| |
| Specify tracing options. |
| |
| ``[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. |
| |
| ``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. |
| |
| ``file=FILE`` |
| |
| Log output traces to *FILE*. |
| This option is only available if QEMU has been compiled with |
| the ``simple`` tracing backend. |
