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function::returnval(3stap)

function::returnval - Possible return value of probed function

FUNCTION::RETURNVAL(3stap) Errno Tapset FUNCTION::RETURNVAL(3stap)

function::returnval - Possible return value of probed function


returnval:long()

None

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.

tapset::errno(3stap)

September 2026 SystemTap Tapset Reference Ver

systemtap 5.6-r0 · enterprise-packages · ingested 2026-10-02