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freertos: add kconfig options for task snapshot functions

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Task snapshots is required by other modules that don't use gdbstub
or core dump. Add a Kconfig option to manage these possibilities.
This commit is contained in:
Omar Chebib
2021-08-19 16:45:58 +08:00
parent 5f38b766a8
commit 92cf321677
6 changed files with 20 additions and 2 deletions
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docs/en/api-guides/performance/ram-usage.rst
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@@ -129,6 +129,7 @@ The following options will reduce IRAM usage of some ESP-IDF features:
.. list::
- Enable :ref:`CONFIG_FREERTOS_PLACE_FUNCTIONS_INTO_FLASH`. Provided these functions are not (incorrectly) used from ISRs, this option is safe to enable in all configurations.
- Enable :ref:`CONFIG_FREERTOS_PLACE_SNAPSHOT_FUNS_INTO_FLASH`. Enabling this option will place snapshot-related functions, such as ``vTaskGetSnapshot`` or ``uxTaskGetSnapshotAll``, in flash.
- Disable Wi-Fi options :ref:`CONFIG_ESP32_WIFI_IRAM_OPT` and/or :ref:`CONFIG_ESP32_WIFI_RX_IRAM_OPT`. Disabling these options will free available IRAM at the cost of Wi-Fi performance.
:esp32c3 or esp32s3: - :ref:`CONFIG_SPI_FLASH_ROM_IMPL` enabling this option will free some IRAM but will mean that esp_flash bugfixes and new flash chip support is not available.
:esp32: - :ref:`CONFIG_SPI_FLASH_ROM_DRIVER_PATCH` disabling this option will free some IRAM but is only available in some flash configurations (see the configuration item help text).