#!/bin/bash

# Create an ext2 root filesystem image from mini-native

source include.sh

echo -e "$PACKAGE_COLOR"
echo "=== Packaging system image from mini-native"

SYSIMAGE="${BUILD}/system-image-${ARCH}"
IMAGE="${SYSIMAGE}/image-${ARCH}.ext2"

# If the host system hasn't got genext2fs, build it.  We use it to build the
# ext2 image to boot qemu with.

if [ -z "$(which genext2fs)" ]
then
  setupfor genext2fs &&
  ./configure &&
  make -j $CPUS &&
  cp genext2fs "${HOSTTOOLS}" &&
  cd ..

  cleanup genext2fs
fi

# Flush old system-image directory

rm -rf "${SYSIMAGE}"
mkdir -p "${SYSIMAGE}" &&

# Create a 64 meg sparse image

#dd if=/dev/zero of="$IMAGE" bs=1024 seek=$[64*1024-1] count=1 &&
#/sbin/mke2fs -b 1024 -F "$IMAGE" &&

cat > "$WORK/devlist" << EOF &&
/dev d 755 0 0 - - - - -
/dev/console c 640 0 0 5 1 0 0 -
EOF
genext2fs -z -D "$WORK/devlist" -d "${NATIVE}" -i 1024 -b $[64*1024] "$IMAGE" &&
rm "$WORK/devlist" || dienow

# Provide qemu's common command line options between architectures.  The lack
# of ending quotes on -append is intentional, callers append more kernel
# command line arguments and provide their own ending quote.
function qemu_defaults()
{
  echo "-nographic -no-reboot \$WITH_HDB" \
       "-hda \"$1\" -kernel \"$2\"" \
       "-append \"root=/dev/$ROOT console=$CONSOLE" \
       "rw init=/tools/bin/qemu-setup.sh panic=1" \
       'PATH=$DISTCC_PATH_PREFIX/tools/bin $KERNEL_EXTRA"'
}

# Write out a script to call the appropriate emulator.  We split out the
# filesystem, kernel, and base kernel command line arguments in case you want
# to use an emulator other than qemu, but put the default case in qemu_defaults

emulator_command image-$ARCH.ext2 zImage-$ARCH > "$SYSIMAGE/run-emulator.sh" &&
chmod +x "$SYSIMAGE/run-emulator.sh" &&
ln "$WORK/zImage-$ARCH" "$SYSIMAGE" &&
cp "$SOURCES"/toys/run-with-{distcc,home}.sh "$SYSIMAGE"

[ $? -ne 0 ] && dienow

# Adjust things before creating tarball.

if [ -z "$NATIVE_TOOLSDIR" ]
then
  sed -i 's@/tools/@/usr/@g' "$SYSIMAGE"/*.sh || dienow
fi

if [ "$ARCH" == powerpc ]
then
  cp "$SOURCES"/toys/ppc_rom.bin "$SYSIMAGE" || dienow
fi

# Tar it up.

tar -cvj -f "$BUILD"/system-image-$ARCH.tar.bz2 \
  -C "$BUILD" system-image-$ARCH || dienow

echo -e "=== Packaging complete\e[0m"


# We used to do this, but updating the squashfs patch for each new kernel
# was just too much work.  If it gets merged someday, we may care again...

#echo -n "Creating tools.sqf"
#("${WORK}/mksquashfs" "${NATIVE}/tools" "${WORK}/tools.sqf" \
#  -noappend -all-root -info || dienow) | dotprogress