OPTION( PrintImages, OBJC_PRINT_IMAGES, "log image and library names as they are loaded")
OPTION( PrintImageTimes, OBJC_PRINT_IMAGE_TIMES, "measure duration of image loading steps")
OPTION( PrintLoading, OBJC_PRINT_LOAD_METHODS, "log calls to class and category +load methods")
OPTION( PrintInitializing, OBJC_PRINT_INITIALIZE_METHODS, "log calls to class +initialize methods")
OPTION( PrintResolving, OBJC_PRINT_RESOLVED_METHODS, "log methods created by +resolveClassMethod: and +resolveInstanceMethod:")
OPTION( PrintConnecting, OBJC_PRINT_CLASS_SETUP, "log progress of class and category setup")
OPTION( PrintProtocols, OBJC_PRINT_PROTOCOL_SETUP, "log progress of protocol setup")
OPTION( PrintIvars, OBJC_PRINT_IVAR_SETUP, "log processing of non-fragile ivars")
OPTION( PrintVtables, OBJC_PRINT_VTABLE_SETUP, "log processing of class vtables")
OPTION( PrintVtableImages, OBJC_PRINT_VTABLE_IMAGES, "print vtable images showing overridden methods")
OPTION( PrintCaches, OBJC_PRINT_CACHE_SETUP, "log processing of method caches")
OPTION( PrintFuture, OBJC_PRINT_FUTURE_CLASSES, "log use of future classes for toll-free bridging")
OPTION( PrintPreopt, OBJC_PRINT_PREOPTIMIZATION, "log preoptimization courtesy of dyld shared cache")
OPTION( PrintCxxCtors, OBJC_PRINT_CXX_CTORS, "log calls to C++ ctors and dtors for instance variables")
OPTION( PrintExceptions, OBJC_PRINT_EXCEPTIONS, "log exception handling")
OPTION( PrintExceptionThrow, OBJC_PRINT_EXCEPTION_THROW, "log backtrace of every objc_exception_throw()")
OPTION( PrintAltHandlers, OBJC_PRINT_ALT_HANDLERS, "log processing of exception alt handlers")
OPTION( PrintReplacedMethods, OBJC_PRINT_REPLACED_METHODS, "log methods replaced by category implementations")
OPTION( PrintDeprecation, OBJC_PRINT_DEPRECATION_WARNINGS, "warn about calls to deprecated runtime functions")
OPTION( PrintPoolHiwat, OBJC_PRINT_POOL_HIGHWATER, "log high-water marks for autorelease pools")
OPTION( PrintCustomRR, OBJC_PRINT_CUSTOM_RR, "log classes with un-optimized custom retain/release methods")
OPTION( PrintCustomAWZ, OBJC_PRINT_CUSTOM_AWZ, "log classes with un-optimized custom allocWithZone methods")
OPTION( PrintRawIsa, OBJC_PRINT_RAW_ISA, "log classes that require raw pointer isa fields")
OPTION( DebugUnload, OBJC_DEBUG_UNLOAD, "warn about poorly-behaving bundles when unloaded")
OPTION( DebugFragileSuperclasses, OBJC_DEBUG_FRAGILE_SUPERCLASSES, "warn about subclasses that may have been broken by subsequent changes to superclasses")
OPTION( DebugNilSync, OBJC_DEBUG_NIL_SYNC, "warn about @synchronized(nil), which does no synchronization")
OPTION( DebugNonFragileIvars, OBJC_DEBUG_NONFRAGILE_IVARS, "capriciously rearrange non-fragile ivars")
OPTION( DebugAltHandlers, OBJC_DEBUG_ALT_HANDLERS, "record more info about bad alt handler use")
OPTION( DebugMissingPools, OBJC_DEBUG_MISSING_POOLS, "warn about autorelease with no pool in place, which may be a leak")
OPTION( DebugPoolAllocation, OBJC_DEBUG_POOL_ALLOCATION, "halt when autorelease pools are popped out of order, and allow heap debuggers to track autorelease pools")
OPTION( DebugDuplicateClasses, OBJC_DEBUG_DUPLICATE_CLASSES, "halt when multiple classes with the same name are present")
OPTION( DebugDontCrash, OBJC_DEBUG_DONT_CRASH, "halt the process by exiting instead of crashing")
OPTION( DisableVtables, OBJC_DISABLE_VTABLES, "disable vtable dispatch")
OPTION( DisablePreopt, OBJC_DISABLE_PREOPTIMIZATION, "disable preoptimization courtesy of dyld shared cache")
OPTION( DisableTaggedPointers, OBJC_DISABLE_TAGGED_POINTERS, "disable tagged pointer optimization of NSNumber et al.")
OPTION( DisableTaggedPointerObfuscation, OBJC_DISABLE_TAG_OBFUSCATION, "disable obfuscation of tagged pointers")
OPTION( DisableNonpointerIsa, OBJC_DISABLE_NONPOINTER_ISA, "disable non-pointer isa fields")
OPTION( DisableInitializeForkSafety, OBJC_DISABLE_INITIALIZE_FORK_SAFETY, "disable safety checks for +initialize after fork")