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src/dyldAPIsInLibSystem.cpp dyld-852.2 dyld-832.7.1
--- dyld/dyld-852.2/src/dyldAPIsInLibSystem.cpp
+++ dyld/dyld-832.7.1/src/dyldAPIsInLibSystem.cpp
@@ -46,8 +46,6 @@
 #include <mach-o/dyld.h>
 #include <mach-o/dyld_priv.h>
 
-#include <ptrauth.h>
-
 #include "dyld_cache_format.h"
 #include "objc-shared-cache.h"
 
@@ -75,17 +73,6 @@
 //
 extern "C" int _dyld_func_lookup(const char* dyld_func_name, void **address);
 
-template<typename T>
-static void dyld_func_lookup_and_resign(const char *dyld_func_name, T *__ptrauth_dyld_function_ptr* address) {
-    void *funcAsVoidPtr;
-    int res = _dyld_func_lookup(dyld_func_name, &funcAsVoidPtr);
-    (void)res;
-
-    // If C function pointer discriminators are type-diverse this cast will be
-    // an authenticate and resign operation.
-    *address = reinterpret_cast<T *>(funcAsVoidPtr);
-}
-
 #if TARGET_OS_IOS && !TARGET_OS_SIMULATOR
 namespace dyld3 {
     extern int compatFuncLookup(const char* name, void** address) __API_AVAILABLE(ios(13.0));
@@ -94,7 +81,7 @@
 #endif
 
 
-extern void* __ptrauth_dyld_address_auth gUseDyld3;
+extern bool gUseDyld3;
 
 
 // <rdar://problem/61161069> libdyld.dylib should use abort_with_payload() for asserts
@@ -118,9 +105,8 @@
         dyld3::halt(str);
     }
     else {
-        typedef void (*funcType)(const char* msg) __attribute__((__noreturn__));
-        static funcType __ptrauth_dyld_function_ptr p = NULL;
-        dyld_func_lookup_and_resign("__dyld_halt", &p);
+        void (*p)(const char* msg) __attribute__((__noreturn__));
+        _dyld_func_lookup("__dyld_halt", (void**)&p);
         p(str);
     }
     // halt() doesn't return, so we can't call _simple_sfree
@@ -214,11 +200,10 @@
  	typedef NSModule (*mcallback_t)(NSSymbol s, NSModule old, NSModule newhandler);
 	typedef void (*lcallback_t)(NSLinkEditErrors c, int errorNumber,
 								const char* fileName, const char* errorString);
-	typedef void (*funcType)(ucallback_t undefined, mcallback_t multiple, lcallback_t linkEdit);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_install_handlers", &p);
+	static void (*p)(ucallback_t undefined, mcallback_t multiple, lcallback_t linkEdit) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_install_handlers", (void**)&p);
 	mcallback_t m = handlers->multiple;
 	p(handlers->undefined, m, handlers->linkEdit);
 }
@@ -231,11 +216,10 @@
 		return dyld3::NSNameOfModule(module);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef const char* (*funcType)(NSModule module);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSNameOfModule", &p);
+    static const char*  (*p)(NSModule module) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSNameOfModule", (void**)&p);
 	return(p(module));
 } 
 
@@ -247,11 +231,10 @@
 		return dyld3::NSLibraryNameForModule(module);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef const char*  (*funcType)(NSModule module);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSLibraryNameForModule", &p);
+    static const char*  (*p)(NSModule module) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSLibraryNameForModule", (void**)&p);
 	return(p(module));
 }
 
@@ -263,11 +246,10 @@
 		return dyld3::NSIsSymbolNameDefined(symbolName);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef bool (*funcType)(const char* symbolName);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSIsSymbolNameDefined", &p);
+    static bool (*p)(const char* symbolName) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSIsSymbolNameDefined", (void**)&p);
 	return(p(symbolName));
 }
 
@@ -280,12 +262,11 @@
 		return dyld3::NSIsSymbolNameDefinedWithHint(symbolName, libraryNameHint);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef bool (*funcType)(const char* symbolName,
-                             const char* libraryNameHint);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSIsSymbolNameDefinedWithHint", &p);
+    static bool (*p)(const char* symbolName,
+			  const char* libraryNameHint) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSIsSymbolNameDefinedWithHint", (void**)&p);
 	return(p(symbolName, libraryNameHint));
 }
 
@@ -298,12 +279,11 @@
 		return dyld3::NSIsSymbolNameDefinedInImage(image, symbolName);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef bool (*funcType)(const struct mach_header *image,
-                             const char* symbolName);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSIsSymbolNameDefinedInImage", &p);
+    static bool (*p)(const struct mach_header *image,
+			  const char* symbolName) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSIsSymbolNameDefinedInImage", (void**)&p);
 	return(p(image, symbolName));
 }
 
@@ -315,11 +295,10 @@
 		return dyld3::NSLookupAndBindSymbol(symbolName);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef NSSymbol (*funcType)(const char* symbolName);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSLookupAndBindSymbol", &p);
+    static NSSymbol (*p)(const char* symbolName) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSLookupAndBindSymbol", (void**)&p);
 	return(p(symbolName));
 }
 
