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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_RISCV32_LITEX_VEXRISCV

• SOC_OPENISA_RV32M1_RISCV32

• SOC_RISCV32_MIV

• SOC_RISCV_SIFIVE_FREEDOM

• CPU_ARCEM

• ARMV6_M_ARMV8_M_BASELINE

• XTENSA_NO_IPC

• NIOS2

Kconfig definition

At kernel/Kconfig:393

Included via Kconfig:8 → Kconfig.zephyr:30

Menu path: (Top) → 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.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)