# Compiling the cmake\_example in FreeRTOS-Kernel (MINGW64)? **URL:** \ **Category:** Kernel\ **Created:** [February 11, 2025, 2:25pm UTC](https://forums.freertos.org/t/compiling-the-cmake-example-in-freertos-kernel-mingw64/22530 "2025-02-11T14:25:05Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![sdbbs](https://d3iykfbgfh8zhg.cloudfront.net/user_avatar/forums.freertos.org/sdbbs/32/2535_2.png) [@sdbbs](https://forums.freertos.org/u/sdbbs)\ **Post date:** [February 11, 2025, 2:25pm UTC](https://forums.freertos.org/t/compiling-the-cmake-example-in-freertos-kernel-mingw64/22530/1 "2025-02-11T14:25:05Z")
I’m using MINGW64 bash shell; note that in the path, I have several gcc executables: ```none $ which gcc /mingw64/bin/gcc $ cygpath -m $(which gcc) C:/msys64/mingw64/bin/gcc.exe $ ls -1 C:/msys64/mingw64/bin/*gcc.exe C:/msys64/mingw64/bin/arm-none-eabi-gcc.exe* C:/msys64/mingw64/bin/gcc.exe* C:/msys64/mingw64/bin/x86_64-w64-mingw32-gcc.exe* $ gcc --version gcc.exe (Rev2, Built by MSYS2 project) 14.2.0 $ arm-none-eabi-gcc --version arm-none-eabi-gcc.exe (GCC) 13.3.0 ``` So, I’ve got FreeRTOS-Kernel here: ```none $ (cd C:/src/FreeRTOS-Kernel/; git status -uno) HEAD detached at V11.1.0 nothing to commit (use -u to show untracked files) ``` and can see there is an example at `$FREERTOS_KERNEL_PATH/examples/cmake_example`; so I wanted to try and build it, like this: ```none $ cd C:/src/FreeRTOS-Kernel/examples/cmake_example $ mkdir build && cd build $ C:/Program\ Files/CMake/bin/cmake.exe .. -DCMAKE_BUILD_TYPE=Debug -G "MSYS Makefiles" -- The C compiler identification is GNU 14.2.0 -- The CXX compiler identification is GNU 14.2.0 -- Check for working C compiler: C:/msys64/mingw64/bin/gcc.exe -- Check for working C compiler: C:/msys64/mingw64/bin/gcc.exe - works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Detecting C compile features -- Detecting C compile features - done -- Check for working CXX compiler: C:/msys64/mingw64/bin/g++.exe -- Check for working CXX compiler: C:/msys64/mingw64/bin/g++.exe - works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Detecting CXX compile features -- Detecting CXX compile features - done -- Configuring done -- Generating done -- Build files have been written to: C:/src/FreeRTOS-Kernel/examples/cmake_example/build $ make Scanning dependencies of target freertos_kernel_port [8%] Building C object FreeRTOS-Kernel/portable/CMakeFiles/freertos_kernel_port.dir/template/port.c.obj [8%] Built target freertos_kernel_port Scanning dependencies of target freertos_kernel [16%] Building C object FreeRTOS-Kernel/CMakeFiles/freertos_kernel.dir/croutine.c.obj [25%] Building C object FreeRTOS-Kernel/CMakeFiles/freertos_kernel.dir/event_groups.c.obj C:/src/FreeRTOS-Kernel/event_groups.c: In function 'xEventGroupSync': C:/src/FreeRTOS-Kernel/event_groups.c:197:9: error: integer constant is too large for 'unsigned long' type [-Werror=long-long] 197 | configASSERT( ( uxBitsToWaitFor & eventEVENT_BITS_CONTROL_BYTES ) == 0 ); | ^ ~~~~~~~~~~~ C:/src/FreeRTOS-Kernel/event_groups.c:231:21: error: integer constant is too large for 'unsigned long' type [-Werror=long-long] 231 | vTaskPlaceOnUnorderedEventList( &( pxEventBits->xTasksWaitingForBits ), ( uxBitsToWaitFor | eventCLEAR_EVENTS_ON_EXIT_BIT | eventWAIT_FOR_ALL_BITS ), xTicksToWait ); | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ C:/src/FreeRTOS-Kernel/event_groups.c:231:21: error: integer constant is too large for 'unsigned long' type [-Werror=long-long] C:/src/FreeRTOS-Kernel/event_groups.c:267:13: error: integer constant is too large for 'unsigned long' type [-Werror=long-long] 267 | if( ( uxReturn & eventUNBLOCKED_DUE_TO_BIT_SET ) == ( EventBits_t ) 0 ) | ^~ C:/src/FreeRTOS-Kernel/event_groups.c:298:13: error: integer constant is too large for 'unsigned long' type [-Werror=long-long] 298 | uxReturn &= ~eventEVENT_BITS_CONTROL_BYTES; | ^ ~~~~~~~ C:/src/FreeRTOS-Kernel/event_groups.c: In function 'xEventGroupWaitBits': C:/src/FreeRTOS-Kernel/event_groups.c:328:9: error: integer constant is too large for 'unsigned long' type [-Werror=long-long] 328 | configASSERT( ( uxBitsToWaitFor & eventEVENT_BITS_CONTROL_BYTES ) == 0 ); | ^ ~~~~~~~~~~~ C:/src/FreeRTOS-Kernel/event_groups.c:375:21: error: integer constant is too large for 'unsigned long' type [-Werror=long-long] 375 | uxControlBits |= eventCLEAR_EVENTS_ON_EXIT_BIT; | ^ ~~~~~~~~~~~~ C:/src/FreeRTOS-Kernel/event_groups.c:384:21: error: integer constant is too large for 'unsigned long' type [-Werror=long-long] 384 | uxControlBits |= eventWAIT_FOR_ALL_BITS; | ^ ~~~~~~~~~~~~ C:/src/FreeRTOS-Kernel/event_groups.c:423:13: error: integer constant is too large for 'unsigned long' type [-Werror=long-long] 423 | if( ( uxReturn & eventUNBLOCKED_DUE_TO_BIT_SET ) == ( EventBits_t ) 0 ) | ^~ C:/src/FreeRTOS-Kernel/event_groups.c:458:13: error: integer constant is too large for 'unsigned long' type [-Werror=long-long] 458 | uxReturn &= ~eventEVENT_BITS_CONTROL_BYTES; | ^ ~~~~~~~ C:/src/FreeRTOS-Kernel/event_groups.c: In function 'xEventGroupClearBits': C:/src/FreeRTOS-Kernel/event_groups.c:483:9: error: integer constant is too large for 'unsigned long' type [-Werror=long-long] 483 | configASSERT( ( uxBitsToClear & eventEVENT_BITS_CONTROL_BYTES ) == 0 ); | ^ ~~~~~~~~~~~ C:/src/FreeRTOS-Kernel/event_groups.c: In function 'xEventGroupSetBits': C:/src/FreeRTOS-Kernel/event_groups.c:563:9: error: integer constant is too large for 'unsigned long' type [-Werror=long-long] 563 | configASSERT( ( uxBitsToSet & eventEVENT_BITS_CONTROL_BYTES ) == 0 ); | ^ ~~~~~~~~~~~ C:/src/FreeRTOS-Kernel/event_groups.c:584:17: error: integer constant is too large for 'unsigned long' type [-Werror=long-long] 584 | uxControlBits = uxBitsWaitedFor & eventEVENT_BITS_CONTROL_BYTES; | ^ ~~~~~~~~~~~~ C:/src/FreeRTOS-Kernel/event_groups.c:585:17: error: integer constant is too large for 'unsigned long' type [-Werror=long-long] 585 | uxBitsWaitedFor &= ~eventEVENT_BITS_CONTROL_BYTES; | ^ ~~~~~~~~~~~~~~ C:/src/FreeRTOS-Kernel/event_groups.c:587:17: error: integer constant is too large for 'unsigned long' type [-Werror=long-long] 587 | if( ( uxControlBits & eventWAIT_FOR_ALL_BITS ) == ( EventBits_t ) 0 ) | ^~ C:/src/FreeRTOS-Kernel/event_groups.c:612:21: error: integer constant is too large for 'unsigned long' type [-Werror=long-long] 612 | if( ( uxControlBits & eventCLEAR_EVENTS_ON_EXIT_BIT ) != ( EventBits_t ) 0 ) | ^~ C:/src/FreeRTOS-Kernel/event_groups.c:626:21: error: integer constant is too large for 'unsigned long' type [-Werror=long-long] 626 | vTaskRemoveFromUnorderedEventList( pxListItem, pxEventBits->uxEventBits | eventUNBLOCKED_DUE_TO_BIT_SET ); | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ C:/src/FreeRTOS-Kernel/event_groups.c: In function 'vEventGroupDelete': C:/src/FreeRTOS-Kernel/event_groups.c:667:17: error: integer constant is too large for 'unsigned long' type [-Werror=long-long] 667 | vTaskRemoveFromUnorderedEventList( pxTasksWaitingForBits->xListEnd.pxNext, eventUNBLOCKED_DUE_TO_BIT_SET ); | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1.exe: all warnings being treated as errors make[2]: *** [FreeRTOS-Kernel/CMakeFiles/freertos_kernel.dir/build.make:98: FreeRTOS-Kernel/CMakeFiles/freertos_kernel.dir/event_groups.c.obj] Error 1 make[1]: *** [CMakeFiles/Makefile2:185: FreeRTOS-Kernel/CMakeFiles/freertos_kernel.dir/all] Error 2 make: *** [Makefile:104: all] Error 2 ``` So, in this case, CMake picked up the “plain”/“Windows” GCC compiler, the CMake setup/configuration passed, however `make` fails compilation, mostly with a “integer constant is too large for ‘unsigned long’ type” error. I thought this was caused by using the “Windows” GCC compiler; so I managed to “coax” CMake to instead use the ARM GCC compiles by adding this to `cmake_example/CMakeLists.txt`: ```cmake cmake_minimum_required(VERSION 3.15) find_program(CMAKE_C_COMPILER "arm-none-eabi-gcc.exe") # added message("CMAKE_C_COMPILER ${CMAKE_C_COMPILER}") # added set(CMAKE_CXX_COMPILER "arm-none-eabi-g++.exe") # added project(example) #... ``` Then, if I repeat the process in build subdirectory, I get this: ```none $ rm -rf * $ /c/Program\ Files/CMake/bin/cmake.exe .. -DCMAKE_BUILD_TYPE=Debug -G "MSYS Makefiles" CMAKE_C_COMPILER C:/msys64/mingw64/bin/arm-none-eabi-gcc.exe -- The C compiler identification is GNU 13.3.0 -- The CXX compiler identification is GNU 13.3.0 -- Check for working C compiler: C:/msys64/mingw64/bin/arm-none-eabi-gcc.exe -- Check for working C compiler: C:/msys64/mingw64/bin/arm-none-eabi-gcc.exe - broken CMake Error at C:/Program Files/CMake/share/cmake-3.17/Modules/CMakeTestCCompiler.cmake:60 (message): The C compiler "C:/msys64/mingw64/bin/arm-none-eabi-gcc.exe" is not able to compile a simple test program. It fails with the following output: Change Dir: C:/src/FreeRTOS-Kernel/examples/cmake_example/build/CMakeFiles/CMakeTmp Run Build Command(s):C:/msys64/usr/bin/make.exe cmTC_8e671/fast && /usr/bin/make -f CMakeFiles/cmTC_8e671.dir/build.make CMakeFiles/cmTC_8e671.dir/build make[1]: Entering directory '/c/src/FreeRTOS-Kernel/examples/cmake_example/build/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_8e671.dir/testCCompiler.c.obj /C/msys64/mingw64/bin/arm-none-eabi-gcc.exe -o CMakeFiles/cmTC_8e671.dir/testCCompiler.c.obj -c /C/src/FreeRTOS-Kernel/examples/cmake_example/build/CMakeFiles/CMakeTmp/testCCompiler.c Linking C executable cmTC_8e671.exe "/C/Program Files/CMake/bin/cmake.exe" -E rm -f CMakeFiles/cmTC_8e671.dir/objects.a /C/msys64/mingw64/bin/ar.exe cr CMakeFiles/cmTC_8e671.dir/objects.a @CMakeFiles/cmTC_8e671.dir/objects1.rsp /C/msys64/mingw64/bin/arm-none-eabi-gcc.exe -Wl,--whole-archive CMakeFiles/cmTC_8e671.dir/objects.a -Wl,--no-whole-archive -o cmTC_8e671.exe -Wl,--out-implib,libcmTC_8e671.dll.a -Wl,--major-image-version,0,--minor-image-version,0 C:/msys64/mingw64/bin/../lib/gcc/arm-none-eabi/13.3.0/../../../../arm-none-eabi/bin/ld.exe: unrecognized option '--major-image-version' C:/msys64/mingw64/bin/../lib/gcc/arm-none-eabi/13.3.0/../../../../arm-none-eabi/bin/ld.exe: use the --help option for usage information collect2.exe: error: ld returned 1 exit status make[1]: *** [CMakeFiles/cmTC_8e671.dir/build.make:109: cmTC_8e671.exe] Error 1 make[1]: Leaving directory '/c/src/FreeRTOS-Kernel/examples/cmake_example/build/CMakeFiles/CMakeTmp' make: *** [Makefile:141: cmTC_8e671/fast] Error 2 CMake will not be able to correctly generate this project. Call Stack (most recent call first): CMakeLists.txt:7 (project) -- Configuring incomplete, errors occurred! See also "C:/src/FreeRTOS-Kernel/examples/cmake_example/build/CMakeFiles/CMakeOutput.log". See also "C:/src/FreeRTOS-Kernel/examples/cmake_example/build/CMakeFiles/CMakeError.log". ``` So, now not even CMake setup/configuration passes, and it is actually linking of “simple test program” that fails with “unrecognized option ‘–major-image-version’”. So, how am I supposed to build this`cmake_example`? ---
**Author:** ![sdbbs](https://d3iykfbgfh8zhg.cloudfront.net/user_avatar/forums.freertos.org/sdbbs/32/2535_2.png) [@sdbbs](https://forums.freertos.org/u/sdbbs)\ **Post date:** [February 11, 2025, 4:28pm UTC](https://forums.freertos.org/t/compiling-the-cmake-example-in-freertos-kernel-mingw64/22530/2 "2025-02-11T16:28:50Z")
Right, figured out how to compile this for the MINGW64 gcc; after some grepping, it turns out there is this stanza in `FreeRTOS-Kernel/CMakeLists.txt`: ```cmake # ... # Native FREERTOS_PORT for Linux and Windows MINGW builds if(UNIX) message(STATUS " Auto-Detected Unix, setting FREERTOS_PORT=GCC_POSIX") set(FREERTOS_PORT GCC_POSIX CACHE STRING "FreeRTOS port name") elseif(MINGW) message(STATUS " Auto-Detected MINGW, setting FREERTOS_PORT=MSVC_MINGW") set(FREERTOS_PORT MSVC_MINGW CACHE STRING "FreeRTOS port name") endif() # ... ``` Right, and since there is a `set(FREERTOS_PORT ...