gdb: The Print Command with Objective-C
15.4.4.2 The Print Command With Objective-C
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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.
Info Catalog
gdb: Method Names in Commands
gdb: Objective-C