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