 |
몇몇 ERTOS 프로젝트는 HTD dream 폰을 사용하고 있습니다. 이 페이지는 그 폰을 사용하는 플랫폼에
OKL4를 포팅하는 것에 대해 설명하고 있습니다.
About the code
This is OKL 3.0, the latest public version from Open Kernel Labs. It has two new platforms added: goldfish and trout.
Both of these are Google's code names for Android platforms: goldfish
is the simulated platform that runs inside the Android emulator (qemu),
and Trout is the HTC dream, also known as the G1.
Getting the source
Download the port here:
okl4-android-3.0.tar.bz2 (10M, updated March 15 2009)
Building OKL4
Ensure you have a proper OKL4 toolchain for ARM (consult the OKL
Wiki linked above for details), then test the system using a line like:
tools/build.py machine=trout project=examples example=hello PYFREEZE=False
... to build for real hardware, or
tools/build.py machine=androidsim project=examples example=hello PYFREEZE=False
... to build for the emulator.
Running the code on the HTC Dream
You can boot the image using fastboot from the phone's
engineering boot loader (of course, you will need a Fastboot-enabled
boot loader for this, i.e. an ADP1 phone). Unfortunately the stock
bootloader sets the entry point for the kernel to be 32K above the
start of system memory. This is standard for Linux but not what L4 is
expecting. You must create a custom version of Fastboot which requests
the image be loaded at the start of memory. Apply this patch inside your mydroid/system/core/fastboot directory, and then rebuild fastboot by typing, from the mydroid directory: make out/host/your host platform name/bin/fastboot. The new fastboot supports an extra option, -l4. Boot the kernel from the engineering bootloader:
fastboot -l4 -p dream boot build/images/image.boot.bin
Running the code on the Android emulator
The emulator must also be patched to load images at the start of RAM. Apply this patch (thanks to Benno) to your emulator source code, or use our mirror of the pre-patched emulator, here: android-emulator-ok.tar.gz (5M).
Once the emulator is patched, you may load the image with a commandline like this:
emulator -os-type okl4 -console -kernel build/images/image.boot.bin
Obligatory picture
Contact
For questions about the port please send email to
Nicholas FitzRoy-Dale.
|
※ 회원등급 레벨 0 이상 읽기가 가능한 게시판입니다.
16
| 
OKL4(가상화) for the HTC dream
Kandroid History
