X-Authentication-Warning: delorie.com: mail set sender to djgpp-bounces using -f
From: =?ISO-8859-1?Q?Hans-Bernhard_Br=F6ker?= <HBBroeker AT t-online DOT de>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: DJGPP cross compilers for open-source hardware
Date: Wed, 04 Sep 2013 01:33:05 +0200
Lines: 16
Message-ID: <b8n9tgFgm4U1@mid.dfncis.de>
References: <kvqdrb$1uei$1 AT adenine DOT netfront DOT net> <op.w2n1q4t80e5s1z@-> <l01mk0$20ca$1 AT adenine DOT netfront DOT net> <op.w2uvsdk50e5s1z@->
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
X-Trace: news.dfncis.de qSJaUFoWBibdLdND8xbSqgpknxSz/6tQXHhIGiZbWX3g+zHJDr51mqjJzN
Cancel-Lock: sha1:Kgs+6xwMeDSaU/zUTjI3IZp1CCs=
User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:17.0) Gecko/20130620 Thunderbird/17.0.7
In-Reply-To: <op.w2uvsdk50e5s1z@->
Bytes: 1863
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com
Errors-To: nobody AT delorie DOT com
X-Mailing-List: djgpp AT delorie DOT com
X-Unsubscribes-To: listserv AT delorie DOT com
Precedence: bulk

On 04.09.2013 00:08, Rod Pemberton wrote:
> It seems DOSBOX is forcing the MOUNTed filesystem to be FAT16 with
> 8.3 names, even if it's a FAT32 filesystem with LFNs and SFNs mounted
> as VFAT in Linux, and even if it's an ext4 filesystem in Linux with
> long file names.

Actually, the very fact that it mounts (part of) an existing 
_filesystem_, instead of a raw block device, is probably enough to make 
it impossible for any LFN emulator to work on top of that.  Because that 
means that the whole directory structure is a simulated _fake_ that 
doesn't actually exist.  There's just no way an LFN tool can manipulate 
the entries of such a fake directory correctly without cooperation of 
the emulator that's doing the faking.

In short: if you're mounting filesystems into a PC emulator, LFN support 
is either built directly into that emulator, or it's impossible.