rdos/Makefile
Ain 31eac279c2 Revert to more sensible kernel.bs boot scheme
I think i should consider it a necessity that the kernel is accessible
as a regular file. This makes installing rdos on another blockdev
much easier.
2020-09-20 19:58:19 +02:00

88 lines
1.9 KiB
Makefile

PROGRAMS = hello.com
DISTFILES = kernel.bs $(PROGRAMS)
ROMS =
QEMU = qemu-system-i386
QEMU_ARGS = $(addprefix --option-rom ,$(ROMS))
VERSION = $(shell git log -1 --format=%cd --date=format:%Y%m%d)
LABEL = RDOS $(VERSION)
NASM = nasm
NASM_ARGS = -s -Ilib -DVERSION=$(VERSION)
KVM = $(shell test -w /dev/kvm && echo 1)
ifdef KVM
QEMU_ARGS += --enable-kvm
endif
ifdef DEBUG
ROMS += dprintf.rom
NASM_ARGS += -l $(basename $@).lst
endif
ifndef DISPLAY
QEMU_ARGS += --display curses
endif
.PHONY: default bootstrap clean qemu-rom qemu-floppy qemu-pxe
default: fd1440.img
# Host utils
utils/%: %.c
mkdir -p utils
$(CC) -o $@ $<
# COM programs
%.com: com/%.asm
$(NASM) $(NASM_ARGS) -o $@ $<
# Bootloaders, first sector on partition
%.bs: boot/%.asm
$(NASM) $(NASM_ARGS) -o $@ $<
kernel.bs: kernel/*.asm
# Special case: variations of FAT vbr
fat1.bs: boot/fat.asm
$(NASM) $(NASM_ARGS) -DFAT12 -DCHS -o $@ $<
fat4.bs: boot/fat.asm
$(NASM) $(NASM_ARGS) -DFAT16 -DCHS -o $@ $<
fat6.bs: boot/fat.asm
$(NASM) $(NASM_ARGS) -DFAT16 -DCHS -DLARGE -o $@ $<
# BIOS option roms
%.rom: rom/%.asm utils/fix-rom
$(NASM) $(NASM_ARGS) -o $@ $< && utils/fix-rom $@
fd%.img: fat1.bs $(DISTFILES)
mformat -C -i $@ -f $* -R 8 -v "$(LABEL)" -B fat1.bs ::
mcopy -i $@ $(DISTFILES) ::
mattrib -i $@ +s ::kernel.bs
hdimage.img: mbr.bs fd1440.img
cat mbr.bs fd1440.img >$@
clean:
rm -f *.com *.bs *.0 *.lst *.img *.bin *.rom
rm -rf utils
qemu-floppy: fd1440.img $(ROMS)
$(QEMU) $(QEMU_ARGS) -boot a -fda fd1440.img
qemu-hdd: hdimage.img $(ROMS)
$(QEMU) $(QEMU_ARGS) -boot c -hda hdimage.img
qemu-pxe: pxeboot.0 $(ROMS)
$(QEMU) $(QEMU_ARGS) -boot n \
-option-rom /usr/share/qemu/pxe-rtl8139.rom \
-device e1000,netdev=mynet0,mac=52:54:00:12:34:56 \
-netdev user,id=mynet0,net=192.168.76.0/24,dhcpstart=192.168.76.9,tftp=$(CURDIR),bootfile=pxeboot.0
qemu-rom: kernel.rom
$(QEMU) $(QEMU_ARGS) --option-rom kernel.rom