Beagleboard Kernel Module Cross Compiling
Hi!
I am trying to cross-compile a kernel module for a few days now. This module is just a hello world module to get started. The module should be cross-compiled for Beagleboard XM Rev C with an ARM processor. I installed the Angstrom toolchain by doing this: git clone git://git.angstrom-distribution.org/setup-scripts After that i build the kernel and an image: MACHINE=beagleboard ./oebb.sh config beagleboard MACHINE=beagleboard ./oebb.sh update MACHINE=beagleboard ./oebb.sh bitbake virtual/kernel MACHINE=beagleboard ./oebb.sh bitbake systemd-gnome-image Then i use just a small Makefile for the Kernel Module: obj-m := mod1.o And this build script: #!/bin/bash export SYSROOTS=${HOME}/source/toolchain/setup-scripts/build/tmp-angstrom_2010_x-eglibc/sysroots export PATH=${PATH}:${SYSROOTS}/x86_64-linux/usr/bin/armv7a-angstrom-linux-gnueabi export ARCH=arm export CROSS_COMPILE=arm-angstrom-linux-gnueabi- export KERNELDIR=${SYSROOTS}/beagleboard/kernel make -C ${KERNELDIR} M=$(pwd) modules The Problem now: tom@***:~/source/modtest$ ./run.sh make: Entering directory `/home/tom/source/toolchain/setup-scripts/build/tmp-angstrom_2010_x-eglibc/sysroots/beagleboard/kernel' CC [M] /home/tom/source/modtest/mod1.o /bin/sh: scripts/basic/fixdep: not found make[1]: *** [/home/tom/source/modtest/mod1.o] Error 127 make: *** [_module_/home/tom/source/modtest] Error 2 make: Leaving directory `/home/tom/source/toolchain/setup-scripts/build/tmp-angstrom_2010_x-eglibc/sysroots/beagleboard/kernel' I think fixdep is used to find out the dependencies for something, what do i have to do, to get fixdep.c compiled (source and Makefile are present in this folder). And which platform do i have to compile it to: ARM or x86 ? I think x86... but how can i do that? --> I am using a Ubuntu Server Edition to do all the cross compiling. Any suggestions are welcome! Thanks, Tom |
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