@@ -332,12 +311,11 @@
 		return dyld3::NSLookupAndBindSymbolWithHint(symbolName, libraryNameHint);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef NSSymbol (*funcType)(const char* symbolName,
-                                 const char* libraryNameHint);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSLookupAndBindSymbolWithHint", &p);
+    static NSSymbol (*p)(const char* symbolName,
+			 const char* libraryNameHint) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSLookupAndBindSymbolWithHint", (void**)&p);
 	return(p(symbolName, libraryNameHint));
 }
 
@@ -350,11 +328,10 @@
 		return dyld3::NSLookupSymbolInModule(module, symbolName);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef NSSymbol (*funcType)(NSModule module, const char* symbolName);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSLookupSymbolInModule", &p);
+    static NSSymbol (*p)(NSModule module, const char* symbolName) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSLookupSymbolInModule", (void**)&p);
 	return(p(module, symbolName));
 }
 
@@ -368,13 +345,12 @@
 		return dyld3::NSLookupSymbolInImage(image, symbolName, options);
 
  	DYLD_LOCK_THIS_BLOCK;
-    typedef NSSymbol (*funcType)(const struct mach_header *image,
-                                 const char* symbolName,
-                                 uint32_t options);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSLookupSymbolInImage", &p);
+    static NSSymbol (*p)(const struct mach_header *image,
+			 const char* symbolName,
+			 uint32_t options) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSLookupSymbolInImage", (void**)&p);
 	return(p(image, symbolName, options));
 }
 
@@ -386,11 +362,10 @@
 		return dyld3::NSNameOfSymbol(symbol);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef char * (*funcType)(NSSymbol symbol);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSNameOfSymbol",&p);
+    static char * (*p)(NSSymbol symbol) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSNameOfSymbol",(void**)&p);
 	return(p(symbol));
 }
 
@@ -402,11 +377,10 @@
 		return dyld3::NSAddressOfSymbol(symbol);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef void * (*funcType)(NSSymbol symbol);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSAddressOfSymbol", &p);
+    static void * (*p)(NSSymbol symbol) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSAddressOfSymbol", (void**)&p);
 	return(p(symbol));
 }
 
@@ -418,11 +392,10 @@
 		return dyld3::NSModuleForSymbol(symbol);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef NSModule (*funcType)(NSSymbol symbol);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSModuleForSymbol", &p);
+    static NSModule (*p)(NSSymbol symbol) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSModuleForSymbol", (void**)&p);
 	return(p(symbol));
 }
 
@@ -434,11 +407,10 @@
 		return dyld3::NSAddLibrary(pathName);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef bool (*funcType)(const char* pathName);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSAddLibrary", &p);
+    static bool (*p)(const char* pathName) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSAddLibrary", (void**)&p);
 	return(p(pathName));
 }
 
@@ -450,11 +422,10 @@
 		return dyld3::NSAddLibrary(pathName);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef bool (*funcType)(const char* pathName);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSAddLibraryWithSearching", &p);
+    static bool (*p)(const char* pathName) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSAddLibraryWithSearching", (void**)&p);
 	return(p(pathName));
 }
 
@@ -467,12 +438,11 @@
 		return dyld3::NSAddImage(image_name, options);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef const struct mach_header * (*funcType)(const char* image_name,
-                                                   uint32_t options);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSAddImage", &p);
+    static const struct mach_header * (*p)(const char* image_name,
+					   uint32_t options) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSAddImage", (void**)&p);
 	return(p(image_name, options));
 }
 #endif // DEPRECATED_APIS_SUPPORTED
@@ -758,11 +728,10 @@
 		return dyld3::NSCreateObjectFileImageFromFile(pathName, objectFileImage);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef NSObjectFileImageReturnCode (*funcType)(const char*, NSObjectFileImage*);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSCreateObjectFileImageFromFile", &p);
+    static NSObjectFileImageReturnCode (*p)(const char*, NSObjectFileImage*) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSCreateObjectFileImageFromFile", (void**)&p);
 	return p(pathName, objectFileImage);
 }
 
@@ -793,11 +762,10 @@
 		return dyld3::NSCreateObjectFileImageFromMemory(address, size, objectFileImage);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef NSObjectFileImageReturnCode (*funcType)(const void*, size_t, NSObjectFileImage*);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSCreateObjectFileImageFromMemory", &p);
+    static NSObjectFileImageReturnCode (*p)(const void*, size_t, NSObjectFileImage*) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSCreateObjectFileImageFromMemory", (void**)&p);
 	return p(address, size, objectFileImage);
 }
 
@@ -814,10 +782,10 @@
 NSObjectFileImage *objectFileImage)
 {
 	DYLD_LOCK_THIS_BLOCK;
-    typedef NSObjectFileImageReturnCode (*funcType)(const char*, NSObjectFileImage*) = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSCreateCoreFileImageFromFile", &p);
+    static NSObjectFileImageReturnCode (*p)(const char*, NSObjectFileImage*) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSCreateCoreFileImageFromFile", (void**)&p);
 	return p(pathName, objectFileImage);
 }
 #endif
@@ -830,11 +798,10 @@
 		return dyld3::NSDestroyObjectFileImage(objectFileImage);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef bool (*funcType)(NSObjectFileImage);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSDestroyObjectFileImage", &p);
+    static bool (*p)(NSObjectFileImage) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSDestroyObjectFileImage", (void**)&p);
 	return p(objectFileImage);
 }
 
