g2root-kmod

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Welcome to the g2root arm foreign/hostile kernel exploration toolkit.

syntax: CROSS_COMPILE=/opt/arm-2008q3/bin/arm-none-eabi- ARCH=arm make KDIR=[KERNEL SOURCE FROM WIKI] [clean|DOSTUFF=0|DOSTUFF=1]

Building the toolkit

You'll need an ARM toolchain. The following assumes you're using the
CodeSourcery tools installed to /opt/arm-2008q3; otherwise, change the
CROSS_COMPILE variable.

$ git clone git://codeaurora.org/kernel/experimental.git kernel-source
$ git clone git://gist.github.com/619505.git module-source
$ cd kernel-source && git checkout origin/aosp/android-msm-2.6.32-7x30-wip
& # The follow commands may need to be run with CROSS_COMPILE=/opt/arm-2008q3/b $ ARCH=arm make surf7x30_defconfig
$ ARCH=arm make oldconfig

At this point you'll need to edit .config to match below:

CONFIG_LOCALVERSION="-g814e0a1 "
CONFIG_LOCALVERSION_AUTO=n

Modify Makefile so it starts with this:

VERSION = 2
PATCHLEVEL = 6 SUBLEVEL = 32
EXTRAVERSION = .17

Continue as follows:

$ ARCH=arm make prepare
$ ARCH=arm make scripts
$ cd ..

taken from: http://forum.xda-developers.com/wiki/index.php?title=HTC_Vision#Building_a_basic_kernel_module (thanks FatTire and dpw13_)

then

$ # The following line assumes the CodeSourcery cross-compiler

$ CROSS_COMPILE=/opt/arm-2008q3/bin/arm-none-eabi- ARCH=arm make KDIR=[KERNEL SOURCE FROM WIKI] DOSTUFF=0

Copy to a place on your G2 (or other device).

On the G2 (in a root shell):

g2# dmesg -c g2# rmmod module.ko g2# insmod module.ko g2# dmesg

Test and make sure it doesn't blow up and the printed (in dmesg) addresses look sane (not 0 or fffx whatever) Then proceed to build the working version:

$ CROSS_COMPILE=/opt/arm-2008q3/bin/arm-none-eabi- ARCH=arm make KDIR=[KERNEL SOURCE FROM WIKI] clean

$ CROSS_COMPILE=/opt/arm-2008q3/bin/arm-none-eabi- ARCH=arm make KDIR=[KERNEL SOURCE FROM WIKI] DOSTUFF=1

Now follow the same instructions to test.