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#!/usr/bin/stap
# scf.stp
# A reimplementation of user script:smp_call_function example given at OLS 2005
# in the current language.

global traces

probe begin { print("Starting probe, type control-c to stop.\n") }

probe kernel.function("smp_call_function")
{
  traces[pid(), pexecname(), backtrace()] ++
}

probe end {
  foreach ([pid, name, stack] in traces-) { # sort by frequency encountered
    printf ("traces[%d,%s,\n", pid, name)
    print_syms (stack)
    printf ("] = %d\n", traces[pid, name, stack]);
  }
}