nasm-os/Makefile at master · vinceswu/nasm-os · GitHub

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# Variables
ASM = nasm
CC16 = /usr/bin/watcom/binl/wcc
CFLAGS16= -s -wx -ms -zl -zq
LD16=/usr/bin/watcom/binl/wlink
ASM_FLAGS= -f obj
SRC_DIR = src
BUILD_DIR = build

all: clean always floppy_image bootloader kernel

# floppy image
floppy_image: $(BUILD_DIR)/main.img
$(BUILD_DIR)/main.img: bootloader kernel
	dd if=/dev/zero of=$(BUILD_DIR)/main.img bs=512 count=2880
	mkfs.fat -F 12 -n "NASMOS" $(BUILD_DIR)/main.img
	dd if=$(BUILD_DIR)/bootloader.bin of=$(BUILD_DIR)/main.img conv=notrunc
	mcopy -i $(BUILD_DIR)/main.img $(BUILD_DIR)/kernel.bin "::kernel.bin"

# bootloader
bootloader: $(BUILD_DIR)/bootloader.bin
$(BUILD_DIR)/bootloader.bin:
	$(ASM) $(SRC_DIR)/bootloader/boot.asm -f bin -o $(BUILD_DIR)/bootloader.bin

# kernal
kernel: $(BUILD_DIR)/kernel.bin
$(BUILD_DIR)/kernel.bin:
	$(ASM) $(ASM_FLAGS) -o $(BUILD_DIR)/kernel/asm/main.obj $(SRC_DIR)/kernel/main.asm
	$(ASM) $(ASM_FLAGS) -o $(BUILD_DIR)/kernel/asm/print.obj $(SRC_DIR)/kernel/stdio/print.asm
	$(ASM) $(ASM_FLAGS) -o $(BUILD_DIR)/kernel/asm/disk.obj $(SRC_DIR)/kernel/disk/asmDisk.asm
	$(CC16) $(CFLAGS16) -fo=$(BUILD_DIR)/kernel/c/main.obj $(SRC_DIR)/kernel/main.c
	$(CC16) $(CFLAGS16) -fo=$(BUILD_DIR)/kernel/c/stdio.obj $(SRC_DIR)/kernel/stdio/stdio.c
	$(LD16) NAME $(BUILD_DIR)/kernel.bin FILE \{$(BUILD_DIR)/kernel/asm/main.obj $(BUILD_DIR)/kernel/asm/print.obj $(BUILD_DIR)/kernel/c/main.obj $(BUILD_DIR)/kernel/c/stdio.obj $(BUILD_DIR)/kernel/asm/disk.obj \} OPTION MAP=$(BUILD_DIR)/kernel.map @$(SRC_DIR)/kernel/linker.lnk

always:
	mkdir -p $(BUILD_DIR)
	mkdir -p $(BUILD_DIR)/kernel
	mkdir -p $(BUILD_DIR)/kernel/asm
	mkdir -p $(BUILD_DIR)/kernel/c

clean:
	rm -rf build/*