Provided by: systemtap-doc_2.3-1ubuntu1.4_all bug

NAME

       function::returnval - Possible return value of probed function

SYNOPSIS

           returnval:long()

ARGUMENTS

       None

DESCRIPTION

       Return the value of the register in which function values are typically returned. Can be
       used in probes where $return isn't available. This is only a guess of the actual return
       value and can be totally wrong. Normally only used in dwarfless probes.