/*
- * Copyright (c) 2000-2008 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#define __END_DECLS
#endif
+/* This SDK is designed to work with clang and specific versions of
+ * gcc >= 4.0 with Apple's patch sets */
+#if !defined(__GNUC__) || __GNUC__ < 4
+#warning "Unsupported compiler detected"
+#endif
+
/*
* The __CONCAT macro is used to concatenate parts of symbol names, e.g.
* with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
#endif /* !NO_ANSI_KEYWORDS */
#endif /* !(__STDC__ || __cplusplus) */
-/*
- * GCC1 and some versions of GCC2 declare dead (non-returning) and
- * pure (no side effects) functions using "volatile" and "const";
- * unfortunately, these then cause warnings under "-ansi -pedantic".
- * GCC2 uses a new, peculiar __attribute__((attrs)) style. All of
- * these work for GNU C++ (modulo a slight glitch in the C++ grammar
- * in the distribution version of 2.5.5).
+#define __dead2 __attribute__((noreturn))
+#define __pure2 __attribute__((const))
+
+/* __unused denotes variables and functions that may not be used, preventing
+ * the compiler from warning about it if not used.
+ */
+#define __unused __attribute__((unused))
+
+/* __used forces variables and functions to be included even if it appears
+ * to the compiler that they are not used (and would thust be discarded).
+ */
+#define __used __attribute__((used))
+
+/* __deprecated causes the compiler to produce a warning when encountering
+ * code using the deprecated functionality.
+ * __deprecated_msg() does the same, and compilers that support it will print
+ * a message along with the deprecation warning.
+ * This may require turning on such warning with the -Wdeprecated flag.
+ * __deprecated_enum_msg() should be used on enums, and compilers that support
+ * it will print the deprecation warning.
*/
-#if defined(__MWERKS__) && (__MWERKS__ > 0x2400)
- /* newer Metrowerks compilers support __attribute__() */
-#elif __GNUC__ > 2 || __GNUC__ == 2 && __GNUC_MINOR__ >= 5
-#define __dead2 __attribute__((__noreturn__))
-#define __pure2 __attribute__((__const__))
-#if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 && __GNUC_MINOR__ < 7
-#define __unused /* no attribute */
+#define __deprecated __attribute__((deprecated))
+
+#ifdef __has_extension
+ #if __has_extension(attribute_deprecated_with_message)
+ #define __deprecated_msg(_msg) __attribute__((deprecated(_msg)))
+ #else
+ #define __deprecated_msg(_msg) __attribute__((deprecated))
+ #endif
+#elif defined(__GNUC__) && ((__GNUC__ >= 5) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)))
+ #define __deprecated_msg(_msg) __attribute__((deprecated(_msg)))
#else
-#define __unused __attribute__((__unused__))
+ #define __deprecated_msg(_msg) __attribute__((deprecated))
#endif
+
+#ifdef __has_extension
+ #if __has_extension(enumerator_attributes)
+ #define __deprecated_enum_msg(_msg) __deprecated_msg(_msg)
+ #else
+ #define __deprecated_enum_msg(_msg)
+ #endif
#else
-#define __attribute__(x) /* delete __attribute__ if non-gcc or gcc1 */
-#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
-/* __dead and __pure are depreciated. Use __dead2 and __pure2 instead */
-#define __dead __volatile
-#define __pure __const
-#endif
+ #define __deprecated_enum_msg(_msg)
#endif
+/* __unavailable causes the compiler to error out when encountering
+ * code using the tagged function of variable.
+ */
+#define __unavailable __attribute__((unavailable))
+
/* Delete pseudo-keywords wherever they are not available or needed. */
#ifndef __dead
#define __dead
#define __pure
#endif
-#ifndef __dead2
-#define __dead2
-#define __pure2
-#define __unused
-#endif
/*
- * GCC 2.95 provides `__restrict' as an extension to C90 to support the
- * C99-specific `restrict' type qualifier. We happen to use `__restrict' as
- * a way to define the `restrict' type qualifier without disturbing older
- * software that is unaware of C99 keywords.
