NAME

       function::ucallers - Return first n elements of user stack backtrace

SYNOPSIS

           ucallers:string(n:long)

ARGUMENTS

       n
           number of levels to descend in the stack (not counting the top level). If n is -1, print the entire
           stack.

DESCRIPTION

       This function returns a string of the first n hex addresses from the backtrace of the user stack. Output
       may be truncated as per maximum string length (MAXSTRINGLEN).

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                         March 2016                          FUNCTION::UCALLERS(3stap)