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# Maintainer: Joan Figueras <ffigue at gmail dot com>
# Contributor: Torge Matthies <openglfreak at googlemail dot com>
# Contributor: Jan Alexander Steffens (heftig) <jan.steffens@gmail.com>
# Contributor: Yoshi2889 <rick.2889 at gmail dot com>
# Contributor: Tobias Powalowski <tpowa@archlinux.org>
# Contributor: Thomas Baechler <thomas@archlinux.org>
##
## The following variables can be customized at build time. Use env or export to change at your wish
##
## Example: env _microarchitecture=25 use_numa=n use_tracers=n use_pds=n makepkg -sc
##
## Look inside 'choose-gcc-optimization.sh' to choose your microarchitecture
## Valid numbers between: 0 to 42
## Default is: 0 => generic
## Good option if your package is for one machine: 42 => native
if [ -z ${_microarchitecture+x} ]; then
_microarchitecture=0
fi
## Disable NUMA since most users do not have multiple processors. Breaks CUDA/NvEnc.
## Archlinux and Xanmod enable it by default.
## Set variable "use_numa" to: n to disable (possibly increase performance)
## y to enable (stock default)
if [ -z ${use_numa+x} ]; then
use_numa=y
fi
## For performance you can disable FUNCTION_TRACER/GRAPH_TRACER. Limits debugging and analyzing of the kernel.
## Stock Archlinux and Xanmod have this enabled.
## Set variable "use_tracers" to: n to disable (possibly increase performance)
## y to enable (stock default)
if [ -z ${use_tracers+x} ]; then
use_tracers=y
fi
## Enable PDS CPU scheduler by default https://gitlab.com/alfredchen/linux-pds
## Set variable "use_pds" to: n to disable (stock Xanmod)
## y to enable
if [ -z ${use_pds+x} ]; then
use_pds=n
fi
## Enable CONFIG_USER_NS_UNPRIVILEGED flag https://aur.archlinux.org/cgit/aur.git/tree/0001-ZEN-Add-sysctl-and-CONFIG-to-disallow-unprivileged-C.patch?h=linux-ck
## Set variable "use_ns" to: n to disable (stock Xanmod)
## y to enable (stock Archlinux)
if [ -z ${use_ns+x} ]; then
use_ns=n
fi
# Compile ONLY used modules to VASTLYreduce the number of modules built
# and the build time.
#
# To keep track of which modules are needed for your specific system/hardware,
# give module_db script a try: https://aur.archlinux.org/packages/modprobed-db
# This PKGBUILD read the database kept if it exists
#
# More at this wiki page ---> https://wiki.archlinux.org/index.php/Modprobed-db
if [ -z ${_localmodcfg} ]; then
_localmodcfg=n
fi
# Tweak kernel options prior to a build via nconfig
_makenconfig=
### IMPORTANT: Do no edit below this line unless you know what you're doing
pkgbase=linux-xanmod-lts
pkgver=5.4.47
_major=5.4
_branch=5.x
xanmod=1
pkgrel=1
pkgdesc='Linux Xanmod LTS'
url="http://www.xanmod.org/"
arch=(x86_64)
license=(GPL2)
makedepends=(
xmlto kmod inetutils bc libelf cpio
python-sphinx python-sphinx_rtd_theme graphviz imagemagick
)
options=('!strip')
_srcname="linux-${pkgver}-xanmod${xanmod}"
source=("https://cdn.kernel.org/pub/linux/kernel/v${_branch}/linux-${_major}.tar."{xz,sign}
"https://github.com/xanmod/linux/releases/download/${pkgver}-xanmod${xanmod}/patch-${pkgver}-xanmod${xanmod}.xz"
choose-gcc-optimization.sh
'0001-ZEN-Add-sysctl-and-CONFIG-to-disallow-unprivileged-CLONE_NEWUSER.patch::https://aur.archlinux.org/cgit/aur.git/plain/0001-ZEN-Add-sysctl-and-CONFIG-to-disallow-unprivileged-C.patch?h=linux-ck&id=616ec1bb1f2c0fc42b6fb5c20995996897b4f43b')
validpgpkeys=(
'ABAF11C65A2970B130ABE3C479BE3E4300411886' # Linux Torvalds
'647F28654894E3BD457199BE38DBBDC86092693E' # Greg Kroah-Hartman
)
# Archlinux patches
_commits=""
for _patch in $_commits; do
source+=("${_patch}.patch::https://git.archlinux.org/linux.git/patch/?id=${_patch}")
done
sha256sums=('bf338980b1670bca287f9994b7441c2361907635879169c64ae78364efc5f491'
'SKIP'
'005855d0fd6b2960f5fc2bb55b0fc730d20fae068e8bffee3162c6ca8853fd26'
'2c7369218e81dee86f8ac15bda741b9bb34fa9cefcb087760242277a8207d511'
'9c507bdb0062b5b54c6969f7da9ec18b259e06cd26dbe900cfe79a7ffb2713ee')
export KBUILD_BUILD_HOST=${KBUILD_BUILD_HOST:-archlinux}
export KBUILD_BUILD_USER=${KBUILD_BUILD_USER:-makepkg}
export KBUILD_BUILD_TIMESTAMP=${KBUILD_BUILD_TIMESTAMP:-$(date -Ru${SOURCE_DATE_EPOCH:+d @$SOURCE_DATE_EPOCH})}
prepare() {
cd linux-${_major}
# Apply Xanmod patch
patch -Np1 -i ../patch-${pkgver}-xanmod${xanmod}
msg2 "Setting version..."
