2014-10-15 17:00:21 +00:00
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# $@ = target file
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# $< = first dependency
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# $^ = all dependencies
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2014-10-15 17:03:32 +00:00
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# First rule is the one executed when no parameters are fed to the Makefile
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2014-10-15 17:00:21 +00:00
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all: run
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# Notice how dependencies are built as needed
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kernel.bin: kernel_entry.o kernel.o
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i386-elf-ld -o $@ -Ttext 0x1000 $^ --oformat binary
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kernel_entry.o: kernel_entry.asm
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nasm $< -f elf -o $@
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kernel.o: kernel.c
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i386-elf-gcc -ffreestanding -c $< -o $@
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# Rule to disassemble the kernel - may be useful to debug
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kernel.dis: kernel.bin
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ndisasm -b 32 $< > $@
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bootsect.bin: bootsect.asm
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nasm $< -f bin -o $@
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os-image.bin: bootsect.bin kernel.bin
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cat $^ > os-image.bin
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run: os-image.bin
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qemu-system-i386 -fda $<
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clean:
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rm *.bin *.o *.dis
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