:orphan:

.. title:: ATOMIC_OPERATIONS_C

.. option:: CONFIG_ATOMIC_OPERATIONS_C

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

Type: ``bool``

Help
====

Use atomic operations routines that are implemented entirely
in C by locking interrupts. Selected by architectures which either
do not have support for atomic operations in their instruction
set, or haven't been implemented yet during bring-up, and also
the compiler does not have support for the atomic __sync_* builtins.

Defaults
========

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

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

- \ :option:`SOC_RISCV32_LITEX_VEXRISCV <CONFIG_SOC_RISCV32_LITEX_VEXRISCV>`
- \ :option:`SOC_OPENISA_RV32M1_RISCV32 <CONFIG_SOC_OPENISA_RV32M1_RISCV32>`
- \ :option:`SOC_IT8XXX2 <CONFIG_SOC_IT8XXX2>`
- \ :option:`SOC_RISCV32_MIV <CONFIG_SOC_RISCV32_MIV>`
- \ :option:`SOC_RISCV_SIFIVE_FREEDOM <CONFIG_SOC_RISCV_SIFIVE_FREEDOM>`
- \ :option:`CPU_ARCEM <CONFIG_CPU_ARCEM>`
- \ :option:`CPU_ARCHS <CONFIG_CPU_ARCHS>`
- \ :option:`ARMV6_M_ARMV8_M_BASELINE <CONFIG_ARMV6_M_ARMV8_M_BASELINE>`
- \ :option:`XTENSA_NO_IPC <CONFIG_XTENSA_NO_IPC>`
- \ :option:`SPARC <CONFIG_SPARC>`
- \ :option:`NIOS2 <CONFIG_NIOS2>`

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

.. highlight:: kconfig

At ``kernel/Kconfig:415``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:30``

Menu path: (Top) → General Kernel Options → Atomic Operations

.. parsed-literal::

    config ATOMIC_OPERATIONS_C
    	bool
    	help
    	  Use atomic operations routines that are implemented entirely
    	  in C by locking interrupts. Selected by architectures which either
    	  do not have support for atomic operations in their instruction
    	  set, or haven't been implemented yet during bring-up, and also
    	  the compiler does not have support for the atomic __sync_* builtins.

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