:orphan:

.. title:: MPU_STACK_GUARD

.. option:: CONFIG_MPU_STACK_GUARD

*Thread Stack Guards*

*Thread Stack Guards*

Type: ``bool``

Help
====

Enable thread stack guards via MPU. ARC supports built-in stack protection.
If your core supports that, it is preferred over MPU stack guard.
For ARC_MPU_VER == 2, it requires 2048 extra bytes and a strong start address
alignment, this will bring big waste of memory, so no support for it.

Help
====

Enable Thread Stack Guards via MPU

Direct dependencies
===================

(\ :option:`ARC_CORE_MPU <CONFIG_ARC_CORE_MPU>` && \ :option:`ARC_MPU_VER <CONFIG_ARC_MPU_VER>` != 2 && \ :option:`CPU_HAS_MPU <CONFIG_CPU_HAS_MPU>` && \ :option:`ARC <CONFIG_ARC>`) || (\ :option:`ARM_MPU <CONFIG_ARM_MPU>` && \ :option:`CPU_HAS_MPU <CONFIG_CPU_HAS_MPU>` && \ :option:`CPU_CORTEX_M <CONFIG_CPU_CORTEX_M>` && !\ :option:`ARM64 <CONFIG_ARM64>` && \ :option:`ARM <CONFIG_ARM>`)

*(Includes any dependencies from ifs and menus.)*

Defaults
========

No defaults. Implicitly defaults to ``n``.

Symbols that select this symbol
===============================

- \ :option:`ARC_STACK_PROTECTION <CONFIG_ARC_STACK_PROTECTION>`
- \ :option:`ARM_STACK_PROTECTION <CONFIG_ARM_STACK_PROTECTION>`

Kconfig definitions
===================

.. highlight:: kconfig

At ``arch/arc/core/mpu/Kconfig:19``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:29`` → ``arch/Kconfig:12`` → ``arch/arc/Kconfig:281``

Menu path: (Top) → ARC Options → ARCv2 Family Options → ARC MPU Options → ARC Core MPU functionalities

.. parsed-literal::

    config MPU_STACK_GUARD
    	bool "Thread Stack Guards"
    	depends on \ :option:`ARC_CORE_MPU <CONFIG_ARC_CORE_MPU>` && \ :option:`ARC_MPU_VER <CONFIG_ARC_MPU_VER>` != 2 && \ :option:`CPU_HAS_MPU <CONFIG_CPU_HAS_MPU>` && \ :option:`ARC <CONFIG_ARC>`
    	help
    	  Enable thread stack guards via MPU. ARC supports built-in stack protection.
    	  If your core supports that, it is preferred over MPU stack guard.
    	  For ARC_MPU_VER == 2, it requires 2048 extra bytes and a strong start address
    	  alignment, this will bring big waste of memory, so no support for it.

----

At ``arch/arm/core/aarch32/cortex_m/mpu/Kconfig:59``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:29`` → ``arch/Kconfig:12`` → ``arch/arm/Kconfig:42`` → ``arch/arm/core/aarch32/Kconfig:237`` → ``arch/arm/core/aarch32/cortex_m/Kconfig:308``

Menu path: (Top) → ARM Options

.. parsed-literal::

    config MPU_STACK_GUARD
    	bool "Thread Stack Guards"
    	depends on \ :option:`ARM_MPU <CONFIG_ARM_MPU>` && \ :option:`CPU_HAS_MPU <CONFIG_CPU_HAS_MPU>` && \ :option:`CPU_CORTEX_M <CONFIG_CPU_CORTEX_M>` && !\ :option:`ARM64 <CONFIG_ARM64>` && \ :option:`ARM <CONFIG_ARM>`
    	help
    	  Enable Thread Stack Guards via MPU

*(The 'depends on' condition includes propagated dependencies from ifs and menus.)*