#include <objc/runtime.h>
#include <objc/message.h>
+/* Linker metadata symbols */
+
+// NSObject was in Foundation/CF on macOS < 10.8.
+#if TARGET_OS_OSX && (__x86_64__ || __i386__)
+#if __OBJC2__
+
+OBJC_EXPORT const char __objc_nsobject_class_10_5
+ __asm__("$ld$hide$os10.5$_OBJC_CLASS_$_NSObject");
+OBJC_EXPORT const char __objc_nsobject_class_10_6
+ __asm__("$ld$hide$os10.6$_OBJC_CLASS_$_NSObject");
+OBJC_EXPORT const char __objc_nsobject_class_10_7
+ __asm__("$ld$hide$os10.7$_OBJC_CLASS_$_NSObject");
+
+OBJC_EXPORT const char __objc_nsobject_metaclass_10_5
+ __asm__("$ld$hide$os10.5$_OBJC_METACLASS_$_NSObject");
+OBJC_EXPORT const char __objc_nsobject_metaclass_10_6
+ __asm__("$ld$hide$os10.6$_OBJC_METACLASS_$_NSObject");
+OBJC_EXPORT const char __objc_nsobject_metaclass_10_7
+ __asm__("$ld$hide$os10.7$_OBJC_METACLASS_$_NSObject");
+
+OBJC_EXPORT const char __objc_nsobject_isa_10_5
+ __asm__("$ld$hide$os10.5$_OBJC_IVAR_$_NSObject.isa");
+OBJC_EXPORT const char __objc_nsobject_isa_10_6
+ __asm__("$ld$hide$os10.6$_OBJC_IVAR_$_NSObject.isa");
+OBJC_EXPORT const char __objc_nsobject_isa_10_7
+ __asm__("$ld$hide$os10.7$_OBJC_IVAR_$_NSObject.isa");
+
+#else
+
+OBJC_EXPORT const char __objc_nsobject_class_10_5
+ __asm__("$ld$hide$os10.5$.objc_class_name_NSObject");
+OBJC_EXPORT const char __objc_nsobject_class_10_6
+ __asm__("$ld$hide$os10.6$.objc_class_name_NSObject");
+OBJC_EXPORT const char __objc_nsobject_class_10_7
+ __asm__("$ld$hide$os10.7$.objc_class_name_NSObject");
+
+#endif
+#endif
+
/* Runtime startup. */
// Old static initializer. Used by old crt1.o and old bug workarounds.
-OBJC_EXPORT void _objcInit(void)
- OBJC_AVAILABLE(10.0, 2.0, 9.0, 1.0);
+OBJC_EXPORT void
+_objcInit(void)
+ OBJC_AVAILABLE(10.0, 2.0, 9.0, 1.0, 2.0);
/* Images */
#if __cplusplus >= 201103L
private:
enum : uint32_t {
+ // 1 byte assorted flags
IsReplacement = 1<<0, // used for Fix&Continue, now ignored
SupportsGC = 1<<1, // image supports GC
RequiresGC = 1<<2, // image requires GC
CorrectedSynthesize = 1<<4, // used for an old workaround, now ignored
IsSimulated = 1<<5, // image compiled for a simulator platform
HasCategoryClassProperties = 1<<6, // class properties in category_t
+ OptimizedByDyldClosure = 1 << 7, // dyld (not the shared cache) optimized this.
- SwiftVersionMaskShift = 8,
- SwiftVersionMask = 0xff << SwiftVersionMaskShift // Swift ABI version
+ // 1 byte Swift unstable ABI version number
+ SwiftUnstableVersionMaskShift = 8,
+ SwiftUnstableVersionMask = 0xff << SwiftUnstableVersionMaskShift,
+ // 2 byte Swift stable ABI version number
+ SwiftStableVersionMaskShift = 16,
+ SwiftStableVersionMask = 0xffffUL << SwiftStableVersionMaskShift
};
- public:
+ public:
enum : uint32_t {
+ // Values for SwiftUnstableVersion
+ // All stable ABIs store SwiftVersion5 here.
