1/* 2 * Copyright (c) 2000-2012 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 * The __CONCAT macro is used to concatenate parts of symbol names, e.g. 86 * with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo. 87 * The __CONCAT macro is a bit tricky -- make sure you don't put spaces 88 * in between its arguments. __CONCAT can also concatenate double-quoted 89 * strings produced by the __STRING macro, but this only works with ANSI C. 90 */ 91#if defined(__STDC__) || defined(__cplusplus) 92#define __P(protos) protos /* full-blown ANSI C */ 93#define __CONCAT(x,y) x ## y 94#define __STRING(x) #x 95 96#define __const const /* define reserved names to standard */ 97#define __signed signed 98#define __volatile volatile 99#if defined(__cplusplus) 100#define __inline inline /* convert to C++ keyword */ 101#else 102#ifndef __GNUC__ 103#define __inline /* delete GCC keyword */ 104#endif /* !__GNUC__ */ 105#endif /* !__cplusplus */ 106 107#else /* !(__STDC__ || __cplusplus) */ 108#define __P(protos) () /* traditional C preprocessor */ 109#define __CONCAT(x,y) x/**/y 110#define __STRING(x) "x" 111 112#ifndef __GNUC__ 113#define __const /* delete pseudo-ANSI C keywords */ 114#define __inline 115#define __signed 116#define __volatile 117#endif /* !__GNUC__ */ 118 119/* 120 * In non-ANSI C environments, new programs will want ANSI-only C keywords 121 * deleted from the program and old programs will want them left alone. 122 * When using a compiler other than gcc, programs using the ANSI C keywords 123 * const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS. 124 * When using "gcc -traditional", we assume that this is the intent; if 125 * __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone. 126 */ 127#ifndef NO_ANSI_KEYWORDS 128#define const __const /* convert ANSI C keywords */ 129#define inline __inline 130#define signed __signed 131#define volatile __volatile 132#endif /* !NO_ANSI_KEYWORDS */ 133#endif /* !(__STDC__ || __cplusplus) */ 134 135#define __dead2 __attribute__((noreturn)) 136#define __pure2 __attribute__((const)) 137 138/* __unused denotes variables and functions that may not be used, preventing 139 * the compiler from warning about it if not used. 140 */ 141#define __unused __attribute__((unused)) 142 143/* __used forces variables and functions to be included even if it appears 144 * to the compiler that they are not used (and would thust be discarded). 145 */ 146#define __used __attribute__((used)) 147 148/* __deprecated causes the compiler to produce a warning when encountering 149 * code using the deprecated functionality. 150 * __deprecated_msg() does the same, and compilers that support it will print 151 * a message along with the deprecation warning. 152 * This may require turning on such warning with the -Wdeprecated flag. 153 * __deprecated_enum_msg() should be used on enums, and compilers that support 154 * it will print the deprecation warning. 