1/*
2 * Copyright (c) 2000-2018 Apple Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28/* Copyright 1995 NeXT Computer, Inc. All rights reserved. */
29/*
30 * Copyright (c) 1991, 1993
31 * The Regents of the University of California. All rights reserved.
32 *
33 * This code is derived from software contributed to Berkeley by
34 * Berkeley Software Design, Inc.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 * 3. All advertising materials mentioning features or use of this software
45 * must display the following acknowledgement:
46 * This product includes software developed by the University of
47 * California, Berkeley and its contributors.
48 * 4. Neither the name of the University nor the names of its contributors
49 * may be used to endorse or promote products derived from this software
50 * without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
55 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
62 * SUCH DAMAGE.
63 *
64 * @(#)cdefs.h 8.8 (Berkeley) 1/9/95
65 */
66
67#ifndef _CDEFS_H_
68#define _CDEFS_H_
69
70#if defined(__cplusplus)
71#define __BEGIN_DECLS extern "C" {
72#define __END_DECLS }
73#else
74#define __BEGIN_DECLS
75#define __END_DECLS
76#endif
77
78/* This SDK is designed to work with clang and specific versions of
79 * gcc >= 4.0 with Apple's patch sets */
80#if !defined(__GNUC__) || __GNUC__ < 4
81#warning "Unsupported compiler detected"
82#endif
83
84/*
85 * Compatibility with compilers and environments that don't support compiler
86 * feature checking function-like macros.
87 */
88#ifndef __has_builtin
89#define __has_builtin(x) 0
90#endif
91#ifndef __has_include
92#define __has_include(x) 0
93#endif
94#ifndef __has_feature
95#define __has_feature(x) 0
96#endif
97#ifndef __has_attribute
98#define __has_attribute(x) 0
99#endif
100#ifndef __has_extension
101#define __has_extension(x) 0
102#endif
103
104/*
105 * The __CONCAT macro is used to concatenate parts of symbol names, e.g.
106 * with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
107 * The __CONCAT macro is a bit tricky -- make sure you don't put spaces
108 * in between its arguments. __CONCAT can also concatenate double-quoted
109 * strings produced by the __STRING macro, but this only works with ANSI C.
110 */
111#if defined(__STDC__) || defined(__cplusplus)
112#define __P(protos) protos /* full-blown ANSI C */
113#define __CONCAT(x, y) x ## y
114#define __STRING(x) #x
115
116#define __const const /* define reserved names to standard */
117#define __signed signed
118#define __volatile volatile
119#if defined(__cplusplus)
120#define __inline inline /* convert to C++ keyword */
121#else
122#ifndef __GNUC__
123#define __inline /* delete GCC keyword */
124#endif /* !__GNUC__ */
125#endif /* !__cplusplus */
126
127#else /* !(__STDC__ || __cplusplus) */
128#define __P(protos) () /* traditional C preprocessor */
129#define __CONCAT(x, y) x /**/ y
130#define __STRING(x) "x"
131
132#ifndef __GNUC__
133#define __const /* delete pseudo-ANSI C keywords */
134#define __inline
135#define __signed
136#define __volatile
137#endif /* !__GNUC__ */
138
139/*
140 * In non-ANSI C environments, new programs will want ANSI-only C keywords
141 * deleted from the program and old programs will want them left alone.
142 * When using a compiler other than gcc, programs using the ANSI C keywords
143 * const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS.
144 * When using "gcc -traditional", we assume that this is the intent; if
145 * __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone.
146 */
147#ifndef NO_ANSI_KEYWORDS
148#define const __const /* convert ANSI C keywords */
149#define inline __inline
150#define signed __signed
151#define volatile __volatile
152#endif /* !NO_ANSI_KEYWORDS */
153#endif /* !(__STDC__ || __cplusplus) */
154
155#define __dead2 __attribute__((noreturn))
156#define __pure2 __attribute__((const))
157
158/* __unused denotes variables and functions that may not be used, preventing
159 * the compiler from warning about it if not used.
160 */
161#define __unused __attribute__((unused))
162
163/* __used forces variables and functions to be included even if it appears
164 * to the compiler that they are not used (and would thust be discarded).
