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

[Jens Axboe <jaxboe@fusionio.com>]

On 08/10/2010 08:11 AM, Michael Opdenacker wrote:
> Hello,
> 
> Though the arm platform seems to be supported, fio fails to build on the
> arm platform. Other non Intel platforms should also be impacted.
> 
> gettime.o: In function `get_cycles_per_usec':
> /home/ubuntu/.phoronix-test-suite/installed-tests/fio/fio-1.42/gettime.c:192:
> undefined reference to `get_cpu_clock'
> /home/ubuntu/.phoronix-test-suite/installed-tests/fio/fio-1.42/gettime.c:199:
> undefined reference to `get_cpu_clock'
> make: *** [fio] Error 1
> 
> Unlike in the fio_gettime, where there is an "#ifdef
> ARCH_HAVE_CPU_CLOCK" statement around the calls to get_cpu_clock(),
> there are other places where this function is used unconditionally.
> 
> 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.

-- 
Jens Axboe


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