iOS崩溃日志读取

我正在开发一个使用外部附件的应用程序，该应用程序在某个时候崩溃。最难调试的是应用程序崩溃，设备无法连接到Xcode

我得到的碰撞日志不是象征性的，我也没有把它说得更清楚

有谁能告诉我所附的崩溃日志中我的代码有什么问题吗

Incident Identifier: 9BB6134A-68AF-4D88-9DF4-E1AB5F00F429
CrashReporter Key:   7c5ffd5961e66395d76785cd412baf0761515cbb
Hardware Model:      iPad5,4
Process:             reFlash [666]
Path:                /private/var/containers/Bundle/Application/4E98396D-5D6B-4FF1-8992-389A73E4A17D/reFlash.app/reFlash
Identifier:          com.softescu.reflash
Version:             1 (1.06)
Code Type:           ARM-64 (Native)
Role:                Foreground
Parent Process:      launchd [1]
Coalition:           com.softescu.reflash [663]


Date/Time:           2017-05-17 17:06:26.2257 +0300
Launch Time:         2017-05-17 17:05:51.8520 +0300
OS Version:          iPhone OS 10.2.1 (14D27)
Report Version:      104

Exception Type:  EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note:  EXC_CORPSE_NOTIFY
Triggered by Thread:  3

Application Specific Information:
abort() called

Filtered syslog:
None found

Last Exception Backtrace:
0   CoreFoundation                  0x18a2451b8 __exceptionPreprocess + 124
1   libobjc.A.dylib                 0x188c7c55c objc_exception_throw + 56
2   CoreFoundation                  0x18a245100 +[NSException raise:format:] + 116
3   CoreFoundation                  0x18a13fd90 -[__NSCFString substringWithRange:] + 168
4   reFlash                         0x1000a3d10 0x10006c000 + 228624
5   reFlash                         0x1000a3224 0x10006c000 + 225828
6   reFlash                         0x100085448 0x10006c000 + 103496
7   reFlash                         0x10008914c 0x10006c000 + 119116
8   reFlash                         0x1000cc41c 0x10006c000 + 394268
9   reFlash                         0x1000cb704 0x10006c000 + 390916
10  ExternalAccessory               0x1979f5ff8 -[EAInputStream _streamEventTrigger] + 504
11  CoreFoundation                  0x18a1f2b5c __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 24
12  CoreFoundation                  0x18a1f24a4 __CFRunLoopDoSources0 + 524
13  CoreFoundation                  0x18a1f00a4 __CFRunLoopRun + 804
14  CoreFoundation                  0x18a11e2b8 CFRunLoopRunSpecific + 444
15  Foundation                      0x18ac5b26c -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 304
16  Foundation                      0x18acafaa0 -[NSRunLoop(NSRunLoop) run] + 88
17  reFlash                         0x100088d88 0x10006c000 + 118152
18  Foundation                      0x18ad58e68 __NSThread__start__ + 1024
19  libsystem_pthread.dylib         0x1892d9850 _pthread_body + 240
20  libsystem_pthread.dylib         0x1892d9760 _pthread_start + 284
21  libsystem_pthread.dylib         0x1892d6d94 thread_start + 4


Thread 0 name:  Dispatch queue: com.apple.main-thread
Thread 0:
0   libsystem_kernel.dylib          0x00000001891f5188 mach_msg_trap + 8
1   libsystem_kernel.dylib          0x00000001891f4ff8 mach_msg + 72
2   CoreFoundation                  0x000000018a1f25d0 __CFRunLoopServiceMachPort + 192
3   CoreFoundation                  0x000000018a1f01ec __CFRunLoopRun + 1132
4   CoreFoundation                  0x000000018a11e2b8 CFRunLoopRunSpecific + 444
5   GraphicsServices                0x000000018bbd2198 GSEventRunModal + 180
6   UIKit                           0x000000019015e7fc -[UIApplication _run] + 684
7   UIKit                           0x0000000190159534 UIApplicationMain + 208
8   reFlash                         0x000000010009f4c8 0x10006c000 + 210120
9   libdyld.dylib                   0x00000001891015b8 start + 4

