/*
- * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2018 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
+ *
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
- *
+ *
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
+ *
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
- *
+ *
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/* Copyright 1995 NeXT Computer, Inc. All rights reserved. */
* @(#)cdefs.h 8.8 (Berkeley) 1/9/95
*/
-#ifndef _CDEFS_H_
-#define _CDEFS_H_
+#ifndef _CDEFS_H_
+#define _CDEFS_H_
#if defined(__cplusplus)
-#define __BEGIN_DECLS extern "C" {
-#define __END_DECLS }
+#define __BEGIN_DECLS extern "C" {
+#define __END_DECLS }
#else
-#define __BEGIN_DECLS
-#define __END_DECLS
+#define __BEGIN_DECLS
+#define __END_DECLS
#endif
/* This SDK is designed to work with clang and specific versions of
#warning "Unsupported compiler detected"
#endif
+/*
+ * Compatibility with compilers and environments that don't support compiler
+ * feature checking function-like macros.
+ */
+#ifndef __has_builtin
+#define __has_builtin(x) 0
+#endif
+#ifndef __has_include
+#define __has_include(x) 0
+#endif
+#ifndef __has_feature
+#define __has_feature(x) 0
+#endif
+#ifndef __has_attribute
+#define __has_attribute(x) 0
+#endif
+#ifndef __has_extension
+#define __has_extension(x) 0
+#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.
* strings produced by the __STRING macro, but this only works with ANSI C.
*/
#if defined(__STDC__) || defined(__cplusplus)
-#define __P(protos) protos /* full-blown ANSI C */
-#define __CONCAT(x,y) x ## y
-#define __STRING(x) #x
+#define __P(protos) protos /* full-blown ANSI C */
+#define __CONCAT(x, y) x ## y
+#define __STRING(x) #x
-#define __const const /* define reserved names to standard */
-#define __signed signed
-#define __volatile volatile
+#define __const const /* define reserved names to standard */
+#define __signed signed
+#define __volatile volatile
#if defined(__cplusplus)
-#define __inline inline /* convert to C++ keyword */
+#define __inline inline /* convert to C++ keyword */
#else
#ifndef __GNUC__
-#define __inline /* delete GCC keyword */
+#define __inline /* delete GCC keyword */
#endif /* !__GNUC__ */
#endif /* !__cplusplus */
-#else /* !(__STDC__ || __cplusplus) */
-#define __P(protos) () /* traditional C preprocessor */
-#define __CONCAT(x,y) x/**/y
-#define __STRING(x) "x"
+#else /* !(__STDC__ || __cplusplus) */
+#define __P(protos) () /* traditional C preprocessor */
+#define __CONCAT(x, y) x /**/ y
+#define __STRING(x) "x"
#ifndef __GNUC__
-#define __const /* delete pseudo-ANSI C keywords */
-#define __inline
-#define __signed
-#define __volatile
-#endif /* !__GNUC__ */
+#define __const /* delete pseudo-ANSI C keywords */
+#define __inline
+#define __signed
+#define __volatile
+#endif /* !__GNUC__ */
/*
* In non-ANSI C environments, new programs will want ANSI-only C keywords
* When using "gcc -traditional", we assume that this is the intent; if
* __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone.
*/
-#ifndef NO_ANSI_KEYWORDS
-#define const __const /* convert ANSI C keywords */
-#define inline __inline
-#define signed __signed
-#define volatile __volatile
+#ifndef NO_ANSI_KEYWORDS
+#define const __const /* convert ANSI C keywords */
+#define inline __inline
+#define signed __signed
+#define volatile __volatile
#endif /* !NO_ANSI_KEYWORDS */
#endif /* !(__STDC__ || __cplusplus) */
-#define __dead2 __attribute__((noreturn))
-#define __pure2 __attribute__((const))
+#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))
+#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))
+#define __used __attribute__((__used__))
+
+/* __cold marks code used for debugging or that is rarely taken
+ * and tells the compiler to optimize for size and outline code.
+ */
+#if __has_attribute(cold)
+#define __cold __attribute__((__cold__))
+#else
+#define __cold
+#endif
/* __deprecated causes the compiler to produce a warning when encountering
* code using the deprecated functionality.
