R11-unstable/include/kernel.sminc

# kernel global smage functions
# $Id$

# needed extra vars:
#  ${KERNEL_TYPE}:       needed, 'sources', 'headers' or 'image'
#  ${BRANCH}:            needed, style branch of the kernel
#  ${KERNEL_CONFIG}:     optional, needed if you want to override the default
#                        searchpath ${SOURCEDIR}/${PNAME}/config-${PVER}-${BRANCH}-${PBUILD}
#
#  ${PSUBVER}:           optional, only needed for 2.6.x.x naming scheme
#  ${EXTRAVERSION}:      optinal, extra version for the kernel name
#                        default setting is ${PSUBVER}-${BRANCH}-${PBUILD}
#  ${KERNEL_IMAGE_PATH}: override the default KERNEL_IMAGE_PATH (to build xen images for e.g.)
#  ${COMPRESS_MODULES}:  compresses the kernel modules with given compressor (gzip|bzip2|xz)
#  ${LINUX_FIRMWARE}:    remove included firmware bits if requested
#                        set the version here like USE_LINUX_FIRMARE="20110605"
#                        version "internal" keeps the bits too
#
#  ${INCLUDE_KERNELVERSION_FILE}: creates a /boot/kernelversion file (deprecated)
#  ${USE_KERNEL_SYMLINKS}: creates symlinks to unversioned kernel image files
#			   - kernel-x.x.x.x -> /boot/vmlinuz
#			   - initrd-x.x.x.x -> /boot/initrd
#			   - config-x.x.x.x -> /boot/config
#			   - System.map-x.x.x.x -> /boot/System.map

sminclude mtools

# remove me when all distris support this:
if [[ ${USE_KERNEL_ARCH_EXTENSION} = true ]]
then
	KERNEL_ARCH_EXTENSION="-${ARCH}"
else
	KERNEL_ARCH_EXTENSION=""
fi

if [[ ! -z ${COMPRESS_MODULES} ]]
then
	case ${COMPRESS_MODULES} in
		gzip)
			COMPRESS_MODULES_CMD="gzip -9v"
			SDEPEND="${SDEPEND}
				>= app-arch/gzip-1.4"
			;;
		bzip2)
			COMPRESS_MODULES_CMD="bzip2 -9v"
			SDEPEND="${SDEPEND}
				>= app-arch/bzip2-1.0.6"
			;;
		xz)
			COMPRESS_MODULES_CMD="xz -9v"
			SDEPEND="${SDEPEND}
				>= app-arch/xz-5"
			;;
		none)
			echo "Disabled compressed kernel-modules!"
			COMPRESS_MODULES_CMD=""
			;;
		*) die "Unkown compression format '${COMPRESS_MODULES}'" ;;
	esac
fi

# some sane defaults
: ${PCAT="sys-kernel"}
: ${HOMEPAGE="http://magellan-linux.de/"}
: ${TARBALLPVER="${PVER}"}
: ${SRCFILE="linux-${TARBALLPVER}.tar.bz2"}
: ${SRCDIR="${BUILDDIR}/linux-${PVER}-${BRANCH}-${PBUILD}"}

if [[ -z ${SRC_URI[*]} ]]
then
	SRC_URI=(
		http://www.kernel.org/pub/linux/kernel/v$(echo ${PVER} | cut -d. -f1).x/${SRCFILE}
		http://ftp.uni-erlangen.de/pub/Linux/MIRROR.kernel/v$(echo ${PVER} | cut -d. -f1).x/${SRCFILE}
		mirror://kernel-${BRANCH}/${SRCFILE}
	)
	case ${KERNEL_TYPE} in
		image|sources)
				SRC_URI=(
					${SRC_URI[*]}
					mirror://kernel-${BRANCH}/config-${PVER}-${BRANCH}-${PBUILD}-i686
					mirror://kernel-${BRANCH}/config-${PVER}-${BRANCH}-${PBUILD}-x86_64
				)
			;;
	esac
fi

case ${KERNEL_TYPE} in
	image)
		: ${PROVIDE="virtual/kernel"}
		: ${DEPEND=">= virtual/module-tools
			>= sys-fs/udev-115
			>= virtual/initramfs-tools
			>= virtual/initscripts"}
			if [[ ! -z ${LINUX_FIRMWARE}  ]] && [[ ${LINUX_FIRMWARE} != internal ]]
			then
				DEPEND="${DEPEND}
					>= sys-kernel/linux-firmware-${LINUX_FIRMWARE}"
			fi
		SDEPEND="${SDEPEND}
			>= sys-dev/bc-1.06"
		: ${DESCRIPTION="Kernel image of the '${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}' kernel branch."}
		;;

	sources)
		: ${PROVIDE="virtual/kernel-sources"}
		: ${DESCRIPTION="Kernel sources of the '${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}' kernel branch."}
		;;

	headers)
		: ${PROVIDE="virtual/kernel-headers"}
		: ${DESCRIPTION="Sanitized kernel headers for libc."}
		;;
esac

EXTRAVERSION="${PSUBVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}"
KERNEL_CONFIG="${SOURCEDIR}/${PNAME}/config-${PVER}-${BRANCH}-${PBUILD}-${ARCH}"

