function::stack
名称
function::stack — Return address at given depth of kernel stack backtrace
Synopsis
stack:long(n:long)
Arguments
n- number of levels to descend in the stack.
Description
Performs a simple (kernel) 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
stack is called, or in what order.
