logging: rpc: log history support

[Damian-Nordic]

Add initial code for supporting the log history, that is, the mode of nRF RPC logging library in which log messages are stored in a ring buffer, and nRF RPC commands can be used for configuring and fetching the log history.

The rationale for supporting this mode is to reduce the nRF RPC traffic so that the bandwidth is available for higher priority tasks, while preserving the possibility to analyse the logs when an issue occurs.

This commit adds the support for saving the log messages in the ring buffer, fetching the log history, and setting the maximum level of saved messages.

[NordicBuilder]

You can find the documentation preview for this PR at this link. It will be updated about 10 minutes after the documentation build succeeds.

Note: This comment is automatically posted by the Documentation Publish GitHub Action.

[NordicBuilder]

CI Information

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Build number: 2

Inputs:

Sources:

sdk-nrf: PR head: daac296a7fd36a9bab32db0b09f6bac020638206

more details

sdk-nrf:

PR head: daac296a7fd36a9bab32db0b09f6bac020638206
merge base: a97ba919e45db56a60938d89ded2cb31920f985e
target head (main): deb0ad9452c9a1a20ced11f43c659950973accc9
Diff

Github labels

Enabled	Name	Description
	ci-disabled	Disable the ci execution
	ci-all-test	Run all of ci, no test spec filtering will be done
	ci-force-downstream	Force execution of downstream even if twister fails
	ci-run-twister	Force run twister
	ci-run-zephyr-twister	Force run zephyr twister

List of changed files detected by CI (10)

include
│  ├── logging
│  │  │ log_rpc.h
samples
│  ├── nrf_rpc
│  │  ├── protocols_serialization
│  │  │  ├── client
│  │  │  │  ├── src
│  │  │  │  │  │ log_rpc_shell.c
│  │  │  ├── server
│  │  │  │  ├── snippets
│  │  │  │  │  ├── log_rpc
│  │  │  │  │  │  │ log_rpc.conf
subsys
│  ├── logging
│  │  ├── CMakeLists.txt
│  │  ├── Kconfig
│  │  ├── log_backend_rpc.c
│  │  ├── log_backend_rpc_history.h
│  │  ├── log_backend_rpc_history_ram.c
│  │  ├── log_forwarder_rpc.c
│  │  │ log_rpc_group.h

Outputs:

Toolchain

Version: b77d8c1312
Build docker image: docker-dtr.nordicsemi.no/sw-production/ncs-build:b77d8c1312_912848a074

Test Spec & Results: ✅ Success; ❌ Failure; 🟠 Queued; 🟡 Progress; ◻️ Skipped; ⚠️ Quarantine

• ◻️ Toolchain - Skipped: existing toolchain is used
• ✅ Build twister
  • sdk-nrf test count: 60
• ✅ Integration tests
  • ✅ test-fw-nrfconnect-rpc
  • ✅ test-fw-nrfconnect-ps

Disabled integration tests

• • desktop52_verification
  • test_ble_nrf_config
  • test-fw-nrfconnect-apps
  • test-fw-nrfconnect-ble_mesh
  • test-fw-nrfconnect-ble_samples
  • test-fw-nrfconnect-boot
  • test-fw-nrfconnect-chip
  • test-fw-nrfconnect-fem
  • test-fw-nrfconnect-nfc
  • test-fw-nrfconnect-nrf-iot_libmodem-nrf
  • test-fw-nrfconnect-nrf-iot_lwm2m
  • test-fw-nrfconnect-nrf-iot_mosh
  • test-fw-nrfconnect-nrf-iot_nrf_provisioning
  • test-fw-nrfconnect-nrf-iot_positioning
  • test-fw-nrfconnect-nrf-iot_samples
  • test-fw-nrfconnect-nrf-iot_serial_lte_modem
  • test-fw-nrfconnect-nrf-iot_thingy91
  • test-fw-nrfconnect-nrf-iot_zephyr_lwm2m
  • test-fw-nrfconnect-nrf_crypto
  • test-fw-nrfconnect-rs
  • test-fw-nrfconnect-tfm
  • test-fw-nrfconnect-thread
  • test-fw-nrfconnect-zigbee
  • test-low-level
  • test-sdk-audio
  • test-sdk-dfu
  • test-sdk-find-my
  • test-sdk-mcuboot
  • test-sdk-pmic-samples
  • test-sdk-sidewalk
  • test-sdk-wifi
  • test-secdom-samples-public

Note: This message is automatically posted and updated by the CI

[alxelax]

LGTM just a couple of questions.

[kderda]

Looks good, found two nits which you can apply or ignore :)