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    Contents of /branches/magellan-next/include/kernel.sminc

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    Revision 9466 - (show annotations) (download)
    Thu Dec 1 16:48:58 2011 UTC (12 years, 5 months ago) by niro
    File size: 13802 byte(s) 
    -added module compression support
    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
    16 sminclude mtools
    17
    18 # remove me when all distris support this:
    19 if [[ ${USE_KERNEL_ARCH_EXTENSION} = true ]]
    20 then
    21 KERNEL_ARCH_EXTENSION="-${ARCH}"
    22 else
    23 KERNEL_ARCH_EXTENSION=""
    24 fi
    25
    26 # remove included firmware bits if requested
    27 # set the version here like USE_LINUX_FIRMARE="20110605"
    28 # version "internal" keeps the bits too
    29 if [[ ! -z ${LINUX_FIRMWARE} ]] && [[ ${LINUX_FIRMWARE} != internal ]]
    30 then
    31 DEPEND="${DEPEND}
    32 >= sys-kernel/linux-firmware-${LINUX_FIRMWARE}"
    33 fi
    34
    35 if [[ ! -z ${COMPRESS_MODULES} ]]
    36 then
    37 case ${COMPRESS_MODULES} in
    38 gzip)
    39 COMPRESS_MODULES_CMD="gzip -9v"
    40 SDEPEND="${SDEPEND}
    41 >= app-arch/gzip-1.4"
    42 ;;
    43 bzip2)
    44 COMPRESS_MODULES_CMD="bzip2 -9v"
    45 SDEPEND="${SDEPEND}
    46 >= app-arch/bzip2-1.0.6"
    47 ;;
    48 xz)
    49 COMPRESS_MODULES_CMD="xz -9v"
    50 SDEPEND="${SDEPEND}
    51 >= app-arch/xz-5"
    52 ;;
    53 none)
    54 echo "Disabled compressed kernel-modules!"
    55 COMPRESS_MODULES_CMD=""
    56 ;;
    57 *) die "Unkown compression format '${COMPRESS_MODULES}'" ;;
    58 esac
    59 fi
    60
    61 # some sane defaults
    62 : ${PCATEGORIE="sys-kernel"}
    63 : ${HOMEPAGE="http://magellan-linux.de/"}
    64 : ${SRCFILE="linux-${PVER/${PSUBVER}/}.tar.bz2"}
    65 : ${SRCDIR="${BUILDDIR}/linux-${PVER}-${BRANCH}-${PBUILD}"}
    66 : ${TARBALLPVER="${PVER}"}
    67
    68 case ${KERNEL_TYPE} in
    69 image|sources)
    70 if [[ -z ${SRC_URI[*]} ]]
    71 then
    72 SRC_URI=(
    73 http://www.kernel.org/pub/linux/kernel/v$(echo ${PVER} | cut -d. -f1).x/${SRCFILE}
    74 http://ftp.uni-erlangen.de/pub/Linux/MIRROR.kernel/v$(echo ${PVER} | cut -d. -f1).x/${SRCFILE}
    75 mirror://kernel-${BRANCH}/${SRCFILE}
    76 mirror://kernel-${BRANCH}/config-${PVER}-${BRANCH}-${PBUILD}-i686
    77 mirror://kernel-${BRANCH}/config-${PVER}-${BRANCH}-${PBUILD}-x86_64
    78 )
    79 fi
    80 ;;
    81
    82 headers)
    83 if [[ -z ${SRC_URI[*]} ]]
    84 then
    85 SRC_URI=(
    86 http://www.kernel.org/pub/linux/kernel/v$(echo ${PVER} | cut -d. -f1-2)/${SRCFILE}
    87 http://ftp.uni-erlangen.de/pub/Linux/MIRROR.kernel/v$(echo ${PVER} | cut -d. -f1-2)/${SRCFILE}
