# 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/page_alloc.o bin/page_tables.o \
       bin/fat.o bin/task.o bin/switch.o bin/sys_exit.o bin/gdt.o bin/isr-asm.o \
	   bin/kheap.o bin/liballoc.o bin/exec_from_file.o bin/syscalls.o bin/atapi.o \
	   bin/lib9660.o bin/vfs.o bin/apic.o

# Define the compiler and assembler
#CC = i686-elf-gcc -D__is_katauos
CC = gcc -D__is_katauos
AS = nasm
#LD = i686-elf-ld
LD = ld

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

# Define the linker flags
LDFLAGS = -m elf_i386 -L$(shell $(CC) -print-libgcc-file-name | xargs dirname)/32/ -lgcc
LDSCRIPT = link.ld

# Define the output file
OUTPUT = katauos.bin

all: $(OUTPUT)

create-image:
	cp katauos.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 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
	sudo cp -r grubshit/* /mnt/
	sync
	sudo umount /mnt
	sudo losetup -D

image:
	cp katauos.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

iso:
	mkdir -p tmp
	mkdir -p katauos
	mkdir -p katauos/katau/
	sudo mount rootfs.iso9660 tmp/
	sudo cp -R tmp/* katauos/
	sudo chown -R kali:kali katauos/
	cp katauos.bin grubshit/boot
	cp katauos.bin katauos/boot/
	cp grubshit/boot/grub/grub.cfg katauos/boot/grub/grub.cfg

	cp grubshit/caller katauos/katau/caller
	cp grubshit/callee katauos/katau/callee
	cp grubshit/callee2 katauos/katau/callee2

	cp grubshit/zsh katauos/katau/zsh

	sudo umount tmp/
	grub-mkrescue -o boot.iso katauos/

test-cdrom:
	qemu-system-i386 -cdrom boot.iso -m 4096M -d int

cdrom:
	qemu-system-i386 -cdrom boot.iso -m 32M

debug-cdrom:
	qemu-system-i386 -s -S -cdrom boot.iso -m 4096M -monitor stdio

test:
	qemu-system-i386 -drive file=boot.iso,media=disk,format=raw -m 4096M -d int

debug:
	qemu-system-i386 -s -S -kernel katauos.bin -monitor stdio

debug2:
	qemu-system-i386 -s -S -drive file=boot.iso,media=disk,format=raw -m 4096M -monitor stdio

test-bochs:
	bochs -f bochsrc

$(OUTPUT): $(OBJS)
	$(LD) -N -T $(LDSCRIPT) -nostdlib -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/page_alloc.o: src/mm/page_alloc.c
	$(CC) $(CFLAGS) -c $< -o $@

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

bin/fat.o: src/fs/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 $@

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

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

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

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

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

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

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

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

bin/lib9660.o: src/fs/lib9660.c
	$(CC) $(CFLAGS) -c $< -o $@

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

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

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

.PHONY: all clean