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+# Maintainer: Levente Polyak <anthraxx[at]archlinux[dot]org>
+# Contributor: Daniel Micay <danielmicay@gmail.com>
+# Contributor: Tobias Powalowski <tpowa@archlinux.org>
+# Contributor: Thomas Baechler <thomas@archlinux.org>
+
+pkgbase=linux-libre-hardened-ck
+_majver=4.16
+_minver=6
+_fullver=${_majver}.${_minver}
+_basever=${_majver}-gnu
+_pkgver=${_fullver}-gnu
+_hardver=a
+_NUMAdisable=y
+_ckpatchversion=1
+_ckpatchname="patch-4.16-ck${_ckpatchversion}"
+_gcc_more_v='20180310'
+_srcname=linux-${_majver}
+pkgver=${_fullver}.${_hardver}
+pkgrel=1
+url='https://github.com/anthraxx/linux-hardened'
+#url='http://ck.kolivas.org/patches/'
+arch=('x86_64')
+license=('GPL2')
+makedepends=('xmlto' 'kmod' 'inetutils' 'bc' 'libelf')
+options=('!strip')
+source=(https://linux-libre.fsfla.org/pub/linux-libre/releases/${_basever}/linux-libre-${_basever}.tar.xz{,.sign}
+        https://linux-libre.fsfla.org/pub/linux-libre/releases/${_pkgver}/patch-${_basever}-${_pkgver}.xz{,.sign}
+        https://github.com/anthraxx/linux-hardened/releases/download/${_fullver}.${_hardver}/linux-hardened-${_fullver}.${_hardver}.patch{,.sig}
+        patch-4.16-ck1.patch
+        #http://ck.kolivas.org/patches/4.0/4.16/4.16-ck${_ckpatchversion}/${_ckpatchname}.xz
+        enable_additional_cpu_optimizations-$_gcc_more_v.tar.gz::https://github.com/graysky2/kernel_gcc_patch/archive/$_gcc_more_v.tar.gz
+        #https://github.com/graysky2/kernel_gcc_patch/raw/master/enable_additional_cpu_optimizations_for_gcc_v4.9+_kernel_v4.13+.patch
+        regdom-hack-${_fullver}.patch
+        config.x86_64  # the main kernel config files
+        60-linux.hook  # pacman hook for depmod
+        90-linux.hook  # pacman hook for initramfs regeneration
+        linux.preset   # standard config files for mkinitcpio ramdisk
+
+        # https://bugs.archlinux.org/task/56711
+        drm-i915-edp-Only-use-the-alternate-fixed-mode-if-its-asked-for.patch
+        fix-vboxguest-on-guests-with-more-than-4G-RAM.patch
+)
+sha256sums=('5bd4ee95a0a9d7d2f962504f4b684b441b07f5a136e8bb8ad959f2d29ab9b913'
+            'SKIP'
+            '07f671e3bf9ea10918f146c1fd96eaa6da6410e91256665f3d36699de9952f65'
+            'SKIP'
+            '587477338e3c34e31c8d895bae9bed6847d6b0b5ad318460733ee9213730315f'
+            'SKIP'
+            '7fa37d0804ede48520c6f2ff9c0cff7e1747c202ee566198cdf2eeeaf6ae312f'
+            'b2c1292e06544465b636543e6ac8a01959470d32ce3664460721671f1347c815'
+            'e7ebf050c22bcec0028c0b3c79fd6d3913b0370ecc6a23dfe78ce475630cf503'
+            'c25b9b025ae48a2855eae0eda28bc1463603d209e6f0f8a2ab379a077115361a'
+            'ae2e95db94ef7176207c690224169594d49445e04249d2499e9d2fbc117a0b21'
+            '75f99f5239e03238f88d1a834c50043ec32b1dc568f2cc291b07d04718483919'
+            'ad6344badc91ad0630caacde83f7f9b97276f80d26a20619a87952be65492c65'
+            'c08d12c699398ef88b764be1837b9ee11f2efd3188bd1bf4e8f85dfbeee58148'
+            'b1c1cf770b2baab046d52687ec3dd83c543e3f45b4abeae2686c814673e0a1c5')
+validpgpkeys=(
+              '474402C8C582DAFBE389C427BCB7CF877E7D47A7' # Alexandre Oliva
+              '65EEFE022108E2B708CBFCF7F9E712E59AF5F22A' # Daniel Micay
+              'E240B57E2C4630BA768E2F26FC1B547C8D8172C8' # Levente Polyak
+             )
+_kernelname=${pkgbase#linux-libre}
+: ${_kernelname:=-ARCH}
+
+prepare() {
+  cd ${_srcname}
+
+  # add upstream patch
+  msg2 "Applying upstream patch"
