Re: using tracepoints function with both host and target on same computer

[Daniel Jacobowitz <drow at mvista dot com>]

On Wed, Aug 07, 2002 at 10:21:13AM -0500, William A. Gatliff wrote:
> Daniel:
> 
> 
> On Wed, Aug 07, 2002 at 11:01:50AM -0400, Daniel Jacobowitz wrote:
> > You don't do them in actual realtime, but neither do you wait for all
> > of GDB to process the event; you receive the breakpoint, collect
> > tracepoint data, and immediately resume without touching GDB's event
> > loop.  It's a little slower than an in-application stub because it has
> > to use ptrace to read memory/registers, but not substantially slower.
> 
> ... except that I don't think you'd want to be doing that across a
> 9600bps remote link.  Or, you'd at least want to have the option not
> to.

I was talking about the native case.  If you have a stub, you do it in
the stub.  You do it wherever a trap is handled; in native that's GDB
itself, otherwise it's gdbserver or your target stub.


-- 
Daniel Jacobowitz                           Carnegie Mellon University
MontaVista Software                         Debian GNU/Linux Developer