abslibre/libre/linux-libre/PKGBUILD

# Maintainer: David P. <megver83@parabola.nu>
# Contributor: André Silva <emulatorman@hyperbola.info>
# Contributor: Márcio Silva <coadde@hyperbola.info>
# Contributor: fauno <fauno@parabola.nu>
# Contributor: Sorin-Mihai Vârgolici <smv@yobicore.org>
# Contributor: Michał Masłowski <mtjm@mtjm.eu>
# Contributor: Luke R. <g4jc@openmailbox.org>
# Contributor: Andreas Grapentin <andreas@grapentin.org>

# Based on linux package

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

pkgbase=linux-libre
pkgver=6.7.4
pkgrel=2
pkgdesc='Linux-libre'
url='https://linux-libre.fsfla.org/'
arch=(i686 x86_64 armv7h)
license=(GPL2)
makedepends=(
  bc
  cpio
  gettext
  libelf
  pahole
  perl
  python
  tar
  xz

  # htmldocs
  graphviz
  imagemagick
  python-sphinx
  texlive-latexextra
)
makedepends_armv7h=(uboot-tools vboot-utils dtc) # required by linux-libre-chromebook
options=('!strip')
_srcname=linux-6.7
source=(
  "https://linux-libre.fsfla.org/pub/linux-libre/releases/${_srcname##*-}-gnu/linux-libre-${_srcname##*-}-gnu.tar.xz"{,.sign}
  "https://linux-libre.fsfla.org/pub/linux-libre/releases/$pkgver-gnu/patch-${_srcname##*-}-gnu-$pkgver-gnu.xz"{,.sign}
  "https://repo.parabola.nu/other/linux-libre/logos/logo_linux_"{clut224.ppm,vga16.ppm,mono.pbm}{,.sig}
  config.i686 config.x86_64 config.armv7h    # the main kernel config files
  linux-armv7h.preset                        # armv7h preset file for mkinitcpio ramdisk
  "kernel"{.its,.keyblock,_data_key.vbprivk} # files for signing veyron Chromebook kernels

  # maintain the TTY over USB disconnects
  # http://www.coreboot.org/EHCI_Gadget_Debug
  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
  0002-fix-Atmel-maXTouch-touchscreen-support.patch
  # Arch Linux patches
  # https://github.com/archlinux/linux
  0001-ZEN-Add-sysctl-and-CONFIG-to-disallow-unprivileged-C.patch
  0002-drivers-firmware-skip-simpledrm-if-nvidia-drm.modese.patch
  0003-arch-Kconfig-Default-to-maximum-amount-of-ASLR-bits.patch
)
source_i686=(
  # avoid using zstd compression in ultra mode (exhausts virtual memory)
  no-ultra-zstd.patch
)
source_armv7h=(
  # Arch Linux ARM patches
  # https://github.com/archlinuxarm/PKGBUILDs/tree/master/core/linux-armv7
  0001-ARM-atags-add-support-for-Marvell-s-u-boot.patch
  0002-ARM-atags-fdt-retrieve-MAC-addresses-from-Marvell-bo.patch
  0003-fix-mvsdio-eMMC-timing.patch
  0004-net-smsc95xx-Allow-mac-address-to-be-set-as-a-parame.patch
  #0005-set-default-cubietruck-led-triggers.patch
  #0006-exynos4412-odroid-set-higher-minimum-buck2-regulator.patch
  #0007-USB-Armory-MkII-support.patch
  # ChromiumOS patch
  # https://labs.parabola.nu/issues/2372
  0001-CHROMIUM-block-partitions-efi-Add-support-for-IGNORE.patch
)
validpgpkeys=(
  474402C8C582DAFBE389C427BCB7CF877E7D47A7  # Alexandre Oliva
  6DB9C4B4F0D8C0DC432CF6E4227CA7C556B2BA78  # David P.
)
sha256sums=('eb43c7dfe646d607ce7f010fa77789260db46fad1086dcd5c7f8df0bee9c14b0'
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            'f36b1b3109d035139cfff75962a81c870fcb73fc3f81bb958e34a9e60af4fa3a')
sha256sums_i686=('d32270be5fd9c3e3ba50f3aef33f6cfcb85be0c8216f03b777287cc621fdff28')
sha256sums_armv7h=('ef4661a32234fe12bda28e698400c78c11491387df83ee554c53afb4dba244da'
                   'd3a4b7c7a3d3b4d69369b85630eef33b21cfbcffc23adbdc3cfa837610912287'
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                   '12d5706b00d2939b92130a4dc41d060f5e1fea75424b902ebceca72e427dc3b9'
                   'f4d4b44adc4b47b18bac33aa2c46b458c1b7ceb277416eff59054b6d7687c6da')
b2sums=('45471cdf9e8fc37e384bdcfc2d22b113850daf62a5bea70a1dc6ea402fd2f924bc21cb0275f7e22532092e20af6de7fc2bc7f2056321d29fd29e5cb0e7e80f87'
        'SKIP'
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b2sums_i686=('165ab9dd8cedeaae5327accc1581c19cf0be55f923b03feb889cad3351b74c7c4cd3d3c206938e5152bfe1d947513dea8f630f8f5544099ec13d16d254725c40')
b2sums_armv7h=('73ecc5862c6b4aef7b163c1992004273fbf791b82c75a8602e3def311f682f2b866124c0bfde90d03c7c76bb8b5853bdb9daad6ee2ab0908f4145cda476b8286'
               '15f7b70b5d153e9336006aba873a78f94d91b8df5e1939041f12e678bb9cfbdda2e362001068a07c044ce606cf0d4d2e625002df9c569c914f7ac248d4d3e8ad'
               '6219cec826bc543000ab87cf35dcc713f0635519cf79e75888b213a5e2d1f728e59e70df7fd842dda6e40494bf9cafa9f87368cb75b338c5a157a0adcf583512'
               '66d6cff292962c4c8bbea62b2240c4c53c0c514f9e99864be9244cb846c505e1bedd800ca1347b80883543035d20573b06796e5bacbace6e829880695ffca781'
               '741ad7ffc9e8200657315fc4111066b2477cde35ecdc5e73976457f17106f80d148d86bf97b92c523fef1cc5a26ddb867d16330f592f2aa4d886be596bedc8df')

