stm32f030 aeabi_uidiv undefined reference

[alain cordat]

Posted on July 13, 2018 at 00:12

hi,

I try to compile a minimum program using stm driver libs. but I can't compile without error about '__aeabi_uidiv' from line 1083 of stm32f0xx_rcc.c : pllclk = (HSE_VALUE / prediv1factor) * pllmull;

I think the problem come from the linker and I have added path of the libgcc.a in ld flags in my makefile

LIBGCCARM = ${GCCARMPATH}/lib/gcc/arm-none-eabi/${GCCARMVERSION}/${GCCARMARCH}

LFLAGS = -L${LIBGCCARM} \

-lgcc \ -nostartfiles -T$(LKR_SCRIPT)

the linker find correctly the lib, but the error occurs always...

thanks for your help

[AvaTar]

Posted on July 13, 2018 at 10:12

AFAIK, the library should be the right one.

Perhaps you can check it with objdump or similar, to see if the symbol (function) is really there.

[alain cordat]

Posted on July 14, 2018 at 00:20

Hi,

I've found in libgcc several lines about __aeabi_uidiv:

line 68      00000000 g     F .text    00000000 .hidden __aeabi_uidivlines 2918, 2933, 2989...      00000000         *UND*    00000000 __aeabi_uidiv

an idea?

thanks

[AvaTar]

Posted on July 14, 2018 at 10:56

Looks like it's there.

Can you post the actual error message from the linker ?

[alain cordat]

Posted on July 14, 2018 at 23:12

Hi,

see here after the result of make,

alain@debian9-fuj:~/03_dev/10_wks_stm32f030/11_BootMinimalStCmsisLib $ make

/home/alain/02_bin/gcc-arm-none-eabi-7-2018-q2-update/bin/arm-none-eabi-gcc -I/home/alain/03_dev/10_wks_stm32f030/00_LIB/CMSIS/INC/ -I/home/alain/03_dev/10_wks_stm32f030/00_LIB/stm32f0-stdperiph/INC/ -c -L/home/alain/02_bin/gcc-arm-none-eabi-7-2018-q2-update/lib/gcc/arm-none-eabi/7.3.1 -lgcc -DSTM32F030X4 -fno-common -O0 -g -march=armv6-m -mcpu=cortex-m0 -mthumb -DUSE_STDPERIPH_DRIVER=1 -fno-builtin -ffreestanding -nostdlib -std=gnu11   main.c -o main.o/home/alain/02_bin/gcc-arm-none-eabi-7-2018-q2-update/bin/arm-none-eabi-gcc -I/home/alain/03_dev/10_wks_stm32f030/00_LIB/CMSIS/INC/ -I/home/alain/03_dev/10_wks_stm32f030/00_LIB/stm32f0-stdperiph/INC/ -c -L/home/alain/02_bin/gcc-arm-none-eabi-7-2018-q2-update/lib/gcc/arm-none-eabi/7.3.1 -lgcc -DSTM32F030X4 -fno-common -O0 -g -march=armv6-m -mcpu=cortex-m0 -mthumb -DUSE_STDPERIPH_DRIVER=1 -fno-builtin -ffreestanding -nostdlib -std=gnu11  /home/alain/03_dev/10_wks_stm32f030/00_LIB/stm32f0-stdperiph/SRC/stm32f0xx_rcc.c  -o stm32f0xx_rcc.o/home/alain/02_bin/gcc-arm-none-eabi-7-2018-q2-update/bin/arm-none-eabi-gcc -I/home/alain/03_dev/10_wks_stm32f030/00_LIB/CMSIS/INC/ -I/home/alain/03_dev/10_wks_stm32f030/00_LIB/stm32f0-stdperiph/INC/ -c -L/home/alain/02_bin/gcc-arm-none-eabi-7-2018-q2-update/lib/gcc/arm-none-eabi/7.3.1 -lgcc -DSTM32F030X4 -fno-common -O0 -g -march=armv6-m -mcpu=cortex-m0 -mthumb -DUSE_STDPERIPH_DRIVER=1 -fno-builtin -ffreestanding -nostdlib -std=gnu11  /home/alain/03_dev/10_wks_stm32f030/00_LIB/stm32f0-stdperiph/SRC/stm32f0xx_gpio.c -o stm32f0xx_gpio.o/home/alain/02_bin/gcc-arm-none-eabi-7-2018-q2-update/bin/arm-none-eabi-ld -L/home/alain/02_bin/gcc-arm-none-eabi-7-2018-q2-update/lib/gcc/arm-none-eabi/7.3.1 -lgcc -nostartfiles -Tstm32_minimal.ld  -o main.elf -I/home/alain/03_dev/10_wks_stm32f030/00_LIB/CMSIS/INC/ -I/home/alain/03_dev/10_wks_stm32f030/00_LIB/stm32f0-stdperiph/INC/ main.o  stm32f0xx_rcc.o stm32f0xx_gpio.o  stm32f0xx_rcc.o: In function `RCC_GetClocksFreq':/home/alain/03_dev/10_wks_stm32f030/00_LIB/stm32f0-stdperiph/SRC/stm32f0xx_rcc.c:1083: undefined reference to `__aeabi_uidiv'makefile:66 : la recette pour la cible « main.elf » a échouéemake: *** [main.elf] Erreur 1

