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implicit declaration of function 'xTaskCreateRestricted', 'vPortResetPrivilege'

Posted by dnadler on December 14, 2016

Hi Guys - A minor nit but I know you try hard to make all your code compile clean. I get warnings about two implicit declarations (everything else compiles without warnings). Details below. Thanks as always, Best Regards, Dave

~~~ Invoking: Cross ARM C Compiler arm-none-eabi-gcc -mcpu=cortex-m4 -mthumb -mfloat-abi=hard -mfpu=fpv4-sp-d16 -O0 -fmessage-length=0 -fsigned-char -ffunction-sections -fdata-sections -Wall -Wextra -g3 -D"CPUMK64FN1M0VDC12" -DUSBSTACKFREERTOS -DHSBBUILDWPA -I../source -I../CMSIS -I../GenerateduCsetup -I../board -I../drivers -I../freertos/Source/include -I../freertos/Source/portable/GCC/ARMCM4F -I../startup -I../utilities -I"E:/Cap/MFW2/MFW2firmware/USB/include" -I"E:/Cap/MFW2/MFW2firmware/USB/device/include" -I"E:/Cap/MFW2/MFW2firmware/USB/device/class" -I"E:/Cap/MFW2/MFW2firmware/USB/osa" -I"E:/Cap/MFW2/MFW2firmware/USB/device/class/cdc" -I"E:/Cap/MFW2/MFW2firmware/USB/device/source" -I"E:/Cap/MFW2/MFW2firmware/USB/device/source/khci" -std=gnu99 -Wno-unused-parameter -MMD -MP -MF"FreeRTOS/Source/portable/Common/mpuwrappers.d" -MT"FreeRTOS/Source/portable/Common/mpuwrappers.o" -c -o "FreeRTOS/Source/portable/Common/mpuwrappers.o" "../FreeRTOS/Source/portable/Common/mpuwrappers.c" ../FreeRTOS/Source/portable/Common/mpuwrappers.c: In function 'MPUxTaskCreateRestricted': ../FreeRTOS/Source/portable/Common/mpuwrappers.c:104:2: warning: implicit declaration of function 'xTaskCreateRestricted' [-Wimplicit-function-declaration] xReturn = xTaskCreateRestricted( pxTaskDefinition, pxCreatedTask ); ^ ../FreeRTOS/Source/portable/Common/mpu_wrappers.c:105:2: warning: implicit declaration of function 'vPortResetPrivilege' [-Wimplicit-function-declaration] vPortResetPrivilege( xRunningPrivileged ); ^

~~~


implicit declaration of function 'xTaskCreateRestricted', 'vPortResetPrivilege'

Posted by rtel on December 15, 2016

Hi Dave - thanks for taking the time to report this.

I've just compared the head revision of mpuwrappers.c with the revision from the FreeRTOS V9.0.0 release and it looks like this has already been picked up as MPUxTaskCreateRestricted() is now only compiled if configSUPPORTDYNAMICALLOCATION is set to 1.


implicit declaration of function 'xTaskCreateRestricted', 'vPortResetPrivilege'

Posted by dnadler on December 16, 2016

Is the updated code available? I only find 9.0.0 on sourceforge (sorry if I'm looking in the wrong place)... Thanks, Best Regards, Dave


implicit declaration of function 'xTaskCreateRestricted', 'vPortResetPrivilege'

Posted by rtel on December 16, 2016

Did you look in the SVN repository - also on SourceForge?

https://sourceforge.net/p/freertos/code/HEAD/tree/trunk/FreeRTOS/Source/portable/Common/mpu_wrappers.c


implicit declaration of function 'xTaskCreateRestricted', 'vPortResetPrivilege'

Posted by dcrocker on January 2, 2018

I am getting these same warnings, compiling freshly-downloaded FreeRTOS 10.0.0 with target GCC/ARM_CM4F. Shouldn't these prototypes be declared in task.h?

Edit: looks like xTaskCreateRestricted does get declared in task.h, but only if portUSINGMPUWRAPPERS=1 is defined. Where is that macro supposed to be defined?


implicit declaration of function 'xTaskCreateRestricted', 'vPortResetPrivilege'

Posted by rtel on January 2, 2018

Is this also the case in FreeRTOS V10.0.1? If so, please describe how to replicate the problem (e.g. which port are you using, what are configSUPPORTDYNAMICALLOCATION and configSUPPORTSTATICALLOCATION set to, and any other relevant configuration items).


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