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https://github.com/cccriscv/mini-riscv-os.git
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47 lines
1.0 KiB
Makefile
47 lines
1.0 KiB
Makefile
CC = riscv64-unknown-elf-gcc
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CFLAGS = -nostdlib -fno-builtin -mcmodel=medany -march=rv32ima -mabi=ilp32 -g -Wall -w
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GDB = riscv64-unknown-elf-gdb
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OBJ = \
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start.s \
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sys.s \
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lib.c \
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timer.c \
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task.c \
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os.c \
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user.c \
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trap.c \
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lock.c \
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plic.c \
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virtio.c \
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string.c
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QEMU = qemu-system-riscv32
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QFLAGS = -nographic -smp 4 -machine virt -bios none
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QFLAGS += -drive if=none,format=raw,file=hdd.dsk,id=x0
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QFLAGS += -device virtio-blk-device,drive=x0,bus=virtio-mmio-bus.0
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OBJDUMP = riscv64-unknown-elf-objdump
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all: clean os.elf hdd.dsk qemu
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os.elf: $(OBJ)
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$(CC) $(CFLAGS) -T os.ld -o os.elf $^
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qemu: $(TARGET)
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@qemu-system-riscv32 -M ? | grep virt >/dev/null || exit
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@echo "Press Ctrl-A and then X to exit QEMU"
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$(QEMU) $(QFLAGS) -kernel os.elf
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clean:
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rm -f *.elf *.img *.dsk
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hdd.dsk:
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dd if=/dev/urandom of=hdd.dsk bs=1M count=32
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.PHONY : debug
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debug: all
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@echo "Press Ctrl-C and then input 'quit' to exit GDB and QEMU"
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@echo "-------------------------------------------------------"
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@${QEMU} ${QFLAGS} -kernel os.elf -s -S &
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@${GDB} os.elf -q -x ./gdbinit
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