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)

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

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