[PATCH] D83704: [llvm-readobj] Print help when executed with no input files

[James Henderson via Phabricator via llvm-commits]

jhenderson added a comment.

Thanks for looking at this. Is there a specific test-case for llvm-readobj's behaviour with no input file? You should add one if not.

GNU readelf prints the following warning in this case `readelf: Warning: Nothing to do.` and returns 1. I'm happy for us to deviate from GNU in this case slightly, perhaps as suggested above with the simple error message, but we definitely should return non-zero.


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