Re: Reversible GDB resources

[Dan Shearer <dan@shearer.org>]

On Sun, Jun 05, 2005 at 08:41:49AM +0930, Dan Shearer wrote:
> I think we need more sample working code to develop a convincingly good
> design for reversible GDB more code (thanks to Johan Rydberg and Michael
> Snyder for what we have so far.)
> 
> It turns out there are several projects completed over the last two
> years that have done a reversible GDB. I asked two of them if they could
> make their code available for review, and another two if they'd mind
> publishing their reversible targets.

Here's the first one. ReVirt (part of the CoVirt project as mentioned before,
see http://www.eecs.umich.edu/CoVirt/ ) published their GDB at
http://www.eecs.umich.edu/~kingst/uml-kd.tgz . This is the entire project,
a 60Mb download.

The CoVirt project (see email address on their web page) told me:

> We did not modify gdb directly, instead we have a small wrapper
> program that intercepts each of our reverse commands and sends
> specific hypercalls to our vmm.  That program is called mygdb and can
> be found in the  uml-kd/uml-2.4.20 directory.  I uses gdb
> functionality through the gdb user interface (via pipes) and the
> algorithms used to implement each of our new commands can be found in
> that application.

-- 
Dan Shearer
dan@shearer.org