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ftrace/selftests: Update the direct call selftests to test two direct calls

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The register_ftrace_direct() takes a different path if there's already a
direct call registered, but this was not tested in the self tests. Now that
there's a second direct caller test module, we can use this to test not only
one direct caller, but two.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (VMware) 2019-11-08 16:08:12 -05:00
parent 156473a0ff
commit ed9dafebce
2 changed files with 49 additions and 20 deletions
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16
tools/testing/selftests/ftrace/test.d/direct/ftrace-direct.tc
View File

@ -51,3 +51,19 @@ done
echo nop > current_tracer echo nop > current_tracer
rmmod ftrace-direct ||: rmmod ftrace-direct ||:
# Now do the same thing with another direct function registered
echo "Running with another ftrace direct function"
rmmod ftrace-direct-too ||:
modprobe ftrace-direct-too
for t in `cat available_tracers`; do
if [ "$t" != "nop" ]; then
test_tracer $t
fi
done
echo nop > current_tracer
rmmod ftrace-direct ||:
rmmod ftrace-direct-too ||:

53
tools/testing/selftests/ftrace/test.d/direct/kprobe-direct.tc
View File

@ -44,28 +44,41 @@ disable_probe() {
echo 0 > events/kprobes/kwake/enable echo 0 > events/kprobes/kwake/enable
} }
# probe -> direct -> no direct > no probe test_kprobes() {
enable_probe # probe -> direct -> no direct > no probe
start_direct enable_probe
stop_direct start_direct
disable_probe stop_direct
disable_probe
# probe -> direct -> no probe > no direct # probe -> direct -> no probe > no direct
enable_probe enable_probe
start_direct start_direct
disable_probe disable_probe
stop_direct stop_direct
# direct -> probe -> no probe > no direct # direct -> probe -> no probe > no direct
start_direct start_direct
enable_probe enable_probe
disable_probe disable_probe
stop_direct stop_direct
# direct -> probe -> no direct > no noprobe # direct -> probe -> no direct > no noprobe
start_direct start_direct
enable_probe enable_probe
stop_direct stop_direct
disable_probe disable_probe
}
test_kprobes
# Now do this with a second registered direct function
echo "Running with another ftrace direct function"
modprobe ftrace-direct-too
test_kprobes
rmmod ftrace-direct-too
echo > kprobe_events echo > kprobe_events