mirror of
https://gitlab.alpinelinux.org/alpine/aports.git
synced 2025-04-19 05:36:38 +02:00
280 lines
8.3 KiB
Text
280 lines
8.3 KiB
Text
# Maintainer: Natanael Copa <ncopa@alpinelinux.org>
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pkgname=linux-rpi
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pkgver=6.12.20
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_kernver=${pkgver%.*}
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pkgrel=0
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pkgdesc="Linux kernel with Raspberry Pi patches"
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url=https://github.com/raspberrypi/linux
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depends="initramfs-generator linux-firmware-brcm"
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_depends_dev="perl gmp-dev elfutils-dev bash mpc1-dev mpfr-dev"
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makedepends="$_depends_dev gcc>=13.1.1_git20230603 sed installkernel bc linux-headers linux-firmware-any
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bison flex openssl-dev>3 findutils xz mawk
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"
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options="!strip !check"
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_rpi_repo="https://github.com/raspberrypi/linux.git"
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_linux_repo="https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
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source="https://cdn.kernel.org/pub/linux/kernel/v${pkgver%%.*}.x/linux-$_kernver.tar.xz
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patch-$pkgver.patch.xz::https://cdn.kernel.org/pub/linux/kernel/v${pkgver%%.*}.x/patch-$pkgver.xz
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https://dev.alpinelinux.org/archive/rpi-patches/rpi-$pkgver-alpine.patch
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common-changes.config
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"
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arch="armhf armv7 aarch64"
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license="GPL-2.0-only"
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builddir="$srcdir"/linux-$_kernver
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_flavors="rpi"
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for _f in $_flavors; do
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if [ "linux-$_f" != "$pkgname" ]; then
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subpackages="$subpackages linux-$_f::$CBUILD_ARCH"
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fi
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subpackages="$subpackages linux-$_f-dev:_dev:$CBUILD_ARCH"
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done
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case "$CARCH" in
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aarch64) _carch="arm64" ;;
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arm*) _carch="arm" ;;
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esac
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prepare() {
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default_prepare
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# remove localversion from patch if any
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rm -f localversion*
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local flavor=
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for flavor in $_flavors; do
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local _builddir="$srcdir"/build-$flavor.$CARCH
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mkdir -p "$_builddir"
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echo "-$pkgrel-$flavor" > "$_builddir"/localversion-alpine
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_genconfig $flavor
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make -C "$builddir" \
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O="$_builddir" \
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ARCH="$_carch" \
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olddefconfig
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_verifyconfig $flavor
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done
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}
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# generate config from defconfig and apply local changes.
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# common-changes.config holds a list of = delimited
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# config command and values used by kernel scripts/config script.
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_genconfig() {
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local flavor=$1 defconfig=
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local _builddir="$srcdir"/build-$flavor.$CARCH
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local defconfig=
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case "$CARCH" in
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armhf) defconfig=bcmrpi_defconfig;;
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armv7) defconfig=bcm2709_defconfig;;
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aarch64) defconfig=bcm2711_defconfig;;
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*) die "Unknown CARCH: $CARCH" ;;
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esac
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cp "$builddir"/arch/$_carch/configs/$defconfig \
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"$_builddir"/.config
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while read line; do
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# skip comments
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case "$line" in
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"#"*) continue;;
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esac
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local option=${line%%=*} str=
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local cmd=$(echo $line | cut -d= -f2)
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case "$cmd" in
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y) cmd="enable";;
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n) cmd="disable";;
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m) cmd="module";;
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'"'*) cmd="set-str"; str="${line#*=}";;
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[0-9]*) cmd="set-val"; str="${line#*=}";;
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*) die "Command $cmd not accepted" ;;
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esac
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msg "[$flavor] $cmd: $option $str"
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"$srcdir"/linux-$_kernver/scripts/config \
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--file "$_builddir"/.config \
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--$cmd "$option" "${str//\"/}"
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done < "$srcdir"/common-changes.config
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}
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# verify if options are set to correct value
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_verifyconfig() {
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local flavor=$1
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local _builddir="$srcdir"/build-$flavor.$CARCH
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while read line; do
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[ ${line:0:1} = "#" ] && continue
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local option=${line%%=*} str= invert=
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local cmd=$(echo $line | cut -d= -f2)
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case "$cmd" in
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enable) str="$option=y" ;;
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disable) str="$option"; invert="-v" ;;
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module) str="$option=m" ;;
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set-val) str="$option=${line##*=}" ;;
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set-str) str=${line##*=}
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str="$option=\"${str//\"/}\"" ;;
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esac
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grep -q $invert "^$str" "$_builddir"/.config || \
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die "Config: $option not properly set!"
