#!/bin/bash

# Written by Manfred Mueller <manfred.mueller@fluxflux.net>
#
# Copyright (c) 2013  Manfred Mueller, Muelheim, Germany
#
#   Permission to use, copy, modify, and distribute this software for
#   any purpose with or without fee is hereby granted, provided that
#   the above copyright notice and this permission notice appear in all
#   copies.
#
#   THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
#   WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#   MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
#   IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
#   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
#   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
#   USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
#   ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
#   OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
#   OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
#   SUCH DAMAGE.
# -----------------------------------------------------------------------------

. /usr/share/slax/slaxbuildlib


SLAX_BUNDLE_NAME="kernel-devel"

SLAX_BUNDLE_VERSION="3.8.2"


SLAX_BUNDLE_DESCRIPTION="Kernel headers and makefiles
sufficient to build modules against the kernel package."

SLAX_BUNDLE_CATEGORIES="develop,system"

SLAX_BUNDLES_REQUIRED=""

SLAX_BUNDLES_REQUIRED_TO_COMPILE_ONLY="perl"

SLAX_BUNDLE_MAINTAINER_NAME="Manfred Mueller"
SLAX_BUNDLE_MAINTAINER_EMAIL="manfred.mueller@fluxflux.net"

SLAX_BUNDLE_SOURCE_DOWNLOAD[0]="ftp://ftp.linux.cz/pub/linux/slax/Slax-7.x-development/sources/Slax-7.0-sources/kernel/linux-${SLAX_BUNDLE_VERSION}.tar.xz"
SLAX_BUNDLE_SOURCE_DOWNLOAD[1]="ftp://ftp.linux.cz/pub/linux/slax/Slax-7.x-development/sources/Slax-7.0-sources/kernel/additions.tar.gz"

check_variables_for_errors

download_all_sources

extract_all_sources

init_bundle_target_dir

activate_required_bundles

VER=${SLAX_BUNDLE_VERSION}
DST=./linux-$VER
SRC=$(realpath .)/aufs3-standalone.git/

mkdir -p "$SLAX_BUNDLE_TARGET"/{etc,bin,sbin,usr/bin,usr/sbin}

umount $DST 2>/dev/null | true
rm -Rf $DST
mkdir -p $DST
mount -t tmpfs -o size="100%" tmpfs $DST
cd $DST

tar -C .. -xvf $SRC/../linux-$VER.tar.*

patch -p1 < $SRC/aufs3-kbuild.patch
patch -p1 < $SRC/aufs3-base.patch
patch -p1 < $SRC/aufs3-proc_map.patch
patch -p1 < $SRC/aufs3-standalone.patch
cp -va $SRC/Documentation .
cp -va $SRC/fs .
cp -va $SRC/include/linux/aufs_type.h ./include/linux
cp -va $SRC/include/uapi/linux/aufs_type.h ./include/uapi/linux

zcat /proc/config.gz >.config

make -j 8 || make || exit 1
make modules || exit 1
make headers_install INSTALL_HDR_PATH=${SLAX_BUNDLE_TARGET}/usr || exit 1

install -dm755 "${SLAX_BUNDLE_TARGET}/usr/lib/modules/${SLAX_BUNDLE_VERSION}"

( cd "${SLAX_BUNDLE_TARGET}/usr/lib/modules/${SLAX_BUNDLE_VERSION}"
ln -sf ../../../src/linux-${SLAX_BUNDLE_VERSION} build
)

install -D -m644 Makefile \
"${SLAX_BUNDLE_TARGET}/usr/src/linux-${SLAX_BUNDLE_VERSION}/Makefile"
install -D -m644 kernel/Makefile \
"${SLAX_BUNDLE_TARGET}/usr/src/linux-${SLAX_BUNDLE_VERSION}/kernel/Makefile"
install -D -m644 .config \
"${SLAX_BUNDLE_TARGET}/usr/src/linux-${SLAX_BUNDLE_VERSION}/.config"

mkdir -p "${SLAX_BUNDLE_TARGET}/usr/src/linux-${SLAX_BUNDLE_VERSION}/include"