SwiftVersion1 = 1,
SwiftVersion1_2 = 2,
SwiftVersion2 = 3,
- SwiftVersion3 = 4
+ SwiftVersion3 = 4,
+ SwiftVersion4 = 5,
+ SwiftVersion4_1 = 6,
+ SwiftVersion4_2 = 6, // [sic]
+ SwiftVersion5 = 7
};
public:
bool requiresGC() const { return flags & RequiresGC; }
bool optimizedByDyld() const { return flags & OptimizedByDyld; }
bool hasCategoryClassProperties() const { return flags & HasCategoryClassProperties; }
- bool containsSwift() const { return (flags & SwiftVersionMask) != 0; }
- uint32_t swiftVersion() const { return (flags & SwiftVersionMask) >> SwiftVersionMaskShift; }
+ bool optimizedByDyldClosure() const { return flags & OptimizedByDyldClosure; }
+ bool containsSwift() const { return (flags & SwiftUnstableVersionMask) != 0; }
+ uint32_t swiftUnstableVersion() const { return (flags & SwiftUnstableVersionMask) >> SwiftUnstableVersionMaskShift; }
#endif
} objc_image_info;
Old ABI: Set by some compilers. Not used by the runtime.
*/
+// Description of an expected duplicate class name.
+// __DATA,__objc_dupclass stores one of these. Only the main image is
+// consulted for these purposes.
+typedef struct _objc_duplicate_class {
+ uint32_t version;
+ uint32_t flags;
+ const char name[64];
+} objc_duplicate_class;
+#define OBJC_HAS_DUPLICATE_CLASS 1
/* Properties */
// Read or write an object property. Not all object properties use these.
-OBJC_EXPORT id objc_getProperty(id self, SEL _cmd, ptrdiff_t offset, BOOL atomic)
- OBJC_AVAILABLE(10.5, 2.0, 9.0, 1.0);
-OBJC_EXPORT void objc_setProperty(id self, SEL _cmd, ptrdiff_t offset, id newValue, BOOL atomic, signed char shouldCopy)
- OBJC_AVAILABLE(10.5, 2.0, 9.0, 1.0);
+OBJC_EXPORT id _Nullable
+objc_getProperty(id _Nullable self, SEL _Nonnull _cmd,
+ ptrdiff_t offset, BOOL atomic)
+ OBJC_AVAILABLE(10.5, 2.0, 9.0, 1.0, 2.0);
+
+OBJC_EXPORT void
+objc_setProperty(id _Nullable self, SEL _Nonnull _cmd, ptrdiff_t offset,
+ id _Nullable newValue, BOOL atomic, signed char shouldCopy)
+ OBJC_AVAILABLE(10.5, 2.0, 9.0, 1.0, 2.0);
+
+OBJC_EXPORT void
+objc_setProperty_atomic(id _Nullable self, SEL _Nonnull _cmd,
+ id _Nullable newValue, ptrdiff_t offset)
+ OBJC_AVAILABLE(10.8, 6.0, 9.0, 1.0, 2.0);
-OBJC_EXPORT void objc_setProperty_atomic(id self, SEL _cmd, id newValue, ptrdiff_t offset)
- OBJC_AVAILABLE(10.8, 6.0, 9.0, 1.0);
-OBJC_EXPORT void objc_setProperty_nonatomic(id self, SEL _cmd, id newValue, ptrdiff_t offset)
- OBJC_AVAILABLE(10.8, 6.0, 9.0, 1.0);
-OBJC_EXPORT void objc_setProperty_atomic_copy(id self, SEL _cmd, id newValue, ptrdiff_t offset)
- OBJC_AVAILABLE(10.8, 6.0, 9.0, 1.0);
-OBJC_EXPORT void objc_setProperty_nonatomic_copy(id self, SEL _cmd, id newValue, ptrdiff_t offset)
- OBJC_AVAILABLE(10.8, 6.0, 9.0, 1.0);
+OBJC_EXPORT void
+objc_setProperty_nonatomic(id _Nullable self, SEL _Nonnull _cmd,
+ id _Nullable newValue, ptrdiff_t offset)
+ OBJC_AVAILABLE(10.8, 6.0, 9.0, 1.0, 2.0);
+
+OBJC_EXPORT void
+objc_setProperty_atomic_copy(id _Nullable self, SEL _Nonnull _cmd,
+ id _Nullable newValue, ptrdiff_t offset)
+ OBJC_AVAILABLE(10.8, 6.0, 9.0, 1.0, 2.0);
+
+OBJC_EXPORT void
+objc_setProperty_nonatomic_copy(id _Nullable self, SEL _Nonnull _cmd,
+ id _Nullable newValue, ptrdiff_t offset)
+ OBJC_AVAILABLE(10.8, 6.0, 9.0, 1.0, 2.0);
// Read or write a non-object property. Not all uses are C structs,
// and not all C struct properties use this.
-OBJC_EXPORT void objc_copyStruct(void *dest, const void *src, ptrdiff_t size, BOOL atomic, BOOL hasStrong)
- OBJC_AVAILABLE(10.5, 2.0, 9.0, 1.0);
+OBJC_EXPORT void
+objc_copyStruct(void * _Nonnull dest, const void * _Nonnull src,
+ ptrdiff_t size, BOOL atomic, BOOL hasStrong)
+ OBJC_AVAILABLE(10.5, 2.0, 9.0, 1.0, 2.0);
// Perform a copy of a C++ object using striped locks. Used by non-POD C++ typed atomic properties.
-OBJC_EXPORT void objc_copyCppObjectAtomic(void *dest, const void *src, void (*copyHelper) (void *dest, const void *source))
- OBJC_AVAILABLE(10.8, 6.0, 9.0, 1.0);
+OBJC_EXPORT void
+objc_copyCppObjectAtomic(void * _Nonnull dest, const void * _Nonnull src,
+ void (* _Nonnull copyHelper)
+ (void * _Nonnull dest, const void * _Nonnull source))
+ OBJC_AVAILABLE(10.8, 6.0, 9.0, 1.0, 2.0);
/* Classes. */
#if __OBJC2__
-OBJC_EXPORT IMP _objc_empty_vtable
- OBJC_AVAILABLE(10.5, 2.0, 9.0, 1.0);
+OBJC_EXPORT IMP _Nonnull _objc_empty_vtable
+ OBJC_AVAILABLE(10.5, 2.0, 9.0, 1.0, 2.0);
#endif
OBJC_EXPORT struct objc_cache _objc_empty_cache
- OBJC_AVAILABLE(10.0, 2.0, 9.0, 1.0);
+ OBJC_AVAILABLE(10.0, 2.0, 9.0, 1.0, 2.0);
/* Messages */
#if __OBJC2__
// objc_msgSendSuper2() takes the current search class, not its superclass.
-OBJC_EXPORT id objc_msgSendSuper2(struct objc_super *super, SEL op, ...)
- OBJC_AVAILABLE(10.6, 2.0, 9.0, 1.0);
-OBJC_EXPORT void objc_msgSendSuper2_stret(struct objc_super *super, SEL op,...)
- OBJC_AVAILABLE(10.6, 2.0, 9.0, 1.0)
+OBJC_EXPORT id _Nullable
+objc_msgSendSuper2(struct objc_super * _Nonnull super, SEL _Nonnull op, ...)
+ OBJC_AVAILABLE(10.6, 2.0, 9.0, 1.0, 2.0);
+
+OBJC_EXPORT void
+objc_msgSendSuper2_stret(struct objc_super * _Nonnull super,
+ SEL _Nonnull op,...)
