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Re: invoking GDB from FE and signals


On Mon, May 15, 2006 at 03:17:14PM -0400, Daniel Jacobowitz wrote:
> On Mon, May 15, 2006 at 02:18:21PM -0400, Bob Rossi wrote:
> > OK, here's what happens from the FE perspective though. You type ^c. The
> > FE get's the signal (which is in a different process group than GDB),
> > and passes the signal to GDB with 'kill (gdb_pid, SIGINT)'.
> 
> Jim just explained this, but it may not have been clear: that is the
> wrong way to forward the signal.  If you are running GDB on a
> pseudo-tty, you need to forward the job control signal to that TTY, not
> to the GDB process itself.
> 
> I don't really know how to do that.  Is it by setting BRKING in
> termios?  There's something about TIOCSIGNAL too.  Lots of code for
> this in emacs.

I'm totally confused. I'm certainly not an expert, but sending a signal
can only be done to a pid using kill. What other ways are there?

Bob Rossi


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