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https://git.yoctoproject.org/poky
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Alejandro Hernandez
3e5e540513
udev has started to fail on new kernels (4.4), due to being deprecated in favor of systemd's udev implementation. To maintain a sysvinit alternative we also need to provide an alternative to udev. Eudev is a fork of systemds udev, this new eudev recipe provides upstream udev 220 funcitonality. - Removes patches that dont apply anymore - ToDo: eudev-ptest? [YOCTO #8998] (From OE-Core rev: a22797f7c37a865420837b5c29b270f73ee4c6ce) Signed-off-by: Alejandro Hernandez <alejandro.hernandez@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
76 lines
2.1 KiB
Bash
76 lines
2.1 KiB
Bash
#!/bin/sh -e
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### BEGIN INIT INFO
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# Provides: udev-cache
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# Required-Start: mountall
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# Required-Stop:
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# Default-Start: S
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# Default-Stop:
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# Short-Description: cache /dev to speedup the udev next boot
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### END INIT INFO
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export TZ=/etc/localtime
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[ -r /proc/mounts ] || exit 1
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[ -x @UDEVD@ ] || exit 1
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[ -d /sys/class ] || exit 1
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[ -f /etc/default/rcS ] && . /etc/default/rcS
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DEVCACHE_TMP="/dev/shm/udev-cache-tmp.tar"
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SYSCONF_CACHED="/etc/udev/cache.data"
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SYSCONF_TMP="/dev/shm/udev.cache"
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DEVCACHE_REGEN="/dev/shm/udev-regen" # create to request cache regen
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# A list of files which are used as a criteria to judge whether the udev cache could be reused.
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CMP_FILE_LIST="/proc/version /proc/cmdline /proc/devices"
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[ -f /proc/atags ] && CMP_FILE_LIST="$CMP_FILE_LIST /proc/atags"
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# List of files whose metadata (size/mtime/name) will be included in cached
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# system state.
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META_FILE_LIST="lib/udev/rules.d/* etc/udev/rules.d/*"
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# Command to compute system configuration.
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sysconf_cmd () {
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cat -- $CMP_FILE_LIST
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stat -c '%s %Y %n' -- $META_FILE_LIST | awk -F/ '{print $1 " " $NF;}'
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}
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[ -f /etc/default/udev-cache ] && . /etc/default/udev-cache
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if [ "$ROOTFS_READ_ONLY" = "yes" ]; then
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[ "$VERBOSE" != "no" ] && echo "udev-cache: read-only rootfs, skip generating udev-cache"
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exit 0
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fi
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[ "$DEVCACHE" != "" ] || exit 0
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[ "${VERBOSE}" == "no" ] || echo -n "udev-cache: checking for ${DEVCACHE_REGEN}... "
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if ! [ -e "$DEVCACHE_REGEN" ]; then
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[ "${VERBOSE}" == "no" ] || echo "not found."
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exit 0
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fi
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[ "${VERBOSE}" == "no" ] || echo "found."
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echo "Populating dev cache"
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err_cleanup () {
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echo "udev-cache: update failed!"
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udevadm control --start-exec-queue
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rm -f -- "$SYSCONF_TMP" "$DEVCACHE_TMP" "$DEVCACHE" "$SYSCONF_CACHED"
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}
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(
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set -e
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trap 'err_cleanup' EXIT
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udevadm control --stop-exec-queue
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sysconf_cmd > "$SYSCONF_TMP"
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find /dev -xdev \( -type b -o -type c -o -type l \) | cut -c 2- \
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| xargs tar cf "${DEVCACHE_TMP}"
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gzip < "${DEVCACHE_TMP}" > "$DEVCACHE"
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rm -f "${DEVCACHE_TMP}"
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mv "$SYSCONF_TMP" "$SYSCONF_CACHED"
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udevadm control --start-exec-queue
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rm -f "$DEVCACHE_REGEN"
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trap - EXIT
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) &
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exit 0
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