Current File : //usr/share/initramfs-tools/hook-functions
# -*- 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}"
}
prepend_earlyinitramfs() {
# Sanity check
if [ ! -e "${1}" ]; then
echo "W: prepend_earlyinitramfs: arg1='${1}' does not exist." >&2
return
fi
cat "${1}" >>"${__TMPEARLYCPIO}"
}
# force_load module [args...]
force_load()
{
manual_add_modules "$1"
echo "${@}" >>"${DESTDIR}/conf/modules"
}
# Takes a file containing a list of modules to be added as an
# argument, figures out dependancies, and adds them.
#
# Input file syntax:
#
# # comment
# modprobe_module_name [args ...]
# [...]
#
add_modules_from_file()
{
# Sanity check
if [ ! -e "${1}" ]; then
echo "W: add_modules_from_file: arg1='${1}' does not exist." >&2
return
fi
grep '^[^#]' "${1}" | while read -r module args; do
[ -n "$module" ] || continue
force_load "${module}" "${args}"
done
}
# Locate a firmware file with the given name and copy it into DESTDIR, unless
# DESTDIR already contains such a file.
# Returns an error if no such firmware file can be located and DESTDIR doesn't
# already contain any matching file. (It is up to the caller to figure out
# whether a warning should be printed in that case.)
add_firmware()
{
local ext firmware found_fwloc fwloc path
firmware="${1}"
for path in "updates/${version?}" "updates" "${version}" ""; do
for ext in ".xz" ".zst" ""; do
fwloc="/lib/firmware${path:+/}${path}/${firmware}${ext}"
if [ -e "${DESTDIR}${fwloc}" ]; then
# DESTDIR already contains a matching firmware file.
return 0
fi
if [ -z "${found_fwloc}" ] && [ -e "${fwloc}" ]; then
found_fwloc="$fwloc"
fi
done
done
if [ -z "${found_fwloc}" ]; then
# We can't figure out where to get that firmware from.
return 1
fi
copy_file firmware "${found_fwloc}"
}
# Add dependent modules + eventual firmware
manual_add_modules()
{
local dracut_verbose
if [ $# -eq 0 ]; then
return
fi
if [ "${verbose?}" = "y" ]; then
dracut_verbose=-v
fi
/usr/lib/dracut/dracut-install -D "$DESTDIR" --kerneldir "/lib/modules/${version?}" \
--firmwaredirs "/lib/firmware/updates/${version?}:/lib/firmware/updates:/lib/firmware/${version?}:/lib/firmware" \
${dracut_verbose-} -o -m "$@"
}
# manual_add_modules() takes care of adding firmware for things that were built
# as modules; but drivers can also be built into the kernel itself. To cover
# that case, we have to look at modules.builtin.modinfo instead.
# This file is generated by the kernel's build process since commit 898490c010b5
# ("moduleparam: Save information about built-in modules in separate file"),
# which was added in Linux 5.2.
add_builtin_firmware()
{
local builtin_modinfo_path builtin_modname firmware
builtin_modinfo_path="/lib/modules/${version?}/modules.builtin.modinfo"
if [ ! -e "$builtin_modinfo_path" ]; then
if linux-version compare "${version}" ge 5.2; then
echo "W: Can't find modules.builtin.modinfo (for locating built-in drivers' firmware, supported in Linux >=5.2)" >&2
fi
return
fi
tr '\0' '\n' < "$builtin_modinfo_path" | grep -E '^[^=]*\.firmware=' | sed -n 's/\.firmware=/\t/p' | while read -r builtin_modname firmware; do
if ! add_firmware "$firmware"; then
echo "W: Possible missing firmware /lib/firmware/${firmware} for built-in driver ${builtin_modname}" >&2
