linux-kernel - [PATCH v4 8/9] perf c2c: Support AUX trace

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Date:   Fri,  6 Nov 2020 17:48:52 +0800
From:   Leo Yan <leo.yan@...aro.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...hat.com>, Ian Rogers <irogers@...gle.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Namhyung Kim <namhyung@...nel.org>,
        John Garry <john.garry@...wei.com>,
        Will Deacon <will@...nel.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Kemeng Shi <shikemeng@...wei.com>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Al Grant <Al.Grant@....com>, James Clark <james.clark@....com>,
        Wei Li <liwei391@...wei.com>,
        Andre Przywara <andre.przywara@....com>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:     Leo Yan <leo.yan@...aro.org>
Subject: [PATCH v4 8/9] perf c2c: Support AUX trace

This patch adds the AUX callbacks in session structure, so support
AUX trace for "perf c2c" tool; make itrace memory event as default for
"perf c2c", this tells the AUX trace decoder to synthesize samples and
can be used for statistics.

Signed-off-by: Leo Yan <leo.yan@...aro.org>
---
 tools/perf/builtin-c2c.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 98ae33eac6cc..c5babeaa3b38 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -369,6 +369,10 @@ static struct perf_c2c c2c = {
 		.exit		= perf_event__process_exit,
 		.fork		= perf_event__process_fork,
 		.lost		= perf_event__process_lost,
+		.attr		= perf_event__process_attr,
+		.auxtrace_info  = perf_event__process_auxtrace_info,
+		.auxtrace       = perf_event__process_auxtrace,
+		.auxtrace_error = perf_event__process_auxtrace_error,
 		.ordered_events	= true,
 		.ordering_requires_timestamps = true,
 	},
@@ -2678,6 +2682,12 @@ static int setup_coalesce(const char *coalesce, bool no_source)
 
 static int perf_c2c__report(int argc, const char **argv)
 {
+	struct itrace_synth_opts itrace_synth_opts = {
+		.set = true,
+		.mem = true,	/* Only enable memory event */
+		.default_no_sample = true,
+	};
+
 	struct perf_session *session;
 	struct ui_progress prog;
 	struct perf_data data = {
@@ -2757,6 +2767,8 @@ static int perf_c2c__report(int argc, const char **argv)
 		goto out;
 	}
 
+	session->itrace_synth_opts = &itrace_synth_opts;
+
 	err = setup_nodes(session);
 	if (err) {
 		pr_err("Failed setup nodes\n");
-- 
2.17.1