Undefined reference to SEGGER_SYSVIEW APIs upon integrating the patches

[morpho]

Been having trouble integrating systemview for tracing FreeRTOS application. I came across this thread, and even tried replacing the files with what's inside the PatchedFiles.zip folder, and I see there's an #include "SEGGER_SYSVIEW_FreeRTOS.h" inside FreeRTOSConfig.h, but upon compiling I start seeing a bunch of undefined reference errors including undefined reference to SEGGER_SYSVIEW_RecordVoid'`

Looks like traceTASK functions are invoked but it can't seem to find the reference. Anything obvious that I haven't figured out?

[Kenneth]

The person best fitted to answer this is out of office at the moment. But I found some other links that may be helpful:

https://devzone.nordicsemi.com/f/nordic-q-a/69475/how-do-i-debug-free-rtos

https://devzone.nordicsemi.com/search?q=freertos%20systemview#serpgroup=17 

[morpho]

Are they still out of office? I have already looked at these links and tried out to no avail

[morpho]

Also I just tried your project and I see the same issue as what I encountered before: "Could not find RTT Control Block. Timeout: 20000 ms"

Are there any settings that I am supposed to be configuring? I just click on the "Start Recording" option after starting the program

[Susheel Nuguru]

I am really sorry, Not sure what happened but the main.c file did not include the change i did.

Basically you need to call "    SEGGER_SYSVIEW_Conf();" in the main.c very early. This will initialize the RTT control block properly in a way that systemview can search for it. Can you please check if it works for you with that addition of line in your main.c and also you need to have .SEGGER_SYSVIEW_Config_FreeRTOS.c file in your project which I see missing.

Reattaching my changes,

4478.ble_app_hrs_freertos.zip

[Susheel Nuguru]

It is working for  me here. with my project

I can't compile your project as I have some issue with multi C++ compilers mixed up in my settings. I will have to solve that issue another time

[morpho]

Thanks. I was able to get yours to work but having trouble with my project.

SEGGER_SYSVIEW_Conf() is undefined, but I don't see you included a header file in main that references it in the attached project.

Also when I compile with the following line uncommented out, I still see a bunch of undefined reference errros.

#include "SEGGER_SYSVIEW_FreeRTOS.h" 


I have included the following paths in the preprocessor:

SeggerFiles

SeggerFiles/Config

SeggerFiles/SEGGER/Syscalls

SeggerFiles/SEGGER/

[Susheel Nuguru]

I couldn't find any of your project attachment in this thread. But the project attachment you did on another thread "smartwatch", I couldn't compile that at all because of my own C++ compiler issues. But the point is that this should work. Just some minor technicalities that you need to patch i guess.

[morpho]

SmartWatch 3.ziphere it is. 

uncommenting out #include "SEGGER_SYSVIEW_FreeRTOS.h" in FreeRTOSConfig.h file results in a bunch of errors:

`ulTaskNotifyTake':
1> /Users/user/Projects/BLE/nRF5_SDK_17.0.2_d674dde/external/freertos/source/tasks.c:4481: undefined reference to `SEGGER_SYSVIEW_RecordU32x2'
1> /Applications/SEGGER Embedded Studio for ARM 5.42/gcc/arm-none-eabi/bin/ld: Output/Release/Obj/Init template - FreeRTOS/tasks.o: in function `vTaskNotifyGiveFromISR':
1> /Users/userhu/Projects/BLE/nRF5_SDK_17.0.2_d674dde/external/freertos/source/tasks.c:4859: undefined reference to `SEGGER_SYSVIEW_ShrinkId'

e....


it looks to me certain segger files aren't recognized hence the complaint about undefined references to the APIs. And as mentioned, the segger files are already included in the project via preprocessor. You can confirm by looking at the attached project

[Susheel Nuguru]

You have hardcoded path in your project to the project

I could try to fix those paths, but then that would ruin the purpose of testing your project as it is. You should always use relative paths in the project file.

[morpho]

Sorry, aren't these paths hardcoded in the preprocessor anyways? If so, the existing nordic projects in the SDK follow the same approach. 

And I'm not sure how Segger IDE deals with it but I assumed if I send you my project and put it into SDK/examples/<Your-Folder>/<Another-Folder>, it would work the same for you as it does for me. And I just realized I sent you the entire solution instead of just the project itself which I'm yet to figure out how to save it.

But you can take a look at Init template - FreeRTOS

[Susheel Nuguru]

I am not really sure why we are seeing the difference. Mostly we are using different SES versions and/or you are using Mac and I am testing this on Windows.. I still get this after trying to patch few things in the folder naming.

The SES version I am using is this one

[morpho]

Your error says the project is already loaded. That's what you see after building it? You're making sure it's a clean project? For me, all I have to do is just add the existing project into my solution, set it as an active project and build it.

I'm not very great at Segger yet and there's a lot of things that still annoy me about it and i'm getting used to it

And yes i'm using a mac and there's minor differences in the versions but I don't think that should be a problem.