Cannot Link MC Lib into STM32CubeIDE project.

[kvresto]

Hi Everyone.

I have created a STM32CubeIDE project for the L476 Nucleo.

I'm having huge issues trying to link the "MotionMC_CM4F_wc32_ot.a" library into my project.

The images are 1) of my file tree structure, and 2) the statement entered into the linker settings

trying to copy exactly as possible from the STM32 eCompass example. 

Below is the error I'm receiving, I don't like pasting such long strings in these types of questions

but I'm lost to a solution.

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: error: MotionMagCal.elf uses VFP register arguments, F:\emb\ARM\ST\CubeIde\L4\L476\IMU\MagCal\MotionMagCal\Middlewares\ST\STM32_MotionMC_Library\Lib\MotionMC_CM4F_wc32_ot.a(motion_mc.o) does not

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: failed to merge target specific data of file F:\emb\ARM\ST\CubeIde\L4\L476\IMU\MagCal\MotionMagCal\Middlewares\ST\STM32_MotionMC_Library\Lib\MotionMC_CM4F_wc32_ot.a(motion_mc.o)

Can someone please help? Why is this such a problem?

The example project provided with MEMS1 work fine, always has? why?

[Miroslav BATEK]

The libraries in MEMS1 package are compiled with softfp compiler option. In STM32CubeIDE you have to select Mix HW/SW implementation in C/C++ Build -> Settings -> Tool Settings -> Floating-Point ABI.

[kvresto]

Hi Miroslav, thanks for responding.

I completed the settings as you suggested, and included an image, but I'm getting even more errors this time.

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: error: Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_tim_ex.o uses VFP register arguments, MotionMagCal.elf does not

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: failed to merge target specific data of file Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_tim_ex.o

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: error: Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_uart.o uses VFP register arguments, MotionMagCal.elf does not

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: failed to merge target specific data of file Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_uart.o

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: error: Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_uart_ex.o uses VFP register arguments, MotionMagCal.elf does not

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: failed to merge target specific data of file Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_uart_ex.o

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: error: Src/app_x-cube-mems1.o uses VFP register arguments, MotionMagCal.elf does not

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: failed to merge target specific data of file Src/app_x-cube-mems1.o

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: error: Src/com.o uses VFP register arguments, MotionMagCal.elf does not

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: failed to merge target specific data of file Src/com.o

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: error: Src/demo_serial.o uses VFP register arguments, MotionMagCal.elf does not

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: failed to merge target specific data of file Src/demo_serial.o

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: error: Src/iks01a2_mems_control.o uses VFP register arguments, MotionMagCal.elf does not

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: failed to merge target specific data of file Src/iks01a2_mems_control.o

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: error: Src/iks01a2_mems_control_ex.o uses VFP register arguments, MotionMagCal.elf does not

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: failed to merge target specific data of file Src/iks01a2_mems_control_ex.o

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: error: Src/main.o uses VFP register arguments, MotionMagCal.elf does not

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: failed to merge target specific data of file Src/main.o

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: error: Src/motion_mc_manager.o uses VFP register arguments, MotionMagCal.elf does not

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: failed to merge target specific data of file Src/motion_mc_manager.o

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: error: Src/serial_protocol.o uses VFP register arguments, MotionMagCal.elf does not

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: failed to merge target specific data of file Src/serial_protocol.o

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: error: Src/stm32l4xx_hal_msp.o uses VFP register arguments, MotionMagCal.elf does not

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: failed to merge target specific data of file Src/stm32l4xx_hal_msp.o

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: error: Src/stm32l4xx_it.o uses VFP register arguments, MotionMagCal.elf does not

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: failed to merge target specific data of file Src/stm32l4xx_it.o

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: error: Src/stm32l4xx_nucleo.o uses VFP register arguments, MotionMagCal.elf does not

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: failed to merge target specific data of file Src/stm32l4xx_nucleo.o

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: error: Src/stm32l4xx_nucleo_bus.o uses VFP register arguments, MotionMagCal.elf does not

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: failed to merge target specific data of file Src/stm32l4xx_nucleo_bus.o

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: error: Src/syscalls.o uses VFP register arguments, MotionMagCal.elf does not

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: failed to merge target specific data of file Src/syscalls.o

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: error: Src/sysmem.o uses VFP register arguments, MotionMagCal.elf does not

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: failed to merge target specific data of file Src/sysmem.o

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: error: Src/system_stm32l4xx.o uses VFP register arguments, MotionMagCal.elf does not

c:\st\stm32cubeide_1.3.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.7-2018-q2-update.win32_1.4.0.202007081208\tools\arm-none-eabi\bin\ld.exe: failed to merge target specific data of file Src/system_stm32l4xx.o

collect2.exe: error: ld returned 1 exit status

make: *** [makefile:55: MotionMagCal.elf] Error 1

In the image it shows the two check boxes at the bottom selected, but I've tried all combinations.

[Miroslav BATEK]

It seems like different settings for different files in your project. Can you please double check it?

If you don't find the solution, you can share with me your project.

[kvresto]

Hi Miroslav.

I think you mean to double check I made the correct changes. I went back and compared all changes

I made to be the same as the settings in the MEMS1 example project.

After that I had the idea of cleaning the project and deleting the debug directory. I rebuilt the project and it worked.

Selecting "Mix HW/SW implementation" in C/C++ Build -> Settings -> Tool Settings -> Floating-Point ABI

fixed my issue.

cheers.

[Miroslav BATEK]

OK, good to hear the issue is fixed.