diff options
Diffstat (limited to 'x86-bare-metal/mbr-disk-lba/Makefile')
| -rw-r--r-- | x86-bare-metal/mbr-disk-lba/Makefile | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/x86-bare-metal/mbr-disk-lba/Makefile b/x86-bare-metal/mbr-disk-lba/Makefile new file mode 100644 index 0000000..f897450 --- /dev/null +++ b/x86-bare-metal/mbr-disk-lba/Makefile @@ -0,0 +1,40 @@ +O := BUILD + +all: dump_elf dump_bin + +$(O)/boot: $(O)/boot.elf + # MBR 512 bytes (sector 1 - lba 0) + objcopy -O binary $< $@ + # Craft 512 bytes (sector 2 - lba 1) + printf "aaaa" >> $@ + dd if=/dev/zero bs=1 count=508 >> $@ + # Craft 512 bytes (sector 3 - lba 2) + printf "bbbb" >> $@ + dd if=/dev/zero bs=1 count=508 >> $@ + +$(O)/boot.elf: mbr.ld $(O)/mbr.o $(O)/zmbr.o + ld -o $@ -nostdlib -T $^ + +$(O)/mbr.o: mbr.S | $(O) + gcc -m32 -c -o $@ -ffreestanding mbr.S + +$(O)/zmbr.o: zmbr.zig | $(O) + zig build-obj -fno-strip -femit-bin=$@ -target x86-freestanding-none -O ReleaseSmall $< + +clean: + $(RM) -r $(O) + +$(O): + mkdir -p $(O) + +dump_elf: $(O)/boot.elf + @#objdump -Mintel --disassemble=kmain --visualize-jumps=extended-color $< + readelf -W -l $< + size $< + size $< | awk '/$(notdir $<)/ { print "MBR utilization " $$1/512 "%" }' + +dump_bin: $(O)/boot + hexdump -C $< + +run: $(O)/boot + qemu-system-i386 -hda $< $(QEMU_ARGS) |