* 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.
+ * __kpi_deprecated() specifically indicates deprecation of kernel programming
+ * interfaces in Kernel.framework used by KEXTs.
*/
-#define __deprecated __attribute__((deprecated))
+#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)))
+#if __has_extension(attribute_deprecated_with_message) || \
+ (defined(__GNUC__) && ((__GNUC__ >= 5) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5))))
+ #define __deprecated_msg(_msg) __attribute__((__deprecated__(_msg)))
#else
- #define __deprecated_msg(_msg) __attribute__((deprecated))
+ #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
+#if __has_extension(enumerator_attributes)
+ #define __deprecated_enum_msg(_msg) __deprecated_msg(_msg)
#else
- #define __deprecated_enum_msg(_msg)
+ #define __deprecated_enum_msg(_msg)
#endif
+#if defined(KERNEL) && !defined(KERNEL_PRIVATE)
+#define __kpi_deprecated(_msg) __deprecated_msg(_msg)
+#else /* !defined(KERNEL) || defined(KERNEL_PRIVATE) */
+#define __kpi_deprecated(_msg)
+#endif /* !defined(KERNEL) || defined(KERNEL_PRIVATE) */
+
/* __unavailable causes the compiler to error out when encountering
* code using the tagged function of variable.
*/
-#define __unavailable __attribute__((unavailable))
+#define __unavailable __attribute__((__unavailable__))
/* Delete pseudo-keywords wherever they are not available or needed. */
#ifndef __dead
-#define __dead
-#define __pure
+#define __dead
+#define __pure
#endif
/*
#if __STDC_VERSION__ < 199901
#define __restrict
#else
-#define __restrict restrict
+#define __restrict restrict
+#endif
+
+/* Compatibility with compilers and environments that don't support the
+ * nullability feature.
+ */
+
+#if !__has_feature(nullability)
+#ifndef __nullable
+#define __nullable
+#endif
+#ifndef __nonnull
+#define __nonnull
+#endif
+#ifndef __null_unspecified
+#define __null_unspecified
+#endif
+#ifndef _Nullable
+#define _Nullable
+#endif
+#ifndef _Nonnull
+#define _Nonnull
+#endif
+#ifndef _Null_unspecified
+#define _Null_unspecified
+#endif
+#endif
+
+/*
+ * __disable_tail_calls causes the compiler to not perform tail call
+ * optimization inside the marked function.
+ */
+#if __has_attribute(disable_tail_calls)
+#define __disable_tail_calls __attribute__((__disable_tail_calls__))
+#else
+#define __disable_tail_calls
+#endif
+
+/*
+ * __not_tail_called causes the compiler to prevent tail call optimization
+ * on statically bound calls to the function. It has no effect on indirect
+ * calls. Virtual functions, objective-c methods, and functions marked as
+ * "always_inline" cannot be marked as __not_tail_called.
+ */
+#if __has_attribute(not_tail_called)
+#define __not_tail_called __attribute__((__not_tail_called__))
+#else
+#define __not_tail_called
+#endif
+
+/*
+ * __result_use_check warns callers of a function that not using the function
+ * return value is a bug, i.e. dismissing malloc() return value results in a
+ * memory leak.
+ */
+#if __has_attribute(warn_unused_result)
+#define __result_use_check __attribute__((__warn_unused_result__))
+#else
+#define __result_use_check
+#endif
+
+/*
+ * __swift_unavailable causes the compiler to mark a symbol as specifically
+ * unavailable in Swift, regardless of any other availability in C.
+ */
+#if __has_feature(attribute_availability_swift)
+#define __swift_unavailable(_msg) __attribute__((__availability__(swift, unavailable, message=_msg)))
+#else
+#define __swift_unavailable(_msg)
+#endif
+
+/*
+ * __abortlike is the attribute to put on functions like abort() that are
+ * typically used to mark assertions. These optimize the codegen
+ * for outlining while still maintaining debugability.
+ */
+#ifndef __abortlike
+#define __abortlike __dead2 __cold __not_tail_called
#endif
/* Declaring inline functions within headers is error-prone due to differences
*/
#if defined(__cplusplus) || \
- (__STDC_VERSION__ >= 199901L && \
- !defined(__GNUC_GNU_INLINE__) && \
- (!defined(__GNUC__) || defined(__clang__)))
+ (__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.
