From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gdb-patches-return-126155-listarch-gdb-patches=sources.redhat.com@sourceware.org>
Received: (qmail 103011 invoked by alias); 17 Sep 2015 05:10:40 -0000
Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm
Precedence: bulk
List-Id: <gdb-patches.sourceware.org>
List-Subscribe: <mailto:gdb-patches-subscribe@sourceware.org>
List-Archive: <http://sourceware.org/ml/gdb-patches/>
List-Post: <mailto:gdb-patches@sourceware.org>
List-Help: <mailto:gdb-patches-help@sourceware.org>, <http://sourceware.org/ml/#faqs>
Sender: gdb-patches-owner@sourceware.org
Received: (qmail 103001 invoked by uid 89); 17 Sep 2015 05:10:39 -0000
Authentication-Results: sourceware.org; auth=none
X-Virus-Found: No
X-Spam-SWARE-Status: No, score=-1.0 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_NONE,SPF_SOFTFAIL autolearn=no version=3.3.2
X-HELO: mtaout24.012.net.il
Received: from mtaout24.012.net.il (HELO mtaout24.012.net.il) (80.179.55.180) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Thu, 17 Sep 2015 05:10:38 +0000
Received: from conversion-daemon.mtaout24.012.net.il by mtaout24.012.net.il (HyperSendmail v2007.08) id <0NUT000001XGIJ00@mtaout24.012.net.il> for gdb-patches@sourceware.org; Thu, 17 Sep 2015 08:03:09 +0300 (IDT)
Received: from HOME-C4E4A596F7 ([84.94.185.246]) by mtaout24.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0NUT00OSR2194V10@mtaout24.012.net.il>; Thu, 17 Sep 2015 08:03:09 +0300 (IDT)
Date: Thu, 17 Sep 2015 05:10:00 -0000
From: Eli Zaretskii <eliz@gnu.org>
Subject: Re: [patch, testsuite] check for UTF-32 target wide charset support in gdb.base/wchar.exp
In-reply-to: <m3k2rpsm4p.fsf@sspiff.org>
To: Doug Evans <xdje42@gmail.com>
Cc: sandra@codesourcery.com, gdb-patches@sourceware.org
Reply-to: Eli Zaretskii <eliz@gnu.org>
Message-id: <834mit7hrm.fsf@gnu.org>
References: <55FA325D.1020207@codesourcery.com> <m3k2rpsm4p.fsf@sspiff.org>
X-IsSubscribed: yes
X-SW-Source: 2015-09/txt/msg00395.txt.bz2

> From: Doug Evans <xdje42@gmail.com>
> Cc: gdb-patches <gdb-patches@sourceware.org>
> Date: Wed, 16 Sep 2015 21:30:46 -0700
> 
> #undef GDB_DEFAULT_HOST_CHARSET
> #define GDB_DEFAULT_HOST_CHARSET "ISO-8859-1"
> #define GDB_DEFAULT_TARGET_CHARSET "ISO-8859-1"
> #define GDB_DEFAULT_TARGET_WIDE_CHARSET "ISO-8859-1" <<<<
> 
> How reasonable is it to enhance the PHONY_ICONV support so that
> it handles this better?

You mean, have functions like strlen and strcat handle 32-bit wchar_t
strings?  Not reasonable.

> I see it already tries to provide some minimal functionality:
> 
> static iconv_t
> phony_iconv_open (const char *to, const char *from)
> {
>   /* We allow conversions from UTF-32BE, wchar_t, and the host charset.
>      We allow conversions to wchar_t and the host charset.  */
>   if (strcmp (from, "UTF-32BE") && strcmp (from, "wchar_t")
>       && strcmp (from, GDB_DEFAULT_HOST_CHARSET))
>     return -1;
>   if (strcmp (to, "wchar_t") && strcmp (to, GDB_DEFAULT_HOST_CHARSET))
>     return -1;
> 
>   /* Return 1 if we are converting from UTF-32BE, 0 otherwise.  This is
>      used as a flag in calls to iconv.  */
>   return !strcmp (from, "UTF-32BE");
> }
> 
> I don't know, off hand, why big endian is supported and not little endian.

Supported by whom?