kernel: Added debian.chrome abstraction (version 2)

debian.chrome/scripts/misc/kernelconfig

+#!/bin/bash
+
+. debian/debian.env
+
+# Script to merge all configs and run 'make silentoldconfig' on it to wade out bad juju.
+# Then split the configs into distro-commmon and flavour-specific parts
+
+# We have to be in the top level kernel source directory
+if [ ! -f MAINTAINERS ] || [ ! -f Makefile ]; then
+        echo "This does not appear to be the kernel source directory." 1>&2
+        exit 1
+fi
+
+mode=${1:?"Usage: $0 [oldconfig|editconfig]"}
+case "$mode" in
+    oldconfig)  ;; # All is good
+    editconfig) ;; # All is good
+    genconfig)  ;; # All is good
+    *) echo "$0 called with invalid mode" 1>&2
+       exit 1 ;;
+esac
+kerneldir="`pwd`"
+confdir="$kerneldir/${DEBIAN}/config"
+archs="i386"
+family='chromeos'
+bindir="`pwd`/${DEBIAN}/scripts/misc"
+common_conf="$confdir/config.common.$family"
+tmpdir=`mktemp -d`
+
+if [ "$mode" = "genconfig" ]; then
+        keep=1
+        mode="oldconfig"
+        test -d CONFIGS || mkdir CONFIGS
+fi
+
+test -d build || mkdir build
+
+for arch in $archs; do
+        # Map debian archs to kernel archs
+        case "$arch" in
+                amd64)  kernarch="x86_64"       ;;
+                lpia)   kernarch="x86" ;;
+                sparc)  kernarch="sparc64"      ;;
+                *)      kernarch="$arch"        ;;
+        esac
+
+        echo ""
+        echo "***************************************"
+        echo "* Processing $arch ($kernarch) ... "
+        archconfdir=$confdir/$arch
+        flavourconfigs=$(cd $archconfdir && ls config.flavour.*)
+
+        # Merge configs
+        # We merge config.common.ubuntu + config.common.<arch> +
+        # config.flavour.<flavour>
+
+        for config in $flavourconfigs; do
+                fullconf="$tmpdir/$arch-$config-full"
+                case $config in
+                *)
+                        : >"$fullconf"
+                        if [ -f $common_conf ]; then
+                                cat $common_conf >> "$fullconf"
+                        fi
+                        if [ -f $archconfdir/config.common.$arch ]; then
+                                cat $archconfdir/config.common.$arch >> "$fullconf"
+                        fi
+                        cat "$archconfdir/$config" >>"$fullconf"
+                        ;;
+                esac
+        done
+
+        for config in $flavourconfigs; do
+                if [ -f $archconfdir/$config ]; then
+                        fullconf="$tmpdir/$arch-$config-full"
+                        cat "$fullconf" > build/.config
+                        # Call oldconfig or menuconfig
+                        case "$mode" in
+                            oldconfig)
+                                # Weed out incorrect config parameters
+                                echo "* Run silentoldconfig on $arch/$config ..."
+                                make O=`pwd`/build ARCH=$kernarch silentoldconfig ;;
+                            editconfig)
+                                # Interactively edit config parameters
+                                echo " * Run menuconfig on $arch/$config... Press a key."
+                                read
+                                make O=`pwd`/build ARCH=$kernarch menuconfig ;;
+                            *)  # Bad!
+                                exit 1 ;;
+                        esac
+                        cat build/.config > $archconfdir/$config
+                        if [ "$keep" = "1" ]; then
+                                cat build/.config > CONFIGS/$arch-$config
+                        fi
+                else
+                        echo "!! Config not found $archconfdir/$config..."
+                fi
+        done
+
+        echo "Running splitconfig.pl for $arch"
+        echo
+
+        # Can we make this more robust by avoiding $tmpdir completely?
+        # This approach was used for now because I didn't want to change
+        # splitconfig.pl
+        (cd $archconfdir; $bindir/splitconfig.pl; mv config.common \
+         config.common.$arch; cp config.common.$arch $tmpdir)
+done
+
+rm -f $common_conf
+
+# Now run splitconfig.pl on all the config.common.<arch> copied to
+# $tmpdir
+(cd $tmpdir; $bindir/splitconfig.pl)
+(
+        cd $confdir;
+        rm -f *-full
+        grep -v 'is UNMERGABLE' <$tmpdir/config.common >$common_conf
+        for arch in $archs; do
+                grep -v 'is UNMERGABLE' <$tmpdir/config.common.$arch \
+                        >$arch/config.common.$arch
+        done
+)