zephyr/include/sys/errno_private.h
Anas Nashif 896b8d3c50 cleanup: include/: move misc/errno_private.h to sys/errno_private.h
move misc/errno_private.h to sys/errno_private.h and
create a shim for backward-compatibility.

No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.

Related to #16539

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-27 22:55:49 -04:00

37 lines
738 B
C

/*
* 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_ */