Decompilation Failure: NotImplementedError #5819
Description
Description
Angr fails to decompile the binary.
File "/Users/tedan/.pyenv/versions/3.10.18/bin/angr", line 7, in <module>
sys.exit(main())
File "/Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/angr/__main__.py", line 178, in main
args.func(args)
File "/Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/angr/__main__.py", line 79, in decompile
decompilation = decompile_functions(
File "/Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/angr/analyses/decompiler/utils.py", line 1043, in decompile_functions
proj.analyses.CompleteCallingConventions(recover_variables=True, analyze_callsites=True)
File "/Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/angr/analyses/analysis.py", line 266, in __call__
r = w(*args, **kwargs)
File "/Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/angr/analyses/analysis.py", line 251, in wrapper
oself.__init__(*args, **kwargs)
File "/Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/angr/analyses/complete_calling_conventions.py", line 126, in __init__
self.work()
File "/Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/angr/analyses/complete_calling_conventions.py", line 212, in work
cc, proto, proto_libname, proto_guessed, _ = self._analyze_core(func_addr)
File "/Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/angr/analyses/complete_calling_conventions.py", line 399, in _analyze_core
cc_analysis = self.project.analyses[CallingConventionAnalysis].prep(kb=self.kb)(
File "/Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/angr/analyses/analysis.py", line 251, in wrapper
oself.__init__(*args, **kwargs)
File "/Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/angr/analyses/calling_convention/calling_convention.py", line 146, in __init__
self._analyze()
File "/Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/angr/analyses/calling_convention/calling_convention.py", line 253, in _analyze
facts = self.project.analyses.FunctionFactCollector(self._function, kb=self.kb)
File "/Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/angr/analyses/analysis.py", line 266, in __call__
r = w(*args, **kwargs)
File "/Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/angr/analyses/analysis.py", line 251, in wrapper
oself.__init__(*args, **kwargs)
File "/Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/angr/analyses/calling_convention/fact_collector.py", line 253, in __init__
self._analyze()
File "/Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/angr/analyses/calling_convention/fact_collector.py", line 259, in _analyze
end_states = self._analyze_startpoint()
File "/Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/angr/analyses/calling_convention/fact_collector.py", line 301, in _analyze_startpoint
self._handle_function(state, node)
File "/Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/angr/analyses/calling_convention/fact_collector.py", line 351, in _handle_function
arg_locs = func.calling_convention.arg_locs(func.prototype)
File "/Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/angr/calling_conventions.py", line 879, in arg_locs
session = self.arg_session(prototype.returnty)
File "/Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/angr/calling_conventions.py", line 728, in arg_session
if self.return_in_implicit_outparam(ret_ty):
File "/Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/angr/calling_conventions.py", line 1677, in return_in_implicit_outparam
return isinstance(self.return_val(ty), SimReferenceArgument)
File "/Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/angr/calling_conventions.py", line 1663, in return_val
raise NotImplementedError("Bug. Report to @rhelmot")
NotImplementedError: Bug. Report to @rhelmot
Steps to reproduce the bug
Environment
angr environment report
Date: 2025-11-21 11:32:39.561048
!!! running in global environment. Are you sure? !!!
Platform: macosx-15.6-arm64
Python version: 3.10.18 (main, Aug 15 2025, 16:08:18) [Clang 17.0.0 (clang-1700.0.13.5)]
######## angr #########
Python found it in /Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/angr/init.py
Pip version 9.2.184
Couldn't find git info
######## archinfo #########
Python found it in /Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/archinfo/init.py
Pip version 9.2.184
Couldn't find git info
######## claripy #########
Python found it in /Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/claripy/init.py
Pip version 9.2.184
Couldn't find git info
######## cle #########
Python found it in /Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/cle/init.py
Pip version 9.2.184
Couldn't find git info
######## pypcode #########
Python found it in /Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/pypcode/init.py
Pip version 3.3.0
Couldn't find git info
######## pyvex #########
Python found it in /Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/pyvex/init.py
Pip version 9.2.184
Couldn't find git info
######## unicorn #########
Python found it in /Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/unicorn/init.py
Pip version 2.1.2
Couldn't find git info
######## z3 #########
Python found it in /Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/z3/init.py
Pip version 4.13.0.0
Couldn't find git info
######### Native Module Info ##########
angr: <CDLL '/Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/angr/unicornlib.dylib', handle 6ffffd90 at 0x10e2464d0>
pyvex: <cffi.api._make_ffi_library..FFILibrary object at 0x1097afca0>
unicorn: imported but path finding raised a <class 'AttributeError'>: module 'unicorn.unicorn' has no attribute '_uc'
z3: <CDLL '/Users/tedan/.pyenv/versions/3.10.18/lib/python3.10/site-packages/z3/lib/libz3.dylib', handle 6fffd670 at 0x109408f40>
Additional context
No response