fi
done
}
# $1 = file type (for logging)
# $2 = file to copy to initramfs
# $3 (optional) Name for the file on the initramfs
# Location of the image dir is assumed to be $DESTDIR
# If the target exists, we leave it and return 1.
# On any other error, we return >1.
copy_file() {
local type src target link_target
type="${1}"
src="${2}"
target="${3:-$2}"
[ -f "${src}" ] || return 2
if [ -d "${DESTDIR}/${target}" ]; then
target="${target}/${src##*/}"
fi
# Canonicalise usr-merged target directories
case "${target}" in
/bin/* | /lib* | /sbin/*) target="/usr${target}" ;;
esac
# check if already copied
[ -e "${DESTDIR}/${target}" ] && return 1
mkdir -p "${DESTDIR}/${target%/*}"
if [ -h "${src}" ]; then
# We don't need to replicate a chain of links completely;
# just link directly to the ultimate target
link_target="$(readlink -f "${src}")" || return $(($? + 1))
# Update source for the copy
src="${link_target}"
# Canonicalise usr-merged target directories
case "${link_target}" in
/bin/* | /lib* | /sbin/*) link_target="/usr${link_target}" ;;
esac
if [ "${link_target}" != "${target}" ]; then
[ "${verbose?}" = "y" ] && echo "Adding ${type}-link ${target}"
# Create a relative link so it always points
# to the right place
ln -rs "${DESTDIR}/${link_target}" "${DESTDIR}/${target}"
fi
# Copy the link target if it doesn't already exist
target="${link_target}"
[ -e "${DESTDIR}/${target}" ] && return 0
mkdir -p "${DESTDIR}/${target%/*}"
fi
[ "${verbose}" = "y" ] && echo "Adding ${type} ${src}"
cp -pP "${src}" "${DESTDIR}/${target}" || return $(($? + 1))
}
# $1 = executable/shared library to copy to initramfs, with dependencies
# $2 (optional) Name for the file on the initramfs
# Location of the image dir is assumed to be $DESTDIR
# We never overwrite the target if it exists.
copy_exec() {
local src target x nonoptlib ret
src="${1}"
target="${2:-$1}"
copy_file binary "${src}" "${target}" || return $(($? - 1))
# Copy the dependant libraries
for x in $(env --unset=LD_PRELOAD ldd "${src}" 2>/dev/null | grep -P '^\t' | 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/\1\3#')
nonoptlib=$(echo "${nonoptlib}" | sed -e 's#-linux-gnu/\(tls\|i686\|sse2\|neon\|vfp\).*/\(lib.*\)#-linux-gnu/\2#')
if [ -e "${nonoptlib}" ]; then
x="${nonoptlib}"
fi
# Handle common dlopen() dependency (Debian bug #950254)
case "${x}" in
*/libpthread.so.*)
copy_libgcc "${x%/*}" || copy_libgcc "${x%/*}/.." || return
;;
esac
copy_file binary "${x}" || {
ret=$?
[ ${ret} = 1 ] || return $((ret - 1))
}
done
}
copy_libgcc() {
local libdir library
libdir="$1"
for library in "${libdir}"/libgcc_s.so.[1-9]; do
copy_exec "${library}" || return
done
}
# Copy entire subtrees to the initramfs
copy_modules_dir()
{
local kmod first exclude
local modules=
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 $*)"
fi
fi
# Build up an expression for find
first=true
for exclude in "$@"; do
# Change .ko suffix in exclusion to .ko*
if [ "${exclude%.ko}" != "${exclude}" ]; then
exclude="${exclude}*"
fi
$first && set --
set -- "$@" -name "${exclude}" -prune -o
first=false
done
# shellcheck disable=SC2044
for kmod in $(find "${MODULESDIR}/${dir}" "$@" -name '*.ko*' -printf '%f\n'); do
modules="$modules ${kmod%%.*}"
done
# shellcheck disable=SC2086
manual_add_modules $modules
