Get rid of hardcoded pathes for stubdom and hotplug scripts

- Have the buid system generate a file which exports the install paths
   for the hotplug scripts and stubdom / stubdom-dm
- Move file generation code from tools/python/Makefile into a gmake
   macro
  in Config.mk to avoid maintenance of three duplicates each with its
   own
  tweaks and bugs
- Export gmake variables into ioemu as shell variables
  for upcoming ioemu patches
- Do above as a gmake macro to avoid maintenance of several duplicates
- Adjust hotplug scripts to find the right xen binaries from the
  install directory
- Adjust stubdom-dm to use the install directories

Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>

18 files changed, 94 insertions, 58 deletions

diff --git a/Config.mk b/Config.mk
index 39e2511e44..62ea8395f9 100644
--- a/Config.mk
+++ b/Config.mk
@@ -87,6 +87,28 @@ define absolutify_xen_root
     export XEN_ROOT
 endef
 
+define buildmakevars2shellvars
+    PREFIX="$(PREFIX)";                                            \
+    XEN_SCRIPT_DIR="$(XEN_SCRIPT_DIR)";                            \
+    export PREFIX;                                                 \
+    export XEN_SCRIPT_DIR
+endef
+
+buildmakevars2file = $(eval $(call buildmakevars2file-closure,$(1)))
+define buildmakevars2file-closure
+    .PHONY: genpath
+    genpath:
+	rm -f $(1);                                                    \
+	echo "SBINDIR=\"$(SBINDIR)\"" >> $(1);                         \
+	echo "BINDIR=\"$(BINDIR)\"" >> $(1);                           \
+	echo "LIBEXEC=\"$(LIBEXEC)\"" >> $(1);                         \
+	echo "LIBDIR=\"$(LIBDIR)\"" >> $(1);                           \
+	echo "PRIVATE_BINDIR=\"$(PRIVATE_BINDIR)\"" >> $(1);           \
+	echo "XENFIRMWAREDIR=\"$(XENFIRMWAREDIR)\"" >> $(1);           \
+	echo "XEN_CONFIG_DIR=\"$(XEN_CONFIG_DIR)\"" >> $(1);           \
+	echo "XEN_SCRIPT_DIR=\"$(XEN_SCRIPT_DIR)\"" >> $(1)
+endef
+
 ifeq ($(debug),y)
 CFLAGS += -g
 endif
diff --git a/stubdom/Makefile b/stubdom/Makefile
index cd7234980d..cdedf8f2ca 100644
--- a/stubdom/Makefile
+++ b/stubdom/Makefile
@@ -77,8 +77,12 @@ TARGET_LDFLAGS += -nostdlib -L$(CROSS_PREFIX)/$(GNU_TARGET_ARCH)-xen-elf/lib
 
 TARGETS=ioemu c caml grub
 
+STUBDOMPATH="stubdompath.sh"
+genpath-target = $(call buildmakevars2file,$(STUBDOMPATH))
+$(eval $(genpath-target))
+
 .PHONY: all
-all: build
+all: genpath build
 ifeq ($(STUBDOM_SUPPORTED),1)
 build: ioemu-stubdom c-stubdom pv-grub
 else
@@ -270,8 +274,7 @@ libxc-$(XEN_TARGET_ARCH)/libxenctrl.a libxc-$(XEN_TARGET_ARCH)/libxenguest.a:: c
 ioemu: cross-zlib cross-libpci libxc
 	[ -f ioemu/config-host.mak ] || \
 	  ( $(absolutify_xen_root); \
-	    PREFIX=$(PREFIX); \
-	    export PREFIX; \
+	    $(buildmakevars2shellvars); \
 	    cd ioemu ; \
 	    LWIPDIR=$(CURDIR)/lwip-$(XEN_TARGET_ARCH) \
 	    TARGET_CPPFLAGS="$(TARGET_CPPFLAGS)" \
@@ -374,6 +377,7 @@ clean:
 	$(MAKE) -C caml clean
 	$(MAKE) -C c clean
 	rm -fr grub-$(XEN_TARGET_ARCH)
+	rm -f $(STUBDOMPATH)
 	[ ! -d libxc-$(XEN_TARGET_ARCH) ] || $(MAKE) -C libxc-$(XEN_TARGET_ARCH) clean
 	-[ ! -d ioemu ] || $(MAKE) -C ioemu clean
 
