Re: ARM frame fp is not always FP_REGNUM

[Michael Snyder <msnyder at cygnus dot com>]

Alexandre Oliva wrote:
> 
> On Jul  4, 2000, Andrew Cagney <ac131313@cygnus.com> wrote:
> 
> > FP_REGNUM refers to GDB's internal frame-handle / frame-pointer /
> > frame-base variable.
> 
> On ARM, it's register 11, which is a real register.  But SP_REGNUM is
> register 13.  Then, when framereg == 13 in EXTRA_FRAME_INFO, `info
> regs' will display the value of r13 for r11, and the actual value of
> r11 cannot be obtained.

Yes it can.  If you say "print $fp" you will get the value
of register 11.  I know this is confusing -- nay, broken.
We've talked for a long time about what to do about it.