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



NAME
       function::sprint_ubacktrace - Return stack back trace for current task as string. EXPERIMENTAL!

SYNOPSIS
           sprint_ubacktrace:string()

ARGUMENTS
       None

DESCRIPTION
       Returns a simple backtrace for the current task. One line per address. Includes the symbol name (or hex address if symbol
       couldn't be resolved) and module name (if found). Includes the offset from the start of the function if found, otherwise
       the offset will be added to the module (if found, between brackets). Returns the backtrace as string (each line
       terminated by a newline character). Note that the returned stack will be truncated to MAXSTRINGLEN, to print fuller and
       richer stacks use print_ubacktrace. Equivalent to sprint_ustack(ubacktrace), but more efficient (no need to translate
       between hex strings and final backtrace string).

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::SPRINT_UBA(3stap)