ISO:=georgios.iso

DISK:=disk.img

USBDRIVE:=usbdrive.img

BASE_ROOT_DIR:=root

STAGE_ROOT_DIR:=tmp/root

BOOT_DIR:=$(STAGE_ROOT_DIR)/boot

KERNEL:=$(BOOT_DIR)/kernel.elf

ZIG?=zig

GRUB_PREFIX:=/usr

GRUB_LOCATION:=$(GRUB_PREFIX)/lib/grub/i386-pc

DEBUGGER:=gdb

BOCHS?=bochs

zig_build_args="build"

ifdef multiboot_vbe

zig_build_args+="-Dmultiboot_vbe=$(multiboot_vbe)"

vbe?=$(multiboot_vbe)

ifdef vbe

zig_build_args+="-Dvbe=$(vbe)"

ifdef debug_log

zig_build_args+="-Ddebug_log=$(debug_log)"

ifdef wait_for_anykey

zig_build_args+="-Dwait_for_anykey=$(wait_for_anykey)"

ifdef direct_disk

zig_build_args+="-Ddirect_disk=$(direct_disk)"

ifdef run_rc

zig_build_args+="-Drun_rc=$(run_rc)"

ifdef halt_when_done

zig_build_args+="-Dhalt_when_done=$(halt_when_done)"

all: $(ISO) $(DISK) $(USBDRIVE)

$(STAGE_ROOT_DIR): $(shell find $(BASE_ROOT_DIR) -name '*')

@mkdir -p $(dir $@)

cp -rT $(BASE_ROOT_DIR) $@

cp $(GRUB_PREFIX)/share/grub/unicode.pf2 $(BOOT_DIR)/grub

touch $(STAGE_ROOT_DIR)

.PHONY: build_georgios

build_georgios: $(STAGE_ROOT_DIR)

python3 scripts/lint.py

$(ZIG) $(zig_build_args)

grub-file --is-x86-multiboot2 $(KERNEL)

nm --print-size --numeric-sort $(KERNEL) | grep -v '__' > tmp/annotated_kernel

objdump -S $(KERNEL) >> tmp/annotated_kernel

.PHONY: test

test:

$(ZIG) build test

$(ISO): build_georgios

grub-mkrescue --directory=$(GRUB_LOCATION) --output=$(ISO) --modules="$(GRUB_MODULES)" $(STAGE_ROOT_DIR)

$(DISK): build_georgios

rm -f $(DISK)

mke2fs -L '' -N 0 -O none -d $(STAGE_ROOT_DIR) -r 1 -t ext2 $(DISK) 20m

$(USBDRIVE): $(DISK)

cp $(DISK) $(USBDRIVE)

.PHONY: bochs

bochs:

rm -f $(DISK).lock

$(BOCHS) -q -f misc/bochs_config -rc misc/bochs_rc

.PHONY: qemu

qemu:

$(DEBUGGER) -x misc/qemu.gdb

.PHONY: clean

clean:

rm -fr tmp $(ISO) $(DISK) $(USBDRIVE) zig-cache