165 */
166#define __used __attribute__((used))
167
168/* __deprecated causes the compiler to produce a warning when encountering
169 * code using the deprecated functionality.
170 * __deprecated_msg() does the same, and compilers that support it will print
171 * a message along with the deprecation warning.
172 * This may require turning on such warning with the -Wdeprecated flag.
173 * __deprecated_enum_msg() should be used on enums, and compilers that support
174 * it will print the deprecation warning.
175 */
176#define __deprecated __attribute__((deprecated))
177
178#if __has_extension(attribute_deprecated_with_message) || \
179 (defined(__GNUC__) && ((__GNUC__ >= 5) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5))))
180 #define __deprecated_msg(_msg) __attribute__((deprecated(_msg)))
181#else
182 #define __deprecated_msg(_msg) __attribute__((deprecated))
183#endif
184
185#if __has_extension(enumerator_attributes)
186 #define __deprecated_enum_msg(_msg) __deprecated_msg(_msg)
187#else
188 #define __deprecated_enum_msg(_msg)
189#endif
190
191/* __unavailable causes the compiler to error out when encountering
192 * code using the tagged function of variable.
193 */
194#define __unavailable __attribute__((unavailable))
195
196/* Delete pseudo-keywords wherever they are not available or needed. */
197#ifndef __dead
198#define __dead
199#define __pure
200#endif
201
202/*
203 * We use `__restrict' as a way to define the `restrict' type qualifier
204 * without disturbing older software that is unaware of C99 keywords.
205 */
206#if __STDC_VERSION__ < 199901
207#define __restrict
208#else
209#define __restrict restrict
210#endif
211
212/* Compatibility with compilers and environments that don't support the
213 * nullability feature.
214 */
215
216#if !__has_feature(nullability)
217#ifndef __nullable
218#define __nullable
219#endif
220#ifndef __nonnull
221#define __nonnull
222#endif
223#ifndef __null_unspecified
224#define __null_unspecified
225#endif
226#ifndef _Nullable
227#define _Nullable
228#endif
229#ifndef _Nonnull
230#define _Nonnull
231#endif
232#ifndef _Null_unspecified
233#define _Null_unspecified
234#endif
235#endif
236
237/*
238 * __disable_tail_calls causes the compiler to not perform tail call
239 * optimization inside the marked function.
240 */
241#if __has_attribute(disable_tail_calls)
242#define __disable_tail_calls __attribute__((__disable_tail_calls__))
243#else
244#define __disable_tail_calls
245#endif
246
247/*
248 * __not_tail_called causes the compiler to prevent tail call optimization
249 * on statically bound calls to the function. It has no effect on indirect
250 * calls. Virtual functions, objective-c methods, and functions marked as
251 * "always_inline" cannot be marked as __not_tail_called.
252 */
253#if __has_attribute(not_tail_called)
254#define __not_tail_called __attribute__((__not_tail_called__))
255#else
256#define __not_tail_called
257#endif
258
259/*
260 * __result_use_check warns callers of a function that not using the function
261 * return value is a bug, i.e. dismissing malloc() return value results in a
262 * memory leak.
263 */
264#if __has_attribute(warn_unused_result)
265#define __result_use_check __attribute__((__warn_unused_result__))
266#else
267#define __result_use_check
268#endif
269
270/*
271 * __swift_unavailable causes the compiler to mark a symbol as specifically
272 * unavailable in Swift, regardless of any other availability in C.
273 */
274#if __has_feature(attribute_availability_swift)
275#define __swift_unavailable(_msg) __attribute__((__availability__(swift, unavailable, message=_msg)))
276#else
277#define __swift_unavailable(_msg)
278#endif
279
280/* Declaring inline functions within headers is error-prone due to differences
281 * across various versions of the C language and extensions. __header_inline
282 * can be used to declare inline functions within system headers. In cases
283 * where you want to force inlining instead of letting the compiler make
284 * the decision, you can use __header_always_inline.
285 *
286 * Be aware that using inline for functions which compilers may also provide
287 * builtins can behave differently under various compilers. If you intend to
288 * provide an inline version of such a function, you may want to use a macro
289 * instead.