diff --git a/stubdom/stubdom-dm b/stubdom/stubdom-dm
index 5161e1d0ee..76068a0bd0 100644
--- a/stubdom/stubdom-dm
+++ b/stubdom/stubdom-dm
@@ -5,6 +5,9 @@
 # dm script around stubdomains.
 #
 
+. ./stubdompath.sh
+stubdom_configdir="${XEN_CONFIG_DIR}/stubdoms"
+
 # To fit xterms nicely
 height=339
 
@@ -80,7 +83,7 @@ term() {
     (
 	[ -n "$vncpid" ] && kill -9 $vncpid
 	xm destroy $domname-dm
-        rm /etc/xen/stubdoms/$domname-dm
+        rm ${stubdom_configdir}/$domname-dm
     ) &
     # We need to exit immediately so as to let xend do the commands above
     exit 0
@@ -97,9 +100,9 @@ do
 done
 
 # Generate stubdom config file
-mkdir -p /etc/xen/stubdoms &>/dev/null
-echo "#This file is autogenerated, edit $domname instead!" > /etc/xen/stubdoms/$domname-dm
-echo "kernel = '/usr/lib/xen/boot/ioemu-stubdom.gz'" >> /etc/xen/stubdoms/$domname-dm
+mkdir -p ${stubdom_configdir} &>/dev/null
+echo "#This file is autogenerated, edit $domname instead!" > ${stubdom_configdir}/$domname-dm
+echo "kernel = '${XENFIRMWAREDIR}/ioemu-stubdom.gz'" >> ${stubdom_configdir}/$domname-dm
 
 vfb="sdl=$sdl, opengl=$opengl"
 test "$DISPLAY" && vfb="$vfb, display=$DISPLAY"
@@ -110,9 +113,9 @@ test "$vncpasswd" && vfb="$vfb, vncpasswd=$vncpasswd"
 test "$keymap" && vfb="$vfb, keymap=$keymap"
 test "$monitor" && vfb="$vfb, monitor=$monitor"
 test "$serial" && vfb="$vfb, serial=$serial"
-echo "vfb = ['$vfb']" >> /etc/xen/stubdoms/$domname-dm
+echo "vfb = ['$vfb']" >> ${stubdom_configdir}/$domname-dm
 
-echo -n "disk = [ " >> /etc/xen/stubdoms/$domname-dm
+echo -n "disk = [ " >> ${stubdom_configdir}/$domname-dm
 j=0
 for i in `xenstore-ls /local/domain/$domid/device/vbd | grep 'backend =' | awk '{print $3}'`
 do
@@ -126,13 +129,13 @@ do
     vbd_devtype=`xenstore-read $vbd_front/device-type`
     if [ $j -ne 0 ]
     then
-        echo -n "," >> /etc/xen/stubdoms/$domname-dm
+        echo -n "," >> ${stubdom_configdir}/$domname-dm
     fi
-    echo -n "'$vbd_type:$vbd_disk,$vbd_dev:$vbd_devtype,$vbd_mode'" >> /etc/xen/stubdoms/$domname-dm
+    echo -n "'$vbd_type:$vbd_disk,$vbd_dev:$vbd_devtype,$vbd_mode'" >> ${stubdom_configdir}/$domname-dm
     j=$(( $j + 1 ))
 done
-echo " ] " >> /etc/xen/stubdoms/$domname-dm
-echo -n "vif = [ " >> /etc/xen/stubdoms/$domname-dm
+echo " ] " >> ${stubdom_configdir}/$domname-dm
+echo -n "vif = [ " >> ${stubdom_configdir}/$domname-dm
 j=0
 for i in `xenstore-ls /local/domain/$domid/device/vif | grep 'backend =' | awk '{print $3}'`
 do
@@ -141,13 +144,13 @@ do
     vif_mac=`xenstore-read $i/mac`
     if [ $j -ne 0 ]
     then
-        echo -n "," >> /etc/xen/stubdoms/$domname-dm
+        echo -n "," >> ${stubdom_configdir}/$domname-dm
     fi
-    echo -n "'mac=$vif_mac'" >> /etc/xen/stubdoms/$domname-dm
+    echo -n "'mac=$vif_mac'" >> ${stubdom_configdir}/$domname-dm
     j=$(( $j + 1 ))
 done
-echo " ] " >> /etc/xen/stubdoms/$domname-dm
-creation="xm create -c /etc/xen/stubdoms/$domname-dm target=$domid memory=32 extra=\"$extra\""
+echo " ] " >> ${stubdom_configdir}/$domname-dm
+creation="xm create -c ${stubdom_configdir}/$domname-dm target=$domid memory=32 extra=\"$extra\""
 