- */
+/* 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.
- */
+/* 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
+
/*
* Compiler-dependent macros to declare that functions take printf-like
* or scanf-like arguments. They are null except for versions of gcc
* types.
*/
#define __printflike(fmtarg, firstvararg) \
- __attribute__((__format__ (__printf__, fmtarg, firstvararg)))
+ __attribute__((__format__ (__printf__, fmtarg, firstvararg)))
+#define __printf0like(fmtarg, firstvararg) \
+ __attribute__((__format__ (__printf0__, fmtarg, firstvararg)))
#define __scanflike(fmtarg, firstvararg) \
- __attribute__((__format__ (__scanf__, fmtarg, firstvararg)))
+ __attribute__((__format__ (__scanf__, fmtarg, firstvararg)))
-#define __IDSTRING(name,string) static const char name[] __used = string
+#define __IDSTRING(name, string) static const char name[] __used = string
#ifndef __COPYRIGHT
#define __COPYRIGHT(s) __IDSTRING(copyright,s)
/* Source compatibility only, ID string not emitted in object file */
#ifndef __FBSDID
-#define __FBSDID(s)
+#define __FBSDID(s)
#endif
-#ifndef __DECONST
-#define __DECONST(type, var) __CAST_AWAY_QUALIFIER(var, const, type)
+#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)
+#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)
+#ifndef __DEQUALIFY
+#define __DEQUALIFY(type, var) __CAST_AWAY_QUALIFIER(var, const volatile, type)
#endif
+/*
+ * __alloc_size can be used to label function arguments that represent the
+ * size of memory that the function allocates and returns. The one-argument
+ * form labels a single argument that gives the allocation size (where the
+ * arguments are numbered from 1):
+ *
+ * void *malloc(size_t __size) __alloc_size(1);
+ *
+ * The two-argument form handles the case where the size is calculated as the
+ * product of two arguments:
+ *
+ * void *calloc(size_t __count, size_t __size) __alloc_size(1,2);
+ */
+#ifndef __alloc_size
+#if __has_attribute(alloc_size)
+#define __alloc_size(...) __attribute__((alloc_size(__VA_ARGS__)))
+#else
+#define __alloc_size(...)
+#endif
+#endif // __alloc_size
+
/*
* COMPILATION ENVIRONMENTS -- see compat(5) for additional detail
*
/* These settings are particular to each product. */
#ifdef KERNEL
-#define __DARWIN_ONLY_64_BIT_INO_T 0
-#define __DARWIN_ONLY_UNIX_CONFORMANCE 0
-#define __DARWIN_ONLY_VERS_1050 0
-#define __DARWIN_SUF_DARWIN10 "_darwin10"
-#define __DARWIN10_ALIAS(sym) __asm("_" __STRING(sym) __DARWIN_SUF_DARWIN10)
+#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 PLATFORM_iPhoneOS
/* Platform: iPhoneOS */
-#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 /* 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 /* PLATFORM_iPhoneSimulator */
+#ifdef PLATFORM_tvOS
+/* Platform: tvOS */
+#define __DARWIN_ONLY_64_BIT_INO_T 1
+#define __DARWIN_ONLY_UNIX_CONFORMANCE 1
+#define __DARWIN_ONLY_VERS_1050 1
+#endif /* PLATFORM_tvOS */
+#ifdef PLATFORM_AppleTVOS
+/* Platform: AppleTVOS */
+#define __DARWIN_ONLY_64_BIT_INO_T 1
+#define __DARWIN_ONLY_UNIX_CONFORMANCE 1
+#define __DARWIN_ONLY_VERS_1050 1