290 *
291 * The check for !__GNUC__ || __clang__ is because gcc doesn't correctly
292 * support c99 inline in some cases:
293 * http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55965
294 */
295
296#if defined(__cplusplus) || \
297 (__STDC_VERSION__ >= 199901L && \
298 !defined(__GNUC_GNU_INLINE__) && \
299 (!defined(__GNUC__) || defined(__clang__)))
300# define __header_inline inline
301#elif defined(__GNUC__) && defined(__GNUC_STDC_INLINE__)
302# define __header_inline extern __inline __attribute__((__gnu_inline__))
303#elif defined(__GNUC__)
304# define __header_inline extern __inline
305#else
306/* If we land here, we've encountered an unsupported compiler,
307 * so hopefully it understands static __inline as a fallback.
308 */
309# define __header_inline static __inline
310#endif
311
312#ifdef __GNUC__
313# define __header_always_inline __header_inline __attribute__ ((__always_inline__))
314#else
315/* Unfortunately, we're using a compiler that we don't know how to force to
316 * inline. Oh well.
317 */
318# define __header_always_inline __header_inline
319#endif
320
321/*
322 * Compiler-dependent macros that bracket portions of code where the
323 * "-Wunreachable-code" warning should be ignored. Please use sparingly.
324 */
325#if defined(__clang__)
326# define __unreachable_ok_push \
327 _Pragma("clang diagnostic push") \
328 _Pragma("clang diagnostic ignored \"-Wunreachable-code\"")
329# define __unreachable_ok_pop \
330 _Pragma("clang diagnostic pop")
331#elif defined(__GNUC__) && ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))
332# define __unreachable_ok_push \
333 _Pragma("GCC diagnostic push") \
334 _Pragma("GCC diagnostic ignored \"-Wunreachable-code\"")
335# define __unreachable_ok_pop \
336 _Pragma("GCC diagnostic pop")
337#else
338# define __unreachable_ok_push
339# define __unreachable_ok_pop
340#endif
341
342/*
343 * Compiler-dependent macros to declare that functions take printf-like
344 * or scanf-like arguments. They are null except for versions of gcc
345 * that are known to support the features properly. Functions declared
346 * with these attributes will cause compilation warnings if there is a
347 * mismatch between the format string and subsequent function parameter
348 * types.
349 */
350#define __printflike(fmtarg, firstvararg) \
351 __attribute__((__format__ (__printf__, fmtarg, firstvararg)))
352#define __printf0like(fmtarg, firstvararg) \
353 __attribute__((__format__ (__printf0__, fmtarg, firstvararg)))
354#define __scanflike(fmtarg, firstvararg) \
355 __attribute__((__format__ (__scanf__, fmtarg, firstvararg)))
356
357#define __IDSTRING(name, string) static const char name[] __used = string
358
359#ifndef __COPYRIGHT
360#define __COPYRIGHT(s) __IDSTRING(copyright,s)
361#endif
362
363#ifndef __RCSID
364#define __RCSID(s) __IDSTRING(rcsid,s)
365#endif
366
367#ifndef __SCCSID
368#define __SCCSID(s) __IDSTRING(sccsid,s)
369#endif
370
371#ifndef __PROJECT_VERSION
372#define __PROJECT_VERSION(s) __IDSTRING(project_version,s)
373#endif
374
375/* Source compatibility only, ID string not emitted in object file */
376#ifndef __FBSDID
377#define __FBSDID(s)
378#endif
379
380#ifndef __DECONST
381#define __DECONST(type, var) __CAST_AWAY_QUALIFIER(var, const, type)
382#endif
383
384#ifndef __DEVOLATILE
385#define __DEVOLATILE(type, var) __CAST_AWAY_QUALIFIER(var, volatile, type)
386#endif
387
388#ifndef __DEQUALIFY
389#define __DEQUALIFY(type, var) __CAST_AWAY_QUALIFIER(var, const volatile, type)
390#endif
391
392/*
393 * __alloc_size can be used to label function arguments that represent the
394 * size of memory that the function allocates and returns. The one-argument
395 * form labels a single argument that gives the allocation size (where the
396 * arguments are numbered from 1):
397 *
398 * void *malloc(size_t __size) __alloc_size(1);
399 *
400 * The two-argument form handles the case where the size is calculated as the
401 * product of two arguments:
402 *
403 * void *calloc(size_t __count, size_t __size) __alloc_size(1,2);
404 */
405#ifndef __alloc_size
406#if __has_attribute(alloc_size)
407#define __alloc_size(...) __attribute__((alloc_size(__VA_ARGS__)))
408#else
409#define __alloc_size(...)
