1 /* bits/types.h -- definitions of __*_t types underlying *_t types.
2    Copyright (C) 2002, 2003, 2004, 2005, 2007 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 /*
20  * Never include this file directly; use <sys/types.h> instead.
21  */
22 
23 #ifndef	_BITS_TYPES_H
24 #define	_BITS_TYPES_H	1
25 
26 #include <features.h>
27 #include <bits/wordsize.h>
28 
29 #ifdef _LIBC
30 #include <bits/kernel_types.h>
31 #endif
32 
33 /* Convenience types.  */
34 typedef unsigned char __u_char;
35 typedef unsigned short int __u_short;
36 typedef unsigned int __u_int;
37 typedef unsigned long int __u_long;
38 
39 /* Fixed-size types, underlying types depend on word size and compiler.  */
40 typedef signed char __int8_t;
41 typedef unsigned char __uint8_t;
42 typedef signed short int __int16_t;
43 typedef unsigned short int __uint16_t;
44 typedef signed int __int32_t;
45 typedef unsigned int __uint32_t;
46 #if __WORDSIZE == 64
47 typedef signed long int __int64_t;
48 typedef unsigned long int __uint64_t;
49 #elif defined(__GNUC__) || defined __ICC || defined __TenDRA__
50 __extension__ typedef signed long long int __int64_t;
51 __extension__ typedef unsigned long long int __uint64_t;
52 #endif
53 
54 /* quad_t is also 64 bits.  */
55 #if __WORDSIZE == 64
56 typedef long int __quad_t;
57 typedef unsigned long int __u_quad_t;
58 #elif defined(__GNUC__) || defined __ICC || defined __TenDRA__
59 __extension__ typedef long long int __quad_t;
60 __extension__ typedef unsigned long long int __u_quad_t;
61 #else
62 typedef struct
63 {
64   long __val[2];
65 } __quad_t;
66 typedef struct
67 {
68   __u_long __val[2];
69 } __u_quad_t;
70 #endif
71 
72 
73 /* The machine-dependent file <bits/typesizes.h> defines __*_T_TYPE
74    macros for each of the OS types we define below.  The definitions
75    of those macros must use the following macros for underlying types.
76    We define __S<SIZE>_TYPE and __U<SIZE>_TYPE for the signed and unsigned
77    variants of each of the following integer types on this machine.
78 
79 	16		-- "natural" 16-bit type (always short)
80 	32		-- "natural" 32-bit type (always int)
81 	64		-- "natural" 64-bit type (long or long long)
82 	LONG32		-- 32-bit type, traditionally long
83 	QUAD		-- 64-bit type, always long long
84 	WORD		-- natural type of __WORDSIZE bits (int or long)
85 	LONGWORD	-- type of __WORDSIZE bits, traditionally long
86 
87    We distinguish WORD/LONGWORD, 32/LONG32, and 64/QUAD so that the
88    conventional uses of `long' or `long long' type modifiers match the
89    types we define, even when a less-adorned type would be the same size.
90    This matters for (somewhat) portably writing printf/scanf formats for
91    these types, where using the appropriate l or ll format modifiers can
92    make the typedefs and the formats match up across all GNU platforms.  If
93    we used `long' when it's 64 bits where `long long' is expected, then the
94    compiler would warn about the formats not matching the argument types,
95    and the programmer changing them to shut up the compiler would break the
96    program's portability.
