The problem is, that I only find older versions of xtensa-lx106-elf-gcc respectively crosstool-ng and they do not work with the latest ESP8266 2.5.2 package.
When I switch to v2.4 the function gdbstub_init(); is not recognized.
Therefore I'm searching for the sources of xtensa-lx106-elf-gcc or any other idea to get python support while debugging my ESP8266/NodeMCU with arduino
Best regards
Max