155 */ 156#define __deprecated __attribute__((deprecated)) 157 158#ifdef __has_extension 159 #if __has_extension(attribute_deprecated_with_message) 160 #define __deprecated_msg(_msg) __attribute__((deprecated(_msg))) 161 #else 162 #define __deprecated_msg(_msg) __attribute__((deprecated)) 163 #endif 164#elif defined(__GNUC__) && ((__GNUC__ >= 5) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5))) 165 #define __deprecated_msg(_msg) __attribute__((deprecated(_msg))) 166#else 167 #define __deprecated_msg(_msg) __attribute__((deprecated)) 168#endif 169 170#ifdef __has_extension 171 #if __has_extension(enumerator_attributes) 172 #define __deprecated_enum_msg(_msg) __deprecated_msg(_msg) 173 #else 174 #define __deprecated_enum_msg(_msg) 175 #endif 176#else 177 #define __deprecated_enum_msg(_msg) 178#endif 179 180/* __unavailable causes the compiler to error out when encountering 181 * code using the tagged function of variable. 182 */ 183#define __unavailable __attribute__((unavailable)) 184 185/* Delete pseudo-keywords wherever they are not available or needed. */ 186#ifndef __dead 187#define __dead 188#define __pure 189#endif 190 191/* 192 * We use `__restrict' as a way to define the `restrict' type qualifier 193 * without disturbing older software that is unaware of C99 keywords. 194 */ 195#if __STDC_VERSION__ < 199901 196#define __restrict 197#else 198#define __restrict restrict 199#endif 200 201/* Declaring inline functions within headers is error-prone due to differences 202 * across various versions of the C language and extensions. __header_inline 203 * can be used to declare inline functions within system headers. In cases 204 * where you want to force inlining instead of letting the compiler make 205 * the decision, you can use __header_always_inline. 206 * 207 * Be aware that using inline for functions which compilers may also provide 208 * builtins can behave differently under various compilers. If you intend to 209 * provide an inline version of such a function, you may want to use a macro 210 * instead. 211 * 212 * The check for !__GNUC__ || __clang__ is because gcc doesn't correctly 213 * support c99 inline in some cases: 214 * http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55965 215 */ 216 217#if defined(__cplusplus) || \ 218 (__STDC_VERSION__ >= 199901L && \ 219 !defined(__GNUC_GNU_INLINE__) && \ 220 (!defined(__GNUC__) || defined(__clang__))) 221# define __header_inline inline 222#elif defined(__GNUC__) && defined(__GNUC_STDC_INLINE__) 223# define __header_inline extern __inline __attribute__((__gnu_inline__)) 224#elif defined(__GNUC__) 225# define __header_inline extern __inline 226#else 227 /* If we land here, we've encountered an unsupported compiler, 228 * so hopefully it understands static __inline as a fallback. 229 */ 230# define __header_inline static __inline 231#endif 232 233#ifdef __GNUC__ 234# define __header_always_inline __header_inline __attribute__ ((__always_inline__)) 235#else 236 /* Unfortunately, we're using a compiler that we don't know how to force to 237 * inline. Oh well. 238 */ 239# define __header_always_inline __header_inline 240#endif 241 242/* 243 * Compiler-dependent macros that bracket portions of code where the 244 * "-Wunreachable-code" warning should be ignored. Please use sparingly. 