Re: ARM register pages

Daniel Jacobowitz
2005-06-09T21:16:21Z

On Thu, Jun 09, 2005 at 02:14:11PM -0700, Shaun Jackman wrote:
> On 6/9/05, Daniel Jacobowitz <drow@false.org> wrote:
> > The easiest solution will be to do this instead:
> > abt: [copy the banked address to lr, which is not useful at this
> > point]
> > 1: b 1b
>
> If it's possible, I'd prefer to accomplish a backtrace without
> altering the target's code. I was hoping that "set $cpsr=0x1f" would
> make $lr_usr visible in $lr to gdb, but the value of $lr displayed by
> "i reg" remains the same. Does gdb cache the value of the register? Is
> there a way to force gdb to reload the value of the register from the
> remote target?

No, it does not cache it. You will need to use the "set debug"
commands to work out for yourself what your target is doing; "set debug
remote" is a good one, and the remote protocol is described in the
manual if you aren't familiar with it.

--
Daniel Jacobowitz
CodeSourcery, LLC