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292 lines
7.5 KiB
292 lines
7.5 KiB
# Copyright 1999-2008 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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# $Header:
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inherit eutils linux-info
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# @FUNCTION: last_arg
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# @USING: last_arg manyarguments
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# @DESCRIPTION:
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# print last argument
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last_arg() {
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shift $(( $# - 1 ))
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echo $1
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}
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# @FUNCTION: rm_link_with_file
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# @USING: rm_link_with_file filename
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# @DESCRIPTION:
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# delete the file, and if it is symbolic then delete the file,
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# which point out a link
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rm_link_with_file() {
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[[ -L $1 ]] && rm -f `readlink -f $1`
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rm -f $1
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}
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# @FUNCTION: cp_link_with_file
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# @USING: cp_link_with_file filename suffix
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# @DESCRIPTION:
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# copy the file with the same name with the suffix, and if it is a symbolic
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# link, then also copy the target file with the addition of the suffix
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cp_link_with_file() {
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if [[ -L $1 ]]
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then
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rm -f `readlink -f ${1}`$2
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cp -aH ${1} `readlink -f ${1}`$2
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ln -sf `readlink ${1}`${2} ${1}${2}
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else
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rm -f ${1}${2}
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cp -aH ${1} ${1}${2}
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fi
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}
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# @FUNCTION: make_old_file
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# @USAGE: make_old_file filename
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# @DESCRIPTION:
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# wear out a file, copy the file, adding its name suffix ". old"
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# support symbolic link
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make_old_file() {
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if [[ -e $1 ]]
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then
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rm_link_with_file $1.old
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cp_link_with_file $1 .old
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fi
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rm_link_with_file $1
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}
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# @FUNCTION: update_file
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# @USAGE: wear_out_file filename link
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# @DESCRIPTION:
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# update a file from filename-installed, and make old file if need
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update_file() {
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# if newest file is absent
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[[ -e $1-installed ]] || return 1
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# link and filename exist
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if [[ `readlink -f $2` == `readlink -f $1` ]]
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then
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make_old_file $2
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else
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# rename link to link.old
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mv $2 $2.old &>/dev/null
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# make old filename
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make_old_file $1
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# fix link pointed to previous filename
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find -lname "$1" -exec ln -sf $1.old {} \;
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fi
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# make link to filename
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ln -sf `basename $1` $2
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# rename installed
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mv $1-installed $1
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}
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# @FUNCTION: calculate_update_kernel
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# @USAGE: [kernelname] [kernelversion] [destination]
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# @DESCRIPTION:
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# Make symbolic link to vmlinuz, preserve old vmlinuz
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# Copy initramfs to initrd and initrd-install
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calculate_update_kernel() {
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kversion=$1
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dir=$2
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# update vmlinuz
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update_file ${dir}/vmlinuz-${kversion} ${dir}/vmlinuz
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# update initrd
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update_file ${dir}/initramfs-${kversion} ${dir}/initrd
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# update initrd-install
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update_file ${dir}/initramfs-${kversion}-install ${dir}/initrd-install
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# update System.map
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update_file ${dir}/System.map-${kversion} ${dir}/System.map
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# update config-{KV_FULL}
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make_old_file ${dir}/config-${KV_FULL}
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mv ${dir}/config-${KV_FULL}-installed ${dir}/config-${KV_FULL}
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ebegin "Trying to optimize initramfs"
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( which calculate &>/dev/null && calculate --initrd ) && eend 0 || eend 1
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}
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is_broken_link() {
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fname=$1
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[[ -n $( file $fname | grep "broken symbolic link" ) ]] &&
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return 0 || return 1
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}
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# @FUNCTION: calculate_restore_kernel
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# @USAGE: [destination]
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# @DESCRIPTION:
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# Restore vmlinux.old and initrd.old in destination
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calculate_restore_kernel() {
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dir=$1
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# restore vmlinuz
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is_broken_link ${dir}/vmlinuz && [ -f ${dir}/vmlinuz.old ] &&
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mv ${dir}/vmlinuz.old ${dir}/vmlinuz
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# resotre initrd
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is_broken_link ${dir}/initrd && [ -f ${dir}/initrd.old ] &&
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mv ${dir}/initrd.old ${dir}/initrd
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# restore System.map
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is_broken_link ${dir}/System.map && [ -f ${dir}/System.map.old ] &&
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mv ${dir}/System.map.old ${dir}/System.map
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}
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TMP_INITRAMFS=${T}/initramfs
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SPLASH_DESCRIPTOR=/etc/splash/tty1/1024x768.cfg
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# @FUNCTION: calculate_rm_modules_dir
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# @USAGE: [CONTENTS]
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# @DESCRIPTION:
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# Remove installed files from lib/modules specified by CONTENTS file.
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# For work need specify and create SLOT_T directory for .alreadydel flag file,
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# which determined was or not file removing.
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calculate_rm_modules_dir() {
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PKG_CONTENTS=$1
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[[ -f ${SLOT_T}/.alreadydel ]] && return 0 ||
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touch ${SLOT_T}/.alreadydel &>/dev/null
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addwrite "/lib/modules"
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DIRRM=$( sed -rn '/^dir.*lib\/modules/ s/^\S+\s+(\S+)\s*.*$/\1/p' \
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${PKG_CONTENTS} | sort -r)
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FILERM=$( sed -rn '/^(obj|sym).*lib\/modules/ s/^\S+\s+(\S+)\s+.*$/\1/p' ${PKG_CONTENTS} )
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if [[ -n ${FILERM} ]]
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then
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for f in ${FILERM}
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do
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rm -f $f
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done
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fi
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if [[ -n ${DIRRM} ]]
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then
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for f in ${DIRRM}
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do
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rmdir $f &>/dev/null
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done
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fi
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}
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initramfs_unpack() {
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mkdir -p ${TMP_INITRAMFS}
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cd ${TMP_INITRAMFS}
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# select arch
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UNPACKER="gzip"
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lzma --force -t $1 &>/dev/null && UNPACKER="lzma"
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# unpack initramfs
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${UNPACKER} -dc $1 | cpio -di &>/dev/null
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return $?