}
# walk /sys for relevant modules
sys_walk_mod_add()
{
local driver_path module device_path modalias
device_path="$1"
while [ "${device_path}" != "/sys" ]; do
# device modalias
if [ -e "${device_path}/modalias" ]; then
modalias=$(cat "${device_path}/modalias")
if [ -n "${modalias}" ]; then
manual_add_modules "${modalias}"
fi
fi
# current driver module
driver_path="$(readlink -f "${device_path}/driver/module")"
if [ -e "$driver_path" ]; then
module="$(basename "$(readlink -f "$driver_path")")"
if [ -n "${module}" ]; then
manual_add_modules "${module}"
fi
fi
device_path="$(dirname "${device_path}")"
done
}
nvme_dev_sys_walk_mod_add()
{
local dev_sys_path component nvme_sys_path
dev_sys_path="$(readlink -f "$1")"
if ! echo "$dev_sys_path" | grep -q "nvme-subsys"; then
return
fi
for component in "$dev_sys_path"/nvme* ; do
if [ -L "$component" ] ; then
nvme_sys_path=$(readlink -f "$component")
sys_walk_mod_add "$nvme_sys_path"
fi
done
}
block_dev_sys_walk_mod_add()
{
local dev_sys_path disk_sys_path component
# Resolve symlink so sys_walk_mod_add can walk up the hierarchy
dev_sys_path="$(readlink -f "$1")"
# Find whole disk from partition
if grep -q "^DEVTYPE=partition$" "$dev_sys_path/uevent"; then
disk_sys_path="$dev_sys_path/.."
else
disk_sys_path="$dev_sys_path"
fi
# Iterate over component of a layered device
find "$disk_sys_path/slaves" -mindepth 1 -maxdepth 1 | while read -r component; do
block_dev_sys_walk_mod_add "$component"
done
nvme_dev_sys_walk_mod_add "$disk_sys_path/device"
sys_walk_mod_add "${dev_sys_path}"
}
block_dev_mod_add()
{
local dev_node dev_num dev_sys_path
dev_node="$1"
# Look up device number and convert to decimal as it appears in sysfs
dev_num="$(stat -L -c %t:%T "$dev_node")"
dev_num="$((0x${dev_num%:*})):$((0x${dev_num#*:}))"
# Look up device in sysfs
dev_sys_path="/sys/dev/block/$dev_num"
if [ ! -d "$dev_sys_path" ]; then
echo "mkinitramfs: for device ${dev_node} missing ${dev_sys_path}" >&2
echo "mkinitramfs: workaround is MODULES=most" >&2
echo "mkinitramfs: Error please report the bug" >&2
exit 1
fi
block_dev_sys_walk_mod_add "$dev_sys_path"
}
# Copy all loaded or built-in modules matching the given pattern.
# Pattern mustn't include directory or '.ko' suffix but should use
# '[-_]' to allow for differences in naming between /sys/module and
# modules.builtin.
add_loaded_modules()
{
local pattern="$1"
local module builtin
builtin="/lib/modules/$(uname -r)/modules.builtin"
for module in /sys/module/$pattern; do
if [ -d "$module" ]; then
manual_add_modules "$(basename "$module")"
fi
done
if [ -f "$builtin" ]; then
while read -r module; do
case "$module" in
*/$pattern.ko)
manual_add_modules "$(basename "$module" .ko)"
;;
esac
done < "$builtin"
fi
}
# find and only copy modules relevant to a mountpoint
dep_add_modules_mount()
{
local dir dev_node FSTYPE
dir="$1"
# require mounted sysfs
if [ ! -d /sys/devices/ ]; then
echo "mkinitramfs: MODULES dep requires mounted sysfs on /sys" >&2
exit 1
fi
# find out block device + fstype
# shellcheck disable=SC2034
eval "$(while read -r dev mp fs opts rest ; do \
[ "$mp" = "$dir" ] && [ "$fs" != "rootfs" ] \
&& printf "dev_node=%s\\nFSTYPE=%s" "$dev" "$fs"\
&& break; done < /proc/mounts)"
