当我的应用在他们的设备上崩溃时，我有用户通过电子邮件向我发送堆栈跟踪。在 iOS 6 之前，它们看起来像这样：
CRASH: NSInvalidArgumentException (*** -[__NSArrayM insertObject:atIndex:]: object cannot be nil)
TRACE: (
0 CoreFoundation 0x355e58a7 __exceptionPreprocess + 186
1 libobjc.A.dylib 0x3798c259 objc_exception_throw + 32
2 CoreFoundation 0x3553a1d7 -[__NSArrayM insertObject:atIndex:] + 186
3 MYAPP 0x0006c0f7 MYAPP + 188663
4 MYAPP 0x000652a3 MYAPP + 160419
5 Foundation 0x3512ac29 __65-[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:]_block_invoke_0 + 16
6 Foundation 0x350826d9 -[NSURLConnectionInternalConnection invokeForDelegate:] + 28
7 Foundation 0x350826a3 -[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:] + 198
8 Foundation 0x350825c5 -[NSURLConnectionInternal _withActiveConnectionAndDelegate:] + 60
9 CFNetwork 0x34de77f5 _ZN19URLConnectionClient23_clientDidFinishLoadingEPNS_26ClientConnectionEventQueueE + 192
10 CFNetwork 0x34ddc4a5 _ZN19URLConnectionClient26ClientConnectionEventQueue33processAllEventsAndConsumePayloadEP20XConnectionEventInfoI12XClientEvent18XClientEventParamsEl + 424
11 CFNetwork 0x34ddc1a3 _ZN19URLConnectionClient13processEventsEv + 106
12 CFNetwork 0x34ddc0d9 _ZN17MultiplexerSource7performEv + 156
13 CoreFoundation 0x355b9ad3 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 14
14 CoreFoundation 0x355b929f __CFRunLoopDoSources0 + 214
15 CoreFoundation 0x355b8045 __CFRunLoopRun + 652
16 CoreFoundation 0x3553b4a5 CFRunLoopRunSpecific + 300
17 CoreFoundation 0x3553b36d CFRunLoopRunInMode + 104
18 GraphicsServices 0x371d7439 GSEventRunModal + 136
19 UIKit 0x33047cd5 UIApplicationMain + 1080
20 MYAPP 0x0003fbcf MYAPP + 7119
21 MYAPP 0x0003fb84 MYAPP + 7044
)
从 CoreFoundation 等方法名称并询问用户发生了什么，我可以很好地了解崩溃发生的位置。
然而，自从 iOS 6 发布以来，我的崩溃报告都是这样的：
CRASH: NSRangeException (*** -[__NSArrayI objectAtIndex:]: index 2147483670 beyond bounds [0 .. 11])
TRACE: (
0 CoreFoundation 0x3a3872bb <redacted> + 186
1 libobjc.A.dylib 0x32ca697f objc_exception_throw + 30
2 CoreFoundation 0x3a2d1e8d <redacted> + 164
3 MYAPP 0x000ff721 MYAPP + 214817
4 MYAPP 0x000e8999 MYAPP + 121241
5 UIKit 0x372f60ad <redacted> + 72
6 UIKit 0x372f605f <redacted> + 30
7 UIKit 0x372f603d <redacted> + 44
8 UIKit 0x372f58f3 <redacted> + 502
9 UIKit 0x372e1287 <redacted> + 526
10 UIKit 0x37373f3d <redacted> + 748
11 UIKit 0x3721e52b <redacted> + 318
12 UIKit 0x3720b809 <redacted> + 380
13 UIKit 0x3720b123 <redacted> + 6154
14 GraphicsServices 0x362085a3 <redacted> + 590
15 GraphicsServices 0x362081d3 <redacted> + 34
16 CoreFoundation 0x3a35c173 <redacted> + 34
17 CoreFoundation 0x3a35c117 <redacted> + 138
18 CoreFoundation 0x3a35af99 <redacted> + 1384
19 CoreFoundation 0x3a2cdebd CFRunLoopRunSpecific + 356
20 CoreFoundation 0x3a2cdd49 CFRunLoopRunInMode + 104
21 GraphicsServices 0x362072eb GSEventRunModal + 74
22 UIKit 0x3725f301 UIApplicationMain + 1120
23 MYAPP 0x000ccbd3 MYAPP + 7123
24 MYAPP 0x000ccb88 MYAPP + 7048
)
我从这里获取堆栈跟踪，当重新打开应用程序时，系统会提示用户发送电子邮件：
void uncaughtExceptionHandler(NSException *exception) {
//make a file name to write the data to using the documents directory:
NSString *fileName = [NSString stringWithFormat:@"%@/crashlog.txt", documentsDirectory];
//create content - four lines of text
NSString *content = [NSString stringWithFormat:@"CRASH: %@ (%@)\n\nTRACE: %@", [exception name], [exception reason], [exception callStackSymbols]];
//save content to the documents directory
[content writeToFile:fileName atomically:NO encoding:NSStringEncodingConversionAllowLossy error:nil];
}
没有方法名称，这比无用更糟糕。有没有办法让这些方法名称回到我的堆栈跟踪中？这是一个发布配置，而不是调试。
编辑：
我已按照此答案中的说明进行操作。
我正在从包中提取.app和.dSYM文件.xcarchive并运行atos -arch armv7 -o 'MyApp.app'/'MyApp'
但是，我仍然没有从atos.