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function::ustack
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.
