STM32CubeIDE doesn't give error when compile mode is set to Release

[Liandri]

Hello,

I have a C++ project on STM32CubeIDE. I noticed that IDE doesn't show any errors in Release mode when I intentionally make error. I see this behavior on files with .hpp and .cpp extensions. On the other hand, I see that IDE can generate errors on console when I make errors in files with .c extensions like main.c. There is no problem when build configuration is set to Debug. I have one ext file, one .hpp file and one .cpp file. I expect to see error I put in this .cpp file.

These are the differences between Debug and Release configurations in Project->Properties->C/C++ Build->Settings section:

MCU GCC Assembler
Debug-> Command: gcc
               All options: -mcpu=cortex-m4 -g3 -DDEBUG -c -x assembler-with-cpp --specs=nano.specs                                                            -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb
Release-> Command: gcc
                  All options: -mcpu=cortex-m4 -c -x  assembler-with-cpp --specs=nano.specs                                                                                  -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb

MCU GCC Assembler->Debugging
Debug-> Debug level: Maximum (-g3)
Release-> Debug level: None

MCU GCC Assembler->Preprocessor
Debug-> Define symbols (-D): DEBUG
Release-> Define symbols (-D): none

MCU GCC Compiler->Debugging
Debug-> Debug level: Maximum (-g3)
Release-> Debug level: None

MCU GCC Compiler->Preprocessor (This is same but I wanted to show defined symbols in both mode)
Debug-> Define symbols (-D): DEBUG
                                                 USE_FULL_ASSERT
                                                 USE_HAL_DRIVER
                                                 STM32G474xx
                                                 LITTLEENDIAN
Release-> Define symbols (-D): DEBUG
                                                   USE_FULL_ASSERT
                                                   USE_HAL_DRIVER
                                                   STM32G474xx
                                                   LITTLEENDIAN

MCU GCC Compiler->Optimisation
Debug-> Optimisation level: None(-O0)
Release-> Optimise for size: (-Os)

MCU G++ Compiler->Debugging
Debug-> Debug level: Maximum (-g3)
Release-> Debug level: None

MCU G++ Compiler->Preprocessor (This is same but I wanted to show defined symbols in both mode)
Debug-> Define symbols (-D): DEBUG
                                                 USE_FULL_ASSERT
                                                 USE_HAL_DRIVER
                                                 STM32G474xx
                                                 LITTLEENDIAN
Release-> Define symbols (-D): DEBUG
                                                   USE_FULL_ASSERT
                                                   USE_HAL_DRIVER
                                                   STM32G474xx
                                                   LITTLEENDIAN

MCU G++ Compiler->Optimisation
Debug-> Optimisation level: None(-O0)
Release-> Optimise for size: (-Os)

I will be very appriciated if you could help me. Thank you in advance. 

Best Regards

[Liandri]

This is Console Output of Release:

