From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 94641 invoked by alias); 9 Dec 2017 00:17:11 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Received: (qmail 94630 invoked by uid 89); 9 Dec 2017 00:17:11 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-6.9 required=5.0 tests=BAYES_00,GIT_PATCH_1,SPF_HELO_PASS,T_RP_MATCHES_RCVD autolearn=ham version=3.3.2 spammy=Hx-languages-length:1663, promise, risk 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; Sat, 09 Dec 2017 00:17:09 +0000 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 8F6A136809; Sat, 9 Dec 2017 00:17:08 +0000 (UTC) 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 486FF17962; Sat, 9 Dec 2017 00:17:05 +0000 (UTC) Subject: Re: GDB 8.1 branching 2017-12-04 update To: Joel Brobecker References: <20171204145644.hjd3jisybmndqn7p@adacore.com> <218e185c-6d46-cd1a-b2e6-7d65e55d1209@redhat.com> <20171204170202.lfukxwrqgzgbfxqm@adacore.com> Cc: gdb-patches@sourceware.org, tom@tromey.com, sergiodj@redhat.com, yao.qi@arm.com From: Pedro Alves Message-ID: <947684ba-ac4c-79e1-c10b-bd2258aaf111@redhat.com> Date: Sat, 09 Dec 2017 00:17:00 -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: <20171204170202.lfukxwrqgzgbfxqm@adacore.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-SW-Source: 2017-12/txt/msg00211.txt.bz2 On 12/04/2017 05:02 PM, Joel Brobecker wrote: >> One thing that I was thinking it'd be nice to see about getting >> into 8.1 was the DWARF5 index stuff (standard replacement for >> .gdb_index): >> >> https://sourceware.org/ml/gdb-patches/2017-05/msg00577.html >> >> Not sure about making that the default (seems risky), but it >> might be nice to provide the option so that users/distros can >> start experimenting (and so that Fedora/RHEL doesn't end up >> having to backport yet another large series... :-P) . I tried >> to review that in the past but stumbled on choices I didn't quite >> understand, and there are also some open questions, but I was >> planning on taking another look. I can't really promise I/we can >> get it done this week, so not sure about blocking the branching >> because of it. > > Indeed, it would be nice, and we can wait a bit to see if we manage > to get it in. But looking at the size of the patch, unless you think > it's almost ready and it's only a matter of a few fixes here and > there, it seems like this might be a bit risky... > I've played around with that series for a few days (on and off...), and I've now pushed it in, with an important change that eliminates most of the risk, IMO -- the original series made GDB default to the new index format, while I left .gdb_index the default. This should allow users/distros experimenting, and hopefully any follow up fixes should be small/contained and easy to backport. > Let's give ourselves this week, and see where we get. In the meantime, > I've added this to the "maybe" section, before 18.1 branching. Thanks, Pedro Alves