From: | Andres Freund <andres(at)anarazel(dot)de> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Noah Misch <noah(at)leadboat(dot)com>, pgsql-committers(at)lists(dot)postgresql(dot)org |
Subject: | Re: pgsql: aix: No need to use mkldexport when we want to export all symbol |
Date: | 2022-09-14 02:39:32 |
Message-ID: | 20220914023932.g6woj7bfb6zbrksv@awork3.anarazel.de |
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Lists: | pgsql-committers |
Hi,
On 2022-09-13 11:25:30 -0700, Andres Freund wrote:
> On 2022-09-11 11:19:25 -0700, Andres Freund wrote:
> > We could also try to fall back to using -Wl,b,expall for extension modules.
>
> expall doesn't work, because of our use of identifiers in reserved namespaces,
> e.g. _PG_init:
>
> expall
> Exports all global symbols, except imported symbols, unreferenced symbols defined in archive members, and symbols beginning with an underscore
> (_). You can export additional symbols by listing them in an export file or using the expfull option. This option does not affect symbols
> exported by the autoexp option.
>
> However, there also is 'expfull' - IIRC that causes problems when used for
> postgres, but appears to be fine for .so's.
>
> So we could work around the xlc 12.1 issue with something like the attached
> patch. It passes at some of the tests, with both 32 and 64bit xlc 12.1, will
> have to wait a while to see more
Both passed check-world.
- Andres
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