# Only the root mountpoint has to exist; do nothing if any other
# directory is not a mountpoint.
if [ "$dir" != / ] && [ -z "$dev_node" ]; then
return
fi
# handle ubifs and return since ubifs is mounted on char devices
# but most of the commands below only work with block devices.
if [ "${FSTYPE}" = "ubifs" ]; then
manual_add_modules "${FSTYPE}"
return
fi
if [ "${FSTYPE}" = "zfs" ]; then
manual_add_modules "${FSTYPE}"
# ZFS uses the name of a filesystem instead of a device. Find
# the devices that make up the pool containing the specified
# filesystem, and add the appropriate driver for each device.
local poolname="${dev_node%%/*}"
# shellcheck disable=SC2034
zpool list -vPL "$poolname" | while read -r dev ignored; do
# Ignore non-leaf vdevs by skipping anything that doesn't
# look like an absolute path
echo "$dev" | grep -q '^/' && block_dev_mod_add "$dev"
done
return
fi
if [ "$dir" = / ] && [ "${dev_node}" = "/dev/root" ] ; then
if [ -b "${dev_node}" ]; then
# Match it to the canonical device name by UUID
dev_node="/dev/disk/by-uuid/"$(blkid -o value -s UUID "${dev_node}") 2>/dev/null
else
# Does not exist in our namespace, so look at the
# kernel command line
dev_node=
# shellcheck disable=SC2013
for arg in $(cat /proc/cmdline); do
case "$arg" in
root=*)
dev_node="${arg#root=}"
if [ "${dev_node#/dev/}" = "$dev_node" ]; then
dev_node="/dev/$dev_node"
fi
;;
--)
break
;;
*)
;;
esac
done
fi
fi
# recheck device
if [ -z "$dev_node" ] || ! dev_node="$(readlink -f "${dev_node}")" \
|| ! [ -b "$dev_node" ]; then
echo "mkinitramfs: failed to determine device for $dir" >&2
echo "mkinitramfs: workaround is MODULES=most, check:" >&2
echo "grep -r MODULES ${CONFDIR}" >&2
echo "" >&2
echo "Error please report bug on initramfs-tools" >&2
echo "Include the output of 'mount' and 'cat /proc/mounts'" >&2
exit 1
fi
# do not trust mount, check superblock
FSTYPE=$(blkid -o value -s TYPE "${dev_node}")
if [ -z "${FSTYPE}" ]; then
echo "mkinitramfs: unknown fstype on device ${dev_node}" >&2
echo "mkinitramfs: workaround is MODULES=most" >&2
echo "Error please report bug on initramfs-tools" >&2
exit 1
fi
# Add filesystem
manual_add_modules "${FSTYPE}"
block_dev_mod_add "$dev_node"
}
class_add_modules()
{
local device
for device in "/sys/class/$1"/*; do
device="$(readlink -f "$device")" \
&& sys_walk_mod_add "$device"
done
}
dep_add_modules()
{
local device dev_node
local modules=
dep_add_modules_mount /
dep_add_modules_mount /usr
if [ -n "${RESUME}" ]; then
dev_node="$(resolve_device "${RESUME}")"
if [ -n "${dev_node}" ]; then
block_dev_mod_add "${dev_node}"
fi
fi
# sys walk some important device classes
for class in extcon gpio phy pwm regulator rtc; do
class_add_modules "$class"
done
# clk, USB-PHY and pinctrl devices are outside the device model (!) so
# match loaded modules by name
add_loaded_modules 'clk[-_]*'
add_loaded_modules 'phy[-_]*'
add_loaded_modules 'pinctrl[-_]*'
# Sys walk keyboards. We identify keyboards as input devices
# that can generate at least key events 1-31; udev has the
# same heuristic. Note that the format of the bitmap
# properties depends on the word size of the process reading
# the uevent file!
for device in /sys/class/input/input*; do
if grep -qs "^KEY=.*fffffff[ef]$" "${device}/uevent"; then
sys_walk_mod_add "$(readlink -f "$device")"