245 */ 246#if defined(__clang__) 247# define __unreachable_ok_push \ 248 _Pragma("clang diagnostic push") \ 249 _Pragma("clang diagnostic ignored \"-Wunreachable-code\"") 250# define __unreachable_ok_pop \ 251 _Pragma("clang diagnostic pop") 252#elif defined(__GNUC__) && ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) 253# define __unreachable_ok_push \ 254 _Pragma("GCC diagnostic push") \ 255 _Pragma("GCC diagnostic ignored \"-Wunreachable-code\"") 256# define __unreachable_ok_pop \ 257 _Pragma("GCC diagnostic pop") 258#else 259# define __unreachable_ok_push 260# define __unreachable_ok_pop 261#endif 262 263/* 264 * Compiler-dependent macros to declare that functions take printf-like 265 * or scanf-like arguments. They are null except for versions of gcc 266 * that are known to support the features properly. Functions declared 267 * with these attributes will cause compilation warnings if there is a 268 * mismatch between the format string and subsequent function parameter 269 * types. 270 */ 271#define __printflike(fmtarg, firstvararg) \ 272 __attribute__((__format__ (__printf__, fmtarg, firstvararg))) 273#define __scanflike(fmtarg, firstvararg) \ 274 __attribute__((__format__ (__scanf__, fmtarg, firstvararg))) 275 276#define __IDSTRING(name,string) static const char name[] __used = string 277 278#ifndef __COPYRIGHT 279#define __COPYRIGHT(s) __IDSTRING(copyright,s) 280#endif 281 282#ifndef __RCSID 283#define __RCSID(s) __IDSTRING(rcsid,s) 284#endif 285 286#ifndef __SCCSID 287#define __SCCSID(s) __IDSTRING(sccsid,s) 288#endif 289 290#ifndef __PROJECT_VERSION 291#define __PROJECT_VERSION(s) __IDSTRING(project_version,s) 292#endif 293 294/* Source compatibility only, ID string not emitted in object file */ 295#ifndef __FBSDID 296#define __FBSDID(s) 297#endif 298 299#ifndef __DECONST 300#define __DECONST(type, var) __CAST_AWAY_QUALIFIER(var, const, type) 301#endif 302 303#ifndef __DEVOLATILE 304#define __DEVOLATILE(type, var) __CAST_AWAY_QUALIFIER(var, volatile, type) 305#endif 306 307#ifndef __DEQUALIFY 308#define __DEQUALIFY(type, var) __CAST_AWAY_QUALIFIER(var, const volatile, type) 309#endif 310 311/* 312 * COMPILATION ENVIRONMENTS -- see compat(5) for additional detail 313 * 314 * DEFAULT By default newly complied code will get POSIX APIs plus 315 * Apple API extensions in scope. 316 * 317 * Most users will use this compilation environment to avoid 318 * behavioral differences between 32 and 64 bit code. 319 * 320 * LEGACY Defining _NONSTD_SOURCE will get pre-POSIX APIs plus Apple 321 * API extensions in scope. 322 * 323 * This is generally equivalent to the Tiger release compilation 324 * environment, except that it cannot be applied to 64 bit code; 325 * its use is discouraged. 326 * 327 * We expect this environment to be deprecated in the future. 328 * 329 * STRICT Defining _POSIX_C_SOURCE or _XOPEN_SOURCE restricts the 330 * available APIs to exactly the set of APIs defined by the 331 * corresponding standard, based on the value defined. 332 * 333 * A correct, portable definition for _POSIX_C_SOURCE is 200112L. 334 * A correct, portable definition for _XOPEN_SOURCE is 600L. 335 * 336 * Apple API extensions are not visible in this environment, 337 * which can cause Apple specific code to fail to compile, 338 * or behave incorrectly if prototypes are not in scope or 339 * warnings about missing prototypes are not enabled or ignored. 