From: Xiao Yang <yangx.jy@cn.fujitsu.com>
To: Masami Hiramatsu <mhiramat@kernel.org>,
Steven Rostedt <rostedt@goodmis.org>
Cc: Shuah Khan <shuah@kernel.org>, <linux-kselftest@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
Tom Zanussi <tom.zanussi@linux.intel.com>,
Li Philip <philip.li@intel.com>,
Liu Yiding <yidingx.liu@intel.com>
Subject: Re: [PATCH 3/3] selftests/ftrace: Use /bin/echo instead of built-in echo
Date: Thu, 7 May 2020 14:45:16 +0800 [thread overview]
Message-ID: <5EB3AE7C.5@cn.fujitsu.com> (raw)
In-Reply-To: <158834028054.28357.398159034694277189.stgit@devnote2>
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@intel.com>
> Signed-off-by: Masami Hiramatsu<mhiramat@kernel.org>
> ---
> 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
>
>
>
> .
>
next prev parent reply other threads:[~2020-05-07 6:45 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-01 13:37 [PATCH 0/3] selftests/ftrace: Fix ftracetest testcases for dash, etc Masami Hiramatsu
2020-05-01 13:37 ` [PATCH 1/3] selftests/ftrace: Make XFAIL green color Masami Hiramatsu
2020-05-01 14:15 ` Steven Rostedt
2020-05-01 13:37 ` [PATCH 2/3] selftests/ftrace: Pick only the first kprobe event to test Masami Hiramatsu
2020-05-01 14:17 ` Steven Rostedt
2020-05-01 15:38 ` shuah
2020-05-01 16:20 ` Steven Rostedt
2020-05-01 16:30 ` Shuah Khan
2020-05-02 3:05 ` Masami Hiramatsu
2020-05-01 13:38 ` [PATCH 3/3] selftests/ftrace: Use /bin/echo instead of built-in echo Masami Hiramatsu
2020-05-01 14:19 ` Steven Rostedt
2020-05-02 3:08 ` Masami Hiramatsu
2020-05-07 13:12 ` Steven Rostedt
2020-05-07 15:50 ` Masami Hiramatsu
2020-05-07 17:25 ` Steven Rostedt
2020-05-07 20:32 ` Zanussi, Tom
2020-05-08 7:11 ` Masami Hiramatsu
2020-05-07 6:45 ` Xiao Yang [this message]
2020-05-07 9:15 ` Masami Hiramatsu
2020-05-11 7:22 ` Xiao Yang
2020-05-11 9:27 ` Masami Hiramatsu
2020-05-11 10:34 ` David Laight
2020-05-11 12:01 ` [PATCH] selftests/ftrace: Use /bin/echo for backslash included command Masami Hiramatsu
2020-05-11 12:19 ` Andreas Schwab
2020-05-11 13:36 ` [PATCH v2] selftests/ftrace: Use printf " Masami Hiramatsu
2020-05-11 13:38 ` Masami Hiramatsu
2020-05-11 13:46 ` David Laight
2020-05-11 14:05 ` Masami Hiramatsu
2020-05-11 14:59 ` David Laight
2020-05-11 20:28 ` Steven Rostedt
2020-05-11 13:42 ` Andreas Schwab
2020-05-11 13:58 ` Masami Hiramatsu
2020-05-25 9:59 ` Masami Hiramatsu
2020-05-28 16:24 ` Shuah Khan
2020-05-07 9:22 ` [PATCH 3/3] selftests/ftrace: Use /bin/echo instead of built-in echo Andreas Schwab
2020-05-07 15:52 ` Masami Hiramatsu
2020-05-01 14:21 ` [PATCH 0/3] selftests/ftrace: Fix ftracetest testcases for dash, etc Steven Rostedt
2020-05-01 14:28 ` Shuah Khan
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5EB3AE7C.5@cn.fujitsu.com \
--to=yangx.jy@cn.fujitsu.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-kselftest@vger.kernel.org \
--cc=mhiramat@kernel.org \
--cc=philip.li@intel.com \
--cc=rostedt@goodmis.org \
--cc=shuah@kernel.org \
--cc=tom.zanussi@linux.intel.com \
--cc=yidingx.liu@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox