Systemtap context-envvar tapset
Context functions provide additional information about where an event occurred. These functions can provide information such as a backtrace to where the event occurred and the current register values for the processor.
env_var
Fetch environment variable from current process
See function::env_var(3stap) for details.
function::env_var(3stap),
stap(1), stapprobes(3stap)