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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Thomas Munro <thomas.munro@gmail.com>
Cc: Heikki Linnakangas <hlinnaka@iki.fi>
Cc: Bastien Roucariès <rouca@debian.org>
Cc: pgsql-bugs@lists.postgresql.org
Subject: Re: Detection of hadware feature => please do not use signal
Date: Sat, 23 Nov 2024 19:08:55 -0500
Message-ID: <885805.1732406935@sss.pgh.pa.us> (raw)
In-Reply-To: <CA+hUKGLOh5kr4fvGFnpOq+_QuXErsYRL4kcSpBYqKdQLa3keBw@mail.gmail.com>
References: <4496616.iHFcN1HehY@portable-bastien>
	<af84e934-4e9c-4380-95ee-8921dab1254b@iki.fi>
	<1156374.1730396928@sss.pgh.pa.us>
	<7ec1c65c-1a28-49a7-af43-f77c260a3df6@iki.fi>
	<1292593.1730399134@sss.pgh.pa.us>
	<CA+hUKGLRXq0-s0n2=dy_A5iY-Omg628osyJEJMjPQ=6m566UgA@mail.gmail.com>
	<707008.1732325995@sss.pgh.pa.us>
	<CA+hUKGJPrRow2aiUSK=aep5nyXUaB0gBoDJQKfyCsP=-ivfapg@mail.gmail.com>
	<736756.1732341046@sss.pgh.pa.us>
	<865773.1732399354@sss.pgh.pa.us>
	<CA+hUKGLOh5kr4fvGFnpOq+_QuXErsYRL4kcSpBYqKdQLa3keBw@mail.gmail.com>

Thomas Munro <thomas.munro@gmail.com> writes:
> On Sun, Nov 24, 2024 at 11:02 AM Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> cc1: error: '-mfloat-abi=hard': selected processor lacks an FPU

> Interesting.  Happens also on Linux starting with GCC 11, apparently.
> Here's one with some clues:
> https://github.com/checkpoint-restore/criu/issues/1653#issuecomment-986034428

Oh, very interesting!  Maybe we need to try -march=armv8-a+crc+fp
(or some spelling like that) if -march=armv8-a+crc doesn't work?

			regards, tom lane





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