void-packages/srcpkgs/initramfs-tools/files/hook-functions
2011-03-10 18:03:28 +01:00

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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 kmod firmware
for kmod in $(modprobe --set-version="${version}" --ignore-install \
--quiet --show-depends "${1}" | awk '/^insmod/ { print $2 }'); do
# Prune duplicates
if [ -e "${DESTDIR}/${kmod}" ]; then
continue
fi
mkdir -p "${DESTDIR}/$(dirname "${kmod}")"
ln -s "${kmod}" "${DESTDIR}/$(dirname "${kmod}")"
if [ "${verbose}" = "y" ]; then
echo "Adding module ${kmod}"
fi
# Add required firmware
for firmware in $(modinfo -F firmware "${kmod}"); 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 "^$(basename "${kmod}" .ko)[[:space:]]" \
/proc/modules \
|| grep -q "^$(basename "${kmod}" .ko)" \
"${CONFDIR}/modules"; then
echo "W: Possible missing firmware /lib/firmware/${firmware} for module $(basename ${kmod} .ko)" >&2
fi
continue
fi
if [ ! -e "${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 = file to copy to ramdisk
# $2 (optional) Name for the file on the ramdisk
# Location of the image dir is assumed to be $DESTDIR
# We never overwrite the target if it exists.
copy_exec() {
local src target x nonoptlib
local libname dirname
src="${1}"
target="${2:-$1}"
[ -f "${src}" ] || return 1
if [ -d "${DESTDIR}/${target}" ]; then
# check if already copied
[ -e "${DESTDIR}/$target/${src##*/}" ] && return 0
else
[ -e "${DESTDIR}/$target" ] && return 0
#FIXME: inst_dir
mkdir -p "${DESTDIR}/${target%/*}"
fi
[ "${verbose}" = "y" ] && echo "Adding binary ${src}"
ln -s "${src}" "${DESTDIR}/${target}"
# Copy the dependant libraries
for x in $(ldd ${src} 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}")
# FIXME inst_lib
mkdir -p "${DESTDIR}/${dirname}"
if [ ! -e "${DESTDIR}/${dirname}/${libname}" ]; then
ln -s "${x}" "${DESTDIR}/${dirname}"
[ "${verbose}" = "y" ] && echo "Adding library ${x}" || true
fi
done
}
# Copy entire subtrees to the initramfs
copy_modules_dir()
{
local kmod 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 kmod in $(find "${MODULESDIR}/${dir}" ${exclude:-} -name '*.ko' -print); do
manual_add_modules $(basename ${kmod} .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" >&2
exit 1
fi
# findout root block device + fstype
eval "$(mount | awk '/\/dev\// {if ($3 == "/") {print "root=" $1 "\nFSTYPE=" $5; exit}}')"
# On failure fallback to /proc/mounts if readable
if [ -z "$root" ] && [ -r /proc/mounts ]; then
eval "$(awk '!/^rootfs / {if ($2 == "/") {print "root=" $1 "\nFSTYPE=" $3; exit}}' /proc/mounts)"
