Pdaxrom: On Board Development
From OESF
The native sdk provides an easy way to start developing (c/c++) on board. It contains gcc, the header files and the commmon utilities (make..) used to compile applications.
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Installing the sdk
Just install prce, gcc and gcc-headers from the feed
The following is old
Install pcre.
Because the version of grep from the sdk needs it, and it will comes first in your path, before the busybox version.
Download the zgcc-XXX.img
For rc12: zgcc-3.4.4.img
Mount the image file
One way to do this is to put the zgcc-XXX.img in /home/root and reboot.
You can also put the file somewhere, create a link to this file in /home/root and reboot.
For instance if you put the file in /mnt/card you need to type:
ln -s /mnt/card/zggc-3.4.4.img /home/root
You can also mount the image by hand, but you have to make sure that the image is mounted at the right place.
Otherwise gcc will not work correctly.
You can find the path by doing the following in a terminal
# grep zgcc /etc/rc.d/rc.sysinit
if [ -f /home/root/zgcc-3.4.4.img ]; then
mount -o loop /home/root/zgcc-3.4.4.img /opt/native/arm/3.4.4-xscale-softvfp
#
In my case the right path is /opt/native/arm/3.4.4-xscale-softvfp. To mount the image you first need to create the directory if it does not exist and mount the image. For instance, assuming the image is in /mnt/card:
# mkdir -p /opt/native/arm/3.4.4-xscale-softvfp # mount -o loop /mnt/card/zggc-3.4.4.img /opt/native/arm/3.4.4-xscale-softvfp
That's it
Compiling
If you want to see gcc in action try:
# echo -e '#include "stdio.h"\n int main(){ printf("Hello World\\n"); }' > hello.c
# gcc -o hello hello.c
# ./hello
Hello World
#
Common Problem
if you get the following error:
gcc: Internal error: Terminated (program cc1) Please submit a full bug report. See <URL:http://gcc.gnu.org/bugs.html> for instructions
It's most probably because you have run out of memory. Compiling requires ram, especially c++ compilation. You can first try to compile without X running, if this is not enough then you have to create a swap.
Alternative: Using GCC from the Feeds
Since at least PdaXrom-1.1.0beta3, a complete and fully working native toolchain has been available in the main feed. To install everything you need, just type this command:
ipkg install gcc gcc-headers binutils make automake
...and you should have a working toolchain in short order. It's best to install this to your root directory - gcc can act funny if it's symlinked all over the place.
After installing, usage is just like on a full desktop; no image mounting required. Just ./configure && make && make install whatever you like!