I have try with other gcc version, install witdebian package with same error.

thanks

[AvaTar]

Posted on July 16, 2018 at 07:36

Does it work if you drop the '

-fno-builtin -ffreestanding -nostdlib

' flags ?

[alain cordat]

Posted on July 16, 2018 at 14:07

No change, same error...

[Tesla DeLorean]

Posted on July 16, 2018 at 14:50

Ignore for a second that this is a different processor, I don't have time to stand-up a CM0 example, look at the other options

This is how I compile for the H7

Compiling file: main.c

arm-none-eabi-gcc -c -mcpu=cortex-m7 -mthumb -mfpu=fpv5-d16 -mfloat-abi=hard -Os -ffunction-sections -fdata-sections -Wall -Wstrict-prototypes -Wextra -std=gnu89 -g -ggdb3 -fverbose-asm -Wa,-ahlms=out/main.lst  -DUSE_HAL_DRIVER  -DSTM32H743xx  -DUSE_STM32H743I_EVAL  -MD -MP -MF out/main.d -I.  -Iinc main.c -o out/main.o

This is how I link for the H7

arm-none-eabi-g++ -mcpu=cortex-m7 -mthumb -mfpu=fpv5-d16 -mfloat-abi=hard -TSTM32H743XIHx_FLASH.ld -g -Wl,-Map=out/demo.map,--cref,--no-warn-mismatch -Wl,--gc-sections -nostartfiles  out/startup_stm32h743xx.o out/main.o out/stm32h743i_eval.o out/stm32h7xx_hal.o out/stm32h7xx_hal_cortex.o out/stm32h7xx_hal_gpio.o out/stm32h7xx_hal_msp.o out/stm32h7xx_hal_rcc.o out/stm32h7xx_hal_rcc_ex.o out/stm32h7xx_hal_uart.o out/stm32h7xx_it.o out/syscalls.o out/system_stm32h7xx.o    -o out/demo.elf

[AvaTar]

Posted on July 16, 2018 at 15:20

This function is supposed to be in libgcc.

Checked a local Atollic test installation (gcc-based), and several libs contain references, but none implementation. It comes with a libc, not a libgcc, though.

[alain cordat]

Hi I (re)install arm-none-eabi toolchain -> same result

I try the same type of compil for stm32F103 (minimal boot projet, same toolchain), it's ok, no error. so the toolchain is correct for f103...

I install eclipse +arm mcu pluggin, using the same toolchain. I try a minimal projet, blinky led, it's ok.

...