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Desymbolicate a crash log from an iOS App

Inspiration from Apple

https://developer.apple.com/library/archive/technotes/tn2151/_index.html#//apple_ref/doc/uid/DTS40008184-CH1-SYMBOLICATEWITHXCODE

Steps to get a dsym file

  • Build the iOS app for Archive
  • Extract the MyApp.xcarchive
  • Inside that file, you will find your dSYM files.
  • To do this manually, inspect the Package Contents.

Get your device crash log

Pull the .crash file off a device. I normally use xCode for this.

The manual method

atos -arch arm64 -o TheElements.app.dSYM/Contents/Resources/DWARF/TheElements -l 0x1000e4000 0x00000001000effdc

0x1000e4000 = address of app image
0x00000001000effdc = is the stripped name of the symbol you want to turn into a readable name

The pro method

In xCode 9, the file you want is here: /Applications/Xcode.app/Contents/SharedFrameworks/DVTFoundation.framework/Versions/A/Resources/symbolicatecrash

Print to Terminal the logs

export DEVELOPER_DIR="/Applications/Xcode.app/Contents/Developer"
./symbolicatecrash -v crash_log_20_9_2018.crash myapp.app.dSYM

Achieve same without specifying the dsym file

./symbolicatecrash crash_log_20_9_2018.crash > /yourPath/crash1_symbolicated.crash