scripts/build-whitelist.sh

   1 #!/bin/sh
   2 # Copyright (c) 2016 Google, Inc
   3 # Written by Simon Glass <sjg@chromium.org>
   4 #
   5
   6 # This script creates the configuration whitelist file. This file contains
   7 # all the config options which are allowed to be used outside Kconfig.
   8 # Please do not add things to the whitelist. Instead, add your new option
   9 # to Kconfig.
  10 #
  11 export LC_ALL=C LC_COLLATE=C
  12
  13 # There are two independent greps. The first pulls out the component parts
  14 # of CONFIG_SYS_EXTRA_OPTIONS. An example is:
  15 #
  16 #       SUN7I_GMAC,AHCI,SATAPWR=SUNXI_GPB(8)
  17 #
  18 # We want this to produce:
  19 #       CONFIG_SUN7I_GMAC
  20 #       CONFIG_AHCI
  21 #       CONFIG_SATAPWR
  22 #
  23 # The second looks for the rest of the CONFIG options, but excludes those in
  24 # Kconfig and defconfig files.
  25 #
  26 (
  27 git grep CONFIG_SYS_EXTRA_OPTIONS |sed -n \
  28         's/.*CONFIG_SYS_EXTRA_OPTIONS="\(.*\)"/\1/ p' \
  29         | tr , '\n' \
  30         | sed 's/ *\([A-Za-z0-9_]*\).*/CONFIG_\1/'
  31
  32 git grep CONFIG_ | \
  33         egrep -vi "(Kconfig:|defconfig:|README|\.py|\.pl:)" \
  34         | tr ' \t' '\n\n' \
  35         | sed -n 's/^\(CONFIG_[A-Za-z0-9_]*\).*/\1/p'
  36 ) \
  37         |sort |uniq >scripts/config_whitelist.txt.tmp1;
  38
  39 # Finally, we need a list of the valid Kconfig options to exclude these from
  40 # the whitelist.
  41 cat `find . -name "Kconfig*"` |sed -n \
  42         -e 's/^\s*config *\([A-Za-z0-9_]*\).*$/CONFIG_\1/p' \
  43         -e 's/^\s*menuconfig *\([A-Za-z0-9_]*\).*$/CONFIG_\1/p' \
  44         |sort |uniq >scripts/config_whitelist.txt.tmp2
  45
  46 # Use only the options that are present in the first file but not the second.
  47 comm -23 scripts/config_whitelist.txt.tmp1 scripts/config_whitelist.txt.tmp2 \
  48         |sort |uniq >scripts/config_whitelist.txt.tmp3
  49
  50 # If scripts/config_whitelist.txt already exists, take the intersection of the
  51 # current list and the new one.  We do not want to increase whitelist options.
  52 if [ -r scripts/config_whitelist.txt ]; then
  53         comm -12 scripts/config_whitelist.txt.tmp3 scripts/config_whitelist.txt \
  54                 > scripts/config_whitelist.txt.tmp4
  55         mv scripts/config_whitelist.txt.tmp4 scripts/config_whitelist.txt
  56 else
  57         mv scripts/config_whitelist.txt.tmp3 scripts/config_whitelist.txt
  58 fi
  59
  60 rm scripts/config_whitelist.txt.tmp*
  61
  62 unset LC_ALL LC_COLLATE