关于使用GCC编译STM32F1，makefile中引用.a库报错的问题

Ellsion_ST 提问时间：2021-5-13 11:04 / 未解决

问答
是否解决:	未解决

使用STcube生成了一个基于GCC便于的工程且编译完成。
现在想加入自己的.a库文件，进行如下操作：

1）在main函数中加入.a库中的头文件；
2）引用.a库中的函数；
3）在makefile中加入.a库链接 LIBS +=Inc/Test.a (我的Test.a放在工程的Inc文件夹下)。
编译报错，找不到.a库中对应的函数。
现在怀疑是makefile中.a库的引用方式不对，有使用过的伙伴能帮忙看看吗？

赞收藏评论4 发布时间：2021-5-13 11:04

4个回答

Ellsion_ST 回答时间：2021-5-13 11:07:08

##########################################################################################################################
# File automatically-generated by tool: [projectgenerator] version: [3.7.1] date: [Tue May 11 13:28:15 CST 2021]
##########################################################################################################################

# ------------------------------------------------
# Generic Makefile (based on gcc)
#
# ChangeLog :
# 2017-02-10 - Several enhancements + project update mode
# 2015-07-22 - first version
# ------------------------------------------------

######################################
# target
######################################
TARGET = F103

######################################
# building variables
######################################
# debug build?
DEBUG = 1
# optimization
OPT = -Og

#######################################
# paths
#######################################
# Build path
BUILD_DIR = build

######################################
# source
######################################
# C sources
C_SOURCES =  \
Src/main.c \
Src/stm32f1xx_it.c \
Src/stm32f1xx_hal_msp.c \
Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_gpio_ex.c \
Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_tim.c \
Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_tim_ex.c \
Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_uart.c \
Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal.c \
Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc.c \
Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc_ex.c \
Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_gpio.c \
Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_dma.c \
Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_cortex.c \
Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_pwr.c \
Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_flash.c \
Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_flash_ex.c \
Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_exti.c \
Src/system_stm32f1xx.c

# ASM sources
ASM_SOURCES =  \
startup_stm32f103xb.s

#######################################
# binaries
#######################################
PREFIX = arm-none-eabi-
# The gcc compiler bin path can be either defined in make command via GCC_PATH variable (> make GCC_PATH=xxx)
# either it can be added to the PATH environment variable.
ifdef GCC_PATH
CC = $(GCC_PATH)/$(PREFIX)gcc
AS = $(GCC_PATH)/$(PREFIX)gcc -x assembler-with-cpp
CP = $(GCC_PATH)/$(PREFIX)objcopy
SZ = $(GCC_PATH)/$(PREFIX)size
else
CC = $(PREFIX)gcc
AS = $(PREFIX)gcc -x assembler-with-cpp
CP = $(PREFIX)objcopy
SZ = $(PREFIX)size
endif
HEX = $(CP) -O ihex
BIN = $(CP) -O binary -S

#######################################
# CFLAGS
#######################################
# cpu
CPU = -mcpu=cortex-m3

# fpu
# NONE for Cortex-M0/M0+/M3

# float-abi

# mcu
MCU = $(CPU) -mthumb $(FPU) $(FLOAT-ABI)

# macros for gcc
# AS defines
AS_DEFS =

# C defines
C_DEFS =  \
-DUSE_HAL_DRIVER \
-DSTM32F103xB

# AS includes
AS_INCLUDES =

# C includes
C_INCLUDES =  \
-IInc \
-IDrivers/STM32F1xx_HAL_Driver/Inc \
-IDrivers/STM32F1xx_HAL_Driver/Inc/Legacy \
-IDrivers/CMSIS/Device/ST/STM32F1xx/Include \
-IDrivers/CMSIS/Include \
-IDrivers/CMSIS/Include

# compile gcc flags
ASFLAGS = $(MCU) $(AS_DEFS) $(AS_INCLUDES) $(OPT) -Wall -fdata-sections -ffunction-sections

CFLAGS = $(MCU) $(C_DEFS) $(C_INCLUDES) $(OPT) -Wall -fdata-sections -ffunction-sections

ifeq ($(DEBUG), 1)
CFLAGS += -g -gdwarf-2
endif

# Generate dependency information
CFLAGS += -MMD -MP -MF"$(@:%.o=%.d)"

#######################################
# LDFLAGS
#######################################
# link script
LDSCRIPT = STM32F103R8Tx_FLASH.ld

# libraries
LIBS = -lc -lm -lnosys
LIBS +=Inc/Test.a
#LIBS +=$(shell find ./ -name '*.a')
LIBDIR =
LDFLAGS = $(MCU) -specs=nano.specs -T$(LDSCRIPT) $(LIBDIR) $(LIBS) -Wl,-Map=$(BUILD_DIR)/$(TARGET).map,--cref -Wl,--gc-sections

# default action: build all
all: $(BUILD_DIR)/$(TARGET).elf $(BUILD_DIR)/$(TARGET).hex $(BUILD_DIR)/$(TARGET).bin

#######################################
# build the application
#######################################
# list of objects
OBJECTS = $(addprefix $(BUILD_DIR)/,$(notdir $(C_SOURCES:.c=.o)))
vpath %.c $(sort $(dir $(C_SOURCES)))
# list of ASM program objects
OBJECTS += $(addprefix $(BUILD_DIR)/,$(notdir $(ASM_SOURCES:.s=.o)))
vpath %.s $(sort $(dir $(ASM_SOURCES)))

$(BUILD_DIR)/%.o: %.c Makefile | $(BUILD_DIR)
$(CC) -c $(CFLAGS) -Wa,-a,-ad,-alms=$(BUILD_DIR)/$(notdir $(<:.c=.lst)) $< -o $@

$(BUILD_DIR)/%.o: %.s Makefile | $(BUILD_DIR)
$(AS) -c $(CFLAGS) $< -o $@

$(BUILD_DIR)/$(TARGET).elf: $(OBJECTS) Makefile
$(CC) $(OBJECTS) $(LDFLAGS) -o $@
$(SZ) $@

$(BUILD_DIR)/%.hex: $(BUILD_DIR)/%.elf | $(BUILD_DIR)
$(HEX) $< $@

$(BUILD_DIR)/%.bin: $(BUILD_DIR)/%.elf | $(BUILD_DIR)
$(BIN) $< $@

$(BUILD_DIR):
mkdir $@

#######################################
# clean up
#######################################
clean:
del *.d /s
del *.o /s
del *.lst/s

#######################################
# dependencies
#######################################
-include $(wildcard $(BUILD_DIR)/*.d)

# *** EOF ***

赞 0 评论

Dandjinh 回答时间：2021-5-14 09:07:00

# libraries
LIBS = -lc -lm -lnosys
LIBS += -l:Test.a
#LIBS +=$(shell find ./ -name '*.a')
LIBDIR = -LInc
LDFLAGS = $(MCU) -specs=nano.specs -T$(LDSCRIPT) $(LIBDIR) $(LIBS) -Wl,-Map=$(BUILD_DIR)/$(TARGET).map,--cref -Wl,--gc-sections

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