    88 mirror://kernel-${BRANCH}/${SRCFILE}
    89 )
    90 fi
    91 ;;
    92 esac
    93
    94 case ${KERNEL_TYPE} in
    95 image)
    96 : ${PROVIDE="virtual/kernel"}
    97 : ${DEPEND=">= sys-apps/module-init-tools-3.2
    98 >= sys-fs/udev-115
    99 >= sys-apps/mkinitrd-5.0.8
    100 >= virtual/initscripts"}
    101 : ${DESCRIPTION="Kernel image of the '${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}' kernel."}
    102 ;;
    103
    104 sources)
    105 : ${PROVIDE="virtual/kernel-sources"}
    106 : ${DESCRIPTION="Kernel sources of the '${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}' kernel."}
    107 ;;
    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 SPECIAL_VARS="${SPECIAL_VARS} KPVER KPBUILD KBRANCH"
    123
    124 kernel_src_prepare()
    125 {
    126 munpack ${SRCFILE} || die
    127 mv ${BUILDDIR}/linux-${TARBALLPVER/${PSUBVER}/} ${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
    135 # fixes INSTALL_PATH to /boot and EXTRAVERSION
    136 sed -i -e 's:#export\tINSTALL_PATH:export\tINSTALL_PATH:' \
    137 -e "s:^\(EXTRAVERSION =\).*:\1 ${EXTRAVERSION}:" Makefile || die
    138
    139 # fix sublevel version with 3.x kernels and higher
    140 local kver=$(echo ${PVER} | sed "s:\.::g")
    141 if [[ ${PVER%%.*} -gt 2 ]]
    142 then
    143 local sublevel="$(echo ${PVER} | cut -d. -f3)"
    144 sed -i "s:^\(SUBLEVEL =\).*:\1 ${sublevel}:" Makefile || die
    145 fi
    146 }
    147
    148 kernel_src_compile()
    149 {
    150 cd ${SRCDIR}
    151
    152 make mrproper || die
    153
    154 if [[ ${KERNEL_TYPE} = sources ]] || [[ ${KERNEL_TYPE} = image ]]
    155 then
    156 # inject our kernel config
    157 cp ${KERNEL_CONFIG} ${SRCDIR}/.config || die
    158 make ARCH=${ARCH/i*86/x86} oldconfig || die
    159 fi
    160
    161 case ${KERNEL_TYPE} in
    162 image)
    163 mmake ARCH=${ARCH/i*86/x86} || die
    164 ;;
    165
    166 headers)
    167 make ARCH=${ARCH/i*86/x86} headers_check || die
    168 ;;
    169
    170 sources)
    171 make clean || die
    172
    173 # needed to compile other programs like iptables
    174 make ARCH=${ARCH/i*86/x86} prepare || die
    175 # needed to cover >=2.6.14 builds
    176 # but deprecated with >=2.6.21, prepare cover all targets there
    177 local kver=$(echo ${PVER} | sed "s:\.::g")
    178 # honor >=3.0.x; add one zero
    179 if [[ ${PVER%%.*} -gt 2 ]]
    180 then
    181 kver="${kver}0"
    182 fi
    183 if [[ ${kver} < 2621 ]]
    184 then
    185 make ARCH=${ARCH/i*86/x86} prepare-all || die
    186 fi
    187 make ARCH=${ARCH/i*86/x86} scripts || die
    188
    189 # at least alsa-drivers needs this one ...
