:orphan:

.. title:: X86_STACK_PROTECTION

.. option:: CONFIG_X86_STACK_PROTECTION

*(No prompt -- not directly user assignable.)*

Type: ``bool``

Help
====

This option leverages the MMU to cause a system fatal error if the
bounds of the current process stack are overflowed. This is done
by preceding all stack areas with a 4K guard page.

Help
====

This option leverages the MMU to cause a system fatal error if the
bounds of the current process stack are overflowed. This is done
by preceding all stack areas with a 4K guard page.

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

(!\ :option:`X86_64 <CONFIG_X86_64>` && \ :option:`X86 <CONFIG_X86>`) || (\ :option:`X86_64 <CONFIG_X86_64>` && \ :option:`X86 <CONFIG_X86>`)

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

Defaults
========

- y if \ :option:`HW_STACK_PROTECTION <CONFIG_HW_STACK_PROTECTION>`
- y if \ :option:`HW_STACK_PROTECTION <CONFIG_HW_STACK_PROTECTION>`

Symbols selected by this symbol
===============================

- \ :option:`THREAD_STACK_INFO <CONFIG_THREAD_STACK_INFO>`
- \ :option:`SET_GDT <CONFIG_SET_GDT>`
- \ :option:`GDT_DYNAMIC <CONFIG_GDT_DYNAMIC>`
- \ :option:`X86_ENABLE_TSS <CONFIG_X86_ENABLE_TSS>`
- \ :option:`THREAD_STACK_INFO <CONFIG_THREAD_STACK_INFO>`

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

.. highlight:: kconfig

At ``arch/x86/core/Kconfig.ia32:55``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:29`` → ``arch/Kconfig:12`` → ``arch/x86/Kconfig:319``

Menu path: (Top) → X86 Architecture Options → Processor Capabilities

.. parsed-literal::

    config X86_STACK_PROTECTION
    	bool
    	default y if \ :option:`HW_STACK_PROTECTION <CONFIG_HW_STACK_PROTECTION>`
    	select \ :option:`THREAD_STACK_INFO <CONFIG_THREAD_STACK_INFO>`
    	select \ :option:`SET_GDT <CONFIG_SET_GDT>`
    	select \ :option:`GDT_DYNAMIC <CONFIG_GDT_DYNAMIC>`
    	select \ :option:`X86_ENABLE_TSS <CONFIG_X86_ENABLE_TSS>`
    	depends on !\ :option:`X86_64 <CONFIG_X86_64>` && \ :option:`X86 <CONFIG_X86>`
    	help
    	  This option leverages the MMU to cause a system fatal error if the
    	  bounds of the current process stack are overflowed. This is done
    	  by preceding all stack areas with a 4K guard page.

----

At ``arch/x86/core/Kconfig.intel64:72``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:29`` → ``arch/Kconfig:12`` → ``arch/x86/Kconfig:320``

Menu path: (Top) → X86 Architecture Options

.. parsed-literal::

    config X86_STACK_PROTECTION
    	bool
    	default y if \ :option:`HW_STACK_PROTECTION <CONFIG_HW_STACK_PROTECTION>`
    	select \ :option:`THREAD_STACK_INFO <CONFIG_THREAD_STACK_INFO>`
    	depends on \ :option:`X86_64 <CONFIG_X86_64>` && \ :option:`X86 <CONFIG_X86>`
    	help
    	  This option leverages the MMU to cause a system fatal error if the
    	  bounds of the current process stack are overflowed. This is done
    	  by preceding all stack areas with a 4K guard page.

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