kconfig: convert Kconfig helper script into a shell script
Commit 51148790 added scripts/multiconfig.py written in Python 2
to adjust Kconfig for U-Boot.
It has been hard for Python 3 users because Python 2 and Python 3
are not compatible with each other.
We are not happy about adding a new host tool dependency
(in this case, Python version dependency) for the core build process.
After some discussion, we decided to use only basic tools.
The script may get a bit more unreadable by shell scripting,
but we believe it is worthwhile.
In addition, this commit revives "<board>_config" target that is
equivalent to "<board>_defconfig" for backwards compatibility.
It is annoying to adjust various projects which use U-Boot.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Suggested-by: Igor Grinberg <grinberg@compulab.co.il>
Tested-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@ti.com>
Cc: Jeroen Hofstee <jeroen@myspectrum.nl>
Cc: Stephen Warren <swarren@nvidia.com>
This commit is contained in:
Masahiro Yamada
committed by
Tom Rini
Tom Rini
parent
fd18a89e7f
commit
3ff291f371
260
scripts/multiconfig.sh
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260
scripts/multiconfig.sh
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#!/bin/sh
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#
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# A wrapper script to adjust Kconfig for U-Boot
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#
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# Instead of touching various parts under the scripts/kconfig/ directory,
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# pushing necessary adjustments into this single script would be better
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# for code maintainance. All the make targets related to the configuration
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# (make %config) should be invoked via this script.
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# See doc/README.kconfig for further information of Kconfig.
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#
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# Copyright (C) 2014, Masahiro Yamada <yamada.m@jp.panasonic.com>
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#
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# SPDX-License-Identifier: GPL-2.0+
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#
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set -e
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# Set "DEBUG" enavironment variable to show debug messages
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debug () {
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if [ $DEBUG ]; then
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echo "$@"
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fi
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}
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# Useful shorthands
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build () {
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debug $progname: $MAKE -f $srctree/scripts/Makefile.build obj="$@"
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$MAKE -f $srctree/scripts/Makefile.build obj="$@"
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}
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autoconf () {
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debug $progname: $MAKE -f $srctree/scripts/Makefile.autoconf obj="$@"
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$MAKE -f $srctree/scripts/Makefile.autoconf obj="$@"
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}
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# Make a configuration target
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# Usage:
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# run_make_config <target> <objdir>
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# <target>: Make target such as "config", "menuconfig", "defconfig", etc.
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# <objdir>: Target directory where the make command is run.
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# Typically "", "spl", "tpl" for Normal, SPL, TPL, respectively.
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run_make_config () {
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target=$1
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objdir=$2
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# Linux expects defconfig files in arch/$(SRCARCH)/configs/ directory,
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# but U-Boot has them in configs/ directory.
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# Give SRCARCH=.. to fake scripts/kconfig/Makefile.
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options="SRCARCH=.. KCONFIG_OBJDIR=$objdir"
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if [ "$objdir" ]; then
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options="$options KCONFIG_CONFIG=$objdir/$KCONFIG_CONFIG"
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mkdir -p $objdir
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fi
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build scripts/kconfig $options $target
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}
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# Parse .config file to detect if CONFIG_SPL, CONFIG_TPL is enabled
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# and returns:
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# "" if neither CONFIG_SPL nor CONFIG_TPL is defined
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# "spl" if CONFIG_SPL is defined but CONFIG_TPL is not
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# "spl tpl" if both CONFIG_SPL and CONFIG_TPL are defined
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get_enabled_subimages() {
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if [ ! -r "$KCONFIG_CONFIG" ]; then
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# This should never happen
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echo "$progname: $KCONFIG_CONFIG not found" >&2
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exit 1
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fi
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# CONFIG_SPL=y -> spl
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# CONFIG_TPL=y -> tpl
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sed -n -e 's/^CONFIG_\(SPL\|TPL\)=y$/\1/p' $KCONFIG_CONFIG | \
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tr '[A-Z]' '[a-z]'
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}
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do_silentoldconfig () {
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run_make_config silentoldconfig
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subimages=$(get_enabled_subimages)
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for obj in $subimages
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do
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mkdir -p $obj/include/config $obj/include/generated
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run_make_config silentoldconfig $obj
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done
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# If the following part fails, include/config/auto.conf should be
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# deleted so "make silentoldconfig" will be re-run on the next build.