 (while true ; do sleep 60 ; done) | /bin/sh -c "$creation" &
 #xterm -geometry +0+0 -e /bin/sh -c "$creation ; echo ; echo press ENTER to shut down ; read" &
diff --git a/tools/Makefile b/tools/Makefile
index 0eebb00bd5..89ee9710de 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -97,10 +97,7 @@ ioemu-dir-find:
 	fi
 	set -e; \
 		$(absolutify_xen_root); \
-		PREFIX=$(PREFIX); \
-		XEN_SCRIPT_DIR=$(XEN_SCRIPT_DIR); \
-		export PREFIX; \
-		export XEN_SCRIPT_DIR; \
+		$(buildmakevars2shellvars); \
 		cd ioemu-dir; \
 		./xen-setup $(IOEMU_CONFIGURE_CROSS)
 
@@ -109,6 +106,7 @@ subdir-all-ioemu-dir subdir-install-ioemu-dir: ioemu-dir-find
 subdir-clean-ioemu-dir:
 	set -e; if test -d ioemu-dir/.; then \
 		$(absolutify_xen_root); \
+		$(buildmakevars2shellvars); \
 		$(MAKE) -C ioemu-dir clean; \
 	fi
 
diff --git a/tools/hotplug/Linux/block b/tools/hotplug/Linux/block
index e042a7ef99..f50eeda563 100644
--- a/tools/hotplug/Linux/block
+++ b/tools/hotplug/Linux/block
@@ -377,5 +377,5 @@ mount it read-write in a guest domain."
 esac
 
 # If we've reached here, $t is neither phy nor file, so fire a helper script.
-[ -x /etc/xen/scripts/block-"$t" ] && \
-  /etc/xen/scripts/block-"$t" "$command" $node
+[ -x ${XEN_SCRIPT_DIR}/block-"$t" ] && \
+  ${XEN_SCRIPT_DIR}/block-"$t" "$command" $node
diff --git a/tools/hotplug/Linux/network-bridge b/tools/hotplug/Linux/network-bridge
index 95aaba0c15..676b6a62fd 100644
--- a/tools/hotplug/Linux/network-bridge
+++ b/tools/hotplug/Linux/network-bridge
@@ -2,7 +2,7 @@
 #============================================================================
 # Default Xen network start/stop script.
 # Xend calls a network script when it starts.
-# The script name to use is defined in /etc/xen/xend-config.sxp
+# The script name to use is defined in ${XEN_CONFIG_DIR}/xend-config.sxp
 # in the network-script field.
 #
 # This script creates a bridge (default ${netdev}), adds a device
diff --git a/tools/hotplug/Linux/network-nat b/tools/hotplug/Linux/network-nat
index aab793d93f..10f8d28385 100644
--- a/tools/hotplug/Linux/network-nat
+++ b/tools/hotplug/Linux/network-nat
@@ -2,7 +2,7 @@
 #============================================================================
 # Default Xen network start/stop script when using NAT.
 # Xend calls a network script when it starts.
-# The script name to use is defined in /etc/xen/xend-config.sxp
+# The script name to use is defined in ${XEN_CONFIG_DIR}/xend-config.sxp
 # in the network-script field.
 #
 # Usage:
@@ -18,6 +18,7 @@
 #============================================================================
 
