NAME

       function::ustack - Return address at given depth of user stack backtrace

SYNOPSIS

           ustack:long(n:long)

ARGUMENTS

       n
           number of levels to descend in the stack.

DESCRIPTION

       Performs a simple (user space) backtrace, and returns the element at the specified position. The results
       of the backtrace itself are cached, so that the backtrace computation is performed at most once no matter
       how many times ustack is called, or in what order.

SystemTap Tapset Reference                         March 2016                            FUNCTION::USTACK(3stap)