# special vars for mage file only
KPVER="${PVER}"
KPBUILD="${PBUILD}"
KBRANCH="${BRANCH}"
SPECIAL_VARS="${SPECIAL_VARS} KPVER KPBUILD KBRANCH USE_KERNEL_SYMLINKS"

# dummy function to apply kernel patches
kernel_apply_patches()
{
	return 0
}

kernel_src_prepare()
{
	munpack ${SRCFILE} || die
	mv ${BUILDDIR}/linux-${TARBALLPVER} ${SRCDIR} || die

	# fix permissions
	chown -R 0:0 ${SRCDIR} || die
	chmod -R a+r-w+X,u+w ${SRCDIR} || die

	cd ${SRCDIR}
	kernel_apply_patches || die

	# fixes INSTALL_PATH to /boot and EXTRAVERSION
	sed -i -e 's:#export\tINSTALL_PATH:export\tINSTALL_PATH:' \
		-e "s:^\(EXTRAVERSION =\).*:\1 ${EXTRAVERSION}:" Makefile || die

	# fix sublevel version with 3.x kernels and higher
	local kver=$(echo ${PVER} | sed "s:\.::g")
	if [[ ${PVER%%.*} -gt 2 ]]
	then
		local sublevel="$(echo ${PVER} | cut -d. -f3)"
		sed -i "s:^\(SUBLEVEL =\).*:\1 ${sublevel}:" Makefile || die
	fi
}

kernel_src_compile()
{
	cd ${SRCDIR}

	make mrproper || die

	if [[ ${KERNEL_TYPE} = sources ]] || [[ ${KERNEL_TYPE} = image ]]
	then
		# inject our kernel config
		cp ${KERNEL_CONFIG} ${SRCDIR}/.config || die
		make ARCH=${ARCH/i*86/x86} oldconfig || die
	fi

	case ${KERNEL_TYPE} in
		image)
			mmake ARCH=${ARCH/i*86/x86} || die
			;;

		headers)
			make ARCH=${ARCH/i*86/x86} headers_check || die
			;;

		sources)
			make clean || die

			# needed to compile other programs like iptables
			make ARCH=${ARCH/i*86/x86} prepare || die
			# needed to cover >=2.6.14 builds
			# but deprecated with >=2.6.21, prepare cover all targets there
			local kver=$(echo ${PVER} | sed "s:\.::g")
			# honor >=3.0.x; add one zero
			if [[ ${PVER%%.*} -gt 2 ]]
			then
				kver="${kver}0"
			fi
			if [[ ${kver} < 2621 ]]
			then
				make ARCH=${ARCH/i*86/x86} prepare-all || die
			fi
			make ARCH=${ARCH/i*86/x86} scripts || die

			# at least alsa-drivers needs this one ...
			touch include/linux/autoconf.h || die

			# compat symlink for 3.7.x new version.h location until everything is fixed
			;;
	esac
}

kernel_image_src_install()
{
	cd ${SRCDIR}

	# needed directories
	minstalldir /boot || die

	# install modules
	make ARCH=${ARCH/i*86/x86} INSTALL_MOD_PATH=${BINDIR}/usr modules_install || die

	# install kernelimage
	if [[ -z ${KERNEL_IMAGE_PATH} ]]
	then
		local my_arch="${ARCH}"
		[[ ${my_arch} = i*86 ]] && my_arch=i386
		minstallfile arch/${my_arch}/boot/bzImage \
			/boot/kernel-${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION} \
			|| die
	else
		minstallfile ${KERNEL_IMAGE_PATH} \
			/boot/kernel-${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION} \
			|| die
	fi

	# install System.map
	minstallfile System.map \
		/boot/System.map-${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION} \
		|| die

	# install Module.symvers in boot and /usr/src
	minstallfile Module.symvers \
		/boot/Module.symvers-${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION} \
		|| die
	minstalldir /usr/src/linux-${PVER}-${BRANCH}-${PBUILD} || die
	minstallfile Module.symvers \
		/usr/src/linux-${PVER}-${BRANCH}-${PBUILD} \
		|| die

	if [[ ${INCLUDE_KERNELVERSION_FILE} = true ]]
	then
		MCONFIG=/boot/kernelversion
		# install kernel description
		mclearconfig || die
		maddconfig "KRNVER=${BRANCH}-${PVER}-${ARCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}" || die
		maddconfig "KRNLIB=${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}" || die
		maddconfig "KRNIMG=kernel-${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}" || die
		maddconfig "KRNINITRD=" || die
	fi

	# install kernel-config from srcdir
	minstallfile .config \
		/boot/config-${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION} \
		|| die

	# fix build symlink
	if [ -L ${BINDIR}/usr/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/build ]
	then
		echo "fixing build symlink"
		rm ${BINDIR}/usr/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/build || die
		mlink /usr/src/linux-${PVER}-${BRANCH}-${PBUILD} \
			/usr/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/build \
			|| die
	fi

	# and fixing source symlink
	if [ -L ${BINDIR}/usr/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/source ]
	then
		echo "fixing source symlink"
		rm ${BINDIR}/usr/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/source || die
		mlink /usr/src/linux-${PVER}-${BRANCH}-${PBUILD} \
			/usr/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/source \
			|| die
	fi

