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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

• SOC_OPENISA_RV32M1_RISCV32
• SOC_RISCV32_MIV
• SOC_RISCV32_SIFIVE_FREEDOM
• CPU_ARCEM4
• ARMV6_M_ARMV8_M_BASELINE
• XTENSA_NO_IPC
• NIOS2

Kconfig definition

At kernel/Kconfig:417

Included via Kconfig:10 → Kconfig.zephyr:31

Menu path: (top menu) → General Kernel Options → Atomic Operations

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.

(Definitions include propagated dependencies, including from if’s and menus.)