[PATCH v3] sigaction.2: Document SA_EXPOSE_TAGBITS and the flag support detection protocol

[Peter Collingbourne]

On Wed, Jul 14, 2021 at 1:37 PM Alejandro Colomar (man-pages)
<alx.manpages at gmail.com> wrote:
>
> Hi Peter,
>
> On 7/13/21 3:38 AM, Peter Collingbourne wrote:
> > Signed-off-by: Peter Collingbourne <pcc at google.com>
> > ---
> > This feature landed back in 5.11, but the manpage
> > update seems to have fallen through the cracks.
>
> Sorry, I don't remember what happened :/
> Thanks for the ping.
>
> > Here's a v3 with the introducing version specified
> > and with one formatting nit fixed.
>
> Please See some comments below (especially in the example code).

Addressed all comments in v4.

> BTW, could you please link to the thread in the kernel mailing list that
> added this feature?

There were several threads (the patch went through several revisions).
But you can find your way to most of the threads starting from here:
https://lore.kernel.org/linux-arm-kernel/?q=pcc+far_el1

Peter