/*************************************************************************
* I.MX6 Android 5.1.1 下载、编译
* 说明：
* 这里要提到的就是4.2版本，编译中断了，你接着编好像是没事的，但是这个
* 5.1.1版本貌似就得从头再编，这个有点郁闷。
*
* 2016-9-9 深圳 南山平山村 曾剑锋
************************************************************************/
一、购买VPN(为什么要买VPN？因为要去和Google打交道)：
https://www.expressvpn.xyz
二、下载参考文档：
http://www.nxp.com/zh-Hans/products/microcontrollers-and-processors/arm-processors/i.mx-applications-processors/i.mx-6-processors/i.mx6qp/i.mx-6duallite-processors-dual-core-3d-graphics-hd-video-arm-cortex-a9-core:i.MX6DL?fpsp=1&tab=Documentation_Tab
三、下载补丁包：
http://www.nxp.com/zh-Hans/products/software-and-tools/hardware-development-tools/sabre-development-system/sabre-platform-for-smart-devices-based-on-the-i.mx-6-series:RDIMX6SABREPLAT?fpsp=1&tab=Design_Tools_Tab
四、安装lib依赖：
sudo apt-get install git-core gnupg flex bison gperf build-essential zip curl zlib1g-dev gcc-multilib g++-multilib libc6-dev-i386 lib32ncurses5-dev x11proto-core-dev libx11-dev lib32z-dev ccache libgl1-mesa-dev libxml2-utils xsltproc unzip uuid uuid-dev zlib1g-dev liblz-dev liblzo2-2 liblzo2-dev lzop git-core curl u-boot-tools mtd-utils android-tools-fsutils
五、安装JDK：
sudo apt-get install openjdk-7-jdk
六、下载Android源代码：
$ cd ~
$ mkdir myandroid
$ mkdir bin
$ cd myandroid
$ curl http://commondatastorage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
$ chmod a+x ~/bin/repo
$ ~/bin/repo init -u https://android.googlesource.com/platform/manifest -b android-5.1.1_r1
$ ~/bin/repo sync # this command loads most needed repos. Therefore, it can take several hours to load.
$ cd ~/myandroid/prebuilts/gcc/linux-x86/arm
$ git clone https://android.googlesource.com/platform/prebuilts/gcc/linux-x86/arm/armeabi-4.6
$ cd arm-eabi-4.6
$ git checkout android-4.4.3_r1
七、下载kernel：
$ cd ~/myandroid
$ git clone git://git.freescale.com/imx/linux-2.6-imx.git kernel_imx # the kernel repo is large. Therefore, this process can take a while.
$ cd kernel_imx
$ git checkout l5.1.1_2.1.0-ga
八、下载u-boot：
$ cd ~/myandroid/bootable
$ cd bootloader
$ git clone git://git.freescale.com/imx/uboot-imx.git uboot-imx
$ cd uboot-imx
$ git checkout l5.1.1_2.1.0-ga
九、在home目录解压补丁包：
1. tar xvf IMX6_L5.1_2.1.0_AND_SOURCE_BSP.tar.gz
2. cd android_L5.1.1_2.1.0-ga_core_source/code/
3. tar xvf L5.1.1_2.1.0-ga.tar.gz
4. source ~/android_L5.1.1_2.1.0-ga_core_source/code/L5.1.1_2.1.0-ga/and_patch.sh
十、开始打补丁，出现warning：
$ c_patch ~/android_L5.1.1_2.1.0-ga_core_source/code/L5.1.1_2.1.0-ga/ imx_L5.1.1_2.1.0-ga
......
Applying patch to hardware/broadcom/libbt
/home/zengjf/myandroid/hardware/broadcom/libbt/.git/rebase-apply/patch:42: new blank line at EOF.
+
warning: 1 line adds whitespace errors.
/home/zengjf/myandroid/hardware/broadcom/libbt/.git/rebase-apply/patch:41: new blank line at EOF.
+
warning: 1 line adds whitespace errors.
/home/zengjf/myandroid/hardware/broadcom/libbt/.git/rebase-apply/patch:26: new blank line at EOF.
+
warning: 1 line adds whitespace errors.
Applying patch to hardware/broadcom/wlan
Applying patch to packages/wallpapers/MusicVisualization
Applying patch to external/aac
Applying patch to external/tremolo
Applying patch to external/libpng
Applying patch to external/sonivox
Applying patch to packages/apps/DeskClock
*************************************************************
Success: Now you can build android code for FSL i.MX platform
*************************************************************
十一、编译：
1. export JAVA_HOME=/usr/lib/jvm/java-7-openjdk-amd64/
2. cd ~/myandroid
3. source build/envsetup.sh
4. lunch sabresd_6dq-user
5. make 2>&1 | tee build-log.txt
十二、编译完成最后输出信息：
......
host C: libbz_32 <= external/bzip2/compress.c
host C: libbz_32 <= external/bzip2/decompress.c
host C: libbz_32 <= external/bzip2/bzlib.c
host StaticLib: libbz_32 (out/host/linux-x86/obj32/STATIC_LIBRARIES/libbz_intermediates/libbz.a)
Export includes file: bootable/recovery/applypatch/Android.mk -- out/host/linux-x86/obj32/EXECUTABLES/imgdiff_intermediates/export_includes
host Executable: imgdiff (out/host/linux-x86/obj32/EXECUTABLES/imgdiff_intermediates/imgdiff)
Notice file: bootable/recovery/applypatch/NOTICE -- out/host/linux-x86/obj/NOTICE_FILES/src//bin/imgdiff.txt
Notice file: external/bzip2/NOTICE -- out/host/linux-x86/obj/NOTICE_FILES/src//lib/libbz.a.txt
Install: out/host/linux-x86/bin/imgdiff
Import includes file: out/host/linux-x86/obj32/EXECUTABLES/bsdiff_intermediates/import_includes
host C: bsdiff <= external/bsdiff/bsdiff.c
external/bsdiff/bsdiff.c: In function 'main':
external/bsdiff/bsdiff.c:196:5: warning: 'pos' may be used uninitialized in this function [-Wmaybe-uninitialized]
Export includes file: external/bsdiff/Android.mk -- out/host/linux-x86/obj32/EXECUTABLES/bsdiff_intermediates/export_includes
host Executable: bsdiff (out/host/linux-x86/obj32/EXECUTABLES/bsdiff_intermediates/bsdiff)
Install: out/host/linux-x86/bin/bsdiff
Construct recovery from boot
mkdir -p out/target/product/sabresd_6dq/obj/PACKAGING/recovery_patch_intermediates/
PATH=out/host/linux-x86/bin:$PATH out/host/linux-x86/bin/imgdiff out/target/product/sabresd_6dq/boot.img out/target/product/sabresd_6dq/recovery.img out/target/product/sabresd_6dq/obj/PACKAGING/recovery_patch_intermediates/recovery_from_boot.p
chunk 0: type 0 start 0 len 7274506
chunk 1: type 2 start 7274506 len 1480704
chunk 2: type 0 start 8142159 len 49112
Construct patches for 3 chunks...
patch 0 is 205 bytes (of 7274506)
patch 1 is 435259 bytes (of 867653)
patch 2 is 594 bytes (of 49112)
chunk 0: normal ( 0, 7274506) 205
chunk 1: deflate ( 7274506, 1476108) 435259 (null)
chunk 2: normal ( 8750614, 48918) 594
Install system fs image: out/target/product/sabresd_6dq/system.img
out/target/product/sabresd_6dq/system.img+out/target/product/sabresd_6dq/obj/PACKAGING/recovery_patch_intermediates/recovery_from_boot.p maxsize=385389312 blocksize=4224 total=318349634 reserve=3894528
#### make completed successfully (07:51:40 (hh:mm:ss)) ####
zengjf@zengjf:~/myandroid$
十三、磁盘空间占用情况：
zengjf@zengjf:~/myandroid$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 97G 87G 5.2G 95% /
none 4.0K 0 4.0K 0% /sys/fs/cgroup
udev 2.0G 4.0K 2.0G 1% /dev
tmpfs 395M 1.1M 394M 1% /run
none 5.0M 0 5.0M 0% /run/lock
none 2.0G 152K 2.0G 1% /run/shm
none 100M 52K 100M 1% /run/user
zengjf@zengjf:~/myandroid$
十四、u-boot编译：
1. 环境变量：
1. export ARCH=arm
2. export CROSS_COMPILE=~/myandroid/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/bin/arm-eabi-
2. 编译：
1. make mx6dlsabresdandroid_config
2. make
十五、kernel编译：
1. 环境变量：
1. export PATH=~/myandroid/bootable/bootloader/uboot-imx/tools:$PATH
2. export ARCH=arm
3. export CROSS_COMPILE=~/myandroid/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/bin/arm-eabi-
2. 编译：
1. make imx_v7_android_defconfig
2. make uImage LOADADDR=0x10008000
十六、boot.img编译：
1. cd ~/myandroid
2. source build/envsetup.sh
3. lunch sabresd_6dq-user
4. make bootimage
十七、.bashrc环境变量
......
export JAVA_HOME=/usr/lib/jvm/java-7-openjdk-amd64/
export PATH=$PATH:$HOME/bin:$JAVA_HOME/bin
export ARCH=arm
export CROSS_COMPILE=~/myandroid/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/bin/arm-eabi-
export PATH=~/myandroid/bootable/bootloader/uboot-imx/tools:$PATH
export out=~/myandroid/out/target/product/sabresd_6dq
export uboot=~/myandroid/bootable/bootloader/uboot-imx
export kernel=~/myandroid/kernel_imx
export win=/mnt/hgfs/ftp_root
......
