# Maintainer: André Silva <emulatorman@parabola.nu>
# Contributor: Nicolás Reynolds <fauno@kiwwwi.com.ar>
# Contributor: Sorin-Mihai Vârgolici <smv@yobicore.org>
# Contributor: Michał Masłowski <mtjm@mtjm.eu>
# Contributor: Márcio Silva <coadde@parabola.nu>
# Contributor: Luke Shumaker <lukeshu@sbcglobal.net>
# Contributor: Luke R. <g4jc@openmailbox.org>

# Based on linux package

pkgbase=linux-libre         # Build stock kernel
#pkgbase=linux-libre-custom # Build kernel with a different name
_pkgbasever=4.10-gnu
_pkgver=4.10.3-gnu

_replacesarchkernel=('linux%') # '%' gets replaced with _kernelname
_replacesoldkernels=() # '%' gets replaced with _kernelname
_replacesoldmodules=() # '%' gets replaced with _kernelname

_srcname=linux-${_pkgbasever%-*}
_archpkgver=${_pkgver%-*}
pkgver=${_pkgver//-/_}
pkgrel=1
rcnrel=armv7-x1
arch=('i686' 'x86_64' 'armv7h')
url="https://linux-libre.fsfla.org/"
license=('GPL2')
makedepends=('xmlto' 'docbook-xsl' 'kmod' 'inetutils' 'bc' 'libelf')
makedepends_armv7h=('git')
options=('!strip')
source=("https://linux-libre.fsfla.org/pub/linux-libre/releases/${_pkgbasever}/linux-libre-${_pkgbasever}.tar.xz"
        "https://linux-libre.fsfla.org/pub/linux-libre/releases/${_pkgbasever}/linux-libre-${_pkgbasever}.tar.xz.sign"
        "https://linux-libre.fsfla.org/pub/linux-libre/releases/${_pkgver}/patch-${_pkgbasever}-${_pkgver}.xz"
        "https://linux-libre.fsfla.org/pub/linux-libre/releases/${_pkgver}/patch-${_pkgbasever}-${_pkgver}.xz.sign"
        "https://repo.parabola.nu/other/linux-libre/logos/logo_linux_clut224.ppm"
        "https://repo.parabola.nu/other/linux-libre/logos/logo_linux_clut224.ppm.sig"
        "https://repo.parabola.nu/other/linux-libre/logos/logo_linux_mono.pbm"
        "https://repo.parabola.nu/other/linux-libre/logos/logo_linux_mono.pbm.sig"
        "https://repo.parabola.nu/other/linux-libre/logos/logo_linux_vga16.ppm"
        "https://repo.parabola.nu/other/linux-libre/logos/logo_linux_vga16.ppm.sig"
        # the main kernel config files
        'config.i686' 'config.x86_64' 'config.armv7h'
        # pacman hook for initramfs regeneration
        '99-linux.hook'
        # standard config files for mkinitcpio ramdisk
        'linux.preset'
        '0001-usb-serial-gadget-no-TTY-hangup-on-USB-disconnect-WI.patch'
        '0002-fix-Atmel-maXTouch-touchscreen-support.patch'
        # armv7h patches
        "https://repo.parabola.nu/other/rcn-libre/patches/${_pkgver%-*}/rcn-libre-${_pkgver%-*}-${rcnrel}.patch"
        "https://repo.parabola.nu/other/rcn-libre/patches/${_pkgver%-*}/rcn-libre-${_pkgver%-*}-${rcnrel}.patch.sig"
        '0001-ARM-atags-add-support-for-Marvell-s-u-boot.patch'
        '0002-ARM-atags-fdt-retrieve-MAC-addresses-from-Marvell-bo.patch'
        '0003-SMILE-Plug-device-tree-file.patch'
        '0004-fix-mvsdio-eMMC-timing.patch'
        '0005-net-smsc95xx-Allow-mac-address-to-be-set-as-a-parame.patch'
        '0006-ARM-TLV320AIC23-SoC-Audio-Codec-Fix-errors-reported-.patch'
        '0007-set-default-cubietruck-led-triggers.patch'
        '0008-exynos4412-odroid-set-higher-minimum-buck2-regulator.patch'
        '0009-drm-armada-tracing-fix.patch'
        '0010-disable-USB3-port-on-ODROID-XU.patch')
sha512sums=('44d1774a1d43a15322297d351737fbcbf92c6f433266ce2b17587437d433562cf5811fdae48fafd5a8e00d18ed9ac2e1ad4b12a657f322eb234384316ad131e0'
            'SKIP'
