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      1 #!/bin/sh
      2 # Copyright (c) 2016 Google, Inc
      3 # Written by Simon Glass <sjg (at] 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 
     17 set -e
     18 set -u
     19 
     20 path="$1"
     21 whitelist="$2"
     22 srctree="$3"
     23 
     24 # Temporary files
     25 configs="${path}.configs"
     26 suspects="${path}.suspects"
     27 ok="${path}.ok"
     28 new_adhoc="${path}.adhoc"
     29 
     30 export LC_ALL=C
     31 export LC_COLLATE=C
     32 
     33 cat ${path} |sed -n 's/^#define \(CONFIG_[A-Za-z0-9_]*\).*/\1/p' |sort |uniq \
     34 	>${configs}
     35 
     36 comm -23 ${configs} ${whitelist} > ${suspects}
     37 
     38 cat `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}
     42 comm -23 ${suspects} ${ok} >${new_adhoc}
     43 if [ -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
     52 else
     53 	rm ${suspects} ${ok} ${new_adhoc}
     54 fi
     55