# ARMv7 multi-platform
# Maintainer: Kevin Mihelich <kevin@archlinuxarm.org>

buildarch=4

pkgbase=linux-armv7-rc
_srcname=linux-3.17-rc2
_kernelname=${pkgbase#linux}
_desc="ARMv7 multi-platform"
pkgver=3.17.0
pkgrel=2
rcnrel=armv7-x1
arch=('armv7h')
url="http://www.kernel.org/"
license=('GPL2')
makedepends=('xmlto' 'docbook-xsl' 'kmod' 'inetutils' 'bc' 'git' 'uboot-tools')
options=('!strip')
source=("http://www.kernel.org/pub/linux/kernel/v3.x/testing/${_srcname}.tar.xz"
        "http://rcn-ee.net/deb/sid-armhf/v${pkgver}-${_srcname##*-}-${rcnrel}/patch-${pkgver%.0}-${_srcname##*-}-${rcnrel}.diff.gz"
        "git://git.code.sf.net/p/aufs/aufs3-standalone#branch=aufs3.x-rcN"
        '0001-atags-add-support-for-marvell-uboot.patch'
        '0002-atags-retrieve-mac-addresses.patch'
        '0003-smileplug-devicetree.patch'
        '0004-emmc-timing-fix.patch'
        'config')
md5sums=('96fcee8e0816b25ae007ff6fa0898c85'
         'df1af4ec78ba48abfb658ea9fff4eb47'
         'SKIP'
         '3ad860d0d6daedc82091ea29c9730b95'
         '02cce6b8f88c4392f552b14d0bf2e71c'
         '0a0c5691aea2503cd0c503cb50244f48'
         '911bffe9c261ca5b91dd0a083d99e81f'
         '16f30bc1c5cd768e45d4900c722ed768')

prepare() {
  cd "${srcdir}/${_srcname}"

  # RCN patch
  git apply ../patch-${pkgver%.0}-${_srcname##*-}-${rcnrel}.diff

  # ALARM patches
  patch -p1 -i ../0001-atags-add-support-for-marvell-uboot.patch
  patch -p1 -i ../0002-atags-retrieve-mac-addresses.patch
  patch -p1 -i ../0003-smileplug-devicetree.patch
  patch -p1 -i ../0004-emmc-timing-fix.patch

  # AUFS patches
  cp -ru "${srcdir}/aufs3-standalone/Documentation" .
  cp -ru "${srcdir}/aufs3-standalone/fs" .
  cp -ru "${srcdir}/aufs3-standalone/include/uapi/linux/aufs_type.h" ./include/linux
  cp -ru "${srcdir}/aufs3-standalone/include/uapi/linux/aufs_type.h" ./include/uapi/linux

  patch -Np1 -i ../aufs3-standalone/aufs3-kbuild.patch
  patch -Np1 -i ../aufs3-standalone/aufs3-base.patch
  patch -Np1 -i ../aufs3-standalone/aufs3-mmap.patch
  patch -Np1 -i ../aufs3-standalone/aufs3-standalone.patch

  cat "${srcdir}/config" > ./.config

  # add pkgrel to extraversion
  sed -ri "s|^(EXTRAVERSION =)(.*)|\1 \2-${pkgrel}|" Makefile

  # don't run depmod on 'make install'. We'll do this ourselves in packaging
  sed -i '2iexit 0' scripts/depmod.sh
}

build() {
  cd "${srcdir}/${_srcname}"

  # get kernel version
  make prepare

  # load configuration
  # Configure the kernel. Replace the line below with one of your choice.
  #make menuconfig # CLI menu for configuration
  #make nconfig # new CLI menu for configuration
  #make xconfig # X-based configuration
  #make oldconfig # using old config from previous kernel version
  # ... or manually edit .config

  # Copy back our configuration (use with new kernel version)
  #cp ./.config ../${pkgbase}.config

  ####################
  # stop here
  # this is useful to configure the kernel
  #msg "Stopping build"
  #return 1
  ####################

  #yes "" | make config

  # build!
  make ${MAKEFLAGS} zImage modules dtbs
}

_package() {
  pkgdesc="The Linux Kernel and modules - ${_desc}"
  depends=('coreutils' 'linux-firmware' 'kmod' 'mkinitcpio>=0.7')
  optdepends=('crda: to set the correct wireless channels of your country')
  provides=('kernel26' "linux=${pkgver}" 'aufs_friendly')
  conflicts=('linux')
  replaces=('linux-mvebu')
  install=${pkgname}.install

  cd "${srcdir}/${_srcname}"

