[PATCH v3] s390: Do not use canonical PLT if pointer equality is not needed

[Jens Remus]

Hello Alan,

thanks a lot for your detailed explanation!  This is much appreciated!

On 3/19/2026 6:42 AM, Alan Modra wrote:
> On Tue, Mar 17, 2026 at 05:29:52PM +0100, Jens Remus wrote:
>> +# PR 29655 (cont.): Check that in PIC code linked as PDE taking the address
>> +# of a function defined in a DSO results in the function address (from GOT)
>> +# and not the "canonical PLT" address from the PDE.
>> +# This is just an optimization and both is valid, although libraries may
>> +# depend on this specific behavior, so do not complain loudly.
>> +setup_xfail *-*-*
>> +clear_xfail aarch64-*-* alpha-*-* arm*-*-* hppa-*-* i?86-*-* ia64-*-* \
>> +    microblaze-*-* mips-*-* mips64-*-* powerpc*-*-* s390x-*-* x86_64-*-*
> 
> I think you should delete the preceding five lines, leaving it up to
> target maintainers to add setup_xfail for their targets.  No need to
> repost with just that changed.  The comment here is a little
> misleading.  This isn't just an optimisation, but rather about
> generating a correct program.

Ok.  Thank you for the approval (for adding the common test)!

Regards,
Jens
-- 
Jens Remus
Linux on Z Development (D3303)
jremus@de.ibm.com / jremus@linux.ibm.com

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