410#endif
411#endif // __alloc_size
412
413/*
414 * COMPILATION ENVIRONMENTS -- see compat(5) for additional detail
415 *
416 * DEFAULT By default newly complied code will get POSIX APIs plus
417 * Apple API extensions in scope.
418 *
419 * Most users will use this compilation environment to avoid
420 * behavioral differences between 32 and 64 bit code.
421 *
422 * LEGACY Defining _NONSTD_SOURCE will get pre-POSIX APIs plus Apple
423 * API extensions in scope.
424 *
425 * This is generally equivalent to the Tiger release compilation
426 * environment, except that it cannot be applied to 64 bit code;
427 * its use is discouraged.
428 *
429 * We expect this environment to be deprecated in the future.
430 *
431 * STRICT Defining _POSIX_C_SOURCE or _XOPEN_SOURCE restricts the
432 * available APIs to exactly the set of APIs defined by the
433 * corresponding standard, based on the value defined.
434 *
435 * A correct, portable definition for _POSIX_C_SOURCE is 200112L.
436 * A correct, portable definition for _XOPEN_SOURCE is 600L.
437 *
438 * Apple API extensions are not visible in this environment,
439 * which can cause Apple specific code to fail to compile,
440 * or behave incorrectly if prototypes are not in scope or
441 * warnings about missing prototypes are not enabled or ignored.
442 *
443 * In any compilation environment, for correct symbol resolution to occur,
444 * function prototypes must be in scope. It is recommended that all Apple
445 * tools users add either the "-Wall" or "-Wimplicit-function-declaration"
446 * compiler flags to their projects to be warned when a function is being
447 * used without a prototype in scope.
448 */
449
450/* These settings are particular to each product. */
451/* Platform: MacOSX */
452#define __DARWIN_ONLY_64_BIT_INO_T 0
453/* #undef __DARWIN_ONLY_UNIX_CONFORMANCE (automatically set for 64-bit) */
454#define __DARWIN_ONLY_VERS_1050 0
455
456/*
457 * The __DARWIN_ALIAS macros are used to do symbol renaming; they allow
458 * legacy code to use the old symbol, thus maintaining binary compatibility
459 * while new code can use a standards compliant version of the same function.
460 *
461 * __DARWIN_ALIAS is used by itself if the function signature has not
462 * changed, it is used along with a #ifdef check for __DARWIN_UNIX03
463 * if the signature has changed. Because the __LP64__ environment
464 * only supports UNIX03 semantics it causes __DARWIN_UNIX03 to be
465 * defined, but causes __DARWIN_ALIAS to do no symbol mangling.
466 *
467 * As a special case, when XCode is used to target a specific version of the
468 * OS, the manifest constant __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__
469 * will be defined by the compiler, with the digits representing major version
470 * time 100 + minor version times 10 (e.g. 10.5 := 1050). If we are targeting
471 * pre-10.5, and it is the default compilation environment, revert the
472 * compilation environment to pre-__DARWIN_UNIX03.
473 */
474#if !defined(__DARWIN_ONLY_UNIX_CONFORMANCE)
475# if defined(__LP64__)
476# define __DARWIN_ONLY_UNIX_CONFORMANCE 1
477# else /* !__LP64__ */
478# define __DARWIN_ONLY_UNIX_CONFORMANCE 0
479# endif /* __LP64__ */
480#endif /* !__DARWIN_ONLY_UNIX_CONFORMANCE */
481
482#if !defined(__DARWIN_UNIX03)
483# if __DARWIN_ONLY_UNIX_CONFORMANCE
484# if defined(_NONSTD_SOURCE)
485# error "Can't define _NONSTD_SOURCE when only UNIX conformance is available."
