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-rw-r--r--scripts/tracetool/backend/ftrace.py8
1 files changed, 7 insertions, 1 deletions
diff --git a/scripts/tracetool/backend/ftrace.py b/scripts/tracetool/backend/ftrace.py
index 7ddd5d11a6..e03698a2ed 100644
--- a/scripts/tracetool/backend/ftrace.py
+++ b/scripts/tracetool/backend/ftrace.py
@@ -12,7 +12,7 @@ __maintainer__ = "Stefan Hajnoczi"
 __email__      = "stefanha@redhat.com"
 
 
-from tracetool import out
+from tracetool import out, expand_format_string
 
 
 PUBLIC = True
@@ -43,3 +43,9 @@ def generate_h(event, group):
 def generate_h_backend_dstate(event, group):
     out('    trace_event_get_state_dynamic_by_id(%(event_id)s) || \\',
         event_id="TRACE_" + event.name.upper())
+
+def generate_rs(event, group):
+    out('        let format_string = c"%(fmt)s";',
+        '        unsafe {bindings::ftrace_write(format_string.as_ptr() as *const c_char, %(args)s);}',
+        fmt=expand_format_string(event.fmt),
+        args=event.args.rust_call_varargs())