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    Contents of /trunk/include/kernel.sminc

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    Revision 10194 - (show annotations) (download)
    Thu Jan 19 16:19:14 2012 UTC (12 years, 3 months ago) by niro
    File size: 13629 byte(s) 
    -use virtual module-tools
    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 : ${PCAT="sys-kernel"}
    63 : ${HOMEPAGE="http://magellan-linux.de/"}
    64 : ${TARBALLPVER="${PVER}"}
    65 : ${SRCFILE="linux-${TARBALLPVER}.tar.bz2"}
    66 : ${SRCDIR="${BUILDDIR}/linux-${PVER}-${BRANCH}-${PBUILD}"}
    67
    68 if [[ -z ${SRC_URI[*]} ]]
    69 then
    70 SRC_URI=(
    71 http://www.kernel.org/pub/linux/kernel/v$(echo ${PVER} | cut -d. -f1).x/${SRCFILE}
    72 http://ftp.uni-erlangen.de/pub/Linux/MIRROR.kernel/v$(echo ${PVER} | cut -d. -f1).x/${SRCFILE}
    73 mirror://kernel-${BRANCH}/${SRCFILE}
    74 )
    75 case ${KERNEL_TYPE} in
    76 image|sources)
    77 SRC_URI=(
    78 ${SRC_URI[*]}
    79 mirror://kernel-${BRANCH}/config-${PVER}-${BRANCH}-${PBUILD}-i686
    80 mirror://kernel-${BRANCH}/config-${PVER}-${BRANCH}-${PBUILD}-x86_64
    81 )
    82 ;;
    83 esac
    84 fi
    85
    86 case ${KERNEL_TYPE} in
    87 image)
    88 : ${PROVIDE="virtual/kernel"}
    89 : ${DEPEND=">= virtual/module-tools
    90 >= sys-fs/udev-115
    91 >= virtual/initramfs-tools
    92 >= virtual/initscripts"}
    93 : ${DESCRIPTION="Kernel image of the '${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}' kernel branch."}
    94 ;;
    95
    96 sources)
    97 : ${PROVIDE="virtual/kernel-sources"}
    98 : ${DESCRIPTION="Kernel sources of the '${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}' kernel branch."}
    99 ;;
    100
    101 headers)
    102 : ${PROVIDE="virtual/kernel-headers"}
    103 : ${DESCRIPTION="Sanitized kernel headers for libc."}
    104 ;;
    105 esac
    106
    107 EXTRAVERSION="${PSUBVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}"
    108 KERNEL_CONFIG="${SOURCEDIR}/${PNAME}/config-${PVER}-${BRANCH}-${PBUILD}-${ARCH}"
    109
    110 # special vars for mage file only
    111 KPVER="${PVER}"
    112 KPBUILD="${PBUILD}"
    113 KBRANCH="${BRANCH}"
    114 SPECIAL_VARS="${SPECIAL_VARS} KPVER KPBUILD KBRANCH"
    115
    116 kernel_src_prepare()
    117 {
    118 munpack ${SRCFILE} || die
    119 mv ${BUILDDIR}/linux-${TARBALLPVER} ${SRCDIR} || die
    120
    121 # fix permissions
    122 chown -R 0:0 ${SRCDIR} || die
    123 chmod -R a+r-w+X,u+w ${SRCDIR} || die
    124
    125 cd ${SRCDIR}
    126
    127 # fixes INSTALL_PATH to /boot and EXTRAVERSION
    128 sed -i -e 's:#export\tINSTALL_PATH:export\tINSTALL_PATH:' \
    129 -e "s:^\(EXTRAVERSION =\).*:\1 ${EXTRAVERSION}:" Makefile || die
    130
    131 # fix sublevel version with 3.x kernels and higher
    132 local kver=$(echo ${PVER} | sed "s:\.::g")
    133 if [[ ${PVER%%.*} -gt 2 ]]
    134 then
    135 local sublevel="$(echo ${PVER} | cut -d. -f3)"
    136 sed -i "s:^\(SUBLEVEL =\).*:\1 ${sublevel}:" Makefile || die
    137 fi
    138 }
    139
    140 kernel_src_compile()
    141 {
    142 cd ${SRCDIR}
    143
    144 make mrproper || die
    145
    146 if [[ ${KERNEL_TYPE} = sources ]] || [[ ${KERNEL_TYPE} = image ]]
    147 then
    148 # inject our kernel config
    149 cp ${KERNEL_CONFIG} ${SRCDIR}/.config || die
    150 make ARCH=${ARCH/i*86/x86} oldconfig || die
    151 fi
    152
    153 case ${KERNEL_TYPE} in
    154 image)
    155 mmake ARCH=${ARCH/i*86/x86} || die
    156 ;;
    157
    158 headers)
    159 make ARCH=${ARCH/i*86/x86} headers_check || die
    160 ;;
    161
    162 sources)
    163 make clean || die
    164
    165 # needed to compile other programs like iptables
    166 make ARCH=${ARCH/i*86/x86} prepare || die
    167 # needed to cover >=2.6.14 builds
    168 # but deprecated with >=2.6.21, prepare cover all targets there
    169 local kver=$(echo ${PVER} | sed "s:\.::g")
    170 # honor >=3.0.x; add one zero
    171 if [[ ${PVER%%.*} -gt 2 ]]
    172 then
    173 kver="${kver}0"
    174 fi
    175 if [[ ${kver} < 2621 ]]
    176 then
    177 make ARCH=${ARCH/i*86/x86} prepare-all || die
    178 fi
    179 make ARCH=${ARCH/i*86/x86} scripts || die
    180
    181 # at least alsa-drivers needs this one ...
