build cm-11 source code

编译环境准备

编译环境

uname -a
Linux wonfee-ThinkPad-T540p 3.16.7-ckt5my-very-own-kernel #1 SMP Fri Feb 27 23:04:29 CST 2015 x86_64 x86_64 x86_64 GNU/Linux

cat /etc/issue
Ubuntu 14.04.2 LTS \n \l

java -version
java version “1.6.0_30”
Java(TM) SE Runtime Environment (build 1.6.0_30-b12)
Java HotSpot(TM) 64-Bit Server VM (build 20.5-b03, mixed mode)

安装其他必要的库

该部分可参考android源码官方编译文档，若已成功编译过android源码，则该部分的库应该都已经安装。
sudo apt-get install bison build-essential curl flex \
g++-multilib gcc-multilib git-core gnupg gperf \
lib32ncurses5-dev lib32readline-gplv2-dev lib32z1-dev \
libesd0-dev libncurses5-dev libsdl1.2-dev \
libwxgtk2.8-dev libxml2 libxml2-utils lzop \
openjdk-6-jdk openjdk-6-jre pngcrush schedtool \
squashfs-tools xsltproc zip zlib1g-dev

下载cm源码

参考： CyanogenMod Source Code Download

下载好cm-11源码后，如果要编译此时还需要下载其所支持机型相关的device、kernel等代码, 这里以官方所支持的nexus7机型作为测试。

从cm官方的github页面[cm-github][2]搜索grouper可以看到还需要下载device和kernel部分，分别为android_device_asus_grouper、android_kernel_asus_grouper，
mkdir -p device/asus/ && cd device/asus
git clone https://github.com/CyanogenMod/android_kernel_asus_grouper.git grouper
cd ../../
mkdir -p kernel/asus && cd kernel/asus/
git clone https://github.com/CyanogenMod/android_device_asus_grouper.git grouper

编译CM-11 源码

source build/envsetup.sh 

including device/generic/armv7-a-neon/vendorsetup.sh
including device/generic/goldfish/vendorsetup.sh
including device/generic/mips/vendorsetup.sh
including device/generic/x86/vendorsetup.sh
including vendor/cm/vendorsetup.sh
including sdk/bash_completion/adb.bash
including vendor/cm/bash_completion/git.bash
including vendor/cm/bash_completion/repo.bash

breakfast grouper

Download the necessary prebuilts from cyanogenmod by running

cd verdor/cm/

. get-prebuilts 

  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   178  100   178    0     0    229      0 --:--:-- --:--:-- --:--:--   229
100  551k  100  551k    0     0   265k      0  0:00:02  0:00:02 --:--:-- 1531k
Archive:  ./proprietary/Term.apk
  inflating: ./proprietary/lib/armeabi/libjackpal-androidterm5.so  
  inflating: ./proprietary/lib/mips/libjackpal-androidterm5.so  
  inflating: ./proprietary/lib/x86/libjackpal-androidterm5.so  
  inflating: ./proprietary/lib/armeabi/libjackpal-termexec2.so  
  inflating: ./proprietary/lib/mips/libjackpal-termexec2.so  
  inflating: ./proprietary/lib/x86/libjackpal-termexec2.so

croot

Building the ROM

brunch grouper 

running:  java -Xmx2048m -jar /data/Android/Cyanogenmod/out/host/linux-x86/framework/signapk.jar -w build/target/product/security/testkey.x509.pem build/target/product/security/testkey.pk8 /tmp/tmpFcHrQD /data/Android/Cyanogenmod/out/target/product/grouper/cm_grouper-ota-387c0dd2e4.zip
done.
Package Complete: /data/Android/Cyanogenmod/out/target/product/grouper/cm-11-20150824-UNOFFICIAL-grouper.zip

注意事项：

  1. 若编译环境有配置NDK_ROOT环境变量，则编译前需要取消该环境变量unset NDK_ROOT, 否则编译会直接如下报错;
    build/core/base_rules.mk:134: * external/webrtc/src/system_wrappers/source: MODULE.TARGET.STATIC_LIBRARIES.libwebrtc_system_wrappers already defined by external/webrtc/src/system_wrappers/source. Stop.
    build error!