fi
done
# Sys walk graphics for machines that don't have a generic framebuffer
# device and wouldn't have a working video console otherwise.
walk_graphics=yes
for device in /sys/bus/platform/drivers/efi-framebuffer/* \
/sys/bus/platform/drivers/platform-framebuffer/* \
/sys/bus/platform/drivers/simple-framebuffer/* \
/sys/bus/platform/drivers/vesa-framebuffer/*; do
if [ -d "$device" ]; then
walk_graphics=no
break
fi
done
if [ "$walk_graphics" = "yes" ]; then
class_add_modules backlight
class_add_modules graphics
fi
# catch old-style IDE
if [ -e /sys/bus/ide/devices/ ]; then
modules="$modules ide-gd_mod ide-cd"
fi
if [ -e /sys/bus/scsi/devices/ ]; then
modules="$modules sd_mod"
fi
if [ -e /sys/bus/mmc/devices/ ]; then
modules="$modules mmc_block"
fi
if [ -e /sys/bus/virtio ] ; then
modules="$modules virtio_pci virtio_mmio"
fi
if [ -e /sys/bus/ps3_system_bus/ ]; then
modules="$modules ps3disk ps3rom ps3-gelic ps3_sys_manager"
fi
if [ -e /sys/bus/vio/ ]; then
modules="$modules sunvnet sunvdc"
fi
if [ -e /sys/devices/platform/edp-panel ]; then
sys_walk_mod_add /sys/devices/platform/edp-panel
fi
# shellcheck disable=SC2086
manual_add_modules $modules
}
# The modules "most" classes added per default to the initramfs
auto_add_modules()
{
local arg blockfuncs exclude exclude_dir
local modules=
if [ "$#" -eq 0 ] ; then
set -- base hw_random net ide scsi block ata dasd firewire mmc usb_storage fb virtual nx
fi
blockfuncs="ahci_platform_get_resources|ata_scsi_ioctl|scsi_add_host|blk_cleanup_queue"
blockfuncs="${blockfuncs}|register_mtd_blktrans|scsi_esp_register|register_virtio_device"
blockfuncs="${blockfuncs}|usb_stor_disconnect|mmc_add_host|sdhci_add_host|scsi_add_host_with_dma"
blockfuncs="${blockfuncs}|blk_mq_alloc_disk|blk_mq_alloc_request|blk_mq_destroy_queue|blk_cleanup_disk"
case "$DPKG_ARCH" in
arm64|armel|armhf|riscv64)
blockfuncs="${blockfuncs}|dw_mc_probe|dw_mci_pltfm_register|nvme_init_ctrl"
;;
esac
for arg in "$@" ; do
case "$arg" in
base)
modules="$modules btrfs ext2 ext3 ext4 f2fs"
modules="$modules isofs jfs reiserfs squashfs udf xfs"
modules="$modules nfs nfsv2 nfsv3 nfsv4"
modules="$modules af_packet atkbd i8042 psmouse"
modules="$modules virtio_pci virtio_mmio"
# nls not automatically pulled in as ubuntu has built-in vfat
modules="$modules vfat nls_cp437 nls_iso8859-1"
# Include most USB host and dual-role drivers
modules="$modules ehci-hcd ehci-pci ehci-platform ohci-hcd ohci-pci"
modules="$modules uhci-hcd usbhid xhci-hcd xhci-pci xhci-plat-hcd"
modules="$modules =drivers/usb/typec"
modules="$modules =drivers/usb/c67x00"
modules="$modules =drivers/usb/renesas_usbhs"
# and any extcon drivers for USB
modules="$modules extcon-usb-gpio extcon-usbc-cros-ec"