+ * We use `__restrict' as a way to define the `restrict' type qualifier
+ * without disturbing older software that is unaware of C99 keywords.
*/
-#if !(__GNUC__ == 2 && __GNUC_MINOR__ == 95)
#if __STDC_VERSION__ < 199901
#define __restrict
#else
#define __restrict restrict
#endif
+
+/* Declaring inline functions within headers is error-prone due to differences
+ * across various versions of the C language and extensions. __header_inline
+ * can be used to declare inline functions within system headers. In cases
+ * where you want to force inlining instead of letting the compiler make
+ * the decision, you can use __header_always_inline.
+ *
+ * Be aware that using inline for functions which compilers may also provide
+ * builtins can behave differently under various compilers. If you intend to
+ * provide an inline version of such a function, you may want to use a macro
+ * instead.
+ *
+ * The check for !__GNUC__ || __clang__ is because gcc doesn't correctly
+ * support c99 inline in some cases:
+ * http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55965
+ */
+
+#if defined(__cplusplus) || \
+ (__STDC_VERSION__ >= 199901L && \
+ !defined(__GNUC_GNU_INLINE__) && \
+ (!defined(__GNUC__) || defined(__clang__)))
+# define __header_inline inline
+#elif defined(__GNUC__) && defined(__GNUC_STDC_INLINE__)
+# define __header_inline extern __inline __attribute__((__gnu_inline__))
+#elif defined(__GNUC__)
+# define __header_inline extern __inline
+#else
+ /* If we land here, we've encountered an unsupported compiler,
+ * so hopefully it understands static __inline as a fallback.
+ */
+# define __header_inline static __inline
+#endif
+
+#ifdef __GNUC__
+# define __header_always_inline __header_inline __attribute__ ((__always_inline__))
+#else
+ /* Unfortunately, we're using a compiler that we don't know how to force to
+ * inline. Oh well.
+ */
+# define __header_always_inline __header_inline
+#endif
+
+/*
+ * Compiler-dependent macros that bracket portions of code where the
+ * "-Wunreachable-code" warning should be ignored. Please use sparingly.
+ */
+#if defined(__clang__)
+# define __unreachable_ok_push \
+ _Pragma("clang diagnostic push") \
+ _Pragma("clang diagnostic ignored \"-Wunreachable-code\"")
+# define __unreachable_ok_pop \
+ _Pragma("clang diagnostic pop")
+#elif defined(__GNUC__) && ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))
+# define __unreachable_ok_push \
+ _Pragma("GCC diagnostic push") \
+ _Pragma("GCC diagnostic ignored \"-Wunreachable-code\"")
+# define __unreachable_ok_pop \
+ _Pragma("GCC diagnostic pop")
+#else
+# define __unreachable_ok_push
+# define __unreachable_ok_pop
#endif
/*
* mismatch between the format string and subsequent function parameter
* types.
*/
-#if __GNUC__ > 2 || __GNUC__ == 2 && __GNUC_MINOR__ >= 7
#define __printflike(fmtarg, firstvararg) \
__attribute__((__format__ (__printf__, fmtarg, firstvararg)))
#define __scanflike(fmtarg, firstvararg) \
__attribute__((__format__ (__scanf__, fmtarg, firstvararg)))
-#else
-#define __printflike(fmtarg, firstvararg)
-#define __scanflike(fmtarg, firstvararg)
-#endif
-#define __IDSTRING(name,string) static const char name[] __unused = string
+#define __IDSTRING(name,string) static const char name[] __used = string
#ifndef __COPYRIGHT
#define __COPYRIGHT(s) __IDSTRING(copyright,s)
#define __PROJECT_VERSION(s) __IDSTRING(project_version,s)
#endif
+/* Source compatibility only, ID string not emitted in object file */
+#ifndef __FBSDID
+#define __FBSDID(s)
+#endif
+
+#ifndef __DECONST
+#define __DECONST(type, var) __CAST_AWAY_QUALIFIER(var, const, type)
+#endif
+
+#ifndef __DEVOLATILE
+#define __DEVOLATILE(type, var) __CAST_AWAY_QUALIFIER(var, volatile, type)
+#endif
+
+#ifndef __DEQUALIFY
+#define __DEQUALIFY(type, var) __CAST_AWAY_QUALIFIER(var, const volatile, type)
+#endif
+
/*
- * COMPILATION ENVIRONMENTS
+ * COMPILATION ENVIRONMENTS -- see compat(5) for additional detail
*
* DEFAULT By default newly complied code will get POSIX APIs plus
* Apple API extensions in scope.
