merge_config.sh: Add option to specify output dir

Provide a -O option to specify dir to put generated .config
Then merge_config.sh does not need to be copied to target dir,
for easy re-usage in other script

Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Tested-by: Jon Medhurst (Tixy) <tixy@linaro.org>
Acked-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>

1 files changed, 16 insertions, 4 deletions

diff --git a/scripts/kconfig/merge_config.sh b/scripts/kconfig/merge_config.sh
index 974d5cb7e30a..05274fccb88e 100755
--- a/scripts/kconfig/merge_config.sh
+++ b/scripts/kconfig/merge_config.sh
@@ -32,11 +32,13 @@ 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 "  -O    dir to put generated output files"
 }
 
 MAKE=true
 ALLTARGET=alldefconfig
 WARNREDUN=false
+OUTPUT=.
 
 while true; do
         case $1 in
@@ -59,6 +61,16 @@ while true; do
                 shift
                 continue
                 ;;
+        "-O")
+                if [ -d $2 ];then
+                        OUTPUT=$(echo $2 | sed 's/\/*$//')
+                else
+                        echo "output directory $2 does not exist" 1>&2
+                        exit 1
+                fi
+                shift 2
+                continue
+                ;;
         *)
                 break
                 ;;
@@ -100,9 +112,9 @@ for MERGE_FILE in $MERGE_LIST ; do
 done
 
 if [ "$MAKE" = "false" ]; then
-        cp $TMP_FILE .config
+        cp $TMP_FILE $OUTPUT/.config
         echo "#"
-        echo "# merged configuration written to .config (needs make)"
+        echo "# merged configuration written to $OUTPUT/.config (needs make)"
         echo "#"
         clean_up
         exit
@@ -111,14 +123,14 @@ fi
 # Use the merged file as the starting point for:
 # alldefconfig: Fills in any missing symbols with Kconfig default
 # allnoconfig: Fills in any missing symbols with # CONFIG_* is not set
-make KCONFIG_ALLCONFIG=$TMP_FILE $ALLTARGET
+make KCONFIG_ALLCONFIG=$TMP_FILE O=$OUTPUT $ALLTARGET
 
 
 # Check all specified config values took (might have missed-dependency issues)
 for CFG in $(sed -n "$SED_CONFIG_EXP" $TMP_FILE); do
 
         REQUESTED_VAL=$(grep -w -e "$CFG" $TMP_FILE)
-        ACTUAL_VAL=$(grep -w -e "$CFG" .config)
+        ACTUAL_VAL=$(grep -w -e "$CFG" $OUTPUT/.config)
         if [ "x$REQUESTED_VAL" != "x$ACTUAL_VAL" ] ; then
                 echo "Value requested for $CFG not in final .config"
                 echo "Requested value:  $REQUESTED_VAL"