From: | Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> |
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To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Michael Paquier <michael(at)paquier(dot)xyz>, Jacob Champion <pchampion(at)vmware(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>, Daniel Gustafsson <daniel(at)yesql(dot)se>, info(at)cspug(dot)cz |
Subject: | Re: Preventing abort() and exit() calls in libpq |
Date: | 2021-06-30 14:39:29 |
Message-ID: | 202106301439.dji3ms64lxlj@alvherre.pgsql |
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Lists: | pgsql-hackers |
On 2021-Jun-30, Tom Lane wrote:
> Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> writes:
> > Maybe there's something about the linker flags being used.
> > ... ah yeah, if I configure with coverage enabled on my machine, it fails in the same way.
>
> Ah-hah, yeah, I see it too if I enable profiling. I can confirm
> that it's not from the abort() call in path.c, because it's still
> there if I remove that. So this is another case where build
> infrastructure is injecting abort() calls we didn't ask for.
Hah, I didn't think to try that.
> Between this and the icc case, I'm now inclined to give up on
> trying to forbid abort() calls in libpq. I think the value-add
> for that is a lot lower than it is for exit() anyway. abort()
> is something one doesn't toss around lightly.
No objections to that.
> You mentioned __gcov_exit, but I'm not sure if we need an
> exception for that. I see it referenced by the individual .o
> files, but the completed .so has no such reference, so at least
> on RHEL8 it's apparently satisfied during .so linkage. Do you
> see something different?
Well, not really. I saw it but only after I removed -fprofile-arcs from
Makefile.shlib's link line; but per my other email, that doesn't really
work.
Everything seems to work well for me after removing abort from that grep.
--
Álvaro Herrera Valdivia, Chile
https://www.EnterpriseDB.com/
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