Name
function::ubacktrace —
Hex backtrace of current user-space task stack.
Synopsis
ubacktrace:string()
Description
Return a string of hex addresses that are a backtrace of the
stack of the current task. Output may be truncated as per maximum
string length. Returns empty string when current probe point cannot
determine user backtrace. See backtrace
for kernel traceback.
Note
To get (full) backtraces for user space applications and shared
shared libraries not mentioned in the current script run stap with
-d /path/to/exe-or-so and/or add --ldd to load all needed unwind data.