# $Id: PKGBUILD 130991 2011-07-09 12:23:51Z thomas $
# Maintainer: Cecil Watson <knoppmyth@gmail.com>
pkgbase="kernel26"
pkgname=('kernel26' 'kernel26-headers' 'kernel26-docs') # Build stock -ARCH kernel
# pkgname=kernel26-custom       # Build kernel with a different name
_kernelname=${pkgname#kernel26}
_basekernel=2.6.39
pkgver=${_basekernel}.4
pkgrel=3
makedepends=('xmlto' 'docbook-xsl')
_archpatch=1
_patchname="patch-${_basekernel}-1-ARCH"
_fbpatchname="fbcondecor-0.9.6-3.0-rc2.patch"
_kernelpatch="patch-${pkgver}"
#_ckpatchversion=2
#_ckpatchname="patch-${_basekernel}-ck${_ckpatchversion}"
#_bfqpatch1="0001-block-prepare-I-O-context-code-for-BFQ-v2-for-2.6.39.patch"
#_bfqpath="http://algo.ing.unimo.it/people/paolo/disk_sched/patches/2.6.39"
#_bfqpatch2="0002-block-cgroups-kconfig-build-bits-for-BFQ-v2-2.6.39.patch"
#_bfqpatch3="0003-block-introduce-the-BFQ-v2-I-O-sched-for-2.6.39.patch"
_aufspath="http://chakra-project.org/sources/kernel26/patches/39/aufs2.1/"
_aufs1="aufs2-base-39-20110704.patch"
_aufs2="aufs2-kbuild-39-20110704.patch"
_aufs3="aufs2-standalone-39-20110704.patch"
_aufs4="aufs2.1-standalone.tree-39-20110704.patch.bz2"
_aufs5="aufs2.1-standalone.tree-39-20110704.patch"
#_patchname="patch-${pkgver}-1-ARCH"
arch=(i686 x86_64)
license=('GPL2')
url="http://www.kernel.org"
options=(!strip)
source=(ftp://ftp.kernel.org/pub/linux/kernel/v2.6/linux-$_basekernel.tar.bz2
		http://www.kernel.org/pub/linux/kernel/v2.6/$_kernelpatch.bz2
        ftp://ftp.archlinux.org/other/kernel26/${_patchname}.bz2
		http://dev.gentoo.org/~spock/projects/fbcondecor/archive/${_fbpatchname}
		#http://www.kernel.org/pub/linux/kernel/people/ck/patches/2.6/${_basekernel}/${_basekernel}-ck${_ckpatchversion}/${_ckpatchname}.bz2
		# Let's leave these out for now...
		#${_bfqpath}/${_bfqpatch1}
		#${_bfqpath}/${_bfqpatch2}
		#${_bfqpath}/${_bfqpatch3}
		#fix_ck2.patch
		logo_linux_clut224.ppm
		lh.patch
		${_aufspath}/${_aufs1}
		${_aufspath}/${_aufs2}
		${_aufspath}/${_aufs3}
		${_aufspath}/${_aufs4}
        # the main kernel config files
        config config.x86_64
        # standard config files for mkinitcpio ramdisk
        kernel26.preset)

build() {
  # patch -N -i ${srcdir}/fix_ck2.patch
  cd ${srcdir}/linux-$_basekernel
  # Add -ARCH patches
  # See http://projects.archlinux.org/linux-2.6-ARCH.git/
  patch -Np1 -i ${srcdir}/${_kernelpatch}
  patch -Np1 -i ${srcdir}/${_patchname}
    # Add -LinHES patches
  patch -Np1 -i ${srcdir}/${_fbpatchname}
  # patch -Np1 -i ${srcdir}/${_ckpatchname}
  patch -Np1 -i ${srcdir}/lh.patch
  patch -Np1 -i ${srcdir}/${_aufs1}
  patch -Np1 -i ${srcdir}/${_aufs2}
  patch -Np1 -i ${srcdir}/${_aufs3}
  patch -Np1 -i ${srcdir}/${_aufs5}
  
  # Let's leave these out for now...
  #patch -Np1 -i ${srcdir}/${_bfqpatch1}
  #patch -Np1 -i ${srcdir}/${_bfqpatch2}
  #patch -Np1 -i ${srcdir}/${_bfqpatch3}
  install -m644 ${srcdir}/logo_linux_clut224.ppm drivers/video/logo/

  if [ "$CARCH" = "x86_64" ]; then
    cat ../config.x86_64 >./.config
  else
    cat ../config >./.config
  fi
  if [ "${_kernelname}" != "" ]; then
    sed -i "s|CONFIG_LOCALVERSION=.*|CONFIG_LOCALVERSION=\"${_kernelname}\"|g" ./.config
  fi
  # get kernel version  
  make prepare
  # load configuration
  # Configure the kernel. Replace the line below with one of your choice.
  #make menuconfig # CLI menu for configuration
  #make nconfig # new CLI menu for configuration
  #make xconfig # X-based configuration
  #make oldconfig # using old config from previous kernel version
  # ... or manually edit .config
  ####################
  # stop here
  # this is useful to configure the kernel
  #msg "Stopping build"
  #return 1
  ####################
  yes "" | make config
  # build!
  make ${MAKEFLAGS} bzImage modules
}

