From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gdb-return-39051-listarch-gdb=sources.redhat.com@sourceware.org>
Received: (qmail 30669 invoked by alias); 17 Apr 2011 14:09:55 -0000
Received: (qmail 30661 invoked by uid 22791); 17 Apr 2011 14:09:55 -0000
X-SWARE-Spam-Status: No, hits=-1.9 required=5.0	tests=AWL,BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,RCVD_IN_DNSWL_LOW,RFC_ABUSE_POST
X-Spam-Check-By: sourceware.org
Received: from mail-gx0-f169.google.com (HELO mail-gx0-f169.google.com) (209.85.161.169)    by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Sun, 17 Apr 2011 14:09:40 +0000
Received: by gxk23 with SMTP id 23so1959400gxk.0        for <gdb@sourceware.org>; Sun, 17 Apr 2011 07:09:40 -0700 (PDT)
MIME-Version: 1.0
Received: by 10.147.23.14 with SMTP id a14mr1793608yaj.38.1303049379940; Sun, 17 Apr 2011 07:09:39 -0700 (PDT)
Received: by 10.146.167.11 with HTTP; Sun, 17 Apr 2011 07:09:39 -0700 (PDT)
In-Reply-To: <20110417133512.GA1067@host1.jankratochvil.net>
References: <BANLkTinhSQsNYgOPtpjo1sZ=XEPPZ=V9EQ@mail.gmail.com>	<20110417133512.GA1067@host1.jankratochvil.net>
Date: Sun, 17 Apr 2011 14:09:00 -0000
Message-ID: <BANLkTinv4EwR1K7_qZqXhLM6x-tKEsbLQQ@mail.gmail.com>
Subject: Re: how to redirect output of sub program in target extended-remote
From: "Amker.Cheng" <amker.cheng@gmail.com>
To: Jan Kratochvil <jan.kratochvil@redhat.com>
Cc: gdb@sourceware.org
Content-Type: text/plain; charset=ISO-8859-1
X-IsSubscribed: yes
Mailing-List: contact gdb-help@sourceware.org; run by ezmlm
Precedence: bulk
List-Id: <gdb.sourceware.org>
List-Subscribe: <mailto:gdb-subscribe@sourceware.org>
List-Archive: <http://sourceware.org/ml/gdb/>
List-Post: <mailto:gdb@sourceware.org>
List-Help: <mailto:gdb-help@sourceware.org>, <http://sourceware.org/ml/#faqs>
Sender: gdb-owner@sourceware.org
X-SW-Source: 2011-04/txt/msg00085.txt.bz2

>
> (gdb) target extended-remote | stub_program 2>/tmp/file
>
> Or I do not understand the question.

Thanks for replying. I wonder whether '2' in your command stands for
stderr as in shell command line?
when I typed following command:
(gdb) target extended-remote | stub_program 1>/tmp/file
the GDB always failed the connect with message:
Ignoring packet error, continuing...
warning: unrecognized item "timeout" in "qSupported" response

while your command ran successfully.

I did not understand the pipe in gdb command line well and did not
find any doc on it. So could you point out some doc and let me learn
it.
Thanks very much.

-- 
Best Regards.