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)     mode='genconfigs' ;; # 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 variant="$2"
  28
  29 . $DEBIAN/etc/kernelconfig
  30
  31 bindir="`pwd`/${DROOT}/scripts/misc"
  32 common_conf="$confdir/config.common.$family"
  33 tmpdir=`mktemp -d`
  34 mkdir "$tmpdir/CONFIGS"
  35
  36 if [ "$mode" = "genconfigs" ]; then
  37         keep=1
  38         mode="oldconfig"
  39         test -d CONFIGS || mkdir CONFIGS
  40 fi
  41
  42 for arch in $archs; do
  43         rm -rf build
  44         mkdir build
  45
  46         # Map debian archs to kernel archs
  47         case "$arch" in
  48                 ppc64|ppc64el)  kernarch="powerpc"      ;;
  49                 amd64)          kernarch="x86_64"       ;;
  50                 lpia)           kernarch="x86"          ;;
  51                 sparc)          kernarch="sparc64"      ;;
  52                 armel|armhf)    kernarch="arm"          ;;
  53                 s390x)          kernarch="s390"         ;;
  54                 *)              kernarch="$arch"        ;;
  55         esac
  56
  57         archconfdir=$confdir/$arch
  58         flavourconfigs=$(cd $archconfdir && ls config.flavour.*)
  59
  60         # Merge configs
  61         # We merge config.common.ubuntu + config.common.<arch> +
  62         # config.flavour.<flavour>
  63
  64         for config in $flavourconfigs; do
  65                 fullconf="$tmpdir/$arch-$config-full"
  66                 case $config in
  67                 *)
  68                         : >"$fullconf"
  69                         if [ -f $common_conf ]; then
  70                                 cat $common_conf >> "$fullconf"
  71                         fi
  72                         if [ -f $archconfdir/config.common.$arch ]; then
  73                                 cat $archconfdir/config.common.$arch >> "$fullconf"
  74                         fi
  75                         cat "$archconfdir/$config" >>"$fullconf"
  76                         if [ -f $confdir/OVERRIDES ]; then
  77                                 cat $confdir/OVERRIDES >> "$fullconf"
  78                         fi
  79                         ;;
  80                 esac
  81         done
  82
  83         for config in $flavourconfigs; do
  84                 if [ -f $archconfdir/$config ]; then
  85                         fullconf="$tmpdir/$arch-$config-full"
  86                         cat "$fullconf" > build/.config
  87                         # Call oldconfig or menuconfig
  88                         case "$mode" in
  89                             editconfigs)
  90                                 # Interactively edit config parameters
  91                                 while : ; do
  92                                         echo -n "Do you want to edit config: $arch/$config? [Y/n] "
  93                                         read choice
  94
  95                                         case "$choice" in
  96                                         y* | Y* | "" )
  97                                                 make O=`pwd`/build ARCH=$kernarch menuconfig
  98                                                 break ;;
  99                                         n* | N* )
 100                                                 # 'silentoldconfig' prevents
 101                                                 # errors for '-' options set
 102                                                 # in common config fragments
 103                                                 make O=`pwd`/build ARCH=$kernarch silentoldconfig
 104                                                 break ;;
 105                                         *)
 106                                                 echo "Entry not valid"
 107                                         esac
 108                                 done
 109                                 ;;
 110                             *)
 111                                 echo "* Run $mode (yes=$yes) on $arch/$config ..."
 112                                 if [ "$yes" -eq 1 ]; then
 113                                         yes "" | make O=`pwd`/build ARCH=$kernarch "$mode"
 114                                 else
 115                                         make O=`pwd`/build ARCH=$kernarch "$mode"
 116                                 fi ;;
 117                         esac
 118                         cat build/.config > $archconfdir/$config
 119                         cat build/.config > "$tmpdir/CONFIGS/$arch-$config"
 120                         if [ "$keep" = "1" ]; then
 121                                 cat build/.config > CONFIGS/$arch-$config
 122                         fi
 123                 else
 124                         echo "!! Config not found $archconfdir/$config..."
 125                 fi
 126         done
 127
 128         echo "Running splitconfig.pl for $arch"
 129         echo
 130
 131         # Can we make this more robust by avoiding $tmpdir completely?
 132         # This approach was used for now because I didn't want to change
 133         # splitconfig.pl
 134         (cd $archconfdir; $bindir/splitconfig.pl config.flavour.*; mv config.common \
 135          config.common.$arch; cp config.common.$arch $tmpdir)
 136 done
 137
 138 rm -f $common_conf
 139
 140 # Now run splitconfig.pl on all the config.common.<arch> copied to
 141 # $tmpdir
 142 (cd $tmpdir; $bindir/splitconfig.pl *)
 143 (
 144         cd $confdir;
 145         rm -f *-full
 146         grep -v 'is UNMERGABLE' <$tmpdir/config.common >$common_conf
 147         for arch in $archs; do
 148                 grep -v 'is UNMERGABLE' <$tmpdir/config.common.$arch \
 149                         >$arch/config.common.$arch
 150         done
 151 )
 152
 153 echo ""
 154 echo "Running config-check for all configurations ..."
 155 echo ""
 156 fail=0
 157 for arch in $archs; do
 158         archconfdir=$confdir/$arch
 159         flavourconfigs=$(cd $archconfdir && ls config.flavour.*)
 160         for config in $flavourconfigs; do
 161                 flavour="${config##*.}"
 162                 if [ -f $archconfdir/$config ]; then
 163                         fullconf="$tmpdir/CONFIGS/$arch-$config"
 164                         "$bindir/../config-check" "$fullconf" "$arch" "$flavour" "$confdir" "0" || let "fail=$fail+1"
 165                 fi
 166         done
 167 done
 168
 169 if [ "$fail" != 0 ]; then
 170         echo ""
 171         echo "*** ERROR: $fail config-check failures detected"
 172         echo ""
 173 fi
 174
 175 rm -rf build
 176