# To specify cross compiler prefix, use CROSS_PREFIX= | |
# $ make CROSS_PREFIX=x86_64-linux-gnu- | |
.PHONY: all clean | |
all: a-b-bootblock.h | |
a-b-bootblock.h: x86.bootsect | |
echo "$$__note" > header.tmp | |
xxd -i $< | sed -e 's/.*int.*//' >> header.tmp | |
mv header.tmp $@ | |
x86.bootsect: x86.boot | |
dd if=$< of=$@ bs=256 count=2 skip=124 | |
x86.boot: x86.o | |
$(CROSS_PREFIX)objcopy -O binary $< $@ | |
x86.o: a-b-bootblock.S | |
$(CROSS_PREFIX)gcc -m32 -march=i486 -c $< -o $@ | |
clean: | |
@rm -rf *.boot *.o *.bootsect |