*
* Most users will use this compilation environment to avoid
- * behavioural differences between 32 and 64 bit code.
+ * behavioral differences between 32 and 64 bit code.
*
* LEGACY Defining _NONSTD_SOURCE will get pre-POSIX APIs plus Apple
* API extensions in scope.
*
* In any compilation environment, for correct symbol resolution to occur,
* function prototypes must be in scope. It is recommended that all Apple
- * tools users add etiher the "-Wall" or "-Wimplicit-function-declaration"
+ * tools users add either the "-Wall" or "-Wimplicit-function-declaration"
* compiler flags to their projects to be warned when a function is being
* used without a prototype in scope.
*/
#define __DARWIN_ONLY_64_BIT_INO_T 0
#define __DARWIN_ONLY_UNIX_CONFORMANCE 0
#define __DARWIN_ONLY_VERS_1050 0
+#if defined(__x86_64__)
+#define __DARWIN_SUF_DARWIN14 "_darwin14"
+#define __DARWIN14_ALIAS(sym) __asm("_" __STRING(sym) __DARWIN_SUF_DARWIN14)
+#else
+#define __DARWIN14_ALIAS(sym)
+#endif
#else /* !KERNEL */
-#ifdef PRODUCT_AppleTV
-/* Product: AppleTV */
+#ifdef PLATFORM_iPhoneOS
+/* Platform: iPhoneOS */
+#define __DARWIN_ONLY_64_BIT_INO_T 1
+#define __DARWIN_ONLY_UNIX_CONFORMANCE 1
+#define __DARWIN_ONLY_VERS_1050 1
+#endif /* PLATFORM_iPhoneOS */
+#ifdef PLATFORM_iPhoneSimulator
+/* Platform: iPhoneSimulator */
#define __DARWIN_ONLY_64_BIT_INO_T 1
#define __DARWIN_ONLY_UNIX_CONFORMANCE 1
#define __DARWIN_ONLY_VERS_1050 1
-#endif /* PRODUCT_AppleTV */
-#ifdef PRODUCT_iPhone
-/* Product: iPhone */
+#endif /* PLATFORM_iPhoneSimulator */
+#ifdef PLATFORM_iPhoneOSNano
+/* Platform: iPhoneOSNano */
#define __DARWIN_ONLY_64_BIT_INO_T 1
#define __DARWIN_ONLY_UNIX_CONFORMANCE 1
#define __DARWIN_ONLY_VERS_1050 1
-#endif /* PRODUCT_iPhone */
-#ifdef PRODUCT_MacOSX
-/* Product: MacOSX */
+#endif /* PLATFORM_iPhoneOSNano */
+#ifdef PLATFORM_iPhoneNanoSimulator
+/* Platform: iPhoneNanoSimulator */
+#define __DARWIN_ONLY_64_BIT_INO_T 1
+#define __DARWIN_ONLY_UNIX_CONFORMANCE 1
+#define __DARWIN_ONLY_VERS_1050 1
+#endif /* PLATFORM_iPhoneNanoSimulator */
+#ifdef PLATFORM_MacOSX
+/* Platform: MacOSX */
#define __DARWIN_ONLY_64_BIT_INO_T 0
/* #undef __DARWIN_ONLY_UNIX_CONFORMANCE (automatically set for 64-bit) */
#define __DARWIN_ONLY_VERS_1050 0
-#endif /* PRODUCT_MacOSX */
+#endif /* PLATFORM_MacOSX */
#endif /* KERNEL */
/*
* The __DARWIN_ALIAS macros are used to do symbol renaming; they allow
- * legacy code to use the old symbol, thus maintiang binary compatability
+ * legacy code to use the old symbol, thus maintaining binary compatibility
* while new code can use a standards compliant version of the same function.
