Add kernels/linux-libre-x86_64

With this kernel, on machines with an x86_64 compatible CPU, you
can run an i686 userspace with an x86_64 kernel.

This for instance enables to use the same i686 rootfs on computers
with 32bit and 64bit CPUs, while still being able to take advantage
of a 64bit kernel on the machines that supports it.

The users will then need to force i686 in pacman.conf like that:
  [options]
  Architecture = i686
They will also need to select the right kernel at boot.

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

1 files changed, 309 insertions, 0 deletions

diff --git a/kernels/linux-libre-x86_64/PKGBUILD b/kernels/linux-libre-x86_64/PKGBUILD
new file mode 100644
index 000000000..bde39668d
--- /dev/null
+++ b/kernels/linux-libre-x86_64/PKGBUILD
@@ -0,0 +1,309 @@
+# 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
+
+pkgbase=linux-libre-x86_64         # Build stock kernel
+#pkgbase=linux-libre-custom # Build kernel with a different name
+_srcbasever=4.19-gnu
+_srcver=4.19.8-gnu
+
+_replacesarchkernel=('linux%') # '%' gets replaced with _kernelname
+_replacesoldkernels=() # '%' gets replaced with _kernelname
+_replacesoldmodules=() # '%' gets replaced with _kernelname
+
+_srcname=linux-${_srcbasever%-*}
+_archpkgver=${_srcver%-*}
+pkgver=${_srcver//-/_}
+pkgrel=1
+arch=(i686)
+url="https://linux-libre.fsfla.org/"
+license=(GPL2)
+makedepends=(xmlto kmod inetutils bc libelf python-sphinx graphviz)
+makedepends+=('x86_64-pc-linux-gnu-gcc')
+options=('!strip')
+source=(
+  "https://linux-libre.fsfla.org/pub/linux-libre/releases/$_srcbasever/linux-libre-$_srcbasever.tar.xz"{,.sign}
+  "https://linux-libre.fsfla.org/pub/linux-libre/releases/$_srcver/patch-$_srcbasever-$_srcver.xz"{,.sign}
+  "https://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 kernel config file
+  'config.x86_64'
+  # pacman hooks for depmod and initramfs regeneration
+  '60-linux.hook' '90-linux.hook'
+  # standard config files for mkinitcpio ramdisk
+  'linux.preset'
+  # 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'
+)
+validpgpkeys=(
+  '474402C8C582DAFBE389C427BCB7CF877E7D47A7' # Alexandre Oliva
+  '6DB9C4B4F0D8C0DC432CF6E4227CA7C556B2BA78' # David P.
+)
+sha512sums=('5bc800b3beff43a8c15bd5515f4e0babe2beb5fa600491b7b37110e22d9b739d293f1e38753ed681be289c51390e0e64b3e60ce0db0a3bfe1f94ee5c014579a3'
+            'SKIP'
+            'd4de40e6fc7523e9314b89b29cd91af5d9cbbd57bece239e990c5f738ade9ceb53e7cedac30ecbf45009abfb0088a874b6570897dffd52c90e4f39743edd9b0f'
+            'SKIP'
+            '13cb5bc42542e7b8bb104d5f68253f6609e463b6799800418af33eb0272cc269aaa36163c3e6f0aacbdaaa1d05e2827a4a7c4a08a029238439ed08b89c564bb3'
+            'SKIP'
+            '267295aa0cea65684968420c68b32f1a66a22d018b9d2b2c1ef14267bcf4cb68aaf7099d073cbfefe6c25c8608bdcbbd45f7ac8893fdcecbf1e621abdfe9ecc1'
+            'SKIP'
+            '7a3716bfe3b9f546da309c7492f3e08f8f506813afeb1c737a474c83313d5c313cf4582b65215c2cfce3b74d9d1021c96e8badafe8f6e5b01fe28d2b5c61ae78'
+            'SKIP'
+            '068d6ce4ea72955a1cbdd1d4ba6361a8d4e0e74b56651995e1602c8e62255b7b6e65abe51dc5256d97324ecf56b92f4c1e9cdd20e12914a95820b1058961707c'
+            '7ad5be75ee422dda3b80edd2eb614d8a9181e2c8228cd68b3881e2fb95953bf2dea6cbe7900ce1013c9de89b2802574b7b24869fc5d7a95d3cc3112c4d27063a'
+            '2718b58dbbb15063bacb2bde6489e5b3c59afac4c0e0435b97fe720d42c711b6bcba926f67a8687878bd51373c9cf3adb1915a11666d79ccb220bf36e0788ab7'
+            '2dc6b0ba8f7dbf19d2446c5c5f1823587de89f4e28e9595937dd51a87755099656f2acec50e3e2546ea633ad1bfd1c722e0c2b91eef1d609103d8abdc0a7cbaf'
+            '167bc73c6c1c63931806238905dc44c7d87c5a5c0f6293159f2133dfe717fb44081018d810675716d1605ec7dff5e8333b87b19e09e2de21d0448e447437873b'