340 * 341 * In any compilation environment, for correct symbol resolution to occur, 342 * function prototypes must be in scope. It is recommended that all Apple 343 * tools users add either the "-Wall" or "-Wimplicit-function-declaration" 344 * compiler flags to their projects to be warned when a function is being 345 * used without a prototype in scope. 346 */ 347 348/* These settings are particular to each product. */ 349#ifdef KERNEL 350#define __DARWIN_ONLY_64_BIT_INO_T 0 351#define __DARWIN_ONLY_UNIX_CONFORMANCE 0 352#define __DARWIN_ONLY_VERS_1050 0 353#if defined(__x86_64__) 354#define __DARWIN_SUF_DARWIN14 "_darwin14" 355#define __DARWIN14_ALIAS(sym) __asm("_" __STRING(sym) __DARWIN_SUF_DARWIN14) 356#else 357#define __DARWIN14_ALIAS(sym) 358#endif 359#else /* !KERNEL */ 360#ifdef PLATFORM_iPhoneOS 361/* Platform: iPhoneOS */ 362#define __DARWIN_ONLY_64_BIT_INO_T 1 363#define __DARWIN_ONLY_UNIX_CONFORMANCE 1 364#define __DARWIN_ONLY_VERS_1050 1 365#endif /* PLATFORM_iPhoneOS */ 366#ifdef PLATFORM_iPhoneSimulator 367/* Platform: iPhoneSimulator */ 368#define __DARWIN_ONLY_64_BIT_INO_T 1 369#define __DARWIN_ONLY_UNIX_CONFORMANCE 1 370#define __DARWIN_ONLY_VERS_1050 1 371#endif /* PLATFORM_iPhoneSimulator */ 372#ifdef PLATFORM_iPhoneOSNano 373/* Platform: iPhoneOSNano */ 374#define __DARWIN_ONLY_64_BIT_INO_T 1 375#define __DARWIN_ONLY_UNIX_CONFORMANCE 1 376#define __DARWIN_ONLY_VERS_1050 1 377#endif /* PLATFORM_iPhoneOSNano */ 378#ifdef PLATFORM_iPhoneNanoSimulator 379/* Platform: iPhoneNanoSimulator */ 380#define __DARWIN_ONLY_64_BIT_INO_T 1 381#define __DARWIN_ONLY_UNIX_CONFORMANCE 1 382#define __DARWIN_ONLY_VERS_1050 1 383#endif /* PLATFORM_iPhoneNanoSimulator */ 384#ifdef PLATFORM_MacOSX 385/* Platform: MacOSX */ 386#define __DARWIN_ONLY_64_BIT_INO_T 0 387/* #undef __DARWIN_ONLY_UNIX_CONFORMANCE (automatically set for 64-bit) */ 388#define __DARWIN_ONLY_VERS_1050 0 389#endif /* PLATFORM_MacOSX */ 390#endif /* KERNEL */ 391 392/* 393 * The __DARWIN_ALIAS macros are used to do symbol renaming; they allow 394 * legacy code to use the old symbol, thus maintaining binary compatibility 395 * while new code can use a standards compliant version of the same function. 396 * 397 * __DARWIN_ALIAS is used by itself if the function signature has not 398 * changed, it is used along with a #ifdef check for __DARWIN_UNIX03 399 * if the signature has changed. Because the __LP64__ environment 400 * only supports UNIX03 semantics it causes __DARWIN_UNIX03 to be 401 * defined, but causes __DARWIN_ALIAS to do no symbol mangling. 402 * 403 * As a special case, when XCode is used to target a specific version of the 404 * OS, the manifest constant __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ 405 * will be defined by the compiler, with the digits representing major version 406 * time 100 + minor version times 10 (e.g. 10.5 := 1050). If we are targeting 407 * pre-10.5, and it is the default compilation environment, revert the 408 * compilation environment to pre-__DARWIN_UNIX03. 409 */ 410#if !defined(__DARWIN_ONLY_UNIX_CONFORMANCE) 411# if defined(__LP64__) 412# define __DARWIN_ONLY_UNIX_CONFORMANCE 1 413# else /* !