As a debugger, GDB is a veritable Swiss Army knife. And just like exploring all of the non-obvious uses of a those knives, your initial response to the scope of GDB’s feature set is likely to… ...

What makes this all work is the ESP-gdbstub code from Espressif themselves. gdbstub looks great — it works both with the standard SDK as well as with FreeRTOS, so you can debug your ESP-8266 ...