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}
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initramfs_change_spalsh() {
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if [ -f ${ROOT}${SPLASH_DESCRIPTOR} ]
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then
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# get silentpic param
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SILENTPIC=$( sed -nr '/^silentpic/ s/^[^=]+=(.*)$/\1/p' \
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${ROOT}${SPLASH_DESCRIPTOR} )
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# get pic param
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PIC=$( sed -nr '/^pic/ s/^[^=]+=(.*)$/\1/p' \
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${ROOT}${SPLASH_DESCRIPTOR} )
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if [ -f ${ROOT}${SILENTPIC} ] && [ -f ${ROOT}${PIC} ]
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then
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cp ${ROOT}${SPLASH_DESCRIPTOR} \
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${TMP_INITRAMFS}${SPLASH_DESCRIPTOR} &&
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mkdir -p ${TMP_INITRAMFS}${SILENTPIC%$(basename $SILENTPIC)} &&
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cp ${ROOT}${SILENTPIC} ${TMP_INITRAMFS}${SILENTPIC} &&
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mkdir -p ${TMP_INITRAMFS}${PIC%$(basename $PIC)} &&
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cp ${ROOT}$PIC ${TMP_INITRAMFS}${PIC}
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return $?
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fi
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else
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return 1
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fi
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}
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initramfs_pack() {
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# pack new initramfs
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cd ${TMP_INITRAMFS}
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find * | cpio -o --quiet -H newc | gzip -9 >$1.new
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# remove old initramfs
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if [[ $? -eq 0 ]]
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then
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rm $1
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mv $1.new $1
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fi
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}
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# @FUNCTION: calculate_update_splash
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# @USAGE: [initramfsfile]
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# @DESCRIPTION:
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# Install into initramfs splash data, which descripted by
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# /etc/splash/tty1/1024x768.cfg
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calculate_update_splash() {
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einfo "Update splash screen"
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initramfs_unpack $1 &&
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initramfs_change_spalsh && initramfs_pack $1
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}
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# @FUNCTION: calculate_set_kernelversion
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# @USAGE: KERNEL_DIR
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# @DESCRIPTION:
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# Change version in Makefile of kernel sources on version specified by
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# variables KV_MAJOR KV_MINOR KV_PATCH KV_TYPE
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calculate_set_kernelversion() {
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KERNEL_DIR=$1
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sed -ri "s/^VERSION = .*$/VERSION = $KV_MAJOR/" \
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${KERNEL_DIR}/Makefile
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sed -ri "s/^PATCHLEVEL = .*$/PATCHLEVEL = $KV_MINOR/" \
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${KERNEL_DIR}/Makefile
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sed -ri "s/^SUBLEVEL = .*$/SUBLEVEL = $KV_PATCH/" \
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${KERNEL_DIR}/Makefile
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sed -ri "s/^EXTRAVERSION = .*$/EXTRAVERSION = $KV_TYPE/" \
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${KERNEL_DIR}/Makefile
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}
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# FUNCTION: calculate_update_modules
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# DESCRIPTION:
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# It calls the update-modules utility. Get from linux-mod.
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calculate_update_modules() {
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if [ -x /sbin/update-modules ] && \
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grep -v -e "^#" -e "^$" "${D}"/etc/modules.d/* >/dev/null 2>&1; then
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ebegin "Updating modules.conf"
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/sbin/update-modules
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eend $?
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elif [ -x /sbin/update-modules ] && \
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grep -v -e "^#" -e "^$" "${D}"/etc/modules.d/* >/dev/null 2>&1; then
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ebegin "Updating modules.conf"
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/sbin/update-modules
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eend $?
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fi
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}
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# FUNCTION: calculate_update_depmod
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# DESCRIPTION:
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# It updates the modules.dep file for the current kernel.
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# Get from linux-mod.
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calculate_update_depmod() {
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# if we haven't determined the version yet, we need too.
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get_version;
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ebegin "Updating module dependencies for ${KV_FULL}"
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if [ -r "${KV_OUT_DIR}"/System.map ]
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then
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depmod -ae -F "${KV_OUT_DIR}"/System.map -b "${ROOT}" -r ${KV_FULL}
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eend $?
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else
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ewarn
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ewarn "${KV_OUT_DIR}/System.map not found."
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ewarn "You must manually update the kernel module dependencies using depmod."
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eend 1
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ewarn
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fi
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}
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# FUNCTION: calculate_clean_firmwares
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# DESCRIPTION:
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# Workaround kernel issue with collising
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# firmwares across different kernel versions
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calculate_clean_firmwares() {
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for fwfile in `find "${ROOT}/tmp/firmware" -type f`; do
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sysfile="${ROOT}/lib/${fwfile/${ROOT}/tmp/}"
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if [ -f "${sysfile}" ]; then
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#ewarn "Removing duplicated: ${sysfile}"
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rm ${sysfile} || die "failed to remove ${sysfile}"
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fi
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done
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}
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