linux-kernel - [PATCH v2 3/3] perf test: Add basic perf record tests

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: Windows password security audit tool. GUI, reports in PDF.

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

Message-Id: <20220414014642.3308206-3-irogers@google.com>
Date:   Wed, 13 Apr 2022 18:46:42 -0700
From:   Ian Rogers <irogers@...gle.com>
To:     Alexey Bayduraev <alexey.bayduraev@...il.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Ian Rogers <irogers@...gle.com>,
        Alexey Bayduraev <alexey.v.bayduraev@...ux.intel.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Riccardo Mancini <rickyman7@...il.com>,
        linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org
Cc:     Stephane Eranian <eranian@...gle.com>
Subject: [PATCH v2 3/3] perf test: Add basic perf record tests

Test the --per-thread flag.
Test Intel machine state capturing.

Suggested-by: Namhyung Kim <namhyung@...nel.org>
Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 tools/perf/tests/shell/record.sh | 42 ++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100755 tools/perf/tests/shell/record.sh

diff --git a/tools/perf/tests/shell/record.sh b/tools/perf/tests/shell/record.sh
new file mode 100755
index 000000000000..cd1cf14259b8
--- /dev/null
+++ b/tools/perf/tests/shell/record.sh
@@ -0,0 +1,42 @@
+#!/bin/sh
+# perf record tests
+# SPDX-License-Identifier: GPL-2.0
+
+set -e
+
+err=0
+test_per_thread() {
+  echo "Basic --per-thread mode test"
+  perf record -e instructions:u --per-thread -o- true 2> /dev/null \
+    | perf report -i- -q \
+    | egrep -q true
+  echo "Basic --per-thread mode test [Success]"
+}
+
+test_register_capture() {
+  echo "Register capture test"
+  if ! perf list | egrep -q 'br_inst_retired.near_call'
+  then
+    echo "Register capture test [Skipped missing instruction]"
+    return
+  fi
+  if ! perf record --intr-regs=\? 2>&1 | egrep -q 'available registers: AX BX CX DX SI DI BP SP IP FLAGS CS SS R8 R9 R10 R11 R12 R13 R14 R15'
+  then
+    echo "Register capture test [Skipped missing registers]"
+    return
+  fi
+  if ! perf record -o - --intr-regs=di,r8,dx,cx -e cpu/br_inst_retired.near_call/p \
+    -c 1000 --per-thread true 2> /dev/null \
+    | perf script -F ip,sym,iregs -i - 2> /dev/null \
+    | egrep -q "DI:"
+  then
+    echo "Register capture test [Failed missing output]"
+    err=1
+    return
+  fi
+  echo "Register capture test [Success]"
+}
+
+test_per_thread
+test_register_capture
+exit $err
-- 
2.36.0.rc0.470.gd361397f0d-goog