perf tests c2c: Add a basic c2c

Add basic c2c record and report testing to gain some coverage.

Signed-off-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>

tools/perf/tests/shell/c2c.sh

@@ -0,0 +1,62 @@
+#!/bin/bash
+# perf c2c tests
+# SPDX-License-Identifier: GPL-2.0
+
+set -e
+
+err=0
+perfdata=$(mktemp /tmp/__perf_c2c_test.perf.data.XXXXX)
+
+cleanup() {
+	rm -f "${perfdata}"
+	rm -f "${perfdata}".old
+	trap - EXIT TERM INT
+}
+
+trap_cleanup() {
+	echo "Unexpected signal in ${FUNCNAME[1]}"
+	cleanup
+	exit 1
+}
+trap trap_cleanup EXIT TERM INT
+
+check_c2c_support() {
+	# Check if perf c2c record works.
+	if ! perf c2c record -o "${perfdata}" -- true > /dev/null 2>&1 ; then
+		return 1
+	fi
+	return 0
+}
+
+test_c2c_record_report() {
+	echo "c2c record and report test"
+	if ! check_c2c_support ; then
+		echo "c2c record and report test [Skipped: perf c2c record failed (possibly missing hardware support)]"
+		err=2
+		return
+	fi
+
+	# Run a workload that does some memory operations.
+	if ! perf c2c record -o "${perfdata}" -- perf test -w datasym 1 > /dev/null 2>&1 ; then
+		echo "c2c record and report test [Skipped: perf c2c record failed during workload]"
+		return
+	fi
+
+	if ! perf c2c report -i "${perfdata}" --stdio > /dev/null 2>&1 ; then
+		echo "c2c record and report test [Failed: report failed]"
+		err=1
+		return
+	fi
+
+	if ! perf c2c report -i "${perfdata}" -N > /dev/null 2>&1 ; then
+		echo "c2c record and report test [Failed: report -N failed]"
+		err=1
+		return
+	fi
+
+	echo "c2c record and report test [Success]"
+}
+
+test_c2c_record_report
+cleanup
+exit $err