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Re: Re: Writing file to host system's OS filesystem
- From: Alex Schuilenburg <alexs at ecoscentric dot com>
- To: Andrew Lunn <andrew at lunn dot ch>
- Cc: Samie Hassan Ghauri <samiehg at hotmail dot com>, ecos-discuss at sources dot redhat dot com
- Date: Thu, 19 Aug 2004 02:16:43 +0100
- Subject: Re: [ECOS] Re: Writing file to host system's OS filesystem
- Organization: eCosCentric Limited
- References: <BAY12-F382B9bcL9Ft600095657@hotmail.com> <20040818192036.GB28592@lunn.ch>
Andrew Lunn wrote:
On Wed, Aug 18, 2004 at 05:29:53PM +0000, Samie Hassan Ghauri wrote:
Thanks for your advise on how to access a file by including a romfs image
in my code.
I was just wondering could you suggest any idea on how can I write any file
to my host OS (i.e Win XP)?
Its not realy your host OS. Its just another OS that can run on the
same machine at some other time. You don't run eCos on top of M$ XP
unlike the synthetic target which does run as a process on Linux.
There is currently no way to do what you want.
Actually there is.
There was a project to produce semi-hosted libraries (e.g. fileio
operations were performed on the host rather than the embedded target)
which included changes+extentions to gdb, as well as target run-time
libraries. This was obviously not specific to eCos, nor was any work
done in eCos to support these gdb extensions, but if these extensions
were completed and released as part of gdb, I suspect an ecos
semi-hosted library would be feasible.
However, I don't know if this project was ever finished or released
publically. Maybe one of the project members would care to comment?
-- Alex
What you might find interesting is to make your machine run Linux and
then use the synth target. Using the system call backdoor you can then
access the native host OS Kernel, ie Linux, and so access its
filesystem. You have to be carefull when you do this though. Search
the email archive, its been discussed before.
Andrew
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