void-packages/srcpkgs/initramfs-tools/files/hook-functions
Juan RP a214baad07 initramfs-tools: sync with Debian 0.94.4.
Now the version also specifies what Debian version the code uses, i.e
"0.99.debian0.94.4".

--HG--
rename : srcpkgs/initramfs-tools/files/scripts/init-premount/blacklist => srcpkgs/initramfs-tools/files/scripts/init-top/blacklist
2010-05-17 17:43:30 +02:00

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# -*- 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
grep '^[^#]' ${1} | while read module args; do
[ -n "$module" ] || continue
force_load "${module}" "${args}"
done
}
# Add dependent modules + eventual firmware
manual_add_modules()
{
local mam_x firmwares firmware
for mam_x in $(modprobe --set-version="${version}" --ignore-install \
--quiet --show-depends "${1}" | 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/${firmware}" ] \
|| [ -e "${DESTDIR}/lib/firmware/${version}/${firmware}" ]; then
continue
fi
# Only print warning for missing fw of loaded module
# or forced loaded module
if [ ! -e "/lib/firmware/${firmware}" ] \
&& [ ! -e "/lib/firmware/${version}/${firmware}" ] ; then
# Only warn about missing firmware if
# /proc/modules exists
if [ ! -e /proc/modules ] ; then
continue
fi
if grep -q "^$(basename "${mam_x}" .ko)[[:space:]]" \
/proc/modules \
|| grep -q "^$(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
if [ -e "/lib/firmware/${version}/${firmware}" ]; then
copy_exec "/lib/firmware/${version}/${firmware}"
else
copy_exec "/lib/firmware/${firmware}"
fi
if [ "${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
if ! command -v ldd >/dev/null 2>&1 ; then
echo "WARNING: no ldd around - install glibc package."
exit 1
fi
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,
# sse2, vfp or neon.
nonoptlib=$(echo "${x}" | sed -e 's#/lib/\(tls\|i686\|sse2\|neon\|vfp\).*/\(lib.*\)#/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
local exclude
local dir="$1"
shift
if ! [ -d "${MODULESDIR}/${dir}" ]; then
return;
fi
if [ "${verbose}" = "y" ]; then
echo "Copying module directory ${dir}"
if [ $# -ge 1 ]; then
echo "(excluding $*)"
fi
fi
while [ $# -ge 1 ]; do
exclude="$exclude -name $1 -prune -o "
shift
done
for x_mod in $(find "${MODULESDIR}/${dir}" ${exclude} -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 ${device_path}/driver/module)"
if [ -e "$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
# require mounted sysfs
if [ ! -d /sys/devices/ ]; then
echo "mkinitramfs: MODULES dep requires mounted sysfs on /sys"
exit 1
fi
# 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/"$(blkid -o value -s UUID ${root}) 2>/dev/null
fi
root="$(readlink -f ${root})"
# find out real rootfs on auto type
if [ "${FSTYPE}" = "auto" ]; then
eval "$(blkid -s TYPE -o value ${root})"
fi
# check that fstype rootfs recognition
if [ "${FSTYPE}" = "unknown" ]; then
FSTYPE=$(blkid -o value -s TYPE "${root}")
if [ -z "${FSTYPE}" ]; then
echo "mkinitramfs: unknown fstype on root ${root}"
echo "mkinitramfs: workaround is MODULES=most"
echo "Error please report bug on initramfs-tools"
exit 1
fi
fi
# Add rootfs
manual_add_modules "${FSTYPE}"
# lvm or luks root
if [ "${root#/dev/mapper/}" != "${root}" ] \
|| [ "${root#/dev/dm-}" != "${root}" ]; then
minor=$((0x$(stat --format "%T" ${root}) % 256))
block=$(ls -1 /sys/block/dm-${minor}/slaves | head -n 1)
# lvm on luks or luks on lvm, possibly lvm snapshots
while [ "${block#dm-}" != "${block}" ]; do
block=$(ls -1 /sys/block/${block}/slaves | head -n 1)
done
# lvm on md or luks on md
if [ "${block#md}" != "${block}" ]; then
block=$(awk "/^${block}/{print substr(\$5, 1, 4); exit}" \
/proc/mdstat)
fi
# luks or lvm on cciss or ida
if [ "${block#cciss}" != "${block}" ] \
|| [ "${block#ida}" != "${block}" ]; then
block="${block%p*}"
else
block=${block%%[0-9]*}
fi
# md root new naming scheme /dev/md/X
elif [ "${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 "/^${root}/{print substr(\$5, 1, 3); exit}" \
/proc/mdstat)
# cciss device
elif [ "${root#/dev/cciss/}" != "${root}" ]; then
block=${root#/dev/cciss/*}
block="cciss!${block%p*}"
# ida device
elif [ "${root#/dev/ida/}" != "${root}" ]; then
block=${root#/dev/ida/*}
block="ida!${block%p*}"
# loop root /dev/loopX
elif [ "${root#/dev/loop}" != "${root}" ]; then
root=${root#/dev/}
block=$(losetup -a \
| awk "/${root}/{print substr(\$3, 7, 3); exit}")
