SummerCart64/sw/riscv/Makefile

49 lines
1.4 KiB
Makefile

TOOLCHAIN = riscv32-unknown-elf-
CC = $(TOOLCHAIN)gcc
AS = $(TOOLCHAIN)as
OBJCOPY = $(TOOLCHAIN)objcopy
OBJDUMP = $(TOOLCHAIN)objdump
SIZE = $(TOOLCHAIN)size
FLAGS = -mabi=ilp32 -march=rv32i
CFLAGS = -Os -Wall -ffunction-sections -fdata-sections -ffreestanding -MMD -MP
LDFLAGS = -nostartfiles -Wl,--gc-sections
SRC_DIR = src
BUILD_DIR = build
SRC_FILES = startup.S process.c usb.c cfg.c dma.c joybus.c rtc.c i2c.c flashram.c uart.c flash.c
SRCS = $(addprefix $(SRC_DIR)/, $(SRC_FILES))
OBJS = $(addprefix $(BUILD_DIR)/, $(notdir $(patsubst %,%.o,$(SRCS))))
DEPS = $(OBJS:.o=.d)
VPATH = $(SRC_DIR)
$(@info $(shell mkdir -p ./$(BUILD_DIR) &> /dev/null))
all: $(BUILD_DIR)/governor.hex
$(BUILD_DIR)/%.c.o: %.c
$(CC) $(FLAGS) $(CFLAGS) $(USER_FLAGS) -c $< -o $@
$(BUILD_DIR)/%.S.o: %.S
$(AS) $(FLAGS) $(ASFLAGS) -c $< -o $@
$(BUILD_DIR)/governor.hex: $(OBJS) SC64.ld
$(CC) $(FLAGS) $(LDFLAGS) -TSC64.ld $(OBJS) -o $(BUILD_DIR)/governor.elf
$(OBJDUMP) -D $(BUILD_DIR)/governor.elf > $(BUILD_DIR)/governor.map
$(OBJCOPY) -O binary $(BUILD_DIR)/governor.elf $(BUILD_DIR)/governor.bin
$(OBJCOPY) -I binary -O ihex $(BUILD_DIR)/governor.bin $@
@echo 'Size of modules:'
@$(SIZE) -B -t --common $(OBJS)
@echo 'Size of governor:'
@$(SIZE) -B $(BUILD_DIR)/governor.elf
clean:
rm -rf ./$(BUILD_DIR)/*
.PHONY: all clean
-include $(DEPS)