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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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