sysdeps/unix/sysv/linux/generic/bits/typesizes.h

   1 /* bits/typesizes.h -- underlying types for *_t.  For the generic Linux ABI.
   2    Copyright (C) 2011-2021 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library.  If not, see
  18    <https://www.gnu.org/licenses/>.  */
  19
  20 #ifndef _BITS_TYPES_H
  21 # error "Never include <bits/typesizes.h> directly; use <sys/types.h> instead."
  22 #endif
  23
  24 #ifndef _BITS_TYPESIZES_H
  25 #define _BITS_TYPESIZES_H       1
  26
  27 /* See <bits/types.h> for the meaning of these macros.  This file exists so
  28    that <bits/types.h> need not vary across different GNU platforms.  */
  29 #if __TIMESIZE == 64 && __WORDSIZE == 32
  30 /* These are the "new" y2038 types defined for architectures added after
  31    the 5.1 kernel.  */
  32 # define __INO_T_TYPE           __UQUAD_TYPE
  33 # define __OFF_T_TYPE           __SQUAD_TYPE
  34 # define __RLIM_T_TYPE          __UQUAD_TYPE
  35 # define __BLKCNT_T_TYPE        __SQUAD_TYPE
  36 # define __FSBLKCNT_T_TYPE      __UQUAD_TYPE
  37 # define __FSFILCNT_T_TYPE      __UQUAD_TYPE
  38 # define __TIME_T_TYPE          __SQUAD_TYPE
  39 # define __SUSECONDS_T_TYPE     __SQUAD_TYPE
  40 #else
  41 # define __INO_T_TYPE           __ULONGWORD_TYPE
  42 # define __OFF_T_TYPE           __SLONGWORD_TYPE
  43 # define __RLIM_T_TYPE          __ULONGWORD_TYPE
  44 # define __BLKCNT_T_TYPE        __SLONGWORD_TYPE
  45 # define __FSBLKCNT_T_TYPE      __ULONGWORD_TYPE
  46 # define __FSFILCNT_T_TYPE      __ULONGWORD_TYPE
  47 # define __TIME_T_TYPE          __SLONGWORD_TYPE
  48 # define __SUSECONDS_T_TYPE     __SLONGWORD_TYPE
  49 #endif
  50
  51 #define __DEV_T_TYPE            __UQUAD_TYPE
  52 #define __UID_T_TYPE            __U32_TYPE
  53 #define __GID_T_TYPE            __U32_TYPE
  54 #define __INO64_T_TYPE          __UQUAD_TYPE
  55 #define __MODE_T_TYPE           __U32_TYPE
  56 #define __NLINK_T_TYPE          __U32_TYPE
  57 #define __OFF64_T_TYPE          __SQUAD_TYPE
  58 #define __PID_T_TYPE            __S32_TYPE
  59 #define __RLIM64_T_TYPE         __UQUAD_TYPE
  60 #define __BLKCNT64_T_TYPE       __SQUAD_TYPE
  61 #define __FSBLKCNT64_T_TYPE     __UQUAD_TYPE
  62 #define __FSFILCNT64_T_TYPE     __UQUAD_TYPE
  63 #define __FSWORD_T_TYPE         __SWORD_TYPE
  64 #define __ID_T_TYPE             __U32_TYPE
  65 #define __CLOCK_T_TYPE          __SLONGWORD_TYPE
  66 #define __USECONDS_T_TYPE       __U32_TYPE
  67 #define __SUSECONDS64_T_TYPE    __SQUAD_TYPE
  68 #define __DADDR_T_TYPE          __S32_TYPE
  69 #define __KEY_T_TYPE            __S32_TYPE
  70 #define __CLOCKID_T_TYPE        __S32_TYPE
  71 #define __TIMER_T_TYPE          void *
  72 #define __BLKSIZE_T_TYPE        __S32_TYPE
  73 #define __FSID_T_TYPE           struct { int __val[2]; }
  74 #define __SSIZE_T_TYPE          __SWORD_TYPE
  75 #define __SYSCALL_SLONG_TYPE    __SLONGWORD_TYPE
  76 #define __SYSCALL_ULONG_TYPE    __ULONGWORD_TYPE
  77 #define __CPU_MASK_TYPE         __ULONGWORD_TYPE
  78
  79 #if defined __LP64__ || (__TIMESIZE == 64 && __WORDSIZE == 32)
  80 /* Tell the libc code that off_t and off64_t are actually the same type
  81    for all ABI purposes, even if possibly expressed as different base types
  82    for C type-checking purposes.  */
  83 # define __OFF_T_MATCHES_OFF64_T        1
  84
  85 /* Same for ino_t and ino64_t.  */
  86 # define __INO_T_MATCHES_INO64_T        1
  87
  88 /* And for __rlim_t and __rlim64_t.  */
  89 # define __RLIM_T_MATCHES_RLIM64_T      1
  90
  91 /* And for fsblkcnt_t, fsblkcnt64_t, fsfilcnt_t and fsfilcnt64_t.  */
  92 # define __STATFS_MATCHES_STATFS64  1
  93
  94 /* And for getitimer, setitimer and rusage  */
  95 # define __KERNEL_OLD_TIMEVAL_MATCHES_TIMEVAL64 (__WORDSIZE == 64)
  96 #else
  97 # define __RLIM_T_MATCHES_RLIM64_T      0
  98
  99 # define __STATFS_MATCHES_STATFS64  0
 100
 101 # define __KERNEL_OLD_TIMEVAL_MATCHES_TIMEVAL64 0
 102 #endif
 103
 104 /* Number of descriptors that can fit in an `fd_set'.  */
 105 #define __FD_SETSIZE            1024
 106
 107
 108 #endif /* bits/typesizes.h */