Section: Context Functions (3stap)
Updated: November 2021
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function::ucallers - Return first n elements of user stack backtrace
number of levels to descend in the stack (not counting the top level). If n is -1, print the entire stack.
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).
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.
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Time: 20:13:29 GMT, November 19, 2021