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-rw-r--r--tools/perf/Documentation/perf-buildid-list.txt8
1 files changed, 7 insertions, 1 deletions
diff --git a/tools/perf/Documentation/perf-buildid-list.txt b/tools/perf/Documentation/perf-buildid-list.txt
index 5eaac6f26d5..25c52efcc7f 100644
--- a/tools/perf/Documentation/perf-buildid-list.txt
+++ b/tools/perf/Documentation/perf-buildid-list.txt
@@ -16,6 +16,9 @@ This command displays the buildids found in a perf.data file, so that other
tools can be used to fetch packages with matching symbol tables for use by
perf report.
+It can also be used to show the build id of the running kernel or in an ELF
+file using -i/--input.
+
OPTIONS
-------
-H::
@@ -23,10 +26,13 @@ OPTIONS
Show only DSOs with hits.
-i::
--input=::
- Input file name. (default: perf.data)
+ Input file name. (default: perf.data unless stdin is a fifo)
-f::
--force::
Don't do ownership validation.
+-k::
+--kernel::
+ Show running kernel build id.
-v::
--verbose::
Be more verbose.