*
* __DARWIN_ALIAS is used by itself if the function signature has not
* changed, it is used along with a #ifdef check for __DARWIN_UNIX03
- * if the signature has changed. Because the __LP64__ enviroment
- * only supports UNIX03 sementics it causes __DARWIN_UNIX03 to be
+ * if the signature has changed. Because the __LP64__ environment
+ * only supports UNIX03 semantics it causes __DARWIN_UNIX03 to be
* defined, but causes __DARWIN_ALIAS to do no symbol mangling.
*
* As a special case, when XCode is used to target a specific version of the
* OS, the manifest constant __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__
* will be defined by the compiler, with the digits representing major version
- * time 100 + minor version times 10 (e.g. 10.5 := 1050). If we are targetting
+ * time 100 + minor version times 10 (e.g. 10.5 := 1050). If we are targeting
* pre-10.5, and it is the default compilation environment, revert the
* compilation environment to pre-__DARWIN_UNIX03.
*/
# error "Can't define _NONSTD_SOURCE when only UNIX conformance is available."
# endif /* _NONSTD_SOURCE */
# define __DARWIN_UNIX03 1
+# elif defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && ((__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__-0) < 1040)
+# define __DARWIN_UNIX03 0
# elif defined(_DARWIN_C_SOURCE) || defined(_XOPEN_SOURCE) || defined(_POSIX_C_SOURCE)
# if defined(_NONSTD_SOURCE)
# error "Can't define both _NONSTD_SOURCE and any of _DARWIN_C_SOURCE, _XOPEN_SOURCE or _POSIX_C_SOURCE."
# else /* default */
# if __DARWIN_ONLY_64_BIT_INO_T
# define __DARWIN_64_BIT_INO_T 1
-# else /* !__DARWIN_ONLY_64_BIT_INO_T */
+# elif defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && ((__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__-0) < 1060) || __DARWIN_UNIX03 == 0
# define __DARWIN_64_BIT_INO_T 0
+# else /* default */
+# define __DARWIN_64_BIT_INO_T 1
# endif /* __DARWIN_ONLY_64_BIT_INO_T */
# endif
#endif /* !__DARWIN_64_BIT_INO_T */
# define __DARWIN_VERS_1050 0
# elif __DARWIN_ONLY_VERS_1050
# define __DARWIN_VERS_1050 1
-# elif defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && ((__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__-0) >= 1050)
-# define __DARWIN_VERS_1050 1
-# else /* default */
+# elif defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && ((__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__-0) < 1050) || __DARWIN_UNIX03 == 0
# define __DARWIN_VERS_1050 0
+# else /* default */
+# define __DARWIN_VERS_1050 1
# endif
#endif /* !__DARWIN_VERS_1050 */
#define __DARWIN_ALIAS(sym) __asm("_" __STRING(sym) __DARWIN_SUF_UNIX03)
#define __DARWIN_ALIAS_C(sym) __asm("_" __STRING(sym) __DARWIN_SUF_NON_CANCELABLE __DARWIN_SUF_UNIX03)
#define __DARWIN_ALIAS_I(sym) __asm("_" __STRING(sym) __DARWIN_SUF_64_BIT_INO_T __DARWIN_SUF_UNIX03)