+  patch -p1 -i "${srcdir}/patch-${_basever}-${_pkgver}"
+
+  # Hotfixes
+  msg2 "Applying hotfixes"
+  patch -p1 -i "${srcdir}/drm-i915-edp-Only-use-the-alternate-fixed-mode-if-its-asked-for.patch"
+  patch -p1 -i "${srcdir}/fix-vboxguest-on-guests-with-more-than-4G-RAM.patch"
+  
+  # fix naming schema in EXTRAVERSION of ck patch set
+  #sed -i -re "s/^(.EXTRAVERSION).*$/\1 = /" "../${_ckpatchname}"
+
+  # linux hardened patch
+  msg2 "Applying hardened patch"
+  patch -p1 -i "${srcdir}/linux-hardened-${pkgver}.patch"
+
+  # Patch source with ck patchset
+  msg2 "Applying ck patch"
+  #patch -p1 -i "${srcdir}/${_ckpatchname}"
+  patch -p1 -i "${srcdir}/${_ckpatchname}.patch"
+
+  # Patch source to unlock additional gcc CPU optimizatons
+  # https://github.com/graysky2/kernel_gcc_patch
+  msg2 "Applying graysky2 patch"
+  patch -p1 -i "${srcdir}/kernel_gcc_patch-$_gcc_more_v/enable_additional_cpu_optimizations_for_gcc_v4.9+_kernel_v4.13+.patch"
+
+  # graysky2 gcc patch
+  #patch -p1 -i "${srcdir}/enable_additional_cpu_optimizations_for_gcc_v4.9+_kernel_v4.13+.patch"
+
+  # Ignore ath9k eeprom patch
+  patch -p1 -i "${srcdir}/regdom-hack-${_fullver}.patch"
+
+
+  # add latest fixes from stable queue, if needed
+  # http://git.kernel.org/?p=linux/kernel/git/stable/stable-queue.git
+
+  cat ../config.x86_64 - >.config <<END
+CONFIG_LOCALVERSION="${_kernelname}"
+CONFIG_LOCALVERSION_AUTO=n
+END
+
+  # set extraversion to pkgrel and empty localversion
+  sed -e "/^EXTRAVERSION =/s/=.*/= -${pkgrel}/" \
+      -e "/^EXTRAVERSION =/aLOCALVERSION =" \
+      -i Makefile
+
+  ### Optionally disable NUMA for 64-bit kernels only
+  # (x86 kernels do not support NUMA)
+  if [ -n "$_NUMAdisable" ]; then
+    msg "Disabling NUMA from kernel config..."
+    sed -i -e 's/CONFIG_NUMA=y/# CONFIG_NUMA is not set/' \
+      -i -e '/CONFIG_AMD_NUMA=y/d' \
+      -i -e '/CONFIG_X86_64_ACPI_NUMA=y/d' \
+      -i -e '/CONFIG_NODES_SPAN_OTHER_NODES=y/d' \
+      -i -e '/# CONFIG_NUMA_EMU is not set/d' \
+      -i -e '/CONFIG_NODES_SHIFT=2/d' \
+      -i -e '/CONFIG_NEED_MULTIPLE_NODES=y/d' \
+      -i -e '/# CONFIG_MOVABLE_NODE is not set/d' \
+      -i -e '/CONFIG_USE_PERCPU_NUMA_NODE_ID=y/d' \
+      -i -e '/CONFIG_ACPI_NUMA=y/d' ./.config
+  fi
+
+  # 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 ${_srcname}
+
+  make bzImage modules
+}
+
+_package() {
+  pkgdesc="The ${pkgbase/linux/Linux} kernel and modules"
+  [ "${pkgbase}" = "linux-hardened" ] && groups=('base')
+  depends=('coreutils' 'linux-libre-firmware' 'kmod' 'mkinitcpio>=0.7')
+  optdepends=('crda: to set the correct wireless channels of your country')
+  backup=("etc/mkinitcpio.d/${pkgbase}.preset")
+  install=linux.install
+
+  cd ${_srcname}
+
+  # get kernel version
+  _kernver="$(make kernelrelease)"
+  _basekernel=${_kernver%%-*}
+  _basekernel=${_basekernel%.*}
+
+  mkdir -p "${pkgdir}"/{boot,usr/lib/modules}
+  make INSTALL_MOD_PATH="${pkgdir}/usr" modules_install
+  cp arch/x86/boot/bzImage "${pkgdir}/boot/vmlinuz-${pkgbase}"
+
+  # make room for external modules
+  local _extramodules="extramodules-${_basekernel}${_kernelname}"
+  ln -s "../${_extramodules}" "${pkgdir}/usr/lib/modules/${_kernver}/extramodules"
+
+  # add real version for building modules and running depmod from hook
+  echo "${_kernver}" |
+    install -Dm644 /dev/stdin "${pkgdir}/usr/lib/modules/${_extramodules}/version"
+
+  # remove build and source links
+  rm "${pkgdir}"/usr/lib/modules/${_kernver}/{source,build}
+
+  # now we call depmod...