486# endif /* _NONSTD_SOURCE */
487# define __DARWIN_UNIX03 1
488# elif defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && ((__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ - 0) < 1040)
489# define __DARWIN_UNIX03 0
490# elif defined(_DARWIN_C_SOURCE) || defined(_XOPEN_SOURCE) || defined(_POSIX_C_SOURCE)
491# if defined(_NONSTD_SOURCE)
492# error "Can't define both _NONSTD_SOURCE and any of _DARWIN_C_SOURCE, _XOPEN_SOURCE or _POSIX_C_SOURCE."
493# endif /* _NONSTD_SOURCE */
494# define __DARWIN_UNIX03 1
495# elif defined(_NONSTD_SOURCE)
496# define __DARWIN_UNIX03 0
497# else /* default */
498# if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && ((__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ - 0) < 1050)
499# define __DARWIN_UNIX03 0
500# else /* __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1050 */
501# define __DARWIN_UNIX03 1
502# endif /* __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1050 */
503# endif /* _DARWIN_C_SOURCE || _XOPEN_SOURCE || _POSIX_C_SOURCE || __LP64__ */
504#endif /* !__DARWIN_UNIX03 */
505
506#if !defined(__DARWIN_64_BIT_INO_T)
507# if defined(_DARWIN_USE_64_BIT_INODE)
508# if defined(_DARWIN_NO_64_BIT_INODE)
509# error "Can't define both _DARWIN_USE_64_BIT_INODE and _DARWIN_NO_64_BIT_INODE."
510# endif /* _DARWIN_NO_64_BIT_INODE */
511# define __DARWIN_64_BIT_INO_T 1
512# elif defined(_DARWIN_NO_64_BIT_INODE)
513# if __DARWIN_ONLY_64_BIT_INO_T
514# error "Can't define _DARWIN_NO_64_BIT_INODE when only 64-bit inodes are available."
515# endif /* __DARWIN_ONLY_64_BIT_INO_T */
516# define __DARWIN_64_BIT_INO_T 0
517# else /* default */
518# if __DARWIN_ONLY_64_BIT_INO_T
519# define __DARWIN_64_BIT_INO_T 1
520# elif defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && ((__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ - 0) < 1060) || __DARWIN_UNIX03 == 0
521# define __DARWIN_64_BIT_INO_T 0
522# else /* default */
523# define __DARWIN_64_BIT_INO_T 1
524# endif /* __DARWIN_ONLY_64_BIT_INO_T */
525# endif
526#endif /* !__DARWIN_64_BIT_INO_T */
527
528#if !defined(__DARWIN_VERS_1050)
529# if __DARWIN_ONLY_VERS_1050
530# define __DARWIN_VERS_1050 1
531# elif defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && ((__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ - 0) < 1050) || __DARWIN_UNIX03 == 0
532# define __DARWIN_VERS_1050 0
533# else /* default */
534# define __DARWIN_VERS_1050 1
535# endif
536#endif /* !__DARWIN_VERS_1050 */
537
538#if !defined(__DARWIN_NON_CANCELABLE)
539# define __DARWIN_NON_CANCELABLE 0
540#endif /* !__DARWIN_NON_CANCELABLE */
541
542/*
543 * symbol suffixes used for symbol versioning
544 */
545#if __DARWIN_UNIX03
546# if __DARWIN_ONLY_UNIX_CONFORMANCE
547# define __DARWIN_SUF_UNIX03 /* nothing */
548# else /* !__DARWIN_ONLY_UNIX_CONFORMANCE */
549# define __DARWIN_SUF_UNIX03 "$UNIX2003"
550# endif /* __DARWIN_ONLY_UNIX_CONFORMANCE */
551
552# if __DARWIN_64_BIT_INO_T
553# if __DARWIN_ONLY_64_BIT_INO_T
554# define __DARWIN_SUF_64_BIT_INO_T /* nothing */
555# else /* !__DARWIN_ONLY_64_BIT_INO_T */
