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Re: [PATCH 1/3] New option --cygwin-tty.
- From: Corinna Vinschen <vinschen at redhat dot com>
- To: gdb-patches at sourceware dot org
- Date: Thu, 25 Jul 2013 10:18:20 +0200
- Subject: Re: [PATCH 1/3] New option --cygwin-tty.
- References: <1374728963-25187-1-git-send-email-yao at codesourcery dot com> <1374728963-25187-2-git-send-email-yao at codesourcery dot com> <000901ce8909$dd069470$9713bd50$ at muller@ics-cnrs.unistra.fr> <51F0D9D2 dot 1090804 at codesourcery dot com>
- Reply-to: gdb-patches at sourceware dot org
On Jul 25 15:54, Yao Qi wrote:
> On 07/25/2013 03:37 PM, Pierre Muller wrote:
> > Instead of adding a new command line option,
> >we might change this into a new command
> >call
> > set windows-os-tty on/off
> >
> >In the testsuite, this could be
> >automated by adding "-ex {set windows-os-tty on}"
> >to INTERNAL_GDBFLAGS.
> > This is what I do to run the testsuite on
> >msys for the "set interactive-mode on"
> >command that I added a while ago to resolve a similar problem.
> >
> >This would avoid adding a target specific command line option
> >and allow to move most of the code to mingw-hdep.c source
> >where it belongs as it really is mingw specific, no?
>
> Yeah, I agree, but I am worried that stdio handlers (such as stdout)
> should be set before any writes to them, so we should set the flag
> (cygwin_tty) at the early stage of GDB start up (before command 'set
> windows-os-tty on' is processed). If it is not a problem, I am
> fine.
You can use the _setmode() call at any time to switch text/binary mode
on the descriptors.
> I am looking at Corinna's example to see how to detect GDB is
> running in Cygwin's TTY. If it works, probably we can get rid of
> this new GDB option completely.
It has been tested under Mingw-w64 and VC++. If you're using Mingw.Org,
it probably needs some tweaking.
Corinna
--
Corinna Vinschen
Cygwin Maintainer
Red Hat