debian/scripts/misc/kernelconfig

   1 #!/bin/bash
   2
   3 . debian/debian.env
   4
   5 # Script to merge all configs and run 'make silentoldconfig' on it to wade out bad juju.
   6 # Then split the configs into distro-commmon and flavour-specific parts
   7
   8 # We have to be in the top level kernel source directory
   9 if [ ! -f MAINTAINERS ] || [ ! -f Makefile ]; then
  10         echo "This does not appear to be the kernel source directory." 1>&2
  11         exit 1
  12 fi
  13
  14 mode=${1:?"Usage: $0 [oldconfig|editconfig]"}
  15 yes=0
  16 case "$mode" in
  17     update*configs) mode='silentoldconfig' ;;
  18     default*configs) mode='oldconfig'; yes=1 ;;
  19     edit*configs) ;; # All is good
  20     gen*configs)  ;; # All is good
  21     dump*configs) mode='config'; yes=1 ;;
  22     *) echo "$0 called with invalid mode" 1>&2
  23        exit 1 ;;
  24 esac
  25 kerneldir="`pwd`"
  26 confdir="$kerneldir/${DEBIAN}/config"
  27 sharedconfdir="$kerneldir/debian.master/config"
  28 variant="$2"
  29
  30 . $DEBIAN/etc/kernelconfig
  31
  32 bindir="`pwd`/${DROOT}/scripts/misc"
  33 common_conf="$confdir/config.common.$family"
  34 tmpdir=`mktemp -d`
  35 mkdir "$tmpdir/CONFIGS"
  36
  37 if [ "$mode" = "genconfigs" ]; then
  38         keep=1
  39         mode="oldconfig"
  40         test -d CONFIGS || mkdir CONFIGS
  41 fi
  42
  43 for arch in $archs; do
  44         rm -rf build
  45         mkdir build
  46
  47         # Map debian archs to kernel archs
  48         case "$arch" in
  49                 amd64)  kernarch="x86_64"       ;;
  50                 lpia)   kernarch="x86"          ;;
  51                 sparc)  kernarch="sparc64"      ;;
  52                 armel)  kernarch="arm"          ;;
  53                 *)      kernarch="$arch"        ;;
  54         esac
  55
  56         archconfdir=$confdir/$arch
  57         flavourconfigs=$(cd $archconfdir && ls config.flavour.*)
  58
  59         # Merge configs
  60         # We merge config.common.ubuntu + config.common.<arch> +
  61         # config.flavour.<flavour>
  62
  63         for config in $flavourconfigs; do
  64                 fullconf="$tmpdir/$arch-$config-full"
  65                 case $config in
  66                 *)
  67                         : >"$fullconf"
  68                         if [ -f $common_conf ]; then
  69                                 cat $common_conf >> "$fullconf"
  70                         fi
  71                         if [ -f $archconfdir/config.common.$arch ]; then
  72                                 cat $archconfdir/config.common.$arch >> "$fullconf"
  73                         fi
  74                         cat "$archconfdir/$config" >>"$fullconf"
  75                         if [ -f $confdir/OVERRIDES ]; then
  76                                 cat $confdir/OVERRIDES >> "$fullconf"
  77                         fi
  78                         ;;
  79                 esac
  80         done
  81
  82         for config in $flavourconfigs; do
  83                 if [ -f $archconfdir/$config ]; then
  84                         fullconf="$tmpdir/$arch-$config-full"
  85                         cat "$fullconf" > build/.config
  86                         # Call oldconfig or menuconfig
  87                         case "$mode" in
  88                             editconfigs)
  89                                 # Interactively edit config parameters
  90                                 while : ; do
  91                                         echo -n "Do you want to edit config: $arch/$config? [Y/n] "
  92                                         read choice
  93
  94                                         case "$choice" in
  95                                         y* | Y* | "" )
  96                                                 make O=`pwd`/build ARCH=$kernarch menuconfig
  97                                                 break ;;
  98                                         n* | N* )
  99                                                 break ;;
 100                                         *)
 101                                                 echo "Entry not valid"
 102                                         esac
 103                                 done
 104                                 ;;
 105                             *)
 106                                 echo "* Run $mode (yes=$yes) on $arch/$config ..."
 107                                 if [ "$yes" -eq 1 ]; then
 108                                         yes "" | make O=`pwd`/build ARCH=$kernarch "$mode"
 109                                 else
 110                                         make O=`pwd`/build ARCH=$kernarch "$mode"
 111                                 fi ;;
 112                         esac
 113                         cat build/.config > $archconfdir/$config
 114                         cat build/.config > "$tmpdir/CONFIGS/$arch-$config"
 115                         if [ "$keep" = "1" ]; then
 116                                 cat build/.config > CONFIGS/$arch-$config
 117                         fi
 118                 else
 119                         echo "!! Config not found $archconfdir/$config..."
 120                 fi
 121         done
 122
 123         echo "Running splitconfig.pl for $arch"
 124         echo
 125
 126         # Can we make this more robust by avoiding $tmpdir completely?
 127         # This approach was used for now because I didn't want to change
 128         # splitconfig.pl
 129         (cd $archconfdir; $bindir/splitconfig.pl; mv config.common \
 130          config.common.$arch; cp config.common.$arch $tmpdir)
 131 done
 132
 133 rm -f $common_conf
 134
 135 # Now run splitconfig.pl on all the config.common.<arch> copied to
 136 # $tmpdir
 137 (cd $tmpdir; $bindir/splitconfig.pl)
 138 (
 139         cd $confdir;
 140         rm -f *-full
 141         grep -v 'is UNMERGABLE' <$tmpdir/config.common >$common_conf
 142         for arch in $archs; do
 143                 grep -v 'is UNMERGABLE' <$tmpdir/config.common.$arch \
 144                         >$arch/config.common.$arch
 145         done
 146 )
 147
 148 echo ""
 149 echo "Running config-check for all configurations ..."
 150 echo ""
 151 fail=0
 152 for arch in $archs; do
 153         archconfdir=$confdir/$arch
 154         flavourconfigs=$(cd $archconfdir && ls config.flavour.*)
 155         for config in $flavourconfigs; do
 156                 if [ -f $archconfdir/$config ]; then
 157                         fullconf="$tmpdir/CONFIGS/$arch-$config"
 158                         "$bindir/../config-check" "$fullconf" "$arch" "$config" "$sharedconfdir" "0" || let "fail=$fail+1"
 159                 fi
 160         done
 161 done
 162
 163 if [ "$fail" != 0 ]; then
 164         echo ""
 165         echo "*** ERROR: $fail config-check failures detected"
 166         echo ""
 167 fi
 168
 169 rm -rf build
 170