How to use otool to check if bitcode is enabled

Question

I am playing around with otool now for hour, but I didn't figure out how to get infos, if a binary is bitcode enabled.

It tried the following:

First I build a simple iOS app and run:

otool -arch arm64 -l testApp1 | grep bitcode

After that I downloaded a binary framework from kontakt.io. I am sure that there bitcode is enabled. So I tried:

otool -arch arm64 -l KontaktSDK | grep bitcode

I also got no infos back. Do I something wrong? Is this a bug with the new Xcode8?

The reason why I play around with this is, that I have build a binary framework and I don't know why sometimes the framework is fully bitcode enabled and sometimes it isn't.

score 2 · Answer 1 · edited May 23 '17 at 11:53

2

According to this answer there's two possible things to check, bitcode and __LLVM.

When I download the KontaktSDK, I can do this:

[.../KontaktSDK.framework]:;otool -arch arm64 -l KontaktSDK | grep __LLVM
  segname __LLVM
   segname __LLVM

edited May 23 '17 at 11:53

Community

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answered Sep 27 '16 at 06:11

Michael Dautermann

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Does it mean, that __LLVM is found, bitcode is enabled? – patrickS Sep 27 '16 at 06:23
that appears to be the case (looking at many other StackOverflow & Google hits here), but I haven't found the definitive documentation on apple.com. – Michael Dautermann Sep 27 '16 at 06:26

How to use otool to check if bitcode is enabled

1 Answers1