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Masahiro Yamada3ff291f2014-08-21 11:44:34 +09001#!/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
16set -e
17
18# Set "DEBUG" enavironment variable to show debug messages
19debug () {
20 if [ $DEBUG ]; then
21 echo "$@"
22 fi
23}
24
25# Useful shorthands
26build () {
27 debug $progname: $MAKE -f $srctree/scripts/Makefile.build obj="$@"
28 $MAKE -f $srctree/scripts/Makefile.build obj="$@"
29}
30
31autoconf () {
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.
42run_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 $target
56}
57
58# Parse .config file to detect if CONFIG_SPL, CONFIG_TPL is enabled
59# and returns:
60# "" if neither CONFIG_SPL nor CONFIG_TPL is defined
61# "spl" if CONFIG_SPL is defined but CONFIG_TPL is not
62# "spl tpl" if both CONFIG_SPL and CONFIG_TPL are defined
63get_enabled_subimages() {
64 if [ ! -r "$KCONFIG_CONFIG" ]; then
65 # This should never happen
66 echo "$progname: $KCONFIG_CONFIG not found" >&2
67 exit 1
68 fi
69
70 # CONFIG_SPL=y -> spl
71 # CONFIG_TPL=y -> tpl
Jeroen Hofstee16c429c2014-10-01 17:22:58 +020072 sed -n -e 's/^CONFIG_SPL=y$/spl/p' -e 's/^CONFIG_TPL=y$/tpl/p' \
73 $KCONFIG_CONFIG
Masahiro Yamada3ff291f2014-08-21 11:44:34 +090074}
75
76do_silentoldconfig () {
77 run_make_config silentoldconfig
78 subimages=$(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 $obj/include/autoconf.mk || {
102 rm -f include/config/auto.conf
103 exit 1
104 }
105 done
106}
107
108cleanup_after_defconfig () {
109 rm -f configs/.tmp_defconfig
110 # ignore 'Directory not empty' error
111 # without using non-POSIX option '--ignore-fail-on-non-empty'
112 rmdir arch configs 2>/dev/null || true
113}
114
115# Usage:
116# do_board_defconfig <board>_defconfig
117do_board_defconfig () {
118 defconfig_path=$srctree/configs/$1
119 tmp_defconfig_path=configs/.tmp_defconfig
120
Masahiro Yamada8caaec62014-09-04 22:16:15 +0900121 if [ ! -r $defconfig_path ]; then
122 echo >&2 "***"
York Sun703a08f2014-10-01 08:44:55 -0700123 echo >&2 "*** Can't find default configuration \"configs/$1\"!"
Masahiro Yamada8caaec62014-09-04 22:16:15 +0900124 echo >&2 "***"
125 exit 1
126 fi
127
Masahiro Yamada3ff291f2014-08-21 11:44:34 +0900128 mkdir -p arch configs
129 # defconfig for Normal:
130 # pick lines without prefixes and lines starting '+' prefix
131 # and rip the prefixes off.
132 sed -n -e '/^[+A-Z]*:/!p' -e 's/^+[A-Z]*://p' $defconfig_path \
133 > configs/.tmp_defconfig
134
135 run_make_config .tmp_defconfig || {
136 cleanup_after_defconfig
137 exit 1
138 }
139
140 for img in $(get_enabled_subimages)
141 do
142 symbol=$(echo $img | cut -c 1 | tr '[a-z]' '[A-Z]')
143 # defconfig for SPL, TPL:
144 # pick lines with 'S', 'T' prefix and rip the prefixes off
145 sed -n -e 's/^[+A-Z]*'$symbol'[A-Z]*://p' $defconfig_path \
146 > configs/.tmp_defconfig
