A collection of useful gdb snippets picked up here and there:

• IP address pretty printer
• Hexdump
• Dump breakpoints
• Save and restore breakpoints

Make sure you have the full version of gdb including python scripting (a lite version is sometimes installed by default):

apt install gdb

Put the following in your .gdbinit:

define esp_source_scripts
source path/to/gdb-utilities/esp_tools.gdb
source path/to/gdb-utilities/stackfuncs.gdb
source path/to/gdb-utilities/dot.gdbinit
end

Define an alias that uses the correct gdb:

alias esp-cgdb='/usr/bin/cgdb -d xtensa-esp32-elf-gdb'

You can then use it as follows:

# First console
idf.py monitor openocd
#Second console
esp-cgdb path/to/build/projectname.elf

Within openocd:

esp_source_scripts
esp_connect
esp_reboot_to_main

my_pp: https://grim7reaper.rolinh.ch/blog/2014/09/04/pretty-printer-avec-gdb/

xxd: https://stackoverflow.com/questions/9233095/memory-dump-formatted-like-xxd-from-gdb

dump_breaks: https://prograide.com/pregunta/17550/obtenir-le-gdb-pour-enregistrer-une-liste-de-points-darrt

bsave/brestore : https://stackoverflow.com/questions/501486/getting-gdb-to-save-a-list-of-breakpoints