package_kernel26() {
  pkgdesc="The Linux Kernel and modules"
  groups=('base')
  backup=(etc/mkinitcpio.d/${pkgname}.preset)
  depends=('coreutils' 'linux-firmware' 'module-init-tools>=3.12-2' 'mkinitcpio>=0.6.15')
  # pwc, ieee80211 and hostap-driver26 modules are included in kernel26 now
  # nforce package support was abandoned by nvidia, kernel modules should cover everything now.
  # kernel24 support is dropped since glibc24
  replaces=('kernel24' 'kernel24-scsi' 'kernel26-scsi'
            'alsa-driver' 'ieee80211' 'hostap-driver26'
            'pwc' 'nforce' 'squashfs' 'unionfs' 'ivtv'
            'zd1211' 'kvm-modules' 'iwlwifi' 'rt2x00-cvs'
            'gspcav1' 'atl2' 'wlan-ng26' 'rt2500' 'nouveau-drm')
  provides=('aufs2')
  install=kernel26.install
  optdepends=('crda: to set the correct wireless channels of your country')

  KARCH=x86
  cd ${srcdir}/linux-$_basekernel
  # get kernel version
  _kernver="$(make kernelrelease)"
  mkdir -p ${pkgdir}/{lib/modules,lib/firmware,boot}
  make INSTALL_MOD_PATH=${pkgdir} modules_install
  cp System.map ${pkgdir}/boot/System.map26${_kernelname}
  cp arch/$KARCH/boot/bzImage ${pkgdir}/boot/vmlinuz26${_kernelname}
  #  # add vmlinux
  install -m644 -D vmlinux ${pkgdir}/usr/src/linux-${_kernver}/vmlinux

  # install fallback mkinitcpio.conf file and preset file for kernel
  install -m644 -D ${srcdir}/kernel26.preset ${pkgdir}/etc/mkinitcpio.d/${pkgname}.preset
  # set correct depmod command for install
  sed \
    -e  "s/KERNEL_NAME=.*/KERNEL_NAME=${_kernelname}/g" \
    -e  "s/KERNEL_VERSION=.*/KERNEL_VERSION=${_kernver}/g" \
    -i $startdir/kernel26.install
  sed \
    -e "s|source .*|source /etc/mkinitcpio.d/kernel26${_kernelname}.kver|g" \
    -e "s|default_image=.*|default_image=\"/boot/${pkgname}.img\"|g" \
    -e "s|fallback_image=.*|fallback_image=\"/boot/${pkgname}-fallback.img\"|g" \
    -i ${pkgdir}/etc/mkinitcpio.d/${pkgname}.preset

  echo -e "# DO NOT EDIT THIS FILE\nALL_kver='${_kernver}'" > ${pkgdir}/etc/mkinitcpio.d/${pkgname}.kver
  # remove build and source links
  rm -f ${pkgdir}/lib/modules/${_kernver}/{source,build}
  # remove the firmware
  rm -rf ${pkgdir}/lib/firmware
  # gzip -9 all modules to safe 100MB of space
  find "$pkgdir" -name '*.ko' -exec gzip -9 {} \;
}

package_kernel26-headers() {
  pkgdesc="Header files and scripts for building modules for kernel26"
  mkdir -p ${pkgdir}/lib/modules/${_kernver}
  cd ${pkgdir}/lib/modules/${_kernver}
  ln -sf ../../../usr/src/linux-${_kernver} build
  cd ${srcdir}/linux-$_basekernel
  install -D -m644 Makefile \
    ${pkgdir}/usr/src/linux-${_kernver}/Makefile
  install -D -m644 kernel/Makefile \
    ${pkgdir}/usr/src/linux-${_kernver}/kernel/Makefile
  install -D -m644 .config \
    ${pkgdir}/usr/src/linux-${_kernver}/.config
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/include

  for i in acpi asm-generic config crypto drm generated linux math-emu \
    media net pcmcia scsi sound trace video xen; do
    cp -a include/$i ${pkgdir}/usr/src/linux-${_kernver}/include/
  done

  # copy arch includes for external modules
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/arch/x86
  cp -a arch/x86/include ${pkgdir}/usr/src/linux-${_kernver}/arch/x86/

  # copy files necessary for later builds, like nvidia and vmware
  cp Module.symvers ${pkgdir}/usr/src/linux-${_kernver}
  cp -a scripts ${pkgdir}/usr/src/linux-${_kernver}
  # fix permissions on scripts dir
  chmod og-w -R ${pkgdir}/usr/src/linux-${_kernver}/scripts
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/.tmp_versions

  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/arch/$KARCH/kernel

  cp arch/$KARCH/Makefile ${pkgdir}/usr/src/linux-${_kernver}/arch/$KARCH/
  if [ "$CARCH" = "i686" ]; then
    cp arch/$KARCH/Makefile_32.cpu ${pkgdir}/usr/src/linux-${_kernver}/arch/$KARCH/
  fi
  cp arch/$KARCH/kernel/asm-offsets.s ${pkgdir}/usr/src/linux-${_kernver}/arch/$KARCH/kernel/

  # add headers for lirc package
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/video
  cp drivers/media/video/*.h  ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/video/
  for i in bt8xx cpia2 cx25840 cx88 em28xx et61x251 pwc saa7134 sn9c102; do
   mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/video/$i
   cp -a drivers/media/video/$i/*.h ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/video/$i
  done
  # add docbook makefile
  install -D -m644 Documentation/DocBook/Makefile \
    ${pkgdir}/usr/src/linux-${_kernver}/Documentation/DocBook/Makefile
  # add dm headers
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/drivers/md
  cp drivers/md/*.h  ${pkgdir}/usr/src/linux-${_kernver}/drivers/md
  # add inotify.h
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/include/linux
  cp include/linux/inotify.h ${pkgdir}/usr/src/linux-${_kernver}/include/linux/
  # add wireless headers
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/net/mac80211/
  cp net/mac80211/*.h ${pkgdir}/usr/src/linux-${_kernver}/net/mac80211/
  # add dvb headers for external modules
  # in reference to:
  # http://bugs.archlinux.org/task/9912
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/dvb-core
  cp drivers/media/dvb/dvb-core/*.h ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/dvb-core/
  # add dvb headers for external modules
  # in reference to:
  # http://bugs.archlinux.org/task/11194
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/include/config/dvb/
  cp include/config/dvb/*.h ${pkgdir}/usr/src/linux-${_kernver}/include/config/dvb/
  # add dvb headers for http://mcentral.de/hg/~mrec/em28xx-new
  # in reference to:
  # http://bugs.archlinux.org/task/13146
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/frontends/
  cp drivers/media/dvb/frontends/lgdt330x.h ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/frontends/
  cp drivers/media/video/msp3400-driver.h ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/frontends/
  # add dvb headers  
  # in reference to:
  # http://bugs.archlinux.org/task/20402
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/dvb-usb
  cp drivers/media/dvb/dvb-usb/*.h ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/dvb-usb/
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/frontends
  cp drivers/media/dvb/frontends/*.h ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/frontends/
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/common/tuners
  cp drivers/media/common/tuners/*.h ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/common/tuners/
  # add xfs and shmem for aufs building
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/fs/xfs
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/mm
  cp fs/xfs/xfs_sb.h ${pkgdir}/usr/src/linux-${_kernver}/fs/xfs/xfs_sb.h
  # copy in Kconfig files
  for i in `find . -name "Kconfig*"`; do 
    mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/`echo $i | sed 's|/Kconfig.*||'`
    cp $i ${pkgdir}/usr/src/linux-${_kernver}/$i
  done

  chown -R root.root ${pkgdir}/usr/src/linux-${_kernver}
  find ${pkgdir}/usr/src/linux-${_kernver} -type d -exec chmod 755 {} \;
  # strip scripts directory
  find ${pkgdir}/usr/src/linux-${_kernver}/scripts  -type f -perm -u+w 2>/dev/null | while read binary ; do
  case "$(file -bi "$binary")" in
    *application/x-sharedlib*) # Libraries (.so)
    /usr/bin/strip $STRIP_SHARED "$binary";;
    *application/x-archive*) # Libraries (.a)
    /usr/bin/strip $STRIP_STATIC "$binary";;
    *application/x-executable*) # Binaries
    /usr/bin/strip $STRIP_BINARIES "$binary";;
    esac 
  done 
  # remove unneeded architectures
  rm -rf ${pkgdir}/usr/src/linux-${_kernver}/arch/{alpha,arm,arm26,avr32,blackfin,cris,frv,h8300,ia64,m32r,m68k,m68knommu,mips,microblaze,mn10300,parisc,powerpc,ppc,s390,sh,sh64,sparc,sparc64,um,v850,xtensa}
}

package_kernel26-docs() {
pkgdesc="Kernel hackers manual - HTML documentation that comes with the Linux kernel."

cd ${srcdir}/linux-$_basekernel
mkdir -p $pkgdir/usr/src/linux-$_kernver
mv Documentation $pkgdir/usr/src/linux-$_kernver
find $pkgdir -type f -exec chmod 444 {} \;
find $pkgdir -type d -exec chmod 755 {} \;
# remove a file already in kernel26 package
rm -f $pkgdir/usr/src/linux-$_kernver/Documentation/DocBook/Makefile
}

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