+#endif /* PLATFORM_AppleTVOS */
+#ifdef PLATFORM_tvSimulator
+/* Platform: tvSimulator */
+#define __DARWIN_ONLY_64_BIT_INO_T 1
+#define __DARWIN_ONLY_UNIX_CONFORMANCE 1
+#define __DARWIN_ONLY_VERS_1050 1
+#endif /* PLATFORM_tvSimulator */
+#ifdef PLATFORM_AppleTVSimulator
+/* Platform: AppleTVSimulator */
+#define __DARWIN_ONLY_64_BIT_INO_T 1
+#define __DARWIN_ONLY_UNIX_CONFORMANCE 1
+#define __DARWIN_ONLY_VERS_1050 1
+#endif /* PLATFORM_AppleTVSimulator */
+#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 /* 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_WatchOS
+/* Platform: WatchOS */
+#define __DARWIN_ONLY_64_BIT_INO_T 1
+#define __DARWIN_ONLY_UNIX_CONFORMANCE 1
+#define __DARWIN_ONLY_VERS_1050 1
+#endif /* PLATFORM_WatchOS */
+#ifdef PLATFORM_WatchSimulator
+/* Platform: WatchSimulator */
+#define __DARWIN_ONLY_64_BIT_INO_T 1
+#define __DARWIN_ONLY_UNIX_CONFORMANCE 1
+#define __DARWIN_ONLY_VERS_1050 1
+#endif /* PLATFORM_WatchSimulator */
+#ifdef PLATFORM_BridgeOS
+/* Platform: BridgeOS */
+#define __DARWIN_ONLY_64_BIT_INO_T 1
+#define __DARWIN_ONLY_UNIX_CONFORMANCE 1
+#define __DARWIN_ONLY_VERS_1050 1
+#endif /* PLATFORM_BridgeOS */
+#ifdef PLATFORM_DriverKit
+/* Platform: DriverKit */
+#define __DARWIN_ONLY_64_BIT_INO_T 1
+#define __DARWIN_ONLY_UNIX_CONFORMANCE 1
+#define __DARWIN_ONLY_VERS_1050 1
+#endif /* PLATFORM_DriverKit */
#ifdef PLATFORM_MacOSX
/* Platform: MacOSX */
-#define __DARWIN_ONLY_64_BIT_INO_T 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
+#define __DARWIN_ONLY_VERS_1050 0
#endif /* PLATFORM_MacOSX */
#endif /* KERNEL */
#if !defined(__DARWIN_UNIX03)
# if defined(KERNEL)
-# define __DARWIN_UNIX03 0
+# define __DARWIN_UNIX03 0
# elif __DARWIN_ONLY_UNIX_CONFORMANCE
# if defined(_NONSTD_SOURCE)
# 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
+# 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."
# endif /* _NONSTD_SOURCE */
-# define __DARWIN_UNIX03 1
+# define __DARWIN_UNIX03 1
# elif defined(_NONSTD_SOURCE)
-# define __DARWIN_UNIX03 0
+# define __DARWIN_UNIX03 0
# else /* default */
-# if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && ((__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__-0) < 1050)
-# define __DARWIN_UNIX03 0
+# if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && ((__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ - 0) < 1050)
+# define __DARWIN_UNIX03 0
# else /* __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1050 */
-# define __DARWIN_UNIX03 1
+# define __DARWIN_UNIX03 1
# endif /* __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1050 */
# endif /* _DARWIN_C_SOURCE || _XOPEN_SOURCE || _POSIX_C_SOURCE || __LP64__ */
#endif /* !__DARWIN_UNIX03 */
# else /* default */
# if __DARWIN_ONLY_64_BIT_INO_T
# define __DARWIN_64_BIT_INO_T 1
-# elif defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && ((__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__-0) < 1060) || __DARWIN_UNIX03 == 0
+# 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
# 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) || __DARWIN_UNIX03 == 0
+# 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
