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-rw-r--r--tools/perf/Documentation/perf-annotate.txt11
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diff --git a/tools/perf/Documentation/perf-annotate.txt b/tools/perf/Documentation/perf-annotate.txt
index fe168e8165..b95524bea0 100644
--- a/tools/perf/Documentation/perf-annotate.txt
+++ b/tools/perf/Documentation/perf-annotate.txt
@@ -155,6 +155,17 @@ include::itrace.txt[]
stdio or stdio2 (Default: 0). Note that this is about selection of
functions to display, not about lines within the function.
+--data-type[=TYPE_NAME]::
+ Display data type annotation instead of code. It infers data type of
+ samples (if they are memory accessing instructions) using DWARF debug
+ information. It can take an optional argument of data type name. In
+ that case it'd show annotation for the type only, otherwise it'd show
+ all data types it finds.
+
+--type-stat::
+ Show stats for the data type annotation.
+
+
SEE ALSO
--------
linkperf:perf-record[1], linkperf:perf-report[1]