Re: Build issue on arm: undefined reference to `get_cpu_clock'

[Michael Opdenacker <michael.opdenacker@xxxxxxxxxxxxxxxxxx>]

Hi Jens,

On 08/10/2010 08:04 PM, Jens Axboe wrote:
> On 08/10/2010 08:11 AM, Michael Opdenacker wrote:
>> The get_cpu_clock function is only defined in
>> arch/arch-ia64.h
>> arch/arch-x86.h
>> arch/arch-x86_64.h
>>
>> How are other architectures supported? I don't understand fio can
>> support them without defining the get_cpu_clock() function.
>>
>> I did my tests on version 1.42, but faced the same issues with the
>> latest git version.
>>     
> Indeed, dunno what happened there. I'll take a look.
>   
I have seen your addition of get_cpu_clock() for the ppc architecture.

By the way, wouldn't it be more portable to use the POSIX
clock_gettime() function instead of reading an architecture dependent
register? At least, this is recommended on
http://en.wikipedia.org/wiki/Time_Stamp_Counter

Thank you for your support,

Cheers,

Michael.

-- 
Michael Opdenacker, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
+ 33 621 604 642

--
To unsubscribe from this list: send the line "unsubscribe fio" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html