Re: [Valgrind-users] Unrecognised instruction at address

[Vivek S. <s.v...@gm...>]

Thanks for the reply Tom!

To clarify: Valgrind has to be built in 64 bit mode before running against
my app to profile it?



On 4 February 2014 17:05, Tom Hughes <to...@co...> wrote:

> On 04/02/14 11:03, Vivek Sundararajan wrote:
>
>  Below is the output I get stating "unhandled instruction".
>> Is this because of depending on libraries that are not build with the
>> above flags?
>>
>
> It's the AESKEYGENASSIST instruction which, like most of the more recent
> instructions, is only supported in 64 bit mode at the moment and you are
> trying to use it in 32 bit code.
>
> In https://bugs.kde.org/show_bug.cgi?id=296577 Julian commented:
>
> > This is AESKEYGENASSIST, which is supported in 64 bit mode but not 32
> > bit. Realistically I don't think it will get supported in 32 bit mode
> > -- that doesn't support anything after SSSE3. Can you develop in 64
> > bit mode instead? The main support emphasis now is x86_64 (64 bit)
> > and ARM; x86 (32 bit) is more-or-less "legacy".
>
> Note that the bug I reference above is a bit confused because somebody
> raised it about one instruction and then somebody else added a comment
> about a different instruction.
>
> Tom
>
> --
> Tom Hughes (to...@co...)
> http://compton.nu/
>



-- 
Regards,
Vivek.S