	# remove firmware bits if $LINUX_FIRMWARE was set
	if [[ ! -z ${LINUX_FIRMWARE} ]] && [[ ${LINUX_FIRMWARE} != internal ]]
	then
		if [[ -d ${BINDIR}/usr/lib/firmware ]]
		then
			rm -rv ${BINDIR}/usr/lib/firmware
		fi
	fi

	# compress modules if COMPRESS_MODULES_CMD was set
	if [[ ! -z ${COMPRESS_MODULES_CMD} ]]
	then
		# compress all kernel modules
		find ${BINDIR} -name \*.ko | xargs ${COMPRESS_MODULES_CMD} || die
	fi
}

kernel_headers_src_install()
{
	cd ${SRCDIR}
	make ARCH=${ARCH/i*86/x86} INSTALL_HDR_PATH=${BINDIR}/usr headers_install || die

	# clean-up unnecessary files
	find ${BINDIR} -name .install -or -name ..install.cmd | xargs --no-run-if-empty rm -f
}

kernel_sources_src_install()
{
	cd ${BUILDDIR}

	echo "Creating linux-${PVER}-${BRANCH}-${PBUILD} sources tarball ... "
	tar cvjf ${BUILDDIR}/linux-${PVER}-${BRANCH}-${PBUILD}.tar.bz2 $(basename ${SRCDIR}) || die

	echo "Moving linux-${PVER}-${BRANCH}-${PBUILD} tarball to \${BINDIR}/usr/src ... "
	minstalldir /usr/src || die
	mv ${BUILDDIR}/linux-${PVER}-${BRANCH}-${PBUILD}.tar.bz2 ${BINDIR}/usr/src || die
}

# installs module-sources path/to/SRCDIR to MODDIR/MODNAME
# kernel_external_modules_install path/to/SRCDIR DESTDIRNAME
kernel_external_modules_install()
{
	cd ${BUILDDIR}

	local modsrc="$1"
	local moddest="$2"
	local moddir="${BUILDDIR}/kernel-modules-${PVER}-${BRANCH}-${PBUILD}"

	echo "Installing ${modsrc} to ${moddir}/${moddest} ..."
	install -d ${moddir} || die
	mv ${modsrc} ${moddir}/${moddest} || die
}

kernel_external_modules_tarball()
{
	cd ${BUILDDIR}

	echo "Creating kernel-modules-${PVER}-${BRANCH}-${PBUILD} sources tarball ... "
	tar cvjf ${BUILDDIR}/kernel-modules-${PVER}-${BRANCH}-${PBUILD}.tar.bz2 \
		kernel-modules-${PVER}-${BRANCH}-${PBUILD} || die

	echo "Moving kernel-modules-${PVER}-${BRANCH}-${PBUILD} tarball to \${BINDIR}/usr/src ... "
	minstalldir /usr/src || die
	mv ${BUILDDIR}/kernel-modules-${PVER}-${BRANCH}-${PBUILD}.tar.bz2 ${BINDIR}/usr/src || die
}

kernel_src_install()
{
	case ${KERNEL_TYPE} in
		image)
			kernel_image_src_install || die
			;;

		headers)
			kernel_headers_src_install || die
			;;

		sources)
			kernel_sources_src_install || die
			;;
	esac
}

kernel_major_version()
{
	local ksrc="$@"
	local kv

	if [[ -z ${ksrc} ]]
	then
		kv="$(uname -r|cut -d. -f1-2)"
	else
		local version
		local patchlevel

		# get version from makefile
		version=$(grep "^VERSION[[:space:]]*=[[:space:]]*[[:digit:]]" ${ksrc}/Makefile | sed "s/^.*=[[:space:]]*\([[:digit:]]\+\)/\1/g")
		# get patchlevel from makefile
		patchlevel=$(grep "^PATCHLEVEL[[:space:]]*=[[:space:]]*[[:digit:]]" ${ksrc}/Makefile | sed "s/^.*=[[:space:]]*\([[:digit:]]\+\)/\1/g")
		# kernelversion
		kv="${version}.${patchlevel}"
	fi

	echo "${kv}"
}

mod_suffix()
{
	local ksrc="$@"
	local mod_suffix
	local kmv

	kmv=$(kernel_major_version ${ksrc})
	if [[ ${kmv//.} -ge 26 ]]
	then
		mod_suffix="ko"
	else
		mod_suffix="o"
	fi

	echo ${mod_suffix}
}

kernel_image_preinstall()
{
	if [[ -z ${MROOT} ]] || [[ ${MROOT} = / ]]
	then
		mount /boot &> /dev/null
	fi
}

kernel_image_preremove()
{
	if [[ -z ${MROOT} ]] || [[ ${MROOT} = / ]]
	then
		mount /boot &> /dev/null

		# remove old image entry from grub
		new-kernel-pkg -v --rminitrd --rmmoddep --remove ${KPVER}-${KBRANCH}-${KPBUILD}
	fi
}

kernel_image_postinstall()
{
	[ ! -d ${MROOT}/sys ] && install -d ${MROOT}/sys

	# fixes a small glitch in <=mage-0.3.6-r15 with symlinks
	[ -f ${MROOT}/usr/src/linux-${KPVER}-${KBRANCH}-${KPBUILD} ] && \
		rm ${MROOT}/usr/src/linux-${KPVER}-${KBRANCH}-${KPBUILD}

