基础

1 Difference between .ipa and .xcarchive:

• IPA is a zipped up Payload folder which has YourApp.app bundle. .app contains all your application resources like images, plist files, compressed nibs and the executable, CodeSigning resources,etc.
• xcarchive contains your app and dsym files. .DSYM is required to desymbolicate your crash logs. Right click on saved .xcarchive and select show package contents to see what it contains.

2 .crash文件

3 .app.dSYM

• .xcarchive中有

4 .app文件

• .xcarchive中也有，也可以从.ipa中解压得到，.ipa就是zip文件

5 symbolicatecrash

• 如果你不知道这个命令在哪儿也没关系
  find /Applications/Xcode.app -name symbolicatecrash -type f
• 我的电脑是在：
  /Applications/Xcode.app/Contents/SharedFrameworks/DVTFoundation.framework/Versions/A/Resources/symbolicatecrash

入正题

使用symbolicatecrash分析crash文件

• 首先，在桌面建一个文件夹crash，接着需要准备4个文件（上面的2，3，4，5）
• /Applications/Xcode.app/Contents/SharedFrameworks/DVTFoundation.framework/Versions/A/Resources/symbolicatecrash aaa.crash bbb.app.dSYM > ccc.txt
• 如果运行上面命令出现
  Error: "DEVELOPER_DIR" is not defined at ./symbolicatecrash line 60.
  解决方法是输入以下命令：（xcode-select --print-path 可以找到DEVELOPER_DIR）
  export DEVELOPER_DIR="/Applications/Xcode.app/Contents/Developer"

参考文献

• http://www.jianshu.com/p/da186c14db0f
• https://github.com/answer-huang/dSYMTools