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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Thomas Munro <thomas.munro@gmail.com>
Cc: Bruce Momjian <bruce@momjian.us>
Cc: Christophe Pettus <xof@thebuild.com>
Cc: Andrew Dunstan <andrew@dunslane.net>
Cc: Wolfgang Walther <walther@technowledgy.de>
Cc: PostgreSQL Bugs <pgsql-bugs@lists.postgresql.org>
Subject: Re: Regression tests fail with musl libc because libpq.so can't be loaded
Date: Tue, 19 Mar 2024 21:53:08 -0400
Message-ID: <4093813.1710899588@sss.pgh.pa.us> (raw)
In-Reply-To: <CA+hUKG+Y1D2Bv9v0GbYrhiQ+mhf=6Xj2_viiATnBVFShkfO4VQ@mail.gmail.com>
References: <855a1b16-0dc0-42b2-8f90-79eb49cf2893@technowledgy.de>
	<F5A214FF-1BED-4935-B4FF-4679CCF463D6@thebuild.com>
	<CAD5tBcLWM+QT0+VKWUHiBX2Ey5eCc8jVL5APb1U5iaePV_eAvg@mail.gmail.com>
	<A9F65857-A286-4EB8-96CE-EA5C1636A05C@thebuild.com>
	<CA+hUKG+H80zJTmNnRbAQb+py2xpzNUtmoacbfnyAi2c5d1imGg@mail.gmail.com>
	<E5D4E3AE-C926-48C5-84DC-57E3E9357675@thebuild.com>
	<CA+hUKGJW_ht0VYsr7bzF8-FLZW_o3Ys6Xm5w10GU5WBHtfv+zg@mail.gmail.com>
	<3561573.1710771812@sss.pgh.pa.us>
	<CA+hUKG+Tq3GK7bPd03N0Eox3YY4-Hjd7qQjo_QZFjdbhTqQGQA@mail.gmail.com>
	<CA+hUKGK9LUq=uygBRFt3vFO1RL+_scsT4+hMkvea_zTttHZ59Q@mail.gmail.com>
	<ZfolyUQw9z1zxX58@momjian.us>
	<CA+hUKG+Y1D2Bv9v0GbYrhiQ+mhf=6Xj2_viiATnBVFShkfO4VQ@mail.gmail.com>

Thomas Munro <thomas.munro@gmail.com> writes:
> Yep.  How long is /proc/XXX/cmdline (check with wc -c /proc/...) in a
> postmaster near you?  You'd always get that much, plus as much of
> /proc/XXX/environ as we can find before you reach LD_XXX=, which on a
> typical system would, I guess, usually be never.

I'd be happier about this if the target pattern were more restrictive.
Is there reason to think that musl keeps a pointer to anything besides
LD_LIBRARY_PATH?

			regards, tom lane





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  Cc: tgl@sss.pgh.pa.us, thomas.munro@gmail.com, bruce@momjian.us, xof@thebuild.com, andrew@dunslane.net, walther@technowledgy.de, pgsql-bugs@lists.postgresql.org
  Subject: Re: Regression tests fail with musl libc because libpq.so can't be loaded
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