From owner-svn-src-projects@FreeBSD.ORG  Mon Oct  7 16:57:57 2013
Return-Path: <owner-svn-src-projects@FreeBSD.ORG>
Delivered-To: svn-src-projects@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTP id 0E4AA9D7;
 Mon,  7 Oct 2013 16:57:56 +0000 (UTC) (envelope-from jhb@freebsd.org)
Received: from bigwig.baldwin.cx (bigwig.baldwin.cx [IPv6:2001:470:1f11:75::1])
 (using TLSv1 with cipher ADH-CAMELLIA256-SHA (256/256 bits))
 (No client certificate requested)
 by mx1.freebsd.org (Postfix) with ESMTPS id BFDF821CA;
 Mon,  7 Oct 2013 16:57:56 +0000 (UTC)
Received: from jhbbsd.localnet (unknown [209.249.190.124])
 by bigwig.baldwin.cx (Postfix) with ESMTPSA id E2CFFB95B;
 Mon,  7 Oct 2013 12:57:55 -0400 (EDT)
From: John Baldwin <jhb@freebsd.org>
To: Konstantin Belousov <kostikbel@gmail.com>
Subject: Re: svn commit: r256042 - in projects/random_number_generator:
 share/examples/kld/random_adaptor sys/conf sys/dev/glxsb sys/dev/hifn
 sys/dev/random sys/dev/rndtest sys/dev/safe sys/dev/syscons sys/dev/...
Date: Mon, 7 Oct 2013 12:57:20 -0400
User-Agent: KMail/1.13.5 (FreeBSD/8.4-CBSD-20130906; KDE/4.5.5; amd64; ; )
References: <201310040655.r946t6ZR038091@svn.freebsd.org>
 <20131004070521.GQ41229@kib.kiev.ua>
In-Reply-To: <20131004070521.GQ41229@kib.kiev.ua>
MIME-Version: 1.0
Message-Id: <201310071257.20224.jhb@freebsd.org>
Content-Type: Text/Plain;
  charset="iso-8859-15"
Content-Transfer-Encoding: 7bit
X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.2.7
 (bigwig.baldwin.cx); Mon, 07 Oct 2013 12:57:56 -0400 (EDT)
Cc: svn-src-projects@freebsd.org, src-committers@freebsd.org,
 Mark Murray <markm@freebsd.org>
X-BeenThere: svn-src-projects@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: "SVN commit messages for the src &quot; projects&quot;
 tree" <svn-src-projects.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/svn-src-projects>, 
 <mailto:svn-src-projects-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-projects>
List-Post: <mailto:svn-src-projects@freebsd.org>
List-Help: <mailto:svn-src-projects-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-projects>, 
 <mailto:svn-src-projects-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 07 Oct 2013 16:57:57 -0000

On Friday, October 04, 2013 3:05:21 am Konstantin Belousov wrote:
> On Fri, Oct 04, 2013 at 06:55:06AM +0000, Mark Murray wrote:
> >  #ifdef __amd64__
> > -	    ".byte\t0x48,0x0f,0xc7,0xf0\n\t" /* rdrand %rax */
> > +	    "rdrand\t%%rax\n\t"
> >  	    "jnc\t1f\n\t"
> >  	    "movq\t%%rax,%1\n\t"
> >  	    "movl\t$8,%%eax\n"
> >  #else /* i386 */
> > -	    ".byte\t0x0f,0xc7,0xf0\n\t" /* rdrand %eax */
> > +	    "rdrand\t%%eax\n\t"
> >  	    "jnc\t1f\n\t"
> >  	    "movl\t%%eax,%1\n\t"
> >  	    "movl\t$4,%%eax\n"
> This should break the build with the in-tree binutils, i.e. when gcc
> is used.  The same for the chunks of the VIA asm.

How hard would it be to just add rdrand to binutils?

Ah, looks like dim@ just added it.  I have a patch for amd64's DDB that I'll 
test locally.

-- 
John Baldwin