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

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

export KBUILD_BUILD_HOST=parabola
export KBUILD_BUILD_USER=$pkgbase
export KBUILD_BUILD_TIMESTAMP="$(date -Ru${SOURCE_DATE_EPOCH:+d @$SOURCE_DATE_EPOCH})"

prepare() {
  cd $_srcname

  if [ "${_srcname##*-}" != "$pkgver" ]; then
    echo "Applying upstream patch..."
    patch -Np1 < "../patch-${_srcname##*-}-gnu-$pkgver-gnu"
  fi

  echo "Adding freedo as boot logo..."
  install -m644 -t drivers/video/logo \
    ../logo_linux_{clut224.ppm,vga16.ppm,mono.pbm}

  echo "Setting version..."
  echo "-$pkgrel" > localversion.10-pkgrel
  echo "${pkgbase#linux-libre}" > localversion.20-pkgname

  local source=("${source[@]}")
  case "$CARCH" in
    "armv7h")
      source+=("${source_armv7h[@]}") ;;
    "i686")
      source+=("${source_i686[@]}") ;;
  esac

  local src
  for src in "${source[@]}"; do
    src="${src%%::*}"
    src="${src##*/}"
    src="${src%.zst}"
    [[ $src = *.patch ]] || continue
    echo "Applying patch $src..."
    patch -Np1 < "../$src"
  done

  echo "Setting config..."
  cp ../config.$CARCH .config
  make olddefconfig
  diff -u ../config.$CARCH .config || :

  make -s kernelrelease > version
  echo "Prepared $pkgbase version $(<version)"
}

build() {
  cd $_srcname
  make all

  # temporarily disabled documentation due to sphinx_rtd_theme (FS32#163)
  if [ "$CARCH" != "i686" ]; then
    make htmldocs
  fi
}

_package() {
  pkgdesc="The $pkgdesc kernel and modules"
  depends=(
    coreutils
    initramfs
    kmod
  )
  optdepends=(
    'wireless-regdb: to set the correct wireless channels of your country'
    'linux-libre-firmware: firmware images needed for some devices'
  )
  provides=(
    KSMBD-MODULE
    VIRTUALBOX-GUEST-MODULES
    WIREGUARD-MODULE
  )
  replaces=(
    virtualbox-guest-modules-arch
    wireguard-arch
  )
  provides+=("${_replacesarchkernel[@]/%/=$pkgver}" "LINUX-ABI_VERSION=$pkgver")
  conflicts+=("${_replacesarchkernel[@]}" "${_replacesoldkernels[@]}" "${_replacesoldmodules[@]}")
  replaces+=("${_replacesarchkernel[@]}" "${_replacesoldkernels[@]}" "${_replacesoldmodules[@]}")

  cd $_srcname
  local modulesdir="$pkgdir/usr/lib/modules/$(<version)"

  echo "Installing boot image..."
  # systemd expects to find the kernel here to allow hibernation
  # https://github.com/systemd/systemd/commit/edda44605f06a41fb86b7ab8128dcf99161d2344
  install -Dm644 "$(make -s image_name)" "$modulesdir/vmlinuz"

