ViewControllers exclusion

[uros-mil]

After starting obfuscated project we have a lot of crashes related to ViewController classes (e.g. reference in XIB).

In console log we see symbol which caused the crash. After finding that symbol in "symbols.h" we exclude associated class, as described in section "Undefined symbols" of your README.md.

By repeating this process we manage to get app work properly BUT most of our ViewControllers are now excluded. This means that level of protection is now much lower.

Is there a way to fix problematic symbols without excluding classes?

[tgrf]

You can exclude only separate symbols with -i <symbol> instead of excluding whole classes with -F <class>. Does it help?

[uros-mil]

We are using that as well.

But in ViewController crashes symbol (shown in console) is directly associated to class Name (in symbols.h).

[marcinkiewiczblazej]

Did you try -X <directory> option? This should replace symbols inside XIB and Storyboard files.

[uros-mil]

I just rerun obfuscation with -X <directory> and result is same.

App crashed on symbol w7G, which is associated to class name of our ViewController.

Crash log is below:

*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Could not load NIB in bundle: 'NSBundle </Users/urosmil/Library/Developer/CoreSimulator/Devices/B31C711C-EE12-4FEC-BC32-43DAA7529411/data/Containers/Bundle/Application/60637756-D8EF-4590-BC11-F5E0B2FB73D2/THE_APP_NAME.app> (loaded)' with name 'w7G''
*** First throw call stack:
(
    0   CoreFoundation                      0x00000001081a2c65 __exceptionPreprocess + 165
    1   libobjc.A.dylib                     0x0000000107e3bbb7 objc_exception_throw + 45
    2   CoreFoundation                      0x00000001081a2b9d +[NSException raise:format:] + 205
    3   UIKit                               0x00000001069a1131 -[UINib instantiateWithOwner:options:] + 552
    4   UIKit                               0x00000001067f96d8 -[UIViewController _loadViewFromNibNamed:bundle:] + 242
    5   UIKit                               0x00000001067f9cc8 -[UIViewController loadView] + 109
    6   UIKit                               0x00000001067f9f39 -[UIViewController loadViewIfRequired] + 75
    7   UIKit                               0x00000001067fa3ce -[UIViewController view] + 27
    8   UIKit                               0x000000010681f257 -[UINavigationController _startCustomTransition:] + 633
    9   UIKit                               0x000000010682b37f -[UINavigationController _startDeferredTransitionIfNeeded:] + 386
    10  UIKit                               0x000000010682bece -[UINavigationController __viewWillLayoutSubviews] + 43
    11  UIKit                               0x00000001069766d5 -[UILayoutContainerView layoutSubviews] + 202
    12  UIKit                               0x00000001067499eb -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 536
    13  QuartzCore                          0x0000000106038ed2 -[CALayer layoutSublayers] + 146
    14  QuartzCore                          0x000000010602d6e6 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 380
    15  QuartzCore                          0x000000010602d556 _ZN2CA5Layer28layout_and_display_if_neededEPNS_11TransactionE + 24
    16  QuartzCore                          0x0000000105f9986e _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 242
    17  QuartzCore                          0x0000000105f9aa22 _ZN2CA11Transaction6commitEv + 462
    18  QuartzCore                          0x0000000105f9b0d3 _ZN2CA11Transaction17observer_callbackEP19__CFRunLoopObservermPv + 89
    19  CoreFoundation                      0x00000001080d5ca7 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 23
    20  CoreFoundation                      0x00000001080d5c00 __CFRunLoopDoObservers + 368
    21  CoreFoundation                      0x00000001080cba33 __CFRunLoopRun + 1123
    22  CoreFoundation                      0x00000001080cb366 CFRunLoopRunSpecific + 470
    23  GraphicsServices                    0x000000010c3bfa3e GSEventRunModal + 161
    24  UIKit                               0x00000001066c98c0 UIApplicationMain + 1282
    25  PasswordBoss                        0x00000001048cdc17 main + 151
    26  libdyld.dylib                       0x00000001089ca145 start + 1
    27  ???                                 0x0000000000000001 0x0 + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException

[marcinkiewiczblazej]

How do you load your ViewController?

[uros-mil]

There is macro for this:

#define PUSH_VC(Class)    [self.navigationController pushViewController:[[Class alloc] initWithNibName:NSStringFromClass([Class class]) bundle:nil] animated:YES]

And it's used in following way:

PUSH_VC(ClassName)

[uros-mil]

Guys, do you have any new idea about this issue?

[jakublipinski]

We are not able to reproduce it. Could you please isolate the issue and attach the project that we can use to replicate it?