 dir=$(dirname "$0")
+. "$dir/hotplugpath.sh"
 . "$dir/xen-script-common.sh"
 . "$dir/xen-network-common.sh"
 
diff --git a/tools/hotplug/Linux/network-route b/tools/hotplug/Linux/network-route
index 574441e334..0cf85b526a 100644
--- a/tools/hotplug/Linux/network-route
+++ b/tools/hotplug/Linux/network-route
@@ -2,7 +2,7 @@
 #============================================================================
 # Default Xen network start/stop script.
 # Xend calls a network script when it starts.
-# The script name to use is defined in /etc/xen/xend-config.sxp
+# The script name to use is defined in ${XEN_CONFIG_DIR}/xend-config.sxp
 # in the network-script field.
 #
 # Usage:
@@ -17,6 +17,7 @@
 #============================================================================
 
 dir=$(dirname "$0")
+. "$dir/hotplugpath.sh"
 . "$dir/xen-script-common.sh"
 
 evalVariables "$@"
diff --git a/tools/hotplug/Linux/vif-bridge b/tools/hotplug/Linux/vif-bridge
index 1b698d703b..d35144e1e9 100644
--- a/tools/hotplug/Linux/vif-bridge
+++ b/tools/hotplug/Linux/vif-bridge
@@ -1,12 +1,12 @@
 #!/bin/bash
 #============================================================================
-# /etc/xen/vif-bridge
+# ${XEN_SCRIPT_DIR}/vif-bridge
 #
 # Script for configuring a vif in bridged mode.
 # The hotplugging system will call this script if it is specified either in
 # the device configuration given to Xend, or the default Xend configuration
-# in /etc/xen/xend-config.sxp.  If the script is specified in neither of those
-# places, then this script is the default.
+# in ${XEN_CONFIG_DIR}/xend-config.sxp.  If the script is specified in
+# neither of those places, then this script is the default.
 #
 # Usage:
 # vif-bridge (add|remove|online|offline)
diff --git a/tools/hotplug/Linux/vif-nat b/tools/hotplug/Linux/vif-nat
index 75bdf5c444..74743ed761 100644
--- a/tools/hotplug/Linux/vif-nat
+++ b/tools/hotplug/Linux/vif-nat
@@ -1,12 +1,12 @@
 #!/bin/bash
 #============================================================================
-# /etc/xen/vif-nat
+# ${XEN_SCRIPT_DIR}/vif-nat
 #
 # Script for configuring a vif in routed-nat mode.
 # The hotplugging system will call this script if it is specified either in
 # the device configuration given to Xend, or the default Xend configuration
-# in /etc/xen/xend-config.sxp.  If the script is specified in neither of those
-# places, then vif-bridge is the default.
+# in ${XEN_CONFIG_DIR}/xend-config.sxp.  If the script is specified in
+# neither of those places, then vif-bridge is the default.
 #
 # Usage:
 # vif-nat (add|remove|online|offline)
diff --git a/tools/hotplug/Linux/vif-route b/tools/hotplug/Linux/vif-route
index f5fd88ed5a..0cacfcb99e 100644
--- a/tools/hotplug/Linux/vif-route
+++ b/tools/hotplug/Linux/vif-route
@@ -1,12 +1,12 @@
 #!/bin/bash
 #============================================================================
-# /etc/xen/vif-route
+# ${XEN_SCRIPT_DIR}/vif-route
 #
 # Script for configuring a vif in routed mode.
 # The hotplugging system will call this script if it is specified either in
 # the device configuration given to Xend, or the default Xend configuration
-# in /etc/xen/xend-config.sxp.  If the script is specified in neither of those
-# places, then vif-bridge is the default.
+# in ${XEN_CONFIG_DIR}/xend-config.sxp.  If the script is specified in
+# neither of those places, then vif-bridge is the default.
 #
 # Usage:
 # vif-route (add|remove|online|offline)
diff --git a/tools/hotplug/Linux/xen-hotplug-cleanup b/tools/hotplug/Linux/xen-hotplug-cleanup
index 706359d03a..0cb86d27ec 100644
--- a/tools/hotplug/Linux/xen-hotplug-cleanup
+++ b/tools/hotplug/Linux/xen-hotplug-cleanup
@@ -3,7 +3,7 @@
 dir=$(dirname "$0")
 . "$dir/xen-hotplug-common.sh"
 