@@ -849,11 +816,10 @@
 		return dyld3::NSLinkModule(objectFileImage, moduleName, options);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef NSModule (*funcType)(NSObjectFileImage, const char*, unsigned long);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSLinkModule", &p);
+    static NSModule (*p)(NSObjectFileImage, const char*, unsigned long) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSLinkModule", (void**)&p);
 		
 	return p(objectFileImage, moduleName, options);
 }
@@ -873,11 +839,10 @@
 		return dyld3::NSSymbolDefinitionCountInObjectFileImage(objectFileImage);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef uint32_t (*funcType)(NSObjectFileImage);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSSymbolDefinitionCountInObjectFileImage", &p);
+    static uint32_t (*p)(NSObjectFileImage) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSSymbolDefinitionCountInObjectFileImage", (void**)&p);
 		
 	return p(objectFileImage);
 }
@@ -897,11 +862,10 @@
 		return dyld3::NSSymbolDefinitionNameInObjectFileImage(objectFileImage, ordinal);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef const char*  (*funcType)(NSObjectFileImage, uint32_t);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSSymbolDefinitionNameInObjectFileImage", &p);
+    static const char*  (*p)(NSObjectFileImage, uint32_t) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSSymbolDefinitionNameInObjectFileImage", (void**)&p);
 		
 	return p(objectFileImage, ordinal);
 }
@@ -918,11 +882,10 @@
 		return dyld3::NSSymbolReferenceCountInObjectFileImage(objectFileImage);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef uint32_t (*funcType)(NSObjectFileImage);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSSymbolReferenceCountInObjectFileImage", &p);
+    static uint32_t (*p)(NSObjectFileImage) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSSymbolReferenceCountInObjectFileImage", (void**)&p);
 		
 	return p(objectFileImage);
 }
@@ -943,11 +906,10 @@
 		return dyld3::NSSymbolReferenceNameInObjectFileImage(objectFileImage, ordinal, tentative_definition);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef const char*  (*funcType)(NSObjectFileImage, uint32_t, bool*);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSSymbolReferenceNameInObjectFileImage", &p);
+    static const char*  (*p)(NSObjectFileImage, uint32_t, bool*) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSSymbolReferenceNameInObjectFileImage", (void**)&p);
 		
 	return p(objectFileImage, ordinal, tentative_definition);
 }
@@ -965,11 +927,10 @@
 		return dyld3::NSIsSymbolDefinedInObjectFileImage(objectFileImage, symbolName);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef bool (*funcType)(NSObjectFileImage, const char*);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSIsSymbolDefinedInObjectFileImage", &p);
+    static bool (*p)(NSObjectFileImage, const char*) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSIsSymbolDefinedInObjectFileImage", (void**)&p);
 		
 	return p(objectFileImage, symbolName);
 }
@@ -992,11 +953,10 @@
 		return dyld3::NSGetSectionDataInObjectFileImage(objectFileImage, segmentName, sectionName, size);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef void* (*funcType)(NSObjectFileImage, const char*, const char*, unsigned long*);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_NSGetSectionDataInObjectFileImage", &p);
+    static void* (*p)(NSObjectFileImage, const char*, const char*, unsigned long*) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_NSGetSectionDataInObjectFileImage", (void**)&p);
 		
 	return p(objectFileImage, segmentName, sectionName, size);
 }
@@ -1013,14 +973,13 @@
 		return dyld3::NSLinkEditError(c, errorNumber, fileName, errorString);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef void (*funcType)(NSLinkEditErrors *c,
-                             int *errorNumber,
-                             const char* *fileName,
-                             const char* *errorString);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_link_edit_error", &p);
+    static void (*p)(NSLinkEditErrors *c,
+		     int *errorNumber, 
+		     const char* *fileName,
+		     const char* *errorString) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_link_edit_error", (void**)&p);
 	if(p != NULL)
 	    p(c, errorNumber, fileName, errorString);
 }
@@ -1034,11 +993,10 @@
 		return dyld3::NSUnLinkModule(module, options);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef bool (*funcType)(NSModule module, uint32_t options);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_unlink_module", &p);
+    static bool (*p)(NSModule module, uint32_t options) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_unlink_module", (void**)&p);
 
 	return p(module, options);
 }
@@ -1075,11 +1033,10 @@
 		return dyld3::_NSGetExecutablePath(buf, bufsize);
 
 	DYLD_NO_LOCK_THIS_BLOCK;
-    typedef int (*funcType)(char *buf, uint32_t *bufsize);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld__NSGetExecutablePath", &p);
+    static int (*p)(char *buf, uint32_t *bufsize) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld__NSGetExecutablePath", (void**)&p);
 	return(p(buf, bufsize));
 }
 
@@ -1094,11 +1051,10 @@
 		return dyld3::_dyld_lookup_and_bind(symbol_name, address, module);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef void (*funcType)(const char*, void** , NSModule*);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_lookup_and_bind", &p);
+    static void (*p)(const char*, void** , NSModule*) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_lookup_and_bind", (void**)&p);
 	p(symbol_name, address, module);
 }
 
