APKBUILD 3.97 KB
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# Maintainer: Natanael Copa <ncopa@alpinelinux.org>

_flavor=grsec
pkgname=linux-${_flavor}
pkgver=2.6.30.10
_kernver=2.6.30
pkgrel=0
pkgdesc="Linux kernel with grsecurity"
url=http://grsecurity.net
depends="mkinitfs linux-firmware"
makedepends="perl installkernel"
_config=${config:-kernelconfig}
install=
source="ftp://ftp.kernel.org/pub/linux/kernel/v2.6/linux-$_kernver.tar.bz2
	ftp://ftp.kernel.org/pub/linux/kernel/v2.6/patch-$pkgver.bz2
	grsecurity-2.1.14-2.6.30.8-200909262311.patch
	net-next-2.6.git-5ef12d98a19254ee5dc851bd83e214b43ec1f725.patch
	$_config
	"
subpackages="$pkgname-dev linux-firmware:firmware"
license="GPL-2"

_abi_release=${pkgver}-${_flavor}

_prepare() {
	cd "$srcdir"/linux-$_kernver
	if [ "$_kernver" != "$pkgver" ]; then
		bunzip2 -c < ../patch-$pkgver.bz2 | patch -p1 -N || return 1
	fi

	for i in ../*.diff ../*.patch; do
		[ -f $i ] || continue
		msg "Applying $i..."
		patch -p1 -N < $i || return 1
	done

	mkdir -p "$srcdir"/build
	cp "$srcdir"/$_config "$srcdir"/build/.config
	make -C "$srcdir"/linux-$_kernver O="$srcdir"/build HOSTCC="$CC" \
		silentoldconfig
}

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

build() {
	_prepare || return 1
	cd "$srcdir"/build
	make CC="$CC" || return 1

	mkdir -p "$pkgdir"/boot "$pkgdir"/lib/modules
	make modules_install install \
		INSTALL_MOD_PATH="$pkgdir" \
		INSTALL_PATH="$pkgdir"/boot

#	ln -s vmlinuz-${_abi_release} "${pkgdir}"/boot/$_flavor

	rm -f "$pkgdir"/lib/modules/${_abi_release}/build \
		"$pkgdir"/lib/modules/${_abi_release}/source
	install -D include/config/kernel.release \
		"$pkgdir"/usr/share/kernel/$_flavor/kernel.release
}

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
	#
	# this way you dont need to install the 300-400 kernel sources to 
	# build a tiny kernel module
	#
	pkgdesc="Headers and script for third party modules for grsec kernel"
	local dir="$subpkgdir"/usr/src/linux-headers-${_abi_release}

	# first we import config, run prepare to set up for building 
	# external modules, and create the scripts
	mkdir -p "$dir"
	cp "$srcdir"/kernelconfig "$dir"/.config
	make -j1 -C "$srcdir"/linux-$_kernver O="$dir" HOSTCC="$CC" \
		silentoldconfig prepare scripts

	# remove the stuff that poits to real sources. we want 3rd party
	# modules to believe this is the soruces
	rm "$dir"/Makefile "$dir"/source

	# copy the needed stuff from real sources
	#
	# this is taken from ubuntu kernel build script
	# http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-jaunty.git;a=blob;f=debian/rules.d/3-binary-indep.mk;hb=HEAD
	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"

	install -Dm644 "$srcdir"/build/Module.symvers \
		"$dir"/Module.symvers

	mkdir -p "$subpkgdir"/lib/modules/${_abi_release}
	ln -sf /usr/src/linux-headers-${_abi_release} \
		"$subpkgdir"/lib/modules/${_abi_release}/build
}

firmware() {
	pkgdesc="Firmware for linux kernel"
	replaces="linux-grsec linux-vserver"
	mkdir -p "$subpkgdir"/lib
	mv "$pkgdir"/lib/firmware "$subpkgdir"/lib/
}

md5sums="7a80058a6382e5108cdb5554d1609615  linux-2.6.30.tar.bz2
6485fe0cf0f0220493647505bfd2f7b0  patch-2.6.30.10.bz2
287a382cfb72043867d8092996875f5d  grsecurity-2.1.14-2.6.30.8-200909262311.patch
ca05fd252783b82e01610e775cf56498  net-next-2.6.git-5ef12d98a19254ee5dc851bd83e214b43ec1f725.patch
9f41d910914f5a516072f0aa500fa117  kernelconfig"