            'c2e674578fa3b0e86941009034c69aea09267b322e0a58f7850c7e5b79db69486d1ada277a37825e94dcbbd4798ee56655db1900dabf34f00097f331d08e5fc6'
            'SKIP'
            '13cb5bc42542e7b8bb104d5f68253f6609e463b6799800418af33eb0272cc269aaa36163c3e6f0aacbdaaa1d05e2827a4a7c4a08a029238439ed08b89c564bb3'
            'SKIP'
            '267295aa0cea65684968420c68b32f1a66a22d018b9d2b2c1ef14267bcf4cb68aaf7099d073cbfefe6c25c8608bdcbbd45f7ac8893fdcecbf1e621abdfe9ecc1'
            'SKIP'
            '7a3716bfe3b9f546da309c7492f3e08f8f506813afeb1c737a474c83313d5c313cf4582b65215c2cfce3b74d9d1021c96e8badafe8f6e5b01fe28d2b5c61ae78'
            'SKIP'
            '9f402a1a61887d85966108446bbc71f9b98c44e09ed226ea21fd01edea992c55168b991ee8207b4635663a07d3df4babc379491eed65695440772e46a6dc015a'
            'bc6b1208be9a939e4831e91c27df1553510e359b4915afb071b3816a97cde9c65f306f61a9bee0a624f6439c232b102e62572126e9e1d0cf31715dacfdaa85fc'
            '82b94244d3c641921b0e04da28faba10bc6b04ce94258ad01174166ed9c99acced8895d979c120cacf9cc9fcad4e1d7f57c0af655316c73cc3b093f2fd48d890'
            'd6faa67f3ef40052152254ae43fee031365d0b1524aa0718b659eb75afc21a3f79ea8d62d66ea311a800109bed545bc8f79e8752319cd378eef2cbd3a09aba22'
            '2dc6b0ba8f7dbf19d2446c5c5f1823587de89f4e28e9595937dd51a87755099656f2acec50e3e2546ea633ad1bfd1c722e0c2b91eef1d609103d8abdc0a7cbaf'
            '02af4dd2a007e41db0c63822c8ab3b80b5d25646af1906dc85d0ad9bb8bbf5236f8e381d7f91cf99ed4b0978c50aee37cb9567cdeef65b7ec3d91b882852b1af'
            'b8fe56e14006ab866970ddbd501c054ae37186ddc065bb869cf7d18db8c0d455118d5bda3255fb66a0dde38b544655cfe9040ffe46e41d19830b47959b2fb168'
            '84d9cc5a46ce437ffbb83525d72473ba00ed7ab9012af52a1e0226a22380b2224a48a1bce4e1030e08dfbdde0b760702217b5107673d62770eea26d503a42e0c'
            'SKIP'
            'dd4e2482d6e3d91d00e37e665933515a4fa876d39c036d639f21c48a09f03202f3dec0dbe04b7c60c4b7e1f49617b5f94ace688afacbe33dc6d6818c0c797031'
            'cf0a3061cef91c04fa5e6d50c4ee235f817cb97f6b7a77f42d42ada707e71bd9731dfafdfcf396e767362998acd8b98ad9942a989c2dd8457e57177c354ec7d2'
            '6866b84fac93df7eb669f71ed0041270a5f7254bddf6e4f3de7820dbf5696f09eb3051843f7f48d9ae418487ed765b203eccf4bf399d0ca95061ba0399043839'
            'f41af76bbb6727fa415bb4e7e5da1896a5f01316354d5f34bc55b3f4451e571f2302c4e66c2b949bb330241d4187d507faba83b1584907d1b66a82a60a1c8923'
            'ddf31c7db4c873c258763ddff4419315af3d06dc28f14f8d48b0d99e35ecd953d02a992da414c8dd1b9fd9f2bb12580393a541a3064051ece1fa6e173fc52ba2'
            'df749d4d4f71b4514f526941af592cc11eec13214375e7c0088b84558b56508bf444ea70fb93a0c114a03cd4efd559ea816deb670064fa91f02c7b7f7483d57d'
            'd1c6d28d22724f9d3700f5d8350164ddba7e6f64980a8d25ebb7cbcffa83250125f337e91510a925deb10bc1e30ac999cb18f3427e051e00d82f5bbaf8a848ec'
            'd14cedaf275ea1337b18a75d72b7610cb96f982896542edc0a59306c10888d62594b8a36197e33d079e6d5a9b5d20f46892b96a2d3aab5258013f0e5991e3f9b'
            '0a806db7df7761f5dc64b8a3b3860c6c9216cecfe135778f3019e51e1245bcc34980c6124a11447285b18e284547ffc57a4b2c1290b4dd91a55b0237a7007cc9'
            'c02d0e1d6b399c84323937a81b702fd3ac7c6f9e08254d1697858f829fd045ee33d5952d42eb22558c290efe7fd5d8fdd7695d8ef3526742a67052fb9e303ebe')
validpgpkeys=(
              '474402C8C582DAFBE389C427BCB7CF877E7D47A7' # Alexandre Oliva
              'C92BAA713B8D53D3CAE63FC9E6974752F9704456' # André Silva
              '684D54A189305A9CC95446D36B888913DDB59515' # Márcio Silva
)

