Rebuild Linux kernel#

编译Linux Kernel需要使用Developer SDK，Developer SDK分为两部分：

• STM32MP1Dev Linux源码包

• Yocto_SDK 交叉编译器

1. 配置交叉编译环境#

下载Developer SDK中的Yocto_SDK，按照安装提示进行操作：

$> source /home/fhc/cross_compiler/environment-setup-cortexa7t2hf-neon-vfpv4-ostl-linux-gnueabi

安装依赖：

$> sudo apt-get update
$> sudo apt-get install gawk wget git-core diffstat unzip texinfo gcc-multilib build-essential chrpath socat cpio python3 python3-pip python3-pexpect xz-utils debianutils iputils-ping python3-git python3-jinja2 libegl1-mesa libsdl1.2-dev pylint3 pylint xterm
$> sudo apt-get install make xsltproc docbook-utils fop dblatex xmlto
$> sudo apt-get install libmpc-dev libgmp-dev

2. 解压Linux内核源码并打上补丁#

• 解压Linux Kernel

$> cd stm32mp1-openstlinux-5.10-dunfell-mp1-21-11-17/sources/arm-ostl-linux-gnueabi/linux-stm32mp-5.10.61-stm32mp-r2-r0
$> tar xvf linux-5.10.61.tar.xz

• 打补丁

$> cd linux-5.10.61
$> for p in `ls -1 ../*.patch`; do patch -p1 < $p; done

apt-get install libyaml-dev libpython2.7-dev

sudo apt-get install libssl-dev