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# Maintainer: Alexey Rychkov <dev at nightfog.net>
# Contributor: Jan Alexander Steffens (heftig) <heftig@archlinux.org>
# Arch Linux kernel source
_ver=5.15.arch1
_srcname=archlinux-linux
_srcurl="https://github.com/archlinux/linux.git"
# Bcachefs kernel source
_bcachefstag=v5.15
_bcachefsname=bcachefs-linux
_bcachefsurl="https://evilpiepirate.org/git/bcachefs.git"
pkgbase=linux-simple-bcachefs-git
pkgver=5.15.arch1.r976
pkgrel=1
pkgdesc='Linux'
_srctag=v${_ver%.*}-${_ver##*.}
url="https://github.com/archlinux/linux/commits/$_srctag"
arch=(x86_64)
license=(GPL2)
makedepends=(
bc kmod libelf pahole cpio perl tar xz
git
)
options=('!strip')
source=(config # the main kernel config file
)
sha256sums=('8a0bdb434ac26c16e3a96f127d68c5585f3c33ee9ed01e12a33e3a36889c9aeb'
)
export KBUILD_BUILD_HOST=archlinux
export KBUILD_BUILD_USER=$pkgbase
export KBUILD_BUILD_TIMESTAMP="$(date -Ru${SOURCE_DATE_EPOCH:+d @$SOURCE_DATE_EPOCH})"
prepare() {
local bcachefspatch="${srcdir}/bcachefs.patch"
echo "Extracting ${_bcachefsname} tree..."
( cd "${srcdir}/$_bcachefsname" && git fetch --depth 1 "$_bcachefsurl" "$_bcachefstag" && git checkout FETCH_HEAD ) ||
( cd "$srcdir" && rm -rf "$_bcachefsname" && git clone --depth 1 --branch "$_bcachefstag" "$_bcachefsurl" "$_bcachefsname" )
cd "${srcdir}/$_bcachefsname"
local version1="$(grep -m 1 -E "^VERSION\s*=\s*[0-9]+\s*$" Makefile | sed -e "s/[^0-9]//g")"
local patchlevel1="$(grep -m 1 -E "^PATCHLEVEL\s*=\s*[0-9]+\s*$" Makefile | sed -e "s/[^0-9]//g")"
echo "Extracting bcachefs patch..."
git fetch --shallow-exclude="$_bcachefstag" "$_bcachefsurl"
local gitMakefile="$(git show FETCH_HEAD:Makefile)"
local version2="$(echo "$gitMakefile" | grep -m 1 -E "^VERSION\s*=\s*[0-9]+\s*$" | sed -e "s/[^0-9]//g")"
local patchlevel2="$(echo "$gitMakefile" | grep -m 1 -E "^PATCHLEVEL\s*=\s*[0-9]+\s*$" | sed -e "s/[^0-9]//g")"
if test "$version1" != "$version2" || test "$patchlevel1" != "$patchlevel2"; then
echo "Expected version is ${version1}.${patchlevel1}, but bcachefs git version is ${version2}.${patchlevel2}. Stopping."
exit 1;
fi
git diff HEAD FETCH_HEAD > "$bcachefspatch"
echo "Extracting ${_srcname} tree..."
( cd "${srcdir}/$_srcname" && git fetch --depth 1 "$_srcurl" "$_srctag" &&
git checkout -f FETCH_HEAD && git clean -fdq ) ||
( cd "$srcdir" && rm -rf "$_srcname" && git clone --depth 1 --branch "$_srctag" "$_srcurl" "$_srcname" )
cd "${srcdir}/$_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 "Applying patch bcachefs.patch..."
patch -Np1 < "$bcachefspatch"
cd "${srcdir}/$_srcname"
echo "Setting config..."
cp ../config .config
printf '%s\n%s\n%s\n%s\n%s\n' \
"CONFIG_BCACHEFS_FS=y" \
"CONFIG_BCACHEFS_QUOTA=y" \
"CONFIG_BCACHEFS_POSIX_ACL=y" \
"# CONFIG_BCACHEFS_DEBUG is not set" \
"# CONFIG_BCACHEFS_TESTS is not set" >> .config
make olddefconfig
diff -u ../config .config || :
make -s kernelrelease > version
echo "Prepared $pkgbase version $(<version)"
}
pkgver() {
cd "$_bcachefsname"
printf "%s.r%s" "$_ver" "$(git rev-list --count FETCH_HEAD)"
}
build() {
cd $_srcname
make all
}
_package() {
pkgdesc="The $pkgdesc kernel and modules with bcachefs support"
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="$pkgdir/usr" INSTALL_MOD_STRIP=1 modules_install
# remove build and source links
rm "$modulesdir"/{source,build}
}
_package-headers() {
pkgdesc="Headers and scripts for building modules for the $pkgdesc kernel with bcachefs support"
depends=(pahole)
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 "$builddir"/{fs/xfs,mm}
echo "Installing headers..."
cp -t "$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
# https://bugs.archlinux.org/task/13146
install -Dt "$builddir/drivers/media/i2c" -m644 drivers/media/i2c/msp3400-driver.h
# https://bugs.archlinux.org/task/20402
install -Dt "$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
# https://bugs.archlinux.org/task/71392
install -Dt "$builddir/drivers/iio/common/hid-sensors" -m644 drivers/iio/common/hid-sensors/*.h
echo "Installing KConfig files..."
find . -name 'Kconfig*' -exec install -Dm644 {} "$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 "Stripping vmlinux..."
strip -v $STRIP_STATIC "$builddir/vmlinux"
echo "Adding symlink..."
mkdir -p "$pkgdir/usr/src"
ln -sr "$builddir" "$pkgdir/usr/src/$pkgbase"
}
pkgname=("$pkgbase" "$pkgbase-headers")
for _p in "${pkgname[@]}"; do
eval "package_$_p() {
$(declare -f "_package${_p#$pkgbase}")
_package${_p#$pkgbase}
}"
done
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