From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 57099 invoked by alias); 3 Jan 2020 16:21:45 -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 57089 invoked by uid 89); 3 Jan 2020 16:21:45 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-8.7 required=5.0 tests=AWL,BAYES_00,KAM_SHORT,RCVD_IN_DNSWL_NONE,SPF_HELO_PASS autolearn=ham version=3.3.1 spammy= X-HELO: gateway20.websitewelcome.com Received: from gateway20.websitewelcome.com (HELO gateway20.websitewelcome.com) (192.185.63.14) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Fri, 03 Jan 2020 16:21:43 +0000 Received: from cm14.websitewelcome.com (cm14.websitewelcome.com [100.42.49.7]) by gateway20.websitewelcome.com (Postfix) with ESMTP id EF36E400C7E12 for ; Fri, 3 Jan 2020 09:10:08 -0600 (CST) Received: from box5379.bluehost.com ([162.241.216.53]) by cmsmtp with SMTP id nPhmieRkK4kpjnPhmi93pL; Fri, 03 Jan 2020 10:21:42 -0600 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=tromey.com; s=default; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date: References:Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=NOkA5dz54nCi8+MEIoJlFFhThlg+/SZevA3C9rqXuq4=; b=ggGDry1v2LpsM4G5tfwpjZkJIt uL+7YBijtWHRJmj60JWV6V5kuAXTYsdFjklTYVS88Kx7oESfwU0kkii3GZ4Y5KLkEvvoeO7m4hCNi FLQiUuFMfdLd+5GiiX6F3lEv+; Received: from 75-166-123-50.hlrn.qwest.net ([75.166.123.50]:55550 helo=murgatroyd) by box5379.bluehost.com with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.92) (envelope-from ) id 1inPhl-002BzX-C5; Fri, 03 Jan 2020 09:21:41 -0700 From: Tom Tromey To: Andrew Burgess Cc: Joel Brobecker , Eli Zaretskii , gdb-patches@sourceware.org Subject: Re: GDB 9.1 release 2019-12-23 update References: <20191223093031.GE11677@adacore.com> <835zi7xh7o.fsf@gnu.org> <20191224034652.GA25918@adacore.com> <20191224122354.GH3865@embecosm.com> Date: Fri, 03 Jan 2020 16:21:00 -0000 In-Reply-To: <20191224122354.GH3865@embecosm.com> (Andrew Burgess's message of "Tue, 24 Dec 2019 12:23:54 +0000") Message-ID: <877e28v7cb.fsf@tromey.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-SW-Source: 2020-01/txt/msg00040.txt.bz2 >>>>> "Andrew" == Andrew Burgess writes: Andrew> That said, I had a look at the code in question and I suspect the Andrew> warning is incorrect, unless I'm missing some clever C++ corner case, Andrew> which is quite possible. So, we have one of these: Andrew> gdb::optional asm_list; Andrew> The "uninitialised" variable is a member of the ui_out_emit_list, Andrew> being used during its destructor. But the destructor is only called Andrew> if the ui_out_emit_list is initialised, which requires the member Andrew> variable to be set.... Andrew> Currently I would be happy to release with the warning present. You didn't miss anything. This is just a bug in gcc (IMO). There's a discussion here: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80635 Tom