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¶

CPU_CORTEX_M && ARM

(Includes any dependencies from ifs and menus.)

Defaults¶

No defaults. Implicitly defaults to n.

Symbols selected by this symbol¶

Symbols that select this symbol¶

Kconfig definition¶

At <Zephyr Architecture>/arm/core/aarch32/cortex_m/Kconfig:190

Included via Kconfig:8 → Kconfig.zephyr:39 → <Zephyr Architecture>/Kconfig:12 → <Zephyr Architecture>/arm/Kconfig:57 → <Zephyr Architecture>/arm/core/aarch32/Kconfig:294

Menu path: (Top) → ARM Options

config ARMV7_M_ARMV8_M_MAINLINE
    bool
    select ATOMIC_OPERATIONS_BUILTIN
    select ISA_THUMB2
    select CPU_CORTEX_M_HAS_BASEPRI
    select CPU_CORTEX_M_HAS_VTOR
    select CPU_CORTEX_M_HAS_PROGRAMMABLE_FAULT_PRIOS
    select CPU_CORTEX_M_HAS_SYSTICK
    depends on CPU_CORTEX_M && 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.)