scripts/multiconfig.sh

   1 #!/bin/sh
   2 #
   3 # A wrapper script to adjust Kconfig for U-Boot
   4 #
   5 # Instead of touching various parts under the scripts/kconfig/ directory,
   6 # pushing necessary adjustments into this single script would be better
   7 # for code maintainance.  All the make targets related to the configuration
   8 # (make %config) should be invoked via this script.
   9 # See doc/README.kconfig for further information of Kconfig.
  10 #
  11 # Copyright (C) 2014, Masahiro Yamada <yamada.m@jp.panasonic.com>
  12 #
  13 # SPDX-License-Identifier:      GPL-2.0+
  14 #
  15
  16 set -e
  17
  18 # Set "DEBUG" enavironment variable to show debug messages
  19 debug () {
  20         if [ $DEBUG ]; then
  21                 echo "$@"
  22         fi
  23 }
  24
  25 # Useful shorthands
  26 build () {
  27         debug $progname: $MAKE -f $srctree/scripts/Makefile.build obj="$@"
  28         $MAKE -f $srctree/scripts/Makefile.build obj="$@"
  29 }
  30
  31 autoconf () {
  32         debug $progname: $MAKE -f $srctree/scripts/Makefile.autoconf obj="$@"
  33         $MAKE -f $srctree/scripts/Makefile.autoconf obj="$@"
  34 }
  35
  36 # Make a configuration target
  37 # Usage:
  38 #   run_make_config <target> <objdir>
  39 # <target>: Make target such as "config", "menuconfig", "defconfig", etc.
  40 # <objdir>: Target directory where the make command is run.
  41 #           Typically "", "spl", "tpl" for Normal, SPL, TPL, respectively.
  42 run_make_config () {
  43         target=$1
  44         objdir=$2
  45
  46         # Linux expects defconfig files in arch/$(SRCARCH)/configs/ directory,
  47         # but U-Boot has them in configs/ directory.
  48         # Give SRCARCH=.. to fake scripts/kconfig/Makefile.
  49         options="SRCARCH=.. KCONFIG_OBJDIR=$objdir"
  50         if [ "$objdir" ]; then
  51                 options="$options KCONFIG_CONFIG=$objdir/$KCONFIG_CONFIG"
  52                 mkdir -p $objdir
  53         fi
  54
  55         build scripts/kconfig $options $target
  56 }
  57
  58 # Parse .config file to detect if CONFIG_SPL, CONFIG_TPL is enabled
  59 # and returns:
  60 #   ""        if neither CONFIG_SPL nor CONFIG_TPL is defined
  61 #   "spl"     if CONFIG_SPL is defined but CONFIG_TPL is not
  62 #   "spl tpl" if both CONFIG_SPL and CONFIG_TPL are defined
  63 get_enabled_subimages() {
  64         if [ ! -r "$KCONFIG_CONFIG" ]; then
  65                 # This should never happen
  66                 echo "$progname: $KCONFIG_CONFIG not found" >&2
  67                 exit 1
  68         fi
  69
  70         # CONFIG_SPL=y -> spl
  71         # CONFIG_TPL=y -> tpl
  72         sed -n -e 's/^CONFIG_\(SPL\|TPL\)=y$/\1/p' $KCONFIG_CONFIG | \
  73                                                         tr '[A-Z]' '[a-z]'
  74 }
  75
  76 do_silentoldconfig () {
  77         run_make_config silentoldconfig
  78         subimages=$(get_enabled_subimages)
  79
  80         for obj in $subimages
  81         do
  82                 mkdir -p $obj/include/config $obj/include/generated
  83                 run_make_config silentoldconfig $obj
  84         done
  85
  86         # If the following part fails, include/config/auto.conf should be
  87         # deleted so "make silentoldconfig" will be re-run on the next build.
  88         autoconf include include/autoconf.mk include/autoconf.mk.dep || {
  89                 rm -f include/config/auto.conf
  90                 exit 1
  91         }
  92
  93         # include/config.h has been updated after "make silentoldconfig".
  94         # We need to touch include/config/auto.conf so it gets newer
  95         # than include/config.h.
  96         # Otherwise, 'make silentoldconfig' would be invoked twice.
  97         touch include/config/auto.conf
  98
  99         for obj in $subimages
 100         do
 101                 autoconf $obj/include $obj/include/autoconf.mk || {
 102                         rm -f include/config/auto.conf
 103                         exit 1
 104                 }
 105         done
 106 }
 107
 108 cleanup_after_defconfig () {
 109         rm -f configs/.tmp_defconfig
 110         # ignore 'Directory not empty' error
 111         # without using non-POSIX option '--ignore-fail-on-non-empty'
 112         rmdir arch configs 2>/dev/null || true
 113 }
 114
 115 # Usage:
 116 #  do_board_defconfig <board>_defconfig
 117 do_board_defconfig () {
 118         defconfig_path=$srctree/configs/$1
 119         tmp_defconfig_path=configs/.tmp_defconfig
 120
 121         mkdir -p arch configs
 122         # defconfig for Normal:
 123         #  pick lines without prefixes and lines starting '+' prefix
 124         #  and rip the prefixes off.
