| Message ID | 20181112083855.27917-1-anders.roxell@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v3] scripts/kconfig/merge_config: don't redefine 'y' to 'm' | expand |
On Mon, Nov 12, 2018 at 5:39 PM Anders Roxell <anders.roxell@linaro.org> wrote: > > 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 <arnd@arndb.de> > Signed-off-by: Anders Roxell <anders.roxell@linaro.org> > --- Applied to linux-kbuild. Thanks! > scripts/kconfig/merge_config.sh | 37 ++++++++++++++++++++++++++------- > 1 file changed, 29 insertions(+), 8 deletions(-) > > diff --git a/scripts/kconfig/merge_config.sh b/scripts/kconfig/merge_config.sh > index 0ef906499646..9b89791b202c 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 +42,7 @@ usage() { > RUNMAKE=true > ALLTARGET=alldefconfig > WARNREDUN=false > +BUILTIN=false > OUTPUT=. > CONFIG_PREFIX=${CONFIG_-CONFIG_} > > @@ -64,6 +67,11 @@ while true; do > shift > continue > ;; > + "-y") > + BUILTIN=true > + shift > + continue > + ;; > "-O") > if [ -d $2 ];then > OUTPUT=$(echo $2 | sed 's/\/*$//') > @@ -106,32 +114,45 @@ SED_CONFIG_EXP1="s/^\(${CONFIG_PREFIX}[a-zA-Z0-9_]*\)=.*/\1/p" > SED_CONFIG_EXP2="s/^# \(${CONFIG_PREFIX}[a-zA-Z0-9_]*\) is not set$/\1/p" > > TMP_FILE=$(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 $MERGE_FILE" > - if [ ! -r "$MERGE_FILE" ]; then > - echo "The merge file '$MERGE_FILE' does not exist. Exit." >&2 > +for ORIG_MERGE_FILE in $MERGE_LIST ; do > + echo "Merging $ORIG_MERGE_FILE" > + if [ ! -r "$ORIG_MERGE_FILE" ]; then > + echo "The merge file '$ORIG_MERGE_FILE' does not exist. Exit." >&2 > exit 1 > fi > + cat $ORIG_MERGE_FILE > $MERGE_FILE > CFG_LIST=$(sed -n -e "$SED_CONFIG_EXP1" -e "$SED_CONFIG_EXP2" $MERGE_FILE) > > for CFG in $CFG_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 $MERGE_FILE: > + BUILTIN_FLAG=false > + if [ "$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" $MERGE_FILE > fi > - sed -i "/$CFG[ =]/d" $TMP_FILE > done > cat $MERGE_FILE >> $TMP_FILE > done > -- > 2.19.1 >
diff --git a/scripts/kconfig/merge_config.sh b/scripts/kconfig/merge_config.sh index 0ef906499646..9b89791b202c 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 +42,7 @@ usage() { RUNMAKE=true ALLTARGET=alldefconfig WARNREDUN=false +BUILTIN=false OUTPUT=. CONFIG_PREFIX=${CONFIG_-CONFIG_} @@ -64,6 +67,11 @@ while true; do shift continue ;; + "-y") + BUILTIN=true + shift + continue + ;; "-O") if [ -d $2 ];then OUTPUT=$(echo $2 | sed 's/\/*$//') @@ -106,32 +114,45 @@ SED_CONFIG_EXP1="s/^\(${CONFIG_PREFIX}[a-zA-Z0-9_]*\)=.*/\1/p" SED_CONFIG_EXP2="s/^# \(${CONFIG_PREFIX}[a-zA-Z0-9_]*\) is not set$/\1/p" TMP_FILE=$(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 $MERGE_FILE" - if [ ! -r "$MERGE_FILE" ]; then - echo "The merge file '$MERGE_FILE' does not exist. Exit." >&2 +for ORIG_MERGE_FILE in $MERGE_LIST ; do + echo "Merging $ORIG_MERGE_FILE" + if [ ! -r "$ORIG_MERGE_FILE" ]; then + echo "The merge file '$ORIG_MERGE_FILE' does not exist. Exit." >&2 exit 1 fi + cat $ORIG_MERGE_FILE > $MERGE_FILE CFG_LIST=$(sed -n -e "$SED_CONFIG_EXP1" -e "$SED_CONFIG_EXP2" $MERGE_FILE) for CFG in $CFG_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 $MERGE_FILE: + BUILTIN_FLAG=false + if [ "$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" $MERGE_FILE fi - sed -i "/$CFG[ =]/d" $TMP_FILE done cat $MERGE_FILE >> $TMP_FILE done
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 <arnd@arndb.de> Signed-off-by: Anders Roxell <anders.roxell@linaro.org> --- scripts/kconfig/merge_config.sh | 37 ++++++++++++++++++++++++++------- 1 file changed, 29 insertions(+), 8 deletions(-)