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| Started by | Jiri Olsa <jolsa@kernel.org> |
|---|---|
| First post | 2017-07-03 17:00 +0200 |
| Last post | 2017-07-03 17:00 +0200 |
| Articles | 1 — 1 participant |
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[PATCH 01/15] perf tools: Fix -n option Jiri Olsa <jolsa@kernel.org> - 2017-07-03 17:00 +0200
| From | Jiri Olsa <jolsa@kernel.org> |
|---|---|
| Date | 2017-07-03 17:00 +0200 |
| Subject | [PATCH 01/15] perf tools: Fix -n option |
| Message-ID | <tZaZt-2UC-77@gated-at.bofh.it> |
The kernel fails to add a non sampling event event
with having precise_ip set.
Make sure the precise_ip is 0 when using -n option
to create non sampling event in record.
Link: http://lkml.kernel.org/n/tip-l513fzc1houvu7tl1bo5y65y@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
tools/perf/util/evsel.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 6f4882f8d61f..915fe3cd6544 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -890,8 +890,10 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts,
attr->sample_period = 0;
}
- if (opts->no_samples)
+ if (opts->no_samples) {
attr->sample_freq = 0;
+ attr->precise_ip = 0;
+ }
if (opts->inherit_stat)
attr->inherit_stat = 1;
--
2.9.4
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