From patchwork Fri Aug 20 20:46:46 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steven Rostedt X-Patchwork-Id: 12450403 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F0E06C432BE for ; Fri, 20 Aug 2021 20:47:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CAB626115C for ; Fri, 20 Aug 2021 20:47:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239307AbhHTUsW (ORCPT ); Fri, 20 Aug 2021 16:48:22 -0400 Received: from mail.kernel.org ([198.145.29.99]:36010 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230465AbhHTUsV (ORCPT ); Fri, 20 Aug 2021 16:48:21 -0400 Received: from gandalf.local.home (cpe-66-24-58-225.stny.res.rr.com [66.24.58.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 09D8C61166; Fri, 20 Aug 2021 20:47:43 +0000 (UTC) Received: from rostedt by gandalf.local.home with local (Exim 4.94.2) (envelope-from ) id 1mHBQU-004qOf-20; Fri, 20 Aug 2021 16:47:42 -0400 Message-ID: <20210820204741.903838783@goodmis.org> User-Agent: quilt/0.66 Date: Fri, 20 Aug 2021 16:46:46 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org, linux-trace-devel@vger.kernel.org Cc: Ingo Molnar , Andrew Morton , Masami Hiramatsu , "Tzvetomir Stoyanov" , Tom Zanussi , Shuah Khan , Shuah Khan , linux-kselftest@vger.kernel.org Subject: [PATCH v9 2/6] selftests/ftrace: Add clear_dynamic_events() to test cases References: <20210820204644.546662591@goodmis.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org From: "Steven Rostedt (VMware)" Add a function to remove all dynamic events from the tracing directory. It requires a loop as some of the dynamic events may depend on others being removed first. Also add a safety that prevents it from looping infinitely due to a bug where an event never gets removed. Link: https://lkml.kernel.org/r/20210819152825.348941368@goodmis.org Cc: Shuah Khan Cc: Shuah Khan Cc: linux-kselftest@vger.kernel.org Acked-by: Masami Hiramatsu Signed-off-by: Steven Rostedt (VMware) --- .../testing/selftests/ftrace/test.d/functions | 22 +++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions index a6fac927ee82..f68d336b961b 100644 --- a/tools/testing/selftests/ftrace/test.d/functions +++ b/tools/testing/selftests/ftrace/test.d/functions @@ -83,6 +83,27 @@ clear_synthetic_events() { # reset all current synthetic events done } +clear_dynamic_events() { # reset all current dynamic events + again=1 + stop=1 + # loop mulitple times as some events require other to be removed first + while [ $again -eq 1 ]; do + stop=$((stop+1)) + # Prevent infinite loops + if [ $stop -gt 10 ]; then + break; + fi + again=2 + grep -v '^#' dynamic_events| + while read line; do + del=`echo $line | sed -e 's/^.\([^ ]*\).*/-\1/'` + if ! echo "$del" >> dynamic_events; then + again=1 + fi + done + done +} + initialize_ftrace() { # 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, @@ -93,6 +114,7 @@ initialize_ftrace() { # Reset ftrace to initial-state reset_events_filter reset_ftrace_filter disable_events + clear_dynamic_events [ -f set_event_pid ] && echo > set_event_pid [ -f set_ftrace_pid ] && echo > set_ftrace_pid [ -f set_ftrace_notrace ] && echo > set_ftrace_notrace From patchwork Fri Aug 20 20:46:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steven Rostedt X-Patchwork-Id: 12450405 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 34AD4C43214 for ; Fri, 20 Aug 2021 20:47:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0F3B36115B for ; Fri, 20 Aug 2021 20:47:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239786AbhHTUsW (ORCPT ); Fri, 20 Aug 2021 16:48:22 -0400 Received: from mail.kernel.org ([198.145.29.99]:36058 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229697AbhHTUsV (ORCPT ); Fri, 20 Aug 2021 16:48:21 -0400 Received: from gandalf.local.home (cpe-66-24-58-225.stny.res.rr.com [66.24.58.