SCRIPT DEBUGGER RUN ON THE MAIN THREAD MOVIE

(lldb) e sum (Int) $R0 = 6 // You can also use $R0 to refer to this variable in the future (during current debug session) (lldb) e sum = 4 // Change value of sum variable (lldb) e sum (Int) $R2 = 4 // sum variable will be '4' till the end of debugging sessionĮxpression command also has some flags. If you need you can hang it above your Mac to remember these commands 🙂 I have also prepared the map of useful LLDB commands with description and examples. Honorable mentions: command, platform, gui.Control app’s execution flow: process, breakpoint, thread, watchpoint.Get overall app’s state + language specific commands: bugreport, frame, language.

Explore variables values: expression, e, print, po, p.

I’d like to walk you through the most useful commands instead. LLDB is an enormous tool and it has a lot of useful commands inside. I personally use them daily for debugging. Let’s break down some of the most useful LLDB tricks. However, the console is still a big part of our workflow. Fancy Xcode Debugger UI shows you all available information without typing a single LLDB command. So it’s extremely important to make this 70% of our time as pleasant as possible.

SCRIPT DEBUGGER RUN ON THE MAIN THREAD MOVIE

The rest 20% goes on thinking about the architectural approaches + communication with teammates and just 10% actually on writing code.ĭebugging is like being the detective in a crime movie where you are also the murderer. As engineers we spend almost 70% of our time on debugging.

Script debugger run on the main thread