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path: root/kernels/linux-libre-rt/PKGBUILD
blob: e0264bfe47b8192af12435edd3ce4e516aea1443 (plain)
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# 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-rt package

pkgbase=linux-libre-rt
_srcbasever=4.14-gnu
_srcver=4.14.78-gnu
_rtbasever=4.14
_rtpatchver=rt47

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

_srcname=linux-${_srcbasever%-*}
_archpkgver=${_srcver%-*}_${_rtpatchver}
pkgver=${_srcver//-/_}.${_rtpatchver}
pkgrel=1
rcnrel=armv7-x11
arch=('x86_64' 'i686' 'armv7h')
url="https://linux-libre.fsfla.org/"
license=('GPL2')
makedepends=('xmlto' 'kmod' 'inetutils' 'bc' 'libelf')
options=('!strip')
source=(
  "https://linux-libre.fsfla.org/pub/linux-libre/releases/${_srcbasever}/linux-libre-${_srcbasever}.tar.xz"{,.sign}
  "https://linux-libre.fsfla.org/pub/linux-libre/releases/${_srcver}/patch-${_srcbasever}-${_srcver}.xz"{,.sign}
  "https://www.kernel.org/pub/linux/kernel/projects/rt/${_rtbasever}/older/patch-${_srcver%-*}-${_rtpatchver}.patch.xz"
  "https://www.kernel.org/pub/linux/kernel/projects/rt/${_rtbasever}/older/patch-${_srcver%-*}-${_rtpatchver}.patch.sign"
  "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"{,.sig}
  "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 hooks for depmod and initramfs regeneration
  '60-linux.hook' '90-linux.hook'
  # standard config files for mkinitcpio ramdisk
  'linux.preset'
  # armv7h patches
  "https://repo.parabola.nu/other/rcn-libre/patches/${_srcver%-*}/rcn-libre-${_srcver%-*}-${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-set-default-cubietruck-led-triggers.patch'
  '0007-exynos4412-odroid-set-higher-minimum-buck2-regulator.patch'
  '0008-ARM-dove-enable-ethernet-on-D3Plug.patch'
  # other patches
  '0001-usb-serial-gadget-no-TTY-hangup-on-USB-disconnect-WI.patch'
  '0002-fix-Atmel-maXTouch-touchscreen-support.patch'
  '0001-add-sysctl-to-disallow-unprivileged-CLONE_NEWUSER-by.patch'
  '0003-Revert-drm-i915-edp-Allow-alternate-fixed-mode-for-e.patch'
)
validpgpkeys=(
  '474402C8C582DAFBE389C427BCB7CF877E7D47A7' # Alexandre Oliva
  '6DB9C4B4F0D8C0DC432CF6E4227CA7C556B2BA78' # David P.
  '64254695FFF0AA4466CC19E67B96E8162A8CF5D1' # Sebastian Andrzej
  '5ED9A48FC54C0A22D1D0804CEBC26CDB5A56DE73' # Steven Rostedt
)
sha512sums=('0d4b0b8ec1ffc39c59295adf56f6a2cccf77cad56d8a8bf8072624bbb52ba3e684147ebed91d1528d2685423dd784c5fca0f3650f874f2b93cfc6b7689b9a87f'
            'SKIP'
            '1fc8bb70032780df667d69a1886f71f453abcbd145560973683cb5ff8f79e0a8fa2255e1f7c53f7a13a36eebd69980255390f4894b578ec4e67d628ebfaf9cb4'
            'SKIP'
            'e02f202411b8a8fc2ef8f25e264b06f79a5f219abdc12f0f2c3fc1e7f27f6fc355916d80392b8d6310dca237a844400efe3481e37cb09ff7ce5be440bd9b9b4a'
            'SKIP'
            '13cb5bc42542e7b8bb104d5f68253f6609e463b6799800418af33eb0272cc269aaa36163c3e6f0aacbdaaa1d05e2827a4a7c4a08a029238439ed08b89c564bb3'
            'SKIP'
