zig/lib/libc/include/xtensa-linux-any/asm/shmbuf.h

54 lines
1.6 KiB
C
Raw Permalink Normal View History

2023-06-15 19:04:36 +00:00
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
* include/asm-xtensa/shmbuf.h
*
* The shmid64_ds structure for Xtensa architecture.
* Note extra padding because this structure is passed back and forth
* between kernel and user space, but the padding is on the wrong
* side for big-endian xtensa, for historic reasons.
*
* Pad space is left for:
* - 2 miscellaneous 32-bit values
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2001 - 2005 Tensilica Inc.
*/
#ifndef _XTENSA_SHMBUF_H
#define _XTENSA_SHMBUF_H
#include <asm/ipcbuf.h>
#include <asm/posix_types.h>
struct shmid64_ds {
struct ipc64_perm shm_perm; /* operation perms */
__kernel_size_t shm_segsz; /* size of segment (bytes) */
unsigned long shm_atime; /* last attach time */
unsigned long shm_atime_high;
unsigned long shm_dtime; /* last detach time */
unsigned long shm_dtime_high;
unsigned long shm_ctime; /* last change time */
unsigned long shm_ctime_high;
__kernel_pid_t shm_cpid; /* pid of creator */
__kernel_pid_t shm_lpid; /* pid of last operator */
unsigned long shm_nattch; /* no. of current attaches */
unsigned long __unused4;
unsigned long __unused5;
};
struct shminfo64 {
unsigned long shmmax;
unsigned long shmmin;
unsigned long shmmni;
unsigned long shmseg;
unsigned long shmall;
unsigned long __unused1;
unsigned long __unused2;
unsigned long __unused3;
unsigned long __unused4;
};
#endif /* _XTENSA_SHMBUF_H */