arm-none-eabi-gcc "../Middlewares/Third_Party/FreeRTOS/Source/portable/MemMang/heap_4.c" -mcpu=cortex-m4 -std=gnu11 -DDEBUG -DUSE_FULL_ASSERT -DUSE_HAL_DRIVER -DSTM32G474xx -DLITTLEENDIAN -c -I../Core/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32G4xx/Include -I../Drivers/CMSIS/Include -I../include -I../ext/file2/include -I../Middlewares/Third_Party/FreeRTOS/Source/include -I../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 -I../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F -Os -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Middlewares/Third_Party/FreeRTOS/Source/portable/MemMang/heap_4.d" -MT"Middlewares/Third_Party/FreeRTOS/Source/portable/MemMang/heap_4.o" --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -o "Middlewares/Third_Party/FreeRTOS/Source/portable/MemMang/heap_4.o"
arm-none-eabi-gcc "../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F/port.c" -mcpu=cortex-m4 -std=gnu11 -DDEBUG -DUSE_FULL_ASSERT -DUSE_HAL_DRIVER -DSTM32G474xx -DLITTLEENDIAN -c -I../Core/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32G4xx/Include -I../Drivers/CMSIS/Include -I../include -I../ext/file2/include -I../Middlewares/Third_Party/FreeRTOS/Source/include -I../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 -I../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F -Os -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F/port.d" -MT"Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F/port.o" --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -o "Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F/port.o"
arm-none-eabi-gcc "../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2/cmsis_os2.c" -mcpu=cortex-m4 -std=gnu11 -DDEBUG -DUSE_FULL_ASSERT -DUSE_HAL_DRIVER -DSTM32G474xx -DLITTLEENDIAN -c -I../Core/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32G4xx/Include -I../Drivers/CMSIS/Include -I../include -I../ext/file2/include -I../Middlewares/Third_Party/FreeRTOS/Source/include -I../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 -I../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F -Os -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2/cmsis_os2.d" -MT"Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2/cmsis_os2.o" --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -o "Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2/cmsis_os2.o"
arm-none-eabi-gcc "../Middlewares/Third_Party/FreeRTOS/Source/croutine.c" -mcpu=cortex-m4 -std=gnu11 -DDEBUG -DUSE_FULL_ASSERT -DUSE_HAL_DRIVER -DSTM32G474xx -DLITTLEENDIAN -c -I../Core/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32G4xx/Include -I../Drivers/CMSIS/Include -I../include -I../ext/file2/include -I../Middlewares/Third_Party/FreeRTOS/Source/include -I../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 -I../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F -Os -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Middlewares/Third_Party/FreeRTOS/Source/croutine.d" -MT"Middlewares/Third_Party/FreeRTOS/Source/croutine.o" --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -o "Middlewares/Third_Party/FreeRTOS/Source/croutine.o"
arm-none-eabi-gcc "../Middlewares/Third_Party/FreeRTOS/Source/event_groups.c" -mcpu=cortex-m4 -std=gnu11 -DDEBUG -DUSE_FULL_ASSERT -DUSE_HAL_DRIVER -DSTM32G474xx -DLITTLEENDIAN -c -I../Core/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32G4xx/Include -I../Drivers/CMSIS/Include -I../include -I../ext/file2/include -I../Middlewares/Third_Party/FreeRTOS/Source/include -I../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 -I../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F -Os -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Middlewares/Third_Party/FreeRTOS/Source/event_groups.d" -MT"Middlewares/Third_Party/FreeRTOS/Source/event_groups.o" --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -o "Middlewares/Third_Party/FreeRTOS/Source/event_groups.o"
