scripts/check-config.sh

   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
  17 path="$1"
  18 whitelist="$2"
  19 srctree="$3"
  20
  21 # Temporary files
  22 configs="${path}.configs"
  23 suspects="${path}.suspects"
  24 ok="${path}.ok"
  25 new_adhoc="${path}.adhoc"
  26
  27 export LC_ALL=C
  28 export LC_COLLATE=C
  29
  30 cat ${path} |sed -n 's/^#define \(CONFIG_[A-Za-z0-9_]*\).*/\1/p' |sort |uniq \
  31         >${configs}
  32
  33 comm -23 ${configs} ${whitelist} > ${suspects}
  34
  35 cat `find ${srctree} -name "Kconfig*"` |sed -n \
  36         -e 's/^\s*config *\([A-Za-z0-9_]*\).*$/CONFIG_\1/p' \
  37         -e 's/^\s*menuconfig \([A-Za-z0-9_]*\).*$/CONFIG_\1/p' \
  38         |sort |uniq > ${ok}
  39 comm -23 ${suspects} ${ok} >${new_adhoc}
  40 if [ -s ${new_adhoc} ]; then
  41         echo >&2 "Error: You must add new CONFIG options using Kconfig"
  42         echo >&2 "The following new ad-hoc CONFIG options were detected:"
  43         cat >&2 ${new_adhoc}
  44         echo >&2
  45         echo >&2 "Please add these via Kconfig instead. Find a suitable Kconfig"
  46         echo >&2 "file and add a 'config' or 'menuconfig' option."
  47         # Don't delete the temporary files in case they are useful
  48         exit 1
  49 else
  50         rm ${suspects} ${ok} ${new_adhoc}
  51 fi