mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-01 17:30:07 +00:00
82 lines
2.9 KiB
C
82 lines
2.9 KiB
C
/* Copyright (C) 2020-2024 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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef _UNISTD_H
|
|
# error "Never include this file directly. Use <unistd.h> instead"
|
|
#endif
|
|
|
|
#include <bits/wordsize.h>
|
|
|
|
/* This header should define the following symbols under the described
|
|
situations. A value `1' means that the model is always supported,
|
|
`-1' means it is never supported. Undefined means it cannot be
|
|
statically decided.
|
|
|
|
_POSIX_V7_ILP32_OFF32 32bit int, long, pointers, and off_t type
|
|
_POSIX_V7_ILP32_OFFBIG 32bit int, long, and pointers and larger off_t type
|
|
|
|
_POSIX_V7_LP64_OFF32 64bit long and pointers and 32bit off_t type
|
|
_POSIX_V7_LPBIG_OFFBIG 64bit long and pointers and large off_t type
|
|
|
|
The macros _POSIX_V6_ILP32_OFF32, _POSIX_V6_ILP32_OFFBIG,
|
|
_POSIX_V6_LP64_OFF32, _POSIX_V6_LPBIG_OFFBIG, _XBS5_ILP32_OFF32,
|
|
_XBS5_ILP32_OFFBIG, _XBS5_LP64_OFF32, and _XBS5_LPBIG_OFFBIG were
|
|
used in previous versions of the Unix standard and are available
|
|
only for compatibility.
|
|
*/
|
|
|
|
#if __WORDSIZE == 64
|
|
|
|
/* We can never provide environments with 32-bit wide pointers. */
|
|
# define _POSIX_V7_ILP32_OFF32 -1
|
|
# define _POSIX_V7_ILP32_OFFBIG -1
|
|
# define _POSIX_V6_ILP32_OFF32 -1
|
|
# define _POSIX_V6_ILP32_OFFBIG -1
|
|
# define _XBS5_ILP32_OFF32 -1
|
|
# define _XBS5_ILP32_OFFBIG -1
|
|
/* We also have no use (for now) for an environment with bigger pointers
|
|
and offsets. */
|
|
# define _POSIX_V7_LPBIG_OFFBIG -1
|
|
# define _POSIX_V6_LPBIG_OFFBIG -1
|
|
# define _XBS5_LPBIG_OFFBIG -1
|
|
|
|
/* By default we have 64-bit wide `long int', pointers and `off_t'. */
|
|
# define _POSIX_V7_LP64_OFF64 1
|
|
# define _POSIX_V6_LP64_OFF64 1
|
|
# define _XBS5_LP64_OFF64 1
|
|
|
|
#else /* __WORDSIZE == 32 */
|
|
|
|
/* RISC-V requires 64-bit off_t */
|
|
# define _POSIX_V7_ILP32_OFF32 -1
|
|
# define _POSIX_V6_ILP32_OFF32 -1
|
|
# define _XBS5_ILP32_OFF32 -1
|
|
|
|
# define _POSIX_V7_ILP32_OFFBIG 1
|
|
# define _POSIX_V6_ILP32_OFFBIG 1
|
|
# define _XBS5_ILP32_OFFBIG 1
|
|
|
|
/* We can never provide environments with 64-bit wide pointers. */
|
|
# define _POSIX_V7_LP64_OFF64 -1
|
|
# define _POSIX_V7_LPBIG_OFFBIG -1
|
|
# define _POSIX_V6_LP64_OFF64 -1
|
|
# define _POSIX_V6_LPBIG_OFFBIG -1
|
|
# define _XBS5_LP64_OFF64 -1
|
|
# define _XBS5_LPBIG_OFFBIG -1
|
|
|
|
#endif /* __WORDSIZE == 32 */
|