# Xen virtual device /dev/xvdX
elif [ "${root#/dev/xvd}" != "${root}" ]; then
block=${root#/dev/}
# Xen has a mode where only the individual partitions are
# registered with the kernel as well as the usual full disk
# with partition table scheme.
if [ ! -e /sys/block/${block} ] ; then
block=${block%%[0-9]*}
fi
# mmc root /dev/mmcblkXpX
elif [ "${root#/dev/mmcblk}" != "${root}" ]; then
block=${root#/dev/}
block=${block%%p[0-9]*}
# classical root device
else
block=${root#/dev/}
block=${block%%[0-9]*}
fi
# Error out if /sys lack block dev
if [ -z "${block}" ] || [ ! -e /sys/block/${block} ]; then
echo "mkinitramfs: for root ${root} missing ${block} /sys/block/ entry"
echo "mkinitramfs: workaround is MODULES=most"
echo "mkinitramfs: Error please report the bug"
exit 1
fi
# sys walk ATA
root_dev_path=$(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 ${root_dev_path}
manual_add_modules ide-gd_mod
# FIXME: remove post Squeeze
manual_add_modules ide-disk
manual_add_modules ide-cd
fi
if [ -e /sys/bus/scsi/devices/ ]; then
manual_add_modules sd_mod
fi
if [ -e /sys/bus/mmc/devices/ ]; then
manual_add_modules mmc_block
fi
if [ -e /sys/bus/i2o/devices/ ]; then
force_load i2o_block
force_load i2o_config
fi
if [ -e /sys/bus/ps3_system_bus/ ]; then
for x in ps3disk ps3rom ps3-gelic ps3_sys_manager; do
manual_add_modules "${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 "$1" in
base)
for x in ehci-hcd ohci-hcd uhci-hcd usbhid btrfs ext2 \
ext3 ext4 ext4dev isofs jfs nfs reiserfs udf xfs af_packet \
atkbd i8042 virtio_pci; do
manual_add_modules "${x}"
done
;;
kms)
for x in fbcon intel_agp radeon i915; do
manual_add_modules "${x}"
done
;;
net)
copy_modules_dir kernel/drivers/net \
appletalk arcnet bonding can hamradio irda pcmcia \
tokenring usb wan wimax wireless
;;
ide)
copy_modules_dir kernel/drivers/ide
;;
mmc)
copy_modules_dir kernel/drivers/mmc
;;
scsi)
copy_modules_dir kernel/drivers/scsi
for x in mptfc mptsas mptscsih mptspi zfcp; do
manual_add_modules "${x}"
done
;;
ata)
copy_modules_dir kernel/drivers/ata
;;
block)
copy_modules_dir kernel/drivers/block
;;
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 "${x}"
done
;;
dasd)
for x in dasd_diag_mod dasd_eckd_mod dasd_fba_mod; do
manual_add_modules "${x}"
done
;;
usb_storage)
copy_modules_dir kernel/drivers/usb/storage
;;
*)
auto_add_modules base
auto_add_modules kms
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
auto_add_modules usb_storage
;;
esac
}
# mkinitramfs help message
usage()
{
cat >&2 << EOF
Usage: ${0} [OPTION]... -o outfile [version]
Options:
-c compress Override COMPRESS setting in initramfs.conf.
-d confdir Specify an alternative configuration directory.
-k Keep temporary directory used to make the image.
-o outfile Write to outfile.
-r root Override ROOT setting in initramfs.conf.
See mkinitramfs(8) for further details.
EOF
exit 1
}
# cache boot scripts order
cache_run_scripts()
{
DESTDIR=${1}
scriptdir=${2}
initdir=${DESTDIR}${scriptdir}
[ ! -d ${initdir} ] && return
runlist=$(get_prereq_pairs | tsort)
for crs_x in ${runlist}; do
[ -f ${initdir}/${crs_x} ] || continue
echo "${scriptdir}/${crs_x}" >> ${initdir}/ORDER
echo "[ -e /conf/param.conf ] && . /conf/param.conf" >> ${initdir}/ORDER
done
}
compare_versions()
{
local curv="$1" minv="$2"
xbps-uhelper cmpver $curv $minv
if [ $? -eq 0 ] || [ $? -eq 1 ]; then
return 0
else
return 1
fi
}
# minimal supported kernel version
check_minkver()
{
local curversion initdir ARCH minversion cm_x tmp
curversion="${1}"
initdir="${2}"
if [ -z "${initdir}" ]; then
ARCH=$(uname -m)
case ${ARCH} in
ia64|hppa)
minversion="2.6.15"
;;
*)
minversion="2.6.12"
;;
esac
if ! compare_versions "${curversion}" "${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 "${tmp}" ]; then
continue
elif ! compare_versions "${curversion}" "${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
}