lkml.org 
[lkml]   [2006]   [Jun]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: broken local_t on i386
    On Mon, 12 Jun 2006, Andi Kleen wrote:

    > > I thought you had some funky segment registers on i386 and x86_64. Cant
    > > they be switched on context switch? If an inc/dec could work relative to
    > > those then you would not need a virtual mapping.
    >
    > The segment register needs an offset. So you need the linker to generate
    > the offset from the base of the per cpu segment somehow. At compile time the
    > address is not known so it cannot be done then.

    Define something like a big struct and use offsetof?

    So the compiler is not able to generate an offset to the beginning of a
    data segment?
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2006-06-12 21:18    [W:0.019 / U:0.712 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site