147 run_make_config .tmp_defconfig $img || {
148 cleanup_after_defconfig
149 exit 1
150 }
151 done
152
153 cleanup_after_defconfig
154}
155
156do_defconfig () {
157 if [ "$KBUILD_DEFCONFIG" ]; then
158 do_board_defconfig $KBUILD_DEFCONFIG
159 echo "*** Default configuration is based on '$KBUILD_DEFCONFIG'"
160 else
161 run_make_config defconfig
162 fi
163}
164
Ian Campbellcbdd9a92014-10-24 21:20:50 +0100165do_board_felconfig () {
166 do_board_defconfig ${1%%_felconfig}_defconfig
167 if ! grep -q CONFIG_ARCH_SUNXI=y .config || ! grep -q CONFIG_SPL=y .config ; then
168 echo "$progname: Cannot felconfig a non-sunxi or non-SPL platform" >&2
169 exit 1
170 fi
Siarhei Siamashkaf0ce28e2014-12-25 02:34:47 +0200171 sed -i -e 's/\# CONFIG_SPL_FEL is not set/CONFIG_SPL_FEL=y\nCONFIG_UART0_PORT_F=n/g' \
Ian Campbellcbdd9a92014-10-24 21:20:50 +0100172 .config spl/.config
173}
174
Masahiro Yamada3ff291f2014-08-21 11:44:34 +0900175do_savedefconfig () {
176 if [ -r "$KCONFIG_CONFIG" ]; then
177 subimages=$(get_enabled_subimages)
178 else
179 subimages=
180 fi
181
182 run_make_config savedefconfig
183
184 output_lines=
185
186 # -r option is necessay because some string-type configs may include
187 # backslashes as an escape character
188 while read -r line
189 do
Masahiro Yamada8dffe662014-09-04 05:41:32 +0900190 output_lines="$output_lines%$line"
Masahiro Yamada3ff291f2014-08-21 11:44:34 +0900191 done < defconfig
192
193 for img in $subimages
194 do
195 run_make_config savedefconfig $img
196
197 symbol=$(echo $img | cut -c 1 | tr '[a-z]' '[A-Z]')
198 unmatched=
199
200 while read -r line
201 do
202 tmp=
203 match=
204
Masahiro Yamada8dffe662014-09-04 05:41:32 +0900205 # "# CONFIG_FOO is not set" should not be divided.
206 # Use "%" as a separator, instead of a whitespace.
207 # "%" is unlikely to appear in defconfig context.
208 save_IFS=$IFS
209 IFS=%
Masahiro Yamada3ff291f2014-08-21 11:44:34 +0900210 # coalesce common lines together
211 for i in $output_lines
212 do
213 case "$i" in
Masahiro Yamadadee745b2014-09-04 05:41:33 +0900214 [+A-Z]*:$line)
Masahiro Yamada8dffe662014-09-04 05:41:32 +0900215 tmp="$tmp%$unmatched"
Masahiro Yamada3ff291f2014-08-21 11:44:34 +0900216 i=$(echo "$i" | \
Masahiro Yamadadee745b2014-09-04 05:41:33 +0900217 sed -e "s/^\([^:]*\)/\1$symbol/")
Masahiro Yamada8dffe662014-09-04 05:41:32 +0900218 tmp="$tmp%$i"
Masahiro Yamada3ff291f2014-08-21 11:44:34 +0900219 match=1
220 ;;
Masahiro Yamadadee745b2014-09-04 05:41:33 +0900221 $line)
Masahiro Yamada8dffe662014-09-04 05:41:32 +0900222 tmp="$tmp%$unmatched"
223 tmp="$tmp%+$symbol:$i"
Masahiro Yamada3ff291f2014-08-21 11:44:34 +0900224 match=1
225 ;;
226 *)
Masahiro Yamada8dffe662014-09-04 05:41:32 +0900227 tmp="$tmp%$i"
Masahiro Yamada3ff291f2014-08-21 11:44:34 +0900228 ;;
229 esac
230 done
231
Masahiro Yamada8dffe662014-09-04 05:41:32 +0900232 # Restore the default separator for the outer for loop.
233 IFS=$save_IFS
234
Masahiro Yamada3ff291f2014-08-21 11:44:34 +0900235 if [ "$match" ]; then
236 output_lines="$tmp"
237 unmatched=
238 else
Masahiro Yamada8dffe662014-09-04 05:41:32 +0900239 unmatched="$unmatched%$symbol:$line"
Masahiro Yamada3ff291f2014-08-21 11:44:34 +0900240 fi
241 done < defconfig
Masahiro Yamada717a23b2014-09-26 18:42:36 +0900242
243 output_lines="$output_lines%$unmatched"
Masahiro Yamada3ff291f2014-08-21 11:44:34 +0900244 done
245
246 rm -f defconfig
Masahiro Yamada93481b92014-09-04 05:41:31 +0900247 touch defconfig
Masahiro Yamada8dffe662014-09-04 05:41:32 +0900248
249 save_IFS=$IFS
250 IFS=%
251
Masahiro Yamada3ff291f2014-08-21 11:44:34 +0900252 for line in $output_lines
253 do
Masahiro Yamada8dffe662014-09-04 05:41:32 +0900254 case "$line" in
255 "")
256 # do not output blank lines
257 ;;
258 *)
259 echo $line >> defconfig
260 ;;
261 esac
Masahiro Yamada3ff291f2014-08-21 11:44:34 +0900262 done
Masahiro Yamada8dffe662014-09-04 05:41:32 +0900263
264 IFS=$save_IFS
Masahiro Yamada3ff291f2014-08-21 11:44:34 +0900265}
266
Masahiro Yamada11b5db62014-09-10 18:13:10 +0900267# Some sanity checks before running "make <objdir>/<target>",
268# where <objdir> should be either "spl" or "tpl".
269# Doing "make spl/menuconfig" etc. on a non-SPL board makes no sense.
270# It should be allowed only when ".config" exists and "CONFIG_SPL" is enabled.
271#
272# Usage:
273# check_enabled_sumbimage <objdir>/<target> <objdir>
274check_enabled_subimage () {
275
276 case $2 in
277 spl|tpl) ;;
278 *)
279 echo >&2 "***"
280 echo >&2 "*** \"make $1\" is not supported."
281 echo >&2 "***"
282 exit 1
283 ;;
284 esac
285 test -r "$KCONFIG_CONFIG" && get_enabled_subimages | grep -q $2 || {
286 config=CONFIG_$(echo $2 | tr '[a-z]' '[A-Z]')
287
288 echo >&2 "***"
289 echo >&2 "*** Create \"$KCONFIG_CONFIG\" with \"$config\" enabled"
290 echo >&2 "*** before \"make $1\"."
291 echo >&2 "***"
292 exit 1
293 }
294}
295
Masahiro Yamada3ff291f2014-08-21 11:44:34 +0900296# Usage:
297# do_others <objdir>/<target>
298# The field "<objdir>/" is typically empy, "spl/", "tpl/" for Normal, SPL, TPL,
299# respectively.
300# The field "<target>" is a configuration target such as "config",
301# "menuconfig", etc.
302do_others () {
303 target=${1##*/}
304
305 if [ "$target" = "$1" ]; then
306 objdir=
307 else
308 objdir=${1%/*}
Masahiro Yamada11b5db62014-09-10 18:13:10 +0900309 check_enabled_subimage $1 $objdir
Masahiro Yamada0732b2f2014-10-24 01:30:45 +0900310
311 if [ -f "$objdir/$KCONFIG_CONFIG" ]; then
312 timestamp_before=$(stat --printf="%Y" \
313 $objdir/$KCONFIG_CONFIG)
314 fi
Masahiro Yamada3ff291f2014-08-21 11:44:34 +0900315 fi
316
317 run_make_config $target $objdir
Masahiro Yamada0732b2f2014-10-24 01:30:45 +0900318
319 if [ "$timestamp_before" -a -f "$objdir/$KCONFIG_CONFIG" ]; then
320 timestamp_after=$(stat --printf="%Y" $objdir/$KCONFIG_CONFIG)
321
322 if [ "$timestamp_after" -gt "$timestamp_before" ]; then
323 # $objdir/.config has been updated.
324 # touch .config to invoke "make silentoldconfig"
325 touch $KCONFIG_CONFIG
326 fi
327 fi
Masahiro Yamada3ff291f2014-08-21 11:44:34 +0900328}
329
330progname=$(basename $0)
331target=$1
332
333case $target in
334*_defconfig)
335 do_board_defconfig $target;;
Ian Campbellcbdd9a92014-10-24 21:20:50 +0100336*_felconfig)
337 do_board_felconfig $target;;
Masahiro Yamada3ff291f2014-08-21 11:44:34 +0900338*_config)
Masahiro Yamadad1b60d32014-08-28 10:56:55 +0900339 # backward compatibility
Masahiro Yamada3ff291f2014-08-21 11:44:34 +0900340 do_board_defconfig ${target%_config}_defconfig;;
341silentoldconfig)
342 do_silentoldconfig;;
343defconfig)
344 do_defconfig;;
345savedefconfig)
346 do_savedefconfig;;
347*)
348 do_others $target;;
349esac