+            'bb6718984a7357c9b00c37e4788480e5b8b75018c172ecc1441bc3fc5d2d42444eb5d8c7f9d2e3a7d6fed6d03acb565e3c0559486e494c40a7fe6bd0570c9ede'
+            '143dea30c6da00e504c99984a98a0eb2411f558fcdd9dfa7f607d6c14e9e7dffff9cb00121d9317044b07e3e210808286598c785ee854084b993ec9cb14d8232'
+            '02af4dd2a007e41db0c63822c8ab3b80b5d25646af1906dc85d0ad9bb8bbf5236f8e381d7f91cf99ed4b0978c50aee37cb9567cdeef65b7ec3d91b882852b1af'
+            'b8fe56e14006ab866970ddbd501c054ae37186ddc065bb869cf7d18db8c0d455118d5bda3255fb66a0dde38b544655cfe9040ffe46e41d19830b47959b2fb168'
+            'ba561ef861c56002de25ec6f63211e758f3d26eaa7ff0e4a16ffd096d5fe7019d9df343658adc0535684303888d022aa816fc0b282da27ac1ca29dfc0b0e2be0')
+
+_kernelname=${pkgbase#linux-libre}
+_replacesarchkernel=("${_replacesarchkernel[@]/\%/${_kernelname}}")
+_replacesoldkernels=("${_replacesoldkernels[@]/\%/${_kernelname}}")
+_replacesoldmodules=("${_replacesoldmodules[@]/\%/${_kernelname}}")
+
+KARCH=x86
+
+prepare() {
+  cd $_srcname
+
+  # add upstream patch
+  if [ "$_srcbasever" != "$_srcver" ]; then
+    patch -p1 -i ../patch-$_srcbasever-$_srcver
+  fi
+
+  # add freedo as boot logo
+  install -m644 -t drivers/video/logo \
+    ../logo_linux_{clut224.ppm,vga16.ppm,mono.pbm}
+
+  # Arch's linux patches
+  patch -p1 -i ../0001-add-sysctl-to-disallow-unprivileged-CLONE_NEWUSER-by.patch
+
+  # maintain the TTY over USB disconnects
+  # http://www.coreboot.org/EHCI_Gadget_Debug
+  patch -p1 -i ../0001-usb-serial-gadget-no-TTY-hangup-on-USB-disconnect-WI.patch
+
+  # fix Atmel maXTouch touchscreen support
+  # https://labs.parabola.nu/issues/877
+  # http://www.fsfla.org/pipermail/linux-libre/2015-November/003202.html
+  patch -p1 -i ../0002-fix-Atmel-maXTouch-touchscreen-support.patch
+
+  msg2 "Setting version..."
+  scripts/setlocalversion --save-scmversion
+  echo "-$pkgrel" > localversion.10-pkgrel
+  echo "$_kernelname" > localversion.20-pkgname
+
+  msg2 "Setting config..."
+  cp ../config.x86_64 .config
+  make olddefconfig
+
+  make -s kernelrelease > ../version
+  msg2 "Prepared %s version %s" "$pkgbase" "$(<../version)"
+}
+
+build() {
+  cd $_srcname
+  make CROSS_COMPILE=x86_64-pc-linux-gnu- bzImage modules htmldocs
+}
+
+_package() {
+  pkgdesc="The ${pkgbase^} kernel and modules"
+  [[ $pkgbase = linux-libre ]] && groups=(base base-openrc)
+  depends=(coreutils linux-libre-firmware kmod mkinitcpio)
+  optdepends=('crda: to set the correct wireless channels of your country')
+  provides=("${_replacesarchkernel[@]/%/=${_archpkgver}}" "LINUX-ABI_VERSION=${_srcver%%-*}")
+  conflicts=("${_replacesarchkernel[@]}" "${_replacesoldkernels[@]}" "${_replacesoldmodules[@]}")
+  replaces=("${_replacesarchkernel[@]}" "${_replacesoldkernels[@]}" "${_replacesoldmodules[@]}")
+  backup=("etc/mkinitcpio.d/$pkgbase.preset")
+  install=linux.install
+
+  local kernver="$(<version)"
+  local modulesdir="$pkgdir/usr/lib/modules/$kernver"
+
+  cd $_srcname
+
+  msg2 "Installing boot image..."
+  # systemd expects to find the kernel here to allow hibernation
+  # https://github.com/systemd/systemd/commit/edda44605f06a41fb86b7ab8128dcf99161d2344
+  install -Dm644 "$(make -s image_name)" "$modulesdir/vmlinuz"
+  install -Dm644 "$modulesdir/vmlinuz" "$pkgdir/boot/vmlinuz-$pkgbase"
+
+  msg2 "Installing modules..."
+  make INSTALL_MOD_PATH="$pkgdir/usr" modules_install
+
+  # a place for external modules,
+  # with version file for building modules and running depmod from hook
+  local extramodules="extramodules$_kernelname"
+  local extradir="$pkgdir/usr/lib/modules/$extramodules"
+  install -Dt "$extradir" -m644 ../version
+  ln -sr "$extradir" "$modulesdir/extramodules"
