ROSE/Makefile

58 lines
1.8 KiB
Makefile
Raw Normal View History

objects = entry.o kernel.o task.o handler.o interrupt.o v86.o print.o tss.o gdt.o\
paging.o fault.o tests.o kbd.o helper.o disk.o file.o fs.o dosfs/dosfs.o fs_dos.o\
progs.o hexedit.o textedit.o
2023-02-10 19:20:17 -06:00
CFLAGS = -target "i686-elf" -m32 -mgeneral-regs-only -ffreestanding\
-march=i686 -fno-stack-protector -Wno-int-conversion -nostdlib -c
LFLAGS = -Wl,--gc-sections -Wl,--print-gc-sections -m32 -nostartfiles -nostdlib
ifeq ($(OUTFILE),)
OUTFILE = virtdisk.bin
endif
ifeq ($(PARTSTART),)
PARTSTART = 2048
endif
PARTVBR=$(shell echo "$(PARTSTART) * (2^9)" | bc)
PARTVBRBOOT=$(shell echo "$(PARTVBR) + 90" | bc)
KERNSEC=$(shell echo "$(PARTSTART) + 4" | bc)
2023-02-10 19:20:17 -06:00
.PHONY: $(OUTFILE)
all: $(OUTFILE)
$(OUTFILE): boot.bin boot_partition.bin kernel.bin
# Copy system bootloader to boot sector, don't overwrite MBR
2023-02-10 19:20:17 -06:00
dd bs=400 count=1 conv=notrunc if=boot.bin of=$@
# Ensure partition VBR contains EB 5A
echo -n -e '\xeb\x5a' | dd bs=1 seek=$(PARTVBR) count=2 conv=notrunc of=$@
# Copy kernel bootloader to partition VBR
dd bs=1 count=420 seek=$(PARTVBRBOOT) conv=notrunc if=boot_partition.bin of=$@
# TODO Check that disk has enough reserved sectors,
# currently this will overwrite the disk if too few
# Write kernel beyond boot sector, maximum 64K (128 sectors)
dd bs=512 count=128 seek=$(KERNSEC) conv=notrunc if=kernel.bin of=$@
2023-02-10 19:20:17 -06:00
kernel.bin: out.o link.ld usermode.o
clang $(LFLAGS) -Wl,-M -Tlink.ld -ffreestanding -o $@ out.o usermode.o
usermode.o: usermode.bin
objcopy -I binary -O elf32-i386 -B i386 $< $@
2023-02-10 19:20:17 -06:00
%.bin: %.nasm
nasm -o $@ $<
2023-02-10 19:20:17 -06:00
out.o: $(objects)
clang $(LFLAGS) -e entry -r -o $@ $^
%.o: %.nasm
nasm -f elf32 -o $@ $<
%.o: %.c
2023-02-10 19:20:17 -06:00
clang $(CFLAGS) -ffunction-sections -fdata-sections -Os -o $@ $<
2022-09-14 16:50:44 -05:00
virtdisk:
cp virtdisk.bin.ex virtdisk.bin
clean:
rm -f $(objects) out.o kernel.bin boot.bin usermode.bin