Re: [RFA] Location list support

Daniel Jacobowitz
2003-02-21T18:02:20Z

On Fri, Feb 21, 2003 at 05:47:09PM +0000, Keith Walker wrote:
> Michal,
>
> >The structure symbol itself is filled up with the first loclist entry
> >found for this symbol (ie with the values for the lowest PC where the
> >symbol is valid).
>
> Just to point out that the DWARF2 specification does not require the
> entries in the location list to be specified in any specific order ....
> therefore you shouldn't assume that the first entry is for the lowest PC
> where the symbol is valid.
>
>
>
> Not related to your changes .... but I thought I would point out the
> following issue once variables can be described using location lists:
>
> A location list allows for overlapping address ranges, ie. Where a
> variables can be found in more that one place at a specific PC. Now for
> reading the variable's value this means that you can read from any of the
> specified locations. However if you allow writing of the variable's value
> then the write should be performed to all the locations where the variable
> can currently be found.

Thanks. This'll probably be a FIXME for now... we're not quite set up
for multiple locations.

--
Daniel Jacobowitz
MontaVista Software Debian GNU/Linux Developer