xnu-2782.20.48.tar.gz

[apple/xnu.git] / bsd / sys / cdefs.h

diff --git a/bsd/sys/cdefs.h b/bsd/sys/cdefs.h
index 8cd063f272ff13dd87d6d67c7c25f82c4a29b913..7c729026f904ec543af282b1f2b84a62a5f96d66 100644 (file)
--- a/bsd/sys/cdefs.h
+++ b/bsd/sys/cdefs.h
@@ -1,5 +1,5 @@
 /*
 /*

- * Copyright (c) 2000-2008 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2012 Apple Inc. All rights reserved.

  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 


@@ -75,6 +75,12 @@
 #define        __END_DECLS
 #endif
 
 #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.
 /*
  * The __CONCAT macro is used to concatenate parts of symbol names, e.g.
  * with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.


@@ -126,56 +132,132 @@
 #endif /* !NO_ANSI_KEYWORDS */
 #endif /* !(__STDC__ || __cplusplus) */
 
 #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
 #else

-#define        __unused        __attribute__((__unused__))
+    #define __deprecated_msg(_msg) __attribute__((deprecated))

 #endif
 #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
 #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
 
 #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
 /* 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
 #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
 
 /*
 #endif
 
 /*


@@ -186,17 +268,12 @@
  * mismatch between the format string and subsequent function parameter
  * types.
  */
  * 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)))
 #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)
 
 #ifndef __COPYRIGHT
 #define __COPYRIGHT(s) __IDSTRING(copyright,s)


@@ -214,14 +291,31 @@
 #define __PROJECT_VERSION(s) __IDSTRING(project_version,s)
 #endif
 
 #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
  *
  * 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.
  *
  * LEGACY      Defining _NONSTD_SOURCE will get pre-POSIX APIs plus Apple
  *             API extensions in scope.


@@ -246,7 +340,7 @@
  *
  * In any compilation environment, for correct symbol resolution to occur,
  * function prototypes must be in scope.  It is recommended that all Apple
  *
  * 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.
  */
  * compiler flags to their projects to be warned when a function is being
  * used without a prototype in scope.
  */


@@ -256,42 +350,60 @@
 #define __DARWIN_ONLY_64_BIT_INO_T     0
 #define __DARWIN_ONLY_UNIX_CONFORMANCE 0
 #define __DARWIN_ONLY_VERS_1050                0
 #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 */
 #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
 #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
 #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
 #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
 #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
  * 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
  * 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.
  */
  * pre-10.5, and it is the default compilation environment, revert the
  * compilation environment to pre-__DARWIN_UNIX03.
  */


@@ -311,6 +423,8 @@
 #      error "Can't define _NONSTD_SOURCE when only UNIX conformance is available."
 #    endif /* _NONSTD_SOURCE */
 #    define __DARWIN_UNIX03    1
 #      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."
 #  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."


@@ -343,8 +457,10 @@
 #  else /* default */
 #    if __DARWIN_ONLY_64_BIT_INO_T
 #      define __DARWIN_64_BIT_INO_T 1
 #  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
 #      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 */
 #    endif /* __DARWIN_ONLY_64_BIT_INO_T */
 #  endif
 #endif /* !__DARWIN_64_BIT_INO_T */


@@ -354,10 +470,10 @@
 #    define __DARWIN_VERS_1050 0
 #  elif __DARWIN_ONLY_VERS_1050
 #    define __DARWIN_VERS_1050 1
 #    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
 #    define __DARWIN_VERS_1050 0

+#  else /* default */
+#    define __DARWIN_VERS_1050 1

 #  endif
 #endif /* !__DARWIN_VERS_1050 */
 
 #  endif
 #endif /* !__DARWIN_VERS_1050 */
 


@@ -420,6 +536,7 @@
 #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_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_INODE64(sym)          __asm("_" __STRING(sym) __DARWIN_SUF_64_BIT_INO_T)
 
 #define __DARWIN_1050(sym)             __asm("_" __STRING(sym) __DARWIN_SUF_1050)


@@ -431,6 +548,23 @@
 #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)
 
 #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.1 requires that the macros we test be defined before any standard


@@ -445,6 +579,7 @@
  *  _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 == 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
  *
  * In addition, the X/Open Portability Guide, which is now the Single UNIX
  * Specification, defines a feature-test macro which indicates the version of


@@ -465,10 +600,13 @@
 
 /* Deal with various X/Open Portability Guides and Single UNIX Spec. */
 #ifdef _XOPEN_SOURCE
 
 /* 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
 #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
 #undef _POSIX_C_SOURCE
 #define        _POSIX_C_SOURCE         199506L
 #endif


@@ -482,53 +620,49 @@
 #define _POSIX_C_SOURCE         198808L
 #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
 #else

-#  error Unknown architecture
+#define __DARWIN_C_LEVEL        __DARWIN_C_FULL

 #endif
 
 #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
 
 #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
  *****************************************/
 /*****************************************
  *  Public darwin-specific feature macros
  *****************************************/


@@ -541,14 +675,6 @@
 #define _DARWIN_FEATURE_64_BIT_INODE           1
 #endif
 
 #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
 /*
  * _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


@@ -583,4 +709,31 @@
 #define _DARWIN_FEATURE_UNIX_CONFORMANCE       3
 #endif
 
 #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_ */
 #endif /* !_CDEFS_H_ */