cache info

[Ulrich Drepper]

I've added some sysconf functionality which allows programs to query
information about the caches of the processor(s) used.  This code is of
course highly architecture specific.  Even more, processors from
different vendors will need to be treated differently.

So far I have Intel x86, I'll probably do Intel x86-64 today.  Maybe
I'll get to ia64 some day.  The rest is up to others to fill in.

-- 
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