CONFIG_USERSPACE

When enabled, threads may be created or dropped down to user mode, which has significantly restricted permissions and must interact with the kernel via system calls. See Zephyr documentation for more details about this feature.

If a user thread overflows its stack, this will be caught and the kernel itself will be shielded from harm. Enabling this option may or may not catch stack overflows when the system is in privileged mode or handling a system call; to ensure these are always caught, enable CONFIG_HW_STACK_PROTECTION.

This feature is under heavy development and APIs related to it are subject to change, even if declared non-private.

Symbol:

USERSPACE

Type:

bool

Value:

“n”

User value:

(no user value)

Visibility:

“n”

Is choice item:

false

Is defined:

true

Is from env.:

false

Is special:

false

Prompts:

• “User mode threads (EXPERIMENTAL)” if ARCH_HAS_USERSPACE (value: “n”)

Default values:

(no default values)

Selects:

(no selects)

Reverse (select-related) dependencies:  

(no reverse dependencies)

Additional dependencies from enclosing menus and ifs:  

(no additional dependencies)

Locations:

• ../arch/Kconfig:54