            '267295aa0cea65684968420c68b32f1a66a22d018b9d2b2c1ef14267bcf4cb68aaf7099d073cbfefe6c25c8608bdcbbd45f7ac8893fdcecbf1e621abdfe9ecc1'
            'SKIP'
            '7a3716bfe3b9f546da309c7492f3e08f8f506813afeb1c737a474c83313d5c313cf4582b65215c2cfce3b74d9d1021c96e8badafe8f6e5b01fe28d2b5c61ae78'
            'SKIP'
            '3a3df442e8022c14d7f7bf0b63086d092473224cc9d67a909d740c30ce19bf19cbdbe14a44e41cb72e8f2fc06bc2e0b4853aed1503973de7dc23cdc58cc5c2f3'
            '5ac1ba47061b87aed811f23e1aff8d345695d5ed484f74f0a7d1725b8b1459de532f8148c47555124dcc339de35851908fb47e52494a1cda1a5a95365d032980'
            'c24a2cce25d1045f47cb6d8f2f107942e19edd59b0d243186b5dfe4873a554c5f482d64e64ef65ba32432d98829fc79c049e2e1b3ba7e51beca3646fab82af30'
            '7ad5be75ee422dda3b80edd2eb614d8a9181e2c8228cd68b3881e2fb95953bf2dea6cbe7900ce1013c9de89b2802574b7b24869fc5d7a95d3cc3112c4d27063a'
            '4a8b324aee4cccf3a512ad04ce1a272d14e5b05c8de90feb82075f55ea3845948d817e1b0c6f298f5816834ddd3e5ce0a0e2619866289f3c1ab8fd2f35f04f44'
            '2dc6b0ba8f7dbf19d2446c5c5f1823587de89f4e28e9595937dd51a87755099656f2acec50e3e2546ea633ad1bfd1c722e0c2b91eef1d609103d8abdc0a7cbaf'
            '76aafa199e944156157cbce2330be21f2b924ba2935f177f209f8215d06e6838e78b0f63a305c0b6e5547cfb99439c68a9137c0ea674d1ac0b13ab88fdd381e2'
            'SKIP'
            '60aa432465eb3ac10f565799d3dfecea21aaf08e83909c1161d9359e932626edbd1353e712d616c3d785c65a0f699e9c45df35bd9e86365c25399c6b2d45b9e4'
            '86809feb5ae2759b449ec0cb7a6b3fb457874ed82a72dfda00607e8819c804a0714b5d6a17cbbba44996a36872224af42d1b85f1b3932f43bccb419041d25dc7'
            '746acff348d62b3ed4e62cd9976ddf0af47f87bd3cffda90cbb00a6b57d589ccb681fcd9541ee5bdd179d95dad71d57c77cb1a60faee1c6cef518e4055c3456f'
            'c945e871fa456b521ced77cae9081bcdc47d836ecdabe6766e373681fe11fda3e5a7a3c16f70c586be64a1eb5c9136c43b0a44df897298940fd8703b50b0a543'
            '054e98a2d1ea83cece1fe55ae087b282f25593022f252c74612d4aeb2a547f84ea626e3d982098ca798271af55f3b733ac2aea2fc0d9cad031802d2901dfe4ca'
            '4433f9e780a72347313916c8a9cbcbce3a8c40e1b299e887dc748d257879fb5fab8f1683936339f73a4d4b4ef668b1ed6cc0d9a19ed4bd99039a1613ac08610e'
            'd1361d23ae79599e3fa94cba206bd40764f9eee0c584e639af13828dabb7f0dfa361792c098b5afae0bb350407b2dc47a1d67580daeade7a4f3e3e55e42c8470'
            'c1653f91067d31801a23450175e47968add147477caf20aec6092831739641312f4ad995af43c7e55545007279016b5f62a0720d31e4591b4421a65b8bd5b398'
            '02af4dd2a007e41db0c63822c8ab3b80b5d25646af1906dc85d0ad9bb8bbf5236f8e381d7f91cf99ed4b0978c50aee37cb9567cdeef65b7ec3d91b882852b1af'
            'b8fe56e14006ab866970ddbd501c054ae37186ddc065bb869cf7d18db8c0d455118d5bda3255fb66a0dde38b544655cfe9040ffe46e41d19830b47959b2fb168'
            '485f37aca7793cee2361e126bc619e5bfd1737bff484b06bbba76cd326f3845c4d96c17bb9a56623a653b7b7062a698975d6a7f019f5c1a3eb9faf9b352d73f2'
            'f3b63304f2c3ab9bfb4d0a697e1ec9bb6efbb1a458e8dad7b95a7fc9e1afd4899a540a46b4db10efb0c496c01c3408d32936fdd9a46de33f992e36ee4d42c290')

