1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 #ifndef _ASM_X86_SEMBUF_H 3 #define _ASM_X86_SEMBUF_H 4 5 #include <asm/ipcbuf.h> 6 7 /* 8 * The semid64_ds structure for x86 architecture. 9 * Note extra padding because this structure is passed back and forth 10 * between kernel and user space. 11 * 12 * Pad space is left for: 13 * - 2 miscellaneous 32-bit values 14 * 15 * x86_64 and x32 incorrectly added padding here, so the structures 16 * are still incompatible with the padding on x86. 17 */ 18 struct semid64_ds { 19 struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ 20 #ifdef __i386__ 21 unsigned long sem_otime; /* last semop time */ 22 unsigned long sem_otime_high; 23 unsigned long sem_ctime; /* last change time */ 24 unsigned long sem_ctime_high; 25 #else 26 __kernel_long_t sem_otime; /* last semop time */ 27 __kernel_ulong_t __unused1; 28 __kernel_long_t sem_ctime; /* last change time */ 29 __kernel_ulong_t __unused2; 30 #endif 31 __kernel_ulong_t sem_nsems; /* no. of semaphores in array */ 32 __kernel_ulong_t __unused3; 33 __kernel_ulong_t __unused4; 34 }; 35 36 #endif /* _ASM_X86_SEMBUF_H */ 37