48 lines
1.0 KiB
Makefile
48 lines
1.0 KiB
Makefile
# RISCV environment variable must be set
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CC=$(RISCV)/bin/riscv64-unknown-elf-gcc
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OBJCOPY=$(RISCV)/bin/riscv64-unknown-elf-objcopy
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CFLAGS=-march=rv64imac -mcmodel=medany -O2 -std=gnu11 -Wall -nostartfiles
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CFLAGS+= -fno-common -g -DENTROPY=0 -mabi=lp64 -DNONSMP_HART=0
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CFLAGS+= -I $(BOOTROM_DIR)/include -I.
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LFLAGS=-static -nostdlib -L $(BOOTROM_DIR)/linker -T sdboot.elf.lds
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dtb := $(BUILD_DIR)/$(CONFIG).dtb
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$(dtb): $(BUILD_DIR)/$(CONFIG).dts
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dtc -I dts -O dtb -o $@ $<
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.PHONY: dtb
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dtb: $(dtb)
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elf := $(BUILD_DIR)/sdboot.elf
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$(elf): $(dtb) head.S kprintf.c sd.c
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$(CC) $(CFLAGS) -DDEVICE_TREE='"$(dtb)"' $(LFLAGS) -o $@ head.S sd.c kprintf.c
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.PHONY: elf
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elf: $(elf)
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bin := $(BUILD_DIR)/sdboot.bin
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$(bin): $(elf)
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$(OBJCOPY) -O binary $< $@
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.PHONY: bin
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bin: $(bin)
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hex := $(BUILD_DIR)/sdboot.hex
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$(hex): $(bin)
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od -t x4 -An -w4 -v $< > $@
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.PHONY: hex
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hex: $(hex)
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romgen := $(BUILD_DIR)/rom.v
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$(romgen): $(hex)
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$(rocketchip_dir)/scripts/vlsi_rom_gen $(ROMCONF) $< > $@
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.PHONY: romgen
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romgen: $(romgen)
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.PHONY: clean
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clean::
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rm -rf $(hex) $(elf)
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