function::registers_valid.3stap man page
function::registers_valid — Determines validity of register and u_register in current context
Synopsis
registers_valid:long()
Arguments
None
Description
This function returns 1 if register and u_register can be used in the current context, or 0 otherwise. For example, registers_valid returns 0 when called from a begin or end probe.
See Also0
tapset::context(3stap)
Info
May 2019 SystemTap Tapset Reference Context Functions