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autoconf include include/autoconf.mk include/autoconf.mk.dep || {
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rm -f include/config/auto.conf
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exit 1
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}
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# include/config.h has been updated after "make silentoldconfig".
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# We need to touch include/config/auto.conf so it gets newer
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# than include/config.h.
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# Otherwise, 'make silentoldconfig' would be invoked twice.
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touch include/config/auto.conf
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for obj in $subimages
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do
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autoconf $obj/include $obj/include/autoconf.mk || {
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rm -f include/config/auto.conf
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exit 1
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}
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done
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}
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cleanup_after_defconfig () {
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rm -f configs/.tmp_defconfig
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# ignore 'Directory not empty' error
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# without using non-POSIX option '--ignore-fail-on-non-empty'
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rmdir arch configs 2>/dev/null || true
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}
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# Usage:
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# do_board_defconfig <board>_defconfig
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do_board_defconfig () {
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defconfig_path=$srctree/configs/$1
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tmp_defconfig_path=configs/.tmp_defconfig
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mkdir -p arch configs
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# defconfig for Normal:
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# pick lines without prefixes and lines starting '+' prefix
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# and rip the prefixes off.
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sed -n -e '/^[+A-Z]*:/!p' -e 's/^+[A-Z]*://p' $defconfig_path \
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> configs/.tmp_defconfig
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run_make_config .tmp_defconfig || {
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cleanup_after_defconfig
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exit 1
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}
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for img in $(get_enabled_subimages)
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do
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symbol=$(echo $img | cut -c 1 | tr '[a-z]' '[A-Z]')
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# defconfig for SPL, TPL:
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# pick lines with 'S', 'T' prefix and rip the prefixes off
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sed -n -e 's/^[+A-Z]*'$symbol'[A-Z]*://p' $defconfig_path \
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> configs/.tmp_defconfig
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run_make_config .tmp_defconfig $img || {
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cleanup_after_defconfig
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exit 1
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}
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done
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cleanup_after_defconfig
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}
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do_defconfig () {
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if [ "$KBUILD_DEFCONFIG" ]; then
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do_board_defconfig $KBUILD_DEFCONFIG
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echo "*** Default configuration is based on '$KBUILD_DEFCONFIG'"
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else
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run_make_config defconfig
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fi
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}
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do_savedefconfig () {
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if [ -r "$KCONFIG_CONFIG" ]; then
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subimages=$(get_enabled_subimages)
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else
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subimages=
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fi
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run_make_config savedefconfig
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output_lines=
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# -r option is necessay because some string-type configs may include
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# backslashes as an escape character
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while read -r line
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do
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output_lines="$output_lines $line"
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done < defconfig
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for img in $subimages
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do
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run_make_config savedefconfig $img
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symbol=$(echo $img | cut -c 1 | tr '[a-z]' '[A-Z]')
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unmatched=
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while read -r line
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do
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tmp=
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match=
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# coalesce common lines together
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for i in $output_lines
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do
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case "$i" in
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"[+A-Z]*:$line")
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tmp="$tmp $unmatched"
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i=$(echo "$i" | \
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sed -e "s/^\([^:]\)*/\1$symbol/")
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tmp="$tmp $i"
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match=1
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;;
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"$line")
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tmp="$tmp $unmatched"
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tmp="$tmp +$symbol:$i"
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match=1
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;;
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*)
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tmp="$tmp $i"
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;;
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esac
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done
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if [ "$match" ]; then
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output_lines="$tmp"
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unmatched=
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else
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unmatched="$unmatched $symbol:$line"
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fi
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done < defconfig
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done
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rm -f defconfig
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for line in $output_lines
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do
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echo $line >> defconfig
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done
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}
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# Usage:
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# do_others <objdir>/<target>
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# The field "<objdir>/" is typically empy, "spl/", "tpl/" for Normal, SPL, TPL,
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# respectively.
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# The field "<target>" is a configuration target such as "config",
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# "menuconfig", etc.
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do_others () {
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target=${1##*/}
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if [ "$target" = "$1" ]; then
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objdir=
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else
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objdir=${1%/*}
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fi
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run_make_config $target $objdir
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}
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progname=$(basename $0)
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target=$1
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case $target in
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*_defconfig)
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do_board_defconfig $target;;
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*_config)
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do_board_defconfig ${target%_config}_defconfig;;
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silentoldconfig)
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do_silentoldconfig;;
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defconfig)
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do_defconfig;;
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savedefconfig)
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do_savedefconfig;;
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*)
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do_others $target;;
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esac
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