From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Wed, 21 Jul 2021 19:35:51 +0200 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1m6G8N-0005l1-Hx for lore@lore.pengutronix.de; Wed, 21 Jul 2021 19:35:51 +0200 Received: from localhost ([127.0.0.1] helo=metis.ext.pengutronix.de) by metis.ext.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1m6G8N-0001PR-32; Wed, 21 Jul 2021 19:35:51 +0200 Received: from mout.kundenserver.de ([212.227.17.10]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1m6G7k-0001Ol-Up for ptxdist@pengutronix.de; Wed, 21 Jul 2021 19:35:17 +0200 Received: from methusalix.internal.home.lespocky.de ([92.117.59.90]) by mrelayeu.kundenserver.de (mreue107 [212.227.15.183]) with ESMTPSA (Nemesis) id 1MlO5j-1lNbZy3wK5-00lpiy for ; Wed, 21 Jul 2021 19:35:12 +0200 Received: from falbala.internal.home.lespocky.de ([192.168.243.94]) by methusalix.internal.home.lespocky.de with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1m6G7d-0002Ke-4U for ptxdist@pengutronix.de; Wed, 21 Jul 2021 19:35:10 +0200 Date: Wed, 21 Jul 2021 19:35:04 +0200 From: Alexander Dahl To: ptxdist@pengutronix.de Message-ID: <20210721173503.674owtnqc5p4o4iy@falbala.internal.home.lespocky.de> Mail-Followup-To: ptxdist@pengutronix.de References: <20210721133608.dy2urgqntrxzqseb@falbala.internal.home.lespocky.de> <693eb2be-a75a-2f9e-5ede-cdd86add851d@ppc-ag.de> MIME-Version: 1.0 In-Reply-To: <693eb2be-a75a-2f9e-5ede-cdd86add851d@ppc-ag.de> User-Agent: NeoMutt/20170113 (1.7.2) X-Scan-Signature: b813ab0ffcb179d9058cb7724995f604 X-Provags-ID: V03:K1:UMnZU+Glm0RCc5Luq0Emg5BjHwKntahN991OhiaP0Le03hvh0p7 XIfH0ghvSCzvH112RwVRASbhgJRwfwNiHWRxbi+UMyQB8idLKyecc9COdE67diTIwHrkOAt 8NqviHc/oVw3FtCbQewDlvoPze3oLP7GEJ0LsN2VScBgSD+OBFaLGnFfYDWPxsVs/kHluAA k13Sp2EcFjF8efEl+leLw== X-UI-Out-Filterresults: notjunk:1;V03:K0:W5StxIIYTyQ=:/Bhz2s7qfx8auo2Tlbr7Lk yDUZgHKPqlB7OUi+dZH/pLDYeuyA46EyfvM7cVa4PJOHqAJd0GtbwmHCM1hXmWbDRhIzZcEtp cR1BJekkvWrMjFkDNrrl3phzTVNtLUfouB14c3Ze3vTyQCnn4hLgxVw5Le+rC9EbY78u2HtoE +qtDKhkoIVg9z13AmJajYZreXxTj+01zqOqeyrMywhJDiZ/+3mBwWrWZCW16jQ1a349h0UbXp 8Mvp4fnGpl3J/llCQQ1xOdqFUbkMjKgGYENziWyI0xtdk9S8wUsLBFTRkRns2eb4OUpkdEm45 mZlWyRqFN13kTvQ64jkY1sLhpRfnHPnVw+pkIUSuRujdWEPOLi3rkEqK1cBX0agJNGn0MBh64 CeIRFkI2UAGczFHafByg/3iO+J1RVGX+4nhhS4Tun6Tf9yuKfnNRq7JpMeKz6t7ahlyYMkCxR 29zQhM782vjlAcnve9S8dAzazZdTjN1ts9zNcHzHkBTFIIfoQuFWPCN/KbN/CoxSS7KGGMY/A bLZ3HOoWlNiFrlQ77tZ+4laNz0TcunrTWtgkH5TLRmbhyksmaRIH0HnE9q0z7qBla6iSAprQf Hrs9hx5T0zhy+zsxP2iNnKeKhzp8vhILRw+K9kLDMxX1CQh+e575/ugtgWrVPOj3fcqi+0SAA PsyoztqiKdnPOVrITMEkv6arP5liPZUecIOtagY4LUwD7IGR15Vkm3k9WptSgS9QlRC+QGBx7 pqvX26hkfmCCC1dPKCMHCJtmRnzEKtwMJJJmbQC/3Z1+UDcJkweplOHKixHC99YXXF1Edpoow 2ZNxrMBTnBP0A77++SS+d7ahJgTd4OK6zvsjPvXBtsynBkoWol1WIlIgu/PkFo03Oivl17Q X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.ext.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-2.3 required=4.0 tests=AWL,BAYES_00, RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.2 Subject: Re: [ptxdist] Why are the __DATE__ and __TIME__ fixed in the OSELAS Toolchain or PTXDist ? X-BeenThere: ptxdist@pengutronix.de X-Mailman-Version: 2.1.29 Precedence: list List-Id: PTXdist Development Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: ptxdist@pengutronix.de Content-Type: multipart/mixed; boundary="===============1006841287==" Sender: "ptxdist" X-SA-Exim-Connect-IP: 127.0.0.1 X-SA-Exim-Mail-From: ptxdist-bounces@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false --===============1006841287== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="zfaymd7nvuuo6zcs" Content-Disposition: inline --zfaymd7nvuuo6zcs Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hello Mircea, On Wed, Jul 21, 2021 at 04:08:30PM +0200, Mircea Ciocan wrote: >=20 > On 21.07.21 15:36, Alexander Dahl wrote: > > The reason is so called reproducible builds: > >=20 > > https://reproducible-builds.org/ > >=20 > > You can change behaviour in your BSP through the > > REPRODUCIBLE_TIMESTAMP_* variables. Access it from the menu through > > "Project Name & Version" ---> "SOURCE_DATE_EPOCH timestamps source" > >=20 > > Greets > > Alex > >=20 > Thanks a lot Alex, >=20 > I was starting to tear what little hair I have left, of course it had to = be > some google sponsored useless garbage :-(, oh well, at least is disable-a= ble > ;-). Maybe you judged only after a quick glance? I would not call it useless. See https://wiki.debian.org/ReproducibleBuilds/About on motivation for it for example. As a user concerned about integrity of the software I'm running, this approach is desirable.=20 As a developer eventually shipping firmware built by a ptxdist based BSP, I'm also interested in reproducible build artefacts. You might not need it for your usecases, other people would disagree, thus calling it garbage =E2=80=A6 well =E2=80=A6 I would not do that. > Best way is to run: >=20 > ./ptxdist setup -> "Developer Options" -> "disable reproducible builds" >=20 > and get rid of it, the following gem is from the "feature" help, I think = it > describes it nicely why is junk: >=20 > =C2=A0"This can be confusing during development. E.g. The Linux kernel bu= ild > timestamp never changes and cannot be used to ensure that the correct ker= nel > image is used. Enable this option to get a new timestamp for every PTXdist > call." Junk, garbage, see above. With kind greetings Alex --=20 /"\ ASCII RIBBON | =C2=BBWith the first link, the chain is forged. The first \ / CAMPAIGN | speech censured, the first thought forbidden, the X AGAINST | first freedom denied, chains us all irrevocably.=C2=AB / \ HTML MAIL | (Jean-Luc Picard, quoting Judge Aaron Satie) --zfaymd7nvuuo6zcs Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEwo7muQJjlc+Prwj6NK3NAHIhXMYFAmD4WsMACgkQNK3NAHIh XMbrjA//b0UT/3tSzfwQyyIqkjGXHv9O6vrBLWKF1NEqQiTNqMZi5OX9qgVZHFw2 jpbES6PPc4SliRXfy6lpCcpRdJeeHLs1mgNlkWilnPw7YhBDBZmRWDeM94nZJeVO QuQm+O4nDfwYbwNLYvHDRTnvetktv+kmFNfWJbXkMJAFV+2TNVVwcVqtoUG5GpBW /l2MpkEqfWUjCTIhZEo8FRTYQ3Qm+qajC1hKCeVsYnqBFHNURLt9NYw20ORvVtic xZAfguPJdrIARb3HaFsDsDObqjiDZnn0smMb07ZQL4U0aX8WdB17nlOpC7e4WoN0 eRh3fqZpB/SkUxFFqbECO8xarWXnZ+/hDJXTzb7f+Ip6ublApFJoI13v4q37iX9/ mfziIPtM/lkG2Uh0FkbLjpp9rT+vHH613uwVL7ZGu8QArpJk8h0BY0VP/hsvIAJU 5mLxAUZDe6Q90ZfvGM0zwuR/nX5KpCYtAA1cVf1V6Kuu8Rvc+AyCHP3oolvGi524 hXTmIO8SX4ZaER6RUtQKEwvCc4+AgLur3NWL78gmq15X3Mz8ibAI+vguMdB4mdC7 kYOVaXNhxqUW3Nlh/cMrrBuRkOfHfclFBIEYrojOAQM3jVEI+vGNR3BkYSLdI+RI Vq9hbgYgQhKhFtJ7k/GsT5WUKGBBRP85dcNOSJY77vDcEFTTHek= =eLSx -----END PGP SIGNATURE----- --zfaymd7nvuuo6zcs-- --===============1006841287== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ ptxdist mailing list ptxdist@pengutronix.de To unsubscribe, send a mail with subject "unsubscribe" to ptxdist-request@pengutronix.de --===============1006841287==--