Break on _NSLockError() to debug … How to?

Question

During debugging the console always spits me an error message: \"Break on _NSLockError() to debug\"

My assumption is: in XCode i have to appear a certain breackpoint

Answer 1

To do this automatically for your project in XCode:

1. In Xcode, Option-Command-B to open the Breakpoints window (or Run>Show>Breakpoints).
2. Where it says "Double-Click for Symbol", double click... and paste in "_NSLockError".
3. Click anywhere else in the window, and your new entry will automatically be updated (or just add it manually) with Module = "Foundation" (without the quotes)
4. Build & Go and you will now drop into the debugger automatically when you hit an automatically-detected deadlock.