_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 ${_srcname}

  # add upstream patch
  if [ "${_srcbasever}" != "${_srcver}" ]; then
    patch -p1 -i ../patch-${_srcbasever}-${_srcver}
  fi
  chmod +x tools/objtool/sync-check.sh  # GNU patch doesn't support git-style file mode

  # add realtime patch
  patch -p1 -i ../patch-${_srcver%-*}-${_rtpatchver}.patch
  rm localversion-rt
  
  if [ "${CARCH}" = "armv7h" ]; then
    # RCN patch (CM3 firmware deblobbed and AUFS/WireGuard removed)
    # Note: For stability reasons, AUFS has been removed in the RCN patch.
    # We are supporting AUFS in linux-libre-pck through PCK patch.
    # See https://wiki.parabola.nu/PCK for further details.
    patch -p1 -i ../rcn-libre-${_srcver%-*}-${rcnrel}.patch

    # ALARM patches
    patch -p1 -i ../0001-ARM-atags-add-support-for-Marvell-s-u-boot.patch
    patch -p1 -i ../0002-ARM-atags-fdt-retrieve-MAC-addresses-from-Marvell-bo.patch
    patch -p1 -i ../0003-SMILE-Plug-device-tree-file.patch
    patch -p1 -i ../0004-fix-mvsdio-eMMC-timing.patch
    patch -p1 -i ../0005-net-smsc95xx-Allow-mac-address-to-be-set-as-a-parame.patch
    patch -p1 -i ../0006-set-default-cubietruck-led-triggers.patch
    patch -p1 -i ../0007-exynos4412-odroid-set-higher-minimum-buck2-regulator.patch
    patch -p1 -i ../0008-ARM-dove-enable-ethernet-on-D3Plug.patch
  fi

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

  # security patches

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

  # disable USER_NS for non-root users by default
  patch -Np1 -i ../0001-add-sysctl-to-disallow-unprivileged-CLONE_NEWUSER-by.patch

  # https://bugs.archlinux.org/task/56711
  patch -Np1 -i ../0003-Revert-drm-i915-edp-Allow-alternate-fixed-mode-for-e.patch

  # maintain the TTY over USB disconnects
  # http://www.coreboot.org/EHCI_Gadget_Debug
  patch -p1 -i ../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 ../0002-fix-Atmel-maXTouch-touchscreen-support.patch

  cp -Tf ../config.$CARCH .config

  if [ "${_kernelname}" != "" ]; then
    sed -i "s|CONFIG_LOCALVERSION=.*|CONFIG_LOCALVERSION=\"${_kernelname}\"|g" ./.config
    sed -i "s|CONFIG_LOCALVERSION_AUTO=.*|CONFIG_LOCALVERSION_AUTO=n|" ./.config
  fi

  # 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 ${_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 ${pkgbase^} kernel and modules with realtime preemption"
  [ "${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}}" "LINUX-ABI_VERSION=${_srcver%%-*}")
  conflicts=("${_replacesarchkernel[@]}" "${_replacesoldkernels[@]}" "${_replacesoldmodules[@]}")
  replaces=("${_replacesarchkernel[@]}" "${_replacesoldkernels[@]}" "${_replacesoldmodules[@]}")
  backup=("etc/mkinitcpio.d/${pkgbase}.preset")
  install=linux.install

  cd ${_srcname}

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

  mkdir -p "${pkgdir}"/{boot,usr/lib/modules}
  make LOCALVERSION= INSTALL_MOD_PATH="${pkgdir}/usr" 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

  # 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
  if [ "${CARCH}" = "armv7h" ]; then
  local _subst="
    s|/boot/vmlinuz-%PKGBASE%|${_kernver}|g
    s|%PKGBASE%|${pkgbase}|g
    s|%KERNVER%|${_kernver}|g
    s|%EXTRAMODULES%|${_extramodules}|g
  "
  else
  local _subst="
    s|%PKGBASE%|${pkgbase}|g
    s|%KERNVER%|${_kernver}|g
    s|%EXTRAMODULES%|${_extramodules}|g
  "
  fi

  # 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 ${pkgbase^} kernel"
  provides=("${_replacesarchkernel[@]/%/-headers=${_archpkgver}}")
  conflicts=("${_replacesarchkernel[@]/%/-headers}" "${_replacesoldkernels[@]/%/-headers}")
  replaces=("${_replacesarchkernel[@]/%/-headers}" "${_replacesoldkernels[@]/%/-headers}")

  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 "${_builddir}/arch/${KARCH}" -m644 arch/${KARCH}/Makefile
  if [[ ${CARCH} = i686 ]]; then
    install -t "${_builddir}/arch/${KARCH}" -m644 arch/${KARCH}/Makefile_32.cpu
  fi
  install -Dt "${_builddir}/arch/${KARCH}/kernel" -m644 arch/${KARCH}/kernel/asm-offsets.s

  cp -t "${_builddir}/arch/${KARCH}" -a arch/${KARCH}/include

  install -Dt "${_builddir}/drivers/md" -m644 drivers/md/*.h
  install -Dt "${_builddir}/net/mac80211" -m644 net/mac80211/*.h

  # http://bugs.archlinux.org/task/9912
  install -Dt "${_builddir}/drivers/media/dvb-core" -m644 drivers/media/dvb-core/*.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
  if [[ -e tools/objtool/objtool ]]; then
    install -Dt "${_builddir}/tools/objtool" tools/objtool/objtool
  fi
  
  # remove unneeded architectures
  local _arch
  for _arch in "${_builddir}"/arch/*/; do
    [[ ${_arch} == */${KARCH}/ ]] && continue
    rm -r "${_arch}"
  done

  # remove files already in linux-docs package
  rm -r "${_builddir}/Documentation"
  
  # Parabola changes
  # 
  # since we don't want to diverge too much from Arch's PKGBUILD, we'll
  # start marking our changes as such
  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
  # end of Parabola changes

  # 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 ${pkgbase^} kernel"
  provides=("${_replacesarchkernel[@]/%/-docs=${_archpkgver}}")
  conflicts=("${_replacesarchkernel[@]/%/-docs}" "${_replacesoldkernels[@]/%/-docs}")
  replaces=("${_replacesarchkernel[@]/%/-docs}" "${_replacesoldkernels[@]/%/-docs}")

  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