+ OBJC_AVAILABLE(10.6, 2.0, 9.0, 1.0, 2.0)
OBJC_ARM64_UNAVAILABLE;
// objc_msgSend_noarg() may be faster for methods with no additional arguments.
-OBJC_EXPORT id objc_msgSend_noarg(id self, SEL _cmd)
- OBJC_AVAILABLE(10.7, 5.0, 9.0, 1.0);
+OBJC_EXPORT id _Nullable
+objc_msgSend_noarg(id _Nullable self, SEL _Nonnull _cmd)
+ OBJC_AVAILABLE(10.7, 5.0, 9.0, 1.0, 2.0);
#endif
#if __OBJC2__
// may perform extra sanity checking.
// Old objc_msgSendSuper() does not have a debug version; this is OBJC2 only.
// *_fixup() do not have debug versions; use non-fixup only for debug mode.
-OBJC_EXPORT id objc_msgSend_debug(id self, SEL op, ...)
- OBJC_AVAILABLE(10.7, 5.0, 9.0, 1.0);
-OBJC_EXPORT id objc_msgSendSuper2_debug(struct objc_super *super, SEL op, ...)
- OBJC_AVAILABLE(10.7, 5.0, 9.0, 1.0);
-OBJC_EXPORT void objc_msgSend_stret_debug(id self, SEL op, ...)
- OBJC_AVAILABLE(10.7, 5.0, 9.0, 1.0)
+OBJC_EXPORT id _Nullable
+objc_msgSend_debug(id _Nullable self, SEL _Nonnull op, ...)
+ OBJC_AVAILABLE(10.7, 5.0, 9.0, 1.0, 2.0);
+
+OBJC_EXPORT id _Nullable
+objc_msgSendSuper2_debug(struct objc_super * _Nonnull super,
+ SEL _Nonnull op, ...)
+ OBJC_AVAILABLE(10.7, 5.0, 9.0, 1.0, 2.0);
+
+OBJC_EXPORT void
+objc_msgSend_stret_debug(id _Nullable self, SEL _Nonnull op, ...)
+ OBJC_AVAILABLE(10.7, 5.0, 9.0, 1.0, 2.0)
OBJC_ARM64_UNAVAILABLE;
-OBJC_EXPORT void objc_msgSendSuper2_stret_debug(struct objc_super *super, SEL op,...)
- OBJC_AVAILABLE(10.7, 5.0, 9.0, 1.0)
+
+OBJC_EXPORT void
+objc_msgSendSuper2_stret_debug(struct objc_super * _Nonnull super,
+ SEL _Nonnull op,...)
+ OBJC_AVAILABLE(10.7, 5.0, 9.0, 1.0, 2.0)
OBJC_ARM64_UNAVAILABLE;
# if defined(__i386__)
-OBJC_EXPORT double objc_msgSend_fpret_debug(id self, SEL op, ...)
- OBJC_AVAILABLE(10.7, 5.0, 9.0, 1.0);
+OBJC_EXPORT double
+objc_msgSend_fpret_debug(id _Nullable self, SEL _Nonnull op, ...)
+ OBJC_AVAILABLE(10.7, 5.0, 9.0, 1.0, 2.0);
# elif defined(__x86_64__)
-OBJC_EXPORT long double objc_msgSend_fpret_debug(id self, SEL op, ...)
- OBJC_AVAILABLE(10.7, 5.0, 9.0, 1.0);
+OBJC_EXPORT long double
+objc_msgSend_fpret_debug(id _Nullable self, SEL _Nonnull op, ...)
+ OBJC_AVAILABLE(10.7, 5.0, 9.0, 1.0, 2.0);
# if __STDC_VERSION__ >= 199901L
-OBJC_EXPORT _Complex long double objc_msgSend_fp2ret_debug(id self, SEL op, ...)
