NAME¶
function::ubacktrace - Hex backtrace of current user-space task stack.
SYNOPSIS¶
ubacktrace:string()
ARGUMENTS¶
None
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.
SEE ALSO0¶
tapset::ucontext-unwind(3stap)