    190 touch include/linux/autoconf.h || die
    191 ;;
    192 esac
    193 }
    194
    195 kernel_image_src_install()
    196 {
    197 cd ${SRCDIR}
    198
    199 # needed directories
    200 minstalldir /boot || die
    201
    202 # install modules
    203 make ARCH=${ARCH/i*86/x86} INSTALL_MOD_PATH=${BINDIR} modules_install || die
    204
    205 # install kernelimage
    206 if [[ -z ${KERNEL_IMAGE_PATH} ]]
    207 then
    208 local my_arch="${ARCH}"
    209 [[ ${my_arch} = i*86 ]] && my_arch=i386
    210 minstallfile arch/${my_arch}/boot/bzImage \
    211 /boot/kernel-${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION} \
    212 || die
    213 else
    214 minstallfile ${KERNEL_IMAGE_PATH} \
    215 /boot/kernel-${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION} \
    216 || die
    217 fi
    218
    219 # install System.map
    220 minstallfile System.map \
    221 /boot/System.map-${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION} \
    222 || die
    223
    224 # install Module.symvers in boot and /usr/src
    225 minstallfile Module.symvers \
    226 /boot/Module.symvers-${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION} \
    227 || die
    228 minstalldir /usr/src/linux-${PVER}-${BRANCH}-${PBUILD} || die
    229 minstallfile Module.symvers \
    230 /usr/src/linux-${PVER}-${BRANCH}-${PBUILD} \
    231 || die
    232
    233 # install kernel description
    234 echo "
    235 KRNVER=${BRANCH}-${PVER}-${ARCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}
    236 KRNLIB=${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}
    237 KRNIMG=kernel-${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}
    238 KRNINITRD=
    239 " > ${BINDIR}/boot/kernelversion || die
    240
    241 # install kernel-config from srcdir
    242 minstallfile .config \
    243 /boot/config-${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION} \
    244 || die
    245
    246 # fix build symlink
    247 if [ -L ${BINDIR}/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/build ]
    248 then
    249 echo "fixing build symlink"
    250 rm ${BINDIR}/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/build || die
    251 mlink /usr/src/linux-${PVER}-${BRANCH}-${PBUILD} \
    252 /lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/build \
    253 || die
    254 fi
    255
    256 # and fixing source symlink
    257 if [ -L ${BINDIR}/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/source ]
    258 then
    259 echo "fixing source symlink"
    260 rm ${BINDIR}/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/source || die
    261 mlink /usr/src/linux-${PVER}-${BRANCH}-${PBUILD} \
    262 /lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/source \
    263 || die
    264 fi
    265
    266 # remove firmware bits if $LINUX_FIRMWARE was set
    267 if [[ ! -z ${LINUX_FIRMWARE} ]] && [[ ${LINUX_FIRMWARE} != internal ]]
    268 then
    269 if [[ -d ${BINDIR}/lib/firmware ]]
    270 then
    271 rm -rv ${BINDIR}/lib/firmware
    272 fi
    273 fi
    274
    275 # compress modules if COMPRESS_MODULES_CMD was set
    276 if [[ ! -z ${COMPRESS_MODULES_CMD} ]]
    277 then
    278 # compress all kernel modules
    279 find ${BINDIR} -name \*.ko | xargs ${COMPRESS_MODULES_CMD} || die
    280 fi
    281 }
    282
    283 kernel_headers_src_install()
    284 {
    285 cd ${SRCDIR}
    286 make ARCH=${ARCH/i*86/x86} INSTALL_HDR_PATH=${BINDIR}/usr headers_install || die
    287 }
    288
    289 kernel_sources_src_install()
    290 {
    291 cd ${BUILDDIR}
    292
    293 echo "Creating linux-${PVER}-${BRANCH}-${PBUILD} sources tarball ... "
    294 tar cvjf ${BUILDDIR}/linux-${PVER}-${BRANCH}-${PBUILD}.tar.bz2 $(basename ${SRCDIR}) || die
    295
    296 echo "Moving linux-${PVER}-${BRANCH}-${PBUILD} tarball to \${BINDIR}/usr/src ... "
    297 minstalldir /usr/src || die
    298 mv ${BUILDDIR}/linux-${PVER}-${BRANCH}-${PBUILD}.tar.bz2 ${BINDIR}/usr/src || die
    299 }
    300
    301 # installs module-sources path/to/SRCDIR to MODDIR/MODNAME
    302 # kernel_external_modules_install path/to/SRCDIR DESTDIRNAME
    303 kernel_external_modules_install()
    304 {
    305 cd ${BUILDDIR}
    306
    307 local modsrc="$1"
    308 local moddest="$2"
    309 local moddir="${BUILDDIR}/kernel-modules-${PVER}-${BRANCH}-${PBUILD}"
    310
    311 echo "Installing ${modsrc} to ${moddir}/${moddest} ..."
