Below are some compile, assemble, and link lines for an example driver with two C source files (example_one.c and example_two.c) and an assembly language source file (example_asm.s).
cc -D_KERNEL -c example_one.c cc -D_KERNEL -c example_two.c as -P -D_ASM -D_KERNEL -I. -o example_asm.o example_asm.s ld -r -o example example_one.o example_two.o example_asm.o