    182 touch include/linux/autoconf.h || die
    183 ;;
    184 esac
    185 }
    186
    187 kernel_image_src_install()
    188 {
    189 cd ${SRCDIR}
    190
    191 # needed directories
    192 minstalldir /boot || die
    193
    194 # install modules
    195 make ARCH=${ARCH/i*86/x86} INSTALL_MOD_PATH=${BINDIR} modules_install || die
    196
    197 # install kernelimage
    198 if [[ -z ${KERNEL_IMAGE_PATH} ]]
    199 then
    200 local my_arch="${ARCH}"
    201 [[ ${my_arch} = i*86 ]] && my_arch=i386
    202 minstallfile arch/${my_arch}/boot/bzImage \
    203 /boot/kernel-${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION} \
    204 || die
    205 else
    206 minstallfile ${KERNEL_IMAGE_PATH} \
    207 /boot/kernel-${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION} \
    208 || die
    209 fi
    210
    211 # install System.map
    212 minstallfile System.map \
    213 /boot/System.map-${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION} \
    214 || die
    215
    216 # install Module.symvers in boot and /usr/src
    217 minstallfile Module.symvers \
    218 /boot/Module.symvers-${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION} \
    219 || die
    220 minstalldir /usr/src/linux-${PVER}-${BRANCH}-${PBUILD} || die
    221 minstallfile Module.symvers \
    222 /usr/src/linux-${PVER}-${BRANCH}-${PBUILD} \
    223 || die
    224
    225 # install kernel description
    226 echo "
    227 KRNVER=${BRANCH}-${PVER}-${ARCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}
    228 KRNLIB=${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}
    229 KRNIMG=kernel-${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}
    230 KRNINITRD=
    231 " > ${BINDIR}/boot/kernelversion || die
    232
    233 # install kernel-config from srcdir
    234 minstallfile .config \
    235 /boot/config-${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION} \
    236 || die
    237
    238 # fix build symlink
    239 if [ -L ${BINDIR}/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/build ]
    240 then
    241 echo "fixing build symlink"
    242 rm ${BINDIR}/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/build || die
    243 mlink /usr/src/linux-${PVER}-${BRANCH}-${PBUILD} \
    244 /lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/build \
    245 || die
    246 fi
    247
    248 # and fixing source symlink
    249 if [ -L ${BINDIR}/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/source ]
    250 then
    251 echo "fixing source symlink"
    252 rm ${BINDIR}/lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/source || die
    253 mlink /usr/src/linux-${PVER}-${BRANCH}-${PBUILD} \
    254 /lib/modules/${PVER}-${BRANCH}-${PBUILD}${KERNEL_ARCH_EXTENSION}/source \
    255 || die
    256 fi
    257
    258 # remove firmware bits if $LINUX_FIRMWARE was set
    259 if [[ ! -z ${LINUX_FIRMWARE} ]] && [[ ${LINUX_FIRMWARE} != internal ]]
    260 then
    261 if [[ -d ${BINDIR}/lib/firmware ]]
    262 then
    263 rm -rv ${BINDIR}/lib/firmware
    264 fi
    265 fi
    266
    267 # compress modules if COMPRESS_MODULES_CMD was set
    268 if [[ ! -z ${COMPRESS_MODULES_CMD} ]]
    269 then
    270 # compress all kernel modules
    271 find ${BINDIR} -name \*.ko | xargs ${COMPRESS_MODULES_CMD} || die
    272 fi
    273 }
    274
    275 kernel_headers_src_install()
    276 {
    277 cd ${SRCDIR}
    278 make ARCH=${ARCH/i*86/x86} INSTALL_HDR_PATH=${BINDIR}/usr headers_install || die
    279
    280 # clean-up unnecessary files
    281 find ${BINDIR} -name .install -or -name ..install.cmd | xargs --no-run-if-empty rm -f
    282 }
    283
    284 kernel_sources_src_install()
    285 {
    286 cd ${BUILDDIR}
    287
    288 echo "Creating linux-${PVER}-${BRANCH}-${PBUILD} sources tarball ... "
    289 tar cvjf ${BUILDDIR}/linux-${PVER}-${BRANCH}-${PBUILD}.tar.bz2 $(basename ${SRCDIR}) || die
    290
    291 echo "Moving linux-${PVER}-${BRANCH}-${PBUILD} tarball to \${BINDIR}/usr/src ... "
    292 minstalldir /usr/src || die
    293 mv ${BUILDDIR}/linux-${PVER}-${BRANCH}-${PBUILD}.tar.bz2 ${BINDIR}/usr/src || die
    294 }
    295
    296 # installs module-sources path/to/SRCDIR to MODDIR/MODNAME
    297 # kernel_external_modules_install path/to/SRCDIR DESTDIRNAME
    298 kernel_external_modules_install()
    299 {
    300 cd ${BUILDDIR}
    301
    302 local modsrc="$1"
    303 local moddest="$2"
    304 local moddir="${BUILDDIR}/kernel-modules-${PVER}-${BRANCH}-${PBUILD}"
    305
    306 echo "Installing ${modsrc} to ${moddir}/${moddest} ..."
