Makefile

   1 AS = yasm
   2 LD = i686-elf-ld
   3 CC = i686-elf-gcc
   4
   5 all: boot.img
   6
   7 boot.img: boot kernel/kernel.bin
   8         cat boot kernel/kernel.bin > $@
   9         truncate -s1440K $@
  10
  11 boot: boot.s
  12         $(AS) -f bin boot.s -o $@
  13
  14 kernel/kernel.bin: kernel/entry.o kernel/kernel.o
  15         $(LD) -o $@ -Ttext 0x1000 kernel/entry.o kernel/kernel.o --oformat=binary
  16
  17 kernel/entry.o: kernel/entry.s
  18         $(AS) -f elf kernel/entry.s -o $@
  19
  20 kernel/kernel.o: kernel/kernel.c
  21         $(CC) -o $@ -ffreestanding -c kernel/kernel.c
  22
  23 clean:
  24         rm boot kernel/kernel.bin kernel/entry.o kernel/kernel.o boot.img
  25
  26 .PHONY: all clean