arm-none-eabi-gcc "../Middlewares/Third_Party/FreeRTOS/Source/list.c" -mcpu=cortex-m4 -std=gnu11 -DDEBUG -DUSE_FULL_ASSERT -DUSE_HAL_DRIVER -DSTM32G474xx -DLITTLEENDIAN -c -I../Core/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32G4xx/Include -I../Drivers/CMSIS/Include -I../include -I../ext/file2/include -I../Middlewares/Third_Party/FreeRTOS/Source/include -I../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 -I../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F -Os -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Middlewares/Third_Party/FreeRTOS/Source/list.d" -MT"Middlewares/Third_Party/FreeRTOS/Source/list.o" --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -o "Middlewares/Third_Party/FreeRTOS/Source/list.o"
arm-none-eabi-gcc "../Middlewares/Third_Party/FreeRTOS/Source/queue.c" -mcpu=cortex-m4 -std=gnu11 -DDEBUG -DUSE_FULL_ASSERT -DUSE_HAL_DRIVER -DSTM32G474xx -DLITTLEENDIAN -c -I../Core/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32G4xx/Include -I../Drivers/CMSIS/Include -I../include -I../ext/file2/include -I../Middlewares/Third_Party/FreeRTOS/Source/include -I../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 -I../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F -Os -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Middlewares/Third_Party/FreeRTOS/Source/queue.d" -MT"Middlewares/Third_Party/FreeRTOS/Source/queue.o" --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -o "Middlewares/Third_Party/FreeRTOS/Source/queue.o"
arm-none-eabi-gcc "../Middlewares/Third_Party/FreeRTOS/Source/stream_buffer.c" -mcpu=cortex-m4 -std=gnu11 -DDEBUG -DUSE_FULL_ASSERT -DUSE_HAL_DRIVER -DSTM32G474xx -DLITTLEENDIAN -c -I../Core/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32G4xx/Include -I../Drivers/CMSIS/Include -I../include -I../ext/file2/include -I../Middlewares/Third_Party/FreeRTOS/Source/include -I../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 -I../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F -Os -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Middlewares/Third_Party/FreeRTOS/Source/stream_buffer.d" -MT"Middlewares/Third_Party/FreeRTOS/Source/stream_buffer.o" --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -o "Middlewares/Third_Party/FreeRTOS/Source/stream_buffer.o"
arm-none-eabi-gcc "../Middlewares/Third_Party/FreeRTOS/Source/tasks.c" -mcpu=cortex-m4 -std=gnu11 -DDEBUG -DUSE_FULL_ASSERT -DUSE_HAL_DRIVER -DSTM32G474xx -DLITTLEENDIAN -c -I../Core/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32G4xx/Include -I../Drivers/CMSIS/Include -I../include -I../ext/file2/include -I../Middlewares/Third_Party/FreeRTOS/Source/include -I../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 -I../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F -Os -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Middlewares/Third_Party/FreeRTOS/Source/tasks.d" -MT"Middlewares/Third_Party/FreeRTOS/Source/tasks.o" --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -o "Middlewares/Third_Party/FreeRTOS/Source/tasks.o"
