From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELvYXhis6w5tUzqb/yabdZQ048b8eY7h8DGZoCkYWaNOKLwXzqmpAmyxlslDDBn0uH0fyu1f ARC-Seal: i=1; a=rsa-sha256; t=1520498724; cv=none; d=google.com; s=arc-20160816; b=o8+UiR5Wlut7nJLfjarUQu0CJnCXTb+769RrmDDol05D3uV5jGfYhi8KSX7tQQfoTM ymgszMdQaAsXJrH6b5/a2FKLXUZ+FYDK5yRoF8hDv/EjoCxU4zx7Csx4G3B4EFNeZS5y Q5jaC+zKWINhbwUyBVacVXsPlDblhQxe8r2+E4bL1AhMvfC1UKVpj09QZKxj+eK1J8s9 cCFq0Rq+/bGWeWOdeMrLAHE1Hnik2j6F2dhaf53lokirPYIDys5fZQ4Yx3D7zaNBpJ8H c5NzcrYFP7cgwgklfF+/U9NK7uUJiEx/krPMnUnEyErPQLLpmsQ7TzAA98FTloGcVfa2 MgPA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :user-agent:references:in-reply-to:message-id:date:subject:cc:to :from:dmarc-filter:arc-authentication-results; bh=My0Y7cjct5gMcofuRdT/TMuxdaCuuwcOCok22TdhQvA=; b=mfdPkbfokFGEbf8jJ82/P0Sm3dtP94CkMlXSG6C9dClGkywytw02Km9+dZMdZ1k2uB I1gyJaDiteFMATuS9e5ZNR5LNyUnLD3UbGZs1nY0ssS8knRgGUiTV2SFtHJXMtz/OKCl Iwa2g+4MfIpt1Os73eLWDxinfzHDrb6iOPPsVeZ6S7o4aWnTX5PSazEKN6eryqjofK3l XBnrP89OL1OmYACsgxsME2wnMyn1+TDs6VNWbXEAk8cv6d85o+uVXT0LlHdKCWBAS3en 2fdKdei0sOx3g36K0hhf6PXQoCEzD9Nebc5hBZYFPAiTE4fmBThBsWbgdvuFVi1qa+nk vKSA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kselftest-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kselftest-owner@vger.kernel.org Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kselftest-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kselftest-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755406AbeCHIpA (ORCPT ); Thu, 8 Mar 2018 03:45:00 -0500 Received: from mail.kernel.org ([198.145.29.99]:49988 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755382AbeCHIo6 (ORCPT ); Thu, 8 Mar 2018 03:44:58 -0500 DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A49A82133D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=mhiramat@kernel.org From: Masami Hiramatsu To: Steven Rostedt , linux-kernel@vger.kernel.org Cc: mhiramat@kernel.org, Ingo Molnar , Namhyung Kim , Tom Zanussi , Arnaldo Carvalho de Melo , linux-trace-users@vger.kernel.org, linux-kselftest@vger.kernel.org, shuah@kernel.org Subject: [PATCH v5 02/19] selftests: ftrace: Add probe event argument syntax testcase Date: Thu, 8 Mar 2018 17:44:34 +0900 Message-Id: <152049867449.7289.11414429946367300873.stgit@devbox> X-Mailer: git-send-email 2.13.6 In-Reply-To: <152049860385.7289.14079393589900496424.stgit@devbox> References: <152049860385.7289.14079393589900496424.stgit@devbox> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kselftest-owner@vger.kernel.org X-Mailing-List: linux-kselftest@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1594358470389592130?= X-GMAIL-MSGID: =?utf-8?q?1594358470389592130?