AS := i386-elf-as
ASFLAGS := 
CC := i386-elf-gcc
CCFLAGS := -std=gnu99 -ffreestanding -O2 -Wall -Wextra -iquotelibbozo/headers
LD := $(CC)
LDFLAGS := -T boot/linker.ld -ffreestanding -O2 -nostdlib
LIBS := ./libbozo/build/libbozo.a -lgcc

SSRC := $(wildcard src/*.s)
CSRC := $(wildcard src/*.c)
OBJ := $(patsubst src/%.c,obj/%.o,$(CSRC))\
	$(patsubst src/%.s,obj/%.o,$(SSRC))

NAME := bozOS

all: $(NAME)

obj/%.o: src/%.s
	mkdir -p $(dir $@)
	$(AS) $(ASFLAGS) $< -o $@

obj/%.o: src/%.c
	mkdir -p $(dir $@)
	$(CC) $(CCFLAGS) -c $< -o $@

$(NAME): $(OBJ)
	make -C libbozo
	mkdir -p build/
	$(LD) $(LDFLAGS) -o build/$(NAME).bin $(OBJ) $(LIBS)

run: $(NAME)
	qemu-system-i386 -kernel build/$(NAME).bin

iso: $(NAME)
	mkdir -p isodir/boot/grub
	cp build/$(NAME).bin isodir/boot/bozOS.bin
	cp config/grub.cfg isodir/boot/grub/grub.cfg
	grub-mkrescue -o build/bozOS.iso isodir

run_iso: iso
	qemu-system-i386 -cdrom build/bozOS.iso

clean:
	make -C libbozo clean
	rm -rf obj/

fclean: clean
	make -C libbozo fclean
	rm -rf build/

re: fclean all

.PHONY: all clean fclean re run iso run_iso