pr4225 branch status

[Roland McGrath]

For user-level stuff, we really should not be using those macros at all.
Those are for in-kernel registers.  The access to registers done at
utrace-based probes should use the user_regset access functions.

On the translator side, this should be using some machine backend
information (already available from libdwfl) to map the DWARF register
numbers (and register names, for tapset use) to user_regset data.


Thanks,
Roland