From nobody Mon Feb 9 04:29:28 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 09F1F35CBB2 for ; Wed, 12 Nov 2025 22:19:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762985993; cv=none; b=MQsMUf5dy7hNCrjxzGcAQJ67cnNHaeuLX0G8BstriD6VPzNkEleuMgnNvvjLvyUe0BjMFeQujx8A4yevxlveiXvk1Gp7hyHOWINbfTF8XHApcZKCxq8LMDGoBPHDgVthfK4J52aruT8WZ9ciegGMuUoJwnFk/knpbKwGX7fDehM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762985993; c=relaxed/simple; bh=p6zGcXkXOXZOM6fntSB2PcOW7ci/r7QO+B/3UUeuicA=; h=Message-ID:Date:From:To:Cc:Subject:References:MIME-Version: Content-Type; b=I12vM4bchdmsMiXOqiLLNXFgYApcbHhVBV4LH7Rz1kplXqZrS3LLDe3URsLmNedtzvmmNXoYq7A8o6bJhEeft+m97tkSkvJjGZ9v6NqfjDDnnaeVFduCj/GKbCI2YnPT1lQtdR7jyD+2TJ2e097mQfjMGbq3vyhVKBwuakNXolA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ER/6Dmnv; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ER/6Dmnv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 919F9C19423; Wed, 12 Nov 2025 22:19:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1762985992; bh=p6zGcXkXOXZOM6fntSB2PcOW7ci/r7QO+B/3UUeuicA=; h=Date:From:To:Cc:Subject:References:From; b=ER/6Dmnvv46tjcTwP7oN79ieg0jErA6DxhAv73dPej9rOqHAAcwL/YBZB0HFU3IOT Z6ZEa7jzvLoNx/dIYZhRUuAy6v1jgRT/CEabLJdrLGIgtG2y6bcwBKo+aiu7XM20mi PbMG2rdTc1tgUBKLMBZVnCcjkHwwG6t3FHMwWM3pTBh0fqYec18tHmFL5xiaoHQO20 g2BuQN26ODEetX55lpCd02AE6kCBs6XLasapIWIOZadpLeZ14neQ1gdQxueDdLRDBt OKEVKQzIUPSBqXq/8GAgV77gSmcnBWF8yAXla+In+qw5ylKDRoGHpmm3GGhfTuHiHb V/QuNLUzECWRw== Received: from rostedt by gandalf with local (Exim 4.98.2) (envelope-from ) id 1vJJCA-00000001EVr-39Sq; Wed, 12 Nov 2025 17:20:06 -0500 Message-ID: <20251112222006.608234586@kernel.org> User-Agent: quilt/0.68 Date: Wed, 12 Nov 2025 17:19:47 -0500 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Gabriele Monaco , Nam Cao , =?UTF-8?q?Thomas=20Wei=C3=9Fschuh?= Subject: [for-next][PATCH 1/5] selftest/ftrace: Generalise ftracetest to use with RV References: <20251112221946.389142361@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Gabriele Monaco The ftracetest script is a fairly complete test framework for tracefs-like subsystem, but it can only be used for ftrace selftests. If OPT_TEST_DIR is provided and includes a function file, use that as test directory going forward rather than just grabbing tests from it. Generalise function names like initialize_ftrace to initialize_system. Add the --rv argument to set up the test for rv, basically changing the trace directory to $TRACING_DIR/rv and displaying an error if that cannot be found. This prepares for rv selftests inclusion. Link: https://lore.kernel.org/r/20251017115203.140080-2-gmonaco@redhat.com Signed-off-by: Gabriele Monaco --- tools/testing/selftests/ftrace/ftracetest | 34 +++++++++++++------ .../ftrace/test.d/00basic/mount_options.tc | 2 +- .../testing/selftests/ftrace/test.d/functions | 6 ++-- 3 files changed, 28 insertions(+), 14 deletions(-) diff --git a/tools/testing/selftests/ftrace/ftracetest b/tools/testing/self= tests/ftrace/ftracetest index cce72f8b03dc..3230bd54dba8 100755 --- a/tools/testing/selftests/ftrace/ftracetest +++ b/tools/testing/selftests/ftrace/ftracetest @@ -22,6 +22,7 @@ echo " --fail-unresolved Treat UNRESOLVED as a failure" echo " -d|--debug Debug mode (trace all shell commands)" echo " -l|--logdir Save logs on the " echo " If is -, all logs output in console only" +echo " --rv Run RV selftests