From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gdb-return-33146-listarch-gdb=sources.redhat.com@sourceware.org>
Received: (qmail 7104 invoked by alias); 13 Oct 2008 18:48:22 -0000
Received: (qmail 7096 invoked by uid 22791); 13 Oct 2008 18:48:21 -0000
X-Spam-Check-By: sourceware.org
Received: from mx2.redhat.com (HELO mx2.redhat.com) (66.187.237.31)     by sourceware.org (qpsmtpd/0.31) with ESMTP; Mon, 13 Oct 2008 18:47:46 +0000
Received: from int-mx2.corp.redhat.com (int-mx2.corp.redhat.com [172.16.27.26]) 	by mx2.redhat.com (8.13.8/8.13.8) with ESMTP id m9DIlYBF022966; 	Mon, 13 Oct 2008 14:47:34 -0400
Received: from ns3.rdu.redhat.com (ns3.rdu.redhat.com [10.11.255.199]) 	by int-mx2.corp.redhat.com (8.13.1/8.13.1) with ESMTP id m9DIlWRo018560; 	Mon, 13 Oct 2008 14:47:32 -0400
Received: from opsy.redhat.com (vpn-13-182.rdu.redhat.com [10.11.13.182]) 	by ns3.rdu.redhat.com (8.13.8/8.13.8) with ESMTP id m9DIlWDp003179; 	Mon, 13 Oct 2008 14:47:32 -0400
Received: by opsy.redhat.com (Postfix, from userid 500) 	id 51379378107; Mon, 13 Oct 2008 11:26:24 -0600 (MDT)
To: "Yifan Wang" <heavenstar@gmail.com>
Cc: gdb@sourceware.org
Subject: Re: gdb support for wide char
References: <fdbd509e0810010328w5dc56929g64c2e4ae1ca69bd5@mail.gmail.com> 	<m3hc7wl4l5.fsf@fleche.redhat.com> 	<fdbd509e0810130155o421c4f7bvbf5eb2c45c8851c8@mail.gmail.com>
From: Tom Tromey <tromey@redhat.com>
Reply-To: Tom Tromey <tromey@redhat.com>
X-Attribution:  Tom
Date: Mon, 13 Oct 2008 18:48:00 -0000
In-Reply-To: <fdbd509e0810130155o421c4f7bvbf5eb2c45c8851c8@mail.gmail.com> (Yifan Wang's message of "Mon\, 13 Oct 2008 10\:55\:52 +0200")
Message-ID: <m3bpxoo18f.fsf@fleche.redhat.com>
User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.1 (gnu/linux)
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
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: 2008-10/txt/msg00057.txt.bz2

>>>>> "Yifan" == Yifan Wang <heavenstar@gmail.com> writes:

Yifan> and now i am working on utf8 which is not fixed length character.
Yifan> The solution rely on the glibc functions, eg.mbstowcs(), iconv(), to
Yifan> support wide character.

Yifan> I dont know whether this solution is good enough, because it
Yifan> does not support other programming language and it rely on the
Yifan> glibc functions.

Is it calling these functions in the inferior?

If so, then I think it would be preferable to use iconv in gdb, and
not call any inferior functions.  This approach has several
advantages: it works with core files, it works with other languages,
and (due to the existence of libiconv) it is more portable.

If not, I think I am not understanding something.

Tom