The cirros image was rebuilt against the 3.13.0-83 kernel, drivers e1000e, igbvf...

[packages/trusty/cirros-testvm.git] / cirros-testvm / src-cirros / buildroot-2015.05 / support / kconfig / merge_config.sh

diff --git a/cirros-testvm/src-cirros/buildroot-2015.05/support/kconfig/merge_config.sh b/cirros-testvm/src-cirros/buildroot-2015.05/support/kconfig/merge_config.sh
new file mode 100755 (executable)
index 0000000..81b0c61
--- /dev/null
+++ b/cirros-testvm/src-cirros/buildroot-2015.05/support/kconfig/merge_config.sh
@@ -0,0 +1,150 @@
+#!/bin/sh
+#  merge_config.sh - Takes a list of config fragment values, and merges
+#  them one by one. Provides warnings on overridden values, and specified
+#  values that did not make it to the resulting .config file (due to missed
+#  dependencies or config symbol removal).
+#
+#  Portions reused from kconf_check and generate_cfg:
+#  http://git.yoctoproject.org/cgit/cgit.cgi/yocto-kernel-tools/tree/tools/kconf_check
+#  http://git.yoctoproject.org/cgit/cgit.cgi/yocto-kernel-tools/tree/tools/generate_cfg
+#
+#  Copyright (c) 2009-2010 Wind River Systems, Inc.
+#  Copyright 2011 Linaro
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License version 2 as
+#  published by the Free Software Foundation.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#  See the GNU General Public License for more details.
+
+clean_up() {
+       rm -f $TMP_FILE
+       exit
+}
+trap clean_up HUP INT TERM
+
+usage() {
+       echo "Usage: $0 [OPTIONS] [CONFIG [...]]"
+       echo "  -h    display this help text"
+       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
+       "-n")
+               ALLTARGET=allnoconfig
+               shift
+               continue
+               ;;
+       "-m")
+               MAKE=false
+               shift
+               continue
+               ;;
+       "-h")
+               usage
+               exit
+               ;;
+       "-r")
+               WARNREDUN=true
+               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
+               ;;
+       esac
+done
+
+INITFILE=$1
+shift;
+
+MERGE_LIST=$*
+SED_CONFIG_EXP="s/^\(# \)\{0,1\}\(CONFIG_[a-zA-Z0-9_]*\)[= ].*/\2/p"
+TMP_FILE=$(mktemp ./.tmp.config.XXXXXXXXXX)
+
+echo "Using $INITFILE as base"
+cat $INITFILE > $TMP_FILE
+
+# Merge files, printing warnings on overrided values
+for MERGE_FILE in $MERGE_LIST ; do
+       echo "Merging $MERGE_FILE"
+       CFG_LIST=$(sed -n "$SED_CONFIG_EXP" $MERGE_FILE)
+
+       for CFG in $CFG_LIST ; do
+               grep -q -w $CFG $TMP_FILE
+               if [ $? -eq 0 ] ; then
+                       PREV_VAL=$(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:
+                       echo Previous  value: $PREV_VAL
+                       echo New value:       $NEW_VAL
+                       echo
+                       elif [ "$WARNREDUN" = "true" ]; then
+                       echo Value of $CFG is redundant by fragment $MERGE_FILE:
+                       fi
+                       sed -i "/$CFG[ =]/d" $TMP_FILE
+               fi
+       done
+       cat $MERGE_FILE >> $TMP_FILE
+done
+
+if [ "$MAKE" = "false" ]; then
+       cp $TMP_FILE $OUTPUT/.config
+       echo "#"
+       echo "# merged configuration written to $OUTPUT/.config (needs make)"
+       echo "#"
+       clean_up
+       exit
+fi
+
+# If we have an output dir, setup the O= argument, otherwise leave
+# it blank, since O=. will create an unnecessary ./source softlink
+OUTPUT_ARG=""
+if [ "$OUTPUT" != "." ] ; then
+       OUTPUT_ARG="O=$OUTPUT"
+fi
+
+
+# Use the merged file as the starting point for:
+# alldefconfig: Fills in any missing symbols with Kconfig default
+# allnoconfig: Fills in any missing symbols with # CONFIG_* is not set
+make KCONFIG_ALLCONFIG=$TMP_FILE $OUTPUT_ARG $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" $OUTPUT/.config)
+       if [ "x$REQUESTED_VAL" != "x$ACTUAL_VAL" ] ; then
+               echo "Value requested for $CFG not in final .config"
+               echo "Requested value:  $REQUESTED_VAL"
+               echo "Actual value:     $ACTUAL_VAL"
+               echo ""
+       fi
+done
+
+clean_up