EXEC := boucane
CC := gcc -c -fno-pie -fno-builtin -fno-stack-protector -I ./
LD_SCRIPT := linker.ld

# Note that BOOT_OBJ do not match boot.S
# Indeed boot.o generated by boot.S should appear
# first in the kernel binary (thus it must be linked first, cf the $(EXEC) rule)
BOOT_OBJ := $(addsuffix .o,$(basename $(shell find ./boot -name "*.[c|S]" ! -name "boot.S")))
DRIVERS_OBJ := $(addsuffix .o,$(basename $(shell find ./drivers -name "*.[c|S]")))
LIBC_OBJ := $(addsuffix .o,$(basename $(shell find ./libc -name "*.[c|S]")))

all: $(EXEC)

$(EXEC): boot/boot.o $(BOOT_OBJ) $(DRIVERS_OBJ) $(LIBC_OBJ) boucane.o
	ld -n -T $(LD_SCRIPT) -nostdlib -o $@ $^ 

%.o: %.S
	as -o $@ $^

%.o: %.c
	$(CC) -o $@ $<
	
clean:
	rm -f $(EXEC)
	find ./ -name "*.o" -delete

.PHONY: clean cdrom