*/
#if __DARWIN_UNIX03
# if __DARWIN_ONLY_UNIX_CONFORMANCE
-# define __DARWIN_SUF_UNIX03 /* nothing */
+# define __DARWIN_SUF_UNIX03 /* nothing */
# else /* !__DARWIN_ONLY_UNIX_CONFORMANCE */
-# define __DARWIN_SUF_UNIX03 "$UNIX2003"
+# define __DARWIN_SUF_UNIX03 "$UNIX2003"
# endif /* __DARWIN_ONLY_UNIX_CONFORMANCE */
# if __DARWIN_64_BIT_INO_T
# if __DARWIN_ONLY_64_BIT_INO_T
-# define __DARWIN_SUF_64_BIT_INO_T /* nothing */
+# define __DARWIN_SUF_64_BIT_INO_T /* nothing */
# else /* !__DARWIN_ONLY_64_BIT_INO_T */
-# define __DARWIN_SUF_64_BIT_INO_T "$INODE64"
+# define __DARWIN_SUF_64_BIT_INO_T "$INODE64"
# endif /* __DARWIN_ONLY_64_BIT_INO_T */
# else /* !__DARWIN_64_BIT_INO_T */
-# define __DARWIN_SUF_64_BIT_INO_T /* nothing */
+# define __DARWIN_SUF_64_BIT_INO_T /* nothing */
# endif /* __DARWIN_64_BIT_INO_T */
# if __DARWIN_VERS_1050
# if __DARWIN_ONLY_VERS_1050
-# define __DARWIN_SUF_1050 /* nothing */
+# define __DARWIN_SUF_1050 /* nothing */
# else /* !__DARWIN_ONLY_VERS_1050 */
-# define __DARWIN_SUF_1050 "$1050"
+# define __DARWIN_SUF_1050 "$1050"
# endif /* __DARWIN_ONLY_VERS_1050 */
# else /* !__DARWIN_VERS_1050 */
-# define __DARWIN_SUF_1050 /* nothing */
+# define __DARWIN_SUF_1050 /* nothing */
# endif /* __DARWIN_VERS_1050 */
# if __DARWIN_NON_CANCELABLE
-# define __DARWIN_SUF_NON_CANCELABLE "$NOCANCEL"
+# define __DARWIN_SUF_NON_CANCELABLE "$NOCANCEL"
# else /* !__DARWIN_NON_CANCELABLE */
-# define __DARWIN_SUF_NON_CANCELABLE /* nothing */
+# define __DARWIN_SUF_NON_CANCELABLE /* nothing */
# endif /* __DARWIN_NON_CANCELABLE */
#else /* !__DARWIN_UNIX03 */
-# define __DARWIN_SUF_UNIX03 /* nothing */
-# define __DARWIN_SUF_64_BIT_INO_T /* nothing */
-# define __DARWIN_SUF_NON_CANCELABLE /* nothing */
-# define __DARWIN_SUF_1050 /* nothing */
+# define __DARWIN_SUF_UNIX03 /* nothing */
+# define __DARWIN_SUF_64_BIT_INO_T /* nothing */
+# define __DARWIN_SUF_NON_CANCELABLE /* nothing */
+# define __DARWIN_SUF_1050 /* nothing */
#endif /* __DARWIN_UNIX03 */
-#define __DARWIN_SUF_EXTSN "$DARWIN_EXTSN"
+#define __DARWIN_SUF_EXTSN "$DARWIN_EXTSN"
/*
* symbol versioning macros
*/
-#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_INODE64(sym) __asm("_" __STRING(sym) __DARWIN_SUF_64_BIT_INO_T)
+#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_1050ALIAS(sym) __asm("_" __STRING(sym) __DARWIN_SUF_1050 __DARWIN_SUF_UNIX03)
-#define __DARWIN_1050ALIAS_C(sym) __asm("_" __STRING(sym) __DARWIN_SUF_1050 __DARWIN_SUF_NON_CANCELABLE __DARWIN_SUF_UNIX03)
-#define __DARWIN_1050ALIAS_I(sym) __asm("_" __STRING(sym) __DARWIN_SUF_1050 __DARWIN_SUF_64_BIT_INO_T __DARWIN_SUF_UNIX03)
-#define __DARWIN_1050INODE64(sym) __asm("_" __STRING(sym) __DARWIN_SUF_1050 __DARWIN_SUF_64_BIT_INO_T)
+#define __DARWIN_1050(sym) __asm("_" __STRING(sym) __DARWIN_SUF_1050)
+#define __DARWIN_1050ALIAS(sym) __asm("_" __STRING(sym) __DARWIN_SUF_1050 __DARWIN_SUF_UNIX03)
+#define __DARWIN_1050ALIAS_C(sym) __asm("_" __STRING(sym) __DARWIN_SUF_1050 __DARWIN_SUF_NON_CANCELABLE __DARWIN_SUF_UNIX03)