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: Add a testcase for probe event argument syntax which ensures the kprobe_events interface correctly parses given event arguments. Signed-off-by: Masami Hiramatsu --- .../ftrace/test.d/kprobe/kprobe_args_syntax.tc | 97 ++++++++++++++++++++ 1 file changed, 97 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc new file mode 100644 index 000000000000..231bcd2c4eb5 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc @@ -0,0 +1,97 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Kprobe event argument syntax + +[ -f kprobe_events ] || exit_unsupported # this is configurable + +grep "x8/16/32/64" README > /dev/null || exit_unsupported # version issue + +echo 0 > events/enable +echo > kprobe_events + +PROBEFUNC="vfs_read" +GOODREG= +BADREG= +GOODSYM="_sdata" +if ! grep -qw ${GOODSYM} /proc/kallsyms ; then + GOODSYM=$PROBEFUNC +fi +BADSYM="deaqswdefr" +SYMADDR=0x`grep -w ${GOODSYM} /proc/kallsyms | cut -f 1 -d " "` +GOODTYPE="x16" +BADTYPE="y16" + +case `uname -m` in +x86_64|i[3456]86) + GOODREG=%ax + BADREG=%ex +;; +aarch64) + GOODREG=%x0 + BADREG=%ax +;; +arm*) + GOODREG=%r0 + BADREG=%ax +;; +esac + +test_goodarg() # Good-args +{ + while [ "$1" ]; do + echo "p ${PROBEFUNC} $1" > kprobe_events + shift 1 + done; +} + +test_badarg() # Bad-args +{ + while [ "$1" ]; do + ! echo "p ${PROBEFUNC} $1" > kprobe_events + shift 1 + done; +} + +echo > kprobe_events + +: "Register access" +test_goodarg ${GOODREG} +test_badarg ${BADREG} + +: "Symbol access" +test_goodarg "@${GOODSYM}" "@${SYMADDR}" "@${GOODSYM}+10" "@${GOODSYM}-10" +test_badarg "@" "@${BADSYM}" "@${GOODSYM}*10" "@${GOODSYM}/10" \ + "@${GOODSYM}%10" "@${GOODSYM}&10" "@${GOODSYM}|10" + +: "Stack access" +test_goodarg "\$stack" "\$stack0" "\$stack1" +test_badarg "\$stackp" "\$stack0+10" "\$stack1-10" + +: "Retval access" +echo "r ${PROBEFUNC} \$retval" > kprobe_events +! echo "p ${PROBEFUNC} \$retval" > kprobe_events + +: "Comm access" +test_goodarg "\$comm" + +: "Indirect memory access" +test_goodarg "+0(${GOODREG})" "-0(${GOODREG})" "+10(\$stack)" \ + "+0(\$stack1)" "+10(@${GOODSYM}-10)" "+0(+10(+20(\$stack)))" +test_badarg "+(${GOODREG})" "(${GOODREG}+10)" "-(${GOODREG})" "(${GOODREG})" \ + "+10(\$comm)" "+0(${GOODREG})+10" + +: "Name assignment" +test_goodarg "varname=${GOODREG}" +test_badarg "varname=varname2=${GOODREG}" + +: "Type syntax" +test_goodarg "${GOODREG}:${GOODTYPE}" +test_badarg "${GOODREG}::${GOODTYPE}" "${GOODREG}:${BADTYPE}" \ + "${GOODTYPE}:${GOODREG}" + +: "Combination check" + +test_goodarg "\$comm:string" "+0(\$stack):string" +test_badarg "\$comm:x64" "\$stack:string" "${GOODREG}:string" + +echo > kprobe_events From mboxrd@z Thu Jan 1 00:00:00 1970 From: mhiramat at kernel.org (Masami Hiramatsu) Date: Thu, 8 Mar 2018 17:44:34 +0900 Subject: [PATCH v5 02/19] selftests: ftrace: Add probe event argument syntax testcase In-Reply-To: <152049860385.7289.14079393589900496424.stgit@devbox> References: <152049860385.7289.14079393589900496424.stgit@devbox> Message-ID: <152049867449.7289.11414429946367300873.stgit@devbox> Add a testcase for probe event argument syntax which ensures the kprobe_events