CONFIG_ERRNO

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.

Symbol:

ERRNO
Type:

bool
Value:

“y”
User value:

(no user value)
Visibility:

“y”
Is choice item:

false
Is defined:

true
Is from env.:

false
Is special:

false
Prompts:
  • “Enable errno support”
Default values:
  • y (value: “y”)
  • Condition: (none)
Selects:

(no selects)
Reverse (select-related) dependencies:
 

(no reverse dependencies)
Additional dependencies from enclosing menus and ifs:
 

(no additional dependencies)
Locations:
  • ../kernel/nanokernel/Kconfig:93