FUNCTION::UBACKTRACE

Section: Context Functions (3stap)
Updated: November 2020
Page Index
 

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 ALSO

tapset::ucontext-unwind(3stap)


 

Index

NAME
SYNOPSIS
ARGUMENTS
DESCRIPTION
NOTE
SEE ALSO