arm-none-eabi-gcc "../Middlewares/Third_Party/FreeRTOS/Source/timers.c" -mcpu=cortex-m4 -std=gnu11 -DDEBUG -DUSE_FULL_ASSERT -DUSE_HAL_DRIVER -DSTM32G474xx -DLITTLEENDIAN -c -I../Core/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32G4xx/Include -I../Drivers/CMSIS/Include -I../include -I../ext/file2/include -I../Middlewares/Third_Party/FreeRTOS/Source/include -I../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 -I../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F -Os -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Middlewares/Third_Party/FreeRTOS/Source/timers.d" -MT"Middlewares/Third_Party/FreeRTOS/Source/timers.o" --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -o "Middlewares/Third_Party/FreeRTOS/Source/timers.o"
arm-none-eabi-gcc "../Drivers/STM32G4xx_HAL_Driver/Src/stm32g4xx_hal.c" -mcpu=cortex-m4 -std=gnu11 -DDEBUG -DUSE_FULL_ASSERT -DUSE_HAL_DRIVER -DSTM32G474xx -DLITTLEENDIAN -c -I../Core/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32G4xx/Include -I../Drivers/CMSIS/Include -I../include -I../ext/file2/include -I../Middlewares/Third_Party/FreeRTOS/Source/include -I../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 -I../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F -Os -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Drivers/STM32G4xx_HAL_Driver/Src/stm32g4xx_hal.d" -MT"Drivers/STM32G4xx_HAL_Driver/Src/stm32g4xx_hal.o" --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -o "Drivers/STM32G4xx_HAL_Driver/Src/stm32g4xx_hal.o"
arm-none-eabi-gcc "../Drivers/STM32G4xx_HAL_Driver/Src/stm32g4xx_hal_adc.c" -mcpu=cortex-m4 -std=gnu11 -DDEBUG -DUSE_FULL_ASSERT -DUSE_HAL_DRIVER -DSTM32G474xx -DLITTLEENDIAN -c -I../Core/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32G4xx/Include -I../Drivers/CMSIS/Include -I../include -I../ext/file2/include -I../Middlewares/Third_Party/FreeRTOS/Source/include -I../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 -I../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F -Os -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Drivers/STM32G4xx_HAL_Driver/Src/stm32g4xx_hal_adc.d" -MT"Drivers/STM32G4xx_HAL_Driver/Src/stm32g4xx_hal_adc.o" --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -o "Drivers/STM32G4xx_HAL_Driver/Src/stm32g4xx_hal_adc.o"
arm-none-eabi-gcc "../Drivers/STM32G4xx_HAL_Driver/Src/stm32g4xx_hal_adc_ex.c" -mcpu=cortex-m4 -std=gnu11 -DDEBUG -DUSE_FULL_ASSERT -DUSE_HAL_DRIVER -DSTM32G474xx -DLITTLEENDIAN -c -I../Core/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32G4xx/Include -I../Drivers/CMSIS/Include -I../include -I../ext/file2/include -I../Middlewares/Third_Party/FreeRTOS/Source/include -I../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 -I../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F -Os -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Drivers/STM32G4xx_HAL_Driver/Src/stm32g4xx_hal_adc_ex.d" -MT"Drivers/STM32G4xx_HAL_Driver/Src/stm32g4xx_hal_adc_ex.o" --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -o "Drivers/STM32G4xx_HAL_Driver/Src/stm32g4xx_hal_adc_ex.o"
arm-none-eabi-gcc "../Drivers/STM32G4xx_HAL_Driver/Src/stm32g4xx_hal_cortex.c" -mcpu=cortex-m4 -std=gnu11 -DDEBUG -DUSE_FULL_ASSERT -DUSE_HAL_DRIVER -DSTM32G474xx -DLITTLEENDIAN -c -I../Core/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32G4xx/Include -I../Drivers/CMSIS/Include -I../include -I../ext/file2/include -I../Middlewares/Third_Party/FreeRTOS/Source/include -I../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 -I../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F -Os -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Drivers/STM32G4xx_HAL_Driver/Src/stm32g4xx_hal_cortex.d" -MT"Drivers/STM32G4xx_HAL_Driver/Src/stm32g4xx_hal_cortex.o" --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -o "Drivers/STM32G4xx_HAL_Driver/Src/stm32g4xx_hal_cortex.o"

