Attempt 2 – pointing the Makefile to the correct kernel source tree for the target

So now, with the enhanced Makefile described in the previous section, it should work. In our new directory where we will try this out – cross (as we're cross-compiling, not that we're angry!) – follow along with these steps:

1. Attempt the build (for a second time) with the make command appropriate for cross-compilation:

$ make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-

--- Building : KDIR=~/rpi_work/kernel_rpi/linux ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- EXTRA_CFLAGS=-DDEBUG ---

make -C ~/rpi_work/kernel_rpi/linux M=/home/llkd/booksrc/ch5/cross modules
make[1]: Entering directory '/home/llkd/rpi_work/kernel_rpi/linux'

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.


 WARNING: Symbol version dump ./Module...