[linuxkernelnewbies] motz diary: Compile Android kernel from the source

[Peter Teoh]

http://honeypod.blogspot.com/2007/12/compile-android-kernel-from-source.html 2007年12月1日 Compile Android kernel from the source I confirmed the following procedure only on my linux host (FC8). Sorry for Windows and Mac users. 1. Get toolchains from CodeSourcery (Choose ARM GNU/Linux and IA32 GNU/Linux). 2. Get kernl source code from here. 3. Deploy toolcains and kernel source and enter in the kernel source tree. $ mkdir -p android $ cd android $ tar xjvf ../arm-2007q3-51-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2 $ tar xzvf ../linux-2.6.23-android-m3-rc20.tar.gz $ cd kernel 4. Get the config.gz from the running emulator by the following way. $ adb pull /proc/config.gz . 5. Decommpress the config.gz and rename it as .config $ gunzip config.gz $ mv config .config 6. Specify CROSS_COMPILE in the Makefile. CROSS_COMPILE=../arm-2007q3/bin/arm-none-linux-gnueabi- 7. Comment out LDFLAGS_BUILD_ID[*1] in the same Makefile. #LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ $(call ld-option, -Wl$(comma)--build-id,)) 8. Make the kernel $ make 9. Check zImage is created and the size is nearly same as the kernel-qemu in the Andorid SDK. $ ls -l arch/arm/boot/zImage -rwxrwxr-x 1 motz motz 1234712 2007-12-01 18:06 arch/arm/boot/zImage $ ls -l $SDK/tools/lib/images/kernel-qemu -rwxrwxr-x 1 motz motz 1245836 2007-11-12 5:59 ...sdk/tools/lib/images/kernel-qemu 10. Run emulator with the created kernel. $ emulator -kernel arch/arm/boot/zImage [*1]: The LDFLAGS_BUILD_ID enables --build-id option of ld if available. The --build-id option is relatively new. The current emulator does not seem to support the kernel linked with this option. See here if you are interested in the detail of this option. 投稿者 motz 時刻: 19:08 ラベル: Android, compile, kernel 5 コメント: Captain_Fleming さんのコメント... Pingback from codercpf.be: Compile Android kernel from the source As people might know, there used to be a rumour about google working on a “gphone”... Read more 2007/12/02 4:28 AdeTaylor さんのコメント... Thanks Motz, that saved some research! 2007/12/25 0:55 motz さんのコメント... The selection of toolchains is mismatched between the text and the trace of execution. I corrected the text from ARM EABI to ARM GNU/Linux. 2008/01/23 12:47 匿名 さんのコメント... You can also just use the provided defconfig: make goldfish_defconfig Instead of grabbing the config from the running kernel. It should give you identical results (it's how we build the release kernel). 2008/04/09 16:58 motz さんのコメント... Yes, I confirmed your way. We can do 'make goldfish_defconfig' to get .config, instead of step 4, 5 above. Thank you for pointing out. 2008/04/17 17:51 コメントを投稿 この投稿へのリンク   Building Mono for Android <Edit>I have figured out how to get Mono building in the Android build environment fairly easily. Click here for the updated instructions.</Edit>. As I mentioned in previous posts, I managed to get Mono compiled and running under Debian ... 投稿者 Koush 時刻: 2009/01/06 18:27   Setting up a Native Build Environment for Android My initial attempts at cross compiling Mono were on Scratchbox. But Scratchbox was having technical difficulties building Mono from the trunk (not sure why), did not have a working apt-get, the Mono binary would not actually run when it ... 投稿者 Koush 時刻: 2009/01/01 12:09   w3m build with CodeSourcery tool chain Just another log of my try and error while building w3m for Angstrom Zaurus. I found this post sometime ago and very interrested in CodeSourcery's tool chain. motz diary: Compile Android kernel from the source ... 投稿者 安藤恐竜 時刻: 2008/01/16 20:08   gotcha! i’ve debugged why i was unable to display the memory relating to android binder transactions coming from the kernel to user-side. it turns out that binder is marking the pages as vm_io, and the kernel code behind strace’s umoven ... 投稿者 Adrian Taylor 時刻: 2007/12/28 21:28   number of interesting articles