extra/linux-galileo-gen2: first trial of a dedicated kernel

1 files changed, 258 insertions, 0 deletions

diff --git a/extra/linux-galileo-gen2/PKGBUILD b/extra/linux-galileo-gen2/PKGBUILD
new file mode 100644
index 00000000..9b129a3f
--- /dev/null
+++ b/extra/linux-galileo-gen2/PKGBUILD
@@ -0,0 +1,258 @@
+# Maintainer: Jan Alexander Steffens (heftig) <jan.steffens@gmail.com>
+
+MODEL=galileo-gen2
+pkgbase=linux-${MODEL}
+pkgver='5.19.4.arch1'
+pkgrel='1'
+pkgdesc='Linux for Intel Galileo Gen 2'
+_srctag=v${pkgver%.*}-${pkgver##*.}
+url="https://github.com/archlinux/linux/log/?h=$_srctag"
+arch=(i486 i686 pentium4 x86_64)
+license=(GPL2)
+makedepends=(
+  bc kmod libelf
+  xmlto python-sphinx python-sphinx_rtd_theme
+  git cpio
+)
+options=('!strip')
+_srcname=archlinux-linux
+source=(
+  "$_srcname::git+https://github.com/archlinux/linux?signed#tag=$_srctag"
+  config.${MODEL}         # the main kernel config file
+)
+validpgpkeys=(
+  'ABAF11C65A2970B130ABE3C479BE3E4300411886'  # Linus Torvalds
+  '647F28654894E3BD457199BE38DBBDC86092693E'  # Greg Kroah-Hartman
+  'A2FF3A36AAA56654109064AB19802F8B0D70FC30'  # Jan Alexander Steffens (heftig)
+)
+sha256sums=('21852ca8539beb8aa722ea93ebe94bf9574bd9a6225e81abe52d2c0d9c55f716'
+            '3d153abcad99f149591f988969ad18a7b352191b332760dbee7043316151a67c')
+
+export KBUILD_BUILD_HOST=archlinux
+export KBUILD_BUILD_USER=$pkgbase
+export KBUILD_BUILD_TIMESTAMP="$(date -Ru${SOURCE_DATE_EPOCH:+d @$SOURCE_DATE_EPOCH})"
+
+prepare() {
+  cd $_srcname
+
+  echo "Setting version..."
+  scripts/setlocalversion --save-scmversion
+  echo "-$pkgrel" > localversion.10-pkgrel
+  echo "${pkgbase#linux}" > localversion.20-pkgname
+
+  local src
+  for src in "${source[@]}"; do
+    src="${src%%::*}"
+    src="${src##*/}"
+    [[ $src = *.patch ]] || continue
+    echo "Applying patch $src..."
+    patch -Np1 < "../$src"
+  done
+
+  echo "Setting config..."
+  cp ../config.${MODEL} .config
+  # make olddefconfig
+
+  # rewrite configuration
+  yes "" | make config >/dev/null
+
+  make -s kernelrelease > version
+  echo "Prepared $pkgbase version $(<version)"
+}
+
+build() {
+  cd $_srcname
+  make V=1 all
+}
+
+_package() {
+  pkgdesc="The $pkgdesc kernel and modules"
+  depends=(coreutils kmod initramfs)
+  optdepends=('crda: to set the correct wireless channels of your country'
+              'linux-firmware: firmware images needed for some devices')
+  provides=(VIRTUALBOX-GUEST-MODULES WIREGUARD-MODULE)
+  replaces=(virtualbox-guest-modules-arch wireguard-arch)
+
+  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="$pkgdir/usr" modules_install
+
+  # remove build and source links
+  rm "$modulesdir"/{source,build}
+}
+
+_package-headers() {
+  pkgdesc="Headers and scripts for building modules for the $pkgdesc kernel"
+
+  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/x86" -m644 arch/x86/Makefile
+  install -t "$builddir/arch/x86" -m644 arch/x86/Makefile_32.cpu
+  cp -t "$builddir" -a scripts
+
+  # add xfs and shmem for aufs building
+  mkdir -p "$builddir"/{fs/xfs,mm}
+
+  echo "Installing headers..."
