对继承UIViewController的类进行alloc init会报错. 对继承NSObject的类进行初始化alloc init没问题

[ljy0jy]

   result3 = objc.msg_send("NewVcViewController", "alloc")
    NewVcViewController = objc.msg_send(result3,"init")

<<NewVcViewController.h>>
@interface NewVcViewController : UIViewController
-(int)simpleTest:(int)a add:(int)b;

+(int)simpleTest_class:(int)a add:(int)b;
@EnD

<<NewVcViewController.m>>
#import "NewVcViewController.h"

@interface NewVcViewController ()

@EnD

@implementation NewVcViewController

• (void)viewDidLoad {
  [super viewDidLoad];
  // Do any additional setup after loading the view.
  }

-(int)simpleTest:(int)a add:(int)b{
return a+b;
}
+(int)simpleTest_class:(int)a add:(int)b {
return a+b;
}

Traceback (most recent call last):
File "/Users/new/Documents/pythonProject/iosRe/.venv/lib/python3.12/site-packages/chomper/core.py", line 207, in _start_emulate
self.uc.emu_start(address, stop_addr)
File "/Users/new/Documents/pythonProject/iosRe/.venv/lib/python3.12/site-packages/unicorn/unicorn_py3/unicorn.py", line 642, in emu_start
raise UcError(status)
unicorn.unicorn_py3.unicorn.UcError: Invalid memory fetch (UC_ERR_FETCH_UNMAPPED)

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "/Users/new/Documents/learn/iOS逆向/chomper_code/chomper/examples/ios_te.py", line 62, in
main()
File "/Users/new/Documents/learn/iOS逆向/chomper_code/chomper/examples/ios_te.py", line 51, in main
NewVcViewController = objc.msg_send(result3,"init")
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/new/Documents/pythonProject/iosRe/.venv/lib/python3.12/site-packages/chomper/objc.py", line 55, in msg_send
return self.emu.call_symbol("_objc_msgSend", receiver, sel, *new_args)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/new/Documents/pythonProject/iosRe/.venv/lib/python3.12/site-packages/chomper/core.py", line 723, in call_symbol
return self._start_emulate(address, *args)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/new/Documents/pythonProject/iosRe/.venv/lib/python3.12/site-packages/chomper/core.py", line 210, in _start_emulate
self.crash("Unknown reason", exc=e)
File "/Users/new/Documents/pythonProject/iosRe/.venv/lib/python3.12/site-packages/chomper/core.py", line 355, in crash
raise EmulatorCrashedException(
chomper.exceptions.EmulatorCrashedException: Unknown reason at libcorecrypto.dylib!0x1c426a4d8
nanobind: leaked 22 instances!

[sledgeh4w]

chomper 主要用来模拟执行加解密相关的程序，并没有支持所有的 OC 类，尤其是像这种 UI 相关的类。