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 405DA61183; Fri, 20 Aug 2021 20:47:43 +0000 (UTC) Received: from rostedt by gandalf.local.home with local (Exim 4.94.2) (envelope-from ) id 1mHBQU-004qPD-87; Fri, 20 Aug 2021 16:47:42 -0400 Message-ID: <20210820204742.087177341@goodmis.org> User-Agent: quilt/0.66 Date: Fri, 20 Aug 2021 16:46:47 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org, linux-trace-devel@vger.kernel.org Cc: Ingo Molnar , Andrew Morton , Masami Hiramatsu , "Tzvetomir Stoyanov" , Tom Zanussi , Shuah Khan , Shuah Khan , linux-kselftest@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH v9 3/6] selftests/ftrace: Fix requirement check of README file References: <20210820204644.546662591@goodmis.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org From: "Steven Rostedt (VMware)" The selftest for ftrace checks some features by checking if the README has text that states the feature is supported by that kernel. Unfortunately, this check gives false positives because it many not be checked if there's spaces in the string to check. This is due to the compare between the required variable with the ":README" string stripped, because neither has quotes around them. Cc: Shuah Khan Cc: Shuah Khan Cc: linux-kselftest@vger.kernel.org Cc: stable@vger.kernel.org Fixes: 1b8eec510ba64 ("selftests/ftrace: Support ":README" suffix for requires") Signed-off-by: Steven Rostedt (VMware) Acked-by: Masami Hiramatsu --- tools/testing/selftests/ftrace/test.d/functions | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions index f68d336b961b..000fd05e84b1 100644 --- a/tools/testing/selftests/ftrace/test.d/functions +++ b/tools/testing/selftests/ftrace/test.d/functions @@ -137,7 +137,7 @@ check_requires() { # Check required files and tracers echo "Required tracer $t is not configured." exit_unsupported fi - elif [ $r != $i ]; then + elif [ "$r" != "$i" ]; then if ! grep -Fq "$r" README ; then echo "Required feature pattern \"$r\" is not in README." exit_unsupported From patchwork Fri Aug 20 20:46:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steven Rostedt X-Patchwork-Id: 12450407 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id ECCB1C00143 for ; Fri, 20 Aug 2021 20:47:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C5A096115C for ; Fri, 20 Aug 2021 20:47:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240038AbhHTUsX (ORCPT ); Fri, 20 Aug 2021 16:48:23 -0400 Received: from mail.kernel.org ([198.145.29.99]:36106 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231161AbhHTUsV (ORCPT ); Fri, 20 Aug 2021 16:48:21 -0400 Received: from gandalf.local.home (cpe-66-24-58-225.stny.res.rr.com [66.24.58.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 68C4061181; Fri, 20 Aug 2021 20:47:43 +0000 (UTC) Received: from rostedt by gandalf.local.home with local (Exim 4.94.2) (envelope-from ) id 1mHBQU-004qPl-E5; Fri, 20 Aug 2021 16:47:42 -0400 Message-ID: <20210820204742.274591200@goodmis.org> User-Agent: quilt/0.66 Date: Fri, 20 Aug 2021 16:46:48 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org, linux-trace-devel@vger.kernel.org Cc: Ingo Molnar , Andrew Morton , Masami Hiramatsu , "Tzvetomir Stoyanov" , Tom Zanussi , Shuah Khan , Shuah Khan , linux-kselftest@vger.kernel.org Subject: [PATCH v9 4/6] selftests/ftrace: Add test case to test adding and removing of event probe References: <20210820204644.546662591@goodmis.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org From: "Steven Rostedt (VMware)" Add a test case that adds an event probe, makes sure that it works, and then removes it. Link: https://lore.kernel.org/linux-kselftest/20210819152825.526931866@goodmis.org/ Cc: Shuah Khan Cc: Shuah Khan Cc: linux-kselftest@vger.kernel.org Signed-off-by: Steven Rostedt (VMware) Acked-by: Masami Hiramatsu --- .../test.d/dynevent/add_remove_eprobe.tc | 40 +++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc new file mode 100644 index 000000000000..25a3da4eaa44 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc @@ -0,0 +1,40 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Generic dynamic event - add/remove eprobe events +# requires: dynamic_events events/syscalls/sys_enter_openat "e[:[/]] . []":README + +echo 0 > events/enable + +clear_dynamic_events + +SYSTEM="syscalls" +EVENT="sys_enter_openat" +FIELD="filename" +EPROBE="eprobe_open" + +echo "e:$EPROBE $SYSTEM/$EVENT file=+0(\$filename):ustring" >> dynamic_events + +grep -q "$EPROBE" dynamic_events +test -d events/eprobes/$EPROBE + +echo 1 > events/eprobes/$EPROBE/enable +ls +echo 0 > events/eprobes/$EPROBE/enable + +content=`grep '^ *ls-' trace | grep 'file='` +nocontent=`grep '^ *ls-' trace | grep 'file=' | grep -v -e '"/' -e '"."'