Re: [Valgrind-users] Incorrect results from inline assembly when running under Valgrind

[Jeffrey W. <nol...@gm...>]

On Tue, Feb 11, 2014 at 4:11 AM, Tom Hughes <to...@co...> wrote:
> On 11/02/14 08:38, Jeffrey Walton wrote:
>
>> Perhpas a --cpu=XXX switch would be helpful for switching between
>> cpu's. (Forgive me if its non-trivial to do. I know nothing about
>> Valgrind architecture or operation. I just know a bit about using it
>> to hunt leaks).
>
>
> There's no point us allowing you to request a CPUID that reports RDRAND
> support if valgrind is going to bomb out with an unsupported instruction
> error as soon as you try and execute it.
>
RDRAND is easy - back it with /dev/urand.

AES-NI seems to be the difficult one, and I'm surprised Valgrind
reports its supported.

Jeff