[Qemu-devel] [PATCH] docs: update the usage example of "dtrace" backend in tracing.txt

[Lin Ma <lma@suse.com>]

The usage example of dtrace is quite ancient, We have tracetool.py with
different parameters instead of the original tracetool shell script for
a long time, So update the old information.

Signed-off-by: Lin Ma <lma@suse.com>
---
 docs/tracing.txt | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/docs/tracing.txt b/docs/tracing.txt
index 7117c5e..3853a6a 100644
--- a/docs/tracing.txt
+++ b/docs/tracing.txt
@@ -258,11 +258,11 @@ is generated to make use in scripts more convenient.  This step can also be
 performed manually after a build in order to change the binary name in the .stp
 probes:
 
-    scripts/tracetool --dtrace --stap \
-                      --binary path/to/qemu-binary \
-                      --target-type system \
-                      --target-name x86_64 \
-                      <trace-events >qemu.stp
+    scripts/tracetool.py --backends=dtrace --format=stap \
+                         --binary path/to/qemu-binary \
+                         --target-type system \
+                         --target-name x86_64 \
+                         <trace-events >qemu.stp
 
 == Trace event properties ==
 
-- 
2.1.4