linux-kernel - Re: [PATCH 1/3] ftracetest: Use logfile name supported by busybox's mktemp

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Date:	Thu, 06 Nov 2014 12:12:22 +0900
From:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Steven Rostedt <rostedt@...dmis.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Namhyung Kim <namhyung.kim@....com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 1/3] ftracetest: Use logfile name supported by busybox's
 mktemp

(2014/11/06 11:04), Namhyung Kim wrote:
> When I run the ftracetest in a busybox docker container, I saw
> following error.  Make the logfile template to comply with busybox's
> mktemp.  It also keep the logfiles under the logs directory.
> 
>   # /linux/tools/testing/selftests/ftrace/ftracetest
>   === Ftrace unit tests ===
>   mktemp: unrecognized option `--tmpdir=/linux/tools/testing/selftests/ftrace/logs/20141106-003624/'
>   BusyBox v1.22.1 (2014-05-22 23:22:11 UTC) multi-call binary.
> 
>   Usage: mktemp [-dt] [-p DIR] [TEMPLATE]
> 
>   Create a temporary file with name based on TEMPLATE and print its name.
>   TEMPLATE must end with XXXXXX (e.g. [/dir/]nameXXXXXX).
>   Without TEMPLATE, -t tmp.XXXXXX is assumed.
> 
>   	-d	  Make directory, not file
>   	-q	  Fail silently on errors
>   	-t	  Prepend base directory name to TEMPLATE
>   	-p DIR	  Use DIR as a base directory (implies -t)
>   	-u Do not create anything; print a name
> 
>   Base directory is: -p DIR, else $TMPDIR, else /tmp

Oops! good catch :)

> 
>   [1] Basic trace file check/linux/tools/testing/selftests/ftrace/ftracetest: line 244: can't create : nonexistent directory
>   /linux/tools/testing/selftests/ftrace/ftracetest: line 244: can't create : nonexistent directory
> 						  [FAIL]
> 
> Signed-off-by: Namhyung Kim <namhyung@...nel.org>

Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>

Thank you,


> ---
>  tools/testing/selftests/ftrace/ftracetest | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/testing/selftests/ftrace/ftracetest b/tools/testing/selftests/ftrace/ftracetest
> index 8cc01c14262f..93b1bf5eadb5 100755
> --- a/tools/testing/selftests/ftrace/ftracetest
> +++ b/tools/testing/selftests/ftrace/ftracetest
> @@ -218,7 +218,7 @@ trap 'SIG_RESULT=$XFAIL' $SIG_XFAIL
>  # Run one test case
>  run_test() { # testfile
>    local testname=`basename $1`
> -  local testlog=`mktemp --tmpdir=$LOG_DIR ${testname}-XXXXXX.log`
> +  local testlog=`mktemp $LOG_DIR/${testname}-log.XXXXXX`
>    testcase $1
>    echo "execute: "$1 > $testlog
>    SIG_RESULT=0
> 


-- 
Masami HIRAMATSU
Software Platform Research Dept. Linux Technology Research Center
Hitachi, Ltd., Yokohama Research Laboratory
E-mail: masami.hiramatsu.pt@...achi.com


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