1 /* bits/typesizes.h -- underlying types for *_t. Linux/x86-64 version.
2 Copyright (C) 2012-2015 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 <http://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 __DADDR_T_TYPE __S32_TYPE
68 #define __KEY_T_TYPE __S32_TYPE
69 #define __CLOCKID_T_TYPE __S32_TYPE
70 #define __TIMER_T_TYPE void *
71 #define __BLKSIZE_T_TYPE __SYSCALL_SLONG_TYPE
72 #define __FSID_T_TYPE struct { int __val[2]; }
73 #define __SSIZE_T_TYPE __SWORD_TYPE
74
75 #ifdef __x86_64__
76 /* Tell the libc code that off_t and off64_t are actually the same type
77 for all ABI purposes, even if possibly expressed as different base types
78 for C type-checking purposes. */
79 # define __OFF_T_MATCHES_OFF64_T 1
80
81 /* Same for ino_t and ino64_t. */
82 # define __INO_T_MATCHES_INO64_T 1
83 #endif
84
85 /* Number of descriptors that can fit in an `fd_set'. */
86 #define __FD_SETSIZE 1024
87
88
89 #endif /* bits/typesizes.h */
90