instead of ftrace ones" exit $1 } =20 @@ -133,6 +134,10 @@ parse_opts() { # opts LINK_PTR=3D shift 2 ;; + --rv) + RV_TEST=3D1 + shift 1 + ;; *.tc) if [ -f "$1" ]; then OPT_TEST_CASES=3D"$OPT_TEST_CASES `abspath $1`" @@ -152,9 +157,13 @@ parse_opts() { # opts ;; esac done - if [ ! -z "$OPT_TEST_CASES" ]; then + if [ -n "$OPT_TEST_CASES" ]; then TEST_CASES=3D$OPT_TEST_CASES fi + if [ -n "$OPT_TEST_DIR" -a -f "$OPT_TEST_DIR"/test.d/functions ]; then + TOP_DIR=3D$OPT_TEST_DIR + TEST_DIR=3D$TOP_DIR/test.d + fi } =20 # Parameters @@ -190,10 +199,6 @@ fi TOP_DIR=3D`absdir $0` TEST_DIR=3D$TOP_DIR/test.d TEST_CASES=3D`find_testcases $TEST_DIR` -LOG_TOP_DIR=3D$TOP_DIR/logs -LOG_DATE=3D`date +%Y%m%d-%H%M%S` -LOG_DIR=3D$LOG_TOP_DIR/$LOG_DATE/ -LINK_PTR=3D$LOG_TOP_DIR/latest KEEP_LOG=3D0 KTAP=3D0 DEBUG=3D0 @@ -201,14 +206,23 @@ VERBOSE=3D0 UNSUPPORTED_RESULT=3D0 UNRESOLVED_RESULT=3D0 STOP_FAILURE=3D0 +RV_TEST=3D0 # Parse command-line options parse_opts $* =20 +LOG_TOP_DIR=3D$TOP_DIR/logs +LOG_DATE=3D`date +%Y%m%d-%H%M%S` +LOG_DIR=3D$LOG_TOP_DIR/$LOG_DATE/ +LINK_PTR=3D$LOG_TOP_DIR/latest + [ $DEBUG -ne 0 ] && set -x =20 -# Verify parameters -if [ -z "$TRACING_DIR" -o ! -d "$TRACING_DIR" ]; then - errexit "No ftrace directory found" +if [ $RV_TEST -ne 0 ]; then + TRACING_DIR=3D$TRACING_DIR/rv + if [ ! -d "$TRACING_DIR" ]; then + err_ret=3D$err_skip + errexit "rv is not configured in this kernel" + fi fi =20 # Preparing logs @@ -419,7 +433,7 @@ trap 'SIG_RESULT=3D$XFAIL' $SIG_XFAIL __run_test() { # testfile # setup PID and PPID, $$ is not updated. (cd $TRACING_DIR; read PID _ < /proc/self/stat; set -e; set -x; - checkreq $1; initialize_ftrace; . $1) + checkreq $1; initialize_system; . $1) [ $? -ne 0 ] && kill -s $SIG_FAIL $SIG_PID } =20 @@ -496,7 +510,7 @@ for t in $TEST_CASES; do exit 1 fi done -(cd $TRACING_DIR; finish_ftrace) # for cleanup +(cd $TRACING_DIR; finish_system) # for cleanup =20 prlog "" prlog "# of passed: " `echo $PASSED_CASES | wc -w` diff --git a/tools/testing/selftests/ftrace/test.d/00basic/mount_options.tc= b/tools/testing/selftests/ftrace/test.d/00basic/mount_options.tc index 8a7ce647a60d..318939451caf 100644 --- a/tools/testing/selftests/ftrace/test.d/00basic/mount_options.tc +++ b/tools/testing/selftests/ftrace/test.d/00basic/mount_options.tc @@ -28,7 +28,7 @@ unmount_tracefs() { local mount_point=3D"$1" =20 # Need to make sure the mount isn't busy so that we can umount it - (cd $mount_point; finish_ftrace;) + (cd $mount_point; finish_system;) =20 cleanup } diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testin= g/selftests/ftrace/test.d/functions index a1052bf460fc..e8e718139294 100644 --- a/tools/testing/selftests/ftrace/test.d/functions +++ b/tools/testing/selftests/ftrace/test.d/functions @@ -104,7 +104,7 @@ clear_dynamic_events() { # reset all current dynamic ev= ents done } =20 -initialize_ftrace() { # Reset ftrace to initial-state +initialize_system() { # Reset ftrace to initial-state # As the initial state, ftrace will be set to nop tracer, # no events, no triggers, no filters, no function filters, # no probes, and tracing on. @@ -134,8 +134,8 @@ initialize_ftrace() { # Reset ftrace to initial-state enable_tracing } =20 -finish_ftrace() { - initialize_ftrace +finish_system() { + initialize_system # And recover it to default. [ -f options/pause-on-trace ] && echo 0 > options/pause-on-trace } --=20 2.51.0