arm-none-eabi-gcc "../Drivers/STM32G4xx_HAL_Driver/Src/stm32g4xx_ll_adc.c" -mcpu=cortex-m4 -std=gnu11 -DDEBUG -DUSE_FULL_ASSERT -DUSE_HAL_DRIVER -DSTM32G474xx -DLITTLEENDIAN -c -I../Core/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32G4xx/Include -I../Drivers/CMSIS/Include -I../include -I../ext/file2/include -I../Middlewares/Third_Party/FreeRTOS/Source/include -I../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 -I../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F -Os -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Drivers/STM32G4xx_HAL_Driver/Src/stm32g4xx_ll_adc.d" -MT"Drivers/STM32G4xx_HAL_Driver/Src/stm32g4xx_ll_adc.o" --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -o "Drivers/STM32G4xx_HAL_Driver/Src/stm32g4xx_ll_adc.o"
arm-none-eabi-gcc -mcpu=cortex-m4 -DRELEASE -c -x assembler-with-cpp -MMD -MP -MF"Core/Startup/startup_stm32g474qetx.d" -MT"Core/Startup/startup_stm32g474qetx.o" --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -o "Core/Startup/startup_stm32g474qetx.o" "../Core/Startup/startup_stm32g474qetx.s"
arm-none-eabi-gcc "../Core/Src/app_freertos.c" -mcpu=cortex-m4 -std=gnu11 -DDEBUG -DUSE_FULL_ASSERT -DUSE_HAL_DRIVER -DSTM32G474xx -DLITTLEENDIAN -c -I../Core/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32G4xx/Include -I../Drivers/CMSIS/Include -I../include -I../ext/file2/include -I../Middlewares/Third_Party/FreeRTOS/Source/include -I../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 -I../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F -Os -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Core/Src/app_freertos.d" -MT"Core/Src/app_freertos.o" --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -o "Core/Src/app_freertos.o"
arm-none-eabi-gcc "../Core/Src/main.c" -mcpu=cortex-m4 -std=gnu11 -DDEBUG -DUSE_FULL_ASSERT -DUSE_HAL_DRIVER -DSTM32G474xx -DLITTLEENDIAN -c -I../Core/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32G4xx/Include -I../Drivers/CMSIS/Include -I../include -I../ext/file2/include -I../Middlewares/Third_Party/FreeRTOS/Source/include -I../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 -I../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F -Os -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Core/Src/main.d" -MT"Core/Src/main.o" --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -o "Core/Src/main.o"
arm-none-eabi-gcc "../Core/Src/stm32g4xx_hal_msp.c" -mcpu=cortex-m4 -std=gnu11 -DDEBUG -DUSE_FULL_ASSERT -DUSE_HAL_DRIVER -DSTM32G474xx -DLITTLEENDIAN -c -I../Core/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32G4xx/Include -I../Drivers/CMSIS/Include -I../include -I../ext/file2/include -I../Middlewares/Third_Party/FreeRTOS/Source/include -I../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 -I../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F -Os -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Core/Src/stm32g4xx_hal_msp.d" -MT"Core/Src/stm32g4xx_hal_msp.o" --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -o "Core/Src/stm32g4xx_hal_msp.o"
arm-none-eabi-gcc "../Core/Src/stm32g4xx_it.c" -mcpu=cortex-m4 -std=gnu11 -DDEBUG -DUSE_FULL_ASSERT -DUSE_HAL_DRIVER -DSTM32G474xx -DLITTLEENDIAN -c -I../Core/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32G4xx/Include -I../Drivers/CMSIS/Include -I../include -I../ext/file2/include -I../Middlewares/Third_Party/FreeRTOS/Source/include -I../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 -I../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F -Os -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Core/Src/stm32g4xx_it.d" -MT"Core/Src/stm32g4xx_it.o" --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -o "Core/Src/stm32g4xx_it.o"
arm-none-eabi-gcc "../Core/Src/syscalls.c" -mcpu=cortex-m4 -std=gnu11 -DDEBUG -DUSE_FULL_ASSERT -DUSE_HAL_DRIVER -DSTM32G474xx -DLITTLEENDIAN -c -I../Core/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32G4xx/Include -I../Drivers/CMSIS/Include -I../include -I../ext/file2/include -I../Middlewares/Third_Party/FreeRTOS/Source/include -I../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 -I../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F -Os -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Core/Src/syscalls.d" -MT"Core/Src/syscalls.o" --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -o "Core/Src/syscalls.o"
arm-none-eabi-gcc "../Core/Src/sysmem.c" -mcpu=cortex-m4 -std=gnu11 -DDEBUG -DUSE_FULL_ASSERT -DUSE_HAL_DRIVER -DSTM32G474xx -DLITTLEENDIAN -c -I../Core/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32G4xx/Include -I../Drivers/CMSIS/Include -I../include -I../ext/file2/include -I../Middlewares/Third_Party/FreeRTOS/Source/include -I../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 -I../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F -Os -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Core/Src/sysmem.d" -MT"Core/Src/sysmem.o" --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -o "Core/Src/sysmem.o"
arm-none-eabi-gcc "../Core/Src/system_stm32g4xx.c" -mcpu=cortex-m4 -std=gnu11 -DDEBUG -DUSE_FULL_ASSERT -DUSE_HAL_DRIVER -DSTM32G474xx -DLITTLEENDIAN -c -I../Core/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc -I../Drivers/STM32G4xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32G4xx/Include -I../Drivers/CMSIS/Include -I../include -I../ext/file2/include -I../Middlewares/Third_Party/FreeRTOS/Source/include -I../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 -I../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM4F -Os -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Core/Src/system_stm32g4xx.d" -MT"Core/Src/system_stm32g4xx.o" --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -o "Core/Src/system_stm32g4xx.o"
arm-none-eabi-g++ -o "myProject.elf" @"objects.list"   -mcpu=cortex-m4 -T"C:\Desktop\project\STM32G474QETX_FLASH.ld" --specs=nosys.specs -Wl,-Map="myProject.map" -Wl,--gc-sections -static --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -Wl,--start-group -lc -lm -lstdc++ -lsupc++ -Wl,--end-group
Finished building target: myProject.elf

[Liandri]

And this is Console Output of Debug. I had to share it as .txt file due to character length limit:

[Liandri]

I can see that the line starts with "arm-none-eabi-g++" doesn't appear on Release build console output Maybe IDE doesn't know I have .hpp and .cpp file in Release mode.

[TDK · Accepted solution]

Doesn't look like it's compiling a *.cpp file, so it doesn't see the error. And because there aren't any errors during linking, doesn't seem like it needs anything in the *.cpp either.

Add the source folder to project properties -> C/C++ General -> Paths and Symbols -> Source Location.