scripts/setlocalversion --save-scmversion
echo "-$pkgrel" > localversion.10-pkgrel
echo "${pkgbase#linux}" > localversion.20-pkgname
# Archlinux patches
local src
for src in "${source[@]}"; do
src="${src%%::*}"
src="${src##*/}"
[[ $src = *.patch ]] || continue
msg2 "Applying patch $src..."
patch -Np1 < "../$src"
done
# CONFIG_STACK_VALIDATION gives better stack traces. Also is enabled in all official kernel packages by Archlinux team
scripts/config --enable CONFIG_STACK_VALIDATION
# Enable IKCONFIG following Arch's philosophy
scripts/config --enable CONFIG_IKCONFIG \
--enable CONFIG_IKCONFIG_PROC
# User set. See at the top of this file
if [ "$use_tracers" = "n" ]; then
msg2 "Disabling FUNCTION_TRACER/GRAPH_TRACER..."
scripts/config --disable CONFIG_FUNCTION_TRACER \
--disable CONFIG_STACK_TRACER
fi
if [ "$use_numa" = "n" ]; then
msg2 "Disabling NUMA..."
scripts/config --disable CONFIG_NUMA
fi
if [ "$use_pds" = "y" ]; then
msg2 "Enabling PDS CPU scheduler by default..."
scripts/config --enable CONFIG_SCHED_PDS
fi
if [ "$use_ns" = "n" ]; then
msg2 "Disabling CONFIG_USER_NS_UNPRIVILEGED"
scripts/config --disable CONFIG_USER_NS_UNPRIVILEGED
fi
# Let's user choose microarchitecture optimization in GCC
sh ${srcdir}/choose-gcc-optimization.sh $_microarchitecture
# This is intended for the people that want to build this package with their own config
# Put the file "myconfig" at the package folder to use this feature
# If it's a full config, will be replaced
# If not, you should use scripts/config commands, one by line
if [ -f "${startdir}/myconfig" ]; then
if [ $(wc -l < "${startdir}/myconfig") -gt 5000 ]; then
# myconfig is a full config file. Replace it
msg2 "Using user CUSTOM config..."
cp -f "${startdir}"/myconfig .config
else
# myconfig is a partial file. Applying every line
msg2 "Applying configs..."
cat "${startdir}"/myconfig | while read -r _linec ; do
if echo "$_linec" | grep "scripts/config" ; then
set -- $_linec
"$@"
else
warning "Line format incorrect, ignoring..."
fi
done
fi
echo
fi
make olddefconfig
### Optionally load needed modules for the make localmodconfig
# See https://aur.archlinux.org/packages/modprobed-db
if [ "$_localmodcfg" = "y" ]; then
if [ -f $HOME/.config/modprobed.db ]; then
msg2 "Running Steven Rostedt's make localmodconfig now"
make LSMOD=$HOME/.config/modprobed.db localmodconfig
else
msg2 "No modprobed.db data found"
exit
fi
fi
make -s kernelrelease > version
msg2 "Prepared %s version %s" "$pkgbase" "$(<version)"
[[ -z "$_makenconfig" ]] || make nconfig
# save configuration for later reuse
cat .config > "${startdir}/config.last"
}
build() {
cd linux-${_major}
make all
}
_package() {
pkgdesc="The Linux kernel and modules with Xanmod patches"
depends=(coreutils kmod initramfs)
optdepends=('crda: to set the correct wireless channels of your country'
'linux-firmware: firmware images needed for some devices')
provides=('linux')
cd linux-${_major}
local kernver="$(<version)"
local modulesdir="$pkgdir/usr/lib/modules/$kernver"
msg2 "Installing boot image..."
# systemd expects to find the kernel here to allow hibernation
# https://github.com/systemd/systemd/commit/edda44605f06a41fb86b7ab8128dcf99161d2344
install -Dm644 "$(make -s image_name)" "$modulesdir/vmlinuz"
# Used by mkinitcpio to name the kernel
echo "$pkgbase" | install -Dm644 /dev/stdin "$modulesdir/pkgbase"
msg2 "Installing modules..."
make INSTALL_MOD_PATH="$pkgdir/usr" modules_install
# remove build and source links
rm "$modulesdir"/{source,build}
msg2 "Fixing permissions..."
chmod -Rc u=rwX,go=rX "$pkgdir"
}
_package-headers() {
pkgdesc="Header files and scripts for building modules for Xanmod Linux kernel"
provides=('linux-headers')
cd linux-${_major}
local builddir="$pkgdir/usr/lib/modules/$(<version)/build"
msg2 "Installing build files..."
install -Dt "$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 "$builddir"/{fs/xfs,mm}
msg2 "Installing headers..."
cp -t "$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/$pkgbase"
msg2 "Fixing permissions..."
chmod -Rc u=rwX,go=rX "$pkgdir"
}
pkgname=("${pkgbase}" "${pkgbase}-headers")
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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