# Include all keyboard drivers and all HID drivers
# unless we're sure they don't support keyboards.
# hid-*ff covers various game controllers with
# force feedback.
modules="$modules =drivers/input/keyboard"
exclude="a4tech|cypress|dr|elecom|gyration|icade|kensington"
exclude="${exclude}|kye|lcpower|magicmouse|ntrig"
exclude="${exclude}|petalynx|picolcd|pl|ps3remote|quanta"
exclude="${exclude}|roccat-ko.*|roccat-pyra|saitek|sensor-hub|sony"
exclude="${exclude}|speedlink|tivo|twinhan|uclogic|wacom|waltop"
exclude="${exclude}|wiimote|zydacron|.*ff"
manual_add_modules -P "/hid-(${exclude})\.ko" =drivers/hid
# needed to access keyboard on some ChromeOS devices
modules="$modules cros_ec_spi"
# needed to access keyboard on MacBook Pro 2017
modules="$modules intel_lpss_pci spi_pxa2xx_platform"
# needed for keyboard on Surface Laptop 4
modules="$modules surface_aggregator_registry"
# For Linux console access
modules="$modules =drivers/tty/serial"
# Any of these might be needed by other drivers
modules="$modules =drivers/bus"
modules="$modules =drivers/i2c/muxes"
modules="$modules =drivers/pci/controller"
modules="$modules =drivers/pinctrl"
case "$DPKG_ARCH" in
arm64|armel|armhf|riscv64)
manual_add_modules "=drivers/usb/host" \
-P "/(hwa-hc|sl811_cs|sl811-hcd|u132-hcd|whci-hcd)\.ko"
modules="$modules =drivers/clk"
modules="$modules =drivers/i2c/busses"
modules="$modules =drivers/gpio"
modules="$modules =drivers/mfd"
modules="$modules =drivers/nvmem"
modules="$modules =drivers/phy"
modules="$modules =drivers/power"
modules="$modules =drivers/regulator"
modules="$modules =drivers/reset"
modules="$modules =drivers/spi"
modules="$modules =drivers/spmi"
modules="$modules =drivers/soc"
modules="$modules =drivers/usb/chipidea"
modules="$modules =drivers/usb/dwc2"
modules="$modules =drivers/usb/dwc3"
modules="$modules =drivers/usb/isp1760"
modules="$modules =drivers/usb/musb"
modules="$modules =drivers/usb/phy"
# Needed for periodic fsck
modules="$modules =drivers/rtc"
# Add the axp20x_usb_power power supply driver,
# required to initialize the USB host controllers
# on a number of armhf systems
modules="$modules axp20x_usb_power"
;;
esac
;;
hw_random)
modules="$modules =drivers/char/hw_random"
;;
net)
exclude="cdc_mbim|ipheth|qmi_wwan|sierra_net|veth|xen-netback"
exclude_dir="isdn|net/ethernet|net/phy|net/team|uwb|wan|wireless"
manual_add_modules -P "/((${exclude})\.ko|(${exclude_dir})/)" \
-s "eth_type_trans|register_virtio_device|usbnet_open" \
"=drivers/net"
modules="$modules =drivers/net/ethernet =drivers/net/mdio"
modules="$modules =drivers/net/phy 8021q ipvlan"
;;
ide)
modules="$modules =drivers/ide"
;;
mmc)
modules="$modules =drivers/mmc"
;;
scsi)
manual_add_modules -s "${blockfuncs}|iscsi_register_transport" \
"=drivers/scsi" "=drivers/ufs"
modules="$modules be2iscsi bnx2i cxgb3i cxgb4i qedi qla4xxx"
modules="$modules scsi_dh_alua scsi_dh_emc scsi_dh_rdac"
modules="$modules mptfc mptsas mptscsih mptspi zfcp"
# scsi_transport_srp should have been pulled in by =drivers/scsi
modules="$modules scsi_transport_srp"
;;
ata)
manual_add_modules -s "${blockfuncs}" "=drivers/ata"
;;
block)
manual_add_modules -s "${blockfuncs}" "=drivers/block" \
"=drivers/nvme" "=drivers/dax" vmd
manual_add_modules -s nvdimm_bus_register "=drivers/nvdimm" "=drivers/acpi"
modules="$modules dax_pmem nd_pmem"
;;
ubi)
modules="$modules deflate zlib lzo ubi ubifs"
;;
firewire)
modules="$modules firewire-ohci firewire-sbp2"
;;
dasd)
modules="$modules dasd_diag_mod dasd_eckd_mod dasd_fba_mod"
;;
usb_storage)
modules="$modules =drivers/usb/storage"
;;
fb)
