--- xnu/xnu-12377.101.15/tools/trace/ktruss.lua
+++ /dev/null
@@ -1,28 +0,0 @@
-#!/usr/local/bin/recon
-
-local ktrace = require 'ktrace'
-
-if not arg[1] or arg[1] == '-h' then
-  print[[
-usage: ktruss <syscall-name> [<more-names> ...]
-
-Use Kernel TRace to print User Space Syscalls (ktruss).]]
-  os.exit(arg[1] == nil)
-end
-
-local sess = ktrace.Session.new()
-
-for i = 1, #arg do
-  sess:add_callback_pair('BSC_' .. arg[i], function (start, finish)
-    print(('%s[%d]: %s(0x%x, 0x%x, 0x%x, 0x%x) -> %d'):format(
-        sess:procname_for_threadid(start.threadid),
-        sess:pid_for_threadid(start.threadid), arg[1], start[1], start[2],
-        start[3], start[4], finish[2]))
-  end)
-end
-
-local ok, err = sess:start()
-if not ok then
-  io.stderr:write('tracing failed: ', err, '\n')
-  os.exit(1)
-end