fi
# recheck root device
if [ -z "$root" ]; then
echo "mkinitramfs: failed to determine root device" >&2
echo "mkinitramfs: workaround is MODULES=most" >&2
echo "Error please report bug on initramfs-tools" >&2
echo "Include the output of 'mount' and 'cat /proc/mounts'" >&2
exit 1
fi
# handle ubifs and return since ubifs root is a char device but
# most of the commands below only work with block devices.
if [ "${FSTYPE}" = "ubifs" ]; then
manual_add_modules "${FSTYPE}"
# add some modules required by ubifs on which it doesn's depend
manual_add_modules deflate
manual_add_modules zlib
manual_add_modules lzo
return
fi
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 ${root}" >&2
echo "mkinitramfs: workaround is MODULES=most" >&2
echo "Error please report bug on initramfs-tools" >&2
exit 1
fi
fi
# Add rootfs
manual_add_modules "${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}" != "${block}" ]; then
block=$(sed -ne 's/multipath/[/' -e 's/linear/[/' -e 's/raid[0-9][0-9]*/[/' -e 's/\([hs]d[a-z][a-z]*\)[0-9][0-9]*/\1/g' -e '/^'${block}' :/s/^[^[]*\[ \([^\[]*\)\[.*$/\1/p' </proc/mdstat)
fi
# luks or lvm on cciss or ida
if [ "${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/}
# strip partion number
root=${root%%p[0-9]*}
# drop the partition number only for sdX and hdX devices
# and keep it for other devices like loop#, dm-# devices
block=$(sed -ne 's/multipath/[/' -e 's/linear/[/' -e 's/raid[0-9][0-9]*/[/' -e 's/\([hs]d[a-z][a-z]*\)[0-9][0-9]*/\1/g' -e '/^md'$root' :/s/^[^[]*\[ \([^\[]*\)\[.*$/\1/p' </proc/mdstat)
# md root /dev/mdX
elif [ "${root#/dev/md}" != "${root}" ]; then
root=${root#/dev/md}
# strip partion number
root=${root%%p[0-9]*}
# drop the partition number only for sdX and hdX devices
# and keep it for other devices like loop#, dm-# devices
block=$(sed -ne 's/multipath/[/' -e 's/linear/[/' -e 's/raid[0-9][0-9]*/[/' -e 's/\([hs]d[a-z][a-z]*\)[0-9][0-9]*/\1/g' -e '/^md'$root' :/s/^[^[]*\[ \([^\[]*\)\[.*$/\1/p' </proc/mdstat)
# cciss device
elif [ "${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=${block%%p[0-9]*}
# DAC960 - good old mylex raid - root dev format /dev/rd/cXdXpX
elif [ "${root#/dev/rd/c}" != "${root}" ]; then
block="rd!c${root#/dev/rd/c}"
block=${block%%p[0-9]*}
# etherd device
elif [ "${root#/dev/etherd/}" != "${root}" ]; then
block=${root#/dev/etherd/*}
block="etherd!${block%p*}"
# classical root device
else
block=${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 ${block} /sys/block/ entry" >&2
echo "mkinitramfs: workaround is MODULES=most" >&2
echo "mkinitramfs: Error please report the bug" >&2
exit 1
fi
# sys walk ATA
root_dev_path=$(readlink -f /sys/block/${block}/device)
sys_walk_mod_add ${root_dev_path}
# catch old-style IDE
if [ -d "${DESTDIR}/lib/modules/${version}/kernel/drivers/ide" ]; then
sys_walk_modalias ${root_dev_path}
manual_add_modules ide-gd_mod
fi
if [ -d "${DESTDIR}/lib/modules/${version}/kernel/drivers/scsi" ]; then
manual_add_modules sd_mod
fi
if [ -e /sys/bus/mmc/devices/ ]; then
manual_add_modules mmc_block
fi
if [ -e /sys/bus/virtio ] ; then
manual_add_modules virtio_pci
fi
if [ -e /sys/bus/i2o/devices/ ]; then
force_load i2o_block
force_load i2o_config
fi
if [ -e /sys/bus/ps3_system_bus/ ]; then
for x in ps3disk ps3rom ps3-gelic ps3_sys_manager; do
manual_add_modules "${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 xhci hid-apple \
hid-cherry hid-logitech hid-microsoft \
btrfs ext2 ext3 ext4 ext4dev isofs jfs nfs reiserfs udf xfs \
af_packet atkbd i8042 virtio_pci; 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
;;
ubi)
for x in deflate zlib lzo ubi ubifs; do
manual_add_modules "${x}"
done
;;
ieee1394)
for x in ohci1394 sbp2; do
manual_add_modules "${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 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
}
# 'depmod' only looks at symbol dependencies; there is no way for
# modules to declare explicit dependencies through module information,
# so dependencies on e.g. crypto providers are hidden. Until this is
# fixed, we need to handle those hidden dependencies.
hidden_dep_add_modules()
{
for dep in "lib/libcrc32c crc32c"; do
set -- $dep
if [ -f "${DESTDIR}/lib/modules/${version}/kernel/$1.ko" ]; then
manual_add_modules "$2"
fi
done
}
# 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"
local cmpver_cmd
if ! command -v xbps-uhelper.static >/dev/null 2>&1; then
cmpver_cmd=xbps-uhelper
else
cmpver_cmd=xbps-uhelper.static
fi
${cmpver_cmd} cmpver $curv $minv
if [ $? -eq 0 ] || [ $? -eq 1 ]; then
return 0
fi
return 1
}
# minimal supported kernel version
check_minkver()
{
local curversion initdir ARCH minversion cm_x tmp
curversion="${1:-}"
initdir="${2:-}"
if [ -z "${initdir}" ]; then
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
}