--- /dev/null
+/* bits/types.h -- definitions of __*_t types underlying *_t types.
+ Copyright (C) 2002-2018 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
+ <http://www.gnu.org/licenses/>. */
+
+/*
+ * Never include this file directly; use <sys/types.h> instead.
+ */
+
+#ifndef _BITS_TYPES_H
+#define _BITS_TYPES_H 1
+
+#include <features.h>
+#include <bits/wordsize.h>
+
+/* Convenience types. */
+typedef unsigned char __u_char;
+typedef unsigned short int __u_short;
+typedef unsigned int __u_int;
+typedef unsigned long int __u_long;
+
+/* Fixed-size types, underlying types depend on word size and compiler. */
+typedef signed char __int8_t;
+typedef unsigned char __uint8_t;
+typedef signed short int __int16_t;
+typedef unsigned short int __uint16_t;
+typedef signed int __int32_t;
+typedef unsigned int __uint32_t;
+#if __WORDSIZE == 64
+typedef signed long int __int64_t;
+typedef unsigned long int __uint64_t;
+#else
+__extension__ typedef signed long long int __int64_t;
+__extension__ typedef unsigned long long int __uint64_t;
+#endif
+
+/* Smallest types with at least a given width. */
+typedef __int8_t __int_least8_t;
+typedef __uint8_t __uint_least8_t;
+typedef __int16_t __int_least16_t;
+typedef __uint16_t __uint_least16_t;
+typedef __int32_t __int_least32_t;
+typedef __uint32_t __uint_least32_t;
+typedef __int64_t __int_least64_t;
+typedef __uint64_t __uint_least64_t;
+
+/* quad_t is also 64 bits. */
+#if __WORDSIZE == 64
+typedef long int __quad_t;
+typedef unsigned long int __u_quad_t;
+#else
+__extension__ typedef long long int __quad_t;
+__extension__ typedef unsigned long long int __u_quad_t;
+#endif
+
+/* Largest integral types. */
+#if __WORDSIZE == 64
+typedef long int __intmax_t;
+typedef unsigned long int __uintmax_t;
+#else
+__extension__ typedef long long int __intmax_t;
+__extension__ typedef unsigned long long int __uintmax_t;
+#endif
+
+
+/* The machine-dependent file <bits/typesizes.h> defines __*_T_TYPE
+ macros for each of the OS types we define below. The definitions
+ of those macros must use the following macros for underlying types.
+ We define __S<SIZE>_TYPE and __U<SIZE>_TYPE for the signed and unsigned
+ variants of each of the following integer types on this machine.
+
+ 16 -- "natural" 16-bit type (always short)
+ 32 -- "natural" 32-bit type (always int)
+ 64 -- "natural" 64-bit type (long or long long)
+ LONG32 -- 32-bit type, traditionally long
+ QUAD -- 64-bit type, always long long
+ WORD -- natural type of __WORDSIZE bits (int or long)
+ LONGWORD -- type of __WORDSIZE bits, traditionally long
+
+ We distinguish WORD/LONGWORD, 32/LONG32, and 64/QUAD so that the
+ conventional uses of `long' or `long long' type modifiers match the
+ types we define, even when a less-adorned type would be the same size.
+ This matters for (somewhat) portably writing printf/scanf formats for
+ these types, where using the appropriate l or ll format modifiers can
+ make the typedefs and the formats match up across all GNU platforms. If
+ we used `long' when it's 64 bits where `long long' is expected, then the
+ compiler would warn about the formats not matching the argument types,
+ and the programmer changing them to shut up the compiler would break the
+ program's portability.
