xref: /openbmc/u-boot/scripts/check-config.sh (revision cf0bcd7d)
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# Use scripts/build-whitelist.sh to generate the list of current ad-hoc
9# CONFIG options (those which are not in Kconfig).
10
11# Usage
12#    check-config.sh <path to u-boot.cfg> <path to whitelist file> <source dir>
13#
14# For example:
15#   scripts/check-config.sh b/chromebook_link/u-boot.cfg kconfig_whitelist.txt .
16
17set -e
18set -u
19
20path="$1"
21whitelist="$2"
22srctree="$3"
23
24# Temporary files
25configs="${path}.configs"
26suspects="${path}.suspects"
27ok="${path}.ok"
28new_adhoc="${path}.adhoc"
29
30export LC_ALL=C
31export LC_COLLATE=C
32
33cat ${path} |sed -n 's/^#define \(CONFIG_[A-Za-z0-9_]*\).*/\1/p' |sort |uniq \
34	>${configs}
35
36comm -23 ${configs} ${whitelist} > ${suspects}
37
38cat `find ${srctree} -name "Kconfig*"` |sed -n \
39	-e 's/^\s*config *\([A-Za-z0-9_]*\).*$/CONFIG_\1/p' \
40	-e 's/^\s*menuconfig \([A-Za-z0-9_]*\).*$/CONFIG_\1/p' \
41	|sort |uniq > ${ok}
42comm -23 ${suspects} ${ok} >${new_adhoc}
43if [ -s ${new_adhoc} ]; then
44	echo >&2 "Error: You must add new CONFIG options using Kconfig"
45	echo >&2 "The following new ad-hoc CONFIG options were detected:"
46	cat >&2 ${new_adhoc}
47	echo >&2
48	echo >&2 "Please add these via Kconfig instead. Find a suitable Kconfig"
49	echo >&2 "file and add a 'config' or 'menuconfig' option."
50	# Don't delete the temporary files in case they are useful
51	exit 1
52else
53	rm ${suspects} ${ok} ${new_adhoc}
54fi
55