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

• y

• y

Symbols that select this symbol

• SOC_RISCV32_LITEX_VEXRISCV

• SOC_OPENISA_RV32M1_RISCV32

• SOC_ESP32S2

• SOC_RISCV32_LITEX_VEXRISCV

• SOC_OPENISA_RV32M1_RISCV32

• SOC_ESP32S2

• SOC_RISCV32_MIV

• SOC_RISCV_SIFIVE_FREEDOM

• SOC_RISCV_SIFIVE_FU540

• SOC_RISCV_SIFIVE_FU740

• SOC_RISCV32_MIV

• SOC_RISCV_SIFIVE_FREEDOM

• SOC_RISCV_SIFIVE_FU540

• SOC_RISCV_SIFIVE_FU740

• CPU_ARCEM

• ARMV6_M_ARMV8_M_BASELINE

• XTENSA_NO_IPC

• SPARC

• NIOS2

Kconfig definitions

At <Zephyr SoC>/riscv/esp32c3/Kconfig.defconfig:32

Included via Kconfig:8 → Kconfig.zephyr:25 → <BuildDir>/kconfig/Kconfig.soc.defconfig:1

Menu path: (Top)

config ATOMIC_OPERATIONS_C
    bool
    default y
    depends on SOC_ESP32C3

---

At <Zephyr SoC>/riscv/esp32c3/Kconfig.defconfig:32

Included via Kconfig:8 → Kconfig.zephyr:27

Menu path: (Top)

config ATOMIC_OPERATIONS_C
    bool
    default y
    depends on SOC_ESP32C3

---

At <Zephyr Kernel>/Kconfig:430

Included via Kconfig:8 → Kconfig.zephyr:40

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.)