+
+ Here we assume what is presently the case in all the GCC configurations
+ we support: long long is always 64 bits, long is always word/address size,
+ and int is always 32 bits. */
+
+#define __S16_TYPE short int
+#define __U16_TYPE unsigned short int
+#define __S32_TYPE int
+#define __U32_TYPE unsigned int
+#define __SLONGWORD_TYPE long int
+#define __ULONGWORD_TYPE unsigned long int
+#if __WORDSIZE == 32
+# define __SQUAD_TYPE __quad_t
+# define __UQUAD_TYPE __u_quad_t
+# define __SWORD_TYPE int
+# define __UWORD_TYPE unsigned int
+# define __SLONG32_TYPE long int
+# define __ULONG32_TYPE unsigned long int
+# define __S64_TYPE __quad_t
+# define __U64_TYPE __u_quad_t
+/* We want __extension__ before typedef's that use nonstandard base types
+ such as `long long' in C89 mode. */
+# define __STD_TYPE __extension__ typedef
+#elif __WORDSIZE == 64
+# define __SQUAD_TYPE long int
+# define __UQUAD_TYPE unsigned long int
+# define __SWORD_TYPE long int
+# define __UWORD_TYPE unsigned long int
+# define __SLONG32_TYPE int
+# define __ULONG32_TYPE unsigned int
+# define __S64_TYPE long int
+# define __U64_TYPE unsigned long int
+/* No need to mark the typedef with __extension__. */
+# define __STD_TYPE typedef
+#else
+# error
+#endif
+#include <bits/typesizes.h> /* Defines __*_T_TYPE macros. */
+
+
+__STD_TYPE __DEV_T_TYPE __dev_t; /* Type of device numbers. */
+__STD_TYPE __UID_T_TYPE __uid_t; /* Type of user identifications. */
+__STD_TYPE __GID_T_TYPE __gid_t; /* Type of group identifications. */
+__STD_TYPE __INO_T_TYPE __ino_t; /* Type of file serial numbers. */
+__STD_TYPE __INO64_T_TYPE __ino64_t; /* Type of file serial numbers (LFS).*/
+__STD_TYPE __MODE_T_TYPE __mode_t; /* Type of file attribute bitmasks. */
+__STD_TYPE __NLINK_T_TYPE __nlink_t; /* Type of file link counts. */
+__STD_TYPE __OFF_T_TYPE __off_t; /* Type of file sizes and offsets. */
+__STD_TYPE __OFF64_T_TYPE __off64_t; /* Type of file sizes and offsets (LFS). */
+__STD_TYPE __PID_T_TYPE __pid_t; /* Type of process identifications. */
+__STD_TYPE __FSID_T_TYPE __fsid_t; /* Type of file system IDs. */
+__STD_TYPE __CLOCK_T_TYPE __clock_t; /* Type of CPU usage counts. */
+__STD_TYPE __RLIM_T_TYPE __rlim_t; /* Type for resource measurement. */
+__STD_TYPE __RLIM64_T_TYPE __rlim64_t; /* Type for resource measurement (LFS). */
+__STD_TYPE __ID_T_TYPE __id_t; /* General type for IDs. */
+__STD_TYPE __TIME_T_TYPE __time_t; /* Seconds since the Epoch. */
+__STD_TYPE __USECONDS_T_TYPE __useconds_t; /* Count of microseconds. */
+__STD_TYPE __SUSECONDS_T_TYPE __suseconds_t; /* Signed count of microseconds. */
+
+__STD_TYPE __DADDR_T_TYPE __daddr_t; /* The type of a disk address. */
+__STD_TYPE __KEY_T_TYPE __key_t; /* Type of an IPC key. */
+
+/* Clock ID used in clock and timer functions. */
+__STD_TYPE __CLOCKID_T_TYPE __clockid_t;
+
+/* Timer ID returned by `timer_create'. */
+__STD_TYPE __TIMER_T_TYPE __timer_t;
+
+/* Type to represent block size. */
+__STD_TYPE __BLKSIZE_T_TYPE __blksize_t;
+
+/* Types from the Large File Support interface. */
+
+/* Type to count number of disk blocks. */
+__STD_TYPE __BLKCNT_T_TYPE __blkcnt_t;
+__STD_TYPE __BLKCNT64_T_TYPE __blkcnt64_t;
+
+/* Type to count file system blocks. */
+__STD_TYPE __FSBLKCNT_T_TYPE __fsblkcnt_t;
+__STD_TYPE __FSBLKCNT64_T_TYPE __fsblkcnt64_t;
+
+/* Type to count file system nodes. */
+__STD_TYPE __FSFILCNT_T_TYPE __fsfilcnt_t;
+__STD_TYPE __FSFILCNT64_T_TYPE __fsfilcnt64_t;
+
+/* Type of miscellaneous file system fields. */
+__STD_TYPE __FSWORD_T_TYPE __fsword_t;
+
+__STD_TYPE __SSIZE_T_TYPE __ssize_t; /* Type of a byte count, or error. */
+
+/* Signed long type used in system calls. */
+__STD_TYPE __SYSCALL_SLONG_TYPE __syscall_slong_t;
+/* Unsigned long type used in system calls. */
+__STD_TYPE __SYSCALL_ULONG_TYPE __syscall_ulong_t;
+
+/* These few don't really vary by system, they always correspond
+ to one of the other defined types. */
+typedef __off64_t __loff_t; /* Type of file sizes and offsets (LFS). */
+typedef char *__caddr_t;
+
+/* Duplicates info from stdint.h but this is used in unistd.h. */
+__STD_TYPE __SWORD_TYPE __intptr_t;
+
+/* Duplicate info from sys/socket.h. */
+__STD_TYPE __U32_TYPE __socklen_t;
+
+/* C99: An integer type that can be accessed as an atomic entity,
+ even in the presence of asynchronous interrupts.
+ It is not currently necessary for this to be machine-specific. */
+typedef int __sig_atomic_t;
+
+#undef __STD_TYPE
+
+#endif /* bits/types.h */
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