blob: a51f37765b1fe3c8dc0cf61e4ec30d7460b7b886 [file] [log] [blame]
/*
* Copyright (c) 2018 Intel Corporation.
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef ZEPHYR_INCLUDE_SYS_ERRNO_PRIVATE_H_
#define ZEPHYR_INCLUDE_SYS_ERRNO_PRIVATE_H_
#include <toolchain.h>
#ifdef __cplusplus
extern "C" {
#endif
/* NOTE: located here to avoid include dependency loops between errno.h
* and kernel.h
*/
/**
* return a pointer to a memory location containing errno
*
* errno is thread-specific, and can't just be a global. This pointer
* is guaranteed to be read/writable from user mode.
*
* @return Memory location of errno data for current thread
*/
__syscall int *z_errno(void);
#ifdef __cplusplus
}
#endif
#include <syscalls/errno_private.h>
#endif /* ZEPHYR_INCLUDE_SYS_ERRNO_PRIVATE_H_ */