ios - iOS：用异常原因符号化崩溃日志

Answer 1

1. symbolicatecrash - command line utility

   You are calling the script wrong, it should be:

   symbolicatecrash “FILENAME.crash" "NAME_OF_MY_APP.app.dSYM"

2. atos - command line utility

   This call is also wrong:

   atos -arch armv7 -l LOAD_ADDRESS_OF_THE_APP -o NAME_OF_MY_APP.app.dSYM 0x000ad031

   Where LOAD_ADDRESS_OF_THE_APP is the first address shown in the Binary Images section for your app. See also: iOS crash reports: atos not working as expected

Now regarding the additional questions/remarks:

• Line number not appearing using symbolicatecrash:

  This is because you passed along the app binary, which mostly has all symbols stripped (due to size) and even if the symbols would not be stripped it would never show line numbers. Always use the dSYM for symbolication if you have it.

• Exception description missing:

  In most cases, Apple's iOS crash reports do not provide the Application Specific Information block in the reports which would contain that information. If you only have Apples crash reports, there is nothing you can do.

Some additional information:

• Symbolication system calls

  You will need the symbols of the specific CPU architecture and iOS version the crash report was created with. So you would need at least an armv7 device and an arm64 device with the specific iOS version and having those at least once connected to Xcode that it could import the symbols. Otherwise there will be symbols left unsymbolicated in the report.

• Let Xcode symbolicate it

  If your system is setup correctly, all you need to do is drag the crash report into the top Devices Logs entry in the Xcode organizer and it will call symbolicatecrash for you and find the correct dSYM via Spotlight. (Requires the dSYMs folder to be indexed by Spotlight)

• Alternatives to collect crash reports

  There are multiple alternatives out there to collect crash reports. Open Source solutions, free services and paid services that provide SDKs to collect the crash reports in your app and send them to a server, symbolicate and group them automatically. (Disclaimer: I am the developer of QuincyKit Open Source project and Co-Founder of HockeyApp.net service)