esp-idf/docs/en/migration-guides/release-5.x/5.2/system.rst

System
======

:link_to_translation:`zh_CN:[中文]`

FreeRTOS
--------

IDF FreeRTOS Upgrade
^^^^^^^^^^^^^^^^^^^^

The IDF FreeRTOS kernel (which is a dual-core SMP implementation of FreeRTOS) has been upgraded to be based on Vanilla FreeRTOS v10.5.1. With this upgrade, the design and implementation of IDF FreeRTOS has also been changed significantly. As a result, users should take not of the following changes to kernel behavior and API:

- When enabling single-core mode via the :ref:`CONFIG_FREERTOS_UNICORE` option, the kernel's behavior will now be identical to Vanilla FreeRTOS (see :ref:`freertos-idf-single-core` for more details).
- For SMP related APIs that were added by IDF FreeRTOS, checks on ``xCoreID`` arguments are now stricter. Providing out of range values for ``xCoreID`` arguments will now trigger an assert.
- The following SMP related APIs are now deprecated and replaced due to naming consistency reasons:

    - ``xTaskGetAffinity()`` is deprecated, call :cpp:func:`xTaskGetCoreID` instead.
    - ``xTaskGetIdleTaskHandleForCPU()`` is deprecated, call :cpp:func:`xTaskGetIdleTaskHandleForCore` instead.
    - ``xTaskGetCurrentTaskHandleForCPU()`` is deprecated, call :cpp:func:`xTaskGetCurrentTaskHandleForCore` instead.

Task Snapshot
^^^^^^^^^^^^^

The Task Snapshot API has been made private due to a lack of a practical way for the API to be used from user code (the scheduler must be halted before the API can be called).

.. only:: CONFIG_IDF_TARGET_ARCH_XTENSA

    Xtensa
    ------

    A number of legacy include paths for Xtensa headers have been deprecated:

    - ``#include "freertos/xtensa_api.h"`` is deprecated, please use ``#include "xtensa_api.h"`` instead.
    - ``#include "freertos/xtensa_context.h"`` is deprecated, please use ``#include "xtensa_context.h"`` instead.
    - ``#include "freertos/xtensa_timer.h"`` is deprecated, please use ``#include "xtensa_timer.h"`` instead.
refactor(freertos/task_snapshot): Deprecate task_snapshot.h This commit deprecates the `#include "freertos/task_snapshot.h" include path: - Adds compatibility header with compile time warning - Removes hints related to `task_snapshot.h` - Adds entry to migration guide 2023-09-21 05:35:54 -04:00			`System`
			`======`

			:link_to_translation:`zh_CN:[中文]`

			`FreeRTOS`
			`--------`

docs(freertos/idf): Add IDF FreeRTOS upgarde migration notes for v5.2 2023-12-17 16:05:26 -05:00			`IDF FreeRTOS Upgrade`
			`^^^^^^^^^^^^^^^^^^^^`

			`The IDF FreeRTOS kernel (which is a dual-core SMP implementation of FreeRTOS) has been upgraded to be based on Vanilla FreeRTOS v10.5.1. With this upgrade, the design and implementation of IDF FreeRTOS has also been changed significantly. As a result, users should take not of the following changes to kernel behavior and API:`

			- When enabling single-core mode via the :ref:`CONFIG_FREERTOS_UNICORE` option, the kernel's behavior will now be identical to Vanilla FreeRTOS (see :ref:`freertos-idf-single-core` for more details).
			- For SMP related APIs that were added by IDF FreeRTOS, checks on ``xCoreID`` arguments are now stricter. Providing out of range values for ``xCoreID`` arguments will now trigger an assert.
			`- The following SMP related APIs are now deprecated and replaced due to naming consistency reasons:`

			- ``xTaskGetAffinity()`` is deprecated, call :cpp:func:`xTaskGetCoreID` instead.
			- ``xTaskGetIdleTaskHandleForCPU()`` is deprecated, call :cpp:func:`xTaskGetIdleTaskHandleForCore` instead.
			- ``xTaskGetCurrentTaskHandleForCPU()`` is deprecated, call :cpp:func:`xTaskGetCurrentTaskHandleForCore` instead.

refactor(freertos/task_snapshot): Deprecate task_snapshot.h This commit deprecates the `#include "freertos/task_snapshot.h" include path: - Adds compatibility header with compile time warning - Removes hints related to `task_snapshot.h` - Adds entry to migration guide 2023-09-21 05:35:54 -04:00			`Task Snapshot`
			`^^^^^^^^^^^^^`

			`The Task Snapshot API has been made private due to a lack of a practical way for the API to be used from user code (the scheduler must be halted before the API can be called).`

change(xtensa): Add migration guide for depreacted include paths 2023-12-05 05:03:25 -05:00			`.. only:: CONFIG_IDF_TARGET_ARCH_XTENSA`

			`Xtensa`
			`------`

			`A number of legacy include paths for Xtensa headers have been deprecated:`

			- ``#include "freertos/xtensa_api.h"`` is deprecated, please use ``#include "xtensa_api.h"`` instead.
			- ``#include "freertos/xtensa_context.h"`` is deprecated, please use ``#include "xtensa_context.h"`` instead.
			- ``#include "freertos/xtensa_timer.h"`` is deprecated, please use ``#include "xtensa_timer.h"`` instead.