Thread 1 name:  com.apple.uikit.eventfetch-thread
Thread 1:
0   libsystem_kernel.dylib          0x00000001891f5188 mach_msg_trap + 8
1   libsystem_kernel.dylib          0x00000001891f4ff8 mach_msg + 72
2   CoreFoundation                  0x000000018a1f25d0 __CFRunLoopServiceMachPort + 192
3   CoreFoundation                  0x000000018a1f01ec __CFRunLoopRun + 1132
4   CoreFoundation                  0x000000018a11e2b8 CFRunLoopRunSpecific + 444
5   Foundation                      0x000000018ac5b26c -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 304
6   Foundation                      0x000000018ac7bdd0 -[NSRunLoop(NSRunLoop) runUntilDate:] + 96
7   UIKit                           0x0000000190ad2c38 -[UIEventFetcher threadMain] + 136
8   Foundation                      0x000000018ad58e68 __NSThread__start__ + 1024
9   libsystem_pthread.dylib         0x00000001892d9850 _pthread_body + 240
10  libsystem_pthread.dylib         0x00000001892d9760 _pthread_body + 0
11  libsystem_pthread.dylib         0x00000001892d6d94 thread_start + 4

Thread 2 name:  GAIThread
Thread 2:
0   libsystem_kernel.dylib          0x00000001891f5188 mach_msg_trap + 8
1   libsystem_kernel.dylib          0x00000001891f4ff8 mach_msg + 72
2   CoreFoundation                  0x000000018a1f25d0 __CFRunLoopServiceMachPort + 192
3   CoreFoundation                  0x000000018a1f01ec __CFRunLoopRun + 1132
4   CoreFoundation                  0x000000018a11e2b8 CFRunLoopRunSpecific + 444
5   Foundation                      0x000000018ac5b26c -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 304
6   Foundation                      0x000000018acafaa0 -[NSRunLoop(NSRunLoop) run] + 88
7   reFlash                         0x00000001000afe0c 0x10006c000 + 278028
8   Foundation                      0x000000018ad58e68 __NSThread__start__ + 1024
9   libsystem_pthread.dylib         0x00000001892d9850 _pthread_body + 240
10  libsystem_pthread.dylib         0x00000001892d9760 _pthread_body + 0
11  libsystem_pthread.dylib         0x00000001892d6d94 thread_start + 4

Thread 3 Crashed:
0   libsystem_kernel.dylib          0x0000000189213014 __pthread_kill + 8
1   libsystem_pthread.dylib         0x00000001892db450 pthread_kill + 112
2   libsystem_c.dylib               0x0000000189187400 abort + 140
3   libc++abi.dylib                 0x0000000188c512d4 __cxa_bad_cast + 0
4   libc++abi.dylib                 0x0000000188c6b688 std::__terminate(void (*)()) + 44
5   libc++abi.dylib                 0x0000000188c6b234 __cxa_rethrow + 144
6   libobjc.A.dylib                 0x0000000188c7c71c objc_exception_rethrow + 44
7   CoreFoundation                  0x000000018a11e32c CFRunLoopRunSpecific + 560
8   Foundation                      0x000000018ac5b26c -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 304
9   Foundation                      0x000000018acafaa0 -[NSRunLoop(NSRunLoop) run] + 88
10  reFlash                         0x0000000100088d88 0x10006c000 + 118152
11  Foundation                      0x000000018ad58e68 __NSThread__start__ + 1024
12  libsystem_pthread.dylib         0x00000001892d9850 _pthread_body + 240
13  libsystem_pthread.dylib         0x00000001892d9760 _pthread_body + 0
14  libsystem_pthread.dylib         0x00000001892d6d94 thread_start + 4

Thread 4 name:  com.apple.CFSocket.private
Thread 4:
0   libsystem_kernel.dylib          0x000000018921323c __select + 8
1   CoreFoundation                  0x000000018a1f9468 __CFSocketManager + 640
2   libsystem_pthread.dylib         0x00000001892d9850 _pthread_body + 240
3   libsystem_pthread.dylib         0x00000001892d9760 _pthread_body + 0
4   libsystem_pthread.dylib         0x00000001892d6d94 thread_start + 4

