Hi all,
The attached patch enables to set the environment variables for xend
in /etc/sysconfig/xend.
There are four variables.
XENCONSOLED_TRACE=[none|guest|hv|all]
XENSTORED_ROOTDIR=/var/lib/xenstored
XENSTORED_TRACE=[yes|on|1]
XENBACKENDD_DEBUG=[yes|on|1]
The XENCONSOLED_TRACE and XENSTORED_ROOTDIR take strings for each
command's options. And if thease variables have non-zero strings, then
export them.
If the XENSTORED_TRACE and XENBACKENDD_DEBUG take either "yes", "on"
or "1" then export them.

diff -r ead107bc25cb tools/hotplug/Linux/Makefile
--- a/tools/hotplug/Linux/Makefile Fri Sep 04 08:43:05 2009 +0100
+++ b/tools/hotplug/Linux/Makefile Mon Sep 07 16:21:42 2009 +0900
@@ -3,6 +3,7 @@
 
 # Init scripts.
 XEND_INITD = init.d/xend
+XEND_SYSCONFIG = init.d/sysconfig.xend
 XENDOMAINS_INITD = init.d/xendomains
 XENDOMAINS_SYSCONFIG = init.d/sysconfig.xendomains
 
@@ -62,6 +63,7 @@
 [ -d $(DESTDIR)$(CONFIG_DIR)/init.d ] || $(INSTALL_DIR) 
$(DESTDIR)$(CONFIG_DIR)/init.d
 [ -d $(DESTDIR)$(CONFIG_DIR)/sysconfig ] || $(INSTALL_DIR) 
$(DESTDIR)$(CONFIG_DIR)/sysconfig
 $(INSTALL_PROG) $(XEND_INITD) $(DESTDIR)$(CONFIG_DIR)/init.d
+ $(INSTALL_PROG) $(XEND_SYSCONFIG) $(DESTDIR)$(CONFIG_DIR)/sysconfig/xend
 $(INSTALL_PROG) $(XENDOMAINS_INITD) $(DESTDIR)$(CONFIG_DIR)/init.d
 $(INSTALL_PROG) $(XENDOMAINS_SYSCONFIG) 
$(DESTDIR)$(CONFIG_DIR)/sysconfig/xendomains
 
diff -r ead107bc25cb tools/hotplug/Linux/init.d/sysconfig.xend
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/hotplug/Linux/init.d/sysconfig.xend Mon Sep 07 16:21:42 2009 +0900
@@ -0,0 +1,11 @@
+# Log xenconsoled messages (cf xm dmesg)
+#XENCONSOLED_TRACE=[none|guest|hv|all]
+
+# Log xenstored messages
+#XENSTORED_TRACE=[yes|on|1]
+
+# Running xenstored on XENSTORED_ROOTDIR
+#XENSTORED_ROOTDIR=/var/lib/xenstored
+
+# Running xenbackendd in debug mode
+#XENBACKENDD_DEBUG=[yes|on|1]
diff -r ead107bc25cb tools/hotplug/Linux/init.d/xend
--- a/tools/hotplug/Linux/init.d/xend Fri Sep 04 08:43:05 2009 +0100
+++ b/tools/hotplug/Linux/init.d/xend Mon Sep 07 16:21:42 2009 +0900
@@ -18,6 +18,9 @@
 # Short-Description: Start/stop xend
 # Description: Starts and stops the Xen control daemon.
 ### END INIT INFO
+
+shopt -s extglob
+test -f /etc/sysconfig/xend && . /etc/sysconfig/xend
 
 if ! grep -q "control_d" /proc/xen/capabilities ; then
 exit 0
@@ -41,6 +44,10 @@
 start)
 mkdir -p /var/lock/subsys
 touch /var/lock/subsys/xend
+ test -z "$XENSTORED_ROOTDIR" || export XENSTORED_ROOTDIR
+ test -z "$XENCONSOLED_TRACE" || export XENCONSOLED_TRACE
+ [[ "$XENSTORED_TRACE" == @(yes|on|1) ]] && export XENSTORED_TRACE
+ [[ "$XENBACKENDD_DEBUG" == @(yes|on|1) ]] && export XENBACKENDD_DEBUG
 xend start
 await_daemons_up
 ;;

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