APKBUILD 5.9 KB
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# Maintainer: Natanael Copa <ncopa@alpinelinux.org>
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_flavor=grsec
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pkgname=linux-${_flavor}
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pkgver=3.12.7
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case $pkgver in
*.*.*)	_kernver=${pkgver%.*};;
*.*)	_kernver=${pkgver};;
esac
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pkgrel=0
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pkgdesc="Linux kernel with grsecurity"
url=http://grsecurity.net
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depends="mkinitfs linux-firmware"
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makedepends="perl sed installkernel bash gmp-dev bc"
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options="!strip"
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_config=${config:-kernelconfig.${CARCH}}
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install=
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source="http://ftp.kernel.org/pub/linux/kernel/v3.x/linux-$_kernver.tar.xz
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	http://ftp.kernel.org/pub/linux/kernel/v3.x/patch-$pkgver.xz
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	grsecurity-3.0-3.12.7-201401120824.patch
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	fix-memory-map-for-PIE-applications.patch
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	kernelconfig.x86
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	kernelconfig.x86_64
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	"
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subpackages="$pkgname-dev"
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arch="x86 x86_64 arm"
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license="GPL-2"
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_abi_release=${pkgver}-${pkgrel}-${_flavor}
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prepare() {
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	local _patch_failed=
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	cd "$srcdir"/linux-$_kernver
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	if [ "${pkgver%.0}" = "$pkgver" ]; then
		msg "Applying patch-$pkgver.xz"
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		unxz -c < "$srcdir"/patch-$pkgver.xz | patch -p1 -N || return 1
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	fi

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	# first apply patches in specified order
	for i in $source; do
		case $i in
		*.patch)
			msg "Applying $i..."
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			if ! patch -s -p1 -N -i "$srcdir"/$i; then
				echo $i >>failed
				_patch_failed=1
			fi
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			;;
		esac
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	done

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	if ! [ -z "$_patch_failed" ]; then
		error "The following patches failed:"
		cat failed
		return 1
	fi

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	echo "-$pkgrel" > localversion-alpine

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	mkdir -p "$srcdir"/build
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	cp "$srcdir"/$_config "$srcdir"/build/.config || return 1
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	make -C "$srcdir"/linux-$_kernver O="$srcdir"/build HOSTCC="${CC:-gcc}" \
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		silentoldconfig
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}

# this is so we can do: 'abuild menuconfig' to reconfigure kernel
menuconfig() {
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	cd "$srcdir"/build || return 1
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	make menuconfig
	cp .config "$startdir"/$_config
}

build() {
	cd "$srcdir"/build
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	export GCC_SPECS=hardenednopie.specs
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	make CC="${CC:-gcc}" \
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		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-Alpine" \
		|| return 1
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}
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package() {
	cd "$srcdir"/build
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	mkdir -p "$pkgdir"/boot "$pkgdir"/lib/modules
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	make -j1 modules_install firmware_install install \
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		INSTALL_MOD_PATH="$pkgdir" \
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		INSTALL_PATH="$pkgdir"/boot \
		|| return 1
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	rm -f "$pkgdir"/lib/modules/${_abi_release}/build \
		"$pkgdir"/lib/modules/${_abi_release}/source
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	rm -rf "$pkgdir"/lib/firmware

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	install -D include/config/kernel.release \
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		"$pkgdir"/usr/share/kernel/$_flavor/kernel.release
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}

