[v2,0/6] prctl.2 man page updates for Linux 5.6

Message

Dave Martin May 27, 2020, 9:17 p.m. UTC

A bunch of updates to the prctl(2) man page to fill in missing
prctls (mostly) up to Linux 5.6 (along with a few other tweaks and
fixes).

Patches from the v1 series [1] that have been applied or rejected
already have been dropped.

People not Cc'd on the whole series can find the whole series at
https://lore.kernel.org/linux-man/ .

Patches:

 * Patch 1 is a new (but trivial) formatting fix, unrelated to the new
   prctls.

 * Patches 2-3 relate to the speculation control prctls.  These are
   unmodified from v1, but need review.

 * Patches 4-5 relate to the arm64 prctls from v1, with reviewer
   feedback incorporated.  (See notes in the patches.)

 * Patch 6 is *draft* wording for the arm64 address tagging prctls.
   The semantics of address tagging is particularly slippery, so
   this needs discussion before merging.


[1] https://lore.kernel.org/linux-man/[e-mail]/T/#t


Dave Martin (6):
  prctl.2: ffix use literal hyphens when referencing kernel docs
  prctl.2: Add PR_SPEC_INDIRECT_BRANCH for SPECULATION_CTRL prctls
  prctl.2: Add PR_SPEC_DISABLE_NOEXEC for SPECULATION_CTRL prctls
  prctl.2: Add SVE prctls (arm64)
  prctl.2: Add PR_PAC_RESET_KEYS (arm64)
  prctl.2: Add tagged address ABI control prctls (arm64)

 man2/prctl.2 | 444 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 435 insertions(+), 9 deletions(-)

Comments

Michael Kerrisk (man-pages) May 28, 2020, 7:11 a.m. UTC | #1

Hi Dave

On Wed, 27 May 2020 at 23:17, Dave Martin <[e-mail]> wrote:
>
> A bunch of updates to the prctl(2) man page to fill in missing
> prctls (mostly) up to Linux 5.6 (along with a few other tweaks and
> fixes).
>
> Patches from the v1 series [1] that have been applied or rejected
> already have been dropped.
>
> People not Cc'd on the whole series can find the whole series at
> https://lore.kernel.org/linux-man/ .
>
> Patches:
>
>  * Patch 1 is a new (but trivial) formatting fix, unrelated to the new
>    prctls.

Applied.

>  * Patches 2-3 relate to the speculation control prctls.  These are
>    unmodified from v1, but need review.

Applied, and pushed (since there were no review comments from last version).

>  * Patches 4-5 relate to the arm64 prctls from v1, with reviewer
>    feedback incorporated.  (See notes in the patches.)

I'll hold off on these patches, to see if review comments come in.

>  * Patch 6 is *draft* wording for the arm64 address tagging prctls.
>    The semantics of address tagging is particularly slippery, so
>    this needs discussion before merging.

Okay -- I'll hold off with that patch too.

Cheers,

Michael

> [1] https://lore.kernel.org/linux-man/[e-mail]/T/#t
>
>
> Dave Martin (6):
>   prctl.2: ffix use literal hyphens when referencing kernel docs
>   prctl.2: Add PR_SPEC_INDIRECT_BRANCH for SPECULATION_CTRL prctls
>   prctl.2: Add PR_SPEC_DISABLE_NOEXEC for SPECULATION_CTRL prctls
>   prctl.2: Add SVE prctls (arm64)
>   prctl.2: Add PR_PAC_RESET_KEYS (arm64)
>   prctl.2: Add tagged address ABI control prctls (arm64)
>
>  man2/prctl.2 | 444 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
>  1 file changed, 435 insertions(+), 9 deletions(-)
>
> --
> 2.1.4
>


--
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/