_kernelname=${pkgbase#linux-libre}
_replacesarchkernel=("${_replacesarchkernel[@]/\%/${_kernelname}}")
_replacesoldkernels=("${_replacesoldkernels[@]/\%/${_kernelname}}")
_replacesoldmodules=("${_replacesoldmodules[@]/\%/${_kernelname}}")

case "${CARCH}" in
  i686|x86_64) KARCH=x86;;
  armv7h) KARCH=arm;;
esac

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

  # add upstream patch
  if [ "${_pkgbasever}" != "${_pkgver}" ]; then
    patch -p1 -i "${srcdir}/patch-${_pkgbasever}-${_pkgver}"
  fi

  if [ "${CARCH}" = "armv7h" ]; then
    # RCN patch (CM3 firmware deblobbed, AUFS and RT removed)
    # Note: For stability reasons, AUFS and RT have been removed in the RCN patch.
    # We are supporting AUFS in linux-libre-pck through PCK patch and RT through its official
    # patch in linux-libre-rt. See https://wiki.parabola.nu/PCK for further details about PCK.
    git apply -v "${srcdir}/rcn-libre-${_pkgver%-*}-${rcnrel}.patch"

    # ALARM patches
    patch -p1 -i "${srcdir}/0001-ARM-atags-add-support-for-Marvell-s-u-boot.patch"
    patch -p1 -i "${srcdir}/0002-ARM-atags-fdt-retrieve-MAC-addresses-from-Marvell-bo.patch"
    patch -p1 -i "${srcdir}/0003-SMILE-Plug-device-tree-file.patch"
    patch -p1 -i "${srcdir}/0004-fix-mvsdio-eMMC-timing.patch"
    patch -p1 -i "${srcdir}/0005-net-smsc95xx-Allow-mac-address-to-be-set-as-a-parame.patch"
    patch -p1 -i "${srcdir}/0006-ARM-TLV320AIC23-SoC-Audio-Codec-Fix-errors-reported-.patch"
    patch -p1 -i "${srcdir}/0007-set-default-cubietruck-led-triggers.patch"
    patch -p1 -i "${srcdir}/0008-exynos4412-odroid-set-higher-minimum-buck2-regulator.patch"
    patch -p1 -i "${srcdir}/0009-drm-armada-tracing-fix.patch"
    patch -p1 -i "${srcdir}/0010-disable-USB3-port-on-ODROID-XU.patch"
  fi