    307 install -d ${moddir} || die
    308 mv ${modsrc} ${moddir}/${moddest} || die
    309 }
    310
    311 kernel_external_modules_tarball()
    312 {
    313 cd ${BUILDDIR}
    314
    315 echo "Creating kernel-modules-${PVER}-${BRANCH}-${PBUILD} sources tarball ... "
    316 tar cvjf ${BUILDDIR}/kernel-modules-${PVER}-${BRANCH}-${PBUILD}.tar.bz2 \
    317 kernel-modules-${PVER}-${BRANCH}-${PBUILD} || die
    318
    319 echo "Moving kernel-modules-${PVER}-${BRANCH}-${PBUILD} tarball to \${BINDIR}/usr/src ... "
    320 minstalldir /usr/src || die
    321 mv ${BUILDDIR}/kernel-modules-${PVER}-${BRANCH}-${PBUILD}.tar.bz2 ${BINDIR}/usr/src || die
    322 }
    323
    324 kernel_src_install()
    325 {
    326 case ${KERNEL_TYPE} in
    327 image)
    328 kernel_image_src_install || die
    329 ;;
    330
    331 headers)
    332 kernel_headers_src_install || die
    333 ;;
    334
    335 sources)
    336 kernel_sources_src_install || die
    337 ;;
    338 esac
    339 }
    340
    341 kernel_major_version()
    342 {
    343 local ksrc="$@"
    344 local kv
    345
    346 if [[ -z ${ksrc} ]]
    347 then
    348 kv="$(uname -r|cut -d. -f1-2)"
    349 else
    350 local version
    351 local patchlevel
    352
    353 # get version from makefile
    354 version=$(grep "^VERSION[[:space:]]*=[[:space:]]*[[:digit:]]" ${ksrc}/Makefile | sed "s/^.*=[[:space:]]*\([[:digit:]]\+\)/\1/g")
    355 # get patchlevel from makefile
    356 patchlevel=$(grep "^PATCHLEVEL[[:space:]]*=[[:space:]]*[[:digit:]]" ${ksrc}/Makefile | sed "s/^.*=[[:space:]]*\([[:digit:]]\+\)/\1/g")
    357 # kernelversion
    358 kv="${version}.${patchlevel}"
    359 fi
    360
    361 echo "${kv}"
    362 }
    363
    364 mod_suffix()
    365 {
    366 local ksrc="$@"
    367 local mod_suffix
    368 local kmv
    369
    370 kmv=$(kernel_major_version ${ksrc})
    371 if [[ ${kmv//.} -ge 26 ]]
    372 then
    373 mod_suffix="ko"
    374 else
    375 mod_suffix="o"
    376 fi
    377
    378 echo ${mod_suffix}
    379 }
    380
    381 kernel_image_preinstall()
    382 {
    383 if [[ -z ${MROOT} ]] || [[ ${MROOT} = / ]]
    384 then
    385 mount /boot &> /dev/null
    386 fi
    387 }
    388
    389 kernel_image_preremove()
    390 {
    391 if [[ -z ${MROOT} ]] || [[ ${MROOT} = / ]]
    392 then
    393 mount /boot &> /dev/null
    394 fi
    395 }
    396
    397 kernel_image_postremove()
    398 {
    399 if [[ -z ${MROOT} ]] || [[ ${MROOT} = / ]]
    400 then
    401 # remove old image entry from grub
    402 new-kernel-pkg -v --rminitrd --remove ${KPVER}-${KBRANCH}-${KPBUILD}
    403 fi
    404 }
    405
    406 kernel_image_postinstall()
    407 {
    408 [ ! -d ${MROOT}/sys ] && install -d ${MROOT}/sys
    409
    410 # fixes a small glitch in <=mage-0.3.6-r15 with symlinks
    411 [ -f ${MROOT}/usr/src/linux-${KPVER}-${KBRANCH}-${KPBUILD} ] && \
    412 rm ${MROOT}/usr/src/linux-${KPVER}-${KBRANCH}-${KPBUILD}
    413
    414 [ -x ${MROOT}/sbin/depmod ] &&
    415 ${MROOT}/sbin/depmod -ae \
    416 -F /boot/System.map-${KPVER}-${KBRANCH}-${KPBUILD} \
    417 ${KPVER}-${KBRANCH}-${KPBUILD}
    418
    419 # do not run this if ${MROOT} is set !
