STM32CubeMX is generating Makefiles with repeated C_SOURCES

Question

I'm just starting to learn STM32 development (on Ubuntu 16.04).

I've used STM32CubeMX to build a Makefile-based project.

The generated Makefiles have repeated entries in C_SOURCES which (obviously) cause linking to fail because of duplicated symbols.

C_SOURCES =  \
Src/stm32f0xx_it.c \
Src/stm32f0xx_hal_msp.c \
Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_rtc.c \
Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_tim_ex.c \
Src/stm32f0xx_it.c \
Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_rcc_ex.c \
Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_tim.c \
Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_uart_ex.c \
Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_i2s.c \
Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_pcd.c \
Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_dma.c \
Src/usbd_conf.c \
Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_pwr_ex.c \
Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_cortex.c \
Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_i2c_ex.c \
Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_flash.c \
Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.c \
Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal.c \
Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_pcd_ex.c \
Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_pwr.c \
Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_rtc_ex.c \
Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_uart.c \
Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_rcc.c \
Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.c \
Src/usb_device.c \
Src/usbd_desc.c \
Src/stm32f0xx_hal_msp.c \
Middlewares/ST/STM32_USB_Device_Library/Class/HID/Src/usbd_hid.c \
Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_cec.c \
Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_crc.c \
Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_gpio.c \
Src/usbd_desc.c \
Src/usbd_conf.c \
Src/system_stm32f0xx.c \
Src/usb_device.c \
Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.c \
Src/main.c \
Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_crc_ex.c \
Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_i2c.c \
Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_flash_ex.c \
Src/main.c

Src/main.c, Src/stm32f0xx_hal_msp.c, Src/stm32f0xx_it.c, Src/usbd_conf.c, Src/usbd_desc.c and Src/usb_device.c are each in this list twice.

If I remove the duplicates from the Makefile, the generated project builds.

Am I doing something wrong, or is this a bug in STM32CubeMX?

As a hint, you can do a $(sort $(C_SOURCES)) at its points of use (instead of manually throwing out the multiple occurrences) to get rid of duplicates. — Vroomfondel
Note this is the same issue as: *** missing separator. Stop. In the generated makefile. In my case it's because of a duplicate line -IDrivers/CMSIS/Include — Owl

Bence Kaulics Bence Kaulics · Accepted Answer · 2018-11-03T08:12:39

This is a bug and it has been already reported at ST Generated Makefile has duplicated entries for some source files.

The correction should be available in CubeMX 4.26.0 version.

STM32CubeMX is generating Makefiles with repeated C_SOURCES

1 Answers