查看“MYZR-IMX8MM-EK240-8MM android9.0”的源代码

## i.Mx8mm android9.0Compilation manual

###Build the compilation environment

- ubuntu16.04
- openjdk8

####Dependent package installation

=> sudo apt-get install uuid uuid-dev

=> sudo apt-get install zlib1g-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

=> sudo apt-get install m4

=> sudo apt-get install libz-dev 

####installation openjdk8

=> sudo add-apt-repository ppa:openjdk-r/ppa

=> sudo apt-get update

=> sudo apt-get install openjdk-8-jdk

Edit the **.profile** file in the user directory and add the following content

=> vim ~/.profile

#Add the following content at the end of the file
export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64

export JRE_HOME=$JAVA_HOME/jre

export CLASSPATH=$JAVA_HOME/lib:$JRE_HOME/lib:$CLASSPATH

export PATH=$JAVA_HOME/bin:$PATH:$JRE_HOME/bin

-Reload the **.profile** file

=> source ~/.profile

# View the jdk version, verify the installation
=> java -version

openjdk version "1.8.0_242"

OpenJDK Runtime Environment (build 1.8.0_242-8u242-b08-0ubuntu3~16.04-b08)

OpenJDK 64-Bit Server VM (build 25.242-b08, mixed mode)

### Prepare source code package

#### Download source package

-Go to the Baidu SkyDrive MYZR-iMX8-201907/2.2_OS_Android9.1/02_Source directory to download all the compressed packages of imx8mm_android9.tar.bz2*

#### Unzip the source code

=> cat imx8mm_android9.tar.bz2* | tar xvj

### Compile

#### Set environment variables


=> export ANDROID_HOME=~/imx8mm_android

=> export ARCH=arm64

=> export CROSS_COMPILE=~/imx8mm_android/prebuilts/gcc/linux-x86/aarch64/aarch64-linux-android-4.9/bin/aarch64-linux-android-

=> source build/envsetup.sh

=> lunch evk_8mm-userdebug

#### Compile system

-Start compiling

=> cd $ANDROID_HOME

=> make 2>&1 -j8 | tee build-log.txt

#### Compile uboot

=> cd $ANDROID_HOME

=> make bootloader -j8

#### Compile the kernel

=> cd $ANDROID_HOME

=> cd vendor/nxp-opensource/kernel_imx

=> make myzr_imx8mm_android_defconfig

=> make KCFLAGS=-mno-android -j8

#### Compile bootimage

=> cd $ANDROID_HOME

=> make bootimage -j8

#### Compile dtboimage

=> cd $ANDROID_HOME

=> make dtboimage -j8

### Target file

=> cd $ANDROID_HOME

=> cd out/target/product/evk_8mm

### Below are the files we need
### boot.img
### dtbo-imx8mm.img
### system.img
### partition-table.img
### u-boot-imx8mm.imx
### u-boot-imx8mm-evk-uuu.imx
### vbmeta-imx8mm.img
### vendor.img