diff options
Diffstat (limited to 'hook-functions')
| -rw-r--r-- | hook-functions | 457 |
1 files changed, 457 insertions, 0 deletions
diff --git a/hook-functions b/hook-functions new file mode 100644 index 0000000..e9f2368 --- /dev/null +++ b/hook-functions @@ -0,0 +1,457 @@ +# -*- shell-script -*- + +catenate_cpiogz() { + # Sanity check + if [ ! -e "${1}" ]; then + echo "W:catenate_cpiogz: arg1='${1}' does not exist." >&2 + return + fi + + cat "${1}" >>"${__TMPCPIOGZ}" +} + +force_load() +{ + manual_add_modules ${@} + echo "${@}" >>"${DESTDIR}/conf/modules" +} + +# Takes a file containing a list of modules to be added as an +# argument, figures out dependancies, and adds them. +# +# Input file syntax: +# +# # comment +# modprobe_module_name [args ...] +# [...] +# +add_modules_from_file() +{ + # Sanity check + if [ ! -e "${1}" ]; then + echo "W:add_modules_from_file: arg1='${1}' does not exist." >&2 + return + fi + + sed -e '/^#/d' ${1} | while read module rest; do + force_load "${module}" "${rest}" + done +} + +# Add dependent modules + eventual firmware +manual_add_modules() +{ + local mam_x firmwares firmware + + for mam_x in $(modprobe --set-version="${version}" --ignore-install \ + --show-depends "${1}" 2>/dev/null | awk '/^insmod/ { print $2 }'); do + # Prune duplicates + if [ -e "${DESTDIR}/${mam_x}" ]; then + continue + fi + + mkdir -p "${DESTDIR}/$(dirname "${mam_x}")" + ln -s "${mam_x}" "${DESTDIR}/$(dirname "${mam_x}")" + if [ "${verbose}" = "y" ]; then + echo "Adding module ${mam_x}" + fi + + # Add firmware files if necessary + firmwares=$(modinfo -F firmware "${mam_x}") + if [ -z "${firmwares}" ]; then + continue + fi + for firmware in $firmwares; do + if [ -e "${DESTDIR}/lib/firmware/${firmware}" ]; then + continue + fi + + # Only print warning for missing fw of loaded module + # or forced loaded module + if [ ! -e "/lib/firmware/${firmware}" ]; then + if grep -q "^$(basename "${mam_x}" .ko)" \ + /proc/modules \ + || grep -q "^$(basename "${mam_x}" .ko)" \ + "${CONFDIR}/modules"; then + echo "W: Possible missing firmware /lib/firmware/${firmware} for module $(basename ${mam_x} .ko)" >&2 + fi + continue + fi + + if [ ! -e "${DESTDIR}/lib/udev/firmware.agent" ] \ + && [ -e "/lib/udev/firmware.agent" ]; then + copy_exec /lib/udev/firmware.agent + fi + + copy_exec "/lib/firmware/${firmware}" + if [ "${verbose}" = "y" ]; then + echo "Adding firmware ${firmware}" + fi + done + done +} + +# $1 is the source path (e.g. /usr/bin/time) +# $2 is the relative destination (e.g. /usr or /usr/time) +# +# The destination is interpreted in the same way "cp" would, meaning +# (assuming /bin is a directory): +# +# "copy_exec /usr/bin/time /bin" -> /bin/time +# "copy_exec /usr/bin/time /bin/mytime" -> /bin/mytime +# +# If $2 is left out, the same destination path as for the source arg will +# be used and directories will be created as needed, so: +# +# "copy_exec /usr/bin/time" -> /usr/bin/time +# +copy_exec() { + local source target destination final_destination x nonoptlib + local libname dirname + + source="${1}" + if [ -n "${2}" ]; then + target="${2}" + else + if [ ! -e "${DESTDIR}/$(dirname "${1}")" ]; then + mkdir -p "${DESTDIR}/$(dirname "${1}")" + fi + target="${1}" + fi + + if [ -d "${DESTDIR}/${target}" ]; then + destination="${target}/$(basename "${source}")" + else + destination="${target}" + fi + final_destination="${DESTDIR}/${destination}" + + if [ -L "$final_destination" ]; then + if [ $(readlink "${final_destination}") != "${source}" ]; then + echo "W:copy_exec: Not copying ${source} to \$DESTDIR${destination}, which is already a copy of $(readlink ${final_destination})" >&2 + return + fi + else + ln -s ${source} ${DESTDIR}/${destination} + if [ "${verbose}" = "y" ]; then + echo "Adding binary ${source}" + fi + fi + + # Copy the dependant libraries + for x in $(ldd ${source} 2>/dev/null | sed -e ' + /\//!d; + /linux-gate/d; + /=>/ {s/.