556# define __DARWIN_SUF_64_BIT_INO_T "$INODE64"
557# endif /* __DARWIN_ONLY_64_BIT_INO_T */
558# else /* !__DARWIN_64_BIT_INO_T */
559# define __DARWIN_SUF_64_BIT_INO_T /* nothing */
560# endif /* __DARWIN_64_BIT_INO_T */
561
562# if __DARWIN_VERS_1050
563# if __DARWIN_ONLY_VERS_1050
564# define __DARWIN_SUF_1050 /* nothing */
565# else /* !__DARWIN_ONLY_VERS_1050 */
566# define __DARWIN_SUF_1050 "$1050"
567# endif /* __DARWIN_ONLY_VERS_1050 */
568# else /* !__DARWIN_VERS_1050 */
569# define __DARWIN_SUF_1050 /* nothing */
570# endif /* __DARWIN_VERS_1050 */
571
572# if __DARWIN_NON_CANCELABLE
573# define __DARWIN_SUF_NON_CANCELABLE "$NOCANCEL"
574# else /* !__DARWIN_NON_CANCELABLE */
575# define __DARWIN_SUF_NON_CANCELABLE /* nothing */
576# endif /* __DARWIN_NON_CANCELABLE */
577
578#else /* !__DARWIN_UNIX03 */
579# define __DARWIN_SUF_UNIX03 /* nothing */
580# define __DARWIN_SUF_64_BIT_INO_T /* nothing */
581# define __DARWIN_SUF_NON_CANCELABLE /* nothing */
582# define __DARWIN_SUF_1050 /* nothing */
583#endif /* __DARWIN_UNIX03 */
584
585#define __DARWIN_SUF_EXTSN "$DARWIN_EXTSN"
586
587/*
588 * symbol versioning macros
589 */
590#define __DARWIN_ALIAS(sym) __asm("_" __STRING(sym) __DARWIN_SUF_UNIX03)
591#define __DARWIN_ALIAS_C(sym) __asm("_" __STRING(sym) __DARWIN_SUF_NON_CANCELABLE __DARWIN_SUF_UNIX03)
592#define __DARWIN_ALIAS_I(sym) __asm("_" __STRING(sym) __DARWIN_SUF_64_BIT_INO_T __DARWIN_SUF_UNIX03)
593#define __DARWIN_NOCANCEL(sym) __asm("_" __STRING(sym) __DARWIN_SUF_NON_CANCELABLE)
594#define __DARWIN_INODE64(sym) __asm("_" __STRING(sym) __DARWIN_SUF_64_BIT_INO_T)
595
596#define __DARWIN_1050(sym) __asm("_" __STRING(sym) __DARWIN_SUF_1050)
597#define __DARWIN_1050ALIAS(sym) __asm("_" __STRING(sym) __DARWIN_SUF_1050 __DARWIN_SUF_UNIX03)
598#define __DARWIN_1050ALIAS_C(sym) __asm("_" __STRING(sym) __DARWIN_SUF_1050 __DARWIN_SUF_NON_CANCELABLE __DARWIN_SUF_UNIX03)
599#define __DARWIN_1050ALIAS_I(sym) __asm("_" __STRING(sym) __DARWIN_SUF_1050 __DARWIN_SUF_64_BIT_INO_T __DARWIN_SUF_UNIX03)
600#define __DARWIN_1050INODE64(sym) __asm("_" __STRING(sym) __DARWIN_SUF_1050 __DARWIN_SUF_64_BIT_INO_T)
601
602#define __DARWIN_EXTSN(sym) __asm("_" __STRING(sym) __DARWIN_SUF_EXTSN)
603#define __DARWIN_EXTSN_C(sym) __asm("_" __STRING(sym) __DARWIN_SUF_EXTSN __DARWIN_SUF_NON_CANCELABLE)
604
605/*
606 * symbol release macros
607 */
608#include <sys/_symbol_aliasing.h>
609
610#if defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__)
611#define __DARWIN_ALIAS_STARTING(_mac, _iphone, x) __DARWIN_ALIAS_STARTING_IPHONE_##_iphone(x)
612#elif defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__)
613#define __DARWIN_ALIAS_STARTING(_mac, _iphone, x) __DARWIN_ALIAS_STARTING_MAC_##_mac(x)
614#else
615#define __DARWIN_ALIAS_STARTING(_mac, _iphone, x) x
616#endif
617
618
619/*
620 * POSIX.1 requires that the macros we test be defined before any standard
621 * header file is included. This permits us to convert values for feature
622 * testing, as necessary, using only _POSIX_C_SOURCE.