  # add freedo as boot logo
  install -m644 -t drivers/video/logo \
    "${srcdir}/logo_linux_"{clut224.ppm,vga16.ppm,mono.pbm}

  # add latest fixes from stable queue, if needed
  # http://git.kernel.org/?p=linux/kernel/git/stable/stable-queue.git

  # maintain the TTY over USB disconnects
  # http://www.coreboot.org/EHCI_Gadget_Debug
  patch -p1 -i "${srcdir}/0001-usb-serial-gadget-no-TTY-hangup-on-USB-disconnect-WI.patch"

  # fix Atmel maXTouch touchscreen support
  # https://labs.parabola.nu/issues/877
  # http://www.fsfla.org/pipermail/linux-libre/2015-November/003202.html
  patch -p1 -i "${srcdir}/0002-fix-Atmel-maXTouch-touchscreen-support.patch"

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

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

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

  # 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

  # rewrite configuration
  yes "" | make config >/dev/null
}

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

  if [ "${CARCH}" = "armv7h" ]; then
    make ${MAKEFLAGS} LOCALVERSION= zImage modules dtbs
  elif [ "${CARCH}" = "x86_64" ] || [ "${CARCH}" = "i686" ]; then
    make ${MAKEFLAGS} LOCALVERSION= bzImage modules
  fi
}

_package() {
  pkgdesc="The ${pkgbase^} kernel and modules"
  [ "${pkgbase}" = "linux-libre" ] && groups=('base' 'base-openrc')
  depends=('coreutils' 'linux-libre-firmware' 'kmod' 'mkinitcpio>=0.7')
  optdepends=('crda: to set the correct wireless channels of your country')
  provides=("${_replacesarchkernel[@]/%/=${_archpkgver}}")
  conflicts=("${_replacesoldkernels[@]}" "${_replacesoldmodules[@]}")
  replaces=("${_replacesoldkernels[@]}" "${_replacesoldmodules[@]}")
  backup=("etc/mkinitcpio.d/${pkgbase}.preset")
  install=linux.install

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

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

  mkdir -p "${pkgdir}"/{lib/modules,lib/firmware,boot}
  make LOCALVERSION= INSTALL_MOD_PATH="${pkgdir}" modules_install
  if [ "${CARCH}" = "armv7h" ]; then
    make LOCALVERSION= INSTALL_DTBS_PATH="${pkgdir}/boot/dtbs/${pkgbase}" dtbs_install
    cp arch/$KARCH/boot/zImage "${pkgdir}/boot/vmlinuz-${pkgbase}"
  elif [ "${CARCH}" = "x86_64" ] || [ "${CARCH}" = "i686" ]; then
    cp arch/$KARCH/boot/bzImage "${pkgdir}/boot/vmlinuz-${pkgbase}"
  fi

  # set correct depmod command for install
  sed -e "s|%PKGBASE%|${pkgbase}|g;s|%KERNVER%|${_kernver}|g" \
    "${startdir}/${install}" > "${startdir}/${install}.pkg"
  true && install=${install}.pkg

  # install mkinitcpio preset file for kernel
  if [ "${CARCH}" = "armv7h" ]; then
    sed "s|/boot/vmlinuz-%PKGBASE%|${_kernver}|g" "${srcdir}/linux.preset" |
      install -D -m644 /dev/stdin "${pkgdir}/etc/mkinitcpio.d/${pkgbase}.preset"
  elif [ "${CARCH}" = "x86_64" ] || [ "${CARCH}" = "i686" ]; then
    sed "s|%PKGBASE%|${pkgbase}|g" "${srcdir}/linux.preset" |
      install -D -m644 /dev/stdin "${pkgdir}/etc/mkinitcpio.d/${pkgbase}.preset"
  fi

  # install pacman hook for initramfs regeneration
  sed "s|%PKGBASE%|${pkgbase}|g" "${srcdir}/99-linux.hook" |
    install -D -m644 /dev/stdin "${pkgdir}/usr/share/libalpm/hooks/99-${pkgbase}.hook"

