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/...

[John Baldwin]

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