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Date: Thu, 19 Jun 2003 10:25:31 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: gdb attach/detach kills the target process
Message-ID: <20030619082531.GL30116@cygbert.vinschen.de>
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References: <u65n3hu5s DOT fsf AT gnu DOT org> <Pine DOT GSO DOT 4 DOT 44 DOT 0306181927330 DOT 22307-100000 AT slinky DOT cs DOT nyu DOT edu>
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On Wed, Jun 18, 2003 at 07:33:38PM -0400, Igor Pechtchanski wrote:
> On 18 Jun 2003, Sam Steingold wrote:
> 
> > run a process in a cygwin window, find out its PID, run gdb in another
> > window, attach to that process, then detach from it.
> > the target process stops responding as soon as it is attached to.
> > detaching changes nothing.
> > only after I exit gdb, I get the original window responding, with the
> > terminal in raw start (need to do "reset" in bash) and the process that
> > gdb attached to dead.
> >
> > I tested this on python and clisp.
> 
> That's the way Windows debugging works -- once you attach to a process,
> detaching from it kills the process.  No way around it.

...up to Windows 2000.  Since XP, Windows has a new function call to
detach from a process and let it running.  gdb is using this call if
it's availbale on the system.

Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Developer                                mailto:cygwin AT cygwin DOT com
Red Hat, Inc.

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