RTOS/TM4C123GH6PM: Print call stack to console

Volker Weber

Part Number: TM4C123GH6PM

Tool/software: TI-RTOS

Hi,

as the complexity of my projects rise, I implemented a little debug handler. Consequently I wanted to display the past call stack to the debug output (serial interface), something like that:

    fprintf(stderr, "\r\n");
    vfprintf(stderr, 'some message');

    // output stack
    callStack.print(); // stackTrace.print() ??

    HALT();

Are there any RTOS board means to accomplish that?

over 8 years ago

0 ToddMullanix over 8 years ago

TI__Guru* 96960 points

Hi Volker,

The RTOS does not have any runtime calls to get this info. It is in Tools->ROV->Tasks->CallStacks in CCS (also in IAR).

Todd

0 Volker Weber over 8 years ago in reply to ToddMullanix

Intellectual 570 points

Hi Todd,

thanks for your answer. I am aware of the debug possibilities that come along with the CCS, so I do know the CallStack tab. However, what I want is an explicit access to this call stack to print it to my serial port (or a file or what else). So that RTOS does not have any calls for that, what about the low level implementation?

0 ToddMullanix over 8 years ago in reply to Volker Weber

TI__Guru* 96960 points

Sorry. Nothing in TI-RTOS runtime code.

Todd

0 Volker Weber over 8 years ago in reply to ToddMullanix

Intellectual 570 points

Ok, thanks anyway Todd. Actual you answer did not solve my issue, but it clarifies it ;-)

0 ToddMullanix over 8 years ago in reply to Volker Weber

TI__Guru* 96960 points

Hi Volker,

Turns out we did play with this open source backtrace code: github.com/.../crash-handler. It looked promising, but once we had the ROV backtrace, adding it into the kernel was not a priority...only so many hours in a day:)

Todd

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RTOS/TM4C123GH6PM: Print call stack to console