From: Masami Hiramatsu <mhiramat@kernel.org>
To: Juerg Haefliger <juerg.haefliger@canonical.com>,
Shuah Khan <shuah@kernel.org>
Cc: linux-kernel@vger.kernel.org, rostedt@goodmis.org,
mingo@redhat.com, Juerg Haefliger <juergh@canonical.com>
Subject: Re: [PATCH v2 1/2] selftests/ftrace: Replace echo -e with printf
Date: Fri, 22 Feb 2019 23:58:10 +0900 [thread overview]
Message-ID: <20190222235810.ae69b00c57442b5fb9dd01a8@kernel.org> (raw)
In-Reply-To: <20190222091021.10178-2-juergh@canonical.com>
On Fri, 22 Feb 2019 10:10:20 +0100
Juerg Haefliger <juerg.haefliger@canonical.com> wrote:
> echo -e is not POSIX. Depending on what /bin/sh is, we can get
> incorrect output like:
> $ -e -n [1] Basic trace file check
> $ -e [PASS]
>
> Fix that by using printf instead.
>
> Signed-off-by: Juerg Haefliger <juergh@canonical.com>
Looks good to me.
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Thanks!
> ---
> tools/testing/selftests/ftrace/ftracetest | 9 +++++++--
> 1 file changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/tools/testing/selftests/ftrace/ftracetest b/tools/testing/selftests/ftrace/ftracetest
> index fc755e1b50f1..20c9c0ad8682 100755
> --- a/tools/testing/selftests/ftrace/ftracetest
> +++ b/tools/testing/selftests/ftrace/ftracetest
> @@ -173,8 +173,13 @@ strip_esc() {
> }
>
> prlog() { # messages
> - echo -e "$@"
> - [ "$LOG_FILE" ] && echo -e "$@" | strip_esc >> $LOG_FILE
> + newline="\n"
> + if [ "$1" = "-n" ] ; then
> + newline=
> + shift
> + fi
> + printf "$*$newline"
> + [ "$LOG_FILE" ] && printf "$*$newline" | strip_esc >> $LOG_FILE
> }
> catlog() { #file
> cat $1
> --
> 2.19.1
>
--
Masami Hiramatsu <mhiramat@kernel.org>
next prev parent reply other threads:[~2019-02-22 14:58 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-20 16:13 [PATCH] selftests/ftrace: Make the coloring POSIX compliant Juerg Haefliger
2019-02-20 19:49 ` Steven Rostedt
2019-02-20 20:20 ` Juerg Haefliger
2019-02-20 20:33 ` Adam Borowski
2019-02-22 0:29 ` Masami Hiramatsu
2019-02-22 9:10 ` [PATCH v2 0/2] selftests/ftrace: Make ftracetest " Juerg Haefliger
2019-02-22 9:10 ` [PATCH v2 1/2] selftests/ftrace: Replace echo -e with printf Juerg Haefliger
2019-02-22 14:58 ` Masami Hiramatsu [this message]
2019-02-22 15:58 ` shuah
2019-02-22 9:10 ` [PATCH v2 2/2] selftests/ftrace: Replace \e with \033 Juerg Haefliger
2019-02-22 14:59 ` Masami Hiramatsu
2019-02-22 15:59 ` shuah
2019-02-22 19:03 ` Steven Rostedt
2019-02-22 20:52 ` [RESEND PATCH v2 0/2] selftests/ftrace: Make ftracetest POSIX compliant Juerg Haefliger
2019-02-22 20:52 ` [RESEND PATCH v2 1/2] selftests/ftrace: Replace echo -e with printf Juerg Haefliger
2019-02-22 20:53 ` [RESEND PATCH v2 0/2] selftests/ftrace: Make ftracetest POSIX compliant Juerg Haefliger
2019-02-22 20:53 ` [RESEND PATCH v2 1/2] selftests/ftrace: Replace echo -e with printf Juerg Haefliger
2019-02-22 20:53 ` [RESEND PATCH v2 0/2] selftests/ftrace: Make ftracetest POSIX compliant Juerg Haefliger
2019-02-22 20:53 ` [RESEND PATCH v2 1/2] selftests/ftrace: Replace echo -e with printf Juerg Haefliger
2019-02-22 22:33 ` shuah
2019-02-22 20:53 ` [RESEND PATCH v2 2/2] selftests/ftrace: Replace \e with \033 Juerg Haefliger
2019-02-22 22:46 ` shuah
2019-02-23 12:25 ` Juerg Haefliger
2019-02-25 13:00 ` shuah
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