Re: [Valgrind-users] Unrecognised instruction at address

[Tom H. <to...@co...>]

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/