Re: printing "variable-sized" registers

[Daniel Jacobowitz <drow@false.org>]

On Mon, Jun 06, 2005 at 05:52:07PM +0400, Vladimir Prus wrote:
> > The last one.  The best you can do the rest of the time is going to be
> > giving them a type containing the maximum number of values and fill in
> > with dummies - maybe also including the count?
> 
> This's what I was doing -- assigning "array of 32 uin64s" type to those 
> registers and they are printed with "info all-registers", but the dummy
> values do no look nice when presented to the user.

Right.  You can correct how they're printed in info registers and info
all-registers by providing your own print_registers_info.

> > If you want "print $reg" to display them nicely, you're going to need
> > to teach GDB's type system about it somehow.  I have no idea what that
> > change would look like or how it would work, but it could be generally
> > useful - it's the same concept as prettyprinting a tagged union, I think.
> 
> Ok, understood. With the attached patch I get what I want, but I have no idea 
> if this patch is good or not.

No, I don't think this is an acceptable way to do it - too inelegant. 
I don't know.

-- 
Daniel Jacobowitz
CodeSourcery, LLC