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    SubjectRe: register long sp asm("r1") incorrect
    On Tue 2010-02-16 06:59:52, Benjamin Herrenschmidt wrote:
    > On Mon, 2010-02-15 at 08:34 +0100, Pavel Machek wrote:
    > > > On Tue, 2010-02-09 at 16:24 +0100, Pavel Machek wrote:
    > > > > ...according to gcc docs, sp should be global, or placement in
    > > > > register is not guaranteed (except at asm boundaries, but there
    > > are
    > > > > none).
    > > >
    > > > Sorry I'm not sure I grok what you mean.
    > >
    > > Well, according to gcc doscs and my experience, local "register int
    > > __asm()" variables only work by accident (or not at all).
    >
    > Hrm... we definitely rely on that for our thread_info() access, and so
    > far it has worked well for us, but I'll poke our gcc folks just in case.

    Thanks, and let me know about any results.
    Pavel
    --
    (english) http://www.livejournal.com/~pavelmachek
    (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html


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