From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 123665 invoked by alias); 21 Sep 2017 12:39:21 -0000 Mailing-List: contact gdb-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-owner@sourceware.org Received: (qmail 123644 invoked by uid 89); 21 Sep 2017 12:39:20 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-0.9 required=5.0 tests=BAYES_00,KAM_LAZY_DOMAIN_SECURITY,RP_MATCHES_RCVD,SPF_HELO_PASS autolearn=no version=3.3.2 spammy=merit, claim X-Spam-User: qpsmtpd, 2 recipients X-HELO: mx1.redhat.com Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Thu, 21 Sep 2017 12:39:19 +0000 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 4FCAC5F7AD; Thu, 21 Sep 2017 12:39:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 4FCAC5F7AD Authentication-Results: ext-mx10.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx10.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=palves@redhat.com Received: from [127.0.0.1] (ovpn04.gateway.prod.ext.ams2.redhat.com [10.39.146.4]) by smtp.corp.redhat.com (Postfix) with ESMTP id 91EF15EDF2; Thu, 21 Sep 2017 12:39:09 +0000 (UTC) Subject: Re: meaning of "Automatic date update in version.in" commits To: Petr Ovtchenkov References: <20170921135845.479dfc76@void-ptr.info> <024439c7-2083-d368-0138-2160e4494b81@redhat.com> <20170921152240.16bb4cc0@void-ptr.info> Cc: Matt Rice , Fiodar Stryzhniou , Andreas Schwab , Binutils , Joel Brobecker , Matthias Klose , GDB From: Pedro Alves Message-ID: <8740f2a7-1300-3116-f34b-5487a8cd8b2b@redhat.com> Date: Thu, 21 Sep 2017 12:39:00 -0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0 MIME-Version: 1.0 In-Reply-To: <20170921152240.16bb4cc0@void-ptr.info> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-SW-Source: 2017-09/txt/msg00077.txt.bz2 On 09/21/2017 01:22 PM, Petr Ovtchenkov wrote: > On Thu, 21 Sep 2017 12:36:46 +0100 > Pedro Alves wrote: >> I.e., this whole thread feels like the classical XY problem. >> >> What is the actual problem that you're trying to solve? > > Problem remains original. > > "Automatic date update in version.in" commits are > - litter commits tree > - create problems for deterministic, bit-identical and/or verifiable builds. [snip distractions from the original problem] > Am I quite clear? No. The "litter" problem is real, but minor. The determinism claim would have merit, if it were a real problem. But it's not. Every checkout of a given git hash gets the exact same sources with the same date stamp. It's totally deterministic. So again, what problem are you trying to solve? Thanks, Pedro Alves