Trying to extract any dylib from iOS 17 dsc results in error in objc_fixer.py.
21C62__iPhone16,2> dyldex -e JavaScriptCore dyld_shared_cache_arm64e
Extracting /System/Library/Frameworks/JavaScriptCore.framework/JavaScriptCore
21:26:33:609 [ WARNING ] objc_fixer.py:503 : Unknown objc opt version: 4, but continuing on.
ObjC Fixer >> Processing Classes :: [-] 21:26:33:610 [ ERROR ] objc_fixer.py:1223 : Small method list at 0x186c4e8c1, has an entsize that doesn't match the size of objc_method_small_t
Traceback (most recent call last):
File "/opt/homebrew/bin/dyldex", line 277, in <module>
main()
File "/opt/homebrew/bin/dyldex", line 272, in main
_extractImage(args.dyld_path, dyldCtx, imageMap[targetPaths[0]], outputPath)
File "/opt/homebrew/bin/dyldex", line 138, in _extractImage
objc_fixer.fixObjC(extractionCtx)
File "/opt/homebrew/lib/python3.11/site-packages/DyldExtractor/converter/objc_fixer.py", line 1519, in fixObjC
_ObjCFixer(extractionCtx).run()
File "/opt/homebrew/lib/python3.11/site-packages/DyldExtractor/converter/objc_fixer.py", line 447, in run
self._processSections()
File "/opt/homebrew/lib/python3.11/site-packages/DyldExtractor/converter/objc_fixer.py", line 634, in _processSections
if self._processClass(classAddr)[1]:
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/homebrew/lib/python3.11/site-packages/DyldExtractor/converter/objc_fixer.py", line 850, in _processClass
classDef.isa, needsFutureIsa = self._processClass(classDef.isa)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/homebrew/lib/python3.11/site-packages/DyldExtractor/converter/objc_fixer.py", line 850, in _processClass
classDef.isa, needsFutureIsa = self._processClass(classDef.isa)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/homebrew/lib/python3.11/site-packages/DyldExtractor/converter/objc_fixer.py", line 855, in _processClass
classDef.superclass, needsFutureSuper = self._processClass(
^^^^^^^^^^^^^^^^^^^
File "/opt/homebrew/lib/python3.11/site-packages/DyldExtractor/converter/objc_fixer.py", line 867, in _processClass
classDef.data = self._processClassData(
^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/homebrew/lib/python3.11/site-packages/DyldExtractor/converter/objc_fixer.py", line 929, in _processClassData
classDataDef.baseProtocols = self._processProtocolList(
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/homebrew/lib/python3.11/site-packages/DyldExtractor/converter/objc_fixer.py", line 1034, in _processProtocolList
newProtoAddr = self._processProtocol(protoAddr)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/homebrew/lib/python3.11/site-packages/DyldExtractor/converter/objc_fixer.py", line 1058, in _processProtocol
protoDef = self._slider.slideStruct(protoAddr, objc_protocol_t)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/homebrew/lib/python3.11/site-packages/DyldExtractor/converter/slide_info.py", line 412, in slideStruct
structOff, context = self._dyldCtx.convertAddr(address)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/homebrew/lib/python3.11/site-packages/DyldExtractor/cache_context.py", line 34, in convertAddr
if vmaddr >= lowBound and vmaddr < highBound:
^^^^^^^^^^^^^^^^^^
TypeError: '>=' not supported between instances of 'NoneType' and 'int'
To Reproduce
iOS version 17.2
DYLD target device and identifier: iPhone 15 Pro Max 16,2
Terminal command to reproduce.
dyldex -e JavaScriptCore dyld_shared_cache_arm64e
Describe the bug
Trying to extract any dylib from iOS 17 dsc results in error in
objc_fixer.py.To Reproduce
Additional context