-# Claim the lock protecting /etc/xen/scripts/block.  This stops a race whereby
+# Claim the lock protecting ${XEN_SCRIPT_DIR}/block.  This stops a race whereby
 # paths in the store would disappear underneath that script as it attempted to
 # read from the store checking for device sharing.
 # Any other scripts that do similar things will have to have their lock
diff --git a/tools/hotplug/Linux/xen-hotplug-common.sh b/tools/hotplug/Linux/xen-hotplug-common.sh
index 980a62704e..d63b7660c6 100644
--- a/tools/hotplug/Linux/xen-hotplug-common.sh
+++ b/tools/hotplug/Linux/xen-hotplug-common.sh
@@ -17,13 +17,14 @@
 
 
 dir=$(dirname "$0")
+. "$dir/hotplugpath.sh"
 . "$dir/logging.sh"
 . "$dir/xen-script-common.sh"
 . "$dir/locking.sh"
 
 exec 2>>/var/log/xen/xen-hotplug.log
 
-export PATH="/sbin:/bin:/usr/bin:/usr/sbin:$PATH"
+export PATH="${BINDIR}:${SBINDIR}:${LIBEXEC}:${PRIVATE_BINDIR}:/sbin:/bin:/usr/bin:/usr/sbin:$PATH"
 export LANG="POSIX"
 unset $(set | grep ^LC_ | cut -d= -f1)
 
diff --git a/tools/hotplug/NetBSD/block-nbsd b/tools/hotplug/NetBSD/block-nbsd
index 915ddb755a..d853e11584 100644
--- a/tools/hotplug/NetBSD/block-nbsd
+++ b/tools/hotplug/NetBSD/block-nbsd
@@ -4,7 +4,10 @@
 # Called by xenbackendd
 # Usage: block xsdir_backend_path state
 
-PATH=/bin:/usr/bin:/sbin:/usr/sbin
+DIR=$(dirname "$0")
+. "${DIR}/hotplugpath.sh"
+
+PATH=${BINDIR}:${SBINDIR}:${LIBEXEC}:${PRIVATE_BINDIR}:/bin:/usr/bin:/sbin:/usr/sbin
 export PATH
 
 error() {
diff --git a/tools/hotplug/NetBSD/vif-bridge-nbsd b/tools/hotplug/NetBSD/vif-bridge-nbsd
index bedb387953..ecfef15012 100644
--- a/tools/hotplug/NetBSD/vif-bridge-nbsd
+++ b/tools/hotplug/NetBSD/vif-bridge-nbsd
@@ -4,7 +4,10 @@
 # Called by xenbackendd
 # Usage: vif-bridge xsdir_backend_path state
 
