Messages in this thread | | | Date | Wed, 7 Aug 2002 11:57:36 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: [patch] tls-2.5.30-A1 |
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On Thu, 8 Aug 2002, Stephen Rothwell wrote:
> On Wed, 7 Aug 2002 11:33:23 -0700 (PDT) Linus Torvalds <torvalds@transmeta.com> wrote: > > > > - keep the TLS entries contiguous, and make sure that segment 0040 (ie > > GDT entry #8) is available to a TLS entry, since if I remember > > correctly, that one is also magical for old Windows binaries for all > > the wrong reasons (ie it was some system data area in DOS and in > > Windows 3.1) > > segment 0040 is used by the APM driver to work around bugs in some BIOS > implementations where some (brain-dead) BIOS writer has assume that the > BIOS data area is still available in protected mode ...
Ok, sounds like that one ends up having to be a fixed segment (I wonder if Wine can take advantage of it? looks like it is hardcoded to base 0x400, which is probably fine for Wine anyway - just map something at the right address - but it looks CPL0 only? Might be ok to just make it available to user space).
Linus
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