Trimming Methods and Differences of Embedded Linux Kernel and Uboot
This section only records the general trimming method without introducing specific file modifications.
Linux Kernel Trimming Steps
1 Modify the ARCH and CROSS_COMPILE environment variables in the makefile
ARCH ?= arm
CROSS_COMPILE ?= XXX (your cross compiler)2 Find the configuration file xxxdeconfig in the arch/arm/configs folder, and modify it appropriately. Run the following in the root directory:
make xxxdeconfig3 Run make menuconfig in the root directory. If new content has been added in xxxdeconfig, Kconfig needs to be modified to match xxxdeconfig.
4 Run