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/${DEBIAN}/config"
  27 sharedconfdir="$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                 ppc64)          kernarch="powerpc"      ;;
  50                 amd64)          kernarch="x86_64"       ;;
  51                 lpia)           kernarch="x86"          ;;
  52                 sparc)          kernarch="sparc64"      ;;
  53                 armel|armhf)    kernarch="arm"          ;;
  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                                                 break ;;
 101                                         *)
 102                                                 echo "Entry not valid"
 103                                         esac
 104                                 done
 105                                 ;;
 106                             *)
 107                                 echo "* Run $mode (yes=$yes) on $arch/$config ..."
 108                                 if [ "$yes" -eq 1 ]; then
 109                                         yes "" | make O=`pwd`/build ARCH=$kernarch "$mode"
 110                                 else
 111                                         make O=`pwd`/build ARCH=$kernarch "$mode"
 112                                 fi ;;
 113                         esac
 114                         cat build/.config > $archconfdir/$config
 115                         cat build/.config > "$tmpdir/CONFIGS/$arch-$config"
 116                         if [ "$keep" = "1" ]; then
 117                                 cat build/.config > CONFIGS/$arch-$config
 118                         fi
 119                 else
 120                         echo "!! Config not found $archconfdir/$config..."
 121                 fi
 122         done
 123
 124         echo "Running splitconfig.pl for $arch"
 125         echo
 126
 127         # Can we make this more robust by avoiding $tmpdir completely?
 128         # This approach was used for now because I didn't want to change
 129         # splitconfig.pl
 130         (cd $archconfdir; $bindir/splitconfig.pl; mv config.common \
 131          config.common.$arch; cp config.common.$arch $tmpdir)
 132 done
 133
 134 rm -f $common_conf
 135
 136 # Now run splitconfig.pl on all the config.common.<arch> copied to
 137 # $tmpdir
 138 (cd $tmpdir; $bindir/splitconfig.pl)
 139 (
 140         cd $confdir;
 141         rm -f *-full
 142         grep -v 'is UNMERGABLE' <$tmpdir/config.common >$common_conf
 143         for arch in $archs; do
 144                 grep -v 'is UNMERGABLE' <$tmpdir/config.common.$arch \
 145                         >$arch/config.common.$arch
 146         done
 147 )
 148
 149 echo ""
 150 echo "Running config-check for all configurations ..."
 151 echo ""
 152 fail=0
 153 for arch in $archs; do
 154         archconfdir=$confdir/$arch
 155         flavourconfigs=$(cd $archconfdir && ls config.flavour.*)
 156         for config in $flavourconfigs; do
 157                 flavour="${config##*.}"
 158                 if [ -f $archconfdir/$config ]; then
 159                         fullconf="$tmpdir/CONFIGS/$arch-$config"
 160                         "$bindir/../config-check" "$fullconf" "$arch" "$flavour" "$sharedconfdir" "0" || let "fail=$fail+1"
 161                 fi
 162         done
 163 done
 164
 165 if [ "$fail" != 0 ]; then
 166         echo ""
 167         echo "*** ERROR: $fail config-check failures detected"
 168         echo ""
 169 fi
 170
 171 rm -rf build
 172