qemu-option-trace.texi

   1 Specify tracing options.
   2
   3 @table @option
   4 @item [enable=]@var{pattern}
   5 Immediately enable events matching @var{pattern}
   6 (either event name or a globbing pattern).  This option is only
   7 available if QEMU has been compiled with the @var{simple}, @var{log}
   8 or @var{ftrace} tracing backend.  To specify multiple events or patterns,
   9 specify the @option{-trace} option multiple times.
  10
  11 Use @code{-trace help} to print a list of names of trace points.
  12
  13 @item events=@var{file}
  14 Immediately enable events listed in @var{file}.
  15 The file must contain one event name (as listed in the @file{trace-events-all}
  16 file) per line; globbing patterns are accepted too.  This option is only
  17 available if QEMU has been compiled with the @var{simple}, @var{log} or
  18 @var{ftrace} tracing backend.
  19
  20 @item file=@var{file}
  21 Log output traces to @var{file}.
  22 This option is only available if QEMU has been compiled with
  23 the @var{simple} tracing backend.
  24 @end table