esp-idf/tools/test_apps/system/bootloader_sections
..
main
CMakeLists.txt
README.md
partitions_example.csv
sdkconfig.ci.anti_rollback
sdkconfig.ci.default
sdkconfig.ci.flash_encryption
sdkconfig.ci.rtc_retain
sdkconfig.defaults

README.md

Supported Targets ESP32 ESP32-S2 ESP32-S3 ESP32-C3

We have no rtc memory on ESP32-C2.