X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/9e7554db871433758f661e85f8ff95501b62d935..ca385d45a3d565989aa7f6a6f4cf454b918435f4:/package/base-files/files/lib/functions/boot.sh

diff --git a/package/base-files/files/lib/functions/boot.sh b/package/base-files/files/lib/functions/boot.sh
index e6f6633ad..6bdd7a149 100644
--- a/package/base-files/files/lib/functions/boot.sh
+++ b/package/base-files/files/lib/functions/boot.sh
@@ -3,22 +3,69 @@
 # Copyright (C) 2010 Vertical Communications
 
 mount() {
-	/bin/busybox mount "$@"
+	/bin/busybox mount -o noatime "$@"
+}
+
+boot_hook_splice_start() {
+	export -n PI_HOOK_SPLICE=1
+}
+
+boot_hook_splice_finish() {
+	local hook
+	for hook in $PI_STACK_LIST; do
+		local v; eval "v=\${${hook}_splice:+\$${hook}_splice }$hook"
+		export -n "${hook}=${v% }"
+		export -n "${hook}_splice="
+	done
+	export -n PI_HOOK_SPLICE=
+}
+
+boot_hook_init() {
+	local hook="${1}_hook"
+	export -n "PI_STACK_LIST=${PI_STACK_LIST:+$PI_STACK_LIST }$hook"
+	export -n "$hook="
 }
 
 boot_hook_add() {
-    	local hook="${1}_hook"
-	local value="$2"
-	local sep=" "
-	
-	eval "$hook=\"\${$hook:+\${$hook}\${value:+\$sep}}\$value\""
+	local hook="${1}_hook${PI_HOOK_SPLICE:+_splice}"
+	local func="${2}"
+
+	[ -n "$func" ] && {
+		local v; eval "v=\$$hook"
+		export -n "$hook=${v:+$v }$func"
+	}
+}
+
+boot_hook_shift() {
+	local hook="${1}_hook"
+	local rvar="${2}"
+
+	local v; eval "v=\$$hook"
+	[ -n "$v" ] && {
+		local first="${v%% *}"
+
+		[ "$v" != "${v#* }" ] && \
+			export -n "$hook=${v#* }" || \
+			export -n "$hook="
+
+		export -n "$rvar=$first"
+		return 0
+	}
+
+	return 1
 }
 
 boot_run_hook() {
-    local boot_func
-    for boot_func in $(eval "echo \"\$${1}_hook\""); do
-	$boot_func "$1" "$2"
-    done
+	local hook="$1"
+	local func
+
+	while boot_hook_shift "$hook" func; do
+		local ran; eval "ran=\$PI_RAN_$func"
+		[ -n "$ran" ] || {
+			export -n "PI_RAN_$func=1"
+			$func "$1" "$2"
+		}
+	done
 }
 
 find_mtd_part() {
@@ -31,9 +78,10 @@ find_mtd_part() {
 }
 
 jffs2_ready () {
-    mtdpart="$(find_mtd_part rootfs_data)"
-    magic=$(hexdump $mtdpart -n 4 -e '4/1 "%02x"')
-    [ "$magic" != "deadc0de" ]
+	mtdpart="$(find_mtd_part rootfs_data)"
+	[ -z "$mtdpart" ] && return 1
+	magic=$(hexdump $mtdpart -n 4 -e '4/1 "%02x"')
+	[ "$magic" != "deadc0de" ]
 }
 
 dupe() { # <new_root> <old_root>
@@ -77,7 +125,9 @@ pivot() { # <new_root> <old_root>
 fopivot() { # <rw_root> <ro_root> <dupe?>
 	root=$1
 	{
-		if grep -q mini_fo /proc/filesystems; then
+		if grep -q overlay /proc/filesystems; then
+			mount -t overlayfs -olowerdir=/,upperdir=$1 "overlayfs:$1" /mnt && root=/mnt
+		elif grep -q mini_fo /proc/filesystems; then
 			mount -t mini_fo -o base=/,sto=$1 "mini_fo:$1" /mnt 2>&- && root=/mnt
 		else
 			mount --bind / /mnt
@@ -94,6 +144,7 @@ fopivot() { # <rw_root> <ro_root> <dupe?>
 
 ramoverlay() {
 	mkdir -p /tmp/root
-	mount -t tmpfs root /tmp/root
+	mount -t tmpfs -o mode=0755 root /tmp/root
 	fopivot /tmp/root /rom 1
 }
+