build STM32L071CBT project with STM32CubeIDE 1.2.1 failed(solve)

Update, choose "gnu11" not c11 for language standard

Hello,

I'm new bird on STM32CubeIDE,

create a new STM32L071CBTX project from STM32CubeIDE

first to configuration our pin definition and another resource than to generation code

and try build the project will get the below error message

but on another STM32F429/CortexM4 project the compiling passed and run well on chip.

I check the IDE with GNU Tools for STM( 7-2018q2 update)

---------------------------------------------------------------------------------------------------------------------

arm-none-eabi-gcc ../Core/Src/sysmem.c -mcpu=cortex-m0plus -std=c11 -g3 -DUSE_HAL_DRIVER -DDEBUG -DSTM32L071xx -c -I../Drivers/CMSIS/Include -I../Core/Inc -I../Drivers/STM32L0xx_HAL_Driver/Inc -I../Drivers/CMSIS/Device/ST/STM32L0xx/Include -I../Drivers/STM32L0xx_HAL_Driver/Inc/Legacy -O0 -ffunction-sections -fdata-sections -Wall -fstack-usage --specs=nano.specs -mfloat-abi=soft -mthumb -o Core/Src/sysmem.o

arm-none-eabi-gcc ../Drivers/STM32L0xx_HAL_Driver/Src/stm32l0xx_hal_tim_ex.c -mcpu=cortex-m0plus -std=c11 -g3 -DUSE_HAL_DRIVER -DDEBUG -DSTM32L071xx -c -I../Drivers/CMSIS/Include -I../Core/Inc -I../Drivers/STM32L0xx_HAL_Driver/Inc -I../Drivers/CMSIS/Device/ST/STM32L0xx/Include -I../Drivers/STM32L0xx_HAL_Driver/Inc/Legacy -O0 -ffunction-sections -fdata-sections -Wall -fstack-usage --specs=nano.specs -mfloat-abi=soft -mthumb -o Drivers/STM32L0xx_HAL_Driver/Src/stm32l0xx_hal_tim_ex.o

../Core/Src/syscalls.c:66:27: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'asm'

 register char * stack_ptr asm("sp");

                          ^~~

Info: Parallel threads used: 8

12:45:27 Build Failed. 1 errors, 0 warnings. (took 4s.78ms)

../Core/Src/sysmem.c:55:27: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'asm'

 register char * stack_ptr asm("sp");

                          ^~~

../Core/Src/sysmem.c: In function '_sbrk':

../Core/Src/sysmem.c:65:18: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'asm'

 extern char end asm("end");

                 ^~~

../Core/Src/sysmem.c:65:18: warning: implicit declaration of function 'asm' [-Wimplicit-function-declaration]

../Core/Src/sysmem.c:70:15: error: 'end' undeclared (first use in this function)

  heap_end = &end;

              ^~~

../Core/Src/sysmem.c:70:15: note: each undeclared identifier is reported only once for each function it appears in

../Core/Src/sysmem.c:73:24: error: 'stack_ptr' undeclared (first use in this function)

 if (heap_end + incr > stack_ptr)