38 lines
1.6 KiB
C
38 lines
1.6 KiB
C
/* Define where padding goes in struct shmid_ds. Generic version.
|
|
Copyright (C) 2018-2019 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef _SYS_SHM_H
|
|
# error "Never use <bits/shm-pad.h> directly; include <sys/shm.h> instead."
|
|
#endif
|
|
|
|
#include <bits/timesize.h>
|
|
|
|
/* On most architectures, padding goes after time fields for 32-bit
|
|
systems and is omitted for 64-bit systems. Some architectures pad
|
|
before time fields instead, or omit padding despite being 32-bit,
|
|
or include it despite being 64-bit. Furthermore, some
|
|
architectures place shm_segsz after the time fields rather than
|
|
before them, with or without padding there. This must match the
|
|
layout used for struct shmid64_ds in <asm/shmbuf.h>, as glibc does
|
|
not do layout conversions for this structure. */
|
|
|
|
#define __SHM_PAD_AFTER_TIME (__TIMESIZE == 32)
|
|
#define __SHM_PAD_BEFORE_TIME 0
|
|
#define __SHM_SEGSZ_AFTER_TIME 0
|
|
#define __SHM_PAD_BETWEEN_TIME_AND_SEGSZ 0
|