linux-kernel - [PATCH 03/21] perf tools: Add callchain_

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Date:   Wed, 24 Jan 2018 12:51:25 +0100
From:   Jiri Olsa <jolsa@...nel.org>
To:     Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Ingo Molnar <mingo@...nel.org>
Cc:     lkml <linux-kernel@...r.kernel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        David Ahern <dsahern@...il.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Andy Lutomirski <luto@...capital.net>,
        Arnaldo Carvalho de Melo <acme@...nel.org>
Subject: [PATCH 03/21] perf tools: Add callchain__printf for pure callchain dump

Adding callchain__printf for the pure callchain dump
without the lbr portion, it will be used later in this
patchset. The lbr dump is now included in the new
perf_evsel__callchain__printf function.

Link: http://lkml.kernel.org/n/tip-xg1o9sr5p4yfxe61lu13m802@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
---
 tools/perf/util/session.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index c71ced7db152..da0635e2f100 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -917,15 +917,11 @@ static void callchain__lbr_callstack_printf(struct perf_sample *sample)
 	}
 }
 
-static void callchain__printf(struct perf_evsel *evsel,
-			      struct perf_sample *sample)
+static void callchain__printf(struct perf_sample *sample)
 {
 	unsigned int i;
 	struct ip_callchain *callchain = sample->callchain;
 
-	if (perf_evsel__has_branch_callstack(evsel))
-		callchain__lbr_callstack_printf(sample);
-
 	printf("... FP chain: nr:%" PRIu64 "\n", callchain->nr);
 
 	for (i = 0; i < callchain->nr; i++)
@@ -933,6 +929,16 @@ static void callchain__printf(struct perf_evsel *evsel,
 		       i, callchain->ips[i]);
 }
 
+static void
+perf_evsel__callchain__printf(struct perf_evsel *evsel,
+			      struct perf_sample *sample)
+{
+	if (perf_evsel__has_branch_callstack(evsel))
+		callchain__lbr_callstack_printf(sample);
+
+	callchain__printf(sample);
+}
+
 static void branch_stack__printf(struct perf_sample *sample)
 {
 	uint64_t i;
@@ -1095,7 +1101,7 @@ static void dump_sample(struct perf_evsel *evsel, union perf_event *event,
 	sample_type = evsel->attr.sample_type;
 
 	if (sample_type & PERF_SAMPLE_CALLCHAIN)
-		callchain__printf(evsel, sample);
+		perf_evsel__callchain__printf(evsel, sample);
 
 	if ((sample_type & PERF_SAMPLE_BRANCH_STACK) && !perf_evsel__has_branch_callstack(evsel))
 		branch_stack__printf(sample);
-- 
2.13.6