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# Maintainer: Joakim Hernberg <jbh@alchemy.lu>
# Contributor: David Runge <dave@sleepmap.de>
# Contributor: Ray Rashif <schiv@archlinux.org>
# Contributor: timbosa <tinny_tim@dodo.com.au>
# Contributor: Jan Alexander Steffens (heftig) <jan.steffens@gmail.com>
# Contributor: Tobias Powalowski <tpowa@archlinux.org>
# Contributor: Thomas Baechler <thomas@archlinux.org>
#pkgbase=linux # Build stock -ARCH kernel
pkgbase=linux-rt-lts # Build kernel with a different name
_pkgver=4.19.72
_rtpatchver=rt26
pkgver=${_pkgver}_${_rtpatchver}
pkgrel=1
arch=('x86_64')
url="https://wiki.linuxfoundation.org/realtime/start"
license=('GPL2')
makedepends=('bc' 'git' 'inetutils' 'kmod' 'libelf' '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}-${_rtpatchver}.patch.xz"
"https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patch-${_pkgver}-${_rtpatchver}.patch.sign"
0001-add-sysctl-to-disallow-unprivileged-CLONE_NEWUSER-by.patch
0002-ZEN-Add-CONFIG-for-unprivileged_userns_clone.patch
config # the main kernel config file
60-${pkgbase}.hook # pacman hook for depmod
90-${pkgbase}.hook # pacman hook for initramfs regeneration
${pkgbase}.preset # standard config files for mkinitcpio ramdisk
)
validpgpkeys=(
'ABAF11C65A2970B130ABE3C479BE3E4300411886' # Linus Torvalds
'647F28654894E3BD457199BE38DBBDC86092693E' # Greg Kroah-Hartman
'8218F88849AAC522E94CF470A5E9288C4FA415FA' # Jan Alexander Steffens (heftig)
'64254695FFF0AA4466CC19E67B96E8162A8CF5D1' # Sebastian Andrzej Siewior
'5ED9A48FC54C0A22D1D0804CEBC26CDB5A56DE73' # Steven Rostedt
'E644E2F1D45FA0B2EAA02F33109F098506FF0B14' # Thomas Gleixner
)
sha256sums=('f9fcb6b3bd29115ac55fc154e300c3dce2044502732f6842ad6c25e6f9f51f6d'
'SKIP'
'7e360014f510daf6ab886f272531f98d9ae5cb5a55973a9b636346ac45f841f6'
'SKIP'
'75aa8dd708ca5a0137fbf7cddc9cafefe6aac6b8e0638c06c156d412d05af4bc'
'67aed9742e4281df6f0bd18dc936ae79319fee3763737f158c0e87a6948d100d'
'e5a6ac3346c359353b3a7491bb77637870328a4bf3f3d57bf434a29b72632600'
'ae2e95db94ef7176207c690224169594d49445e04249d2499e9d2fbc117a0b21'
'75f99f5239e03238f88d1a834c50043ec32b1dc568f2cc291b07d04718483919'
'ad6344badc91ad0630caacde83f7f9b97276f80d26a20619a87952be65492c65')
_kernelname=${pkgbase#linux}
: ${_kernelname:=-ARCH}
prepare() {
cd $_srcname
# apply realtime patch
msg "applying patch-${_pkgver}-${_rtpatchver}.patch"
patch -Np1 -i ../patch-${_pkgver}-${_rtpatchver}.patch
msg2 "Setting version..."
scripts/setlocalversion --save-scmversion
echo "-$pkgrel" > localversion.10-pkgrel
echo "$_kernelname" > localversion.20-pkgname
local src
for src in "${source[@]}"; do
src="${src%%::*}"
src="${src##*/}"
[[ $src = *.patch ]] || continue
msg2 "Applying patch $src..."
patch -Np1 < "../$src"
done
msg2 "Setting config..."
cp ../config .config
make olddefconfig
# make menuconfig # CLI menu for configuration
make -s kernelrelease > ../version
msg2 "Prepared %s version %s" "$pkgbase" "$(<../version)"
}
build() {
cd $_srcname
make bzImage modules
}
_package() {
pkgdesc="The ${pkgbase/linux/Linux} kernel and modules"
[[ $pkgbase = linux ]] && groups=(base)
depends=(coreutils linux-firmware kmod mkinitcpio)
optdepends=('crda: to set the correct wireless channels of your country'
'linux-firmware: firmware images needed for some devices')
backup=("etc/mkinitcpio.d/$pkgbase.preset")
install=${pkgbase}.install
local kernver="$(<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" ../${pkgbase}.preset | install -Dm644 /dev/stdin \
"$pkgdir/etc/mkinitcpio.d/$pkgbase.preset"
sed "$subst" ../60-${pkgbase}.hook | install -Dm644 /dev/stdin \
"$pkgdir/usr/share/libalpm/hooks/60-$pkgbase.hook"
sed "$subst" ../90-${pkgbase}.hook | install -Dm644 /dev/stdin \
"$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 ${pkgbase/linux/Linux} kernel"
local builddir="$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/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 "$builddir"/{fs/xfs,mm}
# ???
mkdir "$builddir/.tmp_versions"
msg2 "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 "$builddir/drivers/media/tuners" -m644 drivers/media/tuners/*.h
msg2 "Installing KConfig files..."
find . -name 'Kconfig*' -exec install -Dm644 {} "$builddir/{}" \;
msg2 "Removing unneeded architectures..."
local arch
for arch in "$builddir"/arch/*/; do
[[ $arch = */x86/ ]] && 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 ${pkgbase/linux/Linux} kernel"
local builddir="$pkgdir/usr/lib/modules/$(<version)/build"
cd $_srcname
msg2 "Installing documentation..."
mkdir -p "$builddir"
cp -t "$builddir" -a Documentation
msg2 "Adding symlink..."
mkdir -p "$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:
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