[microblaze-uclinux] Doing an out-of-tree application and compiling under Windows

[John Prestwich <johnprestwich@xxxxxxxxx>]

I am trying to figure out if it is possible to compile
and out-of-tree application (i.e., an executible that
is not part of the main distribution tree)using the
Xilinx tools under Windows.  Several emails that I
have seen in the archive list lead me to believe that
it is possible but it is obvious from my attempts to
compile one that I am still missing some of the
picture.

I have seen the emails that say that you need to
obtain a copy of mb-elf2flt that works under Windows
and that you need a script called mb-ld which replaces
the program mb-ld which is then renamed mb-ld.real. 
After downloading the elf2flt code from
cvs.uclinux.org and trying to compile it, without much
luck, I looked through my EDK directories and found
that there is a mb-elf2flt, a mb-ld script, and a
mb-ld.real already there in the 7.1 version of the EDK
tools.  I then tried to write a "hello world"
appplication and compile it giving the mb-gcc compiler
either a -Wl and -elf2flt option but never was able to
get anything that looked like it was a flat binary to
me.

In future reading I have seen some discussion about
needing to tell the compiler (linker?) to use certain
libraries from the uCLinux distribution also.

My questions are:

1.  Am I on the right track using the mb-elf2flt and
mb-ld script that come with the 7.1 versions of EDK or
do I really need to find a way to compile the elf2flt
from cvs.uclinux.org?

2.  When I have a valid mb-elf2flt how do I get the
mb-gcc compiler to use it?  Or do I have to use the
mb-elf2flt tool separately?  Either way how is it
done?

3.  If I do need to use libraries for the uCLinux
dist. which ones do I need and how do I make mb-gcc
use them instead of the Xilinx ones?

Thanks for your help!  This is a very nice project and
it is obvious that a lot of work has gone into it.  I
look forward to learning more about it.

John Prestwich


		
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