Horton

Re: AIX support

Andres Freund <andres@anarazel.de>

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From: Andres Freund <andres@anarazel.de>
To: AIX PG user <postgres-ibm-aix@wwpdl.vnet.ibm.com>
Cc: pgsql-hackers@lists.postgresql.org
Date: 2025-09-23T14:36:47Z
Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Restore AIX support.

  2. pg_createsubscriber: Improve error messages.

  3. Use <stdint.h> and <inttypes.h> for c.h integers.

  4. Stabilize jsonb_path_query test case.

  5. Fix C23 compiler warning

  6. pg_stat_statements: Add tests for nested queries with level tracking

  7. Add missing newline at the end of index_including.sql

  8. Remove AIX support

  9. Fix s_lock.h PPC assembly code to be compatible with native AIX assembler.

  10. Use a non-locking initial test in TAS_SPIN on PPC.

  11. Use LWSYNC in place of SYNC/ISYNC in PPC spinlocks, where possible.

  12. Use mutex hint bit in PPC LWARX instructions, where possible.

  13. Adjust TAS assembly as per recent discussions: use "+m"(*lock) everywhere

  14. Apple's assembler likes the inlined TAS syntax too, so no reason to

  15. Tighten up register usage for inline PPC version of tas().

  16. Put the isync where it's supposed to be.

  17. > > I'll re-check that with the ppc architecture guy here.

  18. Fix PPC s_lock operations to work correctly on multi-CPU machines.

  19. I tried to build PostgreSQL with the following step to see backends hung

  20. Complete merge of all old man page information.

  21. s_lock aix patch.

Hi,

On 2025-09-23 14:26:08 +0000, AIX PG user wrote:
> Thank you for your feedback and for highlighting the importance of Meson-based builds.
> 
> We fully recognize the long-term objective of transitioning away from
> make-based builds, and we are actively working on reviving Meson support for
> AIX in alignment with that direction. However, we are currently encountering a
> few errors with the revived changes, and we are working actively to
> resolve them. I will keep you updated and share the finalized Meson-related
> changes at the earliest opportunity.

It worked without meson changes just before the AIX support was dropped. I do
not see why you *need* that meson patch, rather it just being convenient -
after all I had made it work before, without that.


> In the meantime, we would sincerely appreciate it if you/team could review the patch
> with respect to the gmake build and the associated source-level modifications
> submitted on commitfest.

I'd personally just not add gmake support at all, but ...

>     https://commitfest.postgresql.org/patch/6050/
> 
> Your input would be invaluable in helping us ensure the correctness and
> completeness of the implementation before we proceed further.  Thank you once
> again for your continued guidance and support.

One suggestion I do have is to split the patch into a few constitutent pieces.

Greetings,

Andres Freund