  # remove build and source links
  rm -f "${pkgdir}"/lib/modules/${_kernver}/{source,build}
  # remove the firmware
  rm -rf "${pkgdir}/lib/firmware"
  # make room for external modules
  ln -s "../extramodules-${_basekernel}${_kernelname}" "${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}"
  echo "${_kernver}" > "${pkgdir}/lib/modules/extramodules-${_basekernel}${_kernelname}/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/"

  if [ "${CARCH}" = "x86_64" ] || [ "${CARCH}" = "i686" ]; then
    # add vmlinux
    install -D -m644 vmlinux "${pkgdir}/usr/lib/modules/${_kernver}/build/vmlinux"
  fi
}

_package-headers() {
  pkgdesc="Header files and scripts for building modules for ${pkgbase^} kernel"
  provides=("${_replacesarchkernel[@]/%/-headers=${_archpkgver}}")
  conflicts=("${_replacesoldkernels[@]/%/-headers}")
  replaces=("${_replacesoldkernels[@]/%/-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 soc 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/${KARCH}/"
  if [ "${CARCH}" = "armv7h" ]; then
    for i in dove exynos omap2; do
      mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/arch/${KARCH}/mach-${i}"
      cp -a arch/${KARCH}/mach-${i}/include "${pkgdir}/usr/lib/modules/${_kernver}/build/arch/${KARCH}/mach-${i}/"
    done
    for i in omap orion samsung versatile; do
      mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/arch/${KARCH}/plat-${i}"
      cp -a arch/${KARCH}/plat-${i}/include "${pkgdir}/usr/lib/modules/${_kernver}/build/arch/${KARCH}/plat-${i}/"
    done
  fi

  # copy files necessary for later builds
  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}/"

  if [ "${CARCH}" = "i686" ]; then
    cp arch/${KARCH}/Makefile_32.cpu "${pkgdir}/usr/lib/modules/${_kernver}/build/arch/${KARCH}/"
  fi

  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"
  # removed in 3.17-gnu series
  # cp fs/xfs/xfs_sb.h "${pkgdir}/usr/lib/modules/${_kernver}/build/fs/xfs/xfs_sb.h"

  # 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

  # add objtool for external module building and enabled VALIDATION_STACK option
  if [ -f tools/objtool/objtool ];  then
      mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/tools/objtool"
      cp -a tools/objtool/objtool ${pkgdir}/usr/lib/modules/${_kernver}/build/tools/objtool/
  fi

  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
  find "${pkgdir}"/usr/lib/modules/${_kernver}/build/arch -mindepth 1 -maxdepth 1 -type d -not -name "$KARCH" -exec rm -rf {} +

  # remove files already in docs package
  rm -f "${pkgdir}/usr/lib/modules/${_kernver}/build/Documentation/kbuild/Kconfig.recursion-issue-01"
  rm -f "${pkgdir}/usr/lib/modules/${_kernver}/build/Documentation/kbuild/Kconfig.recursion-issue-02"
  rm -f "${pkgdir}/usr/lib/modules/${_kernver}/build/Documentation/kbuild/Kconfig.select-break"
}

_package-docs() {
  pkgdesc="Kernel hackers manual - HTML documentation that comes with the ${pkgbase^} kernel"
  provides=("${_replacesarchkernel[@]/%/-docs=${_archpkgver}}")
  conflicts=("${_replacesoldkernels[@]/%/-docs}")
  replaces=("${_replacesoldkernels[@]/%/-docs}")

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

  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build"
  cp -al Documentation "${pkgdir}/usr/lib/modules/${_kernver}/build"
  find "${pkgdir}" -type f -exec chmod 444 {} \;
  find "${pkgdir}" -type d -exec chmod 755 {} \;

  # remove a file already in kernel package
  rm -f "${pkgdir}/usr/lib/modules/${_kernver}/build/Documentation/DocBook/Makefile"
}

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

# vim:set ts=8 sts=2 sw=2 et: