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# FoolOS Makefile
#
IMAGE_SIZE=4096
all: FoolOS.img
FoolOS.img: mbr.bin kernel.bin fill.bin
cat $^ | head -c $(IMAGE_SIZE) > $@
fill.bin: boot/fill.asm
nasm -f bin $^ -o $@
mbr.bin: boot/mbr.asm
nasm -f bin $^ -o $@
kernel_entry.o: boot/kernel_entry.asm
nasm -f elf $^ -o $@
kernel.o: kernel/kernel.c
gcc -ffreestanding -m32 -o $@ -c $^ -fno-asynchronous-unwind-tables
kernel.bin: kernel_entry.o kernel.o
ld -o $@ -Ttext 0x1000 --oformat binary -melf_i386 $^
clean:
rm *.bin *.o *.img
.PHONY: all clean
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