usr/include/asm/sembuf.h000064400000002025147205162270011217 0ustar00/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _ASM_X86_SEMBUF_H #define _ASM_X86_SEMBUF_H /* * The semid64_ds structure for x86 architecture. * Note extra padding because this structure is passed back and forth * between kernel and user space. * * Pad space is left for: * - 2 miscellaneous 32-bit values * * x86_64 and x32 incorrectly added padding here, so the structures * are still incompatible with the padding on x86. */ struct semid64_ds { struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ #ifdef __i386__ unsigned long sem_otime; /* last semop time */ unsigned long sem_otime_high; unsigned long sem_ctime; /* last change time */ unsigned long sem_ctime_high; #else __kernel_time_t sem_otime; /* last semop time */ __kernel_ulong_t __unused1; __kernel_time_t sem_ctime; /* last change time */ __kernel_ulong_t __unused2; #endif __kernel_ulong_t sem_nsems; /* no. of semaphores in array */ __kernel_ulong_t __unused3; __kernel_ulong_t __unused4; }; #endif /* _ASM_X86_SEMBUF_H */ usr/include/asm-generic/sembuf.h000064400000003016147205301410012621 0ustar00/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef __ASM_GENERIC_SEMBUF_H #define __ASM_GENERIC_SEMBUF_H #include /* * The semid64_ds structure for x86 architecture. * Note extra padding because this structure is passed back and forth * between kernel and user space. * * semid64_ds was originally meant to be architecture specific, but * everyone just ended up making identical copies without specific * optimizations, so we may just as well all use the same one. * * 64 bit architectures use a 64-bit __kernel_time_t here, while * 32 bit architectures have a pair of unsigned long values. * so they do not need the first two padding words. * * On big-endian systems, the padding is in the wrong place for * historic reasons, so user space has to reconstruct a time_t * value using * * user_semid_ds.sem_otime = kernel_semid64_ds.sem_otime + * ((long long)kernel_semid64_ds.sem_otime_high << 32) * * Pad space is left for 2 miscellaneous 32-bit values */ struct semid64_ds { struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ #if __BITS_PER_LONG == 64 __kernel_time_t sem_otime; /* last semop time */ __kernel_time_t sem_ctime; /* last change time */ #else unsigned long sem_otime; /* last semop time */ unsigned long sem_otime_high; unsigned long sem_ctime; /* last change time */ unsigned long sem_ctime_high; #endif unsigned long sem_nsems; /* no. of semaphores in array */ unsigned long __unused3; unsigned long __unused4; }; #endif /* __ASM_GENERIC_SEMBUF_H */