linux-kernel - [PATCH v3 3/3] perf test: Update sample filtering tests with multiple events

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20240820154504.128923-3-namhyung@kernel.org>
Date: Tue, 20 Aug 2024 08:45:04 -0700
From: Namhyung Kim <namhyung@...nel.org>
To: Arnaldo Carvalho de Melo <acme@...nel.org>,
	Ian Rogers <irogers@...gle.com>,
	Kan Liang <kan.liang@...ux.intel.com>
Cc: Jiri Olsa <jolsa@...nel.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-perf-users@...r.kernel.org,
	KP Singh <kpsingh@...nel.org>,
	Song Liu <song@...nel.org>,
	bpf@...r.kernel.org
Subject: [PATCH v3 3/3] perf test: Update sample filtering tests with multiple events

Add Multiple bpf-filter test for two or more events with filters.
It uses task-clock and page-faults events with different filter
expressions and check the perf script output

  $ sudo ./perf test filtering -vv
   96: perf record sample filtering (by BPF) tests:
  --- start ---
  test child forked, pid 2804025
  Checking BPF-filter privilege
  Basic bpf-filter test
  Basic bpf-filter test [Success]
  Failing bpf-filter test
  Error: task-clock event does not have PERF_SAMPLE_CPU
  Failing bpf-filter test [Success]
  Group bpf-filter test
  Error: task-clock event does not have PERF_SAMPLE_CPU
  Error: task-clock event does not have PERF_SAMPLE_CODE_PAGE_SIZE
  Group bpf-filter test [Success]
  Multiple bpf-filter test
  Multiple bpf-filter test [Success]
  ---- end(0) ----
   96: perf record sample filtering (by BPF) tests                     : Ok

Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
 tools/perf/tests/shell/record_bpf_filter.sh | 34 +++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/tools/perf/tests/shell/record_bpf_filter.sh b/tools/perf/tests/shell/record_bpf_filter.sh
index c5882d620db7..4df33c15bfa7 100755
--- a/tools/perf/tests/shell/record_bpf_filter.sh
+++ b/tools/perf/tests/shell/record_bpf_filter.sh
@@ -116,6 +116,36 @@ test_bpf_filter_group() {
   echo "Group bpf-filter test [Success]"
 }
 
+test_bpf_filter_multi() {
+  echo "Multiple bpf-filter test"
+
+  if ! perf record -e task-clock --filter 'period > 100000' \
+       -e page-faults --filter 'ip < 0xffffffff00000000' \
+       -o "${perfdata}" true 2> /dev/null
+  then
+    echo "Multiple bpf-filter test [Failed record]"
+    err=1
+    return
+  fi
+
+  if ! perf script -i "${perfdata}" -F period,event | grep task-clock | \
+	  awk '{ if (int($1) <= 100000) { print $0; exit(1); } }'
+  then
+    echo "Multiple bpf-filter test [Failed task-clock period]"
+    err=1
+    return
+  fi
+
+  if perf script -i "${perfdata}" -F event,ip | grep page-fault | \
+	  grep 'ffffffff[0-9a-f]*'
+  then
+    echo "Multiple bpf-filter test [Failed page-faults ip]"
+    err=1
+    return
+  fi
+
+  echo "Multiple bpf-filter test [Success]"
+}
 
 test_bpf_filter_priv
 
@@ -131,5 +161,9 @@ if [ $err = 0 ]; then
   test_bpf_filter_group
 fi
 
+if [ $err = 0 ]; then
+  test_bpf_filter_multi
+fi
+
 cleanup
 exit $err
-- 
2.46.0.184.g6999bdac58-goog