Makefile

   1 default_target: vm
   2 .PHONY: vm clean
   3
   4 stage1/boot.bin: stage1/boot.asm
   5         nasm -DSTAGE2SIZE=$$(du -b stage2/target/x86-loadnothing/release/stage2 | cut -f1) -f bin -o stage1/boot.bin stage1/boot.asm
   6
   7 magic.bin:
   8         echo -en "\x55\xAA" > magic.bin
   9
  10 stage2/target/x86-loadnothing/release/stage2: stage2/src/main.rs
  11         cd stage2 && cargo rustc --release -- --emit=obj
  12         ld -m elf_i386 -o stage2/target/x86-loadnothing/release/stage2.bin --oformat binary stage2/target/x86-loadnothing/release/stage2 -Ttext=0x7e00
  13         mv stage2/target/x86-loadnothing/release/stage2.bin stage2/target/x86-loadnothing/release/stage2
  14
  15 nothing.img: magic.bin stage2/target/x86-loadnothing/release/stage2 stage1/boot.bin
  16         dd if=/dev/zero of=nothing.img bs=32M count=1
  17         parted -s nothing.img mklabel msdos
  18         parted -s -a optimal nothing.img mkpart primary fat32 16MiB 100%
  19         doas losetup /dev/loop1 nothing.img
  20         doas mkfs.fat /dev/loop1p1
  21         doas losetup -d /dev/loop1
  22         dd if=stage1/boot.bin of=nothing.img bs=1 count=446 conv=notrunc
  23         dd if=magic.bin of=nothing.img bs=1 seek=510 count=2 conv=notrunc
  24         dd if=stage2/target/x86-loadnothing/release/stage2 of=nothing.img bs=512 seek=1 conv=notrunc
  25
  26 vm: nothing.img
  27         qemu-system-x86_64 -hda nothing.img
  28
  29 clean:
  30         rm -f magic.bin stage1/boot.bin nothing.img
  31         cd stage2 && cargo clean