Is there a way to set a breakpoint at the beginning of any NSLog statement?

Question

Some part of the large code base prints strange NSLog expressions, and I'm trying to determine where it NSLog from. Is there a way to put 1 breakpoint at the beginning of every NSLog call so that I can see where it is being called from, instead of manually setting breakpoints in all the places that call NSLog ?

Answer 1

In Xcode 6 :

Step 1 :
On the Left Navigator, select Breakpoint Navigator ( command ⌘ + 7 ):

Step 2 :
Click the + button in the lower left corner ( Add new breakpoint )
then select Add Symbolic Breakpoint ... :

Step 3 :
In Symbol, enter NSLog .

Alternatively, you can do the same in Debug → Breakpoints → Create Symbolic Breakpoint .

Fo Xcode 5 , see.

Answer 2

If you want to break a specific log message, you can use:

This example will be broken down into each log containing the word "Warning."

Answer 3

In the breakpoint navigator ( command + 6 ), add (at the bottom of the plus sign) a symbolic breakpoint and use NSLog as the character.

Answer 4

According to this, you can set such a breakpoint by doing this in the lldb console:

 breakpoint set --name NSLog 

One way to do this with Xcode is to set a breakpoint in the main function or on you AppDelegate applicationDidFinishLaunchin (read: as soon as possible). Then you launch your application, and when it stops at the specified breakpoint, you have access to the lldb console: you enter the above line and press return, and lldb prints something like this:

 Breakpoint 3: where = Foundation`NSLog, address = 0x32a3da08 

At this point, you resume your application and it will pause again when NSLog is called (pay attention to the call stack using the Debug Navigator).