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我有以下 Makefile

CC=arm-none-eabi-gcc
AR=arm-none-eabi-ar

vpath %.c src src/peripherals
vpath %.o out

CFLAGS = -g -O2 -Wall -DUSE_STDPERIPH_DRIVER
CFLAGS += -mlittle-endian -mthumb -mcpu=cortex-m4 -mthumb-interwork
CFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16
CFLAGS += -ffreestanding -nostdlib
CFLAGS += -Iinc -Iinc/cmsis -Iinc/peripherals -Iinc/stm32f4xx

OUT_DIR=out

SRCS = misc.c stm32f4xx_adc.c stm32f4xx_can.c stm32f4xx_crc.c stm32f4xx_cryp.c stm32f4xx_cryp_aes.c \
    stm32f4xx_cryp_des.c stm32f4xx_cryp_tdes.c stm32f4xx_dac.c stm32f4xx_dbgmcu.c stm32f4xx_dcmi.c stm32f4xx_dma.c \
    stm32f4xx_exti.c stm32f4xx_flash.c stm32f4xx_fsmc.c stm32f4xx_gpio.c stm32f4xx_hash.c stm32f4xx_hash_md5.c \
    stm32f4xx_hash_sha1.c stm32f4xx_i2c.c stm32f4xx_iwdg.c stm32f4xx_pwr.c stm32f4xx_rcc.c stm32f4xx_rng.c \
    stm32f4xx_rtc.c stm32f4xx_sdio.c stm32f4xx_spi.c stm32f4xx_syscfg.c stm32f4xx_tim.c stm32f4xx_usart.c \
    stm32f4xx_wwdg.c

OBJS = $(SRCS:.c=.o)

.PHONY: libstm32f4.a

all: libstm32f4.a

%.o : %.c
    mkdir -p $(OUT_DIR)
    $(CC) $(CFLAGS) -c -o $(OUT_DIR)/$@ $^

libstm32f4.a: $(OBJS)
    $(AR) -r $(OUT_DIR)/$@ $(OUT_DIR)/$(OBJS)

clean:
    rm -rf $(OUT_DIR)

但是在运行 make 时，我的 .o 文件构建得很好，但是在调用 arm-none-eabi-ar 的时候，我弄得一团糟。

线

$(AR) -r $(OUT_DIR)/$@ $(OUT_DIR)/$(OBJS)

可能是我出错的地方，它的输出是：

arm-none-eabi-ar -r out/libstm32f4.a out/misc.o stm32f4xx_adc.o stm32f4xx_can.o stm32f4xx_crc.o stm32f4xx_cryp.o stm32f4xx_cryp_aes.o stm32f4xx_cryp_des.o stm32f4xx_cryp_tdes.o stm32f4xx_dac.o stm32f4xx_dbgmcu.o stm32f4xx_dcmi.o stm32f4xx_dma.o stm32f4xx_exti.o stm32f4xx_flash.o stm32f4xx_fsmc.o stm32f4xx_gpio.o stm32f4xx_hash.o stm32f4xx_hash_md5.o stm32f4xx_hash_sha1.o stm32f4xx_i2c.o stm32f4xx_iwdg.o stm32f4xx_pwr.o stm32f4xx_rcc.o stm32f4xx_rng.o stm32f4xx_rtc.o stm32f4xx_sdio.o stm32f4xx_spi.o stm32f4xx_syscfg.o stm32f4xx_tim.o stm32f4xx_usart.o stm32f4xx_wwdg.o
arm-none-eabi-ar: creating out/libstm32f4.a
arm-none-eabi-ar: stm32f4xx_adc.o: No such file or directory
make: *** [libstm32f4.a] Error 1

看这个时，out/libstm32f4.a 是正确的，但是所有 *.o 文件的第二个子句是完全错误的，只有 out/misc.o 以 out/ 文件夹为前缀，而不是其余的，导致一个错误？

如何修复我的 Makefile 以让它在 ./out/ 中查找 .o 文件？我在用吗

vpath %.o out

不正确，还是我在 Makefile 中的 arm-none-eabi-ar 指令不正确？

4

1 回答 1

1

简单地改变

$(AR) -r $(OUT_DIR)/$@ $(OUT_DIR)/$(OBJS)

到

$(AR) -r $(OUT_DIR)/$@ $(OUT_DIR)/*.o

呃！！！

于 2013-02-25T14:46:23.473 回答