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
#

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"

# 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
			;;
	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

	# install kernel description
	echo "
KRNVER=${BRANCH}-${PVER}-${ARCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}
KRNLIB=${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}
KRNIMG=kernel-${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}
KRNINITRD=
" > ${BINDIR}/boot/kernelversion || die

	# 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
	fi
}

kernel_image_postremove()
{
	if [[ -z ${MROOT} ]] || [[ ${MROOT} = / ]]
	then
		# 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

	# 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
}

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