` || true + +if [ -z "$content" ]; then + exit_fail +fi + +if [ ! -z "$nocontent" ]; then + exit_fail +fi + +echo "-:$EPROBE" >> dynamic_events + +! grep -q "$EPROBE" dynamic_events +! test -d events/eprobes/$EPROBE + +clear_trace From patchwork Fri Aug 20 20:46:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steven Rostedt X-Patchwork-Id: 12450409 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E6FC1C19F33 for ; Fri, 20 Aug 2021 20:47:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B9ED161163 for ; Fri, 20 Aug 2021 20:47:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240150AbhHTUsY (ORCPT ); Fri, 20 Aug 2021 16:48:24 -0400 Received: from mail.kernel.org ([198.145.29.99]:36232 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231352AbhHTUsW (ORCPT ); Fri, 20 Aug 2021 16:48:22 -0400 Received: from gandalf.local.home (cpe-66-24-58-225.stny.res.rr.com [66.24.58.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 9906B6115B; Fri, 20 Aug 2021 20:47:43 +0000 (UTC) Received: from rostedt by gandalf.local.home with local (Exim 4.94.2) (envelope-from ) id 1mHBQU-004qQJ-K7; Fri, 20 Aug 2021 16:47:42 -0400 Message-ID: <20210820204742.463259900@goodmis.org> User-Agent: quilt/0.66 Date: Fri, 20 Aug 2021 16:46:49 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org, linux-trace-devel@vger.kernel.org Cc: Ingo Molnar , Andrew Morton , Masami Hiramatsu , "Tzvetomir Stoyanov" , Tom Zanussi , Shuah Khan , Shuah Khan , linux-kselftest@vger.kernel.org Subject: [PATCH v9 5/6] selftests/ftrace: Add selftest for testing eprobe events on synthetic events References: <20210820204644.546662591@goodmis.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org From: "Steven Rostedt (VMware)" Add a test to test event probes, by creating a synthetic event across sys_enter_openat and sys_exit_openat that passes the filename pointer from the enter of the system call to the exit, and then add an event probe to the synthetic event to make sure that the file name is seen. Link: https://lore.kernel.org/linux-kselftest/20210819152825.526931866@goodmis.org/ Cc: Shuah Khan Cc: Shuah Khan Cc: linux-kselftest@vger.kernel.org Signed-off-by: Steven Rostedt (VMware) Acked-by: Masami Hiramatsu --- .../inter-event/trigger-synthetic-eprobe.tc | 53 +++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-eprobe.tc diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-eprobe.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-eprobe.tc new file mode 100644 index 000000000000..914fe2e5d030 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-eprobe.tc @@ -0,0 +1,53 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: event trigger - test inter-event histogram trigger eprobe on synthetic event +# requires: dynamic_events synthetic_events events/syscalls/sys_enter_openat/hist "e[:[/]] . []":README + +echo 0 > events/enable + +clear_dynamic_events + +SYSTEM="syscalls" +START="sys_enter_openat" +END="sys_exit_openat" +FIELD="filename" +SYNTH="synth_open" +EPROBE="eprobe_open" + +echo "$SYNTH u64 filename; s64 ret;" > synthetic_events +echo "hist:keys=common_pid:__arg__1=$FIELD" > events/$SYSTEM/$START/trigger +echo "hist:keys=common_pid:filename=\$__arg__1,ret=ret:onmatch($SYSTEM.$START).trace($SYNTH,\$filename,\$ret)" > events/$SYSTEM/$END/trigger + +echo "e:$EPROBE synthetic/$SYNTH file=+0(\$filename):ustring ret=\$ret:s64" >> dynamic_events + +grep -q "$SYNTH" dynamic_events +grep -q "$EPROBE" dynamic_events +test -d events/synthetic/$SYNTH +test -d events/eprobes/$EPROBE + +echo 1 > events/eprobes/$EPROBE/enable +ls +echo 0 > events/eprobes/$EPROBE/enable + +content=`grep '^ *ls-' trace | grep 'file='` +nocontent=`grep '^ *ls-' trace | grep 'file=' | grep -v -e '"/' -e '"."'