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[213.77.89.56]) by smtp.gmail.com with ESMTPSA id o27-20020a056512051b00b0051179ae1846sm365561lfb.280.2024.02.10.15.51.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 10 Feb 2024 15:51:27 -0800 (PST) From: =?utf-8?q?=C5=81ukasz_Bartosik?= To: Jason Baron , Jim Cromie , Greg Kroah-Hartman , Andrew Morton , Kees Cook , Douglas Anderson Cc: Guenter Roeck , Yaniv Tzoreff , Benson Leung , Steven Rostedt , Vincent Whitchurch , Pekka Paalanen , Sean Paul , Daniel Vetter , Simon Ser , John Ogness , Petr Mladek , Sergey Senozhatsky , linux-kernel@vger.kernel.org, upstream@semihalf.com Subject: [PATCH v4 35/39] dyndbg-test: add test which verifies default dst Date: Sun, 11 Feb 2024 00:50:05 +0100 Message-ID: <20240210235009.2405808-36-ukaszb@chromium.org> X-Mailer: git-send-email 2.43.0.687.g38aa6559b0-goog In-Reply-To: <20240210235009.2405808-1-ukaszb@chromium.org> References: <20240210235009.2405808-1-ukaszb@chromium.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1790558839809750458 X-GMAIL-MSGID: 1790558839809750458 Add test which verifies default trace destination feature. Signed-off-by: Łukasz Bartosik --- .../dynamic_debug/dyndbg_selftest.sh | 75 +++++++++++++++++++ 1 file changed, 75 insertions(+) diff --git a/tools/testing/selftests/dynamic_debug/dyndbg_selftest.sh b/tools/testing/selftests/dynamic_debug/dyndbg_selftest.sh index 4a0340d2c3e8..ae386e4de6a4 100755 --- a/tools/testing/selftests/dynamic_debug/dyndbg_selftest.sh +++ b/tools/testing/selftests/dynamic_debug/dyndbg_selftest.sh @@ -195,6 +195,16 @@ function check_err_msg() { fi } +# $1 - default destination to check +function check_default_dst() { + dst=$(tail -50 /proc/dynamic_debug/control | grep "#: Default trace destination" | \ + cut -d':' -f3 | sed -e 's/^[[:space:]]*//') + if [ "$dst" != "$1" ]; then + echo -e "${RED}: $BASH_SOURCE:$BASH_LINENO default dest '$dst' does not match with '$1'" + exit + fi +} + function basic_tests { echo -e "${GREEN}# BASIC_TESTS ${NC}" ddcmd =_ # zero everything (except class'd sites) @@ -343,6 +353,70 @@ function test_flags { ifrmmod test_dynamic_debug } +# test verifies default destination +function test_default_destination { + echo -e "${GREEN}# TEST_DEFAULT_DESTINATION ${NC}" + + check_default_dst 0 + modprobe test_dynamic_debug + + ddcmd class,D2_CORE,+T # default dest is 0 + check_match_ct =T 1 -v + + ddcmd open foo # foo becomes default dest + is_trace_instance_opened foo + check_trace_instance_dir foo 1 + check_default_dst foo + + ddcmd class,D2_CORE,+T # default dest is foo + check_match_ct =T:foo 1 -v + + ddcmd open,0 # reopening sets default dest to 0 + check_default_dst 0 + + ddcmd class,D2_CORE,-T + check_match_ct =:foo 1 -v + + ddcmd class,D2_CORE,+T # default dest is 0 but since callsite was already labelled + # then reuse label + check_match_ct =T:foo 1 -v + + ddcmd open bar # bar becomes default dest + is_trace_instance_opened bar + check_trace_instance_dir bar 1 + check_default_dst bar + + ddcmd class,D2_KMS,+T # default dest is bar + check_match_ct =T:bar 1 -v + + ddcmd class,D2_KMS,+T:0 # set 0 dest explicitly + check_match_ct =T 1 -v + + ddcmd class,D2_KMS,-T + + ddcmd open,foo # reopening sets default dest to foo + check_default_dst foo + + ddcmd class,D2_KMS,+T # default dest is 0 but since callsite was already labelled + # then reuse label + check_match_ct =T:foo 2 -v + + ddcmd "class D2_CORE -T:0" + ddcmd "class D2_KMS -T:0" + check_default_dst foo + + ddcmd close foo + is_trace_instance_closed foo + check_default_dst 0 # after closing foo which was default dest we revert + # to 0 as default dest + + ddcmd close bar + is_trace_instance_closed bar + check_default_dst 0 + + ifrmmod test_dynamic_debug +} + function test_actual_trace { echo -e "${GREEN}# TEST_ACTUAL_TRACE ${NC}" ddcmd =_ @@ -790,6 +864,7 @@ tests_list=( comma_terminator_tests test_percent_splitting test_flags + test_default_destination test_actual_trace cycle_tests_normal cycle_not_best_practices