initramfs-framework: udev: Handle alternative binary paths

This allows use of udev daemon for different installation destinations
so allowing use of udev's from systemd code for initramfs.

(From OE-Core rev: dcf95bed1d9152d9cdb908b4e131e1c7c46cec84)

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 21 insertions, 6 deletions

diff --git a/meta/recipes-core/initrdscripts/initramfs-framework/udev b/meta/recipes-core/initrdscripts/initramfs-framework/udev
index 15a1d5ba06..7fbcc61d9c 100644
--- a/meta/recipes-core/initrdscripts/initramfs-framework/udev
+++ b/meta/recipes-core/initrdscripts/initramfs-framework/udev
@@ -1,10 +1,25 @@
 #!/bin/sh
-# Copyright (C) 2011 O.S. Systems Software LTDA.
+# Copyright (C) 2011, 2012 O.S. Systems Software LTDA.
 # Licensed on MIT
 
+udev_daemon() {
+        OPTIONS="/sbin/udevd /lib/udev/udevd /lib/systemd/systemd-udevd"
+
+        for o in $OPTIONS; do
+                if [ -x "$o" ]; then
+                        echo $o
+                        return 0
+                fi
+        done
+
+        return 1
+}
+
+_UDEV_DAEMON=`udev_daemon`
+
 udev_enabled() {
-        if [ ! -e /lib/udev/udevd ]; then
-                debug "/lib/udev/udev doesn't exist"
+        if [ -z "$_UDEV_DAEMON" ]; then
+                msg "WARNING: Cannot find the udev daemon; daemon will not be started in initramfs."
                 return 1
         fi
 
@@ -14,9 +29,9 @@ udev_enabled() {
 udev_run() {
         mkdir -p /run
 
-        /lib/udev/udevd --daemon > /dev/null
+        $_UDEV_DAEMON --daemon
         udevadm trigger --action=add
         udevadm settle
 
-        killall udevd 2>/dev/null
+        killall `basename $_UDEV_DAEMON` 2>/dev/null
 }
diff --git a/meta/recipes-core/initrdscripts/initramfs-framework_1.0.bb b/meta/recipes-core/initrdscripts/initramfs-framework_1.0.bb
index 45d6592bc3..cbb4a39611 100644
--- a/meta/recipes-core/initrdscripts/initramfs-framework_1.0.bb
+++ b/meta/recipes-core/initrdscripts/initramfs-framework_1.0.bb
@@ -3,7 +3,7 @@ LICENSE = "MIT"
 LIC_FILES_CHKSUM = "file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
 RDEPENDS = "busybox"
 
-PR = "r1"
+PR = "r2"
 
 inherit allarch