ios crash log

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转载最新推荐文章于 2026-03-27 10:19:45 发布 1k 阅读 AI 写同款· GEO 优化 ›

深入理解iOS Crash Log Crash Log Crash Log的主要来源有两种： Apple提供的，可以从用户设备中直接拷贝，或者从iTunes Connect（XCode）下载三方或者自研Framework统计，三方服务包括Fabric，Bugly等。这篇文章讲到的Crash Log是Apple提供的。获取设备获取 USB连接设备，接着在XCode菜单栏依次选择：Window ->... 阅读详情

ios crash log 经验汇总贴

symbolicatecrash 在 xcode 4.3中的位置(2012-04-19 17:02:15)

在xocde编译app的时候会同时生成一个以dsym作为后缀的文件，这个文件会记录app的crashlog，需要通过symbolicatecrash来查看，但是这个工具在xccode4.3的时候改变了存放的位置。
1.给xcode打一个补丁：命令行运行 /usr/bin/xcode-select-print-path
如果输出"/Developer"或者其他非"/Applications/Xcode.app/Contents/Developer/"的内容，运行下面的命令：sudo /usr/bin/xcode-select -switch/Applications/Xcode.app/Contents/Developer/
2.查找symbolicatecrash：find/Applications/Xcode.app -name symbolicatecrash -type f获取路径，我的是Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/PrivateFrameworks/DTDeviceKit.framework/Versions/A/Resources/symbolicatecrash
在执行symbolicatecrash之前先切换到他的目录下： cd Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/PrivateFrameworks/DTDeviceKit.framework/Versions/A/Resources/

4.3之前1.直接find/Developer -name symbolicatecrash -typef

2.切换到目录下，之后：./symbolicatecrash/somePath/MyCrashLogFile.crash/somePath/MyAppName.app.dSYM

大概说明一下是:

1.同步应用程序以后,找到你要查看的日志文件,日志文件对应mac的位置,xp\vista的位置.

2.发现日志文件都是看不懂的16进制,如何进行转换成我们看得懂的内容.

3.使用命令行工具 "symbolicatecrash"来进行转换,可以把工具复制到任何地方都可以调用的路径:sudo cp/Developer/Platforms/iPhoneOS.platform/Developer/Library/PrivateFrameworks/DTDeviceKit.framework/Versions/A/Resources/symbolicatecrash /usr/local/bin/

4.讲了 "symbolicatecrash" 工具怎么用.一般只要:symbolicatecrashreport.crashMobileLines.app.dSYM >report-with-symbols.crash,就可以了

5.注意说明的是,你在用Xcode debug打包的时候,会生成两个东西,一个是XXX.app,另一个是XXX.app.dSYM,这两个是相对应的,与我写的第4点里的MobileLines.app.dSYM是对应起来的.这里的日志文件必须是你打包的那个版本,不然就没有解析出你的日志文件了.通俗的说,你安装到手机上的app和这个dSYM,是配对的,如果你想要看这个手机上的日志文件,那你必须保存对应的dSYM文件去解析日志文件.每一次重新打包都会重新生成dSYM文件.

6.好了,你可以根据你的 report-with-symbols.crash,日志文件来看看你的程序哪里出问题了

Sometimes programs crash. This annoys users and developers alike. Users are frustrated because they cannot use crashing software, developers are frustrated because they have to hunt bugs instead of doing something creative and rewarding. How do we communicate if an iPhone application crashes?

I’ll start with a disclaimer. I’m not sure whether the information provided in this post is covered by iPhone Developer Program NDA or not. If it is, the post will be removed. Secondly, this post is a result of googling, so I haven’t invented anything new here.

Working with crash logs typically involves certain interaction between developers and users, unless they are automagically sent to the developer. First of all, the user should get the crash log and send it to the developer, who should examine it, find the bug and fix it.

iPhone OS and Mac OS X are remarkably similar architectures. Both store crash logs to help identify crashing bugs. The difference between the two is how users retrieve them. On Mac OS X every user has unrestricted access to crash logs related to the applications she runs. The iPhone does not even have a file browser. What to do? iTunes comes to the rescue.

