function::returnval.3stap man page

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 Also0

tapset::errno(3stap)

Info

March 2016 SystemTap Tapset Reference Errno Tapset