@@ -1110,11 +1066,10 @@
 NSModule* module)
 {
 	DYLD_LOCK_THIS_BLOCK;
-    typedef void (*funcType)(const char*, const char*, void**, NSModule*);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_lookup_and_bind_with_hint", &p);
+    static void (*p)(const char*, const char*, void**, NSModule*) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_lookup_and_bind_with_hint", (void**)&p);
 	p(symbol_name, library_name_hint, address, module);
 }
 
@@ -1126,10 +1081,10 @@
 NSModule* module)
 {
 	DYLD_LOCK_THIS_BLOCK;
-    typedef void (*funcType)(const char* , void**, NSModule*) = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_lookup_and_bind_objc", &p);
+    static void (*p)(const char* , void**, NSModule*) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_lookup_and_bind_objc", (void**)&p);
 	p(symbol_name, address, module);
 }
 #endif
@@ -1141,11 +1096,10 @@
 NSModule* module)
 {
 	DYLD_LOCK_THIS_BLOCK;
-    typedef void (*funcType)(const char*, void**, NSModule*);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_lookup_and_bind_fully", &p);
+    static void (*p)(const char*, void**, NSModule*) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_lookup_and_bind_fully", (void**)&p);
 	p(symbol_name, address, module);
 }
 
@@ -1154,11 +1108,10 @@
 const void* address)
 {
 	DYLD_LOCK_THIS_BLOCK;
-    typedef bool (*funcType)(const void*);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_bind_fully_image_containing_address", &p);
+    static bool (*p)(const void*) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_bind_fully_image_containing_address", (void**)&p);
 	return p(address);
 }
 #endif // DEPRECATED_APIS_SUPPORTED
@@ -1178,15 +1131,12 @@
 		return dyld3::_dyld_register_func_for_add_image(func);
 
 	DYLD_LOCK_THIS_BLOCK;
-	// Func must be a "void *" because dyld itself calls it. DriverKit
-	// libdyld.dylib uses diversified C function pointers but its dyld (the
-	// plain OS one) doesn't, so it must be resigned with 0 discriminator.
-	typedef void (*funcType)(void *func);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_register_func_for_add_image", &p);
-	p(reinterpret_cast<void *>(func));
+	typedef void (*callback_t)(const struct mach_header *mh, intptr_t vmaddr_slide);
+    static void (*p)(callback_t func) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_register_func_for_add_image", (void**)&p);
+	p(func);
 }
 
 /*
@@ -1202,15 +1152,12 @@
 		return dyld3::_dyld_register_func_for_remove_image(func);
 
 	DYLD_LOCK_THIS_BLOCK;
-	// Func must be a "void *" because dyld itself calls it. DriverKit
-	// libdyld.dylib uses diversified C function pointers but its dyld (the
-	// plain OS one) doesn't, so it must be resigned with 0 discriminator.
-	typedef void (*funcType)(void *func);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_register_func_for_remove_image", &p);
-	p(reinterpret_cast<void *>(func));
+	typedef void (*callback_t)(const struct mach_header *mh, intptr_t vmaddr_slide);
+    static void (*p)(callback_t func) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_register_func_for_remove_image", (void**)&p);
+	p(func);
 }
 
 #if OBSOLETE_DYLD_API
@@ -1225,14 +1172,11 @@
 void (*func)(NSModule module))
 {
 	DYLD_LOCK_THIS_BLOCK;
-	// Func must be a "void *" because dyld itself calls it. DriverKit
-	// libdyld.dylib uses diversified C function pointers but its dyld (the
-	// plain OS one) doesn't, so it must be resigned with 0 discriminator.
-	static void (*funcType)(void *func) = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_register_func_for_link_module", &p);
-	p(reinterpret_cast<void *>(func));
+    static void (*p)(void (*func)(NSModule module)) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_register_func_for_link_module", (void**)&p);
+	p(func);
 }
 
 /*
@@ -1244,14 +1188,11 @@
 void (*func)(NSModule module))
 {
 	DYLD_LOCK_THIS_BLOCK;
-	// Func must be a "void *" because dyld itself calls it. DriverKit
-	// libdyld.dylib uses diversified C function pointers but its dyld (the
-	// plain OS one) doesn't, so it must be resigned with 0 discriminator.
-	static void (*funcType)(void *func) = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_register_func_for_unlink_module", &p);
-	p(reinterpret_cast<void *>(func));
+    static void (*p)(void (*func)(NSModule module)) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_register_func_for_unlink_module", (void**)&p);
+	p(func);
 }
 
 /*
@@ -1263,14 +1204,12 @@
 void (*func)(NSModule oldmodule, NSModule newmodule))
 {
 	DYLD_LOCK_THIS_BLOCK;
-	// Func must be a "void *" because dyld itself calls it. DriverKit
-	// libdyld.dylib uses diversified C function pointers but its dyld (the
-	// plain OS one) doesn't, so it must be resigned with 0 discriminator.
-    typedef void (*funcType)(void *func) = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_register_func_for_replace_module", &p);
-	p(reinterpret_cast<void *>(func));
+    static void (*p)(void (*func)(NSModule oldmodule,
+				  NSModule newmodule)) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_register_func_for_replace_module", (void**)&p);
+	p(func);
 }
 
