:orphan:

.. title:: ARMV7_M_ARMV8_M_MAINLINE

.. option:: CONFIG_ARMV7_M_ARMV8_M_MAINLINE

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

Type: ``bool``

Help
====

This option signifies the use of an ARMv7-M processor
implementation, or the use of a backwards-compatible
ARMv8-M processor implementation supporting the Main
Extension.

Notes:
- A Processing Element (PE) with the Main Extension is also
referred to as a Mainline Implementation.
- ARMv7-M compatibility requires the Main Extension.

From https://developer.arm.com/products/architecture/m-profile:
The Main Extension provides backwards compatibility
with ARMv7-M.

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

\ :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 selected by this symbol
===============================

- \ :option:`ATOMIC_OPERATIONS_BUILTIN <CONFIG_ATOMIC_OPERATIONS_BUILTIN>`
- \ :option:`ISA_THUMB2 <CONFIG_ISA_THUMB2>`
- \ :option:`CPU_CORTEX_M_HAS_BASEPRI <CONFIG_CPU_CORTEX_M_HAS_BASEPRI>`
- \ :option:`CPU_CORTEX_M_HAS_VTOR <CONFIG_CPU_CORTEX_M_HAS_VTOR>`
- \ :option:`CPU_CORTEX_M_HAS_PROGRAMMABLE_FAULT_PRIOS <CONFIG_CPU_CORTEX_M_HAS_PROGRAMMABLE_FAULT_PRIOS>`
- \ :option:`CPU_CORTEX_M_HAS_SYSTICK <CONFIG_CPU_CORTEX_M_HAS_SYSTICK>`

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

- \ :option:`CPU_CORTEX_M3 <CONFIG_CPU_CORTEX_M3>`
- \ :option:`CPU_CORTEX_M4 <CONFIG_CPU_CORTEX_M4>`
- \ :option:`CPU_CORTEX_M7 <CONFIG_CPU_CORTEX_M7>`
- \ :option:`ARMV8_M_MAINLINE <CONFIG_ARMV8_M_MAINLINE>`

Kconfig definition
==================

.. highlight:: kconfig

At ``arch/arm/core/aarch32/cortex_m/Kconfig:181``

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

Menu path: (Top) → ARM Options

.. parsed-literal::

    config ARMV7_M_ARMV8_M_MAINLINE
    	bool
    	select \ :option:`ATOMIC_OPERATIONS_BUILTIN <CONFIG_ATOMIC_OPERATIONS_BUILTIN>`
    	select \ :option:`ISA_THUMB2 <CONFIG_ISA_THUMB2>`
    	select \ :option:`CPU_CORTEX_M_HAS_BASEPRI <CONFIG_CPU_CORTEX_M_HAS_BASEPRI>`
    	select \ :option:`CPU_CORTEX_M_HAS_VTOR <CONFIG_CPU_CORTEX_M_HAS_VTOR>`
    	select \ :option:`CPU_CORTEX_M_HAS_PROGRAMMABLE_FAULT_PRIOS <CONFIG_CPU_CORTEX_M_HAS_PROGRAMMABLE_FAULT_PRIOS>`
    	select \ :option:`CPU_CORTEX_M_HAS_SYSTICK <CONFIG_CPU_CORTEX_M_HAS_SYSTICK>`
    	depends on \ :option:`CPU_CORTEX_M <CONFIG_CPU_CORTEX_M>` && !\ :option:`ARM64 <CONFIG_ARM64>` && \ :option:`ARM <CONFIG_ARM>`
    	help
    	  This option signifies the use of an ARMv7-M processor
    	  implementation, or the use of a backwards-compatible
    	  ARMv8-M processor implementation supporting the Main
    	  Extension.
	  
    	  Notes:
    	  - A Processing Element (PE) with the Main Extension is also
    	  referred to as a Mainline Implementation.
    	  - ARMv7-M compatibility requires the Main Extension.
	  
    	  From https://developer.arm.com/products/architecture/m-profile:
    	  The Main Extension provides backwards compatibility
    	  with ARMv7-M.

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