  # On armv7h, the uboot4extlinux-* packages provide and use a extlinux.conf
  # file in /boot/extlinux/. This file is needed for the bootloader to find the
  # kernel, initramfs and devicetree. Because of that we need the kernel image
  # to also be installed in /boot for several reasons:
  #
  # - First the $modulesdir name contains the kernel version, and extlinux.conf
  #   is supposed to be edited by hand by users. Users can't be expected to do
  #   that at each kernel updates beause at some point they will forget and get
  #   a mismatch between the kernel image and modules which often breaks boot.
  #   In addition people know that the kernel image is in /boot. Having it in
  #   $moduledir instead is not documented anywhere. And we don't have code that
  #   can automatically generate an extlinux.conf.
  #
  # - Then we also need the kernel image in /boot to be able to use LVM rootfs
  #   as this requires a separate /boot partition and u-boot can't read LVM.
  #
  # - Finally, doing the copy manually might be straigtforward in some cases,
  #   as computers like the Lime 2 A20 are well supported, boot on a microSD or
  #   other removable storage that can be read by a laptop/desktop computer and
  #   even has a display that works at boot. But some of the supported ARM
  #   computers have an internal eMMC and no display that works at boot (like
  #   the TBS2910 or beaglebone black) and no way to export the internal storage
  #   as an usb mass storage (because the ums command is not compiled in u-boot)
  #   and sometimes even no way to connect a display at all (like the BegaleBone
  #   green). So that makes the simple way of copying a file way more complex.
  #   So it is a good idea not to break the boot if possible.
  if [ "$CARCH" = "armv7h" ]; then
      install -Dm644 "$(make -s image_name)" "$pkgdir/boot/vmlinuz-${pkgbase}"
  fi

  # Used by mkinitcpio to name the kernel
  echo "$pkgbase" | install -Dm644 /dev/stdin "$modulesdir/pkgbase"

  echo "Installing modules..."
  ZSTD_CLEVEL=19 make INSTALL_MOD_PATH="$pkgdir/usr" INSTALL_MOD_STRIP=1 \
    DEPMOD=/doesnt/exist modules_install  # Suppress depmod

  # remove build link
  rm "$modulesdir"/build

  if [ "$CARCH" = "armv7h" ]; then
    echo "Installing device tree binaries..."
    make INSTALL_DTBS_PATH="$pkgdir/boot/dtbs/$pkgbase" dtbs_install

    # armv7h presets only work with ALL_kver=$(<version)
    backup+=("etc/mkinitcpio.d/$pkgbase.preset")
    echo "Installing mkinitcpio preset..."
    sed "s|%PKGBASE%|$pkgbase|g;s|%KERNVER%|$(<version)|g" ../linux-armv7h.preset \
      | install -Dm644 /dev/stdin "$pkgdir/etc/mkinitcpio.d/$pkgbase.preset"
  fi
}

_package-headers() {
  pkgdesc="Headers and scripts for building modules for the $pkgdesc kernel"
  depends=(pahole)
  provides=("${_replacesarchkernel[@]/%/-headers=$pkgver}")
  conflicts=("${_replacesarchkernel[@]/%/-headers}" "${_replacesoldkernels[@]/%/-headers}")
  replaces=("${_replacesarchkernel[@]/%/-headers}" "${_replacesoldkernels[@]/%/-headers}")

  cd $_srcname
  local builddir="$pkgdir/usr/lib/modules/$(<version)/build"

  echo "Installing build files..."
  install -Dt "$builddir" -m644 .config Makefile Module.symvers System.map \
    localversion.* version vmlinux
  install -Dt "$builddir/kernel" -m644 kernel/Makefile
  install -Dt "$builddir/arch/$KARCH" -m644 arch/$KARCH/Makefile
  if [ "$CARCH" = "i686" ]; then
    install -Dt "$builddir/arch/x86" -m644 arch/x86/Makefile_32.cpu
  fi
  cp -t "$builddir" -a scripts

  # required when STACK_VALIDATION is enabled
  if [[ -e tools/objtool/objtool ]]; then
    install -Dt "$builddir/tools/objtool" tools/objtool/objtool
  fi

  # required when DEBUG_INFO_BTF_MODULES is enabled
  if [[ -e tools/bpf/resolve_btfids/resolve_btfids ]]; then
    install -Dt "$builddir/tools/bpf/resolve_btfids" tools/bpf/resolve_btfids/resolve_btfids
  fi

  echo "Installing headers..."
  cp -t "$builddir" -a include
  cp -t "$builddir/arch/$KARCH" -a arch/$KARCH/include
  install -Dt "$builddir/arch/$KARCH/kernel" -m644 arch/$KARCH/kernel/asm-offsets.s

  install -Dt "$builddir/drivers/md" -m644 drivers/md/*.h
  install -Dt "$builddir/net/mac80211" -m644 net/mac80211/*.h

  # https://bugs.archlinux.org/task/13146
  install -Dt "$builddir/drivers/media/i2c" -m644 drivers/media/i2c/msp3400-driver.h

