From debbugs-submit-bounces@debbugs.gnu.org Mon Dec 14 05:27:26 2020 Received: (at 41669) by debbugs.gnu.org; 14 Dec 2020 10:27:26 +0000 Received: from localhost ([127.0.0.1]:51282 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kol4g-0007OU-GV for submit@debbugs.gnu.org; Mon, 14 Dec 2020 05:27:26 -0500 Received: from flashner.co.il ([178.62.234.194]:52198) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kol4c-0007O4-RC for 41669@debbugs.gnu.org; Mon, 14 Dec 2020 05:27:23 -0500 Received: from localhost (unknown [5.102.238.249]) by flashner.co.il (Postfix) with ESMTPSA id 02B00400E4; Mon, 14 Dec 2020 10:27:16 +0000 (UTC) Date: Mon, 14 Dec 2020 12:27:14 +0200 From: Efraim Flashner To: Leo Le Bouter Subject: Re: bug#41669: Cross-compiled powerpc64-linux bootstrap-tarballs not reproducible Message-ID: References: <87wo0hqbb3.fsf@gmail.com> <874krtnvk8.fsf@gmail.com> <87y2p4mqe2.fsf@gmail.com> <87a6xu2xrj.fsf@gmail.com> <20200913062858.GC1100@E5400> <87wo0hqbb3.fsf@gmail.com> <87pn5wzwcf.fsf@gnu.org> <87pn3dth0l.fsf_-_@gmail.com> <874kkoyebq.fsf@gnu.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="uyqQH6igkwY9scqR" Content-Disposition: inline In-Reply-To: X-PGP-Key-ID: 0x41AAE7DCCA3D8351 X-PGP-Key: https://flashner.co.il/~efraim/efraim_flashner.asc X-PGP-Fingerprint: A28B F40C 3E55 1372 662D 14F7 41AA E7DC CA3D 8351 X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 41669 Cc: 41669@debbugs.gnu.org, Ludovic =?utf-8?Q?Court=C3=A8s?= , Chris Marusich , Maxim Cournoyer , Vincent Legoll X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) --uyqQH6igkwY9scqR Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Dec 14, 2020 at 10:22:43AM +0100, Leo Le Bouter wrote: > Hello Chris, Ludo and Efraim, >=20 > In my experience, the bootstrap binaries are reproducible on > powerpc64le-linux-gnu for a specific GNU Guix System and GNU Guix > version and configuration. It's not perfect that the kernel version has > to be pinned for reproducibility but it's better than nothing. >=20 > The issue with powerpc64le-linux-gnu on GNU Guix core-updates now is > that it has been upgraded to Glibc 2.32 and there is other issues due > to that. Glibc 2.31 is otherwise working well. I wish we could push > changes to build bootstrap binaries to master where there is Glibc 2.31 > (and ensure the changes don't affect other architectures) and get this > over with.=20 It is possible to create a "perfect setup" by editing the package definitions in gnu/packages/bootstrap to fix certain issues which are needed to make bootstrap binaries actually work. I suppose it would be possible to downgrade glibc in bootstrap.scm, but I wouldn't count on maintaining a separate glibc for powerpc64le vs the rest of the architectures. Do you have a preference big-endian vs little endian? --=20 Efraim Flashner =D7=90=D7=A4=D7=A8=D7=99=D7=9D = =D7=A4=D7=9C=D7=A9=D7=A0=D7=A8 GPG key =3D A28B F40C 3E55 1372 662D 14F7 41AA E7DC CA3D 8351 Confidentiality cannot be guaranteed on emails sent or received unencrypted --uyqQH6igkwY9scqR Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEoov0DD5VE3JmLRT3Qarn3Mo9g1EFAl/XPf8ACgkQQarn3Mo9 g1EqZA//al6eVmCrax75nQPknTyF9/acmLq9HZ2j0WNBc20SbZbElQ40eCK1I2BV qRfnFlwm5hftKXbQho55qndPDfU9eSvba5+/Pw+SM3jjs5pxhx/mHEZ+OAHfwsFi GQfNfXZFsRzjGyKN9TgtwcI4jtZ6y9GK7vJ8hR0jn/LXaMT8WbzsX7HfOyn7OhA5 D4fxLF2I9jcsbHbuP7Ky5S2VsulOTHTLUIVHJGdtZ5/d8zRZesFWPVS2On0yACZB GFIuOovDW9ZWR6ziy+7EZl0CP4+2ALplk2UD9nUTxet1KdiIBnVTkOAly0U2mvTq bOiuKT/Ve/igMsW7KgXaEXYurR3qbU0TROdPcM87QL9Pfk5+9+wN9Huz+JvMFh0I 8yVU19RY4bCV0EcYInzlng5/pN8xKwGfD5ytHaJ9FrUf10Prs0WU1jFBkPmC2Mve ZenMKpSr4r6KrLt9B6y57qzEu43lAmKMi9/RRYFLdXpD7J9GRrjX1taLHF2Ll+fn jz5u0p6WltgnoxPa7s+OvhPI3dzyiOsGsCNk5M/yZXV2WQtoGxXSr4Fk/wcAJlD/ BpRfFvalubwNcTjaCM9BfUAtF0OFtQ25r3wIOO/CpRZ183JSTN+e1THo5wOan9DC PFspJ9YMDOoxFkEpwdJoqHiyc1fzHXmEbyjJXOaVBcbu0ThGNFM= =feIi -----END PGP SIGNATURE----- --uyqQH6igkwY9scqR--