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done < "$srcdir"/common-changes.config
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}
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build() {
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unset LDFLAGS
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# for some reason these sometimes leak into the kernel build,
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# -Werror=format-security breaks some stuff
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unset CFLAGS CPPFLAGS CXXFLAGS
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for i in $_flavors; do
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cd "$srcdir"/build-$i.$CARCH
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local _kver=$(make kernelversion)
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if [ "$_kver" != "$pkgver" ]; then
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error "Version in Makefile ($_kver) does not correspond with pkgver ($pkgver)"
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return 1
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fi
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make ARCH="$_carch" CC="${CC:-gcc}" \
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AWK=mawk \
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KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-Alpine"
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done
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}
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_package() {
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local _buildflavor="$1" _outdir="$2"
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local _builddir="$srcdir"/build-$_buildflavor.$CARCH
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cd "$_builddir"
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local _abi_release="$(make -s kernelrelease)"
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mkdir -p "$_outdir"/boot "$_outdir"/lib/modules
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local _install
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case "$CARCH" in
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arm*)
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_install="zinstall dtbs_install"
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;;
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aarch64)
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_install="install dtbs_install"
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;;
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*)
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_install=install
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;;
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esac
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# modules_install seems to regenerate a defect Modules.symvers. Work
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# around it by backing it up and restore it after modules_install
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cp Module.symvers Module.symvers.backup
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local INSTALL_DTBS_PATH="$_outdir"/boot
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make modules_install $_install \
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ARCH="$_carch" \
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INSTALL_MOD_PATH="$_outdir" \
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INSTALL_PATH="$_outdir"/boot \
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INSTALL_DTBS_PATH="$INSTALL_DTBS_PATH"
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cp Module.symvers.backup Module.symvers
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rm -f "$_outdir"/lib/modules/$_abi_release/build \
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"$_outdir"/lib/modules/$_abi_release/source
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rm -rf "$_outdir"/lib/firmware
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install -D -m644 include/config/kernel.release \
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"$_outdir"/usr/share/kernel/$_buildflavor/kernel.release
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# allow the initramfs generators to know the package name the kernel came from
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echo "${subpkgname:-$pkgname}" > "$_outdir"/lib/modules/$_abi_release/pkgname
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if [ "$CARCH" = "aarch64" ]; then
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mv -f "$INSTALL_DTBS_PATH"/broadcom/*.dtb \
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"$INSTALL_DTBS_PATH"
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rmdir "$INSTALL_DTBS_PATH"/broadcom
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fi
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}
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# main flavor installs in $pkgdir
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package() {
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case "$CARCH" in
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armv7)
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provides="linux-rpi2=$pkgver-r$pkgrel" # for backward compatibility
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replaces="linux-rpi2" # for backward compatibility
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;;
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aarch64)
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provides="linux-rpi4=$pkgver-r$pkgrel" # for backward compatibility
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replaces="linux-rpi4" # for backward compatibility
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;;
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esac
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_package rpi "$pkgdir"
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}
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_dev() {
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local _flavor=$(echo $subpkgname | sed -E 's/(^linux-|-dev$)//g')
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local _builddir="$srcdir"/build-$_flavor.$CARCH
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cd "$_builddir"
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local _abi_release="$(make -s kernelrelease)"
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# copy the only the parts that we really need for build 3rd party
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# kernel modules and install those as /usr/src/linux-headers,
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# simlar to what ubuntu does
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#
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# this way you dont need to install the 300-400 kernel sources to
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# build a tiny kernel module
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#
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pkgdesc="Headers and script for third party modules for $_flavor kernel"
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depends="$_depends_dev"
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# handle backward compatibility with legacy flavors
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case "$_flavor" in
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rpi)
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case "$CARCH" in
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armv7)
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provides="linux-rpi2-dev=$pkgver-r$pkgrel"
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replaces="linux-rpi2-dev"
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;;
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aarch64)
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provides="linux-rpi4-dev=$pkgver-r$pkgrel"
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replaces="linux-rpi4-dev"
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;;
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esac
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;;
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*) die "Unknown flavor: $flavor" ;;
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esac
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local dir="$subpkgdir"/usr/src/linux-headers-$_abi_release
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# first we import config, run prepare to set up for building
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# external modules, and create the scripts
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mkdir -p "$dir"
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cp "$_builddir"/.config "$dir"/.config
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echo "-$pkgrel-$_flavor" > "$dir"/localversion-alpine
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make -j1 -C "$builddir" ARCH="$_carch" O="$dir" \
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syncconfig prepare modules_prepare scripts
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# remove the stuff that points to real sources. we want 3rd party
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# modules to believe this is the soruces
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rm "$dir"/Makefile "$dir"/source
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# copy the needed stuff from real sources
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#
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# this is taken from ubuntu kernel build script
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# http://kernel.ubuntu.com/git/ubuntu/ubuntu-zesty.git/tree/debian/rules.d/3-binary-indep.mk
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cd "$builddir"
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find . -path './include/*' -prune \
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-o -path './scripts/*' -prune -o -type f \
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\( -name 'Makefile*' -o -name 'Kconfig*' -o -name 'Kbuild*' -o \
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-name '*.sh' -o -name '*.pl' -o -name '*.lds' \) \
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-print | cpio -pdm "$dir"
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cp -a scripts include "$dir"
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find $(find arch -name include -type d -print) -type f \
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| cpio -pdm "$dir"
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install -Dm644 "$_builddir"/Module.symvers \
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"$dir"/Module.symvers
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mkdir -p "$subpkgdir"/lib/modules/$_abi_release
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ln -sf /usr/src/linux-headers-$_abi_release \
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"$subpkgdir"/lib/modules/$_abi_release/build
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}
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sha512sums="
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a37b1823df7b4f72542f689b65882634740ba0401a42fdcf6601d9efd2e132e5a7650e70450ba76f6cd1f13ca31180f2ccee9d54fe4df89bc0000ade4380a548 linux-6.12.tar.xz
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a1568d4233d900f95fa4394147acdc37498582b050fd6a111506f680636b50b6725bf99d76f4f3613d5af5e50d3e46929d718dae3a59f2174ff53477bef83825 patch-6.12.20.patch.xz
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1df43c301bd779a470d954d2b6faa5e9348743a44ebea1a0e088962c4f99cedb0f35be64a3126c1e0f38d60e5ab2f1f396a09dd26fc811ec31c62bf0f025dfcb rpi-6.12.20-alpine.patch
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7da93feb7e6d0340ed62c579bb1b5c51121c847718f0717e69c539db7055b992df799cbd99ac1747f728b257f43fc5659aec41d8a381e284984049ee6018743d common-changes.config
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"
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