linux-kernel - [PATCH 3/3] perf report: fill per-callchain symbol annotation histograms

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Date:   Tue, 18 Apr 2017 00:55:20 +0200
From:   Alexis Berlemont <alexis.berlemont@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     Alexis Berlemont <alexis.berlemont@...il.com>,
        peterz@...radead.org, mingo@...hat.com, acme@...nel.org,
        alexander.shishkin@...ux.intel.com
Subject: [PATCH 3/3] perf report: fill per-callchain symbol annotation histograms

The per-callchain histograms must be fed at some points with the
profiling samples. A solution is to fill them right after having filled
the per-symbol ones: in the callback hist_iter__report_callback.

Signed-off-by: Alexis Berlemont <alexis.berlemont@...il.com>
---
 tools/perf/builtin-report.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index c18158b83eb1..d825a599d4b4 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -136,6 +136,14 @@ static int hist_iter__report_callback(struct hist_entry_iter *iter,
 		if (single)
 			err = hist_entry__inc_addr_samples(he, evsel->idx,
 							   al->addr);
+		if (err == 0) {
+			struct callchain_cursor *cursor = &callchain_cursor;
+
+			err = hist_entry_cxt__inc_addr_samples(he,
+							       evsel->idx,
+							       al->addr,
+							       cursor);
+		}
 	} else {
 		err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr);
 	}
-- 
2.12.2