	[ -x ${MROOT}/sbin/depmod ] &&
		${MROOT}/sbin/depmod -ae \
			-F /boot/System.map-${KPVER}-${KBRANCH}-${KPBUILD} \
			${KPVER}-${KBRANCH}-${KPBUILD}

	# do not run this if ${MROOT} is set !
	if [[ -z ${MROOT} ]] || [[ ${MROOT} = / ]]
	then
		new-kernel-pkg -v --mkinitrd --make-default --install ${KPVER}-${KBRANCH}-${KPBUILD}
	fi

	if [[ ${USE_KERNEL_SYMLINKS} = true ]]
	then
		# symlink actual kernel to /boot/vmlinuz etc...
		ln -snf kernel-${KPVER}-${KBRANCH}-${KPBUILD} ${MROOT}/boot/vmlinuz
		ln -snf System.map-${KPVER}-${KBRANCH}-${KPBUILD} ${MROOT}/boot/System.map
		ln -snf config-${KPVER}-${KBRANCH}-${KPBUILD} ${MROOT}/boot/config
		[[ -f ${MROOT}/boot/initrd-${KPVER}-${KBRANCH}-${KPBUILD}.img ]] &&
			ln -snf initrd-${KPVER}-${KBRANCH}-${KPBUILD}.img ${MROOT}/boot/initrd
	fi
}

kernel_sources_postinstall()
{
	# check for linux-VERSION/include as the kernel-image installs
	# the file Modules.symver in the linux-VERSION directory
	if mqueryfeature "kernelsrcunpack" &&
		[ ! -d ${MROOT}/usr/src/linux-${KPVER}-${KBRANCH}-${KPBUILD}/include ]
	then
		echo "Unpacking linux-${KPVER}-${KBRANCH}-${KPBUILD} source tarball ... "
		tar xvjf ${MROOT}/usr/src/linux-${KPVER}-${KBRANCH}-${KPBUILD}.tar.bz2 -C ${MROOT}/usr/src
	fi

	if mqueryfeature "kernelsrcunpack" &&
		[ ! -d ${MROOT}/usr/src/kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD} ] &&
		[ -f ${MROOT}/usr/src/kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD}.tar.bz2 ]
	then
		echo "Unpacking kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD} source tarball ... "
		tar xvjf ${MROOT}/usr/src/kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD}.tar.bz2 -C ${MROOT}/usr/src
	fi

	# create linux symlink
	if mqueryfeature "linuxsymlink"
	then
		echo "Creating linux -> linux-${KPVER}-${KBRANCH}-${KPBUILD} symlink ... "
		[ ! -d ${MROOT}/usr/src ] && install ${MROOT}/usr/src
		ln -snf ${MROOT}/usr/src/linux-${KPVER}-${KBRANCH}-${KPBUILD} \
			${MROOT}/usr/src/linux || die
	fi

	# create kernel-modules symlink
	if mqueryfeature "linuxsymlink" &&
		[ -d ${MROOT}/usr/src/kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD} ]
	then
		echo "Creating kernel-modules -> kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD} symlink ... "
		[ ! -d ${MROOT}/usr/src ] && install ${MROOT}/usr/src
		ln -snf ${MROOT}/usr/src/kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD} \
			${MROOT}/usr/src/kernel-modules || die
	fi
}