interface correctly parses given event arguments. Signed-off-by: Masami Hiramatsu --- .../ftrace/test.d/kprobe/kprobe_args_syntax.tc | 97 ++++++++++++++++++++ 1 file changed, 97 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc new file mode 100644 index 000000000000..231bcd2c4eb5 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc @@ -0,0 +1,97 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Kprobe event argument syntax + +[ -f kprobe_events ] || exit_unsupported # this is configurable + +grep "x8/16/32/64" README > /dev/null || exit_unsupported # version issue + +echo 0 > events/enable +echo > kprobe_events + +PROBEFUNC="vfs_read" +GOODREG= +BADREG= +GOODSYM="_sdata" +if ! grep -qw ${GOODSYM} /proc/kallsyms ; then + GOODSYM=$PROBEFUNC +fi +BADSYM="deaqswdefr" +SYMADDR=0x`grep -w ${GOODSYM} /proc/kallsyms | cut -f 1 -d " "` +GOODTYPE="x16" +BADTYPE="y16" + +case `uname -m` in +x86_64|i[3456]86) + GOODREG=%ax + BADREG=%ex +;; +aarch64) + GOODREG=%x0 + BADREG=%ax +;; +arm*) + GOODREG=%r0 + BADREG=%ax +;; +esac + +test_goodarg() # Good-args +{ + while [ "$1" ]; do + echo "p ${PROBEFUNC} $1" > kprobe_events + shift 1 + done; +} + +test_badarg() # Bad-args +{ + while [ "$1" ]; do + ! echo "p ${PROBEFUNC} $1" > kprobe_events + shift 1 + done; +} + +echo > kprobe_events + +: "Register access" +test_goodarg ${GOODREG} +test_badarg ${BADREG} + +: "Symbol access" +test_goodarg "@${GOODSYM}" "@${SYMADDR}" "@${GOODSYM}+10" "@${GOODSYM}-10" +test_badarg "@" "@${BADSYM}" "@${GOODSYM}*10" "@${GOODSYM}/10" \ + "@${GOODSYM}%10" "@${GOODSYM}&10" "@${GOODSYM}|10" + +: "Stack access" +test_goodarg "\$stack" "\$stack0" "\$stack1" +test_badarg "\$stackp" "\$stack0+10" "\$stack1-10" + +: "Retval access" +echo "r ${PROBEFUNC} \$retval" > kprobe_events +! echo "p ${PROBEFUNC} \$retval" > kprobe_events + +: "Comm access" +test_goodarg "\$comm" + +: "Indirect memory access" +test_goodarg "+0(${GOODREG})" "-0(${GOODREG})" "+10(\$stack)" \ + "+0(\$stack1)" "+10(@${GOODSYM}-10)" "+0(+10(+20(\$stack)))" +test_badarg "+(${GOODREG})" "(${GOODREG}+10)" "-(${GOODREG})" "(${GOODREG})" \ + "+10(\$comm)" "+0(${GOODREG})+10" + +: "Name assignment" +test_goodarg "varname=${GOODREG}" +test_badarg "varname=varname2=${GOODREG}" + +: "Type syntax" +test_goodarg "${GOODREG}:${GOODTYPE}" +test_badarg "${GOODREG}::${GOODTYPE}" "${GOODREG}:${BADTYPE}" \ + "${GOODTYPE}:${GOODREG}" + +: "Combination check" + +test_goodarg "\$comm:string" "+0(\$stack):string" +test_badarg "\$comm:x64" "\$stack:string" "${GOODREG}:string" + +echo > kprobe_events -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html From mboxrd@z Thu Jan 1 00:00:00 1970 From: mhiramat@kernel.org (Masami Hiramatsu) Date: Thu, 8 Mar 2018 17:44:34 +0900 Subject: [PATCH v5 02/19] selftests: ftrace: Add probe event argument syntax testcase In-Reply-To: <152049860385.7289.14079393589900496424.stgit@devbox> References: <152049860385.7289.14079393589900496424.stgit@devbox> Message-ID: <152049867449.7289.11414429946367300873.stgit@devbox> Content-Type: text/plain; charset="UTF-8" Message-ID: <20180308084434.d2wX1dAfuIxd7zTipT2VC2l0qddVSLPy3NrWN1ucs5s@z> Add a testcase for probe event argument syntax which ensures the kprobe_events interface correctly parses given event arguments. Signed-off-by: Masami Hiramatsu --- .../ftrace/test.d/kprobe/kprobe_args_syntax.tc | 97 ++++++++++++++++++++ 1 file changed, 97 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc new file mode 100644 index 000000000000..231bcd2c4eb5 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc @@ -0,0 +1,97 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Kprobe event argument syntax + +[ -f kprobe_events ] || exit_unsupported # this is configurable + +grep "x8/16/32/64" README > /dev/null || exit_unsupported # version issue + +echo 0 > events/enable +echo > kprobe_events + +PROBEFUNC="vfs_read" +GOODREG= +BADREG= +GOODSYM="_sdata" +if ! grep -qw ${GOODSYM} /proc/kallsyms ; then + GOODSYM=$PROBEFUNC +fi +BADSYM="deaqswdefr" +SYMADDR=0x`grep -w ${GOODSYM} /proc/kallsyms | cut -f 1 -d " "` +GOODTYPE="x16" +BADTYPE="y16" + +case `uname -m` in +x86_64|i[3456]86) + GOODREG=%ax + BADREG=%ex +;; +aarch64) + GOODREG=%x0 + BADREG=%ax +;; +arm*) + GOODREG=%r0 + BADREG=%ax +;; +esac + +test_goodarg() # Good-args +{ + while [ "$1" ]; do + echo "p ${PROBEFUNC} $1" > kprobe_events + shift 1 + done; +} + +test_badarg() # Bad-args +{ + while [ "$1" ]; do + ! echo "p ${PROBEFUNC} $1" > kprobe_events + shift 1 + done; +} + +echo > kprobe_events + +: "Register access" +test_goodarg ${GOODREG} +test_badarg ${BADREG} + +: "Symbol access" +test_goodarg "@${GOODSYM}" "@${SYMADDR}" "@${GOODSYM}+10" "@${GOODSYM}-10" +test_badarg "@" "@${BADSYM}" "@${GOODSYM}*10" "@${GOODSYM}/10" \ + "@${GOODSYM}%10" "@${GOODSYM}&10" "@${GOODSYM}|10" + +: "Stack access" +test_goodarg "\$stack" "\$stack0" "\$stack1" +test_badarg "\$stackp" "\$stack0+10" "\$stack1-10" + +: "Retval access" +echo "r ${PROBEFUNC} \$retval" > kprobe_events +! echo "p ${PROBEFUNC} \$retval" > kprobe_events + +: "Comm access" +test_goodarg "\$comm" + +: "Indirect memory access" +test_goodarg "+0(${GOODREG})" "-0(${GOODREG})" "+10(\$stack)" \ + "+0(\$stack1)" "+10(@${GOODSYM}-10)" "+0(+10(+20(\$stack)))" +test_badarg "+(${GOODREG})" "(${GOODREG}+10)" "-(${GOODREG})" "(${GOODREG})" \ + "+10(\$comm)" "+0(${GOODREG})+10" + +: "Name assignment" +test_goodarg "varname=${GOODREG}" +test_badarg "varname=varname2=${GOODREG}" + +: "Type syntax" +test_goodarg "${GOODREG}:${GOODTYPE}" +test_badarg "${GOODREG}::${GOODTYPE}" "${GOODREG}:${BADTYPE}" \ + "${GOODTYPE}:${GOODREG}" + +: "Combination check" + +test_goodarg "\$comm:string" "+0(\$stack):string" +test_badarg "\$comm:x64" "\$stack:string" "${GOODREG}:string" + +echo > kprobe_events -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html