#!/bin/bash

. ../crosstool/cross-var

LKERN=../kernel/dongle/linux-2.4.31
LGENFS=genext2fs-1.4/genext2fs
OUTFILE=vomp-dongle

# Create initial file system

mkdir tofs/proc
cp -a ../busybox/dongle/install fs
cp -a tofs/* fs

# Insert vompclient

cp -fv ../client/vompclient fs
cp -fv ../client/other/vdr.jpg fs
cp -fv ../client/other/wallpaperNTSC.jpg fs
cp -fv ../client/other/wallpaperPAL.jpg fs
cp -fv ../lbox_border/lbox_border.o fs/lib/modules/2.4.31

# Get kernel files temp dir ready

mkdir kernel_temp
BOOT=${LKERN}/arch/ppc/boot
CFILES=${BOOT}/common/{dummy,misc-common,ns16550,relocate,string,util,serial_stub}.o
SFILES=${BOOT}/simple/{embed_config,head,misc-embedded}.o
KFILE=${BOOT}/images/vmlinux.gz
FILES=`sh -c "echo $CFILES $SFILES $KFILE ${BOOT}/lib/zlib.a ${BOOT}/ld.script"`
cp $FILES kernel_temp

# Check filesystem size

RAMDISK_SIZE=`du -ks fs | cut -f 1`
let RAMDISK_SIZE=$RAMDISK_SIZE+300
if [ $RAMDISK_SIZE -gt 4096 ] ; then
  echo "ramdisk too big"
  exit
fi

# Create the ramdisk out of the fs directory

${LGENFS} -d fs -b ${RAMDISK_SIZE} -D devtable ramdisk
/bin/gzip ramdisk

# Put it all together

mkdir build_temp

# make_dongle() - this is straight out of arch/ppc in the linux tree

OBJCOPY=${CROSS}objcopy
LD=${CROSS}ld

$OBJCOPY -O elf32-powerpc \
  --add-section=.ramdisk=ramdisk.gz \
  --set-section-flags=.ramdisk=contents,alloc,load,readonly,data \
  --add-section=.image=kernel_temp/vmlinux.gz \
  --set-section-flags=.image=contents,alloc,load,readonly,data \
  kernel_temp/dummy.o build_temp/image.o

$LD -T kernel_temp/ld.script -Ttext 0x00400000 -Bstatic -o build_temp/zvmlinux.initrd \
  kernel_temp/head.o kernel_temp/relocate.o kernel_temp/misc-embedded.o \
  kernel_temp/misc-common.o kernel_temp/string.o kernel_temp/util.o kernel_temp/serial_stub.o \
  kernel_temp/embed_config.o kernel_temp/ns16550.o build_temp/image.o \
  kernel_temp/zlib.a

$OBJCOPY -O elf32-powerpc build_temp/zvmlinux.initrd build_temp/zvmlinux.initrd \
  -R .comment -R .stab -R .stabstr -R .sysmap

${LKERN}/arch/ppc/boot/utils/mktree build_temp/zvmlinux.initrd $OUTFILE

# Clean up

rm -f ramdisk.gz
rm -rf build_temp
rm -rf kernel_temp
rm -rf fs

# Install to tftp location

if [ -d /diskless/tftp/mvp ] && [ -w /diskless/tftp/mvp ]
then
  cp -v $OUTFILE /diskless/tftp/mvp
fi

if [ -d /diskless/tftp/wmvp ] && [ -w /diskless/tftp/wmvp ]
then
  cp -v $OUTFILE /diskless/tftp/wmvp
fi