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tracing/kprobes: Add selftest scripts testing kprobe-tracer as startup test 

Add two selftest scripts which tests kprobe-tracer as the startup
selftest does.
These test cases are testing that the kprobe_event can accept a
kprobe event with $stack related arguments and a kretprobe event
with $retval argument.

Link: http://lkml.kernel.org/p/20141008040307.13415.45145.stgit@kbuild-f20.novalocal

Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Masami Hiramatsu 2014-10-08 04:03:07 +00:00 committed by Steven Rostedt
parent 915de2adb5
commit 89c5497d1f
2 changed files with 31 additions and 0 deletions
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16
tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args.tc Normal file
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@ -0,0 +1,16 @@
#!/bin/sh
# description: Kprobe dynamic event with arguments
[ -f kprobe_events ] || exit_unsupported # this is configurable
echo 0 > events/enable
echo > kprobe_events
echo 'p:testprobe do_fork $stack $stack0 +0($stack)' > kprobe_events
grep testprobe kprobe_events
test -d events/kprobes/testprobe
echo 1 > events/kprobes/testprobe/enable
( echo "forked")
echo 0 > events/kprobes/testprobe/enable
echo "-:testprobe" >> kprobe_events
test -d events/kprobes/testprobe && exit 1 || exit 0

15
tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_args.tc Normal file
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@ -0,0 +1,15 @@
#!/bin/sh
# description: Kretprobe dynamic event with arguments
[ -f kprobe_events ] || exit_unsupported # this is configurable
echo 0 > events/enable
echo > kprobe_events
echo 'r:testprobe2 do_fork $retval' > kprobe_events
grep testprobe2 kprobe_events
test -d events/kprobes/testprobe2
echo 1 > events/kprobes/testprobe2/enable
( echo "forked")
echo 0 > events/kprobes/testprobe2/enable
echo '-:testprobe2' >> kprobe_events
test -d events/kprobes/testprobe2 && exit 1 || exit 0