#include <TargetConditionals.h>
-// Define __OBJC2__ for the benefit of our asm files.
-#ifndef __OBJC2__
-# if TARGET_OS_OSX && !TARGET_OS_IOSMAC && __i386__
- // old ABI
-# else
-# define __OBJC2__ 1
-# endif
-#endif
-
// Avoid the !NDEBUG double negative.
#if !NDEBUG
# define DEBUG 1
#endif
// Define SUPPORT_ZONES=1 to enable malloc zone support in NXHashTable.
-#if !(TARGET_OS_OSX || TARGET_OS_IOSMAC)
+#if !(TARGET_OS_OSX || TARGET_OS_MACCATALYST)
# define SUPPORT_ZONES 0
#else
# define SUPPORT_ZONES 1
// Define SUPPORT_TAGGED_POINTERS=1 to enable tagged pointer objects
// Be sure to edit tagged pointer SPI in objc-internal.h as well.
-#if !(__OBJC2__ && __LP64__)
+#if !__LP64__
# define SUPPORT_TAGGED_POINTERS 0
#else
# define SUPPORT_TAGGED_POINTERS 1
// Define SUPPORT_MSB_TAGGED_POINTERS to use the MSB
// as the tagged pointer marker instead of the LSB.
// Be sure to edit tagged pointer SPI in objc-internal.h as well.
-#if !SUPPORT_TAGGED_POINTERS || (TARGET_OS_OSX || TARGET_OS_IOSMAC)
+#if !SUPPORT_TAGGED_POINTERS || ((TARGET_OS_OSX || TARGET_OS_MACCATALYST) && __x86_64__)
# define SUPPORT_MSB_TAGGED_POINTERS 0
#else
# define SUPPORT_MSB_TAGGED_POINTERS 1
// Define SUPPORT_PACKED_ISA=1 on platforms that store the class in the isa
// field as a maskable pointer with other data around it.
#if (!__LP64__ || TARGET_OS_WIN32 || \
- (TARGET_OS_SIMULATOR && !TARGET_OS_IOSMAC))
+ (TARGET_OS_SIMULATOR && !TARGET_OS_MACCATALYST && !__arm64__))
# define SUPPORT_PACKED_ISA 0
#else
# define SUPPORT_PACKED_ISA 1
// Define SUPPORT_ZEROCOST_EXCEPTIONS to use "zero-cost" exceptions for OBJC2.
// Be sure to edit objc-exception.h as well (objc_add/removeExceptionHandler)
-#if !__OBJC2__ || (defined(__arm__) && __USING_SJLJ_EXCEPTIONS__)
+#if defined(__arm__) && __USING_SJLJ_EXCEPTIONS__
# define SUPPORT_ZEROCOST_EXCEPTIONS 0
#else
# define SUPPORT_ZEROCOST_EXCEPTIONS 1
# define SUPPORT_MESSAGE_LOGGING 1
#endif
+// Define SUPPORT_AUTORELEASEPOOL_DEDDUP_PTRS to combine consecutive pointers to the same object in autorelease pools
+#if !__LP64__
+# define SUPPORT_AUTORELEASEPOOL_DEDUP_PTRS 0
+#else
+# define SUPPORT_AUTORELEASEPOOL_DEDUP_PTRS 1
+#endif
+
// Define HAVE_TASK_RESTARTABLE_RANGES to enable usage of
// task_restartable_ranges_synchronize()
#if TARGET_OS_SIMULATOR || defined(__i386__) || defined(__arm__) || !TARGET_OS_MAC
// because objc-class.h is public and objc-config.h is not.
//#define OBJC_INSTRUMENTED
-// In __OBJC2__, the runtimeLock is a mutex always held
-// hence the cache lock is redundant and can be elided.
+// The runtimeLock is a mutex always held hence the cache lock is
+// redundant and can be elided.
//
// If the runtime lock ever becomes a rwlock again,
// the cache lock would need to be used again
-#if __OBJC2__
#define CONFIG_USE_CACHE_LOCK 0
-#else
-#define CONFIG_USE_CACHE_LOCK 1
-#endif
// Determine how the method cache stores IMPs.
#define CACHE_IMP_ENCODING_NONE 1 // Method cache contains raw IMP.
