====== android overview ======
  *[[http://sites.google.com/site/io/anatomy--physiology-of-an-android|Anatomy & Physiology of an Android]]
====== make build env ======
===== download platform source =====
플렛폼 다운로드
<code bash>
$ mkdir ~/android_workspace/platform
$ cd ~/android_workspace/platform
$ repo init -u git://android.git.kernel.org/platform/manifest.git
$ repo sync
</code>
platform source tree
<code bash>
$ ls -a
.   .repo     bionic    build   development  frameworks  packages  system
..  Makefile  bootable  dalvik  external     hardware    prebuilt  vendor

</code>
===== tool-chain =====
<code bash>
$ cd ... platform/prebuilt/linux-x86/toolchain/arm-eabi-4.4.0/bin/
$ ls
arm-eabi-addr2line  arm-eabi-g++        arm-eabi-gdbtui   arm-eabi-ranlib
arm-eabi-ar         arm-eabi-gcc        arm-eabi-gprof    arm-eabi-readelf
arm-eabi-as         arm-eabi-gcc-4.4.0  arm-eabi-ld       arm-eabi-run
arm-eabi-c++        arm-eabi-gccbug     arm-eabi-nm       arm-eabi-size
arm-eabi-c++filt    arm-eabi-gcov       arm-eabi-objcopy  arm-eabi-strings
arm-eabi-cpp        arm-eabi-gdb        arm-eabi-objdump  arm-eabi-strip
$ ./arm-eabi-gcc -v
Using built-in specs.
Target: arm-eabi
Configured with: /home/jingyu/projects/gcc/android-toolchain/gcc-4.4.0/configure 
--prefix=/usr/local 
--target=arm-eabi 
--host=i686-pc-linux-gnu 
--enable-languages=c,c++ 
--disable-libssp --enable-threads --disable-nls --disable-libmudflap --disable-libgomp 
--disable-libstdc__-v3 --disable-sjlj-exceptions --disable-shared 
--with-float=soft --with-fpu=vfp 
--with-arch=armv5te 
--with-gcc-version=4.4.0 
--with-binutils-version=2.19
--with-gmp-version=4.2.4 
--with-mpfr-version=2.4.1 
--with-gdb-version=6.6 
</code>
기타 tool-chain
  *[[http://wiki.openmoko.org/wiki/Toolchain|toolchain from openmoko]] armv4t
  *[[http://www.codesourcery.com/sgpp/lite/arm/portal/subscription?@template=lite|Download Sourcery G++ Lite Edition for ARM]]

커널 다운로드
<code bash>
$ cd ~/android_workspace
$ git clone git://android.git.kernel.org/kernel/common.git kernel 
</code>




====== build =====
platfrom build
<code bash>

</code>
kernel build
<code bash>

$ make uImage ARCH=arm CROSS_COMPILE=../prebuilt/linux-x86/toolchain/arm-eabi-4.2.1/bin/arm-eabi-
</code>

====== porting ======
===== u-boot =====
  */board/board-name
===== kernel =====