1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef __ASM_X64_MSGBUF_H
3#define __ASM_X64_MSGBUF_H
4
5#if !defined(__x86_64__) || !defined(__ILP32__)
6#include <asm-generic/msgbuf.h>
7#else
8
9#include <asm/ipcbuf.h>
10
11/*
12 * The msqid64_ds structure for x86 architecture with x32 ABI.
13 *
14 * On x86-32 and x86-64 we can just use the generic definition, but
15 * x32 uses the same binary layout as x86_64, which is different
16 * from other 32-bit architectures.
17 */
18
19struct msqid64_ds {
20 struct ipc64_perm msg_perm;
21 __kernel_long_t msg_stime; /* last msgsnd time */
22 __kernel_long_t msg_rtime; /* last msgrcv time */
23 __kernel_long_t msg_ctime; /* last change time */
24 __kernel_ulong_t msg_cbytes; /* current number of bytes on queue */
25 __kernel_ulong_t msg_qnum; /* number of messages in queue */
26 __kernel_ulong_t msg_qbytes; /* max number of bytes on queue */
27 __kernel_pid_t msg_lspid; /* pid of last msgsnd */
28 __kernel_pid_t msg_lrpid; /* last receive pid */
29 __kernel_ulong_t __unused4;
30 __kernel_ulong_t __unused5;
31};
32
33#endif
34
35#endif /* __ASM_GENERIC_MSGBUF_H */
36

source code of linux/arch/x86/include/uapi/asm/msgbuf.h