miniOS/Makefile at master · markoelez/miniOS · GitHub

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TARGET = i686-minios
KERNEL = target/$(TARGET)/release/libminios.a
ISO = miniOS.iso
ISODIR = out

AS = x86_64-elf-as
LD = x86_64-elf-ld

ASFLAGS = --32
LDFLAGS = -m elf_i386 -T linker.ld -nostdlib

BOOT_ASM = src/arch/boot.s
BOOT_OBJ = target/boot.o

.PHONY: all build clean qemu iso

all: clean build iso qemu

build: $(KERNEL)

$(KERNEL): FORCE
	@echo "[cargo] building kernel..."
	@cargo build --release --target $(TARGET).json -Zbuild-std=core,alloc -Zbuild-std-features=compiler-builtins-mem

$(BOOT_OBJ): $(BOOT_ASM)
	@mkdir -p target
	@echo "[as] boot.s"
	@$(AS) $(ASFLAGS) -o $@ $<

target/kernel.bin: $(BOOT_OBJ) $(KERNEL)
	@echo "[ld] linking kernel..."
	@$(LD) $(LDFLAGS) -o $@ $(BOOT_OBJ) $(KERNEL)

iso: target/kernel.bin
	@echo "[iso] creating $(ISO)..."
	@mkdir -p $(ISODIR)/boot/grub
	@cp target/kernel.bin $(ISODIR)/boot/miniOS.kernel
	@bash ./grub_config.sh
	@i686-elf-grub-mkrescue -o $(ISO) $(ISODIR) 2>/dev/null

qemu: $(ISO)
	@echo "[qemu] starting..."
	@qemu-system-x86_64 -cdrom $(ISO) -serial stdio -m 128M

clean:
	@echo "[clean]"
	@cargo clean 2>/dev/null || true
	@rm -rf $(ISODIR) $(ISO) target/boot.o target/kernel.bin serial.log grub.cfg

FORCE: