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87c0868f PM |
1 | .. |
2 | The contents of this file must be kept in sync with qemu-option-trace.texi | |
3 | until all the users of the texi file have been converted to rst and | |
4 | the texi file can be removed. | |
5 | ||
6 | Specify tracing options. | |
7 | ||
8 | .. option:: [enable=]PATTERN | |
9 | ||
10 | Immediately enable events matching *PATTERN* | |
11 | (either event name or a globbing pattern). This option is only | |
12 | available if QEMU has been compiled with the ``simple``, ``log`` | |
13 | or ``ftrace`` tracing backend. To specify multiple events or patterns, | |
14 | specify the :option:`-trace` option multiple times. | |
15 | ||
16 | Use :option:`-trace help` to print a list of names of trace points. | |
17 | ||
18 | .. option:: events=FILE | |
19 | ||
20 | Immediately enable events listed in *FILE*. | |
21 | The file must contain one event name (as listed in the ``trace-events-all`` | |
22 | file) per line; globbing patterns are accepted too. This option is only | |
23 | available if QEMU has been compiled with the ``simple``, ``log`` or | |
24 | ``ftrace`` tracing backend. | |
25 | ||
26 | .. option:: file=FILE | |
27 | ||
28 | Log output traces to *FILE*. | |
29 | This option is only available if QEMU has been compiled with | |
30 | the ``simple`` tracing backend. |