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Re: %gs:0 thread pseudoregister in oskit-mach

From: Roland McGrath
Subject: Re: %gs:0 thread pseudoregister in oskit-mach
Date: Tue, 23 Apr 2002 13:13:23 -0400 (EDT)

> I tried to acces %gs:4 and this failed with an "illegal
> instruction". I also tried to access 0xc0000000 which got a
> segmentation fault. I don't know if I have to test more.

That's the basics.  Thanks for testing it.  I suppose the ideal test would
be a program that systematically explores the addresses from %ds and from
%gs, including negative offsets, but we can leave that as a pastime for the

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