esp-coredump

A Python-based utility that helps users to retrieve and analyse core dumps. This tool provides two commands for core dumps analysis:

• info_corefile - prints crashed task’s registers, callstack, list of available tasks in the system, memory regions and contents of memory stored in core dump (TCBs and stacks)

• dbg_corefile - creates core dump ELF file and runs GDB debug session with this file. User can examine memory, variables and tasks states manually. Note that since not all memory is saved in core dump only values of variables allocated on stack will be meaningful

Installation

esp-coredump is a stand-alone utility integrated into ESP-IDF.

To install the ESP-IDF framework please visit the documentation.

Examples

esp-coredump can be used as a CLI tool as well as separate package

Build test_apps for a target, flash and get a base64 text (test_apps folder)

from esp_coredump import CoreDump

# Instantiate the coredump object
coredump = CoreDump(chip='esp32',core="./test/esp32/coredump.b64",core_format='b64', prog='./test_apps/build/test_core_dump.elf')
coredump.info_corefile()  #  print the info of the test app corefile
coredump.dbg_corefile()  #  run GDB debug session with provided ELF file

Documentation

Visit the documentation or run esp-coredump -h.

License

This document and the attached source code are released as Free Software under Apache Software License Version 2.0.