CROSS_COMPILE=riscv32-unknown-elf-
CC=$(CROSS_COMPILE)gcc
LD=$(CROSS_COMPILE)gcc
AR=$(CROSS_COMPILE)ar
AS=$(CROSS_COMPILE)gcc

LSCRIPT=RISCV/env_Eclipse/GD32VF103xB.lds
#LSCRIPT=target.ld

LDFLAGS+=-T $(LSCRIPT) -Wl,-gc-sections -Wl,-Map=image.map -ffreestanding -nostartfiles -fdata-sections -ffunction-sections


CFLAGS+=-fno-builtin-printf -DUSE_M_TIME -g -march=rv32imac -mabi=ilp32 -mcmodel=medlow -fmessage-length=0
#CFLAGS+=--specs=nosys.specs
CFLAGS+=--specs=nano.specs
CFLAGS+=-Os


CFLAGS+=-DGD32VF103C_START
CFLAGS+=-IGD32VF103 -IGD32VF103/Include 
CFLAGS+=-I.. -I../include
CFLAGS+=-IRISCV/drivers


OBJS= \
	  main.o \
	  start.o \
	  entry.o \
	  n200_func.o \
	  handlers.o \
    system_gd32vf103.o \
	gd32vf103_adc.o \
	gd32vf103_bkp.o \
	gd32vf103_can.o \
	gd32vf103_crc.o \
	gd32vf103_dac.o \
	gd32vf103_dbg.o \
	gd32vf103_dma.o \
	gd32vf103_eclic.o \
	gd32vf103_exmc.o \
	gd32vf103_exti.o \
	gd32vf103_fmc.o \
	gd32vf103_fwdgt.o \
	gd32vf103_gpio.o \
	gd32vf103_i2c.o \
	gd32vf103_pmu.o \
	gd32vf103_rcu.o \
	gd32vf103_rtc.o \
	gd32vf103_spi.o \
	gd32vf103_timer.o \
	gd32vf103_usart.o \
	gd32vf103_wwdgt.o  \
	ff.o \
	ffsystem.o \
	ffunicode.o \
	tf_card.o \
	lcd.o \
	systick.o


all: image.bin

image.bin: image.elf
	$(CROSS_COMPILE)objcopy -O binary $< $@


vpath %.c ./GD32VF103/Source
vpath %.c ./GD32VF103
vpath %.c ./RISCV/drivers
vpath %.c ./RISCV/env_Eclipse
vpath %.c ./fatfs
vpath %.c ./lcd


image.elf: $(OBJS)
	@echo [LD] $@
	@$(LD) $(CFLAGS) $(LDFLAGS) $(^) -o $(@) 


start.o: ./RISCV/env_Eclipse/start.S
	@echo [AS] $@
	@$(AS) $(CFLAGS) -c -o $(@) $(^)

entry.o: ./RISCV/env_Eclipse/entry.S
	@echo [AS] $@
	@$(AS) $(CFLAGS) -c -o $(@) $(^)

%.o: %.c
	@echo [CC] $@
	@$(CC) -o $@ -c $^ $(CFLAGS)

clean:
	@echo [CLEAN]
	@rm -f $(OBJS)
	@rm -f *.bin *.elf