Makefile

Makefile

@@ -0,0 +1,25 @@
+all: os-image
+
+run: all
+	qemu bin/os-image
+
+os-image: bin/bootloader.bin bin/kernel.bin
+	cat $^ > bin/os-image
+
+kernel.bin: bin/kernel_entry.o bin/kernel.o
+	ld -o kernel.bin -Ttext 0x1000 $^ --oformat binary
+
+kernel.o : src/kernel/kernel.c
+	gcc -ffreestanding -c $< -o $@
+
+kernel_entry.o : src/kernel/kernel_entry.asm
+	nasm $< -f elf -o $@
+
+bootloader.bin : src/bootloader/bootloader.asm
+	nasm $< -o $@
+
+clean:
+	rm -fr bin/*.bin bin/*.dis bin/*.o bin/os-image bin/*.map
+
+kernel.dis : bin/kernel.bin
+	ndisasm -b 32 $< > $@

src/kernel/kernel_entry.asm

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+[bits 32]
+[extern main]
+
+call main
+jmp $