    312 install -d ${moddir} || die
    313 mv ${modsrc} ${moddir}/${moddest} || die
    314 }
    315
    316 kernel_external_modules_tarball()
    317 {
    318 cd ${BUILDDIR}
    319
    320 echo "Creating kernel-modules-${PVER}-${BRANCH}-${PBUILD} sources tarball ... "
    321 tar cvjf ${BUILDDIR}/kernel-modules-${PVER}-${BRANCH}-${PBUILD}.tar.bz2 \
    322 kernel-modules-${PVER}-${BRANCH}-${PBUILD} || die
    323
    324 echo "Moving kernel-modules-${PVER}-${BRANCH}-${PBUILD} tarball to \${BINDIR}/usr/src ... "
    325 minstalldir /usr/src || die
    326 mv ${BUILDDIR}/kernel-modules-${PVER}-${BRANCH}-${PBUILD}.tar.bz2 ${BINDIR}/usr/src || die
    327 }
    328
    329 kernel_src_install()
    330 {
    331 case ${KERNEL_TYPE} in
    332 image)
    333 kernel_image_src_install || die
    334 ;;
    335
    336 headers)
    337 kernel_headers_src_install || die
    338 ;;
    339
    340 sources)
    341 kernel_sources_src_install || die
    342 ;;
    343 esac
    344 }
    345
    346 kernel_major_version()
    347 {
    348 local ksrc="$@"
    349 local kv
    350
    351 if [[ -z ${ksrc} ]]
    352 then
    353 kv="$(uname -r|cut -d. -f1-2)"
    354 else
    355 local version
    356 local patchlevel
    357
    358 # get version from makefile
    359 version=$(grep "^VERSION[[:space:]]*=[[:space:]]*[[:digit:]]" ${ksrc}/Makefile | sed "s/^.*=[[:space:]]*\([[:digit:]]\+\)/\1/g")
    360 # get patchlevel from makefile
    361 patchlevel=$(grep "^PATCHLEVEL[[:space:]]*=[[:space:]]*[[:digit:]]" ${ksrc}/Makefile | sed "s/^.*=[[:space:]]*\([[:digit:]]\+\)/\1/g")
    362 # kernelversion
    363 kv="${version}.${patchlevel}"
    364 fi
    365
    366 echo "${kv}"
    367 }
    368
    369 mod_suffix()
    370 {
    371 local ksrc="$@"
    372 local mod_suffix
    373 local kmv
    374
    375 kmv=$(kernel_major_version ${ksrc})
    376 if [[ ${kmv//.} -ge 26 ]]
    377 then
    378 mod_suffix="ko"
    379 else
    380 mod_suffix="o"
    381 fi
    382
    383 echo ${mod_suffix}
    384 }
    385
    386 kernel_image_preinstall()
    387 {
    388 if [[ -z ${MROOT} ]] || [[ ${MROOT} = / ]]
    389 then
    390 mount /boot &> /dev/null
    391 fi
    392 }
    393
    394 kernel_image_preremove()
    395 {
    396 if [[ -z ${MROOT} ]] || [[ ${MROOT} = / ]]
    397 then
    398 mount /boot &> /dev/null
    399 fi
    400 }
    401
    402 kernel_image_postremove()
    403 {
    404 if [[ -z ${MROOT} ]] || [[ ${MROOT} = / ]]
    405 then
    406 # remove old image entry from grub
    407 new-kernel-pkg -v --rminitrd --remove ${KPVER}-${KBRANCH}-${KPBUILD}
    408 fi
    409 }
    410
    411 kernel_image_postinstall()
    412 {
    413 [ ! -d ${MROOT}/sys ] && install -d ${MROOT}/sys
    414
    415 # fixes a small glitch in <=mage-0.3.6-r15 with symlinks
    416 [ -f ${MROOT}/usr/src/linux-${KPVER}-${KBRANCH}-${KPBUILD} ] && \
    417 rm ${MROOT}/usr/src/linux-${KPVER}-${KBRANCH}-${KPBUILD}
    418
    419 [ -x ${MROOT}/sbin/depmod ] &&
    420 ${MROOT}/sbin/depmod -ae \
    421 -F /boot/System.map-${KPVER}-${KBRANCH}-${KPBUILD} \
    422 ${KPVER}-${KBRANCH}-${KPBUILD}
    423
    424 # do not run this if ${MROOT} is set !