+#define __DARWIN_NOCANCEL(sym) __asm("_" __STRING(sym) __DARWIN_SUF_NON_CANCELABLE)
#define __DARWIN_INODE64(sym) __asm("_" __STRING(sym) __DARWIN_SUF_64_BIT_INO_T)
#define __DARWIN_1050(sym) __asm("_" __STRING(sym) __DARWIN_SUF_1050)
#define __DARWIN_EXTSN(sym) __asm("_" __STRING(sym) __DARWIN_SUF_EXTSN)
#define __DARWIN_EXTSN_C(sym) __asm("_" __STRING(sym) __DARWIN_SUF_EXTSN __DARWIN_SUF_NON_CANCELABLE)
+/*
+ * symbol release macros
+ */
+#ifdef KERNEL
+#define __DARWIN_ALIAS_STARTING(_mac, _iphone, x)
+#else
+#include <sys/_symbol_aliasing.h>
+
+#if defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__)
+#define __DARWIN_ALIAS_STARTING(_mac, _iphone, x) __DARWIN_ALIAS_STARTING_IPHONE_##_iphone(x)
+#elif defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__)
+#define __DARWIN_ALIAS_STARTING(_mac, _iphone, x) __DARWIN_ALIAS_STARTING_MAC_##_mac(x)
+#else
+#define __DARWIN_ALIAS_STARTING(_mac, _iphone, x)
+#endif
+#endif /* KERNEL */
+
/*
* POSIX.1 requires that the macros we test be defined before any standard
* _POSIX_C_SOURCE == 199506L 1003.1c-1995, 1003.1i-1995,
* and the omnibus ISO/IEC 9945-1: 1996
* _POSIX_C_SOURCE == 200112L 1003.1-2001
+ * _POSIX_C_SOURCE == 200809L 1003.1-2008
*
* In addition, the X/Open Portability Guide, which is now the Single UNIX
* Specification, defines a feature-test macro which indicates the version of
/* Deal with various X/Open Portability Guides and Single UNIX Spec. */
#ifdef _XOPEN_SOURCE
-#if _XOPEN_SOURCE - 0L >= 600L
+#if _XOPEN_SOURCE - 0L >= 700L && (!defined(_POSIX_C_SOURCE) || _POSIX_C_SOURCE - 0L < 200809L)
+#undef _POSIX_C_SOURCE
+#define _POSIX_C_SOURCE 200809L
+#elif _XOPEN_SOURCE - 0L >= 600L && (!defined(_POSIX_C_SOURCE) || _POSIX_C_SOURCE - 0L < 200112L)
#undef _POSIX_C_SOURCE
#define _POSIX_C_SOURCE 200112L
-#elif _XOPEN_SOURCE - 0L >= 500L
+#elif _XOPEN_SOURCE - 0L >= 500L && (!defined(_POSIX_C_SOURCE) || _POSIX_C_SOURCE - 0L < 199506L)
#undef _POSIX_C_SOURCE
#define _POSIX_C_SOURCE 199506L
#endif
#define _POSIX_C_SOURCE 198808L
#endif
-/*
- * long long is not supported in c89 (__STRICT_ANSI__), but g++ -ansi and
- * c99 still want long longs. While not perfect, we allow long longs for
- * g++.
- */
-#define __DARWIN_NO_LONG_LONG (defined(__STRICT_ANSI__) \
- && (__STDC_VERSION__-0 < 199901L) \
- && !defined(__GNUG__))
+/* POSIX C deprecation macros */
+#ifdef KERNEL
+#define __POSIX_C_DEPRECATED(ver)
+#else
+#include <sys/_posix_availability.h>
+
+#define __POSIX_C_DEPRECATED(ver) ___POSIX_C_DEPRECATED_STARTING_##ver
+#endif
/*
- * Long double compatibility macro allow selecting variant symbols based
- * on the old (compatible) 64-bit long doubles, or the new 128-bit
- * long doubles. This applies only to ppc; i386 already has long double
- * support, while ppc64 doesn't have any backwards history.
+ * Set a single macro which will always be defined and can be used to determine
+ * the appropriate namespace. For POSIX, these values will correspond to
+ * _POSIX_C_SOURCE value. Currently there are two additional levels corresponding
+ * to ANSI (_ANSI_SOURCE) and Darwin extensions (_DARWIN_C_SOURCE)
*/
-#if defined(__ppc__)
-# if defined(__LDBL_MANT_DIG__) && defined(__DBL_MANT_DIG__) && \
- __LDBL_MANT_DIG__ > __DBL_MANT_DIG__
-# if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__-0 < 1040
-# define __DARWIN_LDBL_COMPAT(x) __asm("_" __STRING(x) "$LDBLStub")
-# else
-# define __DARWIN_LDBL_COMPAT(x) __asm("_" __STRING(x) "$LDBL128")
-# endif
-# define __DARWIN_LDBL_COMPAT2(x) __asm("_" __STRING(x) "$LDBL128")
-# define __DARWIN_LONG_DOUBLE_IS_DOUBLE 0
-# else
-# define __DARWIN_LDBL_COMPAT(x) /* nothing */
-# define __DARWIN_LDBL_COMPAT2(x) /* nothing */
-# define __DARWIN_LONG_DOUBLE_IS_DOUBLE 1
-# endif
-#elif defined(__i386__) || defined(__ppc64__) || defined(__x86_64__)
-# define __DARWIN_LDBL_COMPAT(x) /* nothing */
-# define __DARWIN_LDBL_COMPAT2(x) /* nothing */
-# define __DARWIN_LONG_DOUBLE_IS_DOUBLE 0
+#define __DARWIN_C_ANSI 010000L
+#define __DARWIN_C_FULL 900000L
+
+#if defined(_ANSI_SOURCE)
+#define __DARWIN_C_LEVEL __DARWIN_C_ANSI
+#elif defined(_POSIX_C_SOURCE) && !defined(_DARWIN_C_SOURCE) && !defined(_NONSTD_SOURCE)
+#define __DARWIN_C_LEVEL _POSIX_C_SOURCE
#else
-# error Unknown architecture
+#define __DARWIN_C_LEVEL __DARWIN_C_FULL
#endif
-/*
- * Deprecation macro
+/* If the developer has neither requested a strict language mode nor a version
+ * of POSIX, turn on functionality provided by __STDC_WANT_LIB_EXT1__ as part
+ * of __DARWIN_C_FULL.
*/
-#if __GNUC__ >= 3
-#define __deprecated __attribute__((deprecated))
-#else
-#define __deprecated /* nothing */
+#if !defined(__STDC_WANT_LIB_EXT1__) && !defined(__STRICT_ANSI__) && __DARWIN_C_LEVEL >= __DARWIN_C_FULL
+#define __STDC_WANT_LIB_EXT1__ 1
#endif
+/*
+ * long long is not supported in c89 (__STRICT_ANSI__), but g++ -ansi and
+ * c99 still want long longs. While not perfect, we allow long longs for
+ * g++.
+ */
+#define __DARWIN_NO_LONG_LONG (defined(__STRICT_ANSI__) \
+ && (__STDC_VERSION__-0 < 199901L) \
+ && !defined(__GNUG__))
+
/*****************************************
* Public darwin-specific feature macros
*****************************************/
#define _DARWIN_FEATURE_64_BIT_INODE 1
#endif
-/*
- * _DARWIN_FEATURE_LONG_DOUBLE_IS_DOUBLE indicates when the long double type
- * is the same as the double type (ppc and arm only)
- */
-#if __DARWIN_LONG_DOUBLE_IS_DOUBLE
-#define _DARWIN_FEATURE_LONG_DOUBLE_IS_DOUBLE 1
-#endif
-
/*
* _DARWIN_FEATURE_64_ONLY_BIT_INODE indicates that the ino_t type may only
* be 64-bit; there is no support for 32-bit ino_t when this macro is defined
#define _DARWIN_FEATURE_UNIX_CONFORMANCE 3
#endif
+/*
+ * This macro casts away the qualifier from the variable
+ *
+ * Note: use at your own risk, removing qualifiers can result in
+ * catastrophic run-time failures.
+ */
+#ifndef __CAST_AWAY_QUALIFIER
+#define __CAST_AWAY_QUALIFIER(variable, qualifier, type) (type) (long)(variable)
+#endif
+
+/*
+ * __XNU_PRIVATE_EXTERN is a linkage decoration indicating that a symbol can be
+ * used from other compilation units, but not other libraries or executables.
+ */
+#ifndef __XNU_PRIVATE_EXTERN
+#define __XNU_PRIVATE_EXTERN __attribute__((visibility("hidden")))
+#endif
+
+/*
+ * Architecture validation for current SDK
+ */
+#if !defined(__sys_cdefs_arch_unknown__) && defined(__i386__)
+#elif !defined(__sys_cdefs_arch_unknown__) && defined(__x86_64__)
+#else
+#error Unsupported architecture
+#endif
+
#endif /* !_CDEFS_H_ */
projects / apple / xnu.git / blobdiff