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Makefile
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Makefile
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C_SOURCES = $(wildcard kernel/*.c drivers/*.c cpu/*.c libc/*.c)
HEADERS = $(wildcard kernel/*.h drivers/*.h cpu/*.h libc/*.h)
OBJ = ${C_SOURCES:.c=.o cpu/interrupt.o}
CC = compiler/bin/i386-elf-gcc
LD = compiler/bin/i386-elf-ld
os-image.bin: boot/bootsect.bin kernel.bin
cat $^ > os-image.bin
kernel.bin: boot/kernel_entry.o ${OBJ}
${LD} -o $@ -Ttext 0x1000 $^ --oformat binary
kernel.elf: boot/kernel_entry.o ${OBJ}
${LD} -o $@ -Ttext 0x1000 $^
run: os-image.bin
qemu-system-i386 -fda os-image.bin
debug: os-image.bin kernel.elf
qemu-system-i386 -s -fda os-image.bin -d guest_errors,int &
${GDB} -ex "target remote localhost:1234" -ex "symbol-file kernel.elf"
%.o: %.c ${HEADERS}
${CC} -ffreestanding -c $< -o $@
%.o: %.asm
nasm $< -f elf -o $@
%.bin: %.asm
nasm $< -f bin -o $@
clean:
rm -rf *.bin *.dis *.o os-image.bin *.elf
rm -rf kernel/*.o boot/*.bin drivers/*.o boot/*.o cpu/*.o libc/*.o