__LP64__ */ 414# define __DARWIN_ONLY_UNIX_CONFORMANCE 0 415# endif /* __LP64__ */ 416#endif /* !__DARWIN_ONLY_UNIX_CONFORMANCE */ 417 418#if !defined(__DARWIN_UNIX03) 419# if defined(KERNEL) 420# define __DARWIN_UNIX03 0 421# elif __DARWIN_ONLY_UNIX_CONFORMANCE 422# if defined(_NONSTD_SOURCE) 423# error "Can't define _NONSTD_SOURCE when only UNIX conformance is available." 424# endif /* _NONSTD_SOURCE */ 425# define __DARWIN_UNIX03 1 426# elif defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && ((__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__-0) < 1040) 427# define __DARWIN_UNIX03 0 428# elif defined(_DARWIN_C_SOURCE) || defined(_XOPEN_SOURCE) || defined(_POSIX_C_SOURCE) 429# if defined(_NONSTD_SOURCE) 430# error "Can't define both _NONSTD_SOURCE and any of _DARWIN_C_SOURCE, _XOPEN_SOURCE or _POSIX_C_SOURCE." 431# endif /* _NONSTD_SOURCE */ 432# define __DARWIN_UNIX03 1 433# elif defined(_NONSTD_SOURCE) 434# define __DARWIN_UNIX03 0 435# else /* default */ 436# if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && ((__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__-0) < 1050) 437# define __DARWIN_UNIX03 0 438# else /* __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1050 */ 439# define __DARWIN_UNIX03 1 440# endif /* __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1050 */ 441# endif /* _DARWIN_C_SOURCE || _XOPEN_SOURCE || _POSIX_C_SOURCE || __LP64__ */ 442#endif /* !__DARWIN_UNIX03 */ 443 444#if !defined(__DARWIN_64_BIT_INO_T) 445# if defined(KERNEL) 446# define __DARWIN_64_BIT_INO_T 0 447# elif defined(_DARWIN_USE_64_BIT_INODE) 448# if defined(_DARWIN_NO_64_BIT_INODE) 449# error "Can't define both _DARWIN_USE_64_BIT_INODE and _DARWIN_NO_64_BIT_INODE." 450# endif /* _DARWIN_NO_64_BIT_INODE */ 451# define __DARWIN_64_BIT_INO_T 1 452# elif defined(_DARWIN_NO_64_BIT_INODE) 453# if __DARWIN_ONLY_64_BIT_INO_T 454# error "Can't define _DARWIN_NO_64_BIT_INODE when only 64-bit inodes are available." 455# endif /* __DARWIN_ONLY_64_BIT_INO_T */ 456# define __DARWIN_64_BIT_INO_T 0 457# else /* default */ 458# if __DARWIN_ONLY_64_BIT_INO_T 459# define __DARWIN_64_BIT_INO_T 1 460# elif defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && ((__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__-0) < 1060) || __DARWIN_UNIX03 == 0 461# define __DARWIN_64_BIT_INO_T 0 462# else /* default */ 463# define __DARWIN_64_BIT_INO_T 1 464# endif /* __DARWIN_ONLY_64_BIT_INO_T */ 465# endif 466#endif /* !__DARWIN_64_BIT_INO_T */ 467 468#if !defined(__DARWIN_VERS_1050) 469# if defined(KERNEL) 470# define __DARWIN_VERS_1050 0 471# elif __DARWIN_ONLY_VERS_1050 472# define __DARWIN_VERS_1050 1 473# elif defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && ((__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__-0) < 1050) || __DARWIN_UNIX03 == 0 474# define __DARWIN_VERS_1050 0 475# else /* default */ 476# define __DARWIN_VERS_1050 1 477# endif 478#endif /* !__DARWIN_VERS_1050 */ 479 480#if !defined(__DARWIN_NON_CANCELABLE) 481# if defined(KERNEL) 482# define __DARWIN_NON_CANCELABLE 0 483# else /* default */ 484# define __DARWIN_NON_CANCELABLE 0 485# endif 486#endif /* !