UnCaughtException Handler: Decode Inverse Character

Question

I am trying to get a backward character like Xcode list as below

*** First throw call stack:
(
    0   CoreFoundation                      0x018865e4 __exceptionPreprocess + 180
    1   libobjc.A.dylib                     0x016098b6 objc_exception_throw + 44
    2   CoreFoundation                      0x01923903 -[NSObject(NSObject) doesNotRecognizeSelector:] + 275
    3   CoreFoundation                      0x0187690b ___forwarding___ + 1019
    4   CoreFoundation                      0x018764ee _CF_forwarding_prep_0 + 14
    5   Foundation                          0x0124036c __NSFireDelayedPerform + 372
    6   CoreFoundation                      0x01844c46 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 22
    7   CoreFoundation                      0x0184462d __CFRunLoopDoTimer + 1181
    8   CoreFoundation                      0x0182c698 __CFRunLoopRun + 1816
    9   CoreFoundation                      0x0182bb33 CFRunLoopRunSpecific + 467
    10  CoreFoundation                      0x0182b94b CFRunLoopRunInMode + 123
    11  GraphicsServices                    0x02c249d7 GSEventRunModal + 192
    12  GraphicsServices                    0x02c247fe GSEventRun + 104
    13  UIKit                               0x0037c94b UIApplicationMain + 1225
    14  CrashHandler                        0x000088ad main + 141
    15  libdyld.dylib                       0x06244725 start + 0
    16  ???                                 0x00000001 0x0 + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException

I am trying to extract a character from an NSException as shown below. and less information is available only.

-(void)handleException:(NSException*)exception
{

    [exception callStackSymbols]//I've written this into file.

}

I have an output as shown below

*** First throw call stack: (
0   CoreFoundation                      0x326bd2bb <redacted> + 186
1   libobjc.A.dylib                     0x3a33b97f objc_exception_throw + 30
2   CoreFoundation                      0x326c0e07 <redacted> + 170
3   CoreFoundation                      0x326bf531 <redacted> + 392
4   CoreFoundation                      0x32616f68 _CF_forwarding_prep_0 + 24
5   Foundation                          0x32fcb277 <redacted> + 450
6   CoreFoundation                      0x326925df <redacted> + 14
7   CoreFoundation                      0x32692291 <redacted> + 272
8   CoreFoundation                      0x32690f01 <redacted> + 1232
9   CoreFoundation                      0x32603ebd CFRunLoopRunSpecific + 356
10  CoreFoundation                      0x32603d49 CFRunLoopRunInMode + 104
11  GraphicsServices                    0x361b62eb GSEventRunModal + 74
12  UIKit                               0x34519301 UIApplicationMain + 1120
13  CrashHandler                        0x0007f421 main + 116
14  libdyld.dylib                       0x3a772b20 <redacted> + 0
)

How to decode a character <redacted>?

Link and understanding:

I refer to SO post1 , SO post2 , but it needs a file dSYM, and we have for manual decoding, like testflight. Without dSYM file, how to do it?

Answer 1

Symbolization is the process of translating a memory address into a symbol containing all or some of the following elements:

• class name
• method name
• file name
• line number

, , class name method name. file name line number.

dSYM , . . .

<redacted> . , class name / method name , - iOS. : https://devforums.apple.com/thread/171264 , iOS- iOS , , .

Xcode iOS Xcode, . , , , iOS, SDK, - .

Xcode symbolciatecrash.pl script, Xcode .

, Xcode script, , , .

atos , , , . Foundation, CoreFoundation, UIKit. . StackOverflow , atos .

Answer 2

dSYM. , .

- , pro;) , , .