How to automatically set breakpoints on all methods in Xcode?

Question

How do I automatically set breakpoints on all methods in Xcode? I want to know how my program works, and which methods invoke when I interact with the user interface.

Answer 1

1. Run your app in Xcode.
2. Press ⌘⌃Y (Debug -> Pause).
3. Go to the debugger console: ⌘⇧C
4. Type breakpoint set -r . -s <PRODUCT_NAME> (insert your app's name).

lldb will answer with something like...

Breakpoint 1: 4345 locations 

Now just press the Continue button.

breakpoint set is lldb's command to create breakpoints. The location is specified using a regular expression (-r) on function/method names, in this case . which matches any method. The -s option is used to limit the scope to your executable (needed to exclude frameworks).

When you run your app lldb will now break whenever the app hits a function from your main executable.

To disable the breakpoints type breakpoint delete 1 (insert proper breakpoint number).

Answer 2

In some cases, it is more convenient to set breakpoints only on some of the methods.

Using LLDB we can put breakpoint on all ViewDidLoad methods by name, for example.

(lldb) breakpoint set -n ViewDidLoad 

Here "-n" means by name.

Also, we can put breakpoints by selector name:

(lldb) breakpoint set -S alignLeftEdges: 

Here "-S" means by selector.