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dev() {
	# copy the only the parts that we really need for build 3rd party
	# kernel modules and install those as /usr/src/linux-headers,
	# simlar to what ubuntu does
	#
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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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	pkgdesc="Headers and script for third party modules for grsec kernel"
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	depends="gmp-dev bash"
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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 "$dir"
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	cp "$srcdir"/$_config "$dir"/.config
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	make -j1 -C "$srcdir"/linux-$_kernver O="$dir" HOSTCC="${CC:-gcc}" \
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		silentoldconfig prepare modules_prepare scripts 
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	# remove the stuff that poits to real sources. we want 3rd party
	# 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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	# this is taken from ubuntu kernel build script
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	# http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-jaunty.git;a=blob;f=debian/rules.d/3-binary-indep.mk;hb=HEAD
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	cd "$srcdir"/linux-$_kernver
	find . -path './include/*' -prune -o -path './scripts/*' -prune \
		-o -type f \( -name 'Makefile*' -o -name 'Kconfig*' \
		-o -name 'Kbuild*' -o -name '*.sh' -o -name '*.pl' \
		-o -name '*.lds' \) | cpio -pdm "$dir"
	cp -a drivers/media/dvb/dvb-core/*.h "$dir"/drivers/media/dvb/dvb-core
	cp -a drivers/media/video/*.h "$dir"/drivers/media/video
	cp -a drivers/media/dvb/frontends/*.h "$dir"/drivers/media/dvb/frontends
	cp -a scripts include "$dir"
	find $(find arch -name include -type d -print) -type f \
		| cpio -pdm "$dir"
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	install -Dm644 "$srcdir"/build/Module.symvers \
		"$dir"/Module.symvers
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	mkdir -p "$subpkgdir"/lib/modules/${_abi_release}
	ln -sf /usr/src/linux-headers-${_abi_release} \
		"$subpkgdir"/lib/modules/${_abi_release}/build
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}

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md5sums="cc6ee608854e0da4b64f6c1ff8b6398c  linux-3.12.tar.xz
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a158a29ecf49e768ebd2f34967991606  patch-3.12.7.xz
a90b0bcd0ece5c0bee4fa8155a0122fd  grsecurity-3.0-3.12.7-201401120824.patch
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c6a4ae7e8ca6159e1631545515805216  fix-memory-map-for-PIE-applications.patch
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6dcd7940c137dadcd01a4e0f3fbc7446  kernelconfig.x86
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22c5cf50df52d24d222473760a007869  kernelconfig.x86_64"
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sha256sums="2e120ec7fde19fa51dc6b6cc11c81860a0775defcad5a5bf910ed9a50e845a02  linux-3.12.tar.xz
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ac57d56064bb23dae55fe656c407c662e842c98a6a5411251d6bb79c9718f555  patch-3.12.7.xz
1ff99432fb966b8646bfa73f6828c8e25351afcfac2acbd3f019448926de9278  grsecurity-3.0-3.12.7-201401120824.patch
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500f3577310be52e87b9fecdc2e9c4ca43210fd97d69089f9005d484563f74c7  fix-memory-map-for-PIE-applications.patch
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ab5f8d000dae45616dad9857e24961b315bc5a43f86805875c051961152a9ee3  kernelconfig.x86
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46739cf496107e88e8ccc648b90b7dd0a62738fda286f2908c9aecc8ee239c8a  kernelconfig.x86_64"
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sha512sums="4ba5797e0772726d05c9f2eee66dc6dc2a5033c749ef44764c805a83da739ed5d0c6443b76785e38fe1ef74cc7ade787e48144faed0cfcb6f124f05248c700ff  linux-3.12.tar.xz
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070536e1ed0911e91e96f32038b38efd8d531a306b09eb3074f68ebd7c582cf09574ea712666c3e3dff8443d66d054028a58497dd5e11f66d3bb5eb4570aee78  patch-3.12.7.xz
34475fd4f167492550f2cc0df7f0b4eb4f616e1a40d1e914128c20b0ec3a77d7c7a57f1fe7874316e4081ac15d06e4bf33b841477b69757409fe54c4f40d76ce  grsecurity-3.0-3.12.7-201401120824.patch
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4665c56ae1bbac311f9205d64918e84ee8b01d47d6e2396ff6b8adfb10aada7f7254531ce62e31edbb65c2a54a830f09ad05d314dfcd75d6272f4068945ad7c7  fix-memory-map-for-PIE-applications.patch
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fd66d8704ef272c0d7b35237dcd297484afa39eeb8f1a820b6734e8e636c8db699116247a89dac99a59372d8dcf5125b04676d60c27eea5f65a2dbfa07aa39f8  kernelconfig.x86
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3ff4b1d67975376a562624691d0ab03f4760ba8d9283719bbbfd281c49399a83feaefa70186cd1f1ca654f4e1110d9c2326f7a07bb862c59a92a7e93b9d99592  kernelconfig.x86_64"