这里只是记录一些日志，难免有些错误，欢迎批评指正。
环境的建立：http://source.Android.com/source/initializing.html
源码下载参考：http://source.android.com/source/downloading.html
这里我下载4.0.3 的源码：
repo init -u https://android.googlesource.com/platform/manifest -b android-4.0.3_r1
下载的速度看个人的网络，这里我下了一天一夜。下载好之后就可以直接make -j4编译了，编译的时候用个大概3个小时，一旦按照以上两个连接编译的话，除了内存不够之外的应该没有什么问题，这里我遇到的是就是内存不够。
我机子是VMware + Ubuntu 11.04 2G内存 2G swap，后面编译的话会遇到类似如下错误：
Install: out/host/linux-x86/framework/dx.jar
Copy: dx (out/host/linux-x86/obj/EXECUTABLES/dx_intermediates/dx)
Install: out/host/linux-x86/bin/dx
target Dex: core
make: *** [out/target/common/obj/JAVA_LIBRARIES/core_intermediates/noproguard.classes-with-local.dex] 已杀死
主要原因是内存不够，解决办法可以是增加虚拟机的内存，或者是增加swap的大小。
以下是增加swap文件方法
1.创建一个 Swap 文件。
mkdir swap
cd swap
sudo dd if=/dev/zero of=swapfile bs=1024 count=100000
出现下列提示，上面命令中的 count 即代表swap文件大小。
记录了 100000+0 的读入
记录了 100000+0 的写出
102400000 字节 (102 MB) 已复制，0.74704 秒，137 MB/秒
把生成的文件转换成 Swap 文件
sudo mkswap swapfile
Setting up swapspace version 1, size = 102395 kB
no label, UUID=09fde987-5567-498a-a60b-477e302a988b
2.激活 Swap 文件。
sudo swapon swapfile
编译好之后设置环境变量 最后用emulator 运行
www @linux:~/android-4.0.3$ export PATH=$PATH:~/android-4.0.3/out/host/linux-x86/bin
www @linux:~/android-4.0.3$ export ANDROID_PRODUCT_OUT=~/android-4.0.3/out/target/product/generic
www @linux:~/android-4.0.3$ emulator
可以使用emulator -help 查看 命令的用法，例如
emulator -verbose 可以查看运行过程。
www @linux-station:~/android-4.0.3$ emulator -verbose
emulator: found Android build root: /home/luo/android-4.0.3
emulator: found Android build out: /home/luo/android-4.0.3/out/target/product/generic
emulator: Found target ABI=armeabi-v7a, architecture=arm
emulator: Found target API level: 15
emulator: using core hw config path: /home/luo/android-4.0.3/out/target/product/generic/hardware-qemu.ini
emulator: found skin-specific hardware.ini: /home/luo/android-4.0.3/development/tools/emulator/skins/HVGA/hardware.ini
emulator: autoconfig: -skin HVGA
emulator: autoconfig: -skindir /home/luo/android-4.0.3/development/tools/emulator/skins
emulator: writing default keyset file to /home/luo/.android/default.keyset
emulator: trying to load skin file '/home/luo/android-4.0.3/development/tools/emulator/skins/HVGA/layout'
emulator: skin network speed: 'full'
emulator: skin network delay: 'none'
emulator: Found target ABI=armeabi-v7a
emulator: autoconfig: -kernel /home/luo/android-4.0.3/prebuilt/android-arm/kernel/kernel-qemu-armv7
emulator: autoconfig: -ramdisk /home/luo/android-4.0.3/out/target/product/generic/ramdisk.img
emulator: autoconfig: -sysdir /home/luo/android-4.0.3/out/target/product/generic
emulator: Using initial system image: /home/luo/android-4.0.3/out/target/product/generic/system.img
emulator: WARNING: system partition size adjusted to match image file (166 MB > 66 MB)
emulator: autoconfig: -data /home/luo/android-4.0.3/out/target/product/generic/userdata-qemu.img
emulator: autoconfig: -initdata /home/luo/android-4.0.3/out/target/product/generic/userdata.img
emulator: Physical RAM size: 512MB
emulator: Auto-config: -qemu -cpu cortex-a8
Content of hardware configuration file:
hw.cpu.arch = arm
hw.cpu.model = cortex-a8
hw.ramSize = 512
hw.touchScreen = yes
hw.mainKeys = yes
hw.trackBall = yes
hw.keyboard = yes
hw.keyboard.lid = no
hw.keyboard.charmap = qwerty2