  # https://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

  # https://bugs.archlinux.org/task/71392
  install -Dt "$builddir/drivers/iio/common/hid-sensors" -m644 drivers/iio/common/hid-sensors/*.h

  echo "Installing KConfig files..."
  find . -name 'Kconfig*' -exec install -Dm644 {} "$builddir/{}" \;

  echo "Removing unneeded architectures..."
  local arch
  for arch in "$builddir"/arch/*/; do
    [[ $arch = */$KARCH/ ]] && continue
    echo "Removing $(basename "$arch")"
    rm -r "$arch"
  done

  echo "Removing documentation..."
  rm -r "$builddir/Documentation"

  echo "Removing broken symlinks..."
  find -L "$builddir" -type l -printf 'Removing %P\n' -delete

  echo "Removing loose objects..."
  find "$builddir" -type f -name '*.o' -printf 'Removing %P\n' -delete

  echo "Stripping build tools..."
  local file
  while read -rd '' file; do
    case "$(file -Sib "$file")" in
      application/x-sharedlib\;*)      # Libraries (.so)
        strip -v $STRIP_SHARED "$file" ;;
      application/x-archive\;*)        # Libraries (.a)
        strip -v $STRIP_STATIC "$file" ;;
      application/x-executable\;*)     # Binaries
        strip -v $STRIP_BINARIES "$file" ;;
      application/x-pie-executable\;*) # Relocatable binaries
        strip -v $STRIP_SHARED "$file" ;;
    esac
  done < <(find "$builddir" -type f -perm -u+x ! -name vmlinux -print0)

  echo "Stripping vmlinux..."
  strip -v $STRIP_STATIC "$builddir/vmlinux"

  echo "Adding symlink..."
  mkdir -p "$pkgdir/usr/src"
  ln -sr "$builddir" "$pkgdir/usr/src/$pkgbase"
}

_package-docs() {
  pkgdesc="Documentation for the $pkgdesc kernel"
  provides=("${_replacesarchkernel[@]/%/-docs=$pkgver}")
  conflicts=("${_replacesarchkernel[@]/%/-docs}" "${_replacesoldkernels[@]/%/-docs}")
  replaces=("${_replacesarchkernel[@]/%/-docs}" "${_replacesoldkernels[@]/%/-docs}")

  cd $_srcname
  local builddir="$pkgdir/usr/lib/modules/$(<version)/build"

  echo "Installing documentation..."
  local src dst
  while read -rd '' src; do
    dst="${src#Documentation/}"
    dst="$builddir/Documentation/${dst#output/}"
    install -Dm644 "$src" "$dst"
  done < <(find Documentation -name '.*' -prune -o ! -type d -print0)

  echo "Adding symlink..."
  mkdir -p "$pkgdir/usr/share/doc"
  ln -sr "$builddir/Documentation" "$pkgdir/usr/share/doc/$pkgbase"
}

_package-chromebook() {
  pkgdesc="$pkgdesc kernel sign for Veyron Chromebooks"
  depends=(linux-libre=$pkgver)
  provides=("${_replacesarchkernel[@]/%/-armv7-chromebook=$pkgver}")
  conflicts=("${_replacesarchkernel[@]/%/-armv7-chromebook}" "${_replacesoldkernels[@]/%/-armv7-chromebook}")
  replaces=("${_replacesarchkernel[@]/%/-armv7-chromebook}" "${_replacesoldkernels[@]/%/-armv7-chromebook}")
  install=$pkgbase-chromebook.install

  cd $_srcname

  cp ../kernel.its .
  mkimage -D "-I dts -O dtb -p 2048" -f kernel.its kernel.signed
  dd if=/dev/zero of=bootloader.bin bs=512 count=1
  echo 'console=tty0 init=/sbin/init root=PARTUUID=%U/PARTNROFF=1 rootwait rw noinitrd' > cmdline

  echo "Creating kernel sign..."
  vbutil_kernel \
    --pack vmlinux.kpart \
    --version 1 \
    --vmlinuz kernel.signed \
    --arch arm \
    --keyblock ../kernel.keyblock \
    --signprivate ../kernel_data_key.vbprivk \
    --config cmdline \
    --bootloader bootloader.bin

  echo "Installing kernel sign..."
  mkdir -p "$pkgdir/boot"
  cp vmlinux.kpart "$pkgdir/boot"
}

pkgname=(
  "$pkgbase"
  "$pkgbase-headers"
  "$pkgbase-docs"
)
[ "$CARCH" = "armv7h" ] && pkgname+=("$pkgbase-chromebook")
for _p in "${pkgname[@]}"; do
  eval "package_$_p() {
    $(declare -f "_package${_p#$pkgbase}")
    _package${_p#$pkgbase}
  }"
done

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