Messages in this thread | | | Date | Wed, 6 Feb 2002 19:12:33 -0500 | From | Jakub Jelinek <> | Subject | Re: kernel: ldt allocation failed |
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On Thu, Feb 07, 2002 at 12:21:22AM +0000, Alan Cox wrote: > > This is not possible, since then %gs:0 (which is TLS base) cannot be read. > > We would have to change the TLS ABI (thus become incompatible e.g. with Sun) > > Sun who have canned their x86 product it seems. I don't feel "the standard > requires we suck" is an appropriate justification for anything. If there > is not a sane way to follow the standard - break it. If there is a sane way > then all fair and good, find it and use it
We have changed it already (e.g,. for regparm(1), fewer relocs, shorter insn sequences, etc.), but with exception of 2 non-dynamic relocs (which get different numbers) we are still compatible. But as written later, just using a different GDT descriptor could avoid having to change the ABI, but would still have the undesirable property of requiring every app to mmap a new page at fixed location.
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