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To: Andrew Cagney <ac131313@cygnus.com>
cc: Richard.Earnshaw@arm.com, gdb@sources.redhat.com
Reply-To: Richard.Earnshaw@arm.com
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Subject: Re: ARM and virtual/raw registers 
In-reply-to: Your message of "Mon, 13 May 2002 09:13:23 EDT."
             <3CDFBBF3.7080700@cygnus.com> 
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Date: Mon, 13 May 2002 06:18:00 -0000
From: Richard Earnshaw <rearnsha@arm.com>
X-SW-Source: 2002-05/txt/msg00141.txt.bz2

> > 
> > OK, I'm trying this general approach.  One major failure, unfortunately.
> > 
> > The remote-sim code has:
> > 
> >   else if (REGISTER_NAME (regno) != NULL
> >            && *REGISTER_NAME (regno) != '\0')
> >     {
> >       char buf[MAX_REGISTER_RAW_SIZE];
> >       int nr_bytes;
> >       if (REGISTER_SIM_REGNO (regno) >= 0)
> >         nr_bytes = sim_fetch_register (gdbsim_desc,
> >                                        REGISTER_SIM_REGNO (regno),
> >                                        buf, REGISTER_RAW_SIZE (regno));
> >      ...
> >       supply_register (regno, buf);
> > 
> > Which is precisely the opposite of what I want: sim_fetch_register needs 
> > to fetch the raw (uncooked) registers, which is precisely the set that 
> > don't have names :-(
> > 
> > REGISTER_SIM_REGNO doesn't help, because we never get to the code for the 
> > registers I need.
> 
> Want it fixed?  Next to no targets define the macro so changing the the 
> behavour - make REGISTER_SIM_REGNO totally responsible for the decision 
> is straight forward.
> 
> (In fact, why didn't I do this before).

Yeah! that would be great.

R.