Re: AIX support

Peter Eisentraut <peter@eisentraut.org>

From: Peter Eisentraut <peter@eisentraut.org>
To: Heikki Linnakangas <hlinnaka@iki.fi>, Srirama Kucherlapati <sriram.rk@in.ibm.com>, "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>, "postgres-ibm-aix@wwpdl.vnet.ibm.com" <postgres-ibm-aix@wwpdl.vnet.ibm.com>
Cc: Bruce Momjian <bruce@momjian.us>, Robert Haas <robertmhaas@gmail.com>, Alvaro Herrera <alvherre@alvh.no-ip.org>, Laurenz Albe <laurenz.albe@cybertec.at>, Noah Misch <noah@leadboat.com>, Michael Paquier <michael@paquier.xyz>, Andres Freund <andres@anarazel.de>, Thomas Munro <thomas.munro@gmail.com>, "tvk1271@gmail.com" <tvk1271@gmail.com>, Tom Lane <tgl@sss.pgh.pa.us>
Date: 2024-12-30T09:29:53Z
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.

On 25.12.24 11:22, Heikki Linnakangas wrote:
> Thanks for the links. It's disappointing there isn't a standard way to 
> do this. It's nice to see the comments in cpython's makeexp_aix script 
> explaining the "hidden tricks". I'd love to see similar comments in 
> mkldexport.sh explaining what it does. And also why the script is needed 
> on AIX in the first place.
> 
> I wonder if meson's AIX support would have something built-in to do this?

Meson appears to have AIX support, so it's worth trying out.  If it's 
working, then it would also be worth considering a meson-only AIX port, 
which might be much simpler.  Conversely, if it doesn't work at all, it 
would need to be fixed.  I don't think we'd want to accept a new port 
that doesn't work with meson.