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Date:   Thu, 13 Aug 2020 21:01:00 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Masami Hiramatsu <mhiramat@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...hat.com>
Subject: Re: [PATCH 4/6] tools/bootconfig: Add a script to generate ftrace
 shell-command from bootconfig

On Mon, 10 Aug 2020 17:35:11 +0900
Masami Hiramatsu <mhiramat@...nel.org> wrote:


> --- /dev/null
> +++ b/tools/bootconfig/scripts/xbc.sh
> @@ -0,0 +1,56 @@
> +#!/bin/sh
> +# SPDX-License-Identifier: GPL-2.0-only
> +
> +# bootconfig utility functions
> +
> +XBC_TMPFILE=
> +XBC_BASEDIR=`dirname $0`
> +BOOTCONFIG=${BOOTCONFIG:=$XBC_BASEDIR/../bootconfig}
> +if [ ! -x "$BOOTCONFIG" ]; then
> +	BOOTCONFIG=`which bootconfig`
> +	if [ -z "$BOOTCONFIG" ]; then
> +		echo "Erorr: bootconfig command is not found" 1>&2
> +		exit 1
> +	fi
> +fi
> +
> +xbc_cleanup() {
> +	if [ "$XBC_TMPFILE" ]; then

Should the above be:

	if [ -f "$XBC_TMPFILE" ]; then
?


-- Steve

> +		rm -f "$XBC_TMPFILE"
> +	fi
> +}
> +
> +xbc_init() { # bootconfig-file
> +	xbc_cleanup
> +	XBC_TMPFILE=`mktemp bconf-XXXX`
> +	trap xbc_cleanup EXIT TERM
> +
> +	$BOOTCONFIG -l $1 > $XBC_TMPFILE || exit 1
> +}
> +
> +nr_args() { # args
> +	echo $#
> +}
> +
> +xbc_get_val() { # key [maxnum]
> +	if [ "$2" ]; then
> +		MAXOPT="-L $2"
> +	fi
> +	grep "^$1 =" $XBC_TMPFILE | cut -d= -f2- | \
> +		sed -e 's/", /" /g' -e "s/',/' /g" | \
> +		xargs $MAXOPT -n 1 echo
> +}
> +
> +xbc_has_key() { # key
> +	grep -q "^$1 =" $XBC_TMPFILE
> +}
> +
> +xbc_has_branch() { # prefix-key
> +	grep -q "^$1" $XBC_TMPFILE
> +}
> +
> +xbc_subkeys() { # prefix-key depth
> +	__keys=`echo $1 | sed "s/\./ /g"`
> +	__s=`nr_args $__keys`
> +	grep "^$1" $XBC_TMPFILE | cut -d= -f1| cut -d. -f$((__s + 1))-$((__s + $2)) | uniq
> +}

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