diff options
Diffstat (limited to 'meta/recipes-core/udev/eudev/init')
-rw-r--r-- | meta/recipes-core/udev/eudev/init | 88 |
1 files changed, 38 insertions, 50 deletions
diff --git a/meta/recipes-core/udev/eudev/init b/meta/recipes-core/udev/eudev/init index 0ab028b391..477a525b21 100644 --- a/meta/recipes-core/udev/eudev/init +++ b/meta/recipes-core/udev/eudev/init @@ -14,25 +14,7 @@ export TZ=/etc/localtime [ -d /sys/class ] || exit 1 [ -r /proc/mounts ] || exit 1 [ -x @UDEVD@ ] || exit 1 -SYSCONF_CACHED="/etc/udev/cache.data" -SYSCONF_TMP="/dev/shm/udev.cache" -DEVCACHE_REGEN="/dev/shm/udev-regen" # create to request cache regen -# A list of files which are used as a criteria to judge whether the udev cache could be reused. -CMP_FILE_LIST="/proc/version /proc/cmdline /proc/devices" -[ -f /proc/atags ] && CMP_FILE_LIST="$CMP_FILE_LIST /proc/atags" - -# List of files whose metadata (size/mtime/name) will be included in cached -# system state. -META_FILE_LIST="lib/udev/rules.d/* etc/udev/rules.d/*" - -# Command to compute system configuration. -sysconf_cmd () { - cat -- $CMP_FILE_LIST - stat -c '%s %Y %n' -- $META_FILE_LIST | awk -F/ '{print $1 " " $NF;}' -} - -[ -f /etc/default/udev-cache ] && . /etc/default/udev-cache [ -f /etc/udev/udev.conf ] && . /etc/udev/udev.conf [ -f /etc/default/rcS ] && . /etc/default/rcS @@ -41,6 +23,42 @@ kill_udevd () { [ -n "$pid" ] && kill $pid } +make_static_nodes () { + [ -e /lib/modules/$(uname -r)/modules.devname ] || return 0 + [ -x @KMOD@ ] || return 0 + + #output to /proc/self/fd/1 since /dev/stdout not created by udevd yet + @KMOD@ static-nodes --format=tmpfiles --output=/proc/self/fd/1 | + while read TTYPE TPATH TMODE TUSER TGROUP TAGE TARG; do + case "${TTYPE}" in + 'd') + test -d "${TPATH}" || mkdir -p -m "${TMODE}" "${TPATH}" + ;; + + 'c!') + if [ ! -c "${TPATH}" ]; then + old_ifs="${IFS}" + IFS=: + set -- ${TARG} + IFS="${old_ifs}" + mknod -m "${TMODE}" "${TPATH}" c "$@" + fi + ;; + + *) + echo "Unparseable line (${TTYPE} ${TPATH} ${TMODE} ${TUSER} ${TGROUP} ${TAGE} ${TARG})" + return 1 + ;; + esac + if [ "${TUSER}" != "-" ]; then + chown "${TUSER}" "${TPATH}" + fi + if [ "${TGROUP}" != "-" ]; then + chgrp "${TGROUP}" "${TPATH}" + fi + done +} + case "$1" in start) export ACTION=add @@ -66,42 +84,12 @@ case "$1" in # /var/volatile/tmp directory to be available. mkdir -m 1777 -p /var/volatile/tmp - # Cache handling. - if [ "$DEVCACHE" != "" ]; then - if [ -e $DEVCACHE ]; then - sysconf_cmd > "$SYSCONF_TMP" - if cmp $SYSCONF_CACHED $SYSCONF_TMP >/dev/null; then - tar xmf $DEVCACHE -C / -m - not_first_boot=1 - [ "$VERBOSE" != "no" ] && echo "udev: using cache file $DEVCACHE" - [ -e $SYSCONF_TMP ] && rm -f "$SYSCONF_TMP" - [ -e "$DEVCACHE_REGEN" ] && rm -f "$DEVCACHE_REGEN" - else - # Output detailed reason why the cached /dev is not used - cat <<EOF -udev: Not using udev cache because of changes detected in the following files: -udev: $CMP_FILE_LIST -udev: $META_FILE_LIST -udev: The udev cache will be regenerated. To identify the detected changes, -udev: compare the cached sysconf at $SYSCONF_CACHED -udev: against the current sysconf at $SYSCONF_TMP -EOF - touch "$DEVCACHE_REGEN" - fi - else - if [ "$ROOTFS_READ_ONLY" != "yes" ]; then - # If rootfs is not read-only, it's possible that a new udev cache would be generated; - # otherwise, we do not bother to read files. - touch "$DEVCACHE_REGEN" - fi - fi - fi - # make_extra_nodes kill_udevd > "/dev/null" 2>&1 + make_static_nodes # trigger the sorted events - [ -e /proc/sys/kernel/hotplug ] && echo -e '\000' >/proc/sys/kernel/hotplug + [ -e /proc/sys/kernel/hotplug ] && printf '\0\n' >/proc/sys/kernel/hotplug @UDEVD@ -d udevadm control --env=STARTUP=1 |