Whenever you synchronize your iPhone or iPod Touch, all the crash logs are transferred to your computer. Here are their locations:

Mac OS X:~/Library/Logs/CrashReporter/MobileDevice/<DEVICE_NAME>
Windows XP:C:\Documents and Settings\<USERNAME>\Application Data\Apple computer\Logs\CrashReporter/<DEVICE_NAME>
Windows Vista:C:\Users\<USERNAME>\AppData\Roaming\Apple computer\Logs\CrashReporter/MobileDevice/<DEVICE_NAME>

The log file names start with application name and have the extension “crash”. They are just plain text files and can be sent by e-mail in original or zipped form, or even copy-pasted into your e-mail program.

The second part is trickier. Both Apple and common sense suggest that all AppStore binaries are shipped with stripped symbols. If you ever saw a crash log like this, read on:

Thread 0 Crashed:0 libobjc.A.dylib 0x300c87ec 0x300bb000 + 552761 MobileLines 0x00006434 0x1000 + 215562 MobileLines 0x000064c2 0x1000 + 216983 UIKit 0x30a740ac 0x30a54000 + 1312444 UIKit 0x30a66110 0x30a54000 + 740005 UIKit 0x30a6565c 0x30a54000 + 712606 GraphicsServices 0x3169b0b4 0x31696000 + 206607 GraphicsServices 0x3169d818 0x31696000 + 307448 IOMobileFramebuffer 0x31f3e8f8 0x31f3d000 + 63929 com.apple.framework.IOKit 0x30f342b8 0x30f30000 + 1708010 CoreFoundation 0x3025ced4 0x30229000 + 21269211 CoreFoundation 0x3025bed6 0x30229000 + 20859812 CoreFoundation 0x3025b584 0x30229000 + 20621213 GraphicsServices 0x316998e4 0x31696000 + 1456414 UIKit 0x30a5e308 0x30a54000 + 4173615 UIKit 0x30a671dc 0x30a54000 + 7830016 MobileLines 0x00002090 0x1000 + 424017 MobileLines 0x0000202c 0x1000 + 4140

In a nutshell, it contains function addresses and offsets instead of function names and line numbers. The structure is obvious, but, to be honest, I don’t know what“MobileLines 0×00006434 0×1000 + 21556″ is, even though I have all the source code. Thanks to Apple Developer Tools and to Craig Hockenberry whowrote about it, we have a perfect solution called symbolicatecrash.

I copied it to/usr/local/bin/so that I can run it whenever I want without trying to remember its original location (you may prefer a symbolic link):
$ sudo cp /Developer/Platforms/iPhoneOS.platform/Developer/Library/Xcode/Plug-ins/iPhoneRemoteDevice.xcodeplugin/Contents/Resources/symbolicatecrash /usr/local/bin/

Running this script with the-h option provides the minimal help:

$ symbolicatecrash -h
usage:

symbolicatecrash [-Ah] LOGFILE [SYMBOL_PATH ...]

Symbolicates a crashdump LOGFILE which may be "-" to refer
to stdin. By default, all heuristics will be employed
in an attempt to symbolicate all addresses. Additional
symbol files can be found under specified directories.

Options:
   -A Only symbolicate the application, not libraries
   -h Display this message
   -v Verbose

To add symbols to the crash log you need the dSYM file generated by the linker when you compiled your application for AppStore. In other words, when you build for AppStore you should keep the dSYM package in a safe place backed up by Time Machine. This is very important.You should keep a copy of the dSYM for each version of your application ever shipped. If you have the package, translating code offsets to function names with line numbers has never been easier:

$ symbolicatecrash report.crash MobileLines.app.dSYM > report-with-symbols.crash

Here is the result:

Thread 0 Crashed:0 libobjc.A.dylib 0x300c87ec objc_msgSend + 201 MobileLines 0x00006434 -[BoardView setSelectedPiece:] (BoardView.m:321)2 MobileLines 0x000064c2 -[BoardView touchesBegan:withEvent:] (BoardView.m:349)3 UIKit 0x30a740ac -[UIWindow sendEvent:] + 2644 UIKit 0x30a66110 -[UIApplication sendEvent:] + 2485 UIKit 0x30a6565c _UIApplicationHandleEvent + 40886 GraphicsServices 0x3169b0b4 PurpleEventCallback + 4287 GraphicsServices 0x3169d818 HeartbeatVBLCallback + 1528 IOMobileFramebuffer 0x31f3e8f8 IOMobileFramebufferNotifyFunc + 1249 com.apple.framework.IOKit 0x30f342b8 IODispatchCalloutFromCFMessage + 30410 CoreFoundation 0x3025ced4 __CFMachPortPerform + 7211 CoreFoundation 0x3025bed6 CFRunLoopRunSpecific + 236412 CoreFoundation 0x3025b584 CFRunLoopRunInMode + 4413 GraphicsServices 0x316998e4 GSEventRunModal + 26814 UIKit 0x30a5e308 -[UIApplication _run] + 40415 UIKit 0x30a671dc UIApplicationMain + 106416 MobileLines 0x00002090 main (main.m:16)17 MobileLines 0x0000202c start + 44

Now, this ismuch better. Happy debugging!

