diff options
| author |   Masami Hiramatsu <mhiramat@kernel.org> | 2018-08-30 23:20:28 +0900 |
|---|---|---|
| committer |   Shuah Khan (Samsung OSG) <shuah@kernel.org> | 2018-10-24 14:49:35 -0600 |
| commit | 32f6e5da83c7f06db7e4efbdacdbc59c16fd6ecb (patch) | |
| tree | a1293aefb5b767161b1fa5682f0e686e3d7ecd1b /tools/testing/selftests/ftrace | |
| parent | selftests/ftrace: Add kprobe event with $comm argument testcase (diff) | |
| download | linux-dev-32f6e5da83c7f06db7e4efbdacdbc59c16fd6ecb.tar.xz linux-dev-32f6e5da83c7f06db7e4efbdacdbc59c16fd6ecb.zip | |
selftests/ftrace: Add kprobe profile testcase
Add a testcase for testing kprobe_profile interface
which provides per-kprobe event hit/misshit counts.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
Diffstat (limited to 'tools/testing/selftests/ftrace')
| -rw-r--r-- | tools/testing/selftests/ftrace/test.d/kprobe/profile.tc | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/profile.tc b/tools/testing/selftests/ftrace/test.d/kprobe/profile.tc new file mode 100644 index 000000000000..0384b525cdee --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/kprobe/profile.tc @@ -0,0 +1,15 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Kprobe dynamic event - adding and removing + +[ -f kprobe_events ] || exit_unsupported # this is configurable + +! grep -q 'myevent' kprobe_profile +echo p:myevent _do_fork > kprobe_events +grep -q 'myevent[[:space:]]*0[[:space:]]*0$' kprobe_profile +echo 1 > events/kprobes/myevent/enable +( echo "forked" ) +grep -q 'myevent[[:space:]]*[[:digit:]]*[[:space:]]*0$' kprobe_profile +echo 0 > events/kprobes/myevent/enable +echo > kprobe_events +! grep -q 'myevent' kprobe_profile |