+#define __DARWIN_1050ALIAS_I(sym) __asm("_" __STRING(sym) __DARWIN_SUF_1050 __DARWIN_SUF_64_BIT_INO_T __DARWIN_SUF_UNIX03)
+#define __DARWIN_1050INODE64(sym) __asm("_" __STRING(sym) __DARWIN_SUF_1050 __DARWIN_SUF_64_BIT_INO_T)
-#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)
+#if XNU_KERNEL_PRIVATE
+#define __XNU_INTERNAL(sym) __asm("_" __STRING(sym) "$XNU_INTERNAL")
+#endif
/*
* symbol release macros
#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)
+#define __DARWIN_ALIAS_STARTING(_mac, _iphone, x) x
#endif
#endif /* KERNEL */
/* Deal with IEEE Std. 1003.1-1990, in which _POSIX_C_SOURCE == 1L. */
#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 1L
#undef _POSIX_C_SOURCE
-#define _POSIX_C_SOURCE 199009L
+#define _POSIX_C_SOURCE 199009L
#endif
/* Deal with IEEE Std. 1003.2-1992, in which _POSIX_C_SOURCE == 2L. */
#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 2L
#undef _POSIX_C_SOURCE
-#define _POSIX_C_SOURCE 199209L
+#define _POSIX_C_SOURCE 199209L
#endif
/* Deal with various X/Open Portability Guides and Single UNIX Spec. */
#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
+#define _POSIX_C_SOURCE 200112L
#elif _XOPEN_SOURCE - 0L >= 500L && (!defined(_POSIX_C_SOURCE) || _POSIX_C_SOURCE - 0L < 199506L)
#undef _POSIX_C_SOURCE
-#define _POSIX_C_SOURCE 199506L
+#define _POSIX_C_SOURCE 199506L
#endif
#endif
* 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__))
+#if (defined(__STRICT_ANSI__) && (__STDC_VERSION__ - 0 < 199901L) && !defined(__GNUG__))
+#define __DARWIN_NO_LONG_LONG 1
+#else
+#define __DARWIN_NO_LONG_LONG 0
+#endif
/*****************************************
- * Public darwin-specific feature macros
- *****************************************/
+* Public darwin-specific feature macros
+*****************************************/
/*
* _DARWIN_FEATURE_64_BIT_INODE indicates that the ino_t type is 64-bit, and
* structures modified for 64-bit inodes (like struct stat) will be used.
*/
#if __DARWIN_64_BIT_INO_T
-#define _DARWIN_FEATURE_64_BIT_INODE 1
+#define _DARWIN_FEATURE_64_BIT_INODE 1
#endif
/*
* struct stat will already be the 64-bit version.
*/
#if __DARWIN_ONLY_64_BIT_INO_T
-#define _DARWIN_FEATURE_ONLY_64_BIT_INODE 1
+#define _DARWIN_FEATURE_ONLY_64_BIT_INODE 1
#endif
/*
* in 10.5 exists; no pre-10.5 variants are available.
*/
#if __DARWIN_ONLY_VERS_1050
-#define _DARWIN_FEATURE_ONLY_VERS_1050 1
+#define _DARWIN_FEATURE_ONLY_VERS_1050 1
#endif
/*
* are available (the legacy BSD APIs are not available)
*/
#if __DARWIN_ONLY_UNIX_CONFORMANCE
-#define _DARWIN_FEATURE_ONLY_UNIX_CONFORMANCE 1
+#define _DARWIN_FEATURE_ONLY_UNIX_CONFORMANCE 1
#endif
/*
* and specifies the conformance level (3 is SUSv3)
*/
#if __DARWIN_UNIX03
-#define _DARWIN_FEATURE_UNIX_CONFORMANCE 3
+#define _DARWIN_FEATURE_UNIX_CONFORMANCE 3
#endif
-/*
+#if defined(DRIVERKIT) && !defined(KERNEL)
+/*
+ * __DRIVERKIT_LIBC__ indicates to the C++ standard library headers and
+ * similar components that only the restricted set of standard C library
+ * functionality and headers for the DriverKit userspace driver environment
+ * are available.
