Sending signal to inferior

[Sanborn, Ed]

 Please delete me from this list.

-----Original Message-----
From: gdb-owner@sourceware.org [mailto:gdb-owner@sourceware.org] On
Behalf Of Bob Rossi
Sent: Friday, December 30, 2005 5:58 PM
To: Carlos Eduardo Rodrigues de Almeida; gdb@sources.redhat.com
Subject: Re: Sending signal to inferior

On Fri, Dec 30, 2005 at 11:48:02AM -0500, Daniel Jacobowitz wrote:
> On Fri, Dec 30, 2005 at 11:43:00AM -0500, Bob Rossi wrote:
> > On Fri, Dec 30, 2005 at 04:57:38AM +0000, Carlos Eduardo Rodrigues
de Almeida wrote:
> > > Thank you.. I'm trying to solve this for days..
> > 
> > Wow, that took me a long time to figure out, and I wrote libtgdb.
> > 
> > It's the tty command that is allowing libtgdb to interrupt GDB when 
> > the inferior is running. Apparently, if you don't move the 
> > inferior's terminal via the GDB tty command, then you can't 
> > interrupt the inferior when it's running.
> > 
> > Basically, I'm assuming that the SIGINT to GDB is ignored if the 
> > inferior has control of the terminal. However, if you put the 
> > inferior on a different terminal, then GDB must handle the SIGINT. 
> > This explanation is just a guess though.
> 
> It shouldn't be.  Check whether GDB is reaching handle_sigint() and 
> whether it is going through the event loop properly?

This is a tough one. For some reason, if I start debugging GDB, it
doesn't reach the handle_sigint line. However, with fprintf there, I'm
seeing output. Could I be doing something wrong or is this expected?

I configured && compiled like this:
  cvs -d ':ext:bobbybrasko@sources.redhat.com:/cvs/src' co gdb
  CFLAGS=-g ../src/configure
  make

I was wondering if any of the -W compile options stop me from debuging
GDB in this case.

Thanks,
Bob Rossi