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tracing/kprobes: Add selftest scripts testing kprobe-tracer as startu…
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…p 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>
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Masami Hiramatsu authored and Steven Rostedt committed Oct 8, 2014
1 parent 915de2a commit 89c5497
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16 changes: 16 additions & 0 deletions tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args.tc
Original file line number Diff line number Diff line change
@@ -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 changes: 15 additions & 0 deletions tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_args.tc
Original file line number Diff line number Diff line change
@@ -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

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