export_inherits kernel src_prepare src_compile src_install

# export pre/postinstall functions depending on KERNEL_TYPE
case ${KERNEL_TYPE} in
	image)
		export_inherits kernel_image preinstall preremove postinstall
		SPECIAL_FUNCTIONS="${SPECIAL_FUNCTIONS} kernel_image_preinstall kernel_image_preremove kernel_image_postinstall"
		;;
	sources)
		export_inherits kernel_sources postinstall
		SPECIAL_FUNCTIONS="${SPECIAL_FUNCTIONS} kernel_sources_postinstall"
		;;
esac
1	niro	9311	# kernel global smage functions
2			# $Id$
3
4			# needed extra vars:
5	niro	11369	# ${KERNEL_TYPE}: needed, 'sources', 'headers' or 'image'
6			# ${BRANCH}: needed, style branch of the kernel
7			# ${KERNEL_CONFIG}: optional, needed if you want to override the default
8			# searchpath ${SOURCEDIR}/${PNAME}/config-${PVER}-${BRANCH}-${PBUILD}
9	niro	9311	#
10	niro	11369	# ${PSUBVER}: optional, only needed for 2.6.x.x naming scheme
11			# ${EXTRAVERSION}: optinal, extra version for the kernel name
12			# default setting is ${PSUBVER}-${BRANCH}-${PBUILD}
13			# ${KERNEL_IMAGE_PATH}: override the default KERNEL_IMAGE_PATH (to build xen images for e.g.)
14			# ${COMPRESS_MODULES}: compresses the kernel modules with given compressor (gzip\|bzip2\|xz)
15			# ${LINUX_FIRMWARE}: remove included firmware bits if requested
16			# set the version here like USE_LINUX_FIRMARE="20110605"
17			# version "internal" keeps the bits too
18			#
19	niro	18719	# ${INCLUDE_KERNELVERSION_FILE}: creates a /boot/kernelversion file (deprecated)
20	niro	18720	# ${USE_KERNEL_SYMLINKS}: creates symlinks to unversioned kernel image files
21			# - kernel-x.x.x.x -> /boot/vmlinuz
22			# - initrd-x.x.x.x -> /boot/initrd
23			# - config-x.x.x.x -> /boot/config
24			# - System.map-x.x.x.x -> /boot/System.map
25	niro	9311
26			sminclude mtools
27
28			# remove me when all distris support this:
29			if [[ ${USE_KERNEL_ARCH_EXTENSION} = true ]]
30			then
31			KERNEL_ARCH_EXTENSION="-${ARCH}"
32			else
33			KERNEL_ARCH_EXTENSION=""
34			fi
35
36	niro	9466	if [[ ! -z ${COMPRESS_MODULES} ]]
37			then
38			case ${COMPRESS_MODULES} in
39			gzip)
40			COMPRESS_MODULES_CMD="gzip -9v"
41			SDEPEND="${SDEPEND}
42			>= app-arch/gzip-1.4"
43			;;
44			bzip2)
45			COMPRESS_MODULES_CMD="bzip2 -9v"
46			SDEPEND="${SDEPEND}
47			>= app-arch/bzip2-1.0.6"
48			;;
49			xz)
50			COMPRESS_MODULES_CMD="xz -9v"
51			SDEPEND="${SDEPEND}
52			>= app-arch/xz-5"
53			;;
54			none)
55			echo "Disabled compressed kernel-modules!"
56			COMPRESS_MODULES_CMD=""
57			;;
58			*) die "Unkown compression format '${COMPRESS_MODULES}'" ;;
59			esac
60			fi
61
62	niro	9311	# some sane defaults
63	niro	9863	: ${PCAT="sys-kernel"}
64	niro	9311	: ${HOMEPAGE="http://magellan-linux.de/"}
65	niro	9743	: ${TARBALLPVER="${PVER}"}
66			: ${SRCFILE="linux-${TARBALLPVER}.tar.bz2"}
67	niro	9311	: ${SRCDIR="${BUILDDIR}/linux-${PVER}-${BRANCH}-${PBUILD}"}
68
69	niro	9740	if [[ -z ${SRC_URI[*]} ]]
70			then
71			SRC_URI=(
72			http://www.kernel.org/pub/linux/kernel/v$(echo ${PVER} \| cut -d. -f1).x/${SRCFILE}
73			http://ftp.uni-erlangen.de/pub/Linux/MIRROR.kernel/v$(echo ${PVER} \| cut -d. -f1).x/${SRCFILE}
74			mirror://kernel-${BRANCH}/${SRCFILE}
75			)
76			case ${KERNEL_TYPE} in
77			image\|sources)
78			SRC_URI=(
79			${SRC_URI[*]}
80			mirror://kernel-${BRANCH}/config-${PVER}-${BRANCH}-${PBUILD}-i686
81			mirror://kernel-${BRANCH}/config-${PVER}-${BRANCH}-${PBUILD}-x86_64
82			)
83			;;
84			esac
85			fi
86	niro	9311
87			case ${KERNEL_TYPE} in
88			image)
89			: ${PROVIDE="virtual/kernel"}
90	niro	10194	: ${DEPEND=">= virtual/module-tools
91	niro	9311	>= sys-fs/udev-115
92	niro	10194	>= virtual/initramfs-tools
93	niro	9311	>= virtual/initscripts"}
94	niro	11369	if [[ ! -z ${LINUX_FIRMWARE} ]] && [[ ${LINUX_FIRMWARE} != internal ]]
95			then
96			DEPEND="${DEPEND}
97			>= sys-kernel/linux-firmware-${LINUX_FIRMWARE}"
98			fi
99	niro	18718	SDEPEND="${SDEPEND}
100			>= sys-dev/bc-1.06"
101	niro	9745	: ${DESCRIPTION="Kernel image of the '${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}' kernel branch."}
102	niro	9311	;;
103
104			sources)
105			: ${PROVIDE="virtual/kernel-sources"}
106	niro	9745	: ${DESCRIPTION="Kernel sources of the '${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}' kernel branch."}
107	niro	9311	;;
108
109			headers)
110			: ${PROVIDE="virtual/kernel-headers"}
111			: ${DESCRIPTION="Sanitized kernel headers for libc."}
112			;;
113			esac
