PATCH: Use __asm__("rsp") to get URRENT_STACK_FRAME

[H.J. Lu]

On Mon, Mar 19, 2012 at 3:10 PM, Richard Henderson <rth@twiddle.net> wrote:
> On 03/19/12 14:34, H.J. Lu wrote:
>>  #define CURRENT_STACK_FRAME \
>> -  ({ char *frame; asm ("movq %%rsp, %0" : "=r" (frame)); frame; })
>> +  ({ char *frame; asm ("mov %%" RSP_LP ", %0" : "=r" (frame)); frame; })
>
> I'm pretty sure
>
>  ({ register void *esp __asm__("esp"); esp; })
>
> will work without the unneeded copy.
>

Thanks for the pointer.  Here is the updated patch.  OK to install?

Thanks.

-- 
H.J.
--
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