NAME
    gdb.unwinder - Unwinder class and register_unwinder function.

CLASSES
    builtins.object
        Unwinder
    
    class Unwinder(builtins.object)
     |  Base class (or a template) for frame unwinders written in Python.
     |  
     |  An unwinder has a single method __call__ and the attributes
     |  described below.
     |  
     |  Attributes:
     |      name: The name of the unwinder.
     |      enabled: A boolean indicating whether the unwinder is enabled.
     |  
     |  Methods defined here:
     |  
     |  __call__(self, pending_frame)
     |      GDB calls this method to unwind a frame.
     |      
     |      Arguments:
     |          pending_frame: gdb.PendingFrame instance.
     |      
     |      Returns:
     |          gdb.UnwindInfo instance.
     |  
     |  __init__(self, name)
     |      Constructor.
     |      
     |      Args:
     |          name: An identifying name for the unwinder.
     |  
     |  ----------------------------------------------------------------------
     |  Data descriptors defined here:
     |  
     |  __dict__
     |      dictionary for instance variables (if defined)
     |  
     |  __weakref__
     |      list of weak references to the object (if defined)

FUNCTIONS
    register_unwinder(locus, unwinder, replace=False)
        Register unwinder in given locus.
        
        The unwinder is prepended to the locus's unwinders list. Unwinder
        name should be unique.
        
        Arguments:
            locus: Either an objfile, progspace, or None (in which case
                   the unwinder is registered globally).
            unwinder: An object of a gdb.Unwinder subclass
            replace: If True, replaces existing unwinder with the same name.
                     Otherwise, raises exception if unwinder with the same
                     name already exists.
        
        Returns:
            Nothing.
        
        Raises:
            RuntimeError: Unwinder name is not unique
            TypeError: Bad locus type

FILE
    /opt/gsrc/packages/gdb-7.11.1/share/gdb/python/gdb/unwinder.py