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Sun, 8 Apr 2018 20:17:06 -0400 From: Sasha Levin To: "stable@vger.kernel.org" , "linux-kernel@vger.kernel.org" CC: Masami Hiramatsu , Shuah Khan , Sasha Levin Subject: [PATCH AUTOSEL for 4.15 020/189] selftest: ftrace: Fix to pick text symbols for kprobes Thread-Topic: [PATCH AUTOSEL for 4.15 020/189] selftest: ftrace: Fix to pick text symbols for kprobes Thread-Index: AQHTz5gUHZEFDASH3U+/kKuFYpUZMA== Date: Mon, 9 Apr 2018 00:17:00 +0000 Message-ID: <20180409001637.162453-20-alexander.levin@microsoft.com> References: <20180409001637.162453-1-alexander.levin@microsoft.com> In-Reply-To: <20180409001637.162453-1-alexander.levin@microsoft.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [52.168.54.252] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;DM5PR2101MB1127;7:+V0h+/ItuSM0cAACqBwX+OUwOM77ILzBf1WB3IwnO/8ZLrg3Gn99SMjwHfAkqgIyzO8GL2DlkBM3zxyh+XlOwUyNqHGnY8iOAdxCSmzgIKgY46jOnzKX+wc6WMJqr+PP8BrKUoyaR6kDMlmyl1XGK0daCxykh0R29uqVmNooyBm46hPXmM3NHs1DICk4TCDeCOt1ayyTOL5JR+TpnvAku7xmOjfinsiAZdbL5Bnqdd649Swae3pc4JtpCkah9YNf;20:DJDbFrfeLCX/JnutbU8s9oAa69p9TB9bJetfQSBrfcMNd5a5lG2VYrS5INe6fuNgd6NyT976PRiMrwhQTJpVUpZQ1XPqvvKQ3ljnVAQ/kjlJ4bcbr1JKjq4QLZR48LZdFx70/shu+1KmJB+oQROQgE+znG+o/vfBpU6yoJHSRcg= x-ms-exchange-antispam-srfa-diagnostics: SOS; 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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: d8a10025-81cf-4b8d-8a56-08d59daf36fe X-MS-Exchange-CrossTenant-originalarrivaltime: 09 Apr 2018 00:17:00.8719 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR2101MB1127 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: From: Masami Hiramatsu [ Upstream commit 5e46664703b364434a2cbda3e6988fc24ae0ced5 ] Fix to pick text symbols for multiple kprobe testcase. kallsyms shows text symbols with " t " or " T " but current testcase picks all symbols including "t", so it picks data symbols if it includes 't' (e.g. "str"). This fixes it to find symbol lines with " t " or " T " (including spaces). Signed-off-by: Masami Hiramatsu Reported-by: Russell King Acked-by: Steven Rostedt (VMware) Signed-off-by: Shuah Khan Signed-off-by: Sasha Levin --- tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.= tc b/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc index bb16cf91f1b5..e297bd7a2e79 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc @@ -12,8 +12,8 @@ case `uname -m` in *) OFFS=3D0;; esac =20 -echo "Setup up to 256 kprobes" -grep t /proc/kallsyms | cut -f3 -d" " | grep -v .*\\..* | \ +echo "Setup up kprobes on first 256 text symbols" +grep -i " t " /proc/kallsyms | cut -f3 -d" " | grep -v .*\\..* | \ head -n 256 | while read i; do echo p ${i}+${OFFS} ; done > kprobe_events = ||: =20 echo 1 > events/kprobes/enable --=20 2.15.1