On 2020/5/1 21:38, Masami Hiramatsu wrote:
Since the built-in echo has different behavior in POSIX shell
(dash) and bash, we forcibly use /bin/echo -E (not interpret
backslash escapes) by default.
This also fixes some test cases which expects built-in
echo command.
Reported-by: Liu Yiding<yidingx.liu@xxxxxxxxx>
Signed-off-by: Masami Hiramatsu<mhiramat@xxxxxxxxxx>
---
tools/testing/selftests/ftrace/test.d/functions | 3 +++
.../test.d/trigger/trigger-trace-marker-hist.tc | 2 +-
.../trigger-trace-marker-synthetic-kernel.tc | 4 ++++
.../trigger/trigger-trace-marker-synthetic.tc | 4 ++--
4 files changed, 10 insertions(+), 3 deletions(-)
diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions
index 5d4550591ff9..ea59b6ea2c3e 100644
--- a/tools/testing/selftests/ftrace/test.d/functions
+++ b/tools/testing/selftests/ftrace/test.d/functions
@@ -1,3 +1,6 @@
+# Since the built-in echo has different behavior in POSIX shell (dash) and
+# bash, we forcibly use /bin/echo -E (not interpret backslash escapes).
+alias echo="/bin/echo -E"
Hi Masami, Steven
It seems that only kprobe_syntax_errors.tc is impacted by the issue
currently. Is it necessary for all tests to use /bin/echo and could we
just make kprobe_syntax_errors.tc use /bin/echo?
Best Regards,
Xiao Yang
clear_trace() { # reset trace output
echo> trace
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-hist.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-hist.tc
index ab6bedb25736..b3f70f53ee69 100644
--- a/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-hist.tc
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-hist.tc
@@ -30,7 +30,7 @@ fi
echo "Test histogram trace_marker tigger"
-echo 'hist:keys=common_pid'> events/ftrace/print/trigger
+echo 'hist:keys=ip'> events/ftrace/print/trigger
for i in `seq 1 10` ; do echo "hello"> trace_marker; done
grep 'hitcount: *10$' events/ftrace/print/hist> /dev/null || \
fail "hist trigger did not trigger correct times on trace_marker"
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-synthetic-kernel.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-synthetic-kernel.tc
index 18b4d1c2807e..c1625d945f4d 100644
--- a/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-synthetic-kernel.tc
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-synthetic-kernel.tc
@@ -44,6 +44,10 @@ echo 'latency u64 lat'> synthetic_events
echo 'hist:keys=pid:ts0=common_timestamp.usecs'> events/sched/sched_waking/trigger
echo 'hist:keys=common_pid:lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_waking).latency($lat)'> events/ftrace/print/trigger
echo 'hist:keys=common_pid,lat:sort=lat'> events/synthetic/latency/trigger
+
+# We have to use the built-in echo here because waking up pid must be same
+# as echoing pid.
+alias echo=echo
sleep 1
echo "hello"> trace_marker
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-synthetic.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-synthetic.tc
index dd262d6d0db6..23e52c8d71de 100644
--- a/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-synthetic.tc
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-synthetic.tc
@@ -36,8 +36,8 @@ fi
echo "Test histogram trace_marker to trace_marker latency histogram trigger"
echo 'latency u64 lat'> synthetic_events
-echo 'hist:keys=common_pid:ts0=common_timestamp.usecs if buf == "start"'> events/ftrace/print/trigger
-echo 'hist:keys=common_pid:lat=common_timestamp.usecs-$ts0:onmatch(ftrace.print).latency($lat) if buf == "end"'>> events/ftrace/print/trigger
+echo 'hist:keys=ip:ts0=common_timestamp.usecs if buf == "start"'> events/ftrace/print/trigger
+echo 'hist:keys=ip:lat=common_timestamp.usecs-$ts0:onmatch(ftrace.print).latency($lat) if buf == "end"'>> events/ftrace/print/trigger
echo 'hist:keys=common_pid,lat:sort=lat'> events/synthetic/latency/trigger
echo -n "start"> trace_marker
echo -n "end"> trace_marker
.
