From owner-svn-src-all@freebsd.org  Thu Aug 13 07:24:52 2015
Return-Path: <owner-svn-src-all@freebsd.org>
Delivered-To: svn-src-all@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 7969599F859;
 Thu, 13 Aug 2015 07:24:52 +0000 (UTC)
 (envelope-from theraven@FreeBSD.org)
Received: from theravensnest.org (theraven.freebsd.your.org [216.14.102.27])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client CN "cloud.theravensnest.org",
 Issuer "StartCom Class 1 Primary Intermediate Server CA" (not verified))
 by mx1.freebsd.org (Postfix) with ESMTPS id 3F32117C;
 Thu, 13 Aug 2015 07:24:51 +0000 (UTC)
 (envelope-from theraven@FreeBSD.org)
Received: from [192.168.0.7] (cpc16-cmbg15-2-0-cust60.5-4.cable.virginm.net
 [86.5.162.61]) (authenticated bits=0)
 by theravensnest.org (8.15.1/8.15.1) with ESMTPSA id t7D7OeZF087770
 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NO);
 Thu, 13 Aug 2015 07:24:43 GMT (envelope-from theraven@FreeBSD.org)
X-Authentication-Warning: theravensnest.org: Host
 cpc16-cmbg15-2-0-cust60.5-4.cable.virginm.net [86.5.162.61] claimed to be
 [192.168.0.7]
Content-Type: text/plain; charset=us-ascii
Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2102\))
Subject: Re: svn commit: r286715 - head/lib/libc/string
From: David Chisnall <theraven@FreeBSD.org>
In-Reply-To: <CAOfEmZgdpNL7iAX=dNYBidNmhHJqwonWTSP+FMeyMY9Xfto4wg@mail.gmail.com>
Date: Thu, 13 Aug 2015 08:24:42 +0100
Cc: "src-committers@freebsd.org" <src-committers@freebsd.org>,
 "svn-src-all@freebsd.org" <svn-src-all@freebsd.org>,
 "svn-src-head@freebsd.org" <svn-src-head@freebsd.org>
Content-Transfer-Encoding: quoted-printable
Message-Id: <0CFBA0CC-FEEE-40CE-BC47-065613C64293@FreeBSD.org>
References: <201508130231.t7D2VOhc069855@repo.freebsd.org>
 <20150813134548.U1375@besplex.bde.org>
 <CAOfEmZjOoYabLkQdhsZNPfV3r1CEk-dS9tFk-_oktqFvwSSnPw@mail.gmail.com>
 <CAOfEmZgdpNL7iAX=dNYBidNmhHJqwonWTSP+FMeyMY9Xfto4wg@mail.gmail.com>
To: araujo@FreeBSD.org
X-Mailer: Apple Mail (2.2102)
X-BeenThere: svn-src-all@freebsd.org
X-Mailman-Version: 2.1.20
Precedence: list
List-Id: "SVN commit messages for the entire src tree \(except for &quot;
 user&quot; and &quot; projects&quot; \)" <svn-src-all.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/svn-src-all>,
 <mailto:svn-src-all-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-all/>
List-Post: <mailto:svn-src-all@freebsd.org>
List-Help: <mailto:svn-src-all-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/svn-src-all>,
 <mailto:svn-src-all-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 13 Aug 2015 07:24:52 -0000

On 13 Aug 2015, at 08:11, Marcelo Araujo <araujobsdport@gmail.com> =
wrote:
>=20
> The bcopy() was removed in IEEE Std 1003.1-2008 and it is marked as =
LEGACY in IEEE Std 1003.1-2004. However, BSD has its implementation =
before IEEE Std 1003.1-2001.
>=20
> In my understood it is obsolete on POSIX, but not truly obsolete for =
FreeBSD.
> So I believe, this patch now address it in the correct way.

Its use should be strongly discouraged in FreeBSD (or, ideally, replaced =
with the macro from the POSIX man page).  LLVM does a load of =
optimisations for memmove and memcpy - using bcopy is a really good way =
of bypassing all of these.

David