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https://github.com/isometimes/rpi4-osdev
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20 lines
629 B
Makefile
20 lines
629 B
Makefile
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CFILES = $(wildcard *.c)
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OFILES = $(CFILES:.c=.o)
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GCCFLAGS = -Wall -O2 -ffreestanding -nostdinc -nostdlib -nostartfiles
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GCCPATH = ../../gcc-arm-9.2-2019.12-x86_64-aarch64-none-elf/bin
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all: clean kernel8.img
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boot.o: boot.S
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$(GCCPATH)/aarch64-none-elf-gcc $(GCCFLAGS) -c boot.S -o boot.o
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%.o: %.c
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$(GCCPATH)/aarch64-none-elf-gcc $(GCCFLAGS) -c $< -o $@
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kernel8.img: boot.o $(OFILES)
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$(GCCPATH)/aarch64-none-elf-ld -nostdlib -nostartfiles boot.o $(OFILES) -T link.ld -o kernel8.elf
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$(GCCPATH)/aarch64-none-elf-objcopy -O binary kernel8.elf kernel8.img
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clean:
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/bin/rm kernel8.elf *.o *.img > /dev/null 2> /dev/null || true
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