PKGBUILDs/core/linux-oak/PKGBUILD

# ChromiumOS kernel for Oak Chromebooks
# Maintainer: Kevin Mihelich <kevin@archlinuxarm.org>

buildarch=8

pkgbase=linux-oak
_kernelname=${pkgbase#linux}
_desc="Oak Chromebooks"
pkgver=3.18.0
pkgrel=11
_commit=5fe5d5aecd795dc5056440c6e401989eeac5d47c
arch=('aarch64')
url="https://chromium.googlesource.com/chromiumos/third_party/kernel/+/chromeos-3.18"
license=('GPL2')
makedepends=('xmlto' 'docbook-xsl' 'kmod' 'inetutils' 'bc' 'git' 'uboot-tools' 'vboot-utils' 'dtc')
options=('!strip')
source=("https://chromium.googlesource.com/chromiumos/third_party/kernel/+archive/${_commit}.tar.gz"
        '0001-kbuild-move-Wunused-const-variable-to-W-1-warning-le.patch'
        '0002-md-fix-a-build-warning.patch'
        '0003-netfilter-Fix-switch-statement-warnings-with-recent-.patch'
        '0004-netfilter-nfnetlink_cthelper-Remove-const-and-to-avo.patch'
        '0005-netfilter-Add-some-missing-default-cases-to-switch-s.patch'
        '0006-usbtv-remove-unused-variable.patch'
        '0007-add-extra-errata-843419-build-flags.patch'
        '0008-Downgrade-mmc1-speed.patch'
        '0009-disable-new-gcc-7.1.1-warnings-for-now.patch'
        '0010-UPSTREAM-mwifiex-scan-Simplify-code.patch'
        '0011-media-ir-core-fix-gcc-7-warning-on-bool-arithmetic.patch'
        '0012-sched-fix-duplicate-const-error-on-gcc-7.patch'
        '0013-staging-iio-light-isl29018-fix-duplicate-const-error.patch'
        'config'
        'kernel.its'
        'kernel.keyblock'
        'kernel_data_key.vbprivk'
        'cmdline')
md5sums=('a8f05f181b203eb0b7181a1c758f0d02'
         'b0245f5b0ffd211ef356c3938bb9691d'
         '1ff1d92e5506ea3b150e286a1791cae3'
         '44325bb24aef330147e2fa2057a00a4a'
         '661c6a6513c4303a7c9736083205a9a4'
         'fa9119c1af1a445c59d64a44cf4262ce'
         '395c77cb0a834befdba3df49d4d82eed'
         '46c4454f5eddb64efecfb56073c6ef64'
         'dde4fe4cf04ef35d21e35e0d5b50d1a8'
         'f5a0fe61d4be9204a105f168fb892dfc'
         '18ccf5cda146f5141a5104caafe6df18'
         '3c24f23d6c47e9b13739dba603b2d9e0'
         '9a5ed78ec0a28e646538dc17ca744b61'
         '54c0375c456bc7ef03f5ad2a39915044'
         'ee8aa1e9419470262f6307cc876bc94a'
         'aef13cb59516e9313cb8947350f717d6'
         '61c5ff73c136ed07a7aadbf58db3d96a'
         '584777ae88bce2c5659960151b64c7d8'
         'caac3e4ace66a81a3e0a3e7348e99098')

prepare() {
  git apply 0001-kbuild-move-Wunused-const-variable-to-W-1-warning-le.patch
  git apply 0002-md-fix-a-build-warning.patch
  git apply 0003-netfilter-Fix-switch-statement-warnings-with-recent-.patch
  git apply 0004-netfilter-nfnetlink_cthelper-Remove-const-and-to-avo.patch
  git apply 0005-netfilter-Add-some-missing-default-cases-to-switch-s.patch
  git apply 0006-usbtv-remove-unused-variable.patch
  git apply 0007-add-extra-errata-843419-build-flags.patch
  git apply 0008-Downgrade-mmc1-speed.patch
  git apply 0009-disable-new-gcc-7.1.1-warnings-for-now.patch
  git apply 0010-UPSTREAM-mwifiex-scan-Simplify-code.patch
  git apply 0011-media-ir-core-fix-gcc-7-warning-on-bool-arithmetic.patch
  git apply 0012-sched-fix-duplicate-const-error-on-gcc-7.patch
  git apply 0013-staging-iio-light-isl29018-fix-duplicate-const-error.patch

  cp 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

  unset LDFLAGS
  cp include/linux/compiler-gcc5.h include/linux/compiler-gcc6.h
  cp include/linux/compiler-gcc5.h include/linux/compiler-gcc7.h
}

build() {
  # 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} Image modules dtbs
}

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

  KARCH=arm64

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

  mkdir -p "${pkgdir}"/{lib/modules,lib/firmware}
  make INSTALL_MOD_PATH="${pkgdir}" modules_install
  make INSTALL_DTBS_PATH="${pkgdir}/boot/dtbs" dtbs_install
  
  mkimage -D "-I dts -O dtb -p 2048" -f kernel.its vmlinux.uimg
  dd if=/dev/zero of=bootloader.bin bs=512 count=1
  vbutil_kernel \
    --pack vmlinux.kpart \
    --version 1 \
    --vmlinuz vmlinux.uimg \
    --arch aarch64 \
    --keyblock kernel.keyblock \
    --signprivate kernel_data_key.vbprivk \
    --config cmdline \
    --bootloader bootloader.bin

  cp vmlinux.kpart "${pkgdir}/boot"

  # 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"

  # install ChromeOS mwifiex firmware
  #mkdir -p "${pkgdir}"/usr/lib/firmware/mrvl
  #cp sd{8787,8797,8897}_uapsta_cros.bin "${pkgdir}"/usr/lib/firmware/mrvl

  # install ChromeOS brcm firmware
  #mkdir -p "${pkgdir}"/usr/lib/firmware/brcm
  #mkdir -p "${pkgdir}"/usr/lib/udev/rules.d
  #cp BCM4354_003.001.012.0306.0659.hcd brcmfmac4354-sdio.txt "${pkgdir}"/usr/lib/firmware/brcm
  #cp 99-veyron-brcm.rules "${pkgdir}"/usr/lib/udev/rules.d
}

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

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

  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 clocksource 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/

  # 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,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}
}

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