350 lines
8.1 KiB
Bash
Executable File
350 lines
8.1 KiB
Bash
Executable File
#!/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: $KCONFIG_CONFIG not found" >&2
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exit 1
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fi
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# CONFIG_SPL=y -> spl
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# CONFIG_TPL=y -> tpl
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sed -n -e 's/^CONFIG_SPL=y$/spl/p' -e 's/^CONFIG_TPL=y$/tpl/p' \
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$KCONFIG_CONFIG
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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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if [ ! -r $defconfig_path ]; then
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echo >&2 "***"
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echo >&2 "*** Can't find default configuration \"configs/$1\"!"
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echo >&2 "***"
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exit 1
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fi
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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_board_felconfig () {
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do_board_defconfig ${1%%_felconfig}_defconfig
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if ! grep -q CONFIG_ARCH_SUNXI=y .config || ! grep -q CONFIG_SPL=y .config ; then
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echo "$progname: Cannot felconfig a non-sunxi or non-SPL platform" >&2
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exit 1
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fi
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sed -i -e 's/\# CONFIG_SPL_FEL is not set/CONFIG_SPL_FEL=y\nCONFIG_UART0_PORT_F=n/g' \
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.config spl/.config
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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 $img | cut -c 1 | tr '[a-z]' '[A-Z]')
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unmatched=
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while read -r line
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do
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tmp=
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match=
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# "# CONFIG_FOO is not set" should not be divided.
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# Use "%" as a separator, instead of a whitespace.
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# "%" is unlikely to appear in defconfig context.
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save_IFS=$IFS
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IFS=%
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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%$i"
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;;
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esac
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done
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# Restore the default separator for the outer for loop.
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IFS=$save_IFS
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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:$line"
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fi
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done < defconfig
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output_lines="$output_lines%$unmatched"
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done
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rm -f defconfig
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touch defconfig
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save_IFS=$IFS
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IFS=%
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for line in $output_lines
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do
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case "$line" in
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"")
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# do not output blank lines
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;;
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*)
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echo $line >> defconfig
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;;
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esac
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done
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IFS=$save_IFS
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}
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# Some sanity checks before running "make <objdir>/<target>",
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# where <objdir> should be either "spl" or "tpl".
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# Doing "make spl/menuconfig" etc. on a non-SPL board makes no sense.
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# It should be allowed only when ".config" exists and "CONFIG_SPL" is enabled.
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#
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# Usage:
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# check_enabled_sumbimage <objdir>/<target> <objdir>
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check_enabled_subimage () {
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case $2 in
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spl|tpl) ;;
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*)
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echo >&2 "***"
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echo >&2 "*** \"make $1\" is not supported."
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echo >&2 "***"
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exit 1
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;;
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esac
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test -r "$KCONFIG_CONFIG" && get_enabled_subimages | grep -q $2 || {
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config=CONFIG_$(echo $2 | tr '[a-z]' '[A-Z]')
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echo >&2 "***"
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echo >&2 "*** Create \"$KCONFIG_CONFIG\" with \"$config\" enabled"
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echo >&2 "*** before \"make $1\"."
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echo >&2 "***"
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exit 1
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}
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}
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# Usage:
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# do_others <objdir>/<target>
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# The field "<objdir>/" is typically empy, "spl/", "tpl/" for Normal, SPL, TPL,
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# respectively.
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# The field "<target>" is a configuration target such as "config",
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# "menuconfig", etc.
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do_others () {
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target=${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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check_enabled_subimage $1 $objdir
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if [ -f "$objdir/$KCONFIG_CONFIG" ]; then
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timestamp_before=$(stat --printf="%Y" \
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$objdir/$KCONFIG_CONFIG)
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fi
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fi
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run_make_config $target $objdir
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if [ "$timestamp_before" -a -f "$objdir/$KCONFIG_CONFIG" ]; then
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timestamp_after=$(stat --printf="%Y" $objdir/$KCONFIG_CONFIG)
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if [ "$timestamp_after" -gt "$timestamp_before" ]; then
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# $objdir/.config has been updated.
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# touch .config to invoke "make silentoldconfig"
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touch $KCONFIG_CONFIG
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fi
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fi
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}
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progname=$(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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*_felconfig)
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do_board_felconfig $target;;
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*_config)
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# backward compatibility
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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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