内核编译

编译Linux内核，以备后续修改及分析驱动

参考文档

• Kernel building

Source

• https://github.com/raspberrypi/linux
• uname -a

steps

• sudo apt install git bc bison flex libssl-dev make
• 备份内核，防止无法正常启动
  • sudo su
  • cd /boot
  • cp kernel7l.img kernel7l.img.bak
  • exit
• KERNEL=kernel7l
• make bcm2711_defconfig
• make -j4 zImage modules dtbs
• sudo make modules_install
• sudo cp arch/arm/boot/dts/*.dtb /boot/
• sudo cp arch/arm/boot/dts/overlays/*.dtb* /boot/overlays/
• sudo cp arch/arm/boot/dts/overlays/README /boot/overlays/
• sudo cp arch/arm/boot/zImage /boot/$KERNEL.img
• sudo sync
• sudo reboot
• uname -a

修改配置

• make menuconfig