include/bits/typesizes.h

   1 /* bits/typesizes.h -- underlying types for *_t.  Linux/x86-64 version.
   2    Copyright (C) 2012-2021 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _BITS_TYPES_H
  20 # error "Never include <bits/typesizes.h> directly; use <sys/types.h> instead."
  21 #endif
  22
  23 #ifndef _BITS_TYPESIZES_H
  24 #define _BITS_TYPESIZES_H       1
  25
  26 /* See <bits/types.h> for the meaning of these macros.  This file exists so
  27    that <bits/types.h> need not vary across different GNU platforms.  */
  28
  29 /* X32 kernel interface is 64-bit.  */
  30 #if defined __x86_64__ && defined __ILP32__
  31 # define __SYSCALL_SLONG_TYPE   __SQUAD_TYPE
  32 # define __SYSCALL_ULONG_TYPE   __UQUAD_TYPE
  33 #else
  34 # define __SYSCALL_SLONG_TYPE   __SLONGWORD_TYPE
  35 # define __SYSCALL_ULONG_TYPE   __ULONGWORD_TYPE
  36 #endif
  37
  38 #define __DEV_T_TYPE            __UQUAD_TYPE
  39 #define __UID_T_TYPE            __U32_TYPE
  40 #define __GID_T_TYPE            __U32_TYPE
  41 #define __INO_T_TYPE            __SYSCALL_ULONG_TYPE
  42 #define __INO64_T_TYPE          __UQUAD_TYPE
  43 #define __MODE_T_TYPE           __U32_TYPE
  44 #ifdef __x86_64__
  45 # define __NLINK_T_TYPE         __SYSCALL_ULONG_TYPE
  46 # define __FSWORD_T_TYPE        __SYSCALL_SLONG_TYPE
  47 #else
  48 # define __NLINK_T_TYPE         __UWORD_TYPE
  49 # define __FSWORD_T_TYPE        __SWORD_TYPE
  50 #endif
  51 #define __OFF_T_TYPE            __SYSCALL_SLONG_TYPE
  52 #define __OFF64_T_TYPE          __SQUAD_TYPE
  53 #define __PID_T_TYPE            __S32_TYPE
  54 #define __RLIM_T_TYPE           __SYSCALL_ULONG_TYPE
  55 #define __RLIM64_T_TYPE         __UQUAD_TYPE
  56 #define __BLKCNT_T_TYPE         __SYSCALL_SLONG_TYPE
  57 #define __BLKCNT64_T_TYPE       __SQUAD_TYPE
  58 #define __FSBLKCNT_T_TYPE       __SYSCALL_ULONG_TYPE
  59 #define __FSBLKCNT64_T_TYPE     __UQUAD_TYPE
  60 #define __FSFILCNT_T_TYPE       __SYSCALL_ULONG_TYPE
  61 #define __FSFILCNT64_T_TYPE     __UQUAD_TYPE
  62 #define __ID_T_TYPE             __U32_TYPE
  63 #define __CLOCK_T_TYPE          __SYSCALL_SLONG_TYPE
  64 #define __TIME_T_TYPE           __SYSCALL_SLONG_TYPE
  65 #define __USECONDS_T_TYPE       __U32_TYPE
  66 #define __SUSECONDS_T_TYPE      __SYSCALL_SLONG_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        __SYSCALL_SLONG_TYPE
  73 #define __FSID_T_TYPE           struct { int __val[2]; }
  74 #define __SSIZE_T_TYPE          __SWORD_TYPE
  75 #define __CPU_MASK_TYPE         __SYSCALL_ULONG_TYPE
  76
  77 #ifdef __x86_64__
  78 /* Tell the libc code that off_t and off64_t are actually the same type
  79    for all ABI purposes, even if possibly expressed as different base types
  80    for C type-checking purposes.  */
  81 # define __OFF_T_MATCHES_OFF64_T        1
  82
  83 /* Same for ino_t and ino64_t.  */
  84 # define __INO_T_MATCHES_INO64_T        1
  85
  86 /* And for __rlim_t and __rlim64_t.  */
  87 # define __RLIM_T_MATCHES_RLIM64_T      1
  88
  89 /* And for fsblkcnt_t, fsblkcnt64_t, fsfilcnt_t and fsfilcnt64_t.  */
  90 # define __STATFS_MATCHES_STATFS64  1
  91
  92 /* And for getitimer, setitimer and rusage  */
  93 # define __KERNEL_OLD_TIMEVAL_MATCHES_TIMEVAL64 1
  94 #else
  95 # define __RLIM_T_MATCHES_RLIM64_T      0
  96
  97 # define __STATFS_MATCHES_STATFS64  0
  98
  99 # define __KERNEL_OLD_TIMEVAL_MATCHES_TIMEVAL64 0
 100 #endif
 101
 102 /* Number of descriptors that can fit in an `fd_set'.  */
 103 #define __FD_SETSIZE            1024
 104
 105
 106 #endif /* bits/typesizes.h */