 125         sed -n -e '/^[+A-Z]*:/!p' -e 's/^+[A-Z]*://p' $defconfig_path \
 126                                                 > configs/.tmp_defconfig
 127
 128         run_make_config .tmp_defconfig || {
 129                 cleanup_after_defconfig
 130                 exit 1
 131         }
 132
 133         for img in $(get_enabled_subimages)
 134         do
 135                 symbol=$(echo $img | cut -c 1 | tr '[a-z]' '[A-Z]')
 136                 # defconfig for SPL, TPL:
 137                 #   pick lines with 'S', 'T' prefix and rip the prefixes off
 138                 sed -n -e 's/^[+A-Z]*'$symbol'[A-Z]*://p' $defconfig_path \
 139                                                 > configs/.tmp_defconfig
 140                 run_make_config .tmp_defconfig $img || {
 141                         cleanup_after_defconfig
 142                         exit 1
 143                 }
 144         done
 145
 146         cleanup_after_defconfig
 147 }
 148
 149 do_defconfig () {
 150         if [ "$KBUILD_DEFCONFIG" ]; then
 151                 do_board_defconfig $KBUILD_DEFCONFIG
 152                 echo "*** Default configuration is based on '$KBUILD_DEFCONFIG'"
 153         else
 154                 run_make_config defconfig
 155         fi
 156 }
 157
 158 do_savedefconfig () {
 159         if [ -r "$KCONFIG_CONFIG" ]; then
 160                 subimages=$(get_enabled_subimages)
 161         else
 162                 subimages=
 163         fi
 164
 165         run_make_config savedefconfig
 166
 167         output_lines=
 168
 169         # -r option is necessay because some string-type configs may include
 170         # backslashes as an escape character
 171         while read -r line
 172         do
 173                 output_lines="$output_lines $line"
 174         done < defconfig
 175
 176         for img in $subimages
 177         do
 178                 run_make_config savedefconfig $img
 179
 180                 symbol=$(echo $img | cut -c 1 | tr '[a-z]' '[A-Z]')
 181                 unmatched=
 182
 183                 while read -r line
 184                 do
 185                         tmp=
 186                         match=
 187
 188                         # coalesce common lines together
 189                         for i in $output_lines
 190                         do
 191                                 case "$i" in
 192                                 "[+A-Z]*:$line")
 193                                         tmp="$tmp $unmatched"
 194                                         i=$(echo "$i" | \
 195                                             sed -e "s/^\([^:]\)*/\1$symbol/")
 196                                         tmp="$tmp $i"
 197                                         match=1
 198                                         ;;
 199                                 "$line")
 200                                         tmp="$tmp $unmatched"
 201                                         tmp="$tmp +$symbol:$i"
 202                                         match=1
 203                                         ;;
 204                                 *)
 205                                         tmp="$tmp $i"
 206                                         ;;
 207                                 esac
 208                         done
 209
 210                         if [ "$match" ]; then
 211                                 output_lines="$tmp"
 212                                 unmatched=
 213                         else
 214                                 unmatched="$unmatched $symbol:$line"
 215                         fi
 216                 done < defconfig
 217         done
 218
 219         rm -f defconfig
 220         for line in $output_lines
 221         do
 222                 echo $line >> defconfig
 223         done
 224 }
 225
 226 # Usage:
 227 #   do_others <objdir>/<target>
 228 # The field "<objdir>/" is typically empy, "spl/", "tpl/" for Normal, SPL, TPL,
 229 # respectively.
 230 # The field "<target>" is a configuration target such as "config",
 231 # "menuconfig", etc.
 232 do_others () {
 233         target=${1##*/}
 234
 235         if [ "$target" = "$1" ]; then
 236                 objdir=
 237         else
 238                 objdir=${1%/*}
 239         fi
 240
 241         run_make_config $target $objdir
 242 }
 243
 244 progname=$(basename $0)
 245 target=$1
 246
 247 case $target in
 248 *_defconfig)
 249         do_board_defconfig $target;;
 250 *_config)
 251         # backward compatibility
 252         do_board_defconfig ${target%_config}_defconfig;;
 253 silentoldconfig)
 254         do_silentoldconfig;;
 255 defconfig)
 256         do_defconfig;;
 257 savedefconfig)
 258         do_savedefconfig;;
 259 *)
 260         do_others $target;;
 261 esac