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Diffstat (limited to 'scripts/multiconfig.sh')
| -rw-r--r-- | scripts/multiconfig.sh | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/scripts/multiconfig.sh b/scripts/multiconfig.sh new file mode 100644 index 0000000000..56cf0c2a5d --- /dev/null +++ b/scripts/multiconfig.sh @@ -0,0 +1,260 @@ +#!/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_\(SPL\|TPL\)=y$/\1/p' $KCONFIG_CONFIG | \ + tr '[A-Z]' '[a-z]' +} + +do_silentoldconfig () { + run_make_config silentoldconfig + subimages=$(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 + + 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_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= + + # 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 $i" + ;; + esac + done + + if [ "$match" ]; then + output_lines="$tmp" + unmatched= + else + unmatched="$unmatched $symbol:$line" + fi + done < defconfig + done + + rm -f defconfig + for line in $output_lines + do + echo $line >> defconfig + done +} + +# Usage: +# do_others <objdir>/<target> +# The field "<objdir>/" is typically empy, "spl/", "tpl/" for Normal, SPL, TPL, +# respectively. +# The field "<target>" is a configuration target such as "config", +# "menuconfig", etc. +do_others () { + target=${1##*/} + + if [ "$target" = "$1" ]; then + objdir= + else + objdir=${1%/*} + fi + + run_make_config $target $objdir +} + +progname=$(basename $0) +target=$1 + +case $target in +*_defconfig) + do_board_defconfig $target;; +*_config) + do_board_defconfig ${target%_config}_defconfig;; +silentoldconfig) + do_silentoldconfig;; +defconfig) + do_defconfig;; +savedefconfig) + do_savedefconfig;; +*) + do_others $target;; +esac |
