From owner-svn-src-all@FreeBSD.ORG Tue Feb 4 08:44:45 2014 Return-Path: Delivered-To: svn-src-all@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id B8846EC2; Tue, 4 Feb 2014 08:44:45 +0000 (UTC) Received: from theravensnest.org (theraven.freebsd.your.org [216.14.102.27]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 7DDD01213; Tue, 4 Feb 2014 08:44:45 +0000 (UTC) Received: from [192.168.0.7] (cpc28-cmbg15-2-0-cust64.5-4.cable.virginm.net [86.27.189.65]) (authenticated bits=0) by theravensnest.org (8.14.5/8.14.5) with ESMTP id s148fhvp062834 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO); Tue, 4 Feb 2014 08:42:40 GMT (envelope-from theraven@FreeBSD.org) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 7.0 \(1822\)) Subject: Re: svn commit: r261283 - in head: contrib/libc++ contrib/libc++/include contrib/libc++/include/experimental contrib/libc++/include/ext contrib/libc++/src etc/mtree lib/libc++ sys/sys tools/build/mk From: David Chisnall In-Reply-To: <20140203170031.2166661c@kan.dyndns.org> Date: Tue, 4 Feb 2014 08:41:32 +0000 Content-Transfer-Encoding: quoted-printable Message-Id: <8A874F96-67A8-41B9-AC99-22D2ED3A5A1C@FreeBSD.org> References: <201401300744.s0U7iNLt016044@svn.freebsd.org> <20140203123235.GA1540@mole.fafoe.narf.at> <20140203133254.243db1cd@kan.dyndns.org> <73ED697C-09CC-49D6-8EBD-0F0E20232729@FreeBSD.org> <20140203170031.2166661c@kan.dyndns.org> To: Alexander Kabaev X-Mailer: Apple Mail (2.1822) Cc: svn-src-head@FreeBSD.org, svn-src-all@FreeBSD.org, Stefan Farfeleder , Dimitry Andric , src-committers@FreeBSD.org X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Feb 2014 08:44:45 -0000 On 3 Feb 2014, at 22:00, Alexander Kabaev wrote: > At the very least, new library did remove > _ZNKSt3__111__libcpp_db12__comparableEPKvS2_ which was public before. This symbol is part of the debugging infrastructure and is used when you = build your code with aggressive debug checks by defining _LIBCPP_DEBUG2 = when you build your code. It is not intended for deployment builds and = so is not part of the stable API. You can only access it by explicitly = enabling debug builds. > Your definition of ABI stability might be different from mine, but in > my book that counts as a backward compatibility breakage. And even if > that symbol was not supposed to be lined to by anyone, it should not > have been exported in the first place. It sounds like you're just looking at the output from nm, without = bothering to check how the symbols are used. =20 David