-PATH=/bin:/usr/bin:/sbin:/usr/sbin
+DIR=$(dirname "$0")
+. "${DIR}/hotplugpath.sh"
+
+PATH=${BINDIR}:${SBINDIR}:${LIBEXEC}:${PRIVATE_BINDIR}:/bin:/usr/bin:/sbin:/usr/sbin
 export PATH
 
 xpath=$1
diff --git a/tools/hotplug/NetBSD/vif-ip-nbsd b/tools/hotplug/NetBSD/vif-ip-nbsd
index d8b5bb9759..ca4fd60580 100644
--- a/tools/hotplug/NetBSD/vif-ip-nbsd
+++ b/tools/hotplug/NetBSD/vif-ip-nbsd
@@ -4,7 +4,10 @@
 # Called by xenbackendd
 # Usage: vif-ip xsdir_backend_path state
 
-PATH=/bin:/usr/bin:/sbin:/usr/sbin
+DIR=$(dirname "$0")
+. "${DIR}/hotplugpath.sh"
+
+PATH=${BINDIR}:${SBINDIR}:${LIBEXEC}:${PRIVATE_BINDIR}:/bin:/usr/bin:/sbin:/usr/sbin
 export PATH
 
 xpath=$1
diff --git a/tools/hotplug/common/Makefile b/tools/hotplug/common/Makefile
index a6e731c1ca..b95bf4ee8b 100644
--- a/tools/hotplug/common/Makefile
+++ b/tools/hotplug/common/Makefile
@@ -1,17 +1,22 @@
-XEN_ROOT = ../../../
+XEN_ROOT = ../../..
 include $(XEN_ROOT)/tools/Rules.mk
 
+HOTPLUGPATH="hotplugpath.sh"
+
 # OS-independent hotplug scripts go in this directory
 
-# Xen script dir and scripts to go there.
-XEN_SCRIPTS =
+# Xen scripts to go there.
+XEN_SCRIPTS = $(HOTPLUGPATH)
 XEN_SCRIPT_DATA =
 
+genpath-target = $(call buildmakevars2file,$(HOTPLUGPATH))
+$(eval $(genpath-target))
+
 .PHONY: all
-all:
+all: build
 
 .PHONY: build
-build:
+build: genpath
 
 .PHONY: install
 install: all install-scripts
@@ -31,3 +36,4 @@ install-scripts:
 
 .PHONY: clean
 clean:
+	rm -f $(HOTPLUGPATH)
diff --git a/tools/python/Makefile b/tools/python/Makefile
index 67edb46306..6fa4d5b00e 100644
--- a/tools/python/Makefile
+++ b/tools/python/Makefile
@@ -14,20 +14,11 @@ I18NSRCFILES = $(shell find xen/xm/ -name '*.py')
 CATALOGS = $(patsubst %,xen/xm/messages/%.mo,$(LINGUAS))
 NLSDIR = $(SHAREDIR)/locale
 XENPATH = "xen/util/path.py"
-  
-.PHONY: build buildpy genpath
-genpath:
-	rm -f $(XENPATH)
-	echo "SBINDIR=\"$(SBINDIR)\"" >> $(XENPATH)
-	echo "BINDIR=\"$(BINDIR)\"" >> $(XENPATH)
-	echo "LIBEXEC=\"$(LIBEXEC)\"" >> $(XENPATH)
-	echo "LIBDIR=\"$(LIBDIR)\"" >> $(XENPATH)
-	echo "SHAREDIR=\"$(SHAREDIR)\"" >> $(XENPATH)
-	echo "PRIVATE_BINDIR=\"$(PRIVATE_BINDIR)\"" >> $(XENPATH)
-	echo "XENFIRMWAREDIR=\"$(XENFIRMWAREDIR)\"" >> $(XENPATH)
-	echo "XEN_CONFIG_DIR=\"$(XEN_CONFIG_DIR)\"" >> $(XENPATH)
-	echo "XEN_SCRIPT_DIR=\"$(XEN_SCRIPT_DIR)\"" >> $(XENPATH)
 
+genpath-target = $(call buildmakevars2file,$(XENPATH))
+$(eval $(genpath-target))
+
+.PHONY: build buildpy
 buildpy: genpath 
 	CC="$(CC)" CFLAGS="$(CFLAGS)" $(PYTHON) setup.py build