# Define the object files
OBJS = bin/boot.o bin/kernel.o bin/idt.o bin/isr.o bin/screen.o bin/utils.o bin/string.o bin/stdio.o bin/disk.o bin/pic.o bin/pit.o bin/keyboard.o bin/paging.o bin/fat.o bin/task.o bin/switch.o

# Define the compiler and assembler
CC = gcc -D__is_katauos
AS = nasm

# Define the compiler flags
CFLAGS = -I./include/ -std=gnu99 -ffreestanding -O0 -Wall -Wextra -m32 -g
ASFLAGS = -f elf32

# Define the linker flags
LDFLAGS = -ffreestanding -O0 -nostdlib -m32 -g -lgcc
LDSCRIPT = link.ld

# Define the output file
OUTPUT = myos.bin

all: $(OUTPUT)

create-image:
	cp myos.bin grubshit/boot/
	dd if=/dev/zero of=boot.iso bs=1M count=256
	parted boot.iso --script mklabel msdos
	parted boot.iso --script mkpart primary fat32 1MiB 100%
	sudo losetup /dev/loop0 boot.iso
	sudo losetup /dev/loop1 boot.iso -o 1048576
	#sudo mkdosfs -F32 -f 2 /dev/loop1
	sudo mkfs.vfat -F32 -f 2 /dev/loop1
	sudo mount /dev/loop1 /mnt
	sudo grub-install --root-directory=/mnt --no-floppy --modules="normal part_msdos ext2 multiboot biosdisk" /dev/loop0 #there was biosdev also
	sudo cp -r grubshit/* /mnt/
	sync
	sudo umount /mnt
	sudo losetup -D

image:
	cp myos.bin grubshit/boot
	sudo losetup /dev/loop0 boot.iso
	sudo losetup /dev/loop1 boot.iso -o 1048576
	sudo mount /dev/loop1 /mnt
	sudo cp -r grubshit/* /mnt/
	sync
	sudo umount /mnt
	sudo losetup -D

test:
	qemu-system-i386 -drive file=boot.iso,media=disk,format=raw -m 512M -d int
	#qemu-system-i386 -s -S -kernel myos.bin

test-bochs:
	bochs -f bochsrc

$(OUTPUT): $(OBJS)
	$(CC) -T $(LDSCRIPT) -o $@ $(OBJS) $(LDFLAGS)

bin/boot.o: src/boot.asm
	$(AS) $(ASFLAGS) $< -o $@

bin/kernel.o: src/kernel/kernel.c
	$(CC) $(CFLAGS) -c $< -o $@

bin/screen.o: src/drivers/screen.c
	$(CC) $(CFLAGS) -c $< -o $@

bin/isr.o: src/kernel/isr.c
	$(CC) $(CFLAGS) -mgeneral-regs-only -c $< -o $@

bin/idt.o: src/kernel/idt.c
	$(CC) $(CFLAGS) -c $< -o $@

bin/utils.o: src/utils/utils.c
	$(CC) $(CFLAGS) -c $< -o $@

bin/string.o: src/utils/string.c
	$(CC) $(CFLAGS) -c $< -o $@

bin/stdio.o: src/utils/stdio.c
	$(CC) $(CFLAGS) -c $< -o $@

bin/disk.o: src/drivers/disk.c
	$(CC) $(CFLAGS) -c $< -o $@

bin/pic.o: src/kernel/pic.c
	$(CC) $(CFLAGS) -c $< -o $@

bin/pit.o: src/kernel/pit.c
	$(CC) $(CFLAGS) -c $< -o $@

bin/keyboard.o: src/drivers/keyboard.c
	$(CC) $(CFLAGS) -c $< -o $@

bin/paging.o: src/mm/paging.c
	$(CC) $(CFLAGS) -c $< -o $@

bin/fat.o: src/drivers/fat.c
	$(CC) $(CFLAGS) -c $< -o $@

bin/switch.o: src/tasking/switch.asm
	$(AS) $(ASFLAGS) $< -o $@

bin/task.o: src/tasking/task.c
	$(CC) $(CFLAGS) -c $< -o $@

clean:
	rm -rf bin/
	rm -f $(OUTPUT)
	rm boot.iso

.PHONY: all clean