` || true + +if [ -z "$content" ]; then + exit_fail +fi + +if [ ! -z "$nocontent" ]; then + exit_fail +fi + +echo "-:$EPROBE" >> dynamic_events +echo '!'"hist:keys=common_pid:filename=\$__arg__1,ret=ret:onmatch($SYSTEM.$START).trace($SYNTH,\$filename,\$ret)" > events/$SYSTEM/$END/trigger +echo '!'"hist:keys=common_pid:__arg__1=$FIELD" > events/$SYSTEM/$START/trigger +echo '!'"$SYNTH u64 filename; s64 ret;" >> synthetic_events + +! grep -q "$SYNTH" dynamic_events +! grep -q "$EPROBE" dynamic_events +! test -d events/synthetic/$SYNTH +! test -d events/eprobes/$EPROBE + +clear_trace From patchwork Fri Aug 20 20:46:50 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steven Rostedt X-Patchwork-Id: 12450411 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 12B71C3F6A3 for ; Fri, 20 Aug 2021 20:47:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E3E81611AF for ; Fri, 20 Aug 2021 20:47:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240262AbhHTUsY (ORCPT ); Fri, 20 Aug 2021 16:48:24 -0400 Received: from mail.kernel.org ([198.145.29.99]:36230 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238656AbhHTUsW (ORCPT ); Fri, 20 Aug 2021 16:48:22 -0400 Received: from gandalf.local.home (cpe-66-24-58-225.stny.res.rr.com [66.24.58.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C3673611C4; Fri, 20 Aug 2021 20:47:43 +0000 (UTC) Received: from rostedt by gandalf.local.home with local (Exim 4.94.2) (envelope-from ) id 1mHBQU-004qQr-QH; Fri, 20 Aug 2021 16:47:42 -0400 Message-ID: <20210820204742.653288346@goodmis.org> User-Agent: quilt/0.66 Date: Fri, 20 Aug 2021 16:46:50 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org, linux-trace-devel@vger.kernel.org Cc: Ingo Molnar , Andrew Morton , Masami Hiramatsu , "Tzvetomir Stoyanov" , Tom Zanussi , Shuah Khan , Shuah Khan , linux-kselftest@vger.kernel.org Subject: [PATCH v9 6/6] selftests/ftrace: Add selftest for testing duplicate eprobes and kprobes References: <20210820204644.546662591@goodmis.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org From: "Steven Rostedt (VMware)" Add a selftest that makes sure that eprobes and kprobes can not be created with the same group and name as existing events. Link: https://lore.kernel.org/linux-kselftest/20210819152825.715290342@goodmis.org/ Cc: Shuah Khan Cc: Shuah Khan Cc: linux-kselftest@vger.kernel.org Signed-off-by: Steven Rostedt (VMware) Acked-by: Masami Hiramatsu --- .../ftrace/test.d/dynevent/test_duplicates.tc | 38 +++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc b/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc new file mode 100644 index 000000000000..db522577ff78 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc @@ -0,0 +1,38 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Generic dynamic event - check if duplicate events are caught +# requires: dynamic_events "e[:[/]] . []":README + +echo 0 > events/enable + +HAVE_KPROBES=0 + +if [ -f kprobe_events ]; then + HAVE_KPROBES=1 +fi + +clear_dynamic_events + +# first create dynamic events for eprobes and kprobes. + +echo 'e:egroup/eevent syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events + +# Test eprobe for same eprobe, existing kprobe and existing event +! echo 'e:egroup/eevent syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events +! echo 'e:syscalls/sys_enter_open syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events + +if [ $HAVE_KPROBES -eq 1 ]; then + echo 'p:kgroup/kevent vfs_open file=+0($arg2)' >> dynamic_events + ! echo 'e:kgroup/kevent syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events + +# Test kprobe for same kprobe, existing eprobe and existing event + ! echo 'p:kgroup/kevent vfs_open file=+0($arg2)' >> dynamic_events + ! echo 'p:egroup/eevent vfs_open file=+0($arg2)' >> dynamic_events + ! echo 'p:syscalls/sys_enter_open vfs_open file=+0($arg2)' >> dynamic_events + + echo '-:kgroup/kevent' >> dynamic_events +fi + +echo '-:egroup/eevent' >> dynamic_events + +clear_trace