Help¶

Enable per-thread errno in the kernel. Application and library code must include errno.h provided by the C library (libc) to use the errno symbol. The C library must access the per-thread errno via the _get_errno() symbol.

Default¶

y

Symbols selected by this symbol¶

THREAD_USERSPACE_LOCAL_DATA if USERSPACE

Symbols that select this symbol¶

SIMPLELINK_HOST_DRIVER

Kconfig definition¶

At <Zephyr>/kernel/Kconfig:198

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:30

Menu path: (Top) → General Kernel Options

config ERRNO
    bool "Enable errno support"
    default y
    select THREAD_USERSPACE_LOCAL_DATA if USERSPACE
    help
      Enable per-thread errno in the kernel. Application and library code must
      include errno.h provided by the C library (libc) to use the errno
      symbol. The C library must access the per-thread errno via the
      _get_errno() symbol.

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