Horton

Re: AIX support - alignment issues

Andres Freund <andres@anarazel.de>

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From: Andres Freund <andres@anarazel.de>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Thomas Munro <thomas.munro@gmail.com>, Peter Geoghegan <pg@bowt.ie>, Noah Misch <noah@leadboat.com>, Robert Haas <robertmhaas@gmail.com>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Date: 2022-07-04T00:43:32Z
Lists: pgsql-hackers 
Hi,

On 2022-07-03 20:08:19 -0400, Tom Lane wrote:
> I would have preferred to keep pademelon, with its pre-C99 compiler, going
> until v11 is EOL, but that ain't happening.

I'm not too worried about that - clang with
  -std=c89 -Wc99-extensions -Werror=c99-extensions
as it's running on mylodon for the older branches seems to do a decent
job. And is obviously much faster :)


> I would not stand in the way of dropping HP-UX and IA64 support as of
> v16.

Cool.


> I do still feel that HPPA is of interest, to keep us honest
> about spinlock support

I.e. forgetting to initialize them? Or the weird alignment stuff it has?

I'd started to work a patch to detect missing initialization for both
spinlocks and lwlocks, I think that'd be good to have for more common cases.

Greetings,

Andres Freund

Commits

  1. Doc: Acknowledge historically supported CPUs and OSes.

  2. Further tidy-up for old CPU architectures.

  3. Tidy up claimed supported CPUs and OSes.

  4. Remove HP/Intel Itanium support.

  5. Remove HP-UX port.

  6. Reorder subskiplsn in pg_subscription to avoid alignment issues.

  7. Tighten TAP tests' tracking of postmaster state some more.

  8. Reorder pg_sequence columns to avoid alignment issue