  KARCH=arm

  # get kernel version
  _kernver="$(make kernelrelease)"
  _basekernel=${_kernver%%-*}
  _basekernel=${_basekernel%.*}

  mkdir -p "${pkgdir}"/{lib/modules,lib/firmware,boot/dtbs}
  make INSTALL_MOD_PATH="${pkgdir}" modules_install
  cp arch/$KARCH/boot/zImage "${pkgdir}/boot/zImage"
  cp arch/$KARCH/boot/dts/*.dtb "${pkgdir}/boot/dtbs"

  # set correct depmod command for install
  sed \
    -e  "s/KERNEL_NAME=.*/KERNEL_NAME=${_kernelname}/g" \
    -e  "s/KERNEL_VERSION=.*/KERNEL_VERSION=${_kernver}/g" \
    -i "${startdir}/${pkgname}.install"

  # remove build and source links
  rm -f "${pkgdir}"/lib/modules/${_kernver}/{source,build}
  # remove the firmware
  rm -rf "${pkgdir}/lib/firmware"
  # gzip -9 all modules to save 100MB of space
  find "${pkgdir}" -name '*.ko' |xargs -P 2 -n 1 gzip -9
  # make room for external modules
  ln -s "../extramodules-${_basekernel}-${_kernelname:-ARCH}" "${pkgdir}/lib/modules/${_kernver}/extramodules"
  # add real version for building modules and running depmod from post_install/upgrade
  mkdir -p "${pkgdir}/lib/modules/extramodules-${_basekernel}-${_kernelname:-ARCH}"
  echo "${_kernver}" > "${pkgdir}/lib/modules/extramodules-${_basekernel}-${_kernelname:-ARCH}/version"

  # Now we call depmod...
  depmod -b "$pkgdir" -F System.map "$_kernver"

  # move module tree /lib -> /usr/lib
  mkdir -p "${pkgdir}/usr"
  mv "$pkgdir/lib" "$pkgdir/usr"
}

_package-headers() {
  pkgdesc="Header files and scripts for building modules for linux kernel - ${_desc}"
  provides=("linux-headers=${pkgver}")
  conflicts=('linux-headers')
  replaces=('linux-mvebu-headers')

  install -dm755 "${pkgdir}/usr/lib/modules/${_kernver}"

  cd "${srcdir}/${_srcname}"
  install -D -m644 Makefile \
    "${pkgdir}/usr/lib/modules/${_kernver}/build/Makefile"
  install -D -m644 kernel/Makefile \
    "${pkgdir}/usr/lib/modules/${_kernver}/build/kernel/Makefile"
  install -D -m644 .config \
    "${pkgdir}/usr/lib/modules/${_kernver}/build/.config"

  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/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/${i} "${pkgdir}/usr/lib/modules/${_kernver}/build/include/"
  done

  # copy arch includes for external modules
  mkdir -p ${pkgdir}/usr/lib/modules/${_kernver}/build/arch/$KARCH
  cp -a arch/$KARCH/include ${pkgdir}/usr/lib/modules/${_kernver}/build/arch/$KARCH/
  mkdir -p ${pkgdir}/usr/lib/modules/${_kernver}/build/arch/$KARCH/mach-omap2
  cp -a arch/$KARCH/mach-omap2/include ${pkgdir}/usr/lib/modules/${_kernver}/build/arch/$KARCH/mach-omap2/
  mkdir -p ${pkgdir}/usr/lib/modules/${_kernver}/build/arch/$KARCH/mach-mvebu
  cp -a arch/$KARCH/mach-mvebu/include ${pkgdir}/usr/lib/modules/${_kernver}/build/arch/$KARCH/mach-mvebu/
  mkdir -p ${pkgdir}/usr/lib/modules/${_kernver}/build/arch/$KARCH/plat-omap
  cp -a arch/$KARCH/plat-omap/include ${pkgdir}/usr/lib/modules/${_kernver}/build/arch/$KARCH/plat-omap/

  # copy files necessary for later builds, like nvidia and vmware
  cp Module.symvers "${pkgdir}/usr/lib/modules/${_kernver}/build"
  cp -a scripts "${pkgdir}/usr/lib/modules/${_kernver}/build"

  # fix permissions on scripts dir
  chmod og-w -R "${pkgdir}/usr/lib/modules/${_kernver}/build/scripts"
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/.tmp_versions"

  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/arch/${KARCH}/kernel"

  cp arch/${KARCH}/Makefile "${pkgdir}/usr/lib/modules/${_kernver}/build/arch/${KARCH}/"

  cp arch/${KARCH}/kernel/asm-offsets.s "${pkgdir}/usr/lib/modules/${_kernver}/build/arch/${KARCH}/kernel/"

  # add docbook makefile
  install -D -m644 Documentation/DocBook/Makefile \
    "${pkgdir}/usr/lib/modules/${_kernver}/build/Documentation/DocBook/Makefile"