+
+  # remove build and source links
+  rm "$modulesdir"/{source,build}
+
+  msg2 "Installing hooks..."
+  # sed expression for following substitutions
+  local subst="
+    s|%PKGBASE%|$pkgbase|g
+    s|%KERNVER%|$kernver|g
+    s|%EXTRAMODULES%|$extramodules|g
+  "
+
+  # hack to allow specifying an initially nonexisting install file
+  sed "$subst" "$startdir/$install" > "$startdir/$install.pkg"
+  true && install=$install.pkg
+
+  # fill in mkinitcpio preset and pacman hooks
+  sed "$subst" ../linux.preset | install -Dm644 /dev/stdin \
+    "$pkgdir/etc/mkinitcpio.d/$pkgbase.preset"
+  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"
+
+  msg2 "Fixing permissions..."
+  chmod -Rc u=rwX,go=rX "$pkgdir"
+}
+
+_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}" "${_replacesoldkernels[@]/%/-headers}")
+
+  local builddir="$pkgdir/usr/lib/modules/$(<version)/build"
+
+  cd $_srcname
+
+  msg2 "Installing build files..."
+  install -Dt "$builddir" -m644 Makefile .config Module.symvers System.map vmlinux
+  install -Dt "$builddir/kernel" -m644 kernel/Makefile
+  install -Dt "$builddir/arch/$KARCH" -m644 arch/$KARCH/Makefile
+  cp -t "$builddir" -a scripts
+
+  # add objtool for external module building and enabled VALIDATION_STACK option
+  if [[ -e tools/objtool/objtool ]]; then
+    install -Dt "$builddir/tools/objtool" tools/objtool/objtool
+  fi
+
+  # add xfs and shmem for aufs building
+  mkdir -p "$builddir"/{fs/xfs,mm}
+
+  # ???
+  mkdir "$builddir/.tmp_versions"
+
+  msg2 "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 "$builddir/net/mac80211" -m644 net/mac80211/*.h
+
+  # http://bugs.archlinux.org/task/13146
+  install -Dt "$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 "$builddir/drivers/media/tuners" -m644 drivers/media/tuners/*.h
+
+  msg2 "Installing KConfig files..."
+  find . -name 'Kconfig*' -exec install -Dm644 {} "$builddir/{}" \;
+
+  msg2 "Removing unneeded architectures..."
+  local arch
+  for arch in "$builddir"/arch/*/; do
+    [[ $arch = */$KARCH/ ]] && continue
+    echo "Removing $(basename "$arch")"
+    rm -r "$arch"
+  done
+
+  msg2 "Removing documentation..."
+  rm -r "$builddir/Documentation"
+
+  msg2 "Removing broken symlinks..."
+  find -L "$builddir" -type l -printf 'Removing %P\n' -delete
+
+  msg2 "Removing loose objects..."
+  find "$builddir" -type f -name '*.o' -printf 'Removing %P\n' -delete
+
+  msg2 "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 "$builddir" -type f -perm -u+x ! -name vmlinux -print0)
+
+  msg2 "Adding symlink..."
+  mkdir -p "$pkgdir/usr/src"
+  ln -sr "$builddir" "$pkgdir/usr/src/$pkgbase-$pkgver"
+
+  msg2 "Fixing permissions..."
+  chmod -Rc u=rwX,go=rX "$pkgdir"
+}
+
+_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}" "${_replacesoldkernels[@]/%/-docs}")
+  
+  local builddir="$pkgdir/usr/lib/modules/$(<version)/build"
+
+  cd $_srcname
+
+  msg2 "Installing documentation..."
+  mkdir -p "$builddir"
+  cp -t "$builddir" -a Documentation
+
+  msg2 "Removing doctrees..."
+  rm -r "$builddir/Documentation/output/.doctrees"
+
+  msg2 "Moving HTML docs..."
+  local src dst
+  while read -rd '' src; do
+    dst="$builddir/Documentation/${src#$builddir/Documentation/output/}"
+    mkdir -p "${dst%/*}"
+    mv "$src" "$dst"
+    rmdir -p --ignore-fail-on-non-empty "${src%/*}"
+  done < <(find "$builddir/Documentation/output" -type f -print0)
+
+  msg2 "Adding symlink..."
+  mkdir -p "$pkgdir/usr/share/doc"
+  ln -sr "$builddir/Documentation" "$pkgdir/usr/share/doc/$pkgbase"
+
+  msg2 "Fixing permissions..."
+  chmod -Rc u=rwX,go=rX "$pkgdir"
+}
+
+pkgname=("$pkgbase" "$pkgbase-headers" "$pkgbase-docs")
+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: