FUNCTION::UBACKTRACE(3stap)                             Context Functions                            FUNCTION::UBACKTRACE(3stap)



NAME
       function::ubacktrace - Hex backtrace of current task stack. EXPERIMENTAL!

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.

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.



SystemTap Tapset Reference                                 August 2011                               FUNCTION::UBACKTRACE(3stap)