for i in acpi asm-generic config crypto drm generated keys linux math-emu \
media net pcmcia scsi sound trace uapi video xen; do
cp -a include/${i} "${SLAX_BUNDLE_TARGET}/usr/src/linux-${SLAX_BUNDLE_VERSION}/include/"
done

mkdir -p "${SLAX_BUNDLE_TARGET}/usr/src/linux-${SLAX_BUNDLE_VERSION}/arch/x86"
cp -a arch/x86/include "${SLAX_BUNDLE_TARGET}/usr/src/linux-${SLAX_BUNDLE_VERSION}/arch/x86/"

cp Module.symvers "${SLAX_BUNDLE_TARGET}/usr/src/linux-${SLAX_BUNDLE_VERSION}"
cp -a scripts "${SLAX_BUNDLE_TARGET}/usr/src/linux-${SLAX_BUNDLE_VERSION}"

chmod og-w -R "${SLAX_BUNDLE_TARGET}/usr/src/linux-${SLAX_BUNDLE_VERSION}/scripts"
mkdir -p "${SLAX_BUNDLE_TARGET}/usr/src/linux-${SLAX_BUNDLE_VERSION}/.tmp_versions"

mkdir -p "${SLAX_BUNDLE_TARGET}/usr/src/linux-${SLAX_BUNDLE_VERSION}/arch/x86/kernel"

cp arch/x86/Makefile "${SLAX_BUNDLE_TARGET}/usr/src/linux-${SLAX_BUNDLE_VERSION}/arch/x86/"
cp arch/x86/Makefile_32.cpu "${SLAX_BUNDLE_TARGET}/usr/src/linux-${SLAX_BUNDLE_VERSION}/arch/x86/"
cp arch/x86/kernel/asm-offsets.s "${SLAX_BUNDLE_TARGET}/usr/src/linux-${SLAX_BUNDLE_VERSION}/arch/x86/kernel/"

chown -R root.root "${SLAX_BUNDLE_TARGET}/usr/src/linux-${SLAX_BUNDLE_VERSION}"
find "${SLAX_BUNDLE_TARGET}/usr/src/linux-${SLAX_BUNDLE_VERSION}" -type d -exec chmod 755 {} \;

find "${SLAX_BUNDLE_TARGET}/usr/src/linux-${SLAX_BUNDLE_VERSION}/scripts" -type f -perm -u+w 2>/dev/null | while read binary ; do
   case "$(file -bi "${binary}")" in
     *application/x-sharedlib*) # Libraries (.so)
       /usr/bin/strip ${STRIP_SHARED} "${binary}";;
     *application/x-archive*) # Libraries (.a)
       /usr/bin/strip ${STRIP_STATIC} "${binary}";;
     *application/x-executable*) # Binaries
       /usr/bin/strip ${STRIP_BINARIES} "${binary}";;
   esac
done

rm -rf "${SLAX_BUNDLE_TARGET}"/usr/src/linux-${SLAX_BUNDLE_VERSION}/arch/{alpha,arc,arm,arm26,avr32,blackfin,c6x,cris,frv,h8300,hexagon,ia64,m32r,m68k,m68knommu,metag,mips,microblaze,mn10300,openrisc,parisc,powerpc,ppc,s390,score,sh,sh64,sparc,sparc64,tile,unicore32,um,v850,xtensa}

( cd ${SLAX_CURRENT_BUILDSCRIPT_DIR}/linux-$VER
for FILE in System.map \
$(find . -name "Kconfig*" -type f) \
$(find . -name "Makefile*" -type f) \
$(find . -name "Kbuild*" -type f) \
$(find . -name "*.h" -type f); do
mkdir -p ${SLAX_BUNDLE_TARGET}/usr/src/linux-$VER/$(dirname $FILE)
cp -af $FILE ${SLAX_BUNDLE_TARGET}/usr/src/linux-$VER/$(dirname $FILE)/$(basename $FILE)
done
)
rmdir --ignore-fail-on-non-empty "$SLAX_BUNDLE_TARGET"/{etc,bin,sbin,usr/bin,usr/sbin}

create_slax_bundle