114
115			EXTRAVERSION="${PSUBVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}"
116			KERNEL_CONFIG="${SOURCEDIR}/${PNAME}/config-${PVER}-${BRANCH}-${PBUILD}-${ARCH}"
117
118			# special vars for mage file only
119			KPVER="${PVER}"
120			KPBUILD="${PBUILD}"
121			KBRANCH="${BRANCH}"
122	niro	18720	SPECIAL_VARS="${SPECIAL_VARS} KPVER KPBUILD KBRANCH USE_KERNEL_SYMLINKS"
123	niro	9311
124	niro	18717	# dummy function to apply kernel patches
125			kernel_apply_patches()
126			{
127			return 0
128			}
129
130	niro	9311	kernel_src_prepare()
131			{
132			munpack ${SRCFILE} \|\| die
133	niro	9743	mv ${BUILDDIR}/linux-${TARBALLPVER} ${SRCDIR} \|\| die
134	niro	9311
135			# fix permissions
136			chown -R 0:0 ${SRCDIR} \|\| die
137			chmod -R a+r-w+X,u+w ${SRCDIR} \|\| die
138
139			cd ${SRCDIR}
140	niro	18717	kernel_apply_patches \|\| die
141	niro	9311
142			# fixes INSTALL_PATH to /boot and EXTRAVERSION
143			sed -i -e 's:#export\tINSTALL_PATH:export\tINSTALL_PATH:' \
144			-e "s:^\(EXTRAVERSION =\).*:\1 ${EXTRAVERSION}:" Makefile \|\| die
145	niro	9463
146			# fix sublevel version with 3.x kernels and higher
147			local kver=$(echo ${PVER} \| sed "s:\.::g")
148			if [[ ${PVER%%.*} -gt 2 ]]
149			then
150			local sublevel="$(echo ${PVER} \| cut -d. -f3)"
151	niro	13438	sed -i "s:^\(SUBLEVEL =\).*:\1 ${sublevel}:" Makefile \|\| die
152	niro	9463	fi
153	niro	9311	}
154
155			kernel_src_compile()
156			{
157			cd ${SRCDIR}
158
159			make mrproper \|\| die
160
161			if [[ ${KERNEL_TYPE} = sources ]] \|\| [[ ${KERNEL_TYPE} = image ]]
162			then
163			# inject our kernel config
164			cp ${KERNEL_CONFIG} ${SRCDIR}/.config \|\| die
165			make ARCH=${ARCH/i*86/x86} oldconfig \|\| die
166			fi
167
168			case ${KERNEL_TYPE} in
169			image)
170			mmake ARCH=${ARCH/i*86/x86} \|\| die
171			;;
172
173			headers)
174			make ARCH=${ARCH/i*86/x86} headers_check \|\| die
175			;;
176
177			sources)
178			make clean \|\| die
179
180			# needed to compile other programs like iptables
181			make ARCH=${ARCH/i*86/x86} prepare \|\| die
182			# needed to cover >=2.6.14 builds
183			# but deprecated with >=2.6.21, prepare cover all targets there
184			local kver=$(echo ${PVER} \| sed "s:\.::g")
185			# honor >=3.0.x; add one zero
186			if [[ ${PVER%%.*} -gt 2 ]]
187			then
188			kver="${kver}0"
189			fi
190			if [[ ${kver} < 2621 ]]
191			then
192			make ARCH=${ARCH/i*86/x86} prepare-all \|\| die
193			fi
194			make ARCH=${ARCH/i*86/x86} scripts \|\| die
195
196			# at least alsa-drivers needs this one ...
197			touch include/linux/autoconf.h \|\| die
198	niro	19654
199			# compat symlink for 3.7.x new version.h location until everything is fixed
200	niro	9311	;;
201			esac
202			}
203
204			kernel_image_src_install()
205			{
206			cd ${SRCDIR}
207
208			# needed directories
209			minstalldir /boot \|\| die
210
211			# install modules
212	niro	12741	make ARCH=${ARCH/i*86/x86} INSTALL_MOD_PATH=${BINDIR}/usr modules_install \|\| die
213	niro	9311
214			# install kernelimage
215			if [[ -z ${KERNEL_IMAGE_PATH} ]]
216			then
217			local my_arch="${ARCH}"
218			[[ ${my_arch} = i*86 ]] && my_arch=i386
219			minstallfile arch/${my_arch}/boot/bzImage \
220			/boot/kernel-${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION} \
221			\|\| die
222			else
223			minstallfile ${KERNEL_IMAGE_PATH} \
224			/boot/kernel-${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION} \
225			\|\| die
226			fi
227
228			# install System.map
229			minstallfile System.map \
230			/boot/System.map-${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION} \
231			\|\| die
232
233			# install Module.symvers in boot and /usr/src
234			minstallfile Module.symvers \
235			/boot/Module.symvers-${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION} \
236			\|\| die
237			minstalldir /usr/src/linux-${PVER}-${BRANCH}-${PBUILD} \|\| die
238			minstallfile Module.symvers \
239			/usr/src/linux-${PVER}-${BRANCH}-${PBUILD} \
240			\|\| die
241
242	niro	18719	if [[ ${INCLUDE_KERNELVERSION_FILE} = true ]]
243			then
244			MCONFIG=/boot/kernelversion
245			# install kernel description
246			mclearconfig \|\| die
247			maddconfig "KRNVER=${BRANCH}-${PVER}-${ARCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}" \|\| die
248			maddconfig "KRNLIB=${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}" \|\| die
249			maddconfig "KRNIMG=kernel-${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}" \|\| die
