Chief number in TID's

[Michael Hohmuth]

Marcus,

I think there is a misunderstanding here -- Adam's question was why is
the number of the chief task a part of the thread-id data structure
(l4_threadid_t).  As it would be beneficial to move from 64-bit thread
ids to 32-bit thread ids on 32-bit architectures like x86 and
StrongARM, Adam is looking for ways to reduce the size of the
thread-id data structure, and one way to do so would be to throw out
the chief number.

Personally, I don't think there is a real reason to keep the chief
number in the thread id except for backward compatibility and for ease
of porting L4 apps to a changed ABI.

L4 has inherited this data structure from L3, and I would be
interested in why the chief number ended up in the thread id in the
first place.  Jochen?

Michael
-- 
hohmuth at innocent.com, hohmuth at inf.tu-dresden.de
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