Thanks for the reply, good to know that there's internal interest in releasing as much documentation as possible!
By compiler configuration files, I was referring to whatever customised files Cadence gives you when licensing a particularly configured Xtensa core. I don't really know the specifics ...

Looks like there's an esp_task_wdt_feed() function in ESP-IDF that looks like it will feed FreeRTOS's watchdog implementation.
Implementation is here, see the related header for maybe more information:
https://github.com/espressif/esp-idf/blob/b092e427404776ec326856d67002c1f47e1b5535/components ...

I'm interested in determining the feasibility of someday using the Rust programming language with the ESP32.

Currently, I know it's not possible, but I'd like to get some discussion started here to see what it would take.

I know there is very minimal support for Xtensa architecture within LLVM at ...