Messages in this thread | | | From | Andi Kleen <> | Subject | Re: broken local_t on i386 | Date | Tue, 13 Jun 2006 06:02:59 +0200 |
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On Monday 12 June 2006 22:12, Alan Cox wrote: > Ar Llu, 2006-06-12 am 20:11 +0200, ysgrifennodd Andi Kleen: > > 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. > > What happens if you put a section at zero and a section at non-fixed > address (aligned). In the asm macros you stick the variable in both, > using the zero based one for linker symbols and the non zero based one > for data, then discard the zero based one.
Interesting idea. Maybe it'll work.
> That used to work for old binutils which didn't care/spot if you were > discarding material you actually linked against. Not sure what todays > binutils does with it.
AFAIK it warns at least. Might get noisy.
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