[21.10 FEAT] Valgrind support for new s390 hardware

[bugproxy]

Add support of new s390 hardware instructions to Valgrind. This is required when running applications built for z15 under Valgrind for debugging purposes.

The enablement of Valgrind with new instructions is crucial since the distro build environments use Valgrind for build validation of e.g. Glibc. Valgrind new s390 hardware support is a hard requirement for all distro builds with an ALS to this new s390 hardware

[Frank Heimes (fheimes)]

I'll mark this as a duplicate of LP 1825343,
however, will make a note to consider this for the upcoming release notes.

[bugproxy (bugproxy)]

------- Comment From <email address hidden> 2019-11-27 02:41 EDT-------
Moved to 20.10, will not make it into 20.04

[bugproxy (bugproxy)]

------- Comment From <email address hidden> 2020-08-19 08:27 EDT-------
Feature moved to 21.04. Will not make it time for 20.10. Inclusion targeted for valgrind 3.17.

[bugproxy (bugproxy)]

------- Comment From <email address hidden> 2021-01-26 02:58 EDT-------
Feature will not make it for 21.04, moved to 21.10

[Frank Heimes (fheimes)]

This is no longer a duplicate
things are now decoupled
and this portion now slipped to 21.10

[Launchpad Janitor (janitor)]

[Expired for valgrind (Ubuntu) because there has been no activity for 60 days.]

[Frank Heimes (fheimes)]

@IBM Any indication about an upstream version the improved s390x support will end up?

[bugproxy (bugproxy)]

------- Comment From <email address hidden> 2021-05-20 11:55 EDT-------
> @IBM Any indication about an upstream version the improved s390x support
> will end up?
The progress is tracked upstream here: https://bugs.kde.org/show_bug.cgi?id=432387

[bugproxy (bugproxy)]

------- Comment From <email address hidden> 2021-05-28 12:04 EDT-------
> The progress is tracked upstream here:
> https://bugs.kde.org/show_bug.cgi?id=432387
I've finished up a patch and attached it to that Bug. Upstream approval is still pending.

[Simon Chopin (schopin)]

Here's a debdiff incorporating the above patchset into our version of Valgrind

[Simon Chopin (schopin)]

My apologies, it turns out I didn't actually test-build on s390x. After doing so, the build fails. I have a potential fix, waiting on the build to finish.

[Simon Chopin (schopin)]

Fixed version (some helper functions and macros were missing)

[Launchpad Janitor (janitor)]

This bug was fixed in the package valgrind - 1:3.17.0-0ubuntu2

---------------
valgrind (1:3.17.0-0ubuntu2) impish; urgency=medium

  * d/p/lp-1853271/Bug-432387-z15-support*.patch
    adding support for IBM z15 instructions to Valgrind (LP: #1853271)
  * d/p/0001-s390x-Add-convenience-function-mkV128.patch added in support
    of the z15 patchset.

 -- Simon Chopin <email address hidden> Wed, 28 Jul 2021 12:23:48 +0200

[bugproxy (bugproxy)]

------- Comment From <email address hidden> 2021-08-25 07:24 EDT-------
Fix available in Impish / U21.10, hence closing.
IBM BZ status: ->CLOSED