Sorry for the noise everyone. I started to compose the last mail thinking "set inferior-tty" would solve my problem. Then on further testing, I found it didn't.
I'm still up for fixing gdb to do the job properly - or can someone on this list tell me why I'd be wasting my time? Cheers ... Duncan. On Sat, Apr 05, 2014 at 03:15:14PM +1100, Duncan Roe wrote: > On Fri, Apr 04, 2014 at 10:51:24PM -0400, Eliot Moss wrote: > > On 4/4/2014 10:29 PM, Duncan Roe wrote: > > >I just found that gdb's "run" command doesn't action redirection (e.g. run > > ></dev/pty2 >/dev/pty2 2>&1, where the shell on /dev/pty2 is doing a long > > >sleep). > > >Instead, the invoked program gets the redirections as command line > > >arguments. > > > > > >Looking through the archives, I found > > >https://sourceware.org/ml/cygwin/1999-04/msg00355.html documenting this > > >behaviour. Chris Faylor commented at the time that fixing it was more > > >trouble > > >than it appeared. > > > > > >That was 15 years ago - has anything changed since? Anyone up for this or > > >should > > >I have a go? I *could* simply make my target do the redirection itself, > > >but that > > >doesn't help anyone else. OTOH if changing gdb really *is* that hard, > > >maybe I > > >should just change my program anyway. > > > > > >Any advice welcomed, > > > > I think this is the intended design (see: > > https://sourceware.org/gdb/current/onlinedocs/gdb/Input_002fOutput.html#Input_002fOutput > > ). If you want *gdb's* input and output redirected, I would think you want > > to invoke > > gdb with I/O redirection on the command line, as in: > > > > gdb foo < infile > outfile > > > > Regards -- Eliot Moss > > > Thanks for replying. > > Sorry but your suggested command line doesn't help: I need gdb command i/o in > one screen and program i/o in another. > > The set inferior-tty command documented in the link you posted *very nearly* > gave me what I was after. Having updated my startup script to use it, I now > find > that I can't use Control-C to interrupt the session: it's ignored in the gdb > window and causes catastrophic gdb failure in the application window (as well > as > waking the shell from sleep). It's better than nothing I guess. > > So, I'm back to needing i/o redirection in the run command (as also documented > in your link). It works in Linux. > > Cheers ... Duncan. -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