    420 if [[ -z ${MROOT} ]] || [[ ${MROOT} = / ]]
    421 then
    422 new-kernel-pkg -v --mkinitrd --make-default --install ${KPVER}-${KBRANCH}-${KPBUILD}
    423 fi
    424
    425 # symlink actual kernel to /boot/vmlinuz etc...
    426 ln -snf kernel-${KPVER}-${KBRANCH}-${KPBUILD} ${MROOT}/boot/vmlinuz
    427 ln -snf System.map-${KPVER}-${KBRANCH}-${KPBUILD} ${MROOT}/boot/System.map
    428 ln -snf config-${KPVER}-${KBRANCH}-${KPBUILD} ${MROOT}/boot/config
    429 [[ -f ${MROOT}/boot/initrd-${KPVER}-${KBRANCH}-${KPBUILD}.img ]] &&
    430 ln -snf initrd-${KPVER}-${KBRANCH}-${KPBUILD}.img ${MROOT}/boot/initrd
    431 }
    432
    433 kernel_sources_postinstall()
    434 {
    435 # check for linux-VERSION/include as the kernel-image installs
    436 # the file Modules.symver in the linux-VERSION directory
    437 if [ ! -d ${MROOT}/usr/src/linux-${KPVER}-${KBRANCH}-${KPBUILD}/include ]
    438 then
    439 echo "Unpacking linux-${KPVER}-${KBRANCH}-${KPBUILD} source tarball ... "
    440 tar xvjf ${MROOT}/usr/src/linux-${KPVER}-${KBRANCH}-${KPBUILD}.tar.bz2 -C ${MROOT}/usr/src
    441 fi
    442
    443 if [ ! -d ${MROOT}/usr/src/kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD} ] &&
    444 [ -f ${MROOT}/usr/src/kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD}.tar.bz2 ]
    445 then
    446 echo "Unpacking kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD} source tarball ... "
    447 tar xvjf ${MROOT}/usr/src/kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD}.tar.bz2 -C ${MROOT}/usr/src
    448 fi
    449
    450 # if not exist create linux symlink
    451 if [ ! -h ${MROOT}/usr/src/linux ]
    452 then
    453 echo "Creating linux -> linux-${KPVER}-${KBRANCH}-${KPBUILD} symlink ... "
    454 [ ! -d ${MROOT}/usr/src ] && install ${MROOT}/usr/src
    455 ln -snf ${MROOT}/usr/src/linux-${KPVER}-${KBRANCH}-${KPBUILD} \
    456 ${MROOT}/usr/src/linux || die
    457 fi
    458
    459 # if not exist create kernel-modules symlink
    460 if [ ! -h ${MROOT}/usr/src/kernel-modules ] &&
    461 [ -d ${MROOT}/usr/src/kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD} ]
    462 then
    463 echo "Creating kernel-modules -> kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD} symlink ... "
    464 [ ! -d ${MROOT}/usr/src ] && install ${MROOT}/usr/src
    465 ln -snf ${MROOT}/usr/src/kernel-modules-${KPVER}-${KBRANCH}-${KPBUILD} \
    466 ${MROOT}/usr/src/kernel-modules || die
    467 fi
    468 }
    469
    470 export_inherits kernel src_prepare src_compile src_install
    471
    472 # export pre/postinstall functions depending on KERNEL_TYPE
    473 case ${KERNEL_TYPE} in
    474 image)
    475 export_inherits kernel_image preinstall preremove postinstall postremove
    476 SPECIAL_FUNCTIONS="${SPECIAL_FUNCTIONS} kernel_image_preinstall kernel_image_preremove kernel_image_postinstall kernel_image_postremove"
    477 ;;
    478 sources)
    479 export_inherits kernel_sources postinstall
    480 SPECIAL_FUNCTIONS="${SPECIAL_FUNCTIONS} kernel_sources_postinstall"
    481 ;;
    482 esac