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[213.113.33.115]) by smtp.gmail.com with ESMTPSA id k68-v6sm832835ljb.35.2018.11.08.11.44.47 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 08 Nov 2018 11:44:47 -0800 (PST) From: Anders Roxell To: yamada.masahiro@socionext.com, dvhart@infradead.org Cc: arnd@arndb.de, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, Anders Roxell Subject: [PATCH v2] scripts/kconfig/merge_config: don't redefine 'y' to 'm' Date: Thu, 8 Nov 2018 20:44:34 +0100 Message-Id: <20181108194434.16568-1-anders.roxell@linaro.org> X-Mailer: git-send-email 2.19.1 MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In today's merge_config.sh the order of the config fragment files dictates the output of a config option. With this approach we will get different .config files depending on the order of the config fragment files. So doing something like: $ ./merge/kconfig/merge_config.sh selftest.config drm.config Where selftest.config defines DRM=y and drm.config defines DRM=m, the result will be "DRM=m". Rework to add a switch to get builtin '=y' precedence over modules '=m', this will result in "DRM=y". If we do something like this: $ ./merge/kconfig/merge_config.sh -y selftest.config drm.config Suggested-by: Arnd Bergmann Signed-off-by: Anders Roxell --- scripts/kconfig/merge_config.sh | 34 +++++++++++++++++++++++++++------ 1 file changed, 28 insertions(+), 6 deletions(-) -- 2.19.1 diff --git a/scripts/kconfig/merge_config.sh b/scripts/kconfig/merge_config.sh index da66e7742282..fcd18f642fc7 100755 --- a/scripts/kconfig/merge_config.sh +++ b/scripts/kconfig/merge_config.sh @@ -22,6 +22,7 @@ clean_up() { rm -f $TMP_FILE + rm -f $MERGE_FILE exit } trap clean_up HUP INT TERM @@ -32,6 +33,7 @@ usage() { echo " -m only merge the fragments, do not execute the make command" echo " -n use allnoconfig instead of alldefconfig" echo " -r list redundant entries when merging fragments" + echo " -y make builtin have precedence over modules" echo " -O dir to put generated output files. Consider setting \$KCONFIG_CONFIG instead." echo echo "Used prefix: '$CONFIG_PREFIX'. You can redefine it with \$CONFIG_ environment variable." @@ -40,6 +42,8 @@ usage() { RUNMAKE=true ALLTARGET=alldefconfig WARNREDUN=false +BUILTIN=false +BUILTIN_FLAG=false OUTPUT=. CONFIG_PREFIX=${CONFIG_-CONFIG_} @@ -64,6 +68,11 @@ while true; do shift continue ;; + "-y") + BUILTIN=true + shift + continue + ;; "-O") if [ -d $2 ];then OUTPUT=$(echo $2 | sed 's/\/*$//') @@ -105,13 +114,15 @@ MERGE_LIST=$* SED_CONFIG_EXP="s/^\(# \)\{0,1\}\(${CONFIG_PREFIX}[a-zA-Z0-9_]*\)[= ].*/\2/p" TMP_FILE=$(mktemp ./.tmp.config.XXXXXXXXXX) +MERGE_FILE=$(mktemp ./.merge_tmp.config.XXXXXXXXXX) echo "Using $INITFILE as base" cat $INITFILE > $TMP_FILE # Merge files, printing warnings on overridden values -for MERGE_FILE in $MERGE_LIST ; do - echo "Merging $MERGE_FILE" +for ORIG_MERGE_FILE in $MERGE_LIST ; do + cat $ORIG_MERGE_FILE > $MERGE_FILE + echo "Merging $ORIG_MERGE_FILE" if [ ! -r "$MERGE_FILE" ]; then echo "The merge file '$MERGE_FILE' does not exist. Exit." >&2 exit 1 @@ -122,15 +133,26 @@ for MERGE_FILE in $MERGE_LIST ; do grep -q -w $CFG $TMP_FILE || continue PREV_VAL=$(grep -w $CFG $TMP_FILE) NEW_VAL=$(grep -w $CFG $MERGE_FILE) - if [ "x$PREV_VAL" != "x$NEW_VAL" ] ; then - echo Value of $CFG is redefined by fragment $MERGE_FILE: + if [ "$BUILTIN" = "true" ] && [ "${NEW_VAL#CONFIG_*=}" = "m" ] && [ "${PREV_VAL#CONFIG_*=}" = "y" ]; then + echo Previous value: $PREV_VAL + echo New value: $NEW_VAL + echo -y passed, will not demote y to m + echo + BUILTIN_FLAG=true + elif [ "x$PREV_VAL" != "x$NEW_VAL" ] ; then + echo Value of $CFG is redefined by fragment $ORIG_MERGE_FILE: echo Previous value: $PREV_VAL echo New value: $NEW_VAL echo elif [ "$WARNREDUN" = "true" ]; then - echo Value of $CFG is redundant by fragment $MERGE_FILE: + echo Value of $CFG is redundant by fragment $ORIG_MERGE_FILE: + fi + if [ "$BUILTIN_FLAG" = "false" ]; then + sed -i "/$CFG[ =]/d" $TMP_FILE + else + sed -i "/$CFG[ =]/d" $MERGE_FILE + BUILTIN_FLAG=false fi - sed -i "/$CFG[ =]/d" $TMP_FILE done cat $MERGE_FILE >> $TMP_FILE done