issue does not work, nor > does converting p4d_index to a macro like mips and s390. I am not sure > what exactly is going on there, it appears that clang cannot reason > about ptrs_per_p4d because it is an extern variable with no assigned > value in its translation unit? Right, I tried the __always_inline trick already and concluded the same. Arnd
