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- #!/bin/sh
- #
- # A wrapper script to adjust Kconfig for U-Boot
- #
- # Instead of touching various parts under the scripts/kconfig/ directory,
- # pushing necessary adjustments into this single script would be better
- # for code maintainance. All the make targets related to the configuration
- # (make %config) should be invoked via this script.
- # See doc/README.kconfig for further information of Kconfig.
- #
- # Copyright (C) 2014, Masahiro Yamada <yamada.m@jp.panasonic.com>
- #
- # SPDX-License-Identifier: GPL-2.0+
- #
- set -e
- # Set "DEBUG" enavironment variable to show debug messages
- debug () {
- if [ $DEBUG ]; then
- echo "$@"
- fi
- }
- # Useful shorthands
- build () {
- debug $progname: $MAKE -f $srctree/scripts/Makefile.build obj="$@"
- $MAKE -f $srctree/scripts/Makefile.build obj="$@"
- }
- autoconf () {
- debug $progname: $MAKE -f $srctree/scripts/Makefile.autoconf obj="$@"
- $MAKE -f $srctree/scripts/Makefile.autoconf obj="$@"
- }
- # Make a configuration target
- # Usage:
- # run_make_config <target> <objdir>
- # <target>: Make target such as "config", "menuconfig", "defconfig", etc.
- # <objdir>: Target directory where the make command is run.
- # Typically "", "spl", "tpl" for Normal, SPL, TPL, respectively.
- run_make_config () {
- target=$1
- objdir=$2
- # Linux expects defconfig files in arch/$(SRCARCH)/configs/ directory,
- # but U-Boot has them in configs/ directory.
- # Give SRCARCH=.. to fake scripts/kconfig/Makefile.
- options="SRCARCH=.. KCONFIG_OBJDIR=$objdir"
- if [ "$objdir" ]; then
- options="$options KCONFIG_CONFIG=$objdir/$KCONFIG_CONFIG"
- mkdir -p $objdir
- fi
- build scripts/kconfig $options $target
- }
- # Parse .config file to detect if CONFIG_SPL, CONFIG_TPL is enabled
- # and returns:
- # "" if neither CONFIG_SPL nor CONFIG_TPL is defined
- # "spl" if CONFIG_SPL is defined but CONFIG_TPL is not
- # "spl tpl" if both CONFIG_SPL and CONFIG_TPL are defined
- get_enabled_subimages() {
- if [ ! -r "$KCONFIG_CONFIG" ]; then
- # This should never happen
- echo "$progname: $KCONFIG_CONFIG not found" >&2
- exit 1
- fi
- # CONFIG_SPL=y -> spl
- # CONFIG_TPL=y -> tpl
- sed -n -e 's/^CONFIG_SPL=y$/spl/p' -e 's/^CONFIG_TPL=y$/tpl/p' \
- $KCONFIG_CONFIG
- }
- do_silentoldconfig () {
- run_make_config silentoldconfig
- subimages=$(get_enabled_subimages)
- for obj in $subimages
- do
- mkdir -p $obj/include/config $obj/include/generated
- run_make_config silentoldconfig $obj
- done
- # If the following part fails, include/config/auto.conf should be
- # deleted so "make silentoldconfig" will be re-run on the next build.
- autoconf include include/autoconf.mk include/autoconf.mk.dep || {
- rm -f include/config/auto.conf
- exit 1
- }
- # include/config.h has been updated after "make silentoldconfig".
- # We need to touch include/config/auto.conf so it gets newer
- # than include/config.h.
- # Otherwise, 'make silentoldconfig' would be invoked twice.
- touch include/config/auto.conf
- for obj in $subimages
- do
- autoconf $obj/include $obj/include/autoconf.mk || {
- rm -f include/config/auto.conf
- exit 1
- }
- done
- }
- cleanup_after_defconfig () {
- rm -f configs/.tmp_defconfig
- # ignore 'Directory not empty' error
- # without using non-POSIX option '--ignore-fail-on-non-empty'
- rmdir arch configs 2>/dev/null || true
- }
- # Usage:
- # do_board_defconfig <board>_defconfig
- do_board_defconfig () {
- defconfig_path=$srctree/configs/$1
- tmp_defconfig_path=configs/.tmp_defconfig
- if [ ! -r $defconfig_path ]; then
- echo >&2 "***"
- echo >&2 "*** Can't find default configuration \"configs/$1\"!"
- echo >&2 "***"
- exit 1
- fi
- mkdir -p arch configs
- # defconfig for Normal:
- # pick lines without prefixes and lines starting '+' prefix
- # and rip the prefixes off.
