/usr/s390x-linux-gnu/include/linux/stddef.h is in linux-libc-dev-s390x-cross 4.15.0-18.19cross1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef __always_inline
#define __always_inline __inline__
#endif
|