+ */
+#define __DRIVERKIT_LIBC__ 1
+#endif /* defined(DRIVERKIT) && !defined(KERNEL) */
+
+/*
* This macro casts away the qualifier from the variable
*
* Note: use at your own risk, removing qualifiers can result in
*/
#if !defined(__sys_cdefs_arch_unknown__) && defined(__i386__)
#elif !defined(__sys_cdefs_arch_unknown__) && defined(__x86_64__)
+#elif !defined(__sys_cdefs_arch_unknown__) && defined(__arm__)
+#elif !defined(__sys_cdefs_arch_unknown__) && defined(__arm64__)
#else
#error Unsupported architecture
#endif
+#ifdef XNU_KERNEL_PRIVATE
+/*
+ * Selectively ignore cast alignment warnings
+ */
+#define __IGNORE_WCASTALIGN(x) _Pragma("clang diagnostic push") \
+ _Pragma("clang diagnostic ignored \"-Wcast-align\"") \
+ x; \
+ _Pragma("clang diagnostic pop")
+#endif
+
+#if defined(PRIVATE) || defined(KERNEL)
+/*
+ * Check if __probable and __improbable have already been defined elsewhere.
+ * These macros inform the compiler (and humans) about which branches are likely
+ * to be taken.
+ */
+#if !defined(__probable) && !defined(__improbable)
+#define __probable(x) __builtin_expect(!!(x), 1)
+#define __improbable(x) __builtin_expect(!!(x), 0)
+#endif /* !defined(__probable) && !defined(__improbable) */
+
+#if defined(__cplusplus)
+#define __container_of(ptr, type, field) __extension__({ \
+ const typeof(((type *)nullptr)->field) *__ptr = (ptr); \
+ (type *)((uintptr_t)__ptr - offsetof(type, field)); \
+ })
+#else
+#define __container_of(ptr, type, field) __extension__({ \
+ const typeof(((type *)NULL)->field) *__ptr = (ptr); \
+ (type *)((uintptr_t)__ptr - offsetof(type, field)); \
+ })
+#endif
+
+#endif /* KERNEL || PRIVATE */
+
+#define __compiler_barrier() __asm__ __volatile__("" ::: "memory")
+
+#if __has_attribute(enum_extensibility)
+#define __enum_open __attribute__((__enum_extensibility__(open)))
+#define __enum_closed __attribute__((__enum_extensibility__(closed)))
+#else
+#define __enum_open
+#define __enum_closed
+#endif // __has_attribute(enum_extensibility)
+
+#if __has_attribute(flag_enum)
+#define __enum_options __attribute__((__flag_enum__))
+#else
+#define __enum_options
+#endif
+
+/*
+ * Similar to OS_ENUM/OS_CLOSED_ENUM/OS_OPTIONS/OS_CLOSED_OPTIONS
+ *
+ * This provides more advanced type checking on compilers supporting
+ * the proper extensions, even in C.
+ */
+#if __has_feature(objc_fixed_enum) || __has_extension(cxx_fixed_enum) || \
+ __has_extension(cxx_strong_enums)
+#define __enum_decl(_name, _type, ...) \
+ typedef enum : _type __VA_ARGS__ __enum_open _name
+#define __enum_closed_decl(_name, _type, ...) \
+ typedef enum : _type __VA_ARGS__ __enum_closed _name
+#define __options_decl(_name, _type, ...) \
+ typedef enum : _type __VA_ARGS__ __enum_open __enum_options _name
+#define __options_closed_decl(_name, _type, ...) \
+ typedef enum : _type __VA_ARGS__ __enum_closed __enum_options _name
+#else
+#define __enum_decl(_name, _type, ...) \
+ typedef _type _name; enum __VA_ARGS__ __enum_open
+#define __enum_closed_decl(_name, _type, ...) \
+ typedef _type _name; enum __VA_ARGS__ __enum_closed
+#define __options_decl(_name, _type, ...) \
+ typedef _type _name; enum __VA_ARGS__ __enum_open __enum_options
+#define __options_closed_decl(_name, _type, ...) \
+ typedef _type _name; enum __VA_ARGS__ __enum_closed __enum_options
+#endif
+
#endif /* !_CDEFS_H_ */
projects / apple / xnu.git / blobdiff