623 *
624 * Here's a quick run-down of the versions:
625 * defined(_POSIX_SOURCE) 1003.1-1988
626 * _POSIX_C_SOURCE == 1L 1003.1-1990
627 * _POSIX_C_SOURCE == 2L 1003.2-1992 C Language Binding Option
628 * _POSIX_C_SOURCE == 199309L 1003.1b-1993
629 * _POSIX_C_SOURCE == 199506L 1003.1c-1995, 1003.1i-1995,
630 * and the omnibus ISO/IEC 9945-1: 1996
631 * _POSIX_C_SOURCE == 200112L 1003.1-2001
632 * _POSIX_C_SOURCE == 200809L 1003.1-2008
633 *
634 * In addition, the X/Open Portability Guide, which is now the Single UNIX
635 * Specification, defines a feature-test macro which indicates the version of
636 * that specification, and which subsumes _POSIX_C_SOURCE.
637 */
638
639/* Deal with IEEE Std. 1003.1-1990, in which _POSIX_C_SOURCE == 1L. */
640#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 1L
641#undef _POSIX_C_SOURCE
642#define _POSIX_C_SOURCE 199009L
643#endif
644
645/* Deal with IEEE Std. 1003.2-1992, in which _POSIX_C_SOURCE == 2L. */
646#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 2L
647#undef _POSIX_C_SOURCE
648#define _POSIX_C_SOURCE 199209L
649#endif
650
651/* Deal with various X/Open Portability Guides and Single UNIX Spec. */
652#ifdef _XOPEN_SOURCE
653#if _XOPEN_SOURCE - 0L >= 700L && (!defined(_POSIX_C_SOURCE) || _POSIX_C_SOURCE - 0L < 200809L)
654#undef _POSIX_C_SOURCE
655#define _POSIX_C_SOURCE 200809L
656#elif _XOPEN_SOURCE - 0L >= 600L && (!defined(_POSIX_C_SOURCE) || _POSIX_C_SOURCE - 0L < 200112L)
657#undef _POSIX_C_SOURCE
658#define _POSIX_C_SOURCE 200112L
659#elif _XOPEN_SOURCE - 0L >= 500L && (!defined(_POSIX_C_SOURCE) || _POSIX_C_SOURCE - 0L < 199506L)
660#undef _POSIX_C_SOURCE
661#define _POSIX_C_SOURCE 199506L
662#endif
663#endif
664
665/*
666 * Deal with all versions of POSIX. The ordering relative to the tests above is
667 * important.
668 */
669#if defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE)
670#define _POSIX_C_SOURCE 198808L
671#endif
672
673/* POSIX C deprecation macros */
674#include <sys/_posix_availability.h>
675
676#define __POSIX_C_DEPRECATED(ver) ___POSIX_C_DEPRECATED_STARTING_##ver
677
678/*
679 * Set a single macro which will always be defined and can be used to determine
680 * the appropriate namespace. For POSIX, these values will correspond to
681 * _POSIX_C_SOURCE value. Currently there are two additional levels corresponding
682 * to ANSI (_ANSI_SOURCE) and Darwin extensions (_DARWIN_C_SOURCE)
683 */
684#define __DARWIN_C_ANSI 010000L
685#define __DARWIN_C_FULL 900000L
686
687#if defined(_ANSI_SOURCE)
688#define __DARWIN_C_LEVEL __DARWIN_C_ANSI
689#elif defined(_POSIX_C_SOURCE) && !defined(_DARWIN_C_SOURCE) && !defined(_NONSTD_SOURCE)
690#define __DARWIN_C_LEVEL _POSIX_C_SOURCE
691#else
692#define __DARWIN_C_LEVEL __DARWIN_C_FULL
693#endif
694
695/* If the developer has neither requested a strict language mode nor a version
696 * of POSIX, turn on functionality provided by __STDC_WANT_LIB_EXT1__ as part
697 * of __DARWIN_C_FULL.