__DARWIN_NON_CANCELABLE */ 487 488/* 489 * symbol suffixes used for symbol versioning 490 */ 491#if __DARWIN_UNIX03 492# if __DARWIN_ONLY_UNIX_CONFORMANCE 493# define __DARWIN_SUF_UNIX03 /* nothing */ 494# else /* !__DARWIN_ONLY_UNIX_CONFORMANCE */ 495# define __DARWIN_SUF_UNIX03 "$UNIX2003" 496# endif /* __DARWIN_ONLY_UNIX_CONFORMANCE */ 497 498# if __DARWIN_64_BIT_INO_T 499# if __DARWIN_ONLY_64_BIT_INO_T 500# define __DARWIN_SUF_64_BIT_INO_T /* nothing */ 501# else /* !__DARWIN_ONLY_64_BIT_INO_T */ 502# define __DARWIN_SUF_64_BIT_INO_T "$INODE64" 503# endif /* __DARWIN_ONLY_64_BIT_INO_T */ 504# else /* !__DARWIN_64_BIT_INO_T */ 505# define __DARWIN_SUF_64_BIT_INO_T /* nothing */ 506# endif /* __DARWIN_64_BIT_INO_T */ 507 508# if __DARWIN_VERS_1050 509# if __DARWIN_ONLY_VERS_1050 510# define __DARWIN_SUF_1050 /* nothing */ 511# else /* !__DARWIN_ONLY_VERS_1050 */ 512# define __DARWIN_SUF_1050 "$1050" 513# endif /* __DARWIN_ONLY_VERS_1050 */ 514# else /* !__DARWIN_VERS_1050 */ 515# define __DARWIN_SUF_1050 /* nothing */ 516# endif /* __DARWIN_VERS_1050 */ 517 518# if __DARWIN_NON_CANCELABLE 519# define __DARWIN_SUF_NON_CANCELABLE "$NOCANCEL" 520# else /* !__DARWIN_NON_CANCELABLE */ 521# define __DARWIN_SUF_NON_CANCELABLE /* nothing */ 522# endif /* __DARWIN_NON_CANCELABLE */ 523 524#else /* !__DARWIN_UNIX03 */ 525# define __DARWIN_SUF_UNIX03 /* nothing */ 526# define __DARWIN_SUF_64_BIT_INO_T /* nothing */ 527# define __DARWIN_SUF_NON_CANCELABLE /* nothing */ 528# define __DARWIN_SUF_1050 /* nothing */ 529#endif /* __DARWIN_UNIX03 */ 530 531#define __DARWIN_SUF_EXTSN "$DARWIN_EXTSN" 532 533/* 534 * symbol versioning macros 535 */ 536#define __DARWIN_ALIAS(sym) __asm("_" __STRING(sym) __DARWIN_SUF_UNIX03) 537#define __DARWIN_ALIAS_C(sym) __asm("_" __STRING(sym) __DARWIN_SUF_NON_CANCELABLE __DARWIN_SUF_UNIX03) 538#define __DARWIN_ALIAS_I(sym) __asm("_" __STRING(sym) __DARWIN_SUF_64_BIT_INO_T __DARWIN_SUF_UNIX03) 539#define __DARWIN_NOCANCEL(sym) __asm("_" __STRING(sym) __DARWIN_SUF_NON_CANCELABLE) 540#define __DARWIN_INODE64(sym) __asm("_" __STRING(sym) __DARWIN_SUF_64_BIT_INO_T) 541 542#define __DARWIN_1050(sym) __asm("_" __STRING(sym) __DARWIN_SUF_1050) 543#define __DARWIN_1050ALIAS(sym) __asm("_" __STRING(sym) __DARWIN_SUF_1050 __DARWIN_SUF_UNIX03) 544#define __DARWIN_1050ALIAS_C(sym) __asm("_" __STRING(sym) __DARWIN_SUF_1050 __DARWIN_SUF_NON_CANCELABLE __DARWIN_SUF_UNIX03) 545#define __DARWIN_1050ALIAS_I(sym) __asm("_" __STRING(sym) __DARWIN_SUF_1050 __DARWIN_SUF_64_BIT_INO_T __DARWIN_SUF_UNIX03) 546#define __DARWIN_1050INODE64(sym) __asm("_" __STRING(sym) __DARWIN_SUF_1050 __DARWIN_SUF_64_BIT_INO_T) 547 548#define __DARWIN_EXTSN(sym) __asm("_" __STRING(sym) __DARWIN_SUF_EXTSN) 549#define __DARWIN_EXTSN_C(sym) __asm("_" __STRING(sym) __DARWIN_SUF_EXTSN __DARWIN_SUF_NON_CANCELABLE) 550 551/* 552 * symbol release macros 553 */ 554#ifdef KERNEL 555#define __DARWIN_ALIAS_STARTING(_mac, _iphone, x) 556#else 557#include <sys/_symbol_aliasing.h> 558 559#if defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) 560#define __DARWIN_ALIAS_STARTING(_mac, _iphone, x) __DARWIN_ALIAS_STARTING_IPHONE_##_iphone(x) 561#elif defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) 562#define __DARWIN_ALIAS_STARTING(_mac, _iphone, x) __DARWIN_ALIAS_STARTING_MAC_##_mac(x) 563#else 564#define __DARWIN_ALIAS_STARTING(_mac, _iphone, x) 565#endif 566#endif /* KERNEL */ 567 568 569/* 570 * POSIX.1 requires that the macros we test be defined before any standard 571 * header file is included. This permits us to convert values for feature 572 * testing, as necessary, using only _POSIX_C_SOURCE. 573 * 574 * Here's a quick run-down of the versions: 575 * defined(_POSIX_SOURCE) 1003.1-1988 576 * _POSIX_C_SOURCE == 1L 1003.1-1990 577 * _POSIX_C_SOURCE == 2L 1003.2-1992 C Language Binding Option 578 * _POSIX_C_SOURCE == 199309L 1003.1b-1993 579 * _POSIX_C_SOURCE == 199506L 1003.1c-1995, 1003.1i-1995, 580 * and the omnibus ISO/IEC 9945-1: 1996 581 * _POSIX_C_SOURCE == 200112L 1003.1-2001 582 * _POSIX_C_SOURCE == 200809L 1003.1-2008 583 * 584 * In addition, the X/Open Portability Guide, which is now the Single UNIX 585 * Specification, defines a feature-test macro which indicates the version of 586 * that specification, and which subsumes _POSIX_C_SOURCE. 587 */ 588 589/* Deal with IEEE Std. 1003.1-1990, in which _POSIX_C_SOURCE == 1L. */ 590#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 1L 591#undef _POSIX_C_SOURCE 592#define _POSIX_C_SOURCE 199009L 593#endif 594 595/* Deal with IEEE Std. 1003.2-1992, in which _POSIX_C_SOURCE == 2L. */ 596#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 2L 597#undef _POSIX_C_SOURCE 598#define _POSIX_C_SOURCE 199209L 599#endif 600 601/* Deal with various X/Open Portability Guides and Single UNIX Spec. */ 602#ifdef _XOPEN_SOURCE 603#if _XOPEN_SOURCE - 0L >= 700L && (!defined(_POSIX_C_SOURCE) || _POSIX_C_SOURCE - 0L < 200809L) 604#undef _POSIX_C_SOURCE 605#define _POSIX_C_SOURCE 200809L 606#elif _XOPEN_SOURCE - 0L >= 600L && (!defined(_POSIX_C_SOURCE) || _POSIX_C_SOURCE - 0L < 200112L) 607#undef _POSIX_C_SOURCE 608#define _POSIX_C_SOURCE 200112L 609#elif _XOPEN_SOURCE - 0L >= 500L && (!defined(_POSIX_C_SOURCE) || _POSIX_C_SOURCE - 0L < 199506L) 610#undef _POSIX_C_SOURCE 611#define _POSIX_C_SOURCE 199506L 612#endif 613#endif 614 615/* 616 * Deal with all versions of POSIX. The ordering relative to the tests above is 617 * important. 618 */ 619#if defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE) 620#define _POSIX_C_SOURCE 198808L 621#endif 622 623/* POSIX C deprecation macros */ 624#ifdef KERNEL 625#define __POSIX_C_DEPRECATED(ver) 626#else 627#include <sys/_posix_availability.h> 628 629#define __POSIX_C_DEPRECATED(ver) ___POSIX_C_DEPRECATED_STARTING_##ver 630#endif 631 632/* 633 * Set a single macro which will always be defined and can be used to determine 634 * the appropriate namespace. For POSIX, these values will correspond to 635 * _POSIX_C_SOURCE value. Currently there are two additional levels corresponding 636 * to ANSI (_ANSI_SOURCE) and Darwin extensions (_DARWIN_C_SOURCE) 637 */ 638#define __DARWIN_C_ANSI 010000L 639#define __DARWIN_C_FULL 900000L 640 641#if defined(_ANSI_SOURCE) 642#define __DARWIN_C_LEVEL __DARWIN_C_ANSI 643#elif defined(_POSIX_C_SOURCE) && !defined(_DARWIN_C_SOURCE) && !defined(_NONSTD_SOURCE) 