gistfile1.txt

~/Projects/libusdt ➔  ./test_usdt32 foo bar i i
enabled

~/Projects/libusdt ➔  sudo dtrace -Zn 'testlibusdt*:::{ trace(arg0); trace(arg1) }'
dtrace: description 'testlibusdt*:::' matched 0 probes
CPU     ID                    FUNCTION:NAME
  1   4915                          foo:bar                 1                2
  1   4916                          foo:bar                 1                2