NAME := bozOS

AS := i386-elf-as
ASFLAGS := 
CC := i386-elf-gcc
CFLAGS := -std=gnu99 -ffreestanding -Wall -Wextra -iquotelibbozo/headers -iquoteheaders -MMD -fno-omit-frame-pointer -fstack-protector-all -g
LD := $(CC)
LDFLAGS := -T boot/linker.ld -ffreestanding -nostdlib
LIBS := -L libbozo/build/ -lbozo -lgcc

SSRC := $(shell find src -name '*.s')
CSRC := $(shell find src -name '*.c')
OBJ := $(patsubst src/%.c,obj/%.o,$(CSRC))\
	$(patsubst src/%.s,obj/%.o,$(SSRC))
DEP := $(patsubst %.o,%.d,$(OBJ))


all: $(NAME)

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

obj/%.o: src/%.c
	mkdir -p $(dir $@)
	$(CC) $(CFLAGS) -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 -vga std

iso: $(NAME)
	mkdir -p isodir/boot/grub
	cp build/$(NAME).bin isodir/boot/$(NAME).bin
	cp config/grub.cfg isodir/boot/grub/grub.cfg
	grub-mkrescue -o build/$(NAME).iso --compress=xz --locales=en@quot --themes= isodir
	rm -rf isodir

fast-iso: $(NAME)
	mkdir -p isodir/boot/grub
	cp build/$(NAME).bin isodir/boot/$(NAME).bin
	cp config/grub.cfg isodir/boot/grub/grub.cfg
	grub-mkrescue -o build/$(NAME).iso --themes= isodir
	rm -rf isodir

run-iso: iso
	qemu-system-i386 -cdrom build/$(NAME).iso -vga std

fast-run-iso: fast-iso
	qemu-system-i386 -cdrom build/$(NAME).iso -vga std

debug: iso
	qemu-system-i386 -s -S build/$(NAME).iso -vga std

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

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

re: 
	$(MAKE) fclean 
	$(MAKE) all

.PHONY: all clean fclean re run iso run-iso fast-iso fast-run-iso
-include $(DEP)