` stanza already in `cmake_example/CMakeLists.txt`, we simply need to change it to value of `MSVC_MINGW`; but that alone will cause: ```none C:/src/FreeRTOS-Kernel/portable/MSVC-MingW/portmacro.h:60:27: error: ISO C90 does not support 'long long' [-Werror=long-long] 60 | typedef unsigned long long UBaseType_t; | ^~~~ cc1.exe: all warnings being treated as errors ``` So, finally, we have to comment the `set_property(TARGET freertos_kernel PROPERTY C_STANDARD 90)` line at the end of `cmake_example/CMakeLists.txt` - and the project finally compiles and links for Windows. Here is the diff for `cmake_example/CMakeLists.txt`: ```diff diff --git a/examples/cmake_example/CMakeLists.txt b/examples/cmake_example/CMakeLists.txt index 7b31cc52a..1debd7ed2 100644 --- a/examples/cmake_example/CMakeLists.txt +++ b/examples/cmake_example/CMakeLists.txt @@ -21,7 +21,8 @@ endif() set(FREERTOS_HEAP "4" CACHE STRING "" FORCE) # Select the native compile PORT -set(FREERTOS_PORT "TEMPLATE" CACHE STRING "" FORCE) +#set(FREERTOS_PORT "TEMPLATE" CACHE STRING "" FORCE) +set(FREERTOS_PORT "MSVC_MINGW" CACHE STRING "" FORCE) # Adding the FreeRTOS-Kernel subdirectory add_subdirectory(${FREERTOS_KERNEL_PATH} FreeRTOS-Kernel) @@ -71,4 +72,4 @@ add_executable(${PROJECT_NAME} target_link_libraries(${PROJECT_NAME} freertos_kernel freertos_config) -set_property(TARGET freertos_kernel PROPERTY C_STANDARD 90) \ No newline at end of file +#set_property(TARGET freertos_kernel PROPERTY C_STANDARD 90) ``` ---
**Author:** ![sdbbs](https://d3iykfbgfh8zhg.cloudfront.net/user_avatar/forums.freertos.org/sdbbs/32/2535_2.png) [@sdbbs](https://forums.freertos.org/u/sdbbs)\ **Post date:** [February 11, 2025, 9:53pm UTC](https://forums.freertos.org/t/compiling-the-cmake-example-in-freertos-kernel-mingw64/22530/3 "2025-02-11T21:53:06Z")
Right, also managed to compile this `cmake_example` for GCC\_ARM\_CM0 port (see `FreeRTOS-Kernel/CMakeLists.txt` for a basic list), however cannot get it to link. Errors I’ve seen here: ```none is not able to compile a simple test program. ... /C/msys64/mingw64/bin/arm-none-eabi-gcc.exe -Wl,--whole-archive CMakeFiles/cmTC_b00b2.dir/objects.a -Wl,--no-whole-archive -o cmTC_b00b2.exe -Wl,--out-implib,libcmTC_b00b2.dll.a -Wl,--major-image-version,0,--minor-image-version,0 C:/msys64/mingw64/bin/../lib/gcc/arm-none-eabi/13.3.0/../../../../arm-none-eabi/bin/ld.exe: unrecognized option '--major-image-version' C:/msys64/mingw64/bin/../lib/gcc/arm-none-eabi/13.3.0/../../../../arm-none-eabi/bin/ld.exe: use the --help option for usage information collect2.exe: error: ld returned 1 exit status ``` This is apparently a sign of a missing toolchain, see links in the diff below for references. ```none C:/src/FreeRTOS-Kernel/portable/GCC/ARM_CM0/portmacro.h:80:6: error: #error configTICK_TYPE_WIDTH_IN_BITS set to unsupported tick type width. 80 | #error configTICK_TYPE_WIDTH_IN_BITS set to unsupported tick type width. | ^ ~~~~ C:/src/FreeRTOS-Kernel/portable/GCC/ARM_CM0/portmacro.h:318:45: error: unknown type name 'TickType_t'; did you mean 'StackType_t'? 