97 
98    Here we assume what is presently the case in all the GCC configurations
99    we support: long long is always 64 bits, long is always word/address size,
100    and int is always 32 bits.  */
101 
102 #define	__S16_TYPE		short int
103 #define __U16_TYPE		unsigned short int
104 #define	__S32_TYPE		int
105 #define __U32_TYPE		unsigned int
106 #define __SLONGWORD_TYPE	long int
107 #define __ULONGWORD_TYPE	unsigned long int
108 #if __WORDSIZE == 32
109 # define __SQUAD_TYPE		__quad_t
110 # define __UQUAD_TYPE		__u_quad_t
111 # define __SWORD_TYPE		int
112 # define __UWORD_TYPE		unsigned int
113 # define __SLONG32_TYPE		long int
114 # define __ULONG32_TYPE		unsigned long int
115 # define __S64_TYPE		__quad_t
116 # define __U64_TYPE		__u_quad_t
117 /* We want __extension__ before typedef's that use nonstandard base types
118    such as `long long' in C89 mode.  */
119 # define __STD_TYPE		__extension__ typedef
120 #elif __WORDSIZE == 64
121 # define __SQUAD_TYPE		long int
122 # define __UQUAD_TYPE		unsigned long int
123 # define __SWORD_TYPE		long int
124 # define __UWORD_TYPE		unsigned long int
125 # define __SLONG32_TYPE		int
126 # define __ULONG32_TYPE		unsigned int
127 # define __S64_TYPE		long int
128 # define __U64_TYPE		unsigned long int
129 /* No need to mark the typedef with __extension__.   */
130 # define __STD_TYPE		typedef
131 #else
132 # error your machine is neither 32 bit or 64 bit ... it must be magical
133 #endif
134 #include <bits/typesizes.h>	/* Defines __*_T_TYPE macros.  */
135 
136 
137 __STD_TYPE __DEV_T_TYPE __dev_t;	/* Type of device numbers.  */
138 __STD_TYPE __UID_T_TYPE __uid_t;	/* Type of user identifications.  */
139 __STD_TYPE __GID_T_TYPE __gid_t;	/* Type of group identifications.  */
140 __STD_TYPE __INO_T_TYPE __ino_t;	/* Type of file serial numbers.  */
141 __STD_TYPE __INO64_T_TYPE __ino64_t;	/* Type of file serial numbers (LFS).*/
142 __STD_TYPE __MODE_T_TYPE __mode_t;	/* Type of file attribute bitmasks.  */
143 __STD_TYPE __NLINK_T_TYPE __nlink_t;	/* Type of file link counts.  */
144 __STD_TYPE __OFF_T_TYPE __off_t;	/* Type of file sizes and offsets.  */
145 __STD_TYPE __OFF64_T_TYPE __off64_t;	/* Type of file sizes and offsets (LFS).  */
146 __STD_TYPE __PID_T_TYPE __pid_t;	/* Type of process identifications.  */
147 __STD_TYPE __FSID_T_TYPE __fsid_t;	/* Type of file system IDs.  */
148 __STD_TYPE __CLOCK_T_TYPE __clock_t;	/* Type of CPU usage counts.  */
149 __STD_TYPE __RLIM_T_TYPE __rlim_t;	/* Type for resource measurement.  */
150 __STD_TYPE __RLIM64_T_TYPE __rlim64_t;	/* Type for resource measurement (LFS).  */
151 __STD_TYPE __ID_T_TYPE __id_t;		/* General type for IDs.  */
152 __STD_TYPE __TIME_T_TYPE __time_t;	/* Seconds since the Epoch.  */
153 __STD_TYPE __USECONDS_T_TYPE __useconds_t; /* Count of microseconds.  */
154 __STD_TYPE __SUSECONDS_T_TYPE __suseconds_t; /* Signed count of microseconds.  */
155 
156 __STD_TYPE __DADDR_T_TYPE __daddr_t;	/* The type of a disk address.  */
157 __STD_TYPE __SWBLK_T_TYPE __swblk_t;	/* Type of a swap block maybe?  */
158 __STD_TYPE __KEY_T_TYPE __key_t;	/* Type of an IPC key.  */
159 
160 /* Clock ID used in clock and timer functions.  */
161 __STD_TYPE __CLOCKID_T_TYPE __clockid_t;
162 
163 /* Timer ID returned by `timer_create'.  */
164 __STD_TYPE __TIMER_T_TYPE __timer_t;
165 
166 /* Type to represent block size.  */
167 __STD_TYPE __BLKSIZE_T_TYPE __blksize_t;
168 
169 /* Types from the Large File Support interface.  */
170 
171 /* Type to count number of disk blocks.  */
172 __STD_TYPE __BLKCNT_T_TYPE __blkcnt_t;
173 __STD_TYPE __BLKCNT64_T_TYPE __blkcnt64_t;
174 
175 /* Type to count file system blocks.  */
176 __STD_TYPE __FSBLKCNT_T_TYPE __fsblkcnt_t;
177 __STD_TYPE __FSBLKCNT64_T_TYPE __fsblkcnt64_t;
178 
179 /* Type to count file system nodes.  */
180 __STD_TYPE __FSFILCNT_T_TYPE __fsfilcnt_t;
181 __STD_TYPE __FSFILCNT64_T_TYPE __fsfilcnt64_t;
182 
183 __STD_TYPE __SSIZE_T_TYPE __ssize_t; /* Type of a byte count, or error.  */
184 
185 /* These few don't really vary by system, they always correspond
186    to one of the other defined types.  */
187 typedef __off64_t __loff_t;	/* Type of file sizes and offsets (LFS).  */
188 typedef __quad_t *__qaddr_t;
189 typedef char *__caddr_t;
190 
191 /* Duplicates info from stdint.h but this is used in unistd.h.  */
192 __STD_TYPE __SWORD_TYPE __intptr_t;
193 
194 /* Duplicate info from sys/socket.h.  */
195 __STD_TYPE __U32_TYPE __socklen_t;
196 
197 
198 #undef __STD_TYPE
199 
200 #endif /* bits/types.h */
201