#define CACHE_MASK_STORAGE_OUTLINED 1
#define CACHE_MASK_STORAGE_HIGH_16 2
#define CACHE_MASK_STORAGE_LOW_4 3
+#define CACHE_MASK_STORAGE_HIGH_16_BIG_ADDRS 4
#if defined(__arm64__) && __LP64__
+#if TARGET_OS_OSX || TARGET_OS_SIMULATOR
+#define CACHE_MASK_STORAGE CACHE_MASK_STORAGE_HIGH_16_BIG_ADDRS
+#else
#define CACHE_MASK_STORAGE CACHE_MASK_STORAGE_HIGH_16
+#endif
#elif defined(__arm64__) && !__LP64__
#define CACHE_MASK_STORAGE CACHE_MASK_STORAGE_LOW_4
#else
#define CACHE_MASK_STORAGE CACHE_MASK_STORAGE_OUTLINED
#endif
+// Constants used for signing/authing isas. This doesn't quite belong
+// here, but the asm files can't import other headers.
+#define ISA_SIGNING_DISCRIMINATOR 0x6AE1
+#define ISA_SIGNING_DISCRIMINATOR_CLASS_SUPERCLASS 0xB5AB
+
+#define ISA_SIGNING_KEY ptrauth_key_process_independent_data
+
+// ISA signing authentication modes. Set ISA_SIGNING_AUTH_MODE to one
+// of these to choose how ISAs are authenticated.
+#define ISA_SIGNING_STRIP 1 // Strip the signature whenever reading an ISA.
+#define ISA_SIGNING_AUTH 2 // Authenticate the signature on all ISAs.
+
+
+// ISA signing modes. Set ISA_SIGNING_SIGN_MODE to one of these to
+// choose how ISAs are signed.
+#define ISA_SIGNING_SIGN_NONE 1 // Sign no ISAs.
+#define ISA_SIGNING_SIGN_ONLY_SWIFT 2 // Only sign ISAs of Swift objects.
+#define ISA_SIGNING_SIGN_ALL 3 // Sign all ISAs.
+
+#if __has_feature(ptrauth_objc_isa_strips) || __has_feature(ptrauth_objc_isa_signs) || __has_feature(ptrauth_objc_isa_authenticates)
+# if __has_feature(ptrauth_objc_isa_authenticates)
+# define ISA_SIGNING_AUTH_MODE ISA_SIGNING_AUTH
+# else
+# define ISA_SIGNING_AUTH_MODE ISA_SIGNING_STRIP
+# endif
+# if __has_feature(ptrauth_objc_isa_signs)
+# define ISA_SIGNING_SIGN_MODE ISA_SIGNING_SIGN_ALL
+# else
+# define ISA_SIGNING_SIGN_MODE ISA_SIGNING_SIGN_NONE
+# endif
+#else
+# if __has_feature(ptrauth_objc_isa)
+# define ISA_SIGNING_AUTH_MODE ISA_SIGNING_AUTH
+# define ISA_SIGNING_SIGN_MODE ISA_SIGNING_SIGN_ALL
+# else
+# define ISA_SIGNING_AUTH_MODE ISA_SIGNING_STRIP
+# define ISA_SIGNING_SIGN_MODE ISA_SIGNING_SIGN_NONE
+# endif
+#endif
+
+// When set, an unsigned superclass pointer is treated as Nil, which
+// will treat the class as if its superclass was weakly linked and
+// not loaded, and cause uses of the class to resolve to Nil.
+#define SUPERCLASS_SIGNING_TREAT_UNSIGNED_AS_NIL 0
+
+#if defined(__arm64__) && TARGET_OS_IOS && !TARGET_OS_SIMULATOR && !TARGET_OS_MACCATALYST
+#define CONFIG_USE_PREOPT_CACHES 1
+#else
+#define CONFIG_USE_PREOPT_CACHES 0
+#endif
+
+// When set to 1, small methods in the shared cache have a direct
+// offset to a selector. When set to 0, small methods in the shared
+// cache have the same format as other small methods, with an offset
+// to a selref.
+#define CONFIG_SHARED_CACHE_RELATIVE_DIRECT_SELECTORS 1
+
#endif
projects / apple / objc4.git / blobdiff