1 2SRCS += multiboot_tramp.S \ 3 start.S \ 4 cpuid.c \ 5 trap.c \ 6 exec.c \ 7 exc.S 8 9OBJS += multiboot_tramp.o \ 10 start.o \ 11 cpuid.o \ 12 trap.o \ 13 exec.o \ 14 exc.o 15 16SRCS += nullconsole.c \ 17 spinconsole.c \ 18 comconsole.c 19 20OBJS += nullconsole.o \ 21 spinconsole.o \ 22 comconsole.o 23