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Message-ID: <20180409001637.162453-20-alexander.levin@microsoft.com> Date: Mon, 9 Apr 2018 00:17:00 +0000 From: Sasha Levin <Alexander.Levin@...rosoft.com> To: "stable@...r.kernel.org" <stable@...r.kernel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> CC: Masami Hiramatsu <mhiramat@...nel.org>, Shuah Khan <shuahkh@....samsung.com>, Sasha Levin <Alexander.Levin@...rosoft.com> Subject: [PATCH AUTOSEL for 4.15 020/189] selftest: ftrace: Fix to pick text symbols for kprobes From: Masami Hiramatsu <mhiramat@...nel.org> [ 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 <mhiramat@...nel.org> Reported-by: Russell King <linux@...linux.org.uk> Acked-by: Steven Rostedt (VMware) <rostedt@...dmis.org> Signed-off-by: Shuah Khan <shuahkh@....samsung.com> Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com> --- 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=0;; esac -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 ||: echo 1 > events/kprobes/enable -- 2.15.1
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