+  depmod -b "${pkgdir}/usr" -F System.map "${_kernver}"
+
+  # add vmlinux
+  install -Dt "${pkgdir}/usr/lib/modules/${_kernver}/build" -m644 vmlinux
+
+  # sed expression for following substitutions
+  local _subst="
+    s|%PKGBASE%|${pkgbase}|g
+    s|%KERNVER%|${_kernver}|g
+    s|%EXTRAMODULES%|${_extramodules}|g
+  "
+
+  # hack to allow specifying an initially nonexisting install file
+  sed "${_subst}" "${startdir}/${install}" > "${startdir}/${install}.pkg"
+  true && install=${install}.pkg
+
+  # install mkinitcpio preset file
+  sed "${_subst}" ../linux.preset |
+    install -Dm644 /dev/stdin "${pkgdir}/etc/mkinitcpio.d/${pkgbase}.preset"
+
+  # install pacman hooks
+  sed "${_subst}" ../60-linux.hook |
+    install -Dm644 /dev/stdin "${pkgdir}/usr/share/libalpm/hooks/60-${pkgbase}.hook"
+  sed "${_subst}" ../90-linux.hook |
+    install -Dm644 /dev/stdin "${pkgdir}/usr/share/libalpm/hooks/90-${pkgbase}.hook"
+}
+
+_package-headers() {
+  pkgdesc="Header files and scripts for building modules for ${pkgbase/linux/Linux} kernel"
+
+  cd ${_srcname}
+  local _builddir="${pkgdir}/usr/lib/modules/${_kernver}/build"
+
+  install -Dt "${_builddir}" -m644 Makefile .config Module.symvers
+  install -Dt "${_builddir}/kernel" -m644 kernel/Makefile
+
+  mkdir "${_builddir}/.tmp_versions"
+
+  cp -t "${_builddir}" -a include scripts
+
+  install -Dt "${_builddir}/arch/x86" -m644 arch/x86/Makefile
+  install -Dt "${_builddir}/arch/x86/kernel" -m644 arch/x86/kernel/asm-offsets.s
+
+  cp -t "${_builddir}/arch/x86" -a arch/x86/include
+
+  install -Dt "${_builddir}/drivers/md" -m644 drivers/md/*.h
+  install -Dt "${_builddir}/net/mac80211" -m644 net/mac80211/*.h
+
+  # http://bugs.archlinux.org/task/13146
+  install -Dt "${_builddir}/drivers/media/i2c" -m644 drivers/media/i2c/msp3400-driver.h
+
+  # http://bugs.archlinux.org/task/20402
+  install -Dt "${_builddir}/drivers/media/usb/dvb-usb" -m644 drivers/media/usb/dvb-usb/*.h
+  install -Dt "${_builddir}/drivers/media/dvb-frontends" -m644 drivers/media/dvb-frontends/*.h
+  install -Dt "${_builddir}/drivers/media/tuners" -m644 drivers/media/tuners/*.h
+
+  # add xfs and shmem for aufs building
+  mkdir -p "${_builddir}"/{fs/xfs,mm}
+
+  # copy in Kconfig files
+  find . -name Kconfig\* -exec install -Dm644 {} "${_builddir}/{}" \;
+
+  # add objtool for external module building and enabled VALIDATION_STACK option
+  install -Dt "${_builddir}/tools/objtool" tools/objtool/objtool
+
+  # remove unneeded architectures
+  local _arch
+  for _arch in "${_builddir}"/arch/*/; do
+    [[ ${_arch} == */x86/ ]] && continue
+    rm -r "${_arch}"
+  done
+
+  # remove files already in linux-libre-docs package
+  rm -r "${_builddir}/Documentation"
+
+  # remove now broken symlinks
+  find -L "${_builddir}" -type l -printf 'Removing %P\n' -delete
+
+  # Fix permissions
+  chmod -R u=rwX,go=rX "${_builddir}"
+
+  # strip scripts directory
+  local _binary _strip
+  while read -rd '' _binary; do
+    case "$(file -bi "${_binary}")" in
+      *application/x-sharedlib*)  _strip="${STRIP_SHARED}"   ;; # Libraries (.so)
+      *application/x-archive*)    _strip="${STRIP_STATIC}"   ;; # Libraries (.a)
+      *application/x-executable*) _strip="${STRIP_BINARIES}" ;; # Binaries
+      *) continue ;;
+    esac
+    /usr/bin/strip ${_strip} "${_binary}"
+  done < <(find "${_builddir}/scripts" -type f -perm -u+w -print0 2>/dev/null)
+}
+
+_package-docs() {
+  pkgdesc="Kernel hackers manual - HTML documentation that comes with the ${pkgbase/linux/Linux} kernel"
+
+  cd ${_srcname}
+  local _builddir="${pkgdir}/usr/lib/modules/${_kernver}/build"
+
+  mkdir -p "${_builddir}"
+  cp -t "${_builddir}" -a Documentation
+
+  # Fix permissions
+  chmod -R u=rwX,go=rX "${_builddir}"
+}
+
+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: