On Mon, 2010-02-15 at 08:34 +0100, Pavel Machek wrote:

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On Tue, 2010-02-09 at 16:24 +0100, Pavel Machek wrote:

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...according to gcc docs, sp should be global, or placement in
register is not guaranteed (except at asm boundaries, but there

are

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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.

Cheers,
Ben.