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-rw-r--r--tools/perf/Documentation/perf-trace.txt6
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt
index 13293de..ed485df 100644
--- a/tools/perf/Documentation/perf-trace.txt
+++ b/tools/perf/Documentation/perf-trace.txt
@@ -117,6 +117,12 @@ the thread executes on the designated CPUs. Default is to monitor all CPUs.
--syscalls::
Trace system calls. This options is enabled by default.
+--call-graph [mode,type,min[,limit],order[,key][,branch]]::
+ Setup and enable call-graph (stack chain/backtrace) recording.
+ See `--call-graph` section in perf-record and perf-report
+ man pages for details. The ones that are most useful in 'perf trace'
+ are 'dwarf' and 'lbr', where available, try: 'perf trace --call-graph dwarf'.
+
--event::
Trace other events, see 'perf list' for a complete list.