hw.dPad = yes
hw.gsmModem = yes
hw.camera = no
hw.camera.maxHorizontalPixels = 640
hw.camera.maxVerticalPixels = 480
hw.gps = yes
hw.battery = yes
hw.accelerometer = yes
hw.audioInput = yes
hw.audioOutput = yes
hw.sdCard = yes
hw.sdCard.path =
disk.cachePartition = yes
disk.cachePartition.path =
disk.cachePartition.size = 66m
hw.lcd.width = 320
hw.lcd.height = 480
hw.lcd.depth = 16
hw.lcd.density = 160
hw.lcd.backlight = yes
hw.gpu.enabled = no
hw.fakeCamera = back
hw.webcam.count = 6
hw.webcam.0.name = webcam0
hw.webcam.1.name = webcam1
hw.webcam.2.name = webcam2
hw.webcam.3.name = webcam3
hw.webcam.4.name = webcam4
hw.webcam.5.name = webcam5
hw.webcam.0.direction = front
hw.webcam.1.direction = back
hw.webcam.2.direction = front
hw.webcam.3.direction = front
hw.webcam.4.direction = front
hw.webcam.5.direction = front
vm.heapSize = 48
hw.sensors.proximity = yes
kernel.path = /home/luo/android-4.0.3/prebuilt/android-arm/kernel/kernel-qemu-armv7
kernel.parameters = android.checkjni=1
disk.ramdisk.path = /home/luo/android-4.0.3/out/target/product/generic/ramdisk.img
disk.systemPartition.initPath = /home/luo/android-4.0.3/out/target/product/generic/system.img
disk.systemPartition.size = 166m
disk.dataPartition.path = /home/luo/android-4.0.3/out/target/product/generic/userdata-qemu.img
disk.dataPartition.size = 66m
disk.snapStorage.path =
avd.name = <build>
.
QEMU options list:
emulator: argv[00] = "/home/luo/android-4.0.3/out/host/linux-x86/bin/emulator-arm"
emulator: argv[01] = "-android-hw"
emulator: argv[02] = "/tmp/android-luo/emulator-afcKDX"
Concatenated QEMU options:
/home/luo/android-4.0.3/out/host/linux-x86/bin/emulator-arm -android-hw /tmp/android-luo/emulator-afcKDX
emulator: registered 'boot-properties' qemud service
emulator: nand_add_dev: system,size=0xa600000,initfile=/home/luo/android-4.0.3/out/target/product/generic/system.img
emulator: mapping 'system' NAND image to /tmp/android-luo/emulator-eyG1eN
emulator: rounding devsize up to a full eraseunit, now a608000
WARNING: Data partition already in use. Changes will not persist!
emulator: nand_add_dev: userdata,size=0x4200000
emulator: mapping 'userdata' NAND image to /tmp/android-luo/emulator-RO2LHH
emulator: registered 'boot-properties' qemud service
emulator: Adding boot property: 'dalvik.vm.heapsize' = '48m'
emulator: Adding boot property: 'qemu.sf.lcd_density' = '160'
emulator: Adding boot property: 'qemu.hw.mainkeys' = '1'
emulator: Adding boot property: 'qemu.sf.fake_camera' = 'back'
emulator: nand_add_dev: cache,size=0x4200000
emulator: mapping 'cache' NAND image to /tmp/android-luo/emulator-wX6JvG
emulator: Kernel parameters: qemu.gles=0 qemu=1 console=ttyS0 android.qemud=ttyS1 android.checkjni=1 ndns=1
emulator: Trace file name is not set
emulator: autoconfig: -scale 1
emulator: control console listening on port 5556, ADB on port 5557
emulator: can't connect to ADB server: Connection refused
emulator: ping program: /home/luo/android-4.0.3/out/host/linux-x86/bin/ddms
emulator: ping command: /home/luo/android-4.0.3/out/host/linux-x86/bin/ddms ping emulator 14.0
goldfish_fb_get_pixel_format:167: display surface,pixel format:
bits/pixel: 16
bytes/pixel: 2
depth: 16
red: bits=5 mask=0xf800 shift=11 max=0x1f
green: bits=6 mask=0x7e0 shift=5 max=0x3f
blue: bits=5 mask=0x1f shift=0 max=0x1f