This article is about steps to cross-compile arm64 linux kernel, and common error when you building. You could build it in X86-64 OS or direct under aarch64 OS

 

Build Kernel:

make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- distclean vexpress_defconfig// this is for default config

make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- -j4 Image

make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- modules

 

Common error:

/bin/sh: bc: command not found kernel/time/Makefile:32:

recipe for target 'kernel/time/timeconst.h' failed

make[2]: *** [kernel/time/timeconst.h] Error 127

scripts/Makefile.build:402: recipe for target 'kernel/time' failed

make[1]: *** [kernel/time] Error 2

Makefile:937: recipe for target 'kernel' failed

make: *** [kernel] Error 2