#!/bin/bash
# Takes a list of dts files for the specified architecture and emits appropriate compiled dtb files for use in customised deviceTree setups.
#

dtc=/usr/bin/dtc
revision=`/usr/bin/uname -r`
# alt=../alt-trees -- disabled auto building of all alt trees, better to do individually

echo "Compiling against headers for $revision"

if [ -d "$revision" ]; then
    echo "Cleaning and Using existing build directory"
    rm "$revision/*.dts $revision/*.dtsi $revision/*.dtb"
else
    echo "Creating new build directory: $revision"
    mkdir "$revision"
fi

#echo "Copying custom dts sources to build root"
#for dts in `ls -d $alt/*/*.dts`; do
#    echo "$dts"
#    cp $dts .
#done

echo "Precompiling all includes in build root into $revision build directory"
for file in `ls *.dtsi`; do
    echo "  $file -> $revision/${file##*/}"
    cpp -I/usr/src/linux-headers-$revision/include/ -nostdinc -undef -x assembler-with-cpp $file > $revision/${file##*/}
done

echo "Precompiling all sources in build root into $revision build directory"
for file in `ls *.dts`; do
    echo "  $file -> $revision/${file##*/}"
    cpp -I/usr/src/linux-headers-$revision/include/ -nostdinc -undef -x assembler-with-cpp $file > $revision/${file##*/}
done

echo "Compiling all device tree sources in $revision build directory"
cd $revision
for file in `ls *.dts`; do
    out=${file/.dts/.dtb}
    echo "  $revision/$file -> $revision/$revision-$out"
    $dtc $file > $revision-$out
done