CONFIG_TOOLCHAIN_HAS_BUILTIN_FFS

(No prompt – not directly user assignable.)

Type: bool

Help

Hidden option to signal that toolchain has __builtin_ffs*().

Default

• y if !(64BIT && RISCV)

Kconfig definition

At <Zephyr>/arch/Kconfig:993

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:39

Menu path: (Top)

config TOOLCHAIN_HAS_BUILTIN_FFS
    bool
    default y if !(64BIT && RISCV)
    help
      Hidden option to signal that toolchain has __builtin_ffs*().

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