# For machines that don't have a generic framebuffer device.
modules="$modules rockchipdrm pwm-cros-ec pwm_bl pwm-rockchip panel-simple"
modules="$modules analogix-anx6345 pwm-sun4i sun4i-drm sun8i-mixer panel-edp"
# For panel/backlight on MNT Reform 2
modules="$modules pwm_imx27 nwl-dsi ti-sn65dsi86 imx-dcss"
modules="$modules mux-mmio mxsfb imx8mq-interconnect"
;;
fbdev)
# Video drivers from drivers/video/fbdev
modules="$modules efifb fbcon simplefb vesafb vga16fb"
;;
minimal_drm)
# Minimal required set of Direct Rendering Manager (DRM) drivers for video
modules="$modules =drivers/gpu/drm/tiny vboxvideo virtio-gpu"
# if there is a privacy screen then its driver must be loaded before the
# kms driver will bind, otherwise its probe() will return -EPROBE_DEFER
# So include privacy screen providers
# atm all providers live under drivers/platform/x86
manual_add_modules -s "drm_privacy_screen_register" "=drivers/platform/x86"
;;
virtual)
# Hyper-V
modules="$modules hv_vmbus hv_utils hv_netvsc hv_mouse hv_storvsc hyperv-keyboard"
;;
nx)
# PowerPC NX Crypto Coprocessor
modules="$modules nx-compress nx-compress-crypto nx-compress-platform"
modules="$modules nx-compress-pseries nx-compress-powernv 842-decompress"
;;
esac
done
# shellcheck disable=SC2086
manual_add_modules $modules
}
# 'depmod' only looks at symbol dependencies and the 'softdep' module
# information field; there is no way for modules to declare weaker
# dependencies (modules that *might* be needed at run-time) through
# module information, Until this is fixed, we need to handle those
# hidden dependencies.
hidden_dep_add_modules()
{
# shellcheck disable=SC2046
manual_add_modules $(
{
cat "${DESTDIR}/lib/modules/${version}/modules.builtin"
if [ -d "${DESTDIR}/lib/modules/${version}/kernel" ]; then
find "${DESTDIR}/lib/modules/${version}/kernel" -name '*.ko*'
fi
} |
while read -r module; do
module="${module##*/}"
module="${module%%.*}"
case "$module" in
libcrc32c)
echo crc32c
;;
ubifs)
echo deflate zlib lzo
;;
btrfs)
echo crc32c
;;
f2fs)
echo crc32
;;
mlx4_core)
echo mlx4_ib
;;
mlx5_core)
echo mlx5_ib
;;
i8042)
echo psmouse
;;
nvme)
echo vmd
;;
spi-rockchip)
echo pl330
;;
dw_mmc-rockchip)
echo rockchip-io-domain io-domain
;;
esac
done
)
