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[192.155.81.56]) by smtp.gmail.com with ESMTPSA id b127-20020a62cf85000000b0051b9c02e4a3sm3821888pfg.178.2022.06.02.09.45.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Jun 2022 09:45:53 -0700 (PDT) From: Jeff Xie To: rostedt@goodmis.org Cc: mingo@redhat.com, mhiramat@kernel.org, zanussi@kernel.org, linux-kernel@vger.kernel.org, Jeff Xie Subject: [PATCH v11 3/4] trace/objtrace: Add testcases for objtrace Date: Fri, 3 Jun 2022 00:45:17 +0800 Message-Id: <20220602164518.286295-4-xiehuan09@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220602164518.286295-1-xiehuan09@gmail.com> References: <20220602164518.286295-1-xiehuan09@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add a series of testcases to illustrate correct and incorrect usage of objtrace trigger. Signed-off-by: Jeff Xie --- .../ftrace/test.d/trigger/trigger-objtrace.tc | 41 +++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/trigger/trigger-objtrace.tc diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-objtrace.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-objtrace.tc new file mode 100644 index 000000000000..d894442b6a30 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-objtrace.tc @@ -0,0 +1,41 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: event trigger - test objtrace-trigger +# requires: kprobe_events "objtrace":README + +fail() { #msg + echo $1 + exit_fail +} + +echo 'p bio_add_page arg1=$arg1 arg2=$arg2' > kprobe_events + +FEATURE=`grep objtrace events/kprobes/p_bio_add_page_0/trigger` +if [ -z "$FEATURE" ]; then + echo "objtrace trigger is not supported" + exit_unsupported +fi + +echo "Test objtrace trigger" +echo 'objtrace:add:arg1,0x28:u32:1 if comm == "cat"' > \ + events/kprobes/p_bio_add_page_0/trigger +if [ -z $? ]; then + fail "objtrace trigger syntax error" +fi + +echo "Test objtrace semantic errors" + +# Being lack of objtrace command +! echo 'objtrace:arg1,0x28:u32:1' > events/kprobes/p_bio_add_page_0/trigger +# Bad parameter name +! echo 'objtrace:add:argx:u32:1' > events/kprobes/p_bio_add_page_0/trigger +# The parameter existed on event +! echo 'objtrace:add:arg2:u32:1' > events/kprobes/p_bio_add_page_0/trigger + +echo "reset objtrace trigger" + +echo '!objtrace:add:arg1,0x28:u32' > \ + events/kprobes/p_bio_add_page_0/trigger +echo '-:p_bio_add_page_0' >> ./kprobe_events + +exit 0 -- 2.25.1