编译Android donut
编译 Android 代码
Type the following command to install it:
$ tar -xvzf Android_PlatformRel_Linux_MHLV_2010WW05.tgz -C [installed_directory]
Building Android
Download android donut release into [Android_directory]
$ repo init -u git://android.git.kernel.org/platform/manifest -b donut
$ repo sync
Notes: please refer manifest file of [installed_directory]/pxa_donut/src/donut/manifest.xml
Apply PXA patches by following command
$ cp [installed_directory]/pxa_donut/src/donut/donut_patches/* [Android_directory]/ -rf
$ cd [Android_directory]/
$ ./apply_donut_patches.sh
$ tar zxvf [installed_directory]/pxa_donut/src/donut/vendor.tgz -C [Android_directory]/
如果之前装了 java6 sdk ，但编译 Android 需要 jdk5 ，所以先把 Java6 屏蔽掉。
lua@ubuntu:~$ ls /usr/bin/j*
/usr/bin/java /usr/bin/javaws /usr/bin/jexec /usr/bin/jockey-text
/usr/bin/java_vm /usr/bin/jcontrol /usr/bin/jockey-gtk /usr/bin/join
lua@ubuntu:~$ sudo mv /usr/bin/java /usr/bin/java.bak
lua@ubuntu:~$ sudo mv /usr/bin/javaws /usr/bin/javaws.bak
lua@ubuntu:~$ sudo mv /usr/bin/java_vm /usr/bin/java_vm.bak
lua@ubuntu:~$ ls /usr/bin/j*
/usr/bin/java.bak /usr/bin/jcontrol /usr/bin/jockey-text
/usr/bin/java_vm.bak /usr/bin/jexec /usr/bin/join
/usr/bin/javaws.bak /usr/bin/jockey-gtk
比如 jdk-1_5_0_21-linux-i586.bin 放到如下目录
/home/lua/Downloads
在 shell 窗口执行 sh jdk-1_5_0_21-linux-i586.bin
jdk5 将安装到 /home/lua/Downloads/jdk1.5.0_21
将 /home/lua/Downloads/jdk1.5.0_21/bin 添加到 PATH
lua@ubuntu:~$ echo $PATH
/home/lua/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/home/lua/arm-marvell-linux-gnueabi/bin:/home/lua/bin:/home/lua/work/android-sdk-linux_86/tools:/home/lua/work/eclipse:/home/lua/Downloads/jdk1.5.0_21/bin
测试 Java ，系统能找到 java 且版本正确。
lua@ubuntu:~$ which java
/home/lua/Downloads/jdk1.5.0_21/bin/java
lua@ubuntu:~$ which javac
/home/lua/Downloads/jdk1.5.0_21/bin/javac
lua@ubuntu:~$ java -version
java version "1.5.0_21"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_21-b01)
Java HotSpot(TM) Client VM (build 1.5.0_21-b01, mixed mode, sharing)
lua@ubuntu:~$ javac -version
javac 1.5.0_21
编译 donut 代码
lua@ubuntu:~$ cd donut/
lua@ubuntu:~/donut$ ls
apply_donut_patches.sh build external out prebuilt
apply_donut_patches.sh~ dalvik frameworks packages system
bionic development hardware patch.log vendor
bootable donut_patches Makefile patch.log~ vendor.tgz
lua@ubuntu:~/donut$ . build/envsetup.sh
lua@ubuntu:~/donut$ choosecombo
Build for the simulator or the device?
1. Device
2. Simulator
Which would you like? [1]
Build type choices are:
1. release
2. debug
Which would you like? [1]
Which product would you like? [generic] littleton
Variant choices are:
1. user
2. userdebug
3. eng
Which would you like? [eng] user
============================================
PLATFORM_VERSION_CODENAME=Donut
PLATFORM_VERSION=Donut
TARGET_PRODUCT=littleton
TARGET_BUILD_VARIANT=user
TARGET_SIMULATOR=false
TARGET_BUILD_TYPE=release
TARGET_ARCH=arm
HOST_ARCH=x86
HOST_OS=linux
HOST_BUILD_TYPE=release
BUILD_ID=Donut
============================================
如果是四核 CPU ，把虚拟机配置为 4 核，效率会提高 ( 需要关闭系统，然后设置 )
lua@ubuntu:~/donut$ make -j4
<!-- [endif]-->编译 Android Linux 内核
解压 linux kernel
$tar zxvf [installed_directory]/pxa_donut/src/linux-2.6.29-patches/base/linux-2.6.29.tgz -C [Android_directory]
打上 marvell 的 patch
$ cd [installed_directory]/pxa_donut/src/linux-2.6.29-patches/patches/
$ ./apply_kernel_patch.sh [Android_directory]/linux-2.6.29
进入 linux kernel 目录
$ cd [Android_directory]/linux-2.6.29
$ cp [Android_directory]/out/target/product/littleton/root root –a
要先将 arm-eabi-gcc 的路径添加到环境变量 PATH ，如果 Platform 的版本为： Android_PlatformRel_Linux_MHLV_2010WW05 则其 arm-eabi-gcc 的路径为 /donut/prebuilt/linux-x86/toolchain/arm-eabi-4.2.1/bin
$ export ARCH=arm
$ export CROSS_COMPILE=arm-eabi-
配置编译选项
$ make pxa3xx_android_defconfig
编译
$ make zImage
最终产生目标文件
After a short while, the binaries will be generated under arch/arm/boot/zImage