Re: two bugs in the arm simulator

[Daniel Jacobowitz <drow@false.org>]

On Mon, Jul 04, 2005 at 03:20:36PM +0900, Janne Hellsten wrote:
> Hi,
> 
> > GNATS ought to have sent you something back.  It does have your
> > address.  I'm afraid PR 1900 is the least of the problems with the
> > simulator on 64-bit hosts; it appears to be pretty busted.  No one is
> > working on either AFAIK though I think there's another PR about the
> > busted simulator somewhere.
> 
> Yes, it did send back my reports, but nothing else.
> 
> I can probably fix PR 1957 myself, I'd like to get familiar with the
> simulator.  The thing is that I'd like to extend GDB's ARM simulator

In that case, you may want to file an FSF copyright assignment. 
Otherwise we can't accept substantive contributions.

> so that I can get it to report the number of cycles spent in some
> program.  This could be used for simple benchmarking (to detect
> regression over time).
> 
> I wonder if such an extension would be a big task?  I'm not familiar
> with GDB's code at all.

The GDB simulators aren't even a little bit cycle accurate,
unfortunately.

-- 
Daniel Jacobowitz
CodeSourcery, LLC