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BIN2C = ../../../../src/helper/bin2char.sh
CROSS_COMPILE ?= riscv64-unknown-elf-
RISCV_CC=$(CROSS_COMPILE)gcc
RISCV_OBJCOPY=$(CROSS_COMPILE)objcopy
RISCV_OBJDUMP=$(CROSS_COMPILE)objdump
CFLAGS = -nostdlib -nostartfiles -Wall -Werror -Os -fPIC -Wunused-result -g
RISCV32_CFLAGS = -march=rv32e -mabi=ilp32e $(CFLAGS)
RISCV64_CFLAGS = -march=rv64i -mabi=lp64 $(CFLAGS)
all: riscv32_fespi.inc riscv64_fespi.inc
.PHONY: clean
# .c -> .o
riscv32_%.o: riscv_%.c
$(RISCV_CC) -c $(RISCV32_CFLAGS) $^ -o $@
riscv64_%.o: riscv_%.c
$(RISCV_CC) -c $(RISCV64_CFLAGS) $< -o $@
# .S -> .o
riscv32_%.o: riscv_%.S
$(RISCV_CC) -c $(RISCV32_CFLAGS) $^ -o $@
riscv64_%.o: riscv_%.S
$(RISCV_CC) -c $(RISCV64_CFLAGS) $^ -o $@
# .o -> .elf
riscv32_%.elf: riscv32_%.o riscv32_wrapper.o
$(RISCV_CC) -T riscv.lds $(RISCV32_CFLAGS) $^ -o $@
riscv64_%.elf: riscv64_%.o riscv64_wrapper.o
$(RISCV_CC) -T riscv.lds $(RISCV64_CFLAGS) $^ -o $@
# .elf -> .bin
%.bin: %.elf
$(RISCV_OBJCOPY) -Obinary $< $@
# .bin -> .inc
%.inc: %.bin
$(BIN2C) < $< > $@
# utility
%.lst: %.elf
$(RISCV_OBJDUMP) -S $< > $@
clean:
-rm -f *.elf *.o *.lst *.bin *.inc
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