Messages in this thread | | | Subject | Re: [patch] tls-2.5.30-A1 | From | Alan Cox <> | Date | 07 Aug 2002 23:01:34 +0100 |
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On Wed, 2002-08-07 at 19:33, Linus Torvalds 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)
Lots of BIOSes (a million monkeys bashing on typewriters will write something that passes some BIOS vendor QA in about 2 seconds) illegally assume that 0040: points at the BIOS data segment 0040 when making APM32 calls. Sufficient that Windows makea it so and its never going to get corrected.
> Then, for double extra bonus points somebody should look into whether > those damn PnP BIOS segments could be simply made to be TLS segments > during module init. I don't know if that PnP stuff is required later or > not.
PnPBIOS has to rewrite segments as it goes for data passing. It doesnt really matter where you stuff them though.
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