 
@@ -1286,12 +1225,12 @@
 unsigned long *size)
 {
 	DYLD_LOCK_THIS_BLOCK;
-    typedef void (*funcType)(NSModule module,
-                             void **objc_module,
-                             unsigned long *size) = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_get_objc_module_sect_for_module", &p);
+    static void (*p)(NSModule module,
+		     void **objc_module,
+		     unsigned long *size) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_get_objc_module_sect_for_module", (void**)&p);
 	p(module, objc_module, size);
 }
 
@@ -1313,11 +1252,10 @@
 		return dyld3::_dyld_image_count();
 
 	DYLD_NO_LOCK_THIS_BLOCK;
-    typedef uint32_t (*funcType)(void);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_image_count", &p);
+    static uint32_t (*p)(void) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_image_count", (void**)&p);
 	return(p());
 }
 
@@ -1328,11 +1266,10 @@
 		return dyld3::_dyld_get_image_header(image_index);
 
 	DYLD_NO_LOCK_THIS_BLOCK;
-    typedef struct mach_header * (*funcType)(uint32_t image_index);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_get_image_header", &p);
+    static struct mach_header * (*p)(uint32_t image_index) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_get_image_header", (void**)&p);
 	return(p(image_index));
 }
 
@@ -1343,11 +1280,10 @@
 		return dyld3::_dyld_get_image_vmaddr_slide(image_index);
 
 	DYLD_NO_LOCK_THIS_BLOCK;
-    typedef unsigned long (*funcType)(uint32_t image_index);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_get_image_vmaddr_slide", &p);
+    static unsigned long (*p)(uint32_t image_index) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_get_image_vmaddr_slide", (void**)&p);
 	return(p(image_index));
 }
 
@@ -1358,11 +1294,10 @@
 		return dyld3::_dyld_get_image_name(image_index);
 
 	DYLD_NO_LOCK_THIS_BLOCK;
-    typedef const char*  (*funcType)(uint32_t image_index);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_get_image_name", &p);
+    static const char*  (*p)(uint32_t image_index) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_get_image_name", (void**)&p);
 	return(p(image_index));
 }
 
@@ -1380,11 +1315,10 @@
         return dyld3::_dyld_get_prog_image_header();
 
     DYLD_LOCK_THIS_BLOCK;
-    typedef const struct mach_header * (*funcType)(void);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
+    static const struct mach_header * (*p)(void) = NULL;
 
     if(p == NULL)
-        dyld_func_lookup_and_resign("__dyld_get_prog_image_header", &p);
+        _dyld_func_lookup("__dyld_get_prog_image_header", (void**)&p);
     return p();
 }
 
@@ -1396,11 +1330,10 @@
 		return dyld3::_dyld_image_containing_address(address);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef bool (*funcType)(const void*);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_image_containing_address", &p);
+    static bool (*p)(const void*) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_image_containing_address", (void**)&p);
 	return(p(address));
 }
 
@@ -1412,33 +1345,30 @@
 		return dyld3::_dyld_get_image_header_containing_address(address);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef const struct mach_header * (*funcType)(const void*);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_get_image_header_containing_address", &p);
+    static const struct mach_header * (*p)(const void*) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_get_image_header_containing_address", (void**)&p);
 	return p(address);
 }
 
 bool _dyld_launched_prebound(void)
 {
 	DYLD_LOCK_THIS_BLOCK;
-    typedef bool (*funcType)(void);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_launched_prebound", &p);
+    static bool (*p)(void) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_launched_prebound", (void**)&p);
 	return(p());
 }
 
 bool _dyld_all_twolevel_modules_prebound(void)
 {
 	DYLD_LOCK_THIS_BLOCK;
-    typedef bool (*funcType)(void);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_all_twolevel_modules_prebound", &p);
+    static bool (*p)(void) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_all_twolevel_modules_prebound", (void**)&p);
 	return(p());
 }
 #endif // DEPRECATED_APIS_SUPPORTED
@@ -1537,26 +1467,23 @@
 	// leave until dyld's that might call this are rare
 }
 
-// FIXME: This is a mess. Why can't Driverkit have its own dyld?
-static int cxa_atexit_thunk(void (*func)(void *), void *arg, void *dso)
-{
-	// Func will have come from dyld and so be signed with 0 discriminator,
-	// resign it appropriately before passing to the real __cxa_atexit.
-	func = ptrauth_auth_and_resign(func, ptrauth_key_function_pointer, 0,
-	    ptrauth_key_function_pointer,
-	    ptrauth_function_pointer_type_discriminator(__typeof__(func)));
-	return __cxa_atexit(func, arg, dso);
-}
-
-template<typename FTy> static FTy *resign_for_dyld(FTy *func) {
-	return ptrauth_auth_and_resign(func, ptrauth_key_function_pointer,
-	    ptrauth_function_pointer_type_discriminator(__typeof__(func)),
-	    ptrauth_key_function_pointer, 0);
-}
-
 