- OBJC_AVAILABLE(10.7, 5.0, 9.0, 1.0);
+OBJC_EXPORT _Complex long double
+objc_msgSend_fp2ret_debug(id _Nullable self, SEL _Nonnull op, ...)
+ OBJC_AVAILABLE(10.7, 5.0, 9.0, 1.0, 2.0);
# else
-OBJC_EXPORT void objc_msgSend_fp2ret_debug(id self, SEL op, ...)
- OBJC_AVAILABLE(10.7, 5.0, 9.0, 1.0);
+OBJC_EXPORT void
+objc_msgSend_fp2ret_debug(id _Nullable self, SEL _Nonnull op, ...)
+ OBJC_AVAILABLE(10.7, 5.0, 9.0, 1.0, 2.0);
# endif
# endif
// - Red zone is not preserved.
// See each architecture's implementation for details.
-OBJC_EXPORT void objc_msgLookup(void)
- OBJC_AVAILABLE(10.12, 10.0, 10.0, 3.0);
-OBJC_EXPORT void objc_msgLookupSuper2(void)
- OBJC_AVAILABLE(10.12, 10.0, 10.0, 3.0);
-OBJC_EXPORT void objc_msgLookup_stret(void)
- OBJC_AVAILABLE(10.12, 10.0, 10.0, 3.0)
+OBJC_EXPORT void
+objc_msgLookup(void)
+ OBJC_AVAILABLE(10.12, 10.0, 10.0, 3.0, 2.0);
+
+OBJC_EXPORT void
+objc_msgLookupSuper2(void)
+ OBJC_AVAILABLE(10.12, 10.0, 10.0, 3.0, 2.0);
+
+OBJC_EXPORT void
+objc_msgLookup_stret(void)
+ OBJC_AVAILABLE(10.12, 10.0, 10.0, 3.0, 2.0)
OBJC_ARM64_UNAVAILABLE;
-OBJC_EXPORT void objc_msgLookupSuper2_stret(void)
- OBJC_AVAILABLE(10.12, 10.0, 10.0, 3.0)
+
+OBJC_EXPORT void
+objc_msgLookupSuper2_stret(void)
+ OBJC_AVAILABLE(10.12, 10.0, 10.0, 3.0, 2.0)
OBJC_ARM64_UNAVAILABLE;
# if defined(__i386__)
-OBJC_EXPORT void objc_msgLookup_fpret(void)
- OBJC_AVAILABLE(10.12, 10.0, 10.0, 3.0);
+OBJC_EXPORT void
+objc_msgLookup_fpret(void)
+ OBJC_AVAILABLE(10.12, 10.0, 10.0, 3.0, 2.0);
+
# elif defined(__x86_64__)
-OBJC_EXPORT void objc_msgLookup_fpret(void)
- OBJC_AVAILABLE(10.12, 10.0, 10.0, 3.0);
-OBJC_EXPORT void objc_msgLookup_fp2ret(void)
- OBJC_AVAILABLE(10.12, 10.0, 10.0, 3.0);
+OBJC_EXPORT void
+objc_msgLookup_fpret(void)
+ OBJC_AVAILABLE(10.12, 10.0, 10.0, 3.0, 2.0);
+
+OBJC_EXPORT void
+objc_msgLookup_fp2ret(void)
+ OBJC_AVAILABLE(10.12, 10.0, 10.0, 3.0, 2.0);
# endif
#endif
-#if TARGET_OS_OSX && defined(__x86_64__)
-// objc_msgSend_fixup() is used for vtable-dispatchable call sites.