    425 if [[ -z ${MROOT} ]] || [[ ${MROOT} = / ]]
    426 then
    427 new-kernel-pkg -v --mkinitrd --make-default --install ${KPVER}-${KBRANCH}-${KPBUILD}
    428 fi
    429
    430 # symlink actual kernel to /boot/vmlinuz etc...
    431 ln -snf kernel-${KPVER}-${KBRANCH}-${KPBUILD} ${MROOT}/boot/vmlinuz
    432 ln -snf System.map-${KPVER}-${KBRANCH}-${KPBUILD} ${MROOT}/boot/System.map
    433 ln -snf config-${KPVER}-${KBRANCH}-${KPBUILD} ${MROOT}/boot/config
    434 [[ -f ${MROOT}/boot/initrd-${KPVER}-${KBRANCH}-${KPBUILD}.img ]] &&
    435 ln -snf initrd-${KPVER}-${KBRANCH}-${KPBUILD}.img ${MROOT}/boot/initrd
    436 }
    437
    438 kernel_sources_postinstall()
    439 {
    440 # check for linux-VERSION/include as the kernel-image installs
    441 # the file Modules.symver in the linux-VERSION directory
    442 if [ ! -d ${MROOT}/usr/src/linux-${KPVER}-${KBRANCH}-${KPBUILD}/include ]
    443 then
    444 echo "Unpacking linux-${KPVER}-${KBRANCH}-${KPBUILD} source tarball ... "
    445 tar xvjf ${MROOT}/usr/src/linux-${KPVER}-${KBRANCH}-${KPBUILD}.tar.bz2 -C ${MROOT}/usr/src
    446 fi
    447
    448 if [ ! -d ${MROOT}/usr/src/kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD} ] &&
    449 [ -f ${MROOT}/usr/src/kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD}.tar.bz2 ]
    450 then
    451 echo "Unpacking kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD} source tarball ... "
    452 tar xvjf ${MROOT}/usr/src/kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD}.tar.bz2 -C ${MROOT}/usr/src
    453 fi
    454
    455 # if not exist create linux symlink
    456 if [ ! -h ${MROOT}/usr/src/linux ]
    457 then
    458 echo "Creating linux -> linux-${KPVER}-${KBRANCH}-${KPBUILD} symlink ... "
    459 [ ! -d ${MROOT}/usr/src ] && install ${MROOT}/usr/src
    460 ln -snf ${MROOT}/usr/src/linux-${KPVER}-${KBRANCH}-${KPBUILD} \
    461 ${MROOT}/usr/src/linux || die
    462 fi
    463
    464 # if not exist create kernel-modules symlink
    465 if [ ! -h ${MROOT}/usr/src/kernel-modules ] &&
    466 [ -d ${MROOT}/usr/src/kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD} ]
    467 then
    468 echo "Creating kernel-modules -> kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD} symlink ... "
    469 [ ! -d ${MROOT}/usr/src ] && install ${MROOT}/usr/src
    470 ln -snf ${MROOT}/usr/src/kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD} \
    471 ${MROOT}/usr/src/kernel-modules || die
    472 fi
    473 }
    474
    475 export_inherits kernel src_prepare src_compile src_install
    476
    477 # export pre/postinstall functions depending on KERNEL_TYPE
    478 case ${KERNEL_TYPE} in
    479 image)
    480 export_inherits kernel_image preinstall preremove postinstall postremove
    481 SPECIAL_FUNCTIONS="${SPECIAL_FUNCTIONS} kernel_image_preinstall kernel_image_preremove kernel_image_postinstall kernel_image_postremove"
    482 ;;
    483 sources)
    484 export_inherits kernel_sources postinstall
    485 SPECIAL_FUNCTIONS="${SPECIAL_FUNCTIONS} kernel_sources_postinstall"
    486 ;;
    487 esac