On Tue, May 5, 2020 at 7:14 AM Thomas Gleixner <[email protected]> wrote: > > Currently entry_64_compat is exempt from objtool, but with vmlinux > mode there is no hiding it. > > Make the following changes to make it pass: > > - change entry_SYSENTER_compat to STT_NOTYPE; it's not a function > and doesn't have function type stack setup. > > - mark all STT_NOTYPE symbols with UNWIND_HINT_EMPTY; so we do > validate them and don't treat them as unreachable. > > - don't abuse RSP as a temp register, this confuses objtool > mightily as it (rightfully) thinks we're doing unspeakable > things to the stack. >
Acked-by: Andy Lutomirski <[email protected]> > Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Did a From line get eaten?