 // the table passed to dyld containing thread helpers
-static dyld::LibSystemHelpers sHelpers = { 13 };
+static dyld::LibSystemHelpers sHelpers = { 13, &dyldGlobalLockAcquire, &dyldGlobalLockRelease,
+									&getPerThreadBufferFor_dlerror, &malloc, &free, &__cxa_atexit,
+									&shared_cache_missing, &shared_cache_out_of_date,
+									NULL, NULL,
+									&pthread_key_create, &pthread_setspecific,
+									&malloc_size,
+									&pthread_getspecific,
+									&__cxa_finalize,
+									address_of_start,
+									&hasPerThreadBufferFor_dlerror,
+									&isLaunchdOwned,
+									&vm_allocate,
+									&mmap,
+									&__cxa_finalize_ranges
+                                    };
 
 static const objc_opt::objc_opt_t* gObjCOpt = nullptr;
 //
@@ -1565,31 +1492,8 @@
 //
 extern "C" void tlv_initializer();
 void _dyld_initializer()
-{
-    sHelpers.acquireGlobalDyldLock = resign_for_dyld(&dyldGlobalLockAcquire);
-    sHelpers.releaseGlobalDyldLock = resign_for_dyld(&dyldGlobalLockRelease);
-    sHelpers.getThreadBufferFor_dlerror = resign_for_dyld(&getPerThreadBufferFor_dlerror);
-    sHelpers.malloc = resign_for_dyld(&malloc);
-    sHelpers.free = resign_for_dyld(&free);
-    sHelpers.cxa_atexit = resign_for_dyld(&cxa_atexit_thunk);
-    sHelpers.dyld_shared_cache_missing = resign_for_dyld(&shared_cache_missing);
-    sHelpers.dyld_shared_cache_out_of_date = resign_for_dyld(&shared_cache_out_of_date);
-    sHelpers.acquireDyldInitializerLock = NULL;
-    sHelpers.releaseDyldInitializerLock = NULL;
-    sHelpers.pthread_key_create = resign_for_dyld(&pthread_key_create);
-    sHelpers.pthread_setspecific = resign_for_dyld(&pthread_setspecific);
-    sHelpers.malloc_size = resign_for_dyld(&malloc_size);
-    sHelpers.pthread_getspecific = resign_for_dyld(&pthread_getspecific);
-    sHelpers.cxa_finalize = resign_for_dyld(&__cxa_finalize);
-    sHelpers.startGlueToCallExit = address_of_start;
-    sHelpers.hasPerThreadBufferFor_dlerror = resign_for_dyld(&hasPerThreadBufferFor_dlerror);
-    sHelpers.isLaunchdOwned = resign_for_dyld(&isLaunchdOwned);
-    sHelpers.vm_alloc = resign_for_dyld(&vm_allocate);
-    sHelpers.mmap = resign_for_dyld(&mmap);
-    sHelpers.cxa_finalize_ranges = resign_for_dyld(&__cxa_finalize_ranges);
-
-    typedef void (*funcType)(dyld::LibSystemHelpers*);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
+{	
+   void (*p)(dyld::LibSystemHelpers*);
 
     // Get the optimized objc pointer now that the cache is loaded
     const dyld_all_image_infos* allInfo = _dyld_get_all_image_infos();
@@ -1608,7 +1512,7 @@
 #endif
 	}
 	else {
-		dyld_func_lookup_and_resign("__dyld_register_thread_helpers", &p);
+		_dyld_func_lookup("__dyld_register_thread_helpers", (void**)&p);
 		if(p != NULL)
 			p(&sHelpers);
 	}
@@ -1624,11 +1528,10 @@
         result = dyld3::dladdr(addr, info);
     } else {
         DYLD_LOCK_THIS_BLOCK;
-        typedef int (*funcType)(const void* , Dl_info*);
-        static funcType __ptrauth_dyld_function_ptr p = NULL;
+        static int (*p)(const void* , Dl_info*) = NULL;
 
         if(p == NULL)
-            dyld_func_lookup_and_resign("__dyld_dladdr", &p);
+            _dyld_func_lookup("__dyld_dladdr", (void**)&p);
         result = p(addr, info);
     }
     timer.setData4(result);
@@ -1644,11 +1547,10 @@
 		return dyld3::dlerror();
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef char* (*funcType)();
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_dlerror", &p);
+    static char* (*p)() = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_dlerror", (void**)&p);
 	return(p());
 }
 
@@ -1662,11 +1564,10 @@
     }
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef int (*funcType)(void* handle);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_dlclose", &p);
+    static int (*p)(void* handle) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_dlclose", (void**)&p);
     result = p(handle);
     timer.setData4(result);
 	return result;
@@ -1685,11 +1586,10 @@
     // dlopen is special. locking is done inside dyld to allow initializer to run without lock
     DYLD_NO_LOCK_THIS_BLOCK;
 
-    typedef void* (*funcType)(const char* path, int, void*);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
+    static void* (*p)(const char* path, int, void*) = NULL;
 
     if(p == NULL)
-        dyld_func_lookup_and_resign("__dyld_dlopen_internal", &p);
+        _dyld_func_lookup("__dyld_dlopen_internal", (void**)&p);
     result = p(path, mode, callerAddress);
     // use asm block to prevent tail call optimization
     // this is needed because dlopen uses __builtin_return_address() and depends on this glue being in the frame chain
@@ -1737,11 +1637,10 @@
     }
 
