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Subjecthrtimer.h
Hi,

Since the kernel 2.6.18 has incorporated the high
resolution timer itself, I'm trying to test it, but on
my GNU/Debian I can't figure out how to include
hrtimer.h, that is on /usr/src/linux/include/, the
headers.

I use the following command to try to compile it.

gcc -D__KERNEL__ -I /usr/src/linux/include ex.c


ex.c is just the inclusion of hrtimer.h

#include <linux/hrtimer.h>
int main()
{
return 0;
}

and I get this:



In file included from
/usr/src/linux-headers-2.6.18sbr-24-11-06/include/asm/thread_info.h:16,
from
/usr/src/linux-headers-2.6.18sbr-24-11-06/include/linux/thread_info.h:21,
from
/usr/src/linux-headers-2.6.18sbr-24-11-06/include/linux/preempt.h:9,
from
/usr/src/linux-headers-2.6.18sbr-24-11-06/include/linux/spinlock.h:49,
from
/usr/src/linux-headers-2.6.18sbr-24-11-06/include/linux/seqlock.h:29,
from
/usr/src/linux-headers-2.6.18sbr-24-11-06/include/linux/time.h:7,
from
/usr/src/linux-headers-2.6.18sbr-24-11-06/include/linux/ktime.h:24,
from
/usr/src/linux-headers-2.6.18sbr-24-11-06/include/linux/hrtimer.h:19,
from ex.c:1:
/usr/src/linux-headers-2.6.18sbr-24-11-06/include/asm/processor.h:80:
error: ‘CONFIG_X86_L1_CACHE_SHIFT’ undeclared here
(not in a function)
/usr/src/linux-headers-2.6.18sbr-24-11-06/include/asm/processor.h:80:
error: requested alignment is not a constant


I will appreciate any hint.
Thanks in advance..

Ariel




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