85 lines
1.8 KiB
Makefile
85 lines
1.8 KiB
Makefile
PROGRAMS = hello.com
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KERNEL = @rdos.com
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DISTFILES = $(KERNEL) $(PROGRAMS)
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ROMS =
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QEMU = qemu-system-i386
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QEMU_ARGS = $(addprefix --option-rom ,$(ROMS))
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VERSION = $(shell git log -1 --format=%cd --date=format:%Y%m%d)
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PRODUCT = rdos
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LABEL = $(PRODUCT) $(VERSION)
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NASM = nasm
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NASM_ARGS = -s -Ilib -DPRODUCT=$(PRODUCT) -DVERSION=$(VERSION)
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QEMU_ARGS += $(shell test -w /dev/kvm && echo --enable-kvm)
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ifdef DEBUG
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ROMS += dprintf.rom
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NASM_ARGS += -l $(basename $@).lst -DDEBUG=1
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endif
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ifndef DISPLAY
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QEMU_ARGS += --display curses
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endif
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SYS = host/sys.elf
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FIXROM = host/fix-rom.elf
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.PHONY: default clean qemu-floppy5 qemu-floppy3
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.PRECIOUS: $(DISTFILES)
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default: fd1440.img
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# Host utils
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host/%.elf: host/%.c
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$(CC) -o $@ $<
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# COM programs
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%.com: com/%.asm
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$(NASM) $(NASM_ARGS) -o $@ $<
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# Bootloaders, first sector on partition
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%.bs: boot/%.asm
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$(NASM) $(NASM_ARGS) -o $@ $<
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@rdos.com: kernel/*.asm
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# Special case: variations of FAT vbr
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fat1.bs: boot/fat.asm
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$(NASM) $(NASM_ARGS) -DFAT12 -DCHS -o $@ $<
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fat4.bs: boot/fat.asm
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$(NASM) $(NASM_ARGS) -DFAT16 -DCHS -o $@ $<
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fat6.bs: boot/fat.asm
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$(NASM) $(NASM_ARGS) -DFAT16 -DCHS -DLARGE -o $@ $<
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# BIOS option roms
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%.rom: rom/%.asm $(FIXROM)
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$(NASM) $(NASM_ARGS) -o $@ $< && $(FIXROM) $@
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fd%.img: $(DISTFILES) $(SYS)
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mformat -C -i $@ -f $* -c 2 -v "$(LABEL)" ::
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mcopy -i $@ $(DISTFILES) ::
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$(SYS) $@ $(KERNEL)
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hdd.img: mbr.bs $(KERNEL) fd1440.img
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dd if=mbr.bs bs=512 count=1 of=$@
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dd if=$(KERNEL) bs=512 seek=1 of=$@
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dd if=fd1440.img bs=512 seek=63 of=$@
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clean:
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rm -f *.com *.bs *.0 *.lst *.img *.bin *.rom
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rm -f host/*.elf
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qemu-floppy3: fd1440.img $(ROMS)
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$(QEMU) $(QEMU_ARGS) -boot a -fda fd1440.img
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qemu-floppy5: fd360.img $(ROMS)
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$(QEMU) $(QEMU_ARGS) -boot a -fda fd360.img
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qemu-hdd: hdd.img $(ROMS)
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$(QEMU) $(QEMU_ARGS) -boot c -hda hdd.img
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