     DYLD_LOCK_THIS_BLOCK;
-    typedef bool (*funcType)(const char* path, void* callerAddress);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
+    static bool (*p)(const char* path, void* callerAddress) = NULL;
 
     if(p == NULL)
-        dyld_func_lookup_and_resign("__dyld_dlopen_preflight_internal", &p);
+        _dyld_func_lookup("__dyld_dlopen_preflight_internal", (void**)&p);
     result = p(path, __builtin_return_address(0));
     timer.setData4(result);
     return result;
@@ -1759,11 +1658,10 @@
     }
 
     DYLD_LOCK_THIS_BLOCK;
-    typedef void* (*funcType)(void* handle, const char* symbol, void *callerAddress);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
+    static void* (*p)(void* handle, const char* symbol, void *callerAddress) = NULL;
 
     if(p == NULL)
-        dyld_func_lookup_and_resign("__dyld_dlsym_internal", &p);
+        _dyld_func_lookup("__dyld_dlsym_internal", (void**)&p);
     result = p(handle, symbol, __builtin_return_address(0));
     timer.setData4(result);
     return result;
@@ -1777,11 +1675,10 @@
 		return dyld3::_dyld_get_all_image_infos();
 
 	DYLD_NO_LOCK_THIS_BLOCK;
-    typedef struct dyld_all_image_infos* (*funcType)();
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_get_all_image_infos", &p);
+    static struct dyld_all_image_infos* (*p)() = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_get_all_image_infos", (void**)&p);
 	return p();
 }
 
@@ -1792,11 +1689,10 @@
 		return dyld3::_dyld_find_unwind_sections(addr, info);
 
 	DYLD_NO_LOCK_THIS_BLOCK;
-    typedef void* (*funcType)(void*, dyld_unwind_sections*);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_find_unwind_sections", &p);
+    static void* (*p)(void*, dyld_unwind_sections*) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_find_unwind_sections", (void**)&p);
 	return p(addr, info);
 }
 #endif
@@ -1807,11 +1703,10 @@
 void* _dyld_fast_stub_entry(void* loadercache, long lazyinfo)
 {
 	DYLD_NO_LOCK_THIS_BLOCK;
-    typedef void* (*funcType)(void*, long);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_fast_stub_entry", &p);
+    static void* (*p)(void*, long) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_fast_stub_entry", (void**)&p);
 	return p(loadercache, lazyinfo);
 }
 #endif
@@ -1823,11 +1718,10 @@
 		return dyld3::dyld_image_path_containing_address(addr);
 
 	DYLD_NO_LOCK_THIS_BLOCK;
-    typedef const char* (*funcType)(const void*);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_image_path_containing_address", &p);
+    static const char* (*p)(const void*) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_image_path_containing_address", (void**)&p);
 	return p(addr);
 }
 
@@ -1837,11 +1731,10 @@
 		return dyld3::dyld_image_header_containing_address(addr);
 
 	DYLD_NO_LOCK_THIS_BLOCK;
-    typedef const mach_header* (*funcType)(const void*);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_get_image_header_containing_address", &p);
+    static const mach_header* (*p)(const void*) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_get_image_header_containing_address", (void**)&p);
 	return p(addr);
 }
 
@@ -1852,11 +1745,10 @@
 		return dyld3::dyld_shared_cache_some_image_overridden();
 
 	DYLD_NO_LOCK_THIS_BLOCK;
-    typedef bool (*funcType)();
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_shared_cache_some_image_overridden", &p);
+    static bool (*p)() = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_shared_cache_some_image_overridden", (void**)&p);
 	return p();
 }
 
@@ -1866,11 +1758,10 @@
 		return dyld3::_dyld_get_shared_cache_uuid(uuid);
 
 	DYLD_NO_LOCK_THIS_BLOCK;
-    typedef bool (*funcType)(uuid_t);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_get_shared_cache_uuid", &p);
+    static bool (*p)(uuid_t) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_get_shared_cache_uuid", (void**)&p);
 	return p(uuid);
 }
 
@@ -1880,11 +1771,10 @@
 		return dyld3::_dyld_get_shared_cache_range(length);
 
 	DYLD_NO_LOCK_THIS_BLOCK;
-    typedef const void* (*funcType)(size_t*);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_get_shared_cache_range", &p);
+    static const void* (*p)(size_t*) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_get_shared_cache_range", (void**)&p);
 	return p(length);
 }
 
@@ -1948,11 +1838,10 @@
         return dyld3::_dyld_images_for_addresses(count, addresses, infos);
 
     DYLD_NO_LOCK_THIS_BLOCK;
-    typedef const void (*funcType)(unsigned, const void*[], struct dyld_image_uuid_offset[]);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
+    static const void (*p)(unsigned, const void*[], struct dyld_image_uuid_offset[]) = NULL;
 
     if(p == NULL)
-        dyld_func_lookup_and_resign("__dyld_images_for_addresses", &p);
+        _dyld_func_lookup("__dyld_images_for_addresses", (void**)&p);
     return p(count, addresses, infos);
 }
 
@@ -1962,11 +1851,10 @@
         return dyld3::_dyld_register_for_image_loads(func);
 
