Hi Salman,
The Linux headers say the equivalent of
"rdtsc" : "=d" (xhi), "=a" (xlo)
but that should be the same as "=A". If that code works for you, it
works! I'm checking a variant of it in.
Eddie
Salman Abdul Baset wrote:
> In function click_get_cycles() defined in include/click/glue.hh, there is
> no #ifdef for x86_64. Consequently, on the machine I am testing (quad
> core, x86_64) click_get_cycles() returns zero.
>
> I copied the code from
> #if CLICK_LINUXMODULE && HAVE_INT64_TYPES && __i386__
> to fix it:
>
> <code>
> #elif CLICK_LINUXMODULE && HAVE_INT64_TYPES && __x86_64__
> uint64_t x;
> __asm__ __volatile__ ("rdtsc" : "=A" (x));
> return x;
> </code>
>
> Is this a correct way to do this?
>
> Thanks
> Salman
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