Provided by: systemtap-doc_5.1-4.1_amd64 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.

SEE ALSO

       tapset::errno(3stap)

SystemTap Tapset Reference                         April 2024                         FUNCTION::RETURNVAL(3stap)