function::registers_valid(3stap) [centos man page]
FUNCTION::REGISTERS_(3stap) Context Functions FUNCTION::REGISTERS_(3stap)NAME
function::registers_valid - Determines validity of register and u_register in current context
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.
SystemTap Tapset Reference June 2014 FUNCTION::REGISTERS_(3stap)
I know the following questions are noobish questions but I am asking them because I am confused about the basics of history behind UNIX and LINUX.
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