xnu-3248.40.184.tar.gz

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

diff --git a/bsd/sys/cdefs.h b/bsd/sys/cdefs.h
index 7c729026f904ec543af282b1f2b84a62a5f96d66..a8d95eb3a9e43db6ac7ce7f1ee02450442bba938 100644 (file)
--- a/bsd/sys/cdefs.h
+++ b/bsd/sys/cdefs.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2015 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -81,6 +81,26 @@
 #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.
@@ -155,26 +175,17 @@
  */
 #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
 
 /* __unavailable causes the compiler to error out when encountering
@@ -198,6 +209,22 @@
 #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
+#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
@@ -369,6 +396,30 @@
 #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
@@ -381,6 +432,18 @@
 #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_MacOSX
 /* Platform: MacOSX */
 #define __DARWIN_ONLY_64_BIT_INO_T     0
@@ -561,7 +624,7 @@
 #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 */
 
@@ -736,4 +799,14 @@
 #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
+
 #endif /* !_CDEFS_H_ */