[Lldb-commits] [lldb] [lldb] Extend frame recognizers to hide frames from backtraces (PR #104523)

[Jason Molenda via lldb-commits]

jasonmolenda wrote:

Ah sorry was still writing and posted by accident.

For stepping we have a user exposed setting `target.process.thread.step-avoid-regexp` which lldb uses to step over C++ inlined methods in your code, and allow the user to extend this to add it for their own libraries.  I know these frame recognizers are coming from the Language plugins so it's not as simple as a single master regex list like `target.process.thread.step-avoid-regexp` that a user can add on to.  But i do wonder if there should be a way for a user to provide regexes that should behave this way too.

I don't know about printing the "Some frames were omitted" message by default when this takes place.  Then again, I guess with the recognizers we're talking about here with C++ it will not be common, and so the one backtrace during your session where there's std::function stuff on the stack and it's omitted, it wouldn't be noisy.  I don't know how frequent you think these recognizers might match for Swift code.

https://github.com/llvm/llvm-project/pull/104523