Thread 5 name:  com.apple.NSURLConnectionLoader
Thread 5:
0   libsystem_kernel.dylib          0x00000001891f5188 mach_msg_trap + 8
1   libsystem_kernel.dylib          0x00000001891f4ff8 mach_msg + 72
2   CoreFoundation                  0x000000018a1f25d0 __CFRunLoopServiceMachPort + 192
3   CoreFoundation                  0x000000018a1f01ec __CFRunLoopRun + 1132
4   CoreFoundation                  0x000000018a11e2b8 CFRunLoopRunSpecific + 444
5   CFNetwork                       0x000000018a923a70 +[NSURLConnection(Loader) _resourceLoadLoop:] + 336
6   Foundation                      0x000000018ad58e68 __NSThread__start__ + 1024
7   libsystem_pthread.dylib         0x00000001892d9850 _pthread_body + 240
8   libsystem_pthread.dylib         0x00000001892d9760 _pthread_body + 0
9   libsystem_pthread.dylib         0x00000001892d6d94 thread_start + 4

Thread 6:
0   libsystem_pthread.dylib         0x00000001892d6d88 start_wqthread + 0

Thread 7:
0   libsystem_pthread.dylib         0x00000001892d6d88 start_wqthread + 0

Thread 8:
0   libsystem_pthread.dylib         0x00000001892d6d88 start_wqthread + 0

Thread 9:
0   libsystem_pthread.dylib         0x00000001892d6d88 start_wqthread + 0

Thread 3 crashed with ARM Thread State (64-bit):
    x0: 0x0000000000000000   x1: 0x0000000000000000   x2: 0x0000000000000000   x3: 0x00000001700fb4b1
    x4: 0x0000000188c6f963   x5: 0x000000016e292ab0   x6: 0x000000000000006e   x7: 0x0000000000000340
    x8: 0x0000000008000000   x9: 0x0000000004000000  x10: 0x0000000000000031  x11: 0xffffffffffffffff
   x12: 0x000000018919e772  x13: 0x0000000000000000  x14: 0x0000030000000300  x15: 0x0000000000000000
   x16: 0x0000000000000148  x17: 0x0000000188c96d54  x18: 0x0000000000000000  x19: 0x0000000000000006
   x20: 0x000000016e293000  x21: 0x000000016e292ab0  x22: 0x00000001af2bcbb8  x23: 0x0000000000000001
   x24: 0x0000000170018750  x25: 0x0000000000000000  x26: 0x0000000000000001  x27: 0x0000000000000000
   x28: 0x0000000000000000   fp: 0x000000016e292a10   lr: 0x00000001892db450
    sp: 0x000000016e2929f0   pc: 0x0000000189213014 cpsr: 0x00000000

---

在附加的日志中，我们可以看到您的应用程序在解析

EAInputStream

中的数据时在

substringWithRange

上崩溃。这些都是有用的信息，谢谢你的快速回复。我怀疑substringWithRange可能是问题所在，但我的应用程序正在执行许多相同的操作。有时它在200次操作后崩溃，有时在400次操作后崩溃，从来都不一样。我不是在解析EAInputScream中的数据，我只是在读取一个文件并获取特定字符。所以，您需要找到一种方法，在开发环境中使用附加的调试器重现此崩溃，在其他情况下，很难在附加的日志中捕获它。我们可以看到，在解析

EAInputStream

中的数据时，您的应用程序在

substringWithRange

上崩溃。这些都是有用的信息，谢谢你的快速回复。我怀疑substringWithRange可能是问题所在，但我的应用程序正在执行许多相同的操作。有时它在200次操作后崩溃，有时在400次操作后崩溃，从来都不一样。我不是在解析来自EAInputScream的数据，我只是在读取一个文件并获取特定的字符。所以，您需要找到一种方法，在开发环境中使用附加的调试器重现此崩溃，在其他情况下，捕获它将非常困难