libre: Add linux-libre-vanilla

This new kernel enables to test if maintaining a kernel without
additional patches is easier and faster:
- Not having to refresh patches makes it faster to update the
  kernel. And the procedure to liberate the Arch Linux patches is also
  not documented (though with trial and errors someone can relatively
  easy manage to do it, but that's time consuming).
- Some of the patches are never upstreamed so they stay there for
  years. This also means that what work in Parabola is broken in other
  FSDG compliant distributions because they don't use these patches.

In addition this kernel also enable users to test their hardware with
a stock linux-libre kernel. In the past the armv7h Parabola kernel
carried out patches to make capes work on the Beaglebone Single Board
Computers.

This made me think that this feature was upstream because it worked in
Parabola. The patches to do that were removed at some point so it
stopped working. So if I started relying on it it would have been a
very bad idea as it would have stopped working without even a warning.

Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>

1 files changed, 344 insertions, 0 deletions

diff --git a/libre/linux-libre-vanilla/PKGBUILD b/libre/linux-libre-vanilla/PKGBUILD
new file mode 100644
index 000000000..e59c9f09a
--- /dev/null
+++ b/libre/linux-libre-vanilla/PKGBUILD
@@ -0,0 +1,344 @@
+# Contributor: 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>
+# Maintainers: Parabola hackers <dev@lists.parabola.nu>
+
+# 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-vanilla
+pkgver=5.17.3
+pkgrel=1
+pkgdesc='Linux-libre without additional patches'
+url='https://linux-libre.fsfla.org/'
+arch=(i686 x86_64 armv7h)
+license=(GPL2)
+makedepends=(
+  bc libelf pahole cpio perl tar xz
+  xmlto python-sphinx python-sphinx_rtd_theme graphviz imagemagick texlive-latexextra
+  git
+)
+makedepends=( ${makedepends[*]/git/} )
+makedepends_armv7h=(uboot-tools vboot-utils dtc) # required by linux-libre-chromebook
+options=('!strip')
+_srcname=linux-5.17
+source=(
+  "https://linux-libre.fsfla.org/pub/linux-libre/releases/${_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 Chromebooks kernels
+)
+
+validpgpkeys=(
+  '474402C8C582DAFBE389C427BCB7CF877E7D47A7' # Alexandre Oliva
+  '6DB9C4B4F0D8C0DC432CF6E4227CA7C556B2BA78' # David P.
+)
+sha512sums=('565de7f956e40a931858cb29b61619f25fc57ce588b8762bef806e470d20bbbdf98a6e1c55eccae61a7365c0ecaae4825d81f7eec8689911710949ba5b34ce0c'
+            'SKIP'
+            'dac91c125a65ae7843206eda3d6cc7aaf6e3e8e07ef9348f336c0feb846a1285ea34d9cc3e547430a872da1064dcf22dbb1e2a0ed616de8c36c5da73fca790a2'
+            'SKIP'
+            '13cb5bc42542e7b8bb104d5f68253f6609e463b6799800418af33eb0272cc269aaa36163c3e6f0aacbdaaa1d05e2827a4a7c4a08a029238439ed08b89c564bb3'
+            'SKIP'
+            '7a3716bfe3b9f546da309c7492f3e08f8f506813afeb1c737a474c83313d5c313cf4582b65215c2cfce3b74d9d1021c96e8badafe8f6e5b01fe28d2b5c61ae78'
+            'SKIP'
+            '267295aa0cea65684968420c68b32f1a66a22d018b9d2b2c1ef14267bcf4cb68aaf7099d073cbfefe6c25c8608bdcbbd45f7ac8893fdcecbf1e621abdfe9ecc1'
+            'SKIP'
+            '4d20c1d0eed64bc64ac04e41e10288259212e00bc0967887e20e5ae277735d3a036c0a5ded08276455d2748af5787ebcf910329491eb43e84c204d6a9d76065f'
+            'cf8aa9f4071f74f6cbd0314c8193f75b7e8bbb2caecb4b5b4c07d94eb61d9a70ed98ed0fc2db92ce9b4a796598b098e7cd0d171a660584e4da419870b329a599'
+            '51e8b4da770067e8257d292622d865cb16ac57fdfd8967bdfb74efec197dae9eab958e5637a728640ae60885bdde41c06c8076227a4f83db0b752215f91f3a87'
+            '53103bf55b957b657039510527df0df01279dec59cda115a4d6454e4135025d4546167fa30bdc99107f232561c1e096d8328609ab5a876cf7017176f92ad3e0b'
+            '167bc73c6c1c63931806238905dc44c7d87c5a5c0f6293159f2133dfe717fb44081018d810675716d1605ec7dff5e8333b87b19e09e2de21d0448e447437873b'
+            'bb6718984a7357c9b00c37e4788480e5b8b75018c172ecc1441bc3fc5d2d42444eb5d8c7f9d2e3a7d6fed6d03acb565e3c0559486e494c40a7fe6bd0570c9ede'
+            '143dea30c6da00e504c99984a98a0eb2411f558fcdd9dfa7f607d6c14e9e7dffff9cb00121d9317044b07e3e210808286598c785ee854084b993ec9cb14d8232')
+
+_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-$pkgver-gnu"
+  fi
+
+  echo "Adding freedo as boot logo..."
+  install -m644 -t drivers/video/logo \
+    ../logo_linux_{clut224.ppm,vga16.ppm,mono.pbm}
+
+  echo "Setting version..."
+  scripts/setlocalversion --save-scmversion
+  echo "-$pkgrel" > localversion.10-pkgrel
+  echo "${pkgbase#linux-libre}" > localversion.20-pkgname
+
+  if [ "$CARCH" = "armv7h" ]; then
+    local src_armv7h
+    for src_armv7h in "${source_armv7h[@]}"; do
+      src_armv7h="${src_armv7h%%::*}"
+      src_armv7h="${src_armv7h##*/}"
+      [[ $src_armv7h = *.patch ]] || continue
+      echo "Applying patch $src_armv7h..."
+      patch -Np1 < "../$src_armv7h"
+    done
+  fi
+
+  if [ "$CARCH" = "i686" ]; then
+    local src_i686
+    for src_i686 in "${source_i686[@]}"; do
+      src_i686="${src_i686%%::*}"
+      src_i686="${src_i686##*/}"
+      [[ $src_i686 = *.patch ]] || continue
+      echo "Applying patch $src_i686..."
+      patch -Np1 < "../$src_i686"
+    done
+  fi
+
+  local src
+  for src in "${source[@]}"; do
+    src="${src%%::*}"
+    src="${src##*/}"
+    [[ $src = *.patch ]] || continue
+    echo "Applying patch $src..."
+    patch -Np1 < "../$src"
+  done
+
+  echo "Setting config..."
+  cp ../config.$CARCH .config
+  make olddefconfig
+  diff -u ../config .config || :
+
+  make -s kernelrelease > version
+  echo "Prepared $pkgbase version $(<version)"
+}
+
+build() {
+  cd $_srcname
+  make all
+  make htmldocs
+}
+
+_package() {
+  pkgdesc="The $pkgdesc kernel and modules"
+  depends=(coreutils kmod initramfs)
+  optdepends=('wireless-regdb: to set the correct wireless channels of your country'
+              'linux-libre-firmware: firmware images needed for some devices')
+  provides=(VIRTUALBOX-GUEST-MODULES WIREGUARD-MODULE)
+  replaces=(virtualbox-guest-modules-arch wireguard-arch)
+  provides+=("${_replacesarchkernel[@]/%/=$pkgver}" "LINUX-ABI_VERSION=$pkgver")
+  conflicts+=("${_replacesarchkernel[@]}" "${_replacesoldkernels[@]}" "${_replacesoldmodules[@]}")
+  replaces+=("${_replacesarchkernel[@]}" "${_replacesoldkernels[@]}" "${_replacesoldmodules[@]}")
+
+  cd $_srcname
+  local kernver="$(<version)"
+  local modulesdir="$pkgdir/usr/lib/modules/$kernver"
+
+  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"
+
+  # Used by mkinitcpio to name the kernel
+  echo "$pkgbase" | install -Dm644 /dev/stdin "$modulesdir/pkgbase"
+
+  echo "Installing modules..."
+  make INSTALL_MOD_PATH="$pkgdir/usr" INSTALL_MOD_STRIP=1 \
+    DEPMOD=/doesnt/exist modules_install  # Suppress depmod
+
+  # remove build and source links
+  rm "$modulesdir"/{source,build}
+
+  if [ "$CARCH" = "armv7h" ]; then
+    echo "Installing device tree binaries..."
+    make INSTALL_DTBS_PATH="$pkgdir/boot/dtbs/$pkgbase" dtbs_install
+
+    # armv7h presets only work with ALL_kver=$kernver
+    backup=("etc/mkinitcpio.d/$pkgbase.preset")
+    echo "Installing mkinitcpio preset..."
+    sed "s|%PKGBASE%|$pkgbase|g;s|%KERNVER%|$kernver|g" ../linux-armv7h.preset \
+      | install -Dm644 /dev/stdin "$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/$KARCH" -m644 arch/$KARCH/Makefile_32.cpu
+  fi
+  cp -t "$builddir" -a scripts
+
+  # required when STACK_VALIDATION is enabled
+  install -Dt "$builddir/tools/objtool" tools/objtool/objtool
+
+  # required when DEBUG_INFO_BTF_MODULES is enabled
+  install -Dt "$builddir/tools/bpf/resolve_btfids" tools/bpf/resolve_btfids/resolve_btfids
+
+  echo "Installing headers..."
+  cp -t "$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
+
+  # from linux-armv7
+  if [ "$CARCH" = "armv7h" ]; then
+    for i in dove omap2; do
+      mkdir -p "$builddir/arch/$KARCH/mach-$i"
+      cp -t "$builddir/arch/$KARCH/mach-$i/" -a arch/$KARCH/mach-$i/include
+    done
+    for i in omap orion versatile; do
+      mkdir -p "$builddir/arch/$KARCH/plat-$i"
+      cp -t "$builddir/arch/$KARCH/plat-$i/" -a arch/$KARCH/plat-$i/include
+    done
+  fi
+
+  install -Dt "$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 "$(file -bi "$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: