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一、报错
在编译驱动程序过程中,经常碰到的一个小问题:
bash
make -C /home/lubancat/LubanCat_SDK/kernel M=/home/lubancat/lubancat_rk_code_storage/linux_driver/device_tree modules
make[1]: Entering directory '/home/lubancat/LubanCat_SDK/kernel'
ERROR: Kernel configuration is invalid.
include/generated/autoconf.h or include/config/auto.conf are missing.
Run 'make oldconfig && make prepare' on kernel src to fix it.
Makefile:630: include/config/auto.conf: No such file or directory
make[1]: *** [Makefile:691: include/config/auto.conf] Error 1
make[1]: Leaving directory '/home/lubancat/LubanCat_SDK/kernel'
make: *** [Makefile:10: all] Error 2
二、解决方法
1.先编译linux内核源码
步骤1如下:
bash
lubancat@lubancat-vm:~/LubanCat_SDK/kernel$ make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- lubancat2_defconfig
HOSTCC scripts/basic/fixdep
HOSTCC scripts/kconfig/conf.o
YACC scripts/kconfig/zconf.tab.c
LEX scripts/kconfig/zconf.lex.c
HOSTCC scripts/kconfig/zconf.tab.o
HOSTLD scripts/kconfig/conf
#
# configuration written to .config
#
步骤2如下:
bash
lubancat@lubancat-vm:~/LubanCat_SDK/kernel$ make ARCH=arm64 -j4 CROSS_COMPILE=aarch64-linux-gnu- dtbs
.....等待编译完成,这里省略中间的编译过程,最后的输出结果如下即可
Image Name:
Created: Tue Jul 29 14:27:08 2025
Image Type: AArch64 Linux Script (uncompressed)
Data Size: 1258 Bytes = 1.23 KiB = 0.00 MiB
Load Address: 00000000
Entry Point: 00000000
Contents:
Image 0: 1250 Bytes = 1.22 KiB = 0.00 MiB
2.再重新编译驱动程序
Makefile文件内容如下
bash
#指定linux内核源码的路径
KERNEL_DIR=/home/lubancat/LubanCat_SDK/kernel
ARCH=arm64
CROSS_COMPILE=aarch64-linux-gnu-
export ARCH CROSS_COMPILE
obj-m := get_dts_info.o
all:
$(MAKE) -C $(KERNEL_DIR) M=$(CURDIR) modules
.PHONE:clean
clean:
$(MAKE) -C $(KERNEL_DIR) M=$(CURDIR) clean
直接make,即可编译成功