tinyriscv/sdk/bsp/bsp.mk

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RISCV_TOOLS_PATH := /opt/riscv32/bin
RISCV_TOOLS_PREFIX := riscv32-unknown-elf-
RISCV_GCC := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)gcc)
RISCV_AS := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)as)
RISCV_GXX := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)g++)
RISCV_OBJDUMP := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)objdump)
RISCV_GDB := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)gdb)
RISCV_AR := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)ar)
RISCV_OBJCOPY := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)objcopy)
RISCV_READELF := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)readelf)
BIN_TO_MEM := $(BSP_DIR)/../../tools/BinToMem.py
.PHONY: all
all: $(TARGET)
ASM_SRCS += $(BSP_DIR)/crt0.S
ASM_SRCS += $(BSP_DIR)/trap_entry.S
C_SRCS += $(BSP_DIR)/lib/utils.c
C_SRCS += $(BSP_DIR)/lib/xprintf.c
C_SRCS += $(BSP_DIR)/lib/uart.c
C_SRCS += $(BSP_DIR)/lib/sim_ctrl.c
C_SRCS += $(BSP_DIR)/lib/timer.c
C_SRCS += $(BSP_DIR)/lib/gpio.c
C_SRCS += $(BSP_DIR)/lib/rvic.c
C_SRCS += $(BSP_DIR)/lib/i2c.c
C_SRCS += $(BSP_DIR)/lib/spi.c
C_SRCS += $(BSP_DIR)/lib/pinmux.c
LINKER_SCRIPT := $(BSP_DIR)/link.lds
INCLUDES += -I$(BSP_DIR)
LDFLAGS += -T $(LINKER_SCRIPT) -nostartfiles -Wl,--gc-sections -Wl,--check-sections
ASM_OBJS := $(ASM_SRCS:.S=.o)
C_OBJS := $(C_SRCS:.c=.o)
LINK_OBJS += $(ASM_OBJS) $(C_OBJS)
LINK_DEPS += $(LINKER_SCRIPT)
CLEAN_OBJS += $(TARGET) $(LINK_OBJS) $(TARGET).dump $(TARGET).bin $(TARGET).hex $(TARGET).mem
CFLAGS += -march=$(RISCV_ARCH)
CFLAGS += -mabi=$(RISCV_ABI)
CFLAGS += -mcmodel=$(RISCV_MCMODEL) -ffunction-sections -fdata-sections -fno-builtin-printf -fno-builtin-malloc
$(TARGET): $(LINK_OBJS) $(LINK_DEPS) Makefile
$(RISCV_GCC) $(CFLAGS) $(INCLUDES) $(LINK_OBJS) -o $@ $(LDFLAGS)
$(RISCV_OBJCOPY) -O binary $@ $@.bin
$(RISCV_OBJDUMP) --disassemble-all $@ > $@.dump
$(BIN_TO_MEM) $@.bin $@.mem
$(ASM_OBJS): %.o: %.S
$(RISCV_GCC) $(CFLAGS) $(INCLUDES) -c -o $@ $<
$(C_OBJS): %.o: %.c
$(RISCV_GCC) $(CFLAGS) $(INCLUDES) -c -o $@ $<
.PHONY: clean
clean:
rm -f $(CLEAN_OBJS)