Andy Lutomirski <[email protected]> writes:
> 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?
Yes. A couple of patches which were just handed back and forth between
me and Peter lost them. Fixed them all up localy already.
Thanks,
tglx
