CODEWITHSUNDEEP
androidobfuscationdeobfuscationandroid-r8
copolii
copolii

Reputation: 14506

How to deobfuscate R8 Stack traces?

I have an app and it crashes just like every good app should! A little while ago, the Android build tools started using R8 instead of Proguard. It worked and it sped up my build, so I left it alone. Then came an exception stack trace that I had to deobfuscate. I used the proguard UI, The retrace.bat script, and the commandline, but the supposedly deobfuscated stack trace still looked obfuscated.

Looking at the mapping.txt generated, I see a bunch of numbers (line numbers?) in the mapping that I don't recall having seen before. I suspect these are the reason why the deobfusctaors above all fail.

Is there any way to currently deobfuscate such stack traces?

Also posted as https://issuetracker.google.com/137078989

Upvotes: 11

Views: 4717

Answers (1)

sgjesse
sgjesse

Reputation: 4628

Please make sure to download the latest version of ProGuard from https://sourceforge.net/projects/proguard/ to get a version of retrace which will work with the R8 mapping files.

If that still does not produce the correct stack trace file a new bug (or update the existing).

Upvotes: 12

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