Q: support for LE (Linear Executable) files?

Q: support for LE (Linear Executable) files?

[Heiko Nardmann]

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Hi!

Last weekend I have tried to 'objdump' a Windows driver file, i.e. a LE 
executable. But objdump has told me that the file format has not been 
recognized. I had built binutils with '--enable-targets=all' but no luck ...

Is LE not supported?

- -- 
Heiko Nardmann (Dipl.-Ing. Technische Informatik)
secunet Security Networks AG - Sicherheit in Netzwerken (www.secunet.de),
Weidenauer Str. 223-225, D-57076 Siegen
Tel. : +49 271 48950-13, Fax  : +49 271 48950-50
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Re: Q: support for LE (Linear Executable) files?

[Nick Clifton]

Hi Heiko,

> Last weekend I have tried to 'objdump' a Windows driver file, i.e. a LE 
> executable. But objdump has told me that the file format has not been 
> recognized. I had built binutils with '--enable-targets=all' but no luck ...
> 
> Is LE not supported?

Sorry no I do not believe that it is supported.

Cheers
   Nick

Re: Q: support for LE (Linear Executable) files?

[Heiko Nardmann]

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On Freitag 21 Januar 2005 11:06, Nick Clifton wrote:
> Hi Heiko,
>
> > Last weekend I have tried to 'objdump' a Windows driver file, i.e. a LE
> > executable. But objdump has told me that the file format has not been
> > recognized. I had built binutils with '--enable-targets=all' but no luck
> > ...
> >
> > Is LE not supported?
>
> Sorry no I do not believe that it is supported.
>

Since the format is documented I would like to start to add the recognition. 
Which part of binutils do I have to start with?

I have located some interesting links about it which should help me with the 
details if I get the start into binutils:

http://www.tenberry.com/dos4g/faq/format.html

http://faydoc.tripod.com/formats/exe-LE.htm

http://win32assembly.online.fr/vxd-tut3.html

http://www.tbcnet.com/~clive/vcomwinp.html

http://www.itee.uq.edu.au/~csmweb/decompilation/exedesc.html

> Cheers
>    Nick

- -- 
Heiko Nardmann (Dipl.-Ing. Technische Informatik)
secunet Security Networks AG - Sicherheit in Netzwerken (www.secunet.de),
Weidenauer Str. 223-225, D-57076 Siegen
Tel. : +49 271 48950-13, Fax  : +49 271 48950-50
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Re: Q: support for LE (Linear Executable) files?

[Nick Clifton]

Hi Heiko,

> Since the format is documented I would like to start to add the recognition. 
> Which part of binutils do I have to start with?

The bfd/ directory is where you should begin.  You will need to create a 
new file in here along the lines of some of the file-format specific 
files that already exist, eg pef.c, vms.c, oasys.c

Of particular interest will be the LE_object_p() function whose purpose 
is to recognise when a particular file is in LE format.

You may want to create an entirely new configure target for files of 
this format, or you may to add support for this format to an already 
existing target (eg mingw32, or cygwin).  Either way you will need to 
modify the bfd/config.bfd and ld/configure.tgt files, and probably the 
bfd/archures.c and bfd/reloc.c files.

Feel free to ask questions on this list if you have problems.

Cheers
   Nick