+  cp -t "$builddir" -a include
+  cp -t "$builddir/arch/x86" -a arch/x86/include
+  install -Dt "$builddir/arch/x86/kernel" -m644 arch/x86/kernel/asm-offsets.s
+
+  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
+
+  echo "Installing KConfig files..."
+  find . -name 'Kconfig*' -exec install -Dm644 {} "$builddir/{}" \;
+
+  echo "Removing unneeded architectures..."
+  local arch
+  for arch in "$builddir"/arch/*/; do
+    [[ $arch = */x86/ ]] && 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 "$builddir" -type f -perm -u+x ! -name vmlinux -print0)
+
+  echo "Adding symlink..."
+  mkdir -p "$pkgdir/usr/src"
+  ln -sr "$builddir" "$pkgdir/usr/src/$pkgbase"
+}
+
+_package-docs() {
+  pkgdesc="Documentation for the $pkgdesc kernel"
+
+  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"
+}
+
+pkgname=("$pkgbase" "$pkgbase-headers" "$pkgbase-docs")
+for _p in "${pkgname[@]}"; do
+  eval "package_$_p() {
+    $(declare -f "_package${_p#$pkgbase}")
+    _package${_p#$pkgbase}
+  }"
+done
+
+# use our tarballer instead of cloning from git
+for ((i=0; i<${#source[@]}; i++)); do
+  infos=$(
+    printf '%s\n' "${source[${i}]}" | \
+      sed '
+        s@^\(\([^:]\+\)::\)\?\(git\|hg\)+\([^#?]\+\)\(?signed\)\?#\(\(tag\|commit\)=[^?]\+\)$@\3 \2 \4 \5 \6@
+        t
+        s@^\(\([^:]\+\)::\)\?\(git\|hg\)+\([^#?]\+\)#\(\(tag\|commit\)=[^?]\+\)\(?signed\)\?$@\3 \2 \4 \7 \5@
+        t
+        d
+      '
+  )
+  if [ -n "${infos}" ]; then
+    source[${i}]=$(
+      type="${infos%% *}"
+      infos="${infos#* }"
+      if [ -n "${infos%% *}" ]; then
+        prefix="${infos%% *}"
+      else
+        prefix=''
+      fi
+      infos="${infos#* }"
+      repo="${infos%% *}"
+      repo64=$(
+        printf '%s' "${repo}" | \
+          base64 -w0 | \
+          sed 's/=/%3D/g'
+      )
+      infos="${infos#* }"
+      if [ "${infos%% *}" = '?signed' ]; then
+        key_check=$(
+          printf '&valid_keys='
+          printf '%s,' "${validpgpkeys[@]}" | \
+            sed 's/,$//'
+        )
+      else
+        key_check=''
+      fi
+      infos="${infos#* }"
+      if [ -z "${prefix}" ]; then
+        prefix="${repo%.git}"
+        prefix="${prefix##*/}"
+      fi
+      prefix_64=$(
+        printf '%s/' "${prefix}" | \
+          base64 -w0 | \
+          sed 's/=/%3D/g'
+      )
+
+      printf '%s-%s.tar.gz::https://archive-server.archlinux32.org/?t=%s&p=%s&r=%s%s&%s\n' \
+        "${prefix}" \
+        "${pkgver}" \
+        "${type}" \
+        "${prefix_64}" \
+        "${repo64}" \
+        "${key_check}" \
+        "${infos}"
+    )
+  fi
+done
+
+# avoid using zstd compression in ultra mode (exhausts virtual memory)
+source+=('core/linux/no-ultra-zstd.patch')
+sha256sums+=('d32270be5fd9c3e3ba50f3aef33f6cfcb85be0c8216f03b777287cc621fdff28')