318 | extern void vPortSuppressTicksAndSleep( TickType_t xExpectedIdleTime ); | ^ ~~~~~~~~~ | StackType_t ``` Solved by setting `configTICK_TYPE_WIDTH_IN_BITS` to something other than `TICK_TYPE_WIDTH_64_BITS` ```none C:/src/FreeRTOS-Kernel/examples/template_configuration/FreeRTOSConfig.h:135:1: error: C++ style comments are not allowed in ISO C90 [-Werror] 135 | //#define configTICK_TYPE_WIDTH_IN_BITS TICK_TYPE_WIDTH_64_BITS ``` Solved by using /\*\*/ comments instead of // ```none C:/src/FreeRTOS-Kernel/event_groups.c:298:25: error: unsigned conversion from 'int' to 'EventBits_t' {aka 'short unsigned int'} changes the value of '-65281' [-Werror=sign-conversion] 298 | uxReturn &= ~eventEVENT_BITS_CONTROL_BYTES; ``` Solved by using `TICK_TYPE_WIDTH_32_BITS` instead of `TICK_TYPE_WIDTH_16_BITS` ```none C:/src/FreeRTOS-Kernel/tasks.c:48:6: error: #error configKERNEL_PROVIDED_STATIC_MEMORY cannot be set to 1 when using an MPU port. The vApplicationGet*TaskMemory() functions must be provided manually. 48 | #error configKERNEL_PROVIDED_STATIC_MEMORY cannot be set to 1 when using an MPU port. The vApplicationGet*TaskMemory() functions must be provided manually. | ^ ~~~~ ``` Solved by setting `configKERNEL_PROVIDED_STATIC_MEMORY` to 0. Here is the diff: ```diff diff --git a/examples/cmake_example/CMakeLists.txt b/examples/cmake_example/CMakeLists.txt index 7b31cc52a..e6d7cb7ba 100644 --- a/examples/cmake_example/CMakeLists.txt +++ b/examples/cmake_example/CMakeLists.txt @@ -1,4 +1,23 @@ cmake_minimum_required(VERSION 3.15) + +# https://stackoverflow.com/q/70324578 -> +# https://cmake.org/cmake/help/latest/manual/cmake-toolchains.7.html#cross-compiling-for-linux +# https://cmake.org/cmake/help/latest/variable/CMAKE_SYSTEM_NAME.html +set(CMAKE_SYSTEM_NAME Generic) # added +set(CMAKE_SYSTEM_PROCESSOR arm) # added + +find_program(CMAKE_C_COMPILER "arm-none-eabi-gcc.exe") # added +message("CMAKE_C_COMPILER ${CMAKE_C_COMPILER}") # added +set(CMAKE_CXX_COMPILER "arm-none-eabi-g++.exe") # added + +# https://stackoverflow.com/q/53633705 +set(CMAKE_TRY_COMPILE_TARGET_TYPE "STATIC_LIBRARY") # added + +# https://discourse.cmake.org/t/9726 +set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mcpu=cortex-m4 -mthumb -mno-thumb-interwork -mfpu=fpv4-sp-d16 -mfloat-abi=hard") +set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mcpu=cortex-m4 -mthumb -mno-thumb-interwork -mfpu=fpv4-sp-d16 -mfloat-abi=hard") +set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} -mcpu=cortex-m4 -mthumb -mno-thumb-interwork -mfpu=fpv4-sp-d16 -mfloat-abi=hard") + project(example) set(FREERTOS_KERNEL_PATH "../../") @@ -21,7 +40,8 @@ endif() set(FREERTOS_HEAP "4" CACHE STRING "" FORCE) # Select the native compile PORT -set(FREERTOS_PORT "TEMPLATE" CACHE STRING "" FORCE) +#set(FREERTOS_PORT "TEMPLATE" CACHE STRING "" FORCE) +set(FREERTOS_PORT "GCC_ARM_CM0" CACHE STRING "" FORCE) # Adding the FreeRTOS-Kernel subdirectory add_subdirectory(${FREERTOS_KERNEL_PATH} FreeRTOS-Kernel) @@ -71,4 +91,4 @@ add_executable(${PROJECT_NAME} target_link_libraries(${PROJECT_NAME} freertos_kernel freertos_config) -set_property(TARGET freertos_kernel PROPERTY C_STANDARD 90) \ No newline at end of file +set_property(TARGET freertos_kernel PROPERTY C_STANDARD 90) diff --git a/examples/template_configuration/FreeRTOSConfig.h b/examples/template_configuration/FreeRTOSConfig.h index 33f80ea62..ff7ad0350 100644 --- a/examples/template_configuration/FreeRTOSConfig.h +++ b/examples/template_configuration/FreeRTOSConfig.h @@ -132,7 +132,8 @@ * * Defining configTICK_TYPE_WIDTH_IN_BITS as TICK_TYPE_WIDTH_64_BITS causes * TickType_t to be defined (typedef'ed) as an unsigned 64-bit type. */ -#define configTICK_TYPE_WIDTH_IN_BITS TICK_TYPE_WIDTH_64_BITS +/*#define configTICK_TYPE_WIDTH_IN_BITS TICK_TYPE_WIDTH_64_BITS*/ +#define configTICK_TYPE_WIDTH_IN_BITS TICK_TYPE_WIDTH_32_BITS /* Set configIDLE_SHOULD_YIELD to 1 to have the Idle task yield to an * application task if there is an Idle priority (priority 0) application task that @@ -559,7 +560,8 @@ * The application can provide it's own implementation of * vApplicationGetIdleTaskMemory() and vApplicationGetTimerTaskMemory() by * setting configKERNEL_PROVIDED_STATIC_MEMORY to 0 or leaving it undefined. */ -#define configKERNEL_PROVIDED_STATIC_MEMORY 1 +/*#define configKERNEL_PROVIDED_STATIC_MEMORY 1*/ +#define configKERNEL_PROVIDED_STATIC_MEMORY 0 / ****************************************************************************** / /* ARMv8-M port Specific Configuration definitions. *************************** / ``` As I mentioned, for me this compiles, but does not link - the linking errors are mostly undefined references like: ```none ... [100%] Linking C executable example C:/msys64/mingw64/bin/../lib/gcc/arm-none-eabi/13.3.0/../../../../arm-none-eabi/bin/ld.exe: CMakeFiles/example.dir/main.c.obj: in function `exampleTask': C:/src/FreeRTOS-Kernel/examples/cmake_example/main.c:60:(.text+0xa): undefined reference to `MPU_vTaskDelay' C:/msys64/mingw64/bin/../lib/gcc/arm-none-eabi/13.3.0/../../../../arm-none-eabi/bin/ld.exe: CMakeFiles/example.dir/main.c.obj: in function `main': C:/src/FreeRTOS-Kernel/examples/cmake_example/main.c:72:(.text+0x30): undefined reference to `MPU_xTaskCreateStatic' C:/msys64/mingw64/bin/../lib/gcc/arm-none-eabi/13.3.0/../../../../arm-none-eabi/bin/ld.exe: FreeRTOS-Kernel/libfreertos_kernel.a(tasks.c.obj): in function `prvCreateIdleTasks': C:/src/FreeRTOS-Kernel/tasks.c:3596:(.text+0x64): undefined reference to `vApplicationGetIdleTaskMemory' C:/msys64/mingw64/bin/../lib/gcc/arm-none-eabi/13.3.0/../../../../arm-none-eabi/bin/ld.exe: FreeRTOS-Kernel/libfreertos_kernel.a(tasks.c.obj): in function `uxTaskPriorityGetFromISR': C:/src/FreeRTOS-Kernel/tasks.c:2672:(privileged_functions+0x370): undefined reference to `ulSetInterruptMask' C:/msys64/mingw64/bin/../lib/gcc/arm-none-eabi/13.3.0/../../../../arm-none-eabi/bin/ld.exe: C:/src/FreeRTOS-Kernel/tasks.c:2679:(privileged_functions+0x390): undefined reference to `vClearInterruptMask' ... ``` ---
**Author:** ![aggarg](https://d3iykfbgfh8zhg.cloudfront.net/user_avatar/forums.freertos.org/aggarg/32/4245_2.png) [@aggarg](https://forums.freertos.org/u/aggarg)\ **Post date:** [February 12, 2025, 4:27am UTC](https://forums.freertos.org/t/compiling-the-cmake-example-in-freertos-kernel-mingw64/22530/4 "2025-02-12T04:27:16Z")
Thank you for sharing your solution!