xref: /openbmc/u-boot/scripts/check-config.sh (revision b58d3512)
1#!/bin/sh
2# Copyright (c) 2016 Google, Inc
3# Written by Simon Glass <sjg@chromium.org>
4#
5# Check that the u-boot.cfg file provided does not introduce any new
6# ad-hoc CONFIG options
7#
8# You can generate the list of current ad-hoc CONFIG options (those which are
9# not in Kconfig) with this command:
10#
11# export LC_ALL=C LC_COLLATE=C
12# git grep CONFIG_ |tr ' \t' '\n\n' |sed -n 's/^\(CONFIG_[A-Z0-9_]*\).*/\1/p' \
13#	|sort |uniq >scripts/config_whitelist.txt;
14# unset LC_ALL LC_COLLATE
15
16# Usage
17#    check-config.sh <path to u-boot.cfg> <path to whitelist file> <source dir>
18#
19# For example:
20#   scripts/check-config.sh b/chromebook_link/u-boot.cfg kconfig_whitelist.txt .
21
22path="$1"
23whitelist="$2"
24srctree="$3"
25
26# Temporary files
27configs="${path}.configs"
28suspects="${path}.suspects"
29ok="${path}.ok"
30new_adhoc="${path}.adhoc"
31
32export LC_ALL=C
33export LC_COLLATE=C
34
35cat ${path} |sed -n 's/^#define \(CONFIG_[A-Za-z0-9_]*\).*/\1/p' |sort |uniq \
36	>${configs}
37
38comm -23 ${configs} ${whitelist} > ${suspects}
39
40cat `find ${srctree} -name "Kconfig*"` |sed -n \
41	-e 's/^config *\([A-Za-z0-9_]*\).*$/CONFIG_\1/p' \
42	-e 's/^menuconfig \([A-Za-z0-9_]*\).*$/CONFIG_\1/p' |sort |uniq > ${ok}
43comm -23 ${suspects} ${ok} >${new_adhoc}
44if [ -s ${new_adhoc} ]; then
45	echo "Error: You must add new CONFIG options using Kconfig"
46	echo "The following new ad-hoc CONFIG options were detected:"
47	cat ${new_adhoc}
48	echo
49	echo "Please add these via Kconfig instead. Find a suitable Kconfig"
50	echo "file and add a 'config' or 'menuconfig' option."
51	# Don't delete the temporary files in case they are useful
52	exit 1
53else
54	rm ${suspects} ${ok} ${new_adhoc}
55fi
56