Date: Thu, 13 Aug 2015 10:25:38 -0500 From: Pedro Giffuni <pfg@FreeBSD.org> To: araujo@FreeBSD.org, David Chisnall <theraven@freebsd.org> 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> Subject: Re: svn commit: r286715 - head/lib/libc/string Message-ID: <55CCB6F2.7080008@FreeBSD.org> In-Reply-To: <CAOfEmZiJVazkxi%2Brw%2Bv8Lke-KthwRFd=9c=WvU3jSs1p%2Bt4jJA@mail.gmail.com> References: <201508130231.t7D2VOhc069855@repo.freebsd.org> <20150813134548.U1375@besplex.bde.org> <CAOfEmZjOoYabLkQdhsZNPfV3r1CEk-dS9tFk-_oktqFvwSSnPw@mail.gmail.com> <CAOfEmZgdpNL7iAX=dNYBidNmhHJqwonWTSP%2BFMeyMY9Xfto4wg@mail.gmail.com> <0CFBA0CC-FEEE-40CE-BC47-065613C64293@FreeBSD.org> <CAOfEmZiJVazkxi%2Brw%2Bv8Lke-KthwRFd=9c=WvU3jSs1p%2Bt4jJA@mail.gmail.com>
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FWIW; I think the posix manpage is in the right direction. For a more detailed discussion about replacing bcopys you may read Ted Unangst's blog post[1], but of course OpenBSD is not FreeBSD. I honesly would sepnd much time in bcopy, it is one of those things that will stay in FreeBSD for a long while. I would focus on strtoq() and strtouq() which carry this *comical* notice in stdlib.h : /* Deprecated interfaces, to be removed in FreeBSD 6.0. */ Cheers, Pedro. [1] http://www.tedunangst.com/flak/post/memcpy-vs-memmove On 13/08/2015 02:56 a.m., Marcelo Araujo wrote: > Hi David, > > So it means, this commit here was right already: > https://svnweb.freebsd.org/base?view=revision&revision=286651 > > Although I made a mistake with the date. > > > All the best. > > 2015-08-13 15:24 GMT+08:00 David Chisnall <theraven@freebsd.org > <mailto:theraven@freebsd.org>>: > > On 13 Aug 2015, at 08:11, Marcelo Araujo <araujobsdport@gmail.com > <mailto:araujobsdport@gmail.com>> wrote: > > > > 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. > > > > In my understood it is obsolete on POSIX, but not truly obsolete 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 > > > > > -- > > -- > Marcelo Araujo (__) > araujo@FreeBSD.org <mailto:araujo@FreeBSD.org> \\\'',) > http://www.FreeBSD.org <http://www.freebsd.org/>; \/ \ ^ > Power To Server. .\. /_)
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