- sed -n -e '/^[+A-Z]*:/!p' -e 's/^+[A-Z]*://p' $defconfig_path \
- > configs/.tmp_defconfig
- run_make_config .tmp_defconfig || {
- cleanup_after_defconfig
- exit 1
- }
- for img in $(get_enabled_subimages)
- do
- symbol=$(echo $img | cut -c 1 | tr '[a-z]' '[A-Z]')
- # defconfig for SPL, TPL:
- # pick lines with 'S', 'T' prefix and rip the prefixes off
- sed -n -e 's/^[+A-Z]*'$symbol'[A-Z]*://p' $defconfig_path \
- > configs/.tmp_defconfig
- run_make_config .tmp_defconfig $img || {
- cleanup_after_defconfig
- exit 1
- }
- done
- cleanup_after_defconfig
- }
- do_defconfig () {
- if [ "$KBUILD_DEFCONFIG" ]; then
- do_board_defconfig $KBUILD_DEFCONFIG
- echo "*** Default configuration is based on '$KBUILD_DEFCONFIG'"
- else
- run_make_config defconfig
- fi
- }
- do_board_felconfig () {
- do_board_defconfig ${1%%_felconfig}_defconfig
- if ! grep -q CONFIG_ARCH_SUNXI=y .config || ! grep -q CONFIG_SPL=y .config ; then
- echo "$progname: Cannot felconfig a non-sunxi or non-SPL platform" >&2
- exit 1
- fi
- sed -i -e 's/\# CONFIG_SPL_FEL is not set/CONFIG_SPL_FEL=y/g' \
- .config spl/.config
- }
- do_savedefconfig () {
- if [ -r "$KCONFIG_CONFIG" ]; then
- subimages=$(get_enabled_subimages)
- else
- subimages=
- fi
- run_make_config savedefconfig
- output_lines=
- # -r option is necessay because some string-type configs may include
- # backslashes as an escape character
- while read -r line
- do
- output_lines="$output_lines%$line"
- done < defconfig
- for img in $subimages
- do
- run_make_config savedefconfig $img
- symbol=$(echo $img | cut -c 1 | tr '[a-z]' '[A-Z]')
- unmatched=
- while read -r line
- do
- tmp=
- match=
- # "# CONFIG_FOO is not set" should not be divided.
- # Use "%" as a separator, instead of a whitespace.
- # "%" is unlikely to appear in defconfig context.
- save_IFS=$IFS
- IFS=%
- # coalesce common lines together
- for i in $output_lines
- do
- case "$i" in
- [+A-Z]*:$line)
- tmp="$tmp%$unmatched"
- i=$(echo "$i" | \
- sed -e "s/^\([^:]*\)/\1$symbol/")
- tmp="$tmp%$i"
- match=1
- ;;
- $line)
- tmp="$tmp%$unmatched"
- tmp="$tmp%+$symbol:$i"
- match=1
- ;;
- *)
- tmp="$tmp%$i"
- ;;
- esac
- done
- # Restore the default separator for the outer for loop.
- IFS=$save_IFS
- if [ "$match" ]; then
- output_lines="$tmp"
- unmatched=
- else
- unmatched="$unmatched%$symbol:$line"
- fi
- done < defconfig
- output_lines="$output_lines%$unmatched"
- done
- rm -f defconfig
- touch defconfig
- save_IFS=$IFS
- IFS=%
- for line in $output_lines
- do
- case "$line" in
- "")
- # do not output blank lines
- ;;
- *)
- echo $line >> defconfig
- ;;
- esac
- done
- IFS=$save_IFS
- }
- # Some sanity checks before running "make <objdir>/<target>",
- # where <objdir> should be either "spl" or "tpl".
- # Doing "make spl/menuconfig" etc. on a non-SPL board makes no sense.
- # It should be allowed only when ".config" exists and "CONFIG_SPL" is enabled.
- #
- # Usage:
- # check_enabled_sumbimage <objdir>/<target> <objdir>
- check_enabled_subimage () {
- case $2 in
- spl|tpl) ;;
- *)
- echo >&2 "***"
- echo >&2 "*** \"make $1\" is not supported."
- echo >&2 "***"
- exit 1
- ;;
- esac
- test -r "$KCONFIG_CONFIG" && get_enabled_subimages | grep -q $2 || {
- config=CONFIG_$(echo $2 | tr '[a-z]' '[A-Z]')
- echo >&2 "***"
- echo >&2 "*** Create \"$KCONFIG_CONFIG\" with \"$config\" enabled"
- echo >&2 "*** before \"make $1\"."
- echo >&2 "***"
- exit 1
- }
- }
- # Usage:
- # do_others <objdir>/<target>
- # The field "<objdir>/" is typically empy, "spl/", "tpl/" for Normal, SPL, TPL,
- # respectively.
- # The field "<target>" is a configuration target such as "config",
- # "menuconfig", etc.
- do_others () {
- target=${1##*/}
- if [ "$target" = "$1" ]; then
- objdir=
- else
- objdir=${1%/*}
- check_enabled_subimage $1 $objdir
- if [ -f "$objdir/$KCONFIG_CONFIG" ]; then
- timestamp_before=$(stat --printf="%Y" \
- $objdir/$KCONFIG_CONFIG)
- fi
- fi
- run_make_config $target $objdir
- if [ "$timestamp_before" -a -f "$objdir/$KCONFIG_CONFIG" ]; then
- timestamp_after=$(stat --printf="%Y" $objdir/$KCONFIG_CONFIG)
- if [ "$timestamp_after" -gt "$timestamp_before" ]; then
- # $objdir/.config has been updated.
- # touch .config to invoke "make silentoldconfig"
- touch $KCONFIG_CONFIG
- fi
- fi
- }
- progname=$(basename $0)
- target=$1
- case $target in
- *_defconfig)
- do_board_defconfig $target;;
- *_felconfig)
- do_board_felconfig $target;;
- *_config)
- # backward compatibility
- do_board_defconfig ${target%_config}_defconfig;;
- silentoldconfig)
- do_silentoldconfig;;
- defconfig)
- do_defconfig;;
- savedefconfig)
- do_savedefconfig;;
- *)
- do_others $target;;
- esac
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