I.MX6q环境中下载和编译android8.0源码------不再更新8.0

１／去飞思卡尔官网下载相关资料，如下链接：

https://www.nxp.com/products/processors-and-microcontrollers/arm-based-processors-and-mcus/i.mx-applications-processors/i.mx-8-processors/i.mx-software-and-development-tool:IMX-SW

需下载　imx-o8.0.0_1.0.0_ga.tar.gz　文件，链接如下：　（注册下载）

https://www.nxp.com/webapp/sps/download/preDownload.jsp

２／配置环境

（android官方Ubuntu 14.04环境下所需）

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 libgl1-mesa-dev libxml2-utils xsltproc unzip

（飞思卡尔所需软件包）

sudo apt-get install uuid uuid-dev
sudo apt-get install zliblg-dev liblz-dev
sudo apt-get install liblzo2-2 liblzo2-dev
sudo apt-get install lzop
sudo apt-get install git-core curl
sudo apt-get install u-boot-tools
sudo apt-get install mtd-utils
sudo apt-get install android-tools-fsutils
sudo apt-get install openjdk-8-jdk
sudo apt-get install device-tree-compiler
sudo apt-get install gdisk

３／配置git

git config--global user.name“first last”

git config--global user.email“[email protected]”

４／接下解压　imx-o8.0.0_1.0.0_ga.tar.gz　文件到根目录（可以复制到）

tar xzvf mx-o8.0.0_1.0.0_ga.tar.gz

５／下载源码

mkdir ~/bin
curl https://storage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
chmod a+x ~/bin/repo
export PATH=${PATH}:~/bin
source ~/imx-o8.0.0_1.0.0_ga/imx_android_setup.sh

默认情况下，imx_android_setup.sh脚本将创建源代码构建环境
在文件夹~/android_build中

漫长等待之后。。。。下载成功，如下显示

remote: Total 31731 (delta 5319), reused 31317 (delta 5319)         
Receiving objects: 100% (31731/31731), 1.69 GiB | 546.00 KiB/s, done.
Resolving deltas: 100% (5319/5319), done.
From https://android.googlesource.com/platform/prebuilts/gradle-plugin
 * [new tag]           android-8.0.0_r25 -> android-8.0.0_r25
Fetching projects: 100% (596/596)
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Android source is ready for the build

 如果出现 error: Exited sync due to gc errors 的原因，除非的你的ubuntu版本真的很老，可以google解决之外。解决不了的情况下，重装系统是首要选择。我的是18.04，我由于上次下载的android8.1官方版的没有删除干净导致，浪费了太长时间在查找问题上，重装系统之后一步到位。

关于编译如下，

source build/envsetup.sh

lunch sabresd_6dq-userdebug

make 2>&1 | tee build-log.txt

编译过程中出现

 build stopped: subcommand failed.问题

执行

export LC_ALL=C

然后重复上述编译过程。

 

 

。。。。。。。。。。。。。。。。。经过领导安排，由于种种原因，最终还是选择了4.4.2版本（驱动之类的已经完善，更稳定，更适配目前的硬件），所以之后不再涉及高版本的源码相关知识，或许，当硬件大升级之后，会做高版本的处理再来研究吧，后续博客会更新我的4.4.2 开发遇到得问题和困难以及如何解决问题的