  # add dm headers
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/md"
  cp drivers/md/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/md"

  # add inotify.h
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/include/linux"
  cp include/linux/inotify.h "${pkgdir}/usr/lib/modules/${_kernver}/build/include/linux/"

  # add wireless headers
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/net/mac80211/"
  cp net/mac80211/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/net/mac80211/"

  # add dvb headers for external modules
  # in reference to:
  # http://bugs.archlinux.org/task/9912
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/dvb-core"
  cp drivers/media/dvb-core/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/dvb-core/"
  # and...
  # http://bugs.archlinux.org/task/11194
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/include/config/dvb/"
  cp include/config/dvb/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/include/config/dvb/"

  # add dvb headers for http://mcentral.de/hg/~mrec/em28xx-new
  # in reference to:
  # http://bugs.archlinux.org/task/13146
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/dvb-frontends/"
  cp drivers/media/dvb-frontends/lgdt330x.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/dvb-frontends/"
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/i2c/"
  cp drivers/media/i2c/msp3400-driver.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/i2c/"

  # add dvb headers
  # in reference to:
  # http://bugs.archlinux.org/task/20402
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/usb/dvb-usb"
  cp drivers/media/usb/dvb-usb/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/usb/dvb-usb/"
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/dvb-frontends"
  cp drivers/media/dvb-frontends/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/dvb-frontends/"
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/tuners"
  cp drivers/media/tuners/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/tuners/"

  # add xfs and shmem for aufs building
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/fs/xfs"
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/mm"

  # copy in Kconfig files
  for i in $(find . -name "Kconfig*"); do
    mkdir -p "${pkgdir}"/usr/lib/modules/${_kernver}/build/`echo ${i} | sed 's|/Kconfig.*||'`
    cp ${i} "${pkgdir}/usr/lib/modules/${_kernver}/build/${i}"
  done

  chown -R root.root "${pkgdir}/usr/lib/modules/${_kernver}/build"
  find "${pkgdir}/usr/lib/modules/${_kernver}/build" -type d -exec chmod 755 {} \;

  # strip scripts directory
  find "${pkgdir}/usr/lib/modules/${_kernver}/build/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

  # remove unneeded architectures
  rm -rf "${pkgdir}"/usr/lib/modules/${_kernver}/build/arch/{alpha,arc,arm26,arm64,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,x86,xtensa}
}

_package-smileplug() {
  pkgdesc="The Linux Kernel - ${_desc} - Marvell SMILE Plug"
  depends=('linux-armv7')
  conflicts=('linux-armv7-mirabox' 'linux-armv7-ax3')
  replaces=('linux-mvebu-smileplug')

  cd "${srcdir}/${_srcname}"

  mkdir -p "${pkgdir}/boot"
  cat arch/$KARCH/boot/zImage arch/$KARCH/boot/dts/armada-370-smileplug.dtb > myimage
  mkimage -A arm -O linux -T kernel -C none -a 0x00008000 -e 0x00008000 -n "${pkgname}" -d myimage "${pkgdir}/boot/uImage"
}

_package-mirabox() {
  pkgdesc="The Linux Kernel - ${_desc} - Globalscale Mirabox"
  depends=('linux-armv7')
  conflicts=('linux-armv7-smileplug' 'linux-armv7-ax3')
  replaces=('linux-mvebu-mirabox')

  cd "${srcdir}/${_srcname}"

  mkdir -p "${pkgdir}/boot"
  cat arch/$KARCH/boot/zImage arch/$KARCH/boot/dts/armada-370-mirabox.dtb > myimage
  mkimage -A arm -O linux -T kernel -C none -a 0x00008000 -e 0x00008000 -n "${pkgname}" -d myimage "${pkgdir}/boot/uImage"
}

_package-ax3() {
  pkgdesc="The Linux Kernel - ${_desc} - OpenBlocks AX3-4"
  depends=('linux-armv7')
  conflicts=('linux-armv7-mirabox' 'linux-armv7-smileplug')
  replaces=('linux-mvebu-ax3')

  cd "${srcdir}/${_srcname}"

  mkdir -p "${pkgdir}/boot"
  cat arch/$KARCH/boot/zImage arch/$KARCH/boot/dts/armada-xp-openblocks-ax3-4.dtb > myimage
  mkimage -A arm -O linux -T kernel -C none -a 0x00008000 -e 0x00008000 -n "${pkgname}" -d myimage "${pkgdir}/boot/uImage"
}

pkgname=("${pkgbase}" "${pkgbase}-headers" "${pkgbase}-smileplug" "${pkgbase}-mirabox" "${pkgbase}-ax3")
for _p in ${pkgname[@]}; do
  eval "package_${_p}() {
    _package${_p#${pkgbase}}
  }"
done