250			maddconfig "KRNINITRD=" \|\| die
251			fi
252	niro	9311
253			# install kernel-config from srcdir
254			minstallfile .config \
255			/boot/config-${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION} \
256			\|\| die
257
258			# fix build symlink
259	niro	12741	if [ -L ${BINDIR}/usr/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/build ]
260	niro	9311	then
261			echo "fixing build symlink"
262	niro	12741	rm ${BINDIR}/usr/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/build \|\| die
263	niro	9311	mlink /usr/src/linux-${PVER}-${BRANCH}-${PBUILD} \
264	niro	12741	/usr/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/build \
265	niro	9311	\|\| die
266			fi
267
268			# and fixing source symlink
269	niro	12741	if [ -L ${BINDIR}/usr/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/source ]
270	niro	9311	then
271			echo "fixing source symlink"
272	niro	12741	rm ${BINDIR}/usr/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/source \|\| die
273	niro	9311	mlink /usr/src/linux-${PVER}-${BRANCH}-${PBUILD} \
274	niro	12741	/usr/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/source \
275	niro	9311	\|\| die
276			fi
277	niro	9466
278			# remove firmware bits if $LINUX_FIRMWARE was set
279			if [[ ! -z ${LINUX_FIRMWARE} ]] && [[ ${LINUX_FIRMWARE} != internal ]]
280			then
281	niro	12741	if [[ -d ${BINDIR}/usr/lib/firmware ]]
282	niro	9466	then
283	niro	12741	rm -rv ${BINDIR}/usr/lib/firmware
284	niro	9466	fi
285			fi
286
287			# compress modules if COMPRESS_MODULES_CMD was set
288			if [[ ! -z ${COMPRESS_MODULES_CMD} ]]
289			then
290			# compress all kernel modules
291			find ${BINDIR} -name \*.ko \| xargs ${COMPRESS_MODULES_CMD} \|\| die
292			fi
293	niro	9311	}
294
295			kernel_headers_src_install()
296			{
297			cd ${SRCDIR}
298			make ARCH=${ARCH/i*86/x86} INSTALL_HDR_PATH=${BINDIR}/usr headers_install \|\| die
299	niro	9746
300			# clean-up unnecessary files
301			find ${BINDIR} -name .install -or -name ..install.cmd \| xargs --no-run-if-empty rm -f
302	niro	9311	}
303
304			kernel_sources_src_install()
305			{
306			cd ${BUILDDIR}
307
308			echo "Creating linux-${PVER}-${BRANCH}-${PBUILD} sources tarball ... "
309			tar cvjf ${BUILDDIR}/linux-${PVER}-${BRANCH}-${PBUILD}.tar.bz2 $(basename ${SRCDIR}) \|\| die
310
311			echo "Moving linux-${PVER}-${BRANCH}-${PBUILD} tarball to \${BINDIR}/usr/src ... "
312			minstalldir /usr/src \|\| die
313			mv ${BUILDDIR}/linux-${PVER}-${BRANCH}-${PBUILD}.tar.bz2 ${BINDIR}/usr/src \|\| die
314			}
315
316			# installs module-sources path/to/SRCDIR to MODDIR/MODNAME
317			# kernel_external_modules_install path/to/SRCDIR DESTDIRNAME
318			kernel_external_modules_install()
319			{
320			cd ${BUILDDIR}
321
322			local modsrc="$1"
323			local moddest="$2"
324			local moddir="${BUILDDIR}/kernel-modules-${PVER}-${BRANCH}-${PBUILD}"
325
326			echo "Installing ${modsrc} to ${moddir}/${moddest} ..."
327			install -d ${moddir} \|\| die
328			mv ${modsrc} ${moddir}/${moddest} \|\| die
329			}
330
331			kernel_external_modules_tarball()
332			{
333			cd ${BUILDDIR}
334
335			echo "Creating kernel-modules-${PVER}-${BRANCH}-${PBUILD} sources tarball ... "
336			tar cvjf ${BUILDDIR}/kernel-modules-${PVER}-${BRANCH}-${PBUILD}.tar.bz2 \
337			kernel-modules-${PVER}-${BRANCH}-${PBUILD} \|\| die
338
339			echo "Moving kernel-modules-${PVER}-${BRANCH}-${PBUILD} tarball to \${BINDIR}/usr/src ... "
340			minstalldir /usr/src \|\| die
341			mv ${BUILDDIR}/kernel-modules-${PVER}-${BRANCH}-${PBUILD}.tar.bz2 ${BINDIR}/usr/src \|\| die
342			}
343
344			kernel_src_install()
345			{
346			case ${KERNEL_TYPE} in
347			image)
348			kernel_image_src_install \|\| die
349			;;
350
351			headers)
352			kernel_headers_src_install \|\| die
353			;;
354
355			sources)
356			kernel_sources_src_install \|\| die
357			;;
358			esac
359			}
360
361			kernel_major_version()
362			{
363			local ksrc="$@"
364			local kv
365
366			if [[ -z ${ksrc} ]]
367			then
368			kv="$(uname -r\|cut -d. -f1-2)"
369			else
370			local version
371			local patchlevel
372
373			# get version from makefile
374			version=$(grep "^VERSION[[:space:]]=[[:space:]][[:digit:]]" ${ksrc}/Makefile \| sed "s/^.=[[:space:]]\([[:digit:]]\+\)/\1/g")
375			# get patchlevel from makefile
376			patchlevel=$(grep "^PATCHLEVEL[[:space:]]=[[:space:]][[:digit:]]" ${ksrc}/Makefile \| sed "s/^.=[[:space:]]\([[:digit:]]\+\)/\1/g")
377			# kernelversion
