DSM-G600, DNS-3xx and NSA-220 Hack Forum

Hi,

I just cross compiled Joe's Own Editor (joe) and I thought I would share the "how to" here in case it could help someone else. You could use this procedure to build joe or you could adapt it to build other apps.

Step 1: Build the cross compiler

Setup the cross compiler environment and build the cross compiler tool chain using the instructions in the wiki. Follow them closely. When you get to the step "fix all broken links", see Fonz's easy instructions for fixing them.

Step 2: Get the joe Source

Normally, you get the source code from joe's website but the Download Source link just seems to return a file with 0 bytes. So, I got the joe source code from Debian instead. That should give you a file called joe_3.5.orig.tar.gz. There is a patch available from Debian but I didn't bother applying it (I'll leave that as an exercise to the reader).

Put the source tarball in GPL/zips, just like the other source tarballs you got from D-Link.

Step 3: Extract the source

From the GPL folder, extract the source from the tarball:

tar xzf zips/joe_3.5.orig.tar.gz

Step 4: Create build script

Using the other build scripts in the GPL folder as a sample, I created the following simple build script called build_joe and put it in the GPL folder just like the other build scripts:

#!/bin/bash
#
source setpath
export CC=arm-linux-gcc
export GCC=arm-linux-gcc

cd joe-3.5
./configure --host=arm-linux-uclibc
make clean
make

Don't forget the "--host=arm-linux-uclibc" after ./configure. Without that, you'll get an error like "configure: error: cannot run C compiled programs.
If you meant to cross compile, use `--host'".

Step 5: Build Joe

From GPL folder run ./build_joe

It will take a few minutes. If you get no errors, you should get the binary GPL/joe-3.5/joe

For fun, you can see that it has been cross compiled for the DNS-323 by running this command against the joe binary : file joe. The output should look like this:

joe: ELF 32-bit LSB executable, ARM, version 1 (ARM), dynamically linked (uses shared libs), not stripped

The key is the "ARM". If you did not cross compile, it would say something like "Intel 80386" instead of "ARM" (assuming you are running this on a PC).

Step 6: Copy File to DNS and Run It

This part is easy. Just use samba share or FTP to upload the joe binary to your DNS. Then run it with ./joe or joe (if folder is on your path).

Enjoy! I hope this helps.