The Print Command with Objective-C (Debugging with GDB)

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Gdb/docs/latest/gdb/The-Print-Command-with-Objective 002dC


15.4.4.2 The Print Command With Objective-C

The print command has also been extended to accept methods. For example:

print -[object hash]

will tell GDB to send the hash message to object and print the result. Also, an additional command has been added, print-object or po for short, which is meant to print the description of an object. However, this command may only work with certain Objective-C libraries that have a particular hook function, _NSPrintForDebugger, defined.