R11-stable/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	# kernel global smage functions
2	# $Id$
3
4	# needed extra vars:
5	# ${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	#
10	# ${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
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	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	# some sane defaults
57	: ${PCAT="sys-kernel"}
58	: ${HOMEPAGE="http://magellan-linux.de/"}
59	: ${TARBALLPVER="${PVER}"}
60	: ${SRCFILE="linux-${TARBALLPVER}.tar.bz2"}
61	: ${SRCDIR="${BUILDDIR}/linux-${PVER}-${BRANCH}-${PBUILD}"}
62
63	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
81	case ${KERNEL_TYPE} in
82	image)
83	: ${PROVIDE="virtual/kernel"}
84	: ${DEPEND=">= virtual/module-tools
85	>= sys-fs/udev-115
86	>= virtual/initramfs-tools
87	>= virtual/initscripts"}
88	if [[ ! -z ${LINUX_FIRMWARE} ]] && [[ ${LINUX_FIRMWARE} != internal ]]
89	then
90	DEPEND="${DEPEND}
91	>= sys-kernel/linux-firmware-${LINUX_FIRMWARE}"
92	fi
93	SDEPEND="${SDEPEND}
94	>= sys-dev/bc-1.06"
95	: ${DESCRIPTION="Kernel image of the '${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}' kernel branch."}
96	;;
97
98	sources)
99	: ${PROVIDE="virtual/kernel-sources"}
100	: ${DESCRIPTION="Kernel sources of the '${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}' kernel branch."}
101	;;
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	# dummy function to apply kernel patches
119	kernel_apply_patches()
120	{
121	return 0
122	}
123
124	kernel_src_prepare()
125	{
126	munpack ${SRCFILE} \|\| die
127	mv ${BUILDDIR}/linux-${TARBALLPVER} ${SRCDIR} \|\| die
128
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	kernel_apply_patches \|\| die
135
136	# fixes INSTALL_PATH to /boot and EXTRAVERSION
137	sed -i -e 's:#export\tINSTALL_PATH:export\tINSTALL_PATH:' \
138	-e "s:^\(EXTRAVERSION =\).*:\1 ${EXTRAVERSION}:" Makefile \|\| die
139
140	# fix sublevel version with 3.x kernels and higher
141	local kver=$(echo ${PVER} \| sed "s:\.::g")
142	if [[ ${PVER%%.*} -gt 2 ]]
143	then
144	local sublevel="$(echo ${PVER} \| cut -d. -f3)"
145	sed -i "s:^\(SUBLEVEL =\).*:\1 ${sublevel}:" Makefile \|\| die
146	fi
147	}
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 ${SRCDIR}
199
200	# needed directories
201	minstalldir /boot \|\| die
202
203	# install modules
204	make ARCH=${ARCH/i*86/x86} INSTALL_MOD_PATH=${BINDIR}/usr modules_install \|\| die
205
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	if [ -L ${BINDIR}/usr/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/build ]
249	then
250	echo "fixing build symlink"
251	rm ${BINDIR}/usr/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/build \|\| die
252	mlink /usr/src/linux-${PVER}-${BRANCH}-${PBUILD} \
253	/usr/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/build \
254	\|\| die
255	fi
256
257	# and fixing source symlink
258	if [ -L ${BINDIR}/usr/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/source ]
259	then
260	echo "fixing source symlink"
261	rm ${BINDIR}/usr/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/source \|\| die
262	mlink /usr/src/linux-${PVER}-${BRANCH}-${PBUILD} \
263	/usr/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/source \
264	\|\| die
265	fi
266
267	# remove firmware bits if $LINUX_FIRMWARE was set
268	if [[ ! -z ${LINUX_FIRMWARE} ]] && [[ ${LINUX_FIRMWARE} != internal ]]
269	then
270	if [[ -d ${BINDIR}/usr/lib/firmware ]]
271	then
272	rm -rv ${BINDIR}/usr/lib/firmware
273	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	}
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
289	# clean-up unnecessary files
290	find ${BINDIR} -name .install -or -name ..install.cmd \| xargs --no-run-if-empty rm -f
291	}
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	new-kernel-pkg -v --rminitrd --rmmoddep --remove ${KPVER}-${KBRANCH}-${KPBUILD}
412	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	if mqueryfeature "kernelsrcunpack" &&
447	[ ! -d ${MROOT}/usr/src/linux-${KPVER}-${KBRANCH}-${KPBUILD}/include ]
448	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	if mqueryfeature "kernelsrcunpack" &&
454	[ ! -d ${MROOT}/usr/src/kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD} ] &&
455	[ -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 ${MROOT}/usr/src
459	fi
460
461	# create linux symlink
462	if mqueryfeature "linuxsymlink"
463	then
464	echo "Creating linux -> linux-${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	# create kernel-modules symlink
471	if mqueryfeature "linuxsymlink" &&
472	[ -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