     DYLD_NO_LOCK_THIS_BLOCK;
-    typedef const void (*funcType)(void (*)(const mach_header* mh, const char* path, bool unloadable));
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
+    static const void (*p)(void (*)(const mach_header* mh, const char* path, bool unloadable)) = NULL;
 
     if(p == NULL)
-        dyld_func_lookup_and_resign("__dyld_register_for_image_loads", &p);
+        _dyld_func_lookup("__dyld_register_for_image_loads", (void**)&p);
     return p(func);
 }
 
@@ -1976,11 +1864,10 @@
         return dyld3::_dyld_register_for_bulk_image_loads(func);
 
     DYLD_NO_LOCK_THIS_BLOCK;
-    typedef const void (*funcType)(void (*)(unsigned imageCount, const mach_header* mhs[], const char* paths[]));
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
+    static const void (*p)(void (*)(unsigned imageCount, const mach_header* mhs[], const char* paths[])) = NULL;
 
     if(p == NULL)
-        dyld_func_lookup_and_resign("__dyld_register_for_bulk_image_loads", &p);
+        _dyld_func_lookup("__dyld_register_for_bulk_image_loads", (void**)&p);
     return p(func);
 }
 
@@ -1995,11 +1882,10 @@
 		return dyld3::dyld_process_is_restricted();
 
 	DYLD_NO_LOCK_THIS_BLOCK;
-    typedef bool (*funcType)();
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
+    static bool (*p)() = NULL;
 	
 	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_process_is_restricted", &p);
+	    _dyld_func_lookup("__dyld_process_is_restricted", (void**)&p);
 	return p();
 }
 
@@ -2009,11 +1895,10 @@
 		return dyld3::dyld_shared_cache_file_path();
 
 	DYLD_NO_LOCK_THIS_BLOCK;
-    typedef const char* (*funcType)();
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
+    static const char* (*p)() = NULL;
 	
 	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_shared_cache_file_path", &p);
+	    _dyld_func_lookup("__dyld_shared_cache_file_path", (void**)&p);
 	return p();
 }
 
@@ -2023,11 +1908,10 @@
 		return dyld3::dyld_has_inserted_or_interposing_libraries();
 
 	DYLD_NO_LOCK_THIS_BLOCK;
-    typedef bool (*funcType)();
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
+	static bool (*p)() = NULL;
 
 	if (p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_has_inserted_or_interposing_libraries", &p);
+	    _dyld_func_lookup("__dyld_has_inserted_or_interposing_libraries", (void**)&p);
 	return p();
 }
 
@@ -2044,11 +1928,10 @@
 		return dyld3::dyld_dynamic_interpose(mh, array, count);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef void (*funcType)(const struct mach_header* mh, const struct dyld_interpose_tuple array[], size_t count);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
+    static void (*p)(const struct mach_header* mh, const struct dyld_interpose_tuple array[], size_t count) = NULL;
 
 	if (p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_dynamic_interpose", &p);
+	    _dyld_func_lookup("__dyld_dynamic_interpose", (void**)&p);
 	p(mh, array, count);
 }
 
@@ -2073,11 +1956,10 @@
 		return dyld3::_dyld_fork_child();
 
 	DYLD_NO_LOCK_THIS_BLOCK;
-    typedef void (*funcType)();
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_fork_child", &p);
+    static void (*p)() = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_fork_child", (void**)&p);
 	return p();
 }
 
@@ -2221,11 +2103,10 @@
 		return dyld3::_dyld_is_memory_immutable(addr, length);
 
 	DYLD_NO_LOCK_THIS_BLOCK;
-    typedef bool (*funcType)(const void*, size_t);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_is_memory_immutable", &p);
+    static bool (*p)(const void*, size_t) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_is_memory_immutable", (void**)&p);
 	return p(addr, length);
 }
 
@@ -2238,11 +2119,10 @@
 		return dyld3::_dyld_objc_notify_register(mapped, init, unmapped);
 
 	DYLD_LOCK_THIS_BLOCK;
-    typedef bool (*funcType)(_dyld_objc_notify_mapped, _dyld_objc_notify_init, _dyld_objc_notify_unmapped);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
-
-	if(p == NULL)
-	    dyld_func_lookup_and_resign("__dyld_objc_notify_register", &p);
+    static bool (*p)(_dyld_objc_notify_mapped, _dyld_objc_notify_init, _dyld_objc_notify_unmapped) = NULL;
+
+	if(p == NULL)
+	    _dyld_func_lookup("__dyld_objc_notify_register", (void**)&p);
 	p(mapped, init, unmapped);
 }
 
@@ -2285,12 +2165,11 @@
     if ( gUseDyld3 )
         return dyld3::_dyld_register_driverkit_main(mainFunc);
 
-    typedef bool (*funcType)(void *);
-    static funcType __ptrauth_dyld_function_ptr p = NULL;
+    static bool (*p)(void (*mainFunc)(void)) = NULL;
 
     if(p == NULL)
-        dyld_func_lookup_and_resign("__dyld_register_driverkit_main", &p);
-    p(reinterpret_cast<void *>(mainFunc));
+        _dyld_func_lookup("__dyld_register_driverkit_main", (void**)&p);
+   p(mainFunc);
 }
 
 // This is populated in the shared cache builder, so that the ranges are protected by __DATA_CONST