644#define __DARWIN_C_LEVEL _POSIX_C_SOURCE 645#else 646#define __DARWIN_C_LEVEL __DARWIN_C_FULL 647#endif 648 649/* If the developer has neither requested a strict language mode nor a version 650 * of POSIX, turn on functionality provided by __STDC_WANT_LIB_EXT1__ as part 651 * of __DARWIN_C_FULL. 652 */ 653#if !defined(__STDC_WANT_LIB_EXT1__) && !defined(__STRICT_ANSI__) && __DARWIN_C_LEVEL >= __DARWIN_C_FULL 654#define __STDC_WANT_LIB_EXT1__ 1 655#endif 656 657/* 658 * long long is not supported in c89 (__STRICT_ANSI__), but g++ -ansi and 659 * c99 still want long longs. While not perfect, we allow long longs for 660 * g++. 661 */ 662#define __DARWIN_NO_LONG_LONG (defined(__STRICT_ANSI__) \ 663 && (__STDC_VERSION__-0 < 199901L) \ 664 && !defined(__GNUG__)) 665 666/***************************************** 667 * Public darwin-specific feature macros 668 *****************************************/ 669 670/* 671 * _DARWIN_FEATURE_64_BIT_INODE indicates that the ino_t type is 64-bit, and 672 * structures modified for 64-bit inodes (like struct stat) will be used. 673 */ 674#if __DARWIN_64_BIT_INO_T 675#define _DARWIN_FEATURE_64_BIT_INODE 1 676#endif 677 678/* 679 * _DARWIN_FEATURE_64_ONLY_BIT_INODE indicates that the ino_t type may only 680 * be 64-bit; there is no support for 32-bit ino_t when this macro is defined 681 * (and non-zero). There is no struct stat64 either, as the regular 682 * struct stat will already be the 64-bit version. 683 */ 684#if __DARWIN_ONLY_64_BIT_INO_T 685#define _DARWIN_FEATURE_ONLY_64_BIT_INODE 1 686#endif 687 688/* 689 * _DARWIN_FEATURE_ONLY_VERS_1050 indicates that only those APIs updated 690 * in 10.5 exists; no pre-10.5 variants are available. 691 */ 692#if __DARWIN_ONLY_VERS_1050 693#define _DARWIN_FEATURE_ONLY_VERS_1050 1 694#endif 695 696/* 697 * _DARWIN_FEATURE_ONLY_UNIX_CONFORMANCE indicates only UNIX conforming API 698 * are available (the legacy BSD APIs are not available) 699 */ 700#if __DARWIN_ONLY_UNIX_CONFORMANCE 701#define _DARWIN_FEATURE_ONLY_UNIX_CONFORMANCE 1 702#endif 703 704/* 705 * _DARWIN_FEATURE_UNIX_CONFORMANCE indicates whether UNIX conformance is on, 706 * and specifies the conformance level (3 is SUSv3) 707 */ 708#if __DARWIN_UNIX03 709#define _DARWIN_FEATURE_UNIX_CONFORMANCE 3 710#endif 711 712/* 713 * This macro casts away the qualifier from the variable 714 * 715 * Note: use at your own risk, removing qualifiers can result in 716 * catastrophic run-time failures. 717 */ 718#ifndef __CAST_AWAY_QUALIFIER 719#define __CAST_AWAY_QUALIFIER(variable, qualifier, type) (type) (long)(variable) 720#endif 721 722/* 723 * __XNU_PRIVATE_EXTERN is a linkage decoration indicating that a symbol can be 724 * used from other compilation units, but not other libraries or executables. 725 */ 726#ifndef __XNU_PRIVATE_EXTERN 727#define __XNU_PRIVATE_EXTERN __attribute__((visibility("hidden"))) 728#endif 729 730/* 731 * Architecture validation for current SDK 732 */ 733#if !defined(__sys_cdefs_arch_unknown__) && defined(__i386__) 734#elif !defined(__sys_cdefs_arch_unknown__) && defined(__x86_64__) 735#else 736#error Unsupported architecture 737#endif 738 739#endif /* !_CDEFS_H_ */ 740