-OBJC_EXPORT void objc_msgSend_fixup(void)
- __OSX_DEPRECATED(10.5, 10.8, "fixup dispatch is no longer optimized")
- __IOS_UNAVAILABLE __TVOS_UNAVAILABLE __WATCHOS_UNAVAILABLE;
-OBJC_EXPORT void objc_msgSend_stret_fixup(void)
- __OSX_DEPRECATED(10.5, 10.8, "fixup dispatch is no longer optimized")
- __IOS_UNAVAILABLE __TVOS_UNAVAILABLE __WATCHOS_UNAVAILABLE;
-OBJC_EXPORT void objc_msgSendSuper2_fixup(void)
- __OSX_DEPRECATED(10.5, 10.8, "fixup dispatch is no longer optimized")
- __IOS_UNAVAILABLE __TVOS_UNAVAILABLE __WATCHOS_UNAVAILABLE;
-OBJC_EXPORT void objc_msgSendSuper2_stret_fixup(void)
- __OSX_DEPRECATED(10.5, 10.8, "fixup dispatch is no longer optimized")
- __IOS_UNAVAILABLE __TVOS_UNAVAILABLE __WATCHOS_UNAVAILABLE;
-OBJC_EXPORT void objc_msgSend_fpret_fixup(void)
- __OSX_DEPRECATED(10.5, 10.8, "fixup dispatch is no longer optimized")
- __IOS_UNAVAILABLE __TVOS_UNAVAILABLE __WATCHOS_UNAVAILABLE;
-OBJC_EXPORT void objc_msgSend_fp2ret_fixup(void)
- __OSX_DEPRECATED(10.5, 10.8, "fixup dispatch is no longer optimized")
- __IOS_UNAVAILABLE __TVOS_UNAVAILABLE __WATCHOS_UNAVAILABLE;
+#if (TARGET_OS_OSX || TARGET_OS_SIMULATOR) && defined(__x86_64__)
+// objc_msgSend_fixup() was used for vtable-dispatchable call sites.
+// The symbols remain exported on macOS for binary compatibility.
+// The symbols can probably be removed from iOS simulator but we haven't tried.
+OBJC_EXPORT void
+objc_msgSend_fixup(void)
+ __OSX_DEPRECATED(10.5, 10.8, "fixup dispatch is no longer optimized");
+
+OBJC_EXPORT void
+objc_msgSend_stret_fixup(void)
+ __OSX_DEPRECATED(10.5, 10.8, "fixup dispatch is no longer optimized");
+
+OBJC_EXPORT void
+objc_msgSendSuper2_fixup(void)
+ __OSX_DEPRECATED(10.5, 10.8, "fixup dispatch is no longer optimized");
+
+OBJC_EXPORT void
+objc_msgSendSuper2_stret_fixup(void)
+ __OSX_DEPRECATED(10.5, 10.8, "fixup dispatch is no longer optimized");
+
+OBJC_EXPORT void
+objc_msgSend_fpret_fixup(void)
+ __OSX_DEPRECATED(10.5, 10.8, "fixup dispatch is no longer optimized");
+
+OBJC_EXPORT void
+objc_msgSend_fp2ret_fixup(void)
+ __OSX_DEPRECATED(10.5, 10.8, "fixup dispatch is no longer optimized");
#endif
/* C++-compatible exception handling. */
#if __OBJC2__
-// fixme these conflict with C++ compiler's internal definitions
-#if !defined(__cplusplus)
-
// Vtable for C++ exception typeinfo for Objective-C types.
-OBJC_EXPORT const void *objc_ehtype_vtable[]
- OBJC_AVAILABLE(10.5, 2.0, 9.0, 1.0);
+OBJC_EXPORT const void * _Nullable objc_ehtype_vtable[]
+ OBJC_AVAILABLE(10.5, 2.0, 9.0, 1.0, 2.0);
// C++ exception typeinfo for type `id`.
