Makefile

   1 export CROSS_COMPILE = i686-elf-
   2 export AS = yasm
   3 export CC = gcc
   4 export QEMU = qemu-system-i386 -monitor stdio
   5 export GIT_REV = $(shell git describe --long HEAD)
   6 export REAL_CC = $(CROSS_COMPILE)$(CC)
   7 MAKEFLAGS += -rR
   8
   9 default: kernel/kernel.elf bootloader
  10 all: default boot/x86/disk.img
  11 run: all
  12         $(QEMU) boot/x86/disk.img
  13 debug: all
  14         $(QEMU) -s -S boot/x86/disk.img
  15
  16 kernel/kernel.elf:
  17         $(MAKE) -C kernel
  18 bootloader:
  19         $(MAKE) -C boot/x86
  20
  21 boot/x86/disk.img: bootloader boot/x86/disk.dump kernel/kernel.elf
  22         truncate -s1G boot/x86/disk.img
  23         sfdisk boot/x86/disk.img < boot/x86/disk.dump
  24         mkfs.fat -F 32 --offset 2048 boot/x86/disk.img
  25         dd if=boot/x86/mbr of=boot/x86/disk.img bs=440 count=1 conv=notrunc
  26         dd if=boot/x86/vbr-fat32 of=boot/x86/disk.img bs=1 skip=90 seek=1048666 conv=notrunc
  27         mcopy -i boot/x86/disk.img@@1M boot/x86/stage3/LOADER.BIN ::.
  28         mcopy -i boot/x86/disk.img@@1M kernel/kernel.elf ::./KERNEL.ELF
  29
  30 clean:
  31         $(MAKE) -C boot/x86 clean
  32         $(MAKE) -C kernel clean
  33
  34 # Even though kernel.elf is a real target, it's considered phony so that the
  35 # kernel Makefile is always run. We don't check is the kernel binary up-to-date
  36 # here because we want to be more recursive.
  37 .PHONY: default all clean run debug bootloader kernel/kernel.elf