u-boot/scripts/build-whitelist.sh
Masahiro Yamada 9608f43c3d build-whitelist: do not add new options to whitelist when update
If somebody adds references to new CONFIG options in source files,
they will be added in the whitelist when we sync it.  (For example,
if we run scripts/build-whitelist.sh against commit 42f7505066,
new options CONFIG_SPL_DFU_SUPPORT and CONFIG_USB_XHCI_UNIPHIER will
appear in the list.)

In order to make steady progress of Kconfig migration, we want to
only decrease whitelist options, but never increase.

So, when we update the whitelist, we should create a temporary list,
then take the intersection of the temporary one and the current one.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-10-07 14:26:30 +00:00

62 lines
2 KiB
Bash
Executable file

#!/bin/sh
# Copyright (c) 2016 Google, Inc
# Written by Simon Glass <sjg@chromium.org>
#
# This script creates the configuration whitelist file. This file contains
# all the config options which are allowed to be used outside Kconfig.
# Please do not add things to the whitelist. Instead, add your new option
# to Kconfig.
#
export LC_ALL=C LC_COLLATE=C
# There are two independent greps. The first pulls out the component parts
# of CONFIG_SYS_EXTRA_OPTIONS. An example is:
#
# SUNXI_GMAC,AHCI,SATAPWR=SUNXI_GPB(8)
#
# We want this to produce:
# CONFIG_SUNXI_GMAC
# CONFIG_AHCI
# CONFIG_SATAPWR
#
# The second looks for the rest of the CONFIG options, but excludes those in
# Kconfig and defconfig files.
#
(
git grep CONFIG_SYS_EXTRA_OPTIONS |sed -n \
's/.*CONFIG_SYS_EXTRA_OPTIONS="\(.*\)"/\1/ p' \
| tr , '\n' \
| sed 's/ *\([A-Za-z0-9_]*\).*/CONFIG_\1/'
git grep CONFIG_ | \
egrep -vi "(Kconfig:|defconfig:|README|\.py|\.pl:)" \
| tr ' \t' '\n\n' \
| sed -n 's/^\(CONFIG_[A-Za-z0-9_]*\).*/\1/p'
) \
|sort |uniq >scripts/config_whitelist.txt.tmp1;
# Finally, we need a list of the valid Kconfig options to exclude these from
# the whitelist.
cat `find . -name "Kconfig*"` |sed -n \
-e 's/^config *\([A-Za-z0-9_]*\).*$/CONFIG_\1/p' \
-e 's/^menuconfig *\([A-Za-z0-9_]*\).*$/CONFIG_\1/p' \
|sort |uniq >scripts/config_whitelist.txt.tmp2
# Use only the options that are present in the first file but not the second.
comm -23 scripts/config_whitelist.txt.tmp1 scripts/config_whitelist.txt.tmp2 \
|sort |uniq >scripts/config_whitelist.txt.tmp3
# If scripts/config_whitelist.txt already exists, take the intersection of the
# current list and the new one. We do not want to increase whitelist options.
if [ -r scripts/config_whitelist.txt ]; then
comm -12 scripts/config_whitelist.txt.tmp3 scripts/config_whitelist.txt \
> scripts/config_whitelist.txt.tmp4
mv scripts/config_whitelist.txt.tmp4 scripts/config_whitelist.txt
else
mv scripts/config_whitelist.txt.tmp3 scripts/config_whitelist.txt
fi
rm scripts/config_whitelist.txt.tmp*
unset LC_ALL LC_COLLATE