OBJC_EXPORT struct objc_typeinfo OBJC_EHTYPE_id
- OBJC_AVAILABLE(10.5, 2.0, 9.0, 1.0);
-
-#endif
+ OBJC_AVAILABLE(10.5, 2.0, 9.0, 1.0, 2.0);
// Exception personality function for Objective-C and Objective-C++ code.
struct _Unwind_Exception;
__objc_personality_v0(int version,
int actions,
uint64_t exceptionClass,
- struct _Unwind_Exception *exceptionObject,
- struct _Unwind_Context *context)
- OBJC_AVAILABLE(10.5, 2.0, 9.0, 1.0);
+ struct _Unwind_Exception * _Nonnull exceptionObject,
+ struct _Unwind_Context * _Nonnull context)
+ OBJC_AVAILABLE(10.5, 2.0, 9.0, 1.0, 2.0);
#endif
/* ARC */
-OBJC_EXPORT id objc_retainBlock(id)
- OBJC_AVAILABLE(10.7, 5.0, 9.0, 1.0);
+OBJC_EXPORT id _Nullable
+objc_retainBlock(id _Nullable)
+ OBJC_AVAILABLE(10.7, 5.0, 9.0, 1.0, 2.0);
/* Non-pointer isa */
// Extract class pointer from an isa field.
-#if TARGET_OS_SIMULATOR
+#if TARGET_OS_SIMULATOR && !TARGET_OS_MACCATALYST && !__arm64__
// No simulators use nonpointer isa yet.
#elif __LP64__
// Packed-isa version. This one is used directly by Swift code.
// (Class)(isa & (uintptr_t)&objc_absolute_packed_isa_class_mask) == class ptr
OBJC_EXPORT const struct { char c; } objc_absolute_packed_isa_class_mask
- OBJC_AVAILABLE(10.12, 10.0, 10.0, 3.0);
+ OBJC_AVAILABLE(10.12, 10.0, 10.0, 3.0, 2.0);
-#elif __ARM_ARCH_7K__ >= 2
+#elif (__ARM_ARCH_7K__ >= 2 || (__arm64__ && !__LP64__))
# define OBJC_HAVE_NONPOINTER_ISA 1
# define OBJC_HAVE_INDEXED_NONPOINTER_ISA 1
// cls = (Class)isa;
// }
OBJC_EXPORT const struct { char c; } objc_absolute_indexed_isa_magic_mask
- OBJC_AVAILABLE(10.12, 10.0, 10.0, 3.0);
+ OBJC_AVAILABLE(10.12, 10.0, 10.0, 3.0, 2.0);
OBJC_EXPORT const struct { char c; } objc_absolute_indexed_isa_magic_value
- OBJC_AVAILABLE(10.12, 10.0, 10.0, 3.0);
+ OBJC_AVAILABLE(10.12, 10.0, 10.0, 3.0, 2.0);
OBJC_EXPORT const struct { char c; } objc_absolute_indexed_isa_index_mask
- OBJC_AVAILABLE(10.12, 10.0, 10.0, 3.0);
+ OBJC_AVAILABLE(10.12, 10.0, 10.0, 3.0, 2.0);
OBJC_EXPORT const struct { char c; } objc_absolute_indexed_isa_index_shift
- OBJC_AVAILABLE(10.12, 10.0, 10.0, 3.0);
+ OBJC_AVAILABLE(10.12, 10.0, 10.0, 3.0, 2.0);
+
+#endif
#endif
-// OBJC2
+
+/* Object class */
+
+// This symbol might be required for binary compatibility, so we
+// declare it here where TAPI will see it.
+#if __OBJC__ && __OBJC2__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wobjc-interface-ivars"
+#if !defined(OBJC_DECLARE_SYMBOLS)
+__OSX_AVAILABLE(10.0)
+__IOS_UNAVAILABLE __TVOS_UNAVAILABLE
+__WATCHOS_UNAVAILABLE
+# ifndef __APPLE_BLEACH_SDK__
+__BRIDGEOS_UNAVAILABLE
+# endif
+#endif
+OBJC_ROOT_CLASS
+@interface Object {
+ Class isa;
+}
+@end
+#pragma clang diagnostic pop
#endif
+
// _OBJC_ABI_H
#endif
projects / apple / objc4.git / blobdiff