Register numbers on hppa64

[John David Anglin]

> No what I'm saying is that .dwarf_frame uses different register
> numbers than .debug_info and other .debug_xxx sections.  This is
> awkward and confusing because the same DWARF operations that refer to
> register numbers are used in both sections but suddenly have a
> different meaning.

Ok.

If we change the register use in .dwarf_frame, then we are breaking
compatibility with previously compiled code.  This isn't a big deal
under HP-UX (dwarf debugging was totally broken on hppa64 until a
recent assembler fix).  However, there is a fair bit of installed
code running linux.  Thus, I would say not change the status quo
if the above confusion can be handled.  The actual numbers used for
the FP registers are obscure and I doubt many people actually care
what they are.  It's only people maintaining the dwarf code that
are likely to get confused.  If readelf produced a text rather than
numeric representation, then the problem would largely go away.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)