Other useful references:

gdb查看:

如果采用上述方法还是解析不出来，则可以利用gdb来解析：

方法如下：还是在.app,和.dSYM目录下，

打开终端,输入:

/Developer/Platforms/iPhoneOS.platform/Developer/usr/libexec/gdb/gdb-arm-apple-darwin 打包的.app/MyApp

要想显示在哪个类，哪一行，则使用：

(gdb) set print symbol-filename on

(gdb) p/a 0x0002b0ee

这里0x0002b0ee 是你报错程序的错误,如:

Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0   libobjc.A.dylib                   0x34bc8c9a objc_msgSend + 18
1   UIKit                             0x34309146 -[UIViewController didReceiveMemoryWarning] + 10
2   UIKit                             0x3430915c -[UIViewController _didReceiveMemoryWarning:] + 8
3   Foundation                        0x36b7d17c _nsnote_callback + 136
4   CoreFoundation                    0x355bb208 __CFXNotificationPost_old + 396
5   CoreFoundation                    0x35555ee4 _CFXNotificationPostNotification + 112
6   Foundation                        0x36b7a5cc -[NSNotificationCenter postNotificationName:object:userInfo:] + 64
7   Foundation                        0x36b7c1ba -[NSNotificationCenter postNotificationName:object:] + 18
8   UIKit                             0x342df35a -[UIApplication _performMemoryWarning] + 42
9   UIKit                             0x342dfd7c -[UIApplication _receivedMemoryNotification] + 120
10 UIKit                             0x342dd500 _memoryStatusChanged + 36
11 CoreFoundation                    0x355bbd62 __CFNotificationCenterDarwinCallBack + 18
12 CoreFoundation                    0x355b8bd8 __CFMachPortPerform + 204
13 CoreFoundation                    0x355c3a90 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 20
14 CoreFoundation                    0x355c5838 __CFRunLoopDoSource1 + 160
15 CoreFoundation                    0x355c6606 __CFRunLoopRun + 514
16 CoreFoundation                    0x35556ebc CFRunLoopRunSpecific + 224
17 CoreFoundation                    0x35556dc4 CFRunLoopRunInMode + 52
18 GraphicsServices                  0x3417d418 GSEventRunModal + 108
19 GraphicsServices                  0x3417d4c4 GSEventRun + 56
20 UIKit                             0x341b4d62 -[UIApplication _run] + 398
21 UIKit                             0x341b2800 UIApplicationMain + 664
22 PABankiPad                        0x00002618 0x1000 + 5656
23 PABankiPad                        0x000025cc 0x1000 + 5580

这里,可以用:p/a 0x00002618

查看.app,和.dSYM与崩溃日志是否一致的方法：

输入命令:

dwarfdump ‐‐uuid MyApp.app/MyApp

返回内容:

UUID: E2D9D241‐37D3‐CE06‐7272‐653B813963E2 (armv6) MyApp.app/MyApp

输入命令:

dwarfdump ‐‐uuid MyApp.app.dSYM

返回内容

UUID: E2D9D241‐37D3‐CE06‐7272‐653B813963E2 (armv6)MyApp.app.dSYM/Contents/Resources/DWARF/MyApp

对比结果是否一致.

把命令链接到所有用户可以使用

sudo ln -s /Developer/Platforms/iPhoneOS.platform/Developer/Library/PrivateFrameworks/DTDeviceKit.framework/Versions/A/Resources/symbolicatecrash /usr/local/bin/

sudo ln -s /Developer/Platforms/iPhoneOS.platform/Developer/usr/libexec/gdb/gdb-arm-apple-darwin/usr/local/bin/

批量转换日志:(app包和dSYM还有carsh文件都放到对应的目录下了)

cd ~/Desktop/a1201s4z1.5c
pwd
k=1
for i in *.crash;do
        echo $i
        symbolicatecrash $i PABankiPad.app.dSYM > $k.log
        ((k++))
done