From c45ab4fb384cb3fc05e0949ca3a6ca4d6f7613fb Mon Sep 17 00:00:00 2001 From: Masami Hiramatsu Date: Sun, 14 Jan 2018 22:50:07 +0900 Subject: [PATCH] selftest: ftrace: Fix to pick text symbols for kprobes [ 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 Signed-off-by: Greg Kroah-Hartman --- .../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 -- 2.20.1