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%gs:0 thread pseudoregister in oskit-mach


From: Roland McGrath
Subject: %gs:0 thread pseudoregister in oskit-mach
Date: Sun, 7 Apr 2002 20:12:01 -0400 (EDT)

I have implemented the %gs:0 pseudo-register in oskit-mach.  If you are
already using oskit-mach, please update and try out the new code.  What you
should now see is that in user threads %gs has a different value from %ds.
You should be able to read and write one and only one word at %gs:0.  This
should initially read as zero in new threads, and be saved and restored by
thread switching.



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