378			kv="${version}.${patchlevel}"
379			fi
380
381			echo "${kv}"
382			}
383
384			mod_suffix()
385			{
386			local ksrc="$@"
387			local mod_suffix
388			local kmv
389
390			kmv=$(kernel_major_version ${ksrc})
391			if [[ ${kmv//.} -ge 26 ]]
392			then
393			mod_suffix="ko"
394			else
395			mod_suffix="o"
396			fi
397
398			echo ${mod_suffix}
399			}
400
401			kernel_image_preinstall()
402			{
403			if [[ -z ${MROOT} ]] \|\| [[ ${MROOT} = / ]]
404			then
405			mount /boot &> /dev/null
406			fi
407			}
408
409			kernel_image_preremove()
410			{
411			if [[ -z ${MROOT} ]] \|\| [[ ${MROOT} = / ]]
412			then
413			mount /boot &> /dev/null
414
415			# remove old image entry from grub
416	niro	13880	new-kernel-pkg -v --rminitrd --rmmoddep --remove ${KPVER}-${KBRANCH}-${KPBUILD}
417	niro	9311	fi
418			}
419
420			kernel_image_postinstall()
421			{
422			[ ! -d ${MROOT}/sys ] && install -d ${MROOT}/sys
423
424			# fixes a small glitch in <=mage-0.3.6-r15 with symlinks
425			[ -f ${MROOT}/usr/src/linux-${KPVER}-${KBRANCH}-${KPBUILD} ] && \
426			rm ${MROOT}/usr/src/linux-${KPVER}-${KBRANCH}-${KPBUILD}
427
428			[ -x ${MROOT}/sbin/depmod ] &&
429			${MROOT}/sbin/depmod -ae \
430			-F /boot/System.map-${KPVER}-${KBRANCH}-${KPBUILD} \
431			${KPVER}-${KBRANCH}-${KPBUILD}
432
433			# do not run this if ${MROOT} is set !
434			if [[ -z ${MROOT} ]] \|\| [[ ${MROOT} = / ]]
435			then
436			new-kernel-pkg -v --mkinitrd --make-default --install ${KPVER}-${KBRANCH}-${KPBUILD}
437			fi
438
439	niro	18720	if [[ ${USE_KERNEL_SYMLINKS} = true ]]
440			then
441			# symlink actual kernel to /boot/vmlinuz etc...
442			ln -snf kernel-${KPVER}-${KBRANCH}-${KPBUILD} ${MROOT}/boot/vmlinuz
443			ln -snf System.map-${KPVER}-${KBRANCH}-${KPBUILD} ${MROOT}/boot/System.map
444			ln -snf config-${KPVER}-${KBRANCH}-${KPBUILD} ${MROOT}/boot/config
445			[[ -f ${MROOT}/boot/initrd-${KPVER}-${KBRANCH}-${KPBUILD}.img ]] &&
446			ln -snf initrd-${KPVER}-${KBRANCH}-${KPBUILD}.img ${MROOT}/boot/initrd
447			fi
448	niro	9311	}
449
450			kernel_sources_postinstall()
451			{
452			# check for linux-VERSION/include as the kernel-image installs
453			# the file Modules.symver in the linux-VERSION directory
454	niro	11362	if mqueryfeature "kernelsrcunpack" &&
455			[ ! -d ${MROOT}/usr/src/linux-${KPVER}-${KBRANCH}-${KPBUILD}/include ]
456	niro	9311	then
457			echo "Unpacking linux-${KPVER}-${KBRANCH}-${KPBUILD} source tarball ... "
458			tar xvjf ${MROOT}/usr/src/linux-${KPVER}-${KBRANCH}-${KPBUILD}.tar.bz2 -C ${MROOT}/usr/src
459			fi
460
461	niro	11362	if mqueryfeature "kernelsrcunpack" &&
462			[ ! -d ${MROOT}/usr/src/kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD} ] &&
463	niro	9311	[ -f ${MROOT}/usr/src/kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD}.tar.bz2 ]
464			then
465			echo "Unpacking kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD} source tarball ... "
466			tar xvjf ${MROOT}/usr/src/kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD}.tar.bz2 -C ${MROOT}/usr/src
467			fi
468
469	niro	11362	# create linux symlink
470			if mqueryfeature "linuxsymlink"
471	niro	9311	then
472			echo "Creating linux -> linux-${KPVER}-${KBRANCH}-${KPBUILD} symlink ... "
473			[ ! -d ${MROOT}/usr/src ] && install ${MROOT}/usr/src
474			ln -snf ${MROOT}/usr/src/linux-${KPVER}-${KBRANCH}-${KPBUILD} \
475			${MROOT}/usr/src/linux \|\| die
476			fi
477
478	niro	11362	# create kernel-modules symlink
479			if mqueryfeature "linuxsymlink" &&
480	niro	9311	[ -d ${MROOT}/usr/src/kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD} ]
481			then
482			echo "Creating kernel-modules -> kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD} symlink ... "
483			[ ! -d ${MROOT}/usr/src ] && install ${MROOT}/usr/src
484			ln -snf ${MROOT}/usr/src/kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD} \
485			${MROOT}/usr/src/kernel-modules \|\| die
486			fi
487			}
488
489			export_inherits kernel src_prepare src_compile src_install
490
491			# export pre/postinstall functions depending on KERNEL_TYPE
492			case ${KERNEL_TYPE} in
493			image)
494	niro	18721	export_inherits kernel_image preinstall preremove postinstall
495			SPECIAL_FUNCTIONS="${SPECIAL_FUNCTIONS} kernel_image_preinstall kernel_image_preremove kernel_image_postinstall"
496	niro	9311	;;
497			sources)
498			export_inherits kernel_sources postinstall
499			SPECIAL_FUNCTIONS="${SPECIAL_FUNCTIONS} kernel_sources_postinstall"
500			;;
501			esac