}
# Find the source for a script file. This is needed to work around
# temporary directories mounted with the noexec option. The source
# will be on / or /usr which must be executable.
get_source()
{
if [ -z "$scriptdir" ]; then
echo "${initdir}/$1"
elif [ -f "${CONFDIR}${scriptdir}/$1" ]; then
echo "${CONFDIR}${scriptdir}/$1"
else
echo "/usr/share/initramfs-tools${scriptdir}/$1"
fi
}
set_initlist()
{
unset initlist
for si_x in "${initdir}"/*; do
# skip empty dirs without warning
[ "${si_x}" = "${initdir}/*" ] && return
# only allow variable name chars
case "${si_x#"${initdir}"/}" in
*[![:alnum:]\._-]*)
[ "${verbose}" = "y" ] \
&& echo "$si_x ignored: not alphanumeric or '_' file" >&2
continue
;;
esac
# skip directories
if [ -d "${si_x}" ]; then
[ "${verbose}" = "y" ] \
&& echo "$si_x ignored: a directory" >&2
continue
fi
si_x="$(get_source "${si_x#"${initdir}"/}")"
# skip non executable scripts
if [ ! -x "${si_x}" ]; then
[ "${verbose}" = "y" ] \
&& echo "$si_x ignored: not executable" >&2
continue
fi
# skip bad syntax
if ! sh -n "${si_x}" ; then
[ "${verbose}" = "y" ] \
&& echo "$si_x ignored: bad syntax" >&2
continue
fi
initlist="${initlist:-} ${si_x##*/}"
done
}
get_prereq_pairs()
{
set_initlist
for gp_x in ${initlist:-}; do
echo "${gp_x} ${gp_x}"
gp_src="$(get_source "$gp_x")"
prereqs=$("${gp_src}" prereqs)
for prereq in ${prereqs}; do
echo "${prereq} ${gp_x}"
done
done
}
# cache boot scripts order
cache_run_scripts()
{
DESTDIR=${1}
scriptdir=${2}
initdir=${DESTDIR}${scriptdir}
[ ! -d "${initdir}" ] && return
true > "${initdir}/ORDER"
runlist=$(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
}
call_scripts()
{
set -e
for cs_x in ${runlist}; do
[ -f "${initdir}/${cs_x}" ] || continue
if [ "$call_scripts_optional" = "y" ]; then
option=$(sed '/^OPTION=/!d;$d;s/^OPTION=//;s/[[:space:]]*$//' "${initdir}/${cs_x}")
# shellcheck disable=SC1083,2086
[ -z "${option}" ] || eval test -n \"\${$option}\" -a \"\${$option}\" != \"n\" || continue
fi
# mkinitramfs verbose output
if [ "${verbose}" = "y" ]; then
echo "Calling hook ${cs_x}"
fi
"${initdir}/${cs_x}" && ec=$? || ec=$?
# allow hooks to abort build:
if [ "$ec" -ne 0 ]; then
echo "E: ${initdir}/${cs_x} failed with return $ec." >&2
# only errexit on mkinitramfs
[ -n "${version}" ] && exit "$ec"
fi
# allow boot scripts to modify exported boot parameters
if [ -e /conf/param.conf ]; then
. /conf/param.conf
fi
done
set +e
}
run_scripts()
{
scriptdir=${2:-}
initdir=${1}
[ ! -d "${initdir}" ] && return
runlist=$(get_prereq_pairs | tsort)
call_scripts "$scriptdir"
}
run_scripts_optional()
{
call_scripts_optional=y
run_scripts "$@"
}
add_dns() {
local destdir="$1" multiarch_dir="" nsswitch="" lib="" f=""
# find the multiarch lib dir (for example /lib/x86_64-linux-gnu)
multiarch_dir=$(ldd /bin/sh | sed -En 's;^.*/lib(/lib[^/]*prof)?/([^/]+)/libc\.so\..*$;\2;p')
if [ -z "$multiarch_dir" ]; then
echo "WARNING: no multiarch_dir found for adding dns." 1>&2
return
fi
nsswitch="$destdir/etc/nsswitch.conf"
if ! grep -qs "^hosts:" "$nsswitch"; then
echo "hosts: files dns" >> "$nsswitch"
fi
local found=""
for lib in libnss_files libnss_dns libresolv; do
found=""
for f in "/lib/$multiarch_dir/$lib.so".?; do
[ -e "$f" ] || continue
[ "$verbose" = "y" ] && echo "dns: $lib: $f"
copy_file library "$f"
found="$f"
done
[ -n "$found" ] || echo "WARNING: no /lib/$multiarch_dir/$lib.? file" 1>&2
done
return 0
}
Mini Shell