Multithreading Debugging in VSCode Fails with Amazon SMP FreeRTOS Kernel on ESP32-S3 (ESP-IDF 5.3.1)

[rutrilla]

Hi everyone,

I'm experiencing issues with multithreading debugging in VSCode when using the "Eclipse CDT GDB Adapter" for a project compiled with the Amazon SMP FreeRTOS kernel. Specifically, I'm using the "Run the Amazon SMP FreeRTOS kernel instead" option in ESP-IDF 5.3.1 on an ESP32-S3.

When I try to debug, GDB shows errors indicating that it cannot find FreeRTOS symbols, such as:

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Warn : RTOS FreeRTOS not detected. (GDB could not find symbol 'xSchedulerRunning')

After analyzing the .map files, I noticed that with the standard FreeRTOS kernel, the symbol xSchedulerRunning exists:

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.bss.xSchedulerRunning 0x3fc96b38 0x4 esp-idf/freertos/libfreertos.a(tasks.c.obj)

But when using the Amazon SMP FreeRTOS kernel, the closest symbol I can find is:

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.bss.xSchedulerRunningPerCore 0x3fc95d04 0x8 esp-idf/freertos/libfreertos.a(tasks.c.obj)

It seems like GDB is still searching for the old FreeRTOS symbols. Is there a way to configure GDB or VSCode to work correctly with the Amazon SMP FreeRTOS kernel?

Steps to reproduce:

• Use ESP32-S3 with ESP-IDF version 5.3.1.

• Compile the blink example with the "Run the Amazon SMP FreeRTOS kernel instead" option.

• Attempt to debug using the "Eclipse CDT GDB Adapter" in VSCode.

Any help or suggestions would be greatly appreciated!

Thanks in advance, Ramiro