*=>[[:blank:]]*\([^[:blank:]]*\).*/\1/}; + s/[[:blank:]]*\([^[:blank:]]*\) (.*)/\1/' 2>/dev/null); do + + # Try to use non-optimised libraries where possible. + # We assume that all HWCAP libraries will be in tls. + nonoptlib=$(echo "${x}" | sed -e 's#/lib/\(tls\|i686\).*/\(lib.*\)#/lib/\2#') + + if [ -e "${nonoptlib}" ]; then + x="${nonoptlib}" + fi + + libname=$(basename "${x}") + dirname=$(dirname "${x}") + + mkdir -p "${DESTDIR}/${dirname}" + if [ ! -e "${DESTDIR}/${dirname}/${libname}" ]; then + ln -s "${x}" "${DESTDIR}/${dirname}" + if [ "${verbose}" = "y" ]; then + echo "Adding library ${x}" + fi + fi + done +} + +# Copy entire subtrees to the initramfs +copy_modules_dir() +{ + local x_mod + + if ! [ -d "${MODULESDIR}/${1}" ]; then + return; + fi + if [ "${verbose}" = "y" ]; then + echo "Copying module directory ${1}" + fi + for x_mod in $(find "${MODULESDIR}/${1}" -name '*.ko' -print); do + manual_add_modules $(basename ${x_mod} .ko) + done +} + +# walk /sys for relevant modules +sys_walk_mod_add() +{ + local driver_path module + device_path="$1" + + while [ "${device_path}" != "/sys" ]; do + sys_walk_modalias ${device_path} + driver_path="$(readlink -f ${device_path}/driver)" + if [ -e "$driver_path" ]; then + module="$(basename $(readlink -f $driver_path))" + if [ -n "${module}" ]; then + force_load "${module}" + fi + fi + device_path="$(dirname ${device_path})" + done +} + +# walk /sys for relevant modalias +sys_walk_modalias() +{ + local device_path modalias + + device_path="$(dirname "${1}")" + device_path="$(dirname "${device_path}")" + if [ -e "${device_path}/modalias" ]; then + modalias=$(cat "${device_path}/modalias") + fi + + if [ -n "${modalias}" ]; then + force_load "${modalias}" + fi +} + +# find and only copy root relevant modules +dep_add_modules() +{ + local block minor root FSTYPE root_dev_path x + + # findout root block device + fstype + eval "$(mount | awk '/\/dev\// {if ($3 == "/") {print "root=" $1 "\nFSTYPE=" $5; exit}}')" + if [ "${root}" = "/dev/root" ] ; then + root="/dev/disk/by-uuid/"$(/lib/udev/vol_id --uuid ${root}) 2>/dev/null + fi + root="$(readlink -f ${root})" + + # find out real rootfs on auto type + if [ "${FSTYPE}" = "auto" ]; then + eval "$(/usr/lib/klibc/bin/fstype ${root})" + fi + + # check that fstype rootfs recognition + if [ "${FSTYPE}" = "unknown" ]; then + echo "mkinitramfs: unknown fstype on root ${root}" + echo "mkinitramfs: workaround is MODULES=most" + echo "mkinitramfs: Error please report bug on initramfs-tools" + exit 1 + fi + + # Add rootfs + manual_add_modules "${FSTYPE}" + + # lvm or luks root + if [ "${root#/dev/mapper/}" != "${root}" ]; then + minor=$((0x$(stat --format "%T" ${root}) % 256)) + block=$(ls -1 /sys/block/dm-${minor}/slaves | head -n 1) + # lvm on luks or luks on lvm + if [ "${block#dm-}" != "${block}" ]; then + block=$(ls -1 /sys/block/${block}/slaves | head -n 1) + fi + # lvm on md or luks on md + if [ "${block#md}" != "${block}" ]; then + block=$(awk "/^${block}/{print substr(\$5, 1, 4); exit}" \ + /proc/mdstat) + fi + block=${block%[0-9]*} + # md root new naming scheme /dev/md/X + elif [ "${root#/dev/md/}" != "${root}" ]; then + root=${root#/dev/md/} + block=$(awk "/^md${root}/{print substr(\$5, 1, 3); exit}" \ + /proc/mdstat) + # md root /dev/mdX + elif [ "${root#/dev/md}" != "${root}" ]; then + root=${root#/dev/} + block=$(awk "/^${root}/{print substr(\$5, 1, 3); exit}" \ + /proc/mdstat) + # classical root device + else + block=${root#/dev/} + block=${block%[0-9]*} + fi + + # Error out if /sys lack block dev + if [ -z "${block}" ] || [ ! -e /sys/block/${block} ]; then + echo "mkinitramfs: missing ${block} root ${root} /sys entry" + echo "mkinitramfs: workaround is MODULES=most" + echo "mkinitramfs: Error please report the bug" + exit 1 + fi + + # sys walk ATA + root_dev_path=$(readlink -f /sys/block/${block}/device) + sys_walk_mod_add ${root_dev_path} + + # catch old-style IDE + if [ -e /sys/bus/ide/devices/ ]; then + sys_walk_modalias ${root_dev_path} + manual_add_modules ide-disk + manual_add_modules ide-cd + fi + + if [ -e /sys/bus/scsi/devices/ ]; then + manual_add_modules sd_mod + fi + + if [ -e /sys/bus/i2o/devices/ ]; then + force_load i2o_block + force_load i2o_config + fi + + if [ -e /sys/bus/ps3_system_bus/ ]; then + for x in ps3disk ps3rom ps3-gelic ps3_sys_manager; do + manual_add_modules "${x}" + done + fi + + if [ -e /sys/bus/vio/ ]; then + for x in sunvnet sunvdc; do + manual_add_modules "${x}" + done + fi +} + + +# The modules "most" classes added per default to the initramfs +auto_add_modules() +{ + case "$1" in + base) + for x in ehci-hcd ohci-hcd uhci-hcd usbhid usb-storage ext2 \ + ext3 ext4 ext4dev isofs jfs nfs reiserfs udf xfs af_packet \ + atkbd i8042 virtio_pci; do + manual_add_modules "${x}" + done + ;; + net) + for x in 3c59x 8139cp 8139too 8390 atl1 b44 bmac \ + bnx2 cxgb3 defxx dl2k e100 e1000 e1000e ehea epic100 \ + ep93xx_eth eql fealnx famachi forcedeth gelic_net \ + hp100 igb ipg mace mv643xx_eth myri10ge \ + natsemi ne2k-pci netconsole niu ns83820 pcnet32 qla3xxx \ + r8169 s2io sis900 skge sky2 slhc smc911x starfire \ + sundance sungem sungem_phy sunhme sunvnet tg3 tlan de2104x \ + de4x5 dmfe tulip winbond-840 xircom_cb xircom_tulip_cb \ + typhon via-rhine via-velocity yellowfin; do + manual_add_modules "${x}" + done + ;; + ide) + copy_modules_dir kernel/drivers/ide + ;; + mmc) + copy_modules_dir kernel/drivers/mmc + ;; + scsi) + copy_modules_dir kernel/drivers/scsi + for x in mptfc mptsas mptscsih mptspi zfcp; do + manual_add_modules "${x}" + done + ;; + ata) + copy_modules_dir kernel/drivers/ata + ;; + block) + copy_modules_dir kernel/drivers/block + for x in dasd_diag_mod; do + manual_add_modules "${x}" + done + ;; + # FIXME: can be removed after Lenny release + ieee1394) + for x in ohci1394 sbp2; do + manual_add_modules "${x}" + done + ;; + firewire) + for x in firewire-ohci firewire-sbp2; do + manual_add_modules "${x}" + done + ;; + i2o) + for x in i2o_block; do + manual_add_modules "${x}" + done + ;; + dasd) + for x in dasd_eckd_mod dasd_fba_mod; do + manual_add_modules "${x}" + done + ;; + *) + auto_add_modules base + auto_add_modules net + auto_add_modules ide + auto_add_modules scsi + auto_add_modules block + auto_add_modules ata + auto_add_modules i2o + auto_add_modules dasd + auto_add_modules ieee1394 + auto_add_modules firewire + auto_add_modules mmc + ;; + esac +} + +usage() +{ + cat >&2 << EOF + +Usage: ${0} [OPTION]... -o outfile [version] + +Options: + -d confdir Specify an alternative configuration directory. + -k Keep temporary directory used to make the image. + -o outfile Write to outfile. + -r root Override ROOT setting in mkinitrd.conf. + +See mkinitramfs(8) for further details. +EOF + exit 1 + +} + +# minimal supported kernel version +check_minkver() +{ + local curversion initdir DPKG_ARCH minversion cm_x tmp + + curversion="${1}" + initdir="${2}" + if [ -z "${initdir}" ]; then + DPKG_ARCH=$(dpkg --print-installation-architecture) + case ${DPKG_ARCH} in + ia64|hppa) + minversion="2.6.15" + ;; + *) + minversion="2.6.12" + ;; + esac + if dpkg --compare-versions "${curversion}" lt "${minversion}"; then + echo "W: kernel ${curversion} too old for initramfs on ${DPKG_ARCH}" >&2 + echo "W: not generating requested initramfs for kernel ${curversion}" >&2 + exit 2 + fi + return 0 + fi + set_initlist + for cm_x in ${initlist}; do + # sed: keep last line starting with MINKVER=, + # remove MINKVER= and trailing space + minver=$(sed '/^MINKVER=/!d;$!d;s/^MINKVER=//;s/[[:space:]]*$//' "${initdir}/${cm_x}") + if [ -z "${tmp}" ]; then + continue + elif dpkg --compare-versions "${curversion}" lt "${minver}"; then + echo "W: ${cm_x} hook script requires at least kernel version ${minver}" >&2 + echo "W: not generating requested initramfs for kernel ${curversion}" >&2 + exit 2 + fi + done +} |