linux-kernel - [PATCH v2] perf test: Fix test case perf script tests on s390

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Date: Mon, 22 Jan 2024 10:59:55 +0100
From: Thomas Richter <tmricht@...ux.ibm.com>
To: linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        acme@...nel.org, namhyung@...nel.org
Cc: svens@...ux.ibm.com, gor@...ux.ibm.com, sumanthk@...ux.ibm.com,
        hca@...ux.ibm.com, Thomas Richter <tmricht@...ux.ibm.com>
Subject: [PATCH v2] perf test: Fix test case perf script tests on s390

In linux next repo, test case 'perf script tests' fails on s390.
The root case is a command line invocation of perf record with
call-graph information. On s390 only dwarf formatted call-graphs
are supported and only on software events.

Change the command line parameters fors s390.

Output before:
 # perf test 89
 89: perf script tests              : FAILED!
 #

Output after:
 # perf test 89
 89: perf script tests              : Ok
 #

Fixes: 0dd5041c9a0e ("perf addr_location: Add init/exit/copy functions")
Signed-off-by: Thomas Richter <tmricht@...ux.ibm.com>
Cc: Ian Rogers <irogers@...gle.com>
---
 tools/perf/tests/shell/script.sh | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/tools/perf/tests/shell/script.sh b/tools/perf/tests/shell/script.sh
index 5ae7bd0031a8..2973adab445d 100755
--- a/tools/perf/tests/shell/script.sh
+++ b/tools/perf/tests/shell/script.sh
@@ -54,7 +54,14 @@ def sample_table(*args):
 def call_path_table(*args):
     print(f'call_path_table({args}')
 _end_of_file_
-	perf record -g -o "${perfdatafile}" true
+	case $(uname -m)
+	in s390x)
+		cmd_flags="--call-graph dwarf -e cpu-clock";;
+	*)
+		cmd_flags="-g";;
+	esac
+
+	perf record $cmd_flags -o "${perfdatafile}" true
 	perf script -i "${perfdatafile}" -s "${db_test}"
 	echo "DB test [Success]"
 }
-- 
2.43.0