698 */
699#if !defined(__STDC_WANT_LIB_EXT1__) && !defined(__STRICT_ANSI__) && __DARWIN_C_LEVEL >= __DARWIN_C_FULL
700#define __STDC_WANT_LIB_EXT1__ 1
701#endif
702
703/*
704 * long long is not supported in c89 (__STRICT_ANSI__), but g++ -ansi and
705 * c99 still want long longs. While not perfect, we allow long longs for
706 * g++.
707 */
708#if (defined(__STRICT_ANSI__) && (__STDC_VERSION__ - 0 < 199901L) && !defined(__GNUG__))
709#define __DARWIN_NO_LONG_LONG 1
710#else
711#define __DARWIN_NO_LONG_LONG 0
712#endif
713
714/*****************************************
715* Public darwin-specific feature macros
716*****************************************/
717
718/*
719 * _DARWIN_FEATURE_64_BIT_INODE indicates that the ino_t type is 64-bit, and
720 * structures modified for 64-bit inodes (like struct stat) will be used.
721 */
722#if __DARWIN_64_BIT_INO_T
723#define _DARWIN_FEATURE_64_BIT_INODE 1
724#endif
725
726/*
727 * _DARWIN_FEATURE_64_ONLY_BIT_INODE indicates that the ino_t type may only
728 * be 64-bit; there is no support for 32-bit ino_t when this macro is defined
729 * (and non-zero). There is no struct stat64 either, as the regular
730 * struct stat will already be the 64-bit version.
731 */
732#if __DARWIN_ONLY_64_BIT_INO_T
733#define _DARWIN_FEATURE_ONLY_64_BIT_INODE 1
734#endif
735
736/*
737 * _DARWIN_FEATURE_ONLY_VERS_1050 indicates that only those APIs updated
738 * in 10.5 exists; no pre-10.5 variants are available.
739 */
740#if __DARWIN_ONLY_VERS_1050
741#define _DARWIN_FEATURE_ONLY_VERS_1050 1
742#endif
743
744/*
745 * _DARWIN_FEATURE_ONLY_UNIX_CONFORMANCE indicates only UNIX conforming API
746 * are available (the legacy BSD APIs are not available)
747 */
748#if __DARWIN_ONLY_UNIX_CONFORMANCE
749#define _DARWIN_FEATURE_ONLY_UNIX_CONFORMANCE 1
750#endif
751
752/*
753 * _DARWIN_FEATURE_UNIX_CONFORMANCE indicates whether UNIX conformance is on,
754 * and specifies the conformance level (3 is SUSv3)
755 */
756#if __DARWIN_UNIX03
757#define _DARWIN_FEATURE_UNIX_CONFORMANCE 3
758#endif
759
760/*
761 * This macro casts away the qualifier from the variable
762 *
763 * Note: use at your own risk, removing qualifiers can result in
764 * catastrophic run-time failures.
765 */
766#ifndef __CAST_AWAY_QUALIFIER
767#define __CAST_AWAY_QUALIFIER(variable, qualifier, type) (type) (long)(variable)
768#endif
769
770/*
771 * __XNU_PRIVATE_EXTERN is a linkage decoration indicating that a symbol can be
772 * used from other compilation units, but not other libraries or executables.
773 */
774#ifndef __XNU_PRIVATE_EXTERN
775#define __XNU_PRIVATE_EXTERN __attribute__((visibility("hidden")))
776#endif
777
778/*
779 * Architecture validation for current SDK
780 */
781#if !defined(__sys_cdefs_arch_unknown__) && defined(__i386__)
782#elif !defined(__sys_cdefs_arch_unknown__) && defined(__x86_64__)
783#else
784#error Unsupported architecture
785#endif
786
787
788
789#define __compiler_barrier() __asm__ __volatile__("" ::: "memory")
790
791#endif /* !_CDEFS_H_ */
792