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# Maintainer: Joakim Hernberg <jbh@alchemy.lu>
# Contributor: David Runge <dvzrv@archlinux.org>
_pkgver=4.19.106
_rtpatchver=46
pkgbase=linux-rt-lts
pkgver=${_pkgver}.${_rtpatchver}
pkgrel=1
arch=('x86_64')
url="https://wiki.linuxfoundation.org/realtime/start"
license=('GPL2')
makedepends=('bc' 'git' 'graphviz' 'imagemagick' 'inetutils' 'kmod' 'libelf'
'python-sphinx' 'python-sphinx_rtd_theme' 'xmlto')
options=('!strip')
_srcname=linux-${_pkgver}
source=(
"https://www.kernel.org/pub/linux/kernel/v4.x/linux-${_pkgver}.tar.xz"
"https://www.kernel.org/pub/linux/kernel/v4.x/linux-${_pkgver}.tar.sign"
"https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patch-${_pkgver}-rt${_rtpatchver}.patch.xz"
"https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patch-${_pkgver}-rt${_rtpatchver}.patch.sign"
'config'
'0001-ZEN-Add-sysctl-and-CONFIG-to-disallow-unprivileged-C.patch'
)
validpgpkeys=(
'ABAF11C65A2970B130ABE3C479BE3E4300411886' # Linus Torvalds
'647F28654894E3BD457199BE38DBBDC86092693E' # Greg Kroah-Hartman
'8218F88849AAC522E94CF470A5E9288C4FA415FA' # Jan Alexander Steffens (heftig)
'64254695FFF0AA4466CC19E67B96E8162A8CF5D1' # Sebastian Andrzej Siewior
'5ED9A48FC54C0A22D1D0804CEBC26CDB5A56DE73' # Steven Rostedt
'E644E2F1D45FA0B2EAA02F33109F098506FF0B14' # Thomas Gleixner
)
sha256sums=('63c8bd76a9b282e18112f8ff9e3fd41e3d1df9f9b7248ea1a370b05a827e9cda'
'SKIP'
'4b16c051cbf28c76a1b34d1b24ea4dcb9be28bdb640eab0c01f24b090e828a07'
'SKIP'
'285708f83ef8aa4bc25643b2abd1a1aa7313f368d7221fa1c4bb6512b7a63236'
'a13581d3c6dc595206e4fe7fcf6b542e7a1bdbe96101f0f010fc5be49f99baf2')
export KBUILD_BUILD_HOST=archlinux
export KBUILD_BUILD_USER=$pkgbase
export KBUILD_BUILD_TIMESTAMP="$(date -Ru${SOURCE_DATE_EPOCH:+d @$SOURCE_DATE_EPOCH})"
prepare() {
cd $_srcname
# apply realtime patch
msg "applying patch-${_pkgver}-rt${_rtpatchver}.patch"
patch -Np1 -i "../patch-${_pkgver}-rt${_rtpatchver}.patch"
echo "Setting version..."
scripts/setlocalversion --save-scmversion
echo "-$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 .config
make olddefconfig
# make menuconfig # CLI menu for configuration
make -s kernelrelease > version
echo "Prepared %s version %s" "$pkgbase" "$(<version)"
}
build() {
cd $_srcname
make bzImage modules htmldocs
}
_package() {
pkgdesc="The ${pkgbase/linux/Linux} 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')
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}
echo "Fixing permissions..."
chmod -Rc u=rwX,go=rX "$pkgdir"
}
_package-headers() {
pkgdesc="Header files and scripts for building modules for ${pkgbase/linux/Linux} 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
cp -t "$builddir" -a scripts
# add objtool for external module building and enabled VALIDATION_STACK option
install -Dt "$builddir/tools/objtool" tools/objtool/objtool
# add xfs and shmem for aufs building
mkdir -p "$builddir"/{fs/xfs,mm}
# this is gone in v5.3
mkdir "$builddir/.tmp_versions"
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/$pkgbase"
echo "Fixing permissions..."
chmod -Rc u=rwX,go=rX "$pkgdir"
}
_package-docs() {
pkgdesc="Kernel hackers manual - HTML documentation that comes with the ${pkgbase/linux/Linux} 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"
echo "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:
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