diff options
Diffstat (limited to 'docs/devel/tracing.txt')
| -rw-r--r-- | docs/devel/tracing.txt | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/docs/devel/tracing.txt b/docs/devel/tracing.txt index 6f815ecbd7..bc52f12485 100644 --- a/docs/devel/tracing.txt +++ b/docs/devel/tracing.txt @@ -18,7 +18,7 @@ for debugging, profiling, and observing execution. 3. Run the virtual machine to produce a trace file: - qemu -trace events=/tmp/events ... # your normal QEMU invocation + qemu --trace events=/tmp/events ... # your normal QEMU invocation 4. Pretty-print the binary trace file: @@ -157,11 +157,11 @@ The state of events can also be queried and modified through monitor commands: * trace-event NAME on|off Enable/disable a given trace event or a group of events (using wildcards). -The "-trace events=<file>" command line argument can be used to enable the +The "--trace events=<file>" command line argument can be used to enable the events listed in <file> from the very beginning of the program. This file must contain one event name per line. -If a line in the "-trace events=<file>" file begins with a '-', the trace event +If a line in the "--trace events=<file>" file begins with a '-', the trace event will be disabled instead of enabled. This is useful when a wildcard was used to enable an entire family of events but one noisy event needs to be disabled. |