2 Specify tracing options.
6 Immediately enable events matching *PATTERN*
7 (either event name or a globbing pattern). This option is only
8 available if QEMU has been compiled with the ``simple``, ``log``
9 or ``ftrace`` tracing backend. To specify multiple events or patterns,
10 specify the :option:`-trace` option multiple times.
12 Use :option:`-trace help` to print a list of names of trace points.
16 Immediately enable events listed in *FILE*.
17 The file must contain one event name (as listed in the ``trace-events-all``
18 file) per line; globbing patterns are accepted too. This option is only
19 available if QEMU has been compiled with the ``simple``, ``log`` or
20 ``ftrace`` tracing backend.
24 Log output traces to *FILE*.
25 This option is only available if QEMU has been compiled with
26 the ``simple`` tracing backend.