# gcc -v lab4.c -o lab4
.PHONY: all clean
all: lab4

# preprocess C
lab4_expanded.c: lab4.c
	cpp lab4.c -o lab4_expanded.c

# translate C to assembly
lab4_expanded.s: lab4_expanded.c
	/usr/lib/gcc/arm-linux-gnueabihf/8/cc1 lab4_expanded.c

# assemble object code
lab4.o: lab4_expanded.s
	as lab4_expanded.s -o lab4.o

# link objects
lab4: lab4.o
	ld \
	  -dynamic-linker=/lib/ld-linux-armhf.so.3 \
	  /usr/lib/gcc/arm-linux-gnueabihf/8/../../../arm-linux-gnueabihf/crti.o \
	  /usr/lib/gcc/arm-linux-gnueabihf/8/crtbegin.o \
	  /usr/lib/gcc/arm-linux-gnueabihf/8/crtend.o \
	  /usr/lib/gcc/arm-linux-gnueabihf/8/../../../arm-linux-gnueabihf/crtn.o \
	  /usr/lib/gcc/arm-linux-gnueabihf/8/../../../arm-linux-gnueabihf/crt1.o \
	  lab4.o \
	  -o lab4 \
	  -lc

clean:
	@rm -f lab4_expanded.c
	@rm -f *.s
	@rm -f *.o
	@rm -f lab4