[PATCH 4/5] make: Add subtree-update target

[George Dunlap <george.dunlap@eu.citrix.com>]

subtree-update will update all subtrees according to the current TAG specified
in Config.mk.

Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com>

---
CC: Ian Campbell <ian.campbell@citrix.com>
CC: Ian Jackson <ian.jackson@citrix.com>
---
 Makefile                |    4 ++++
 tools/Makefile          |    9 +++++++++
 tools/firmware/Makefile |    8 ++++++++
 3 files changed, 21 insertions(+)

diff --git a/Makefile b/Makefile
index 41dabbf..b804bcf 100644
--- a/Makefile
+++ b/Makefile
@@ -135,6 +135,10 @@ debball: dist
 rpmball: dist
 	bash ./tools/misc/mkrpm $(XEN_ROOT) $$($(MAKE) -C xen xenversion --no-print-directory)
 
+.PHONY: subtree-update
+subtree-update:
+	$(MAKE) -C tools subtree-update
+
 .PHONY: clean
 clean::
 	$(MAKE) -C xen clean
diff --git a/tools/Makefile b/tools/Makefile
index b6476c9..8725c59 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -240,3 +240,12 @@ subdir-all-debugger/kdd: .phony
 
 subdir-distclean-firmware: .phony
 	$(MAKE) -C firmware distclean
+
+subtree-update:
+ifeq ($(CONFIG_QEMU_XEN),y)
+	$(MAKE) qemu-xen-dir-force-update
+endif
+ifeq ($(CONFIG_QEMU_TRAD),y)
+	$(MAKE) qemu-xen-traditional-dir-force-update
+endif
+	$(MAKE) -C firmware subtree-update
diff --git a/tools/firmware/Makefile b/tools/firmware/Makefile
index 660bacb..377a8cf 100644
--- a/tools/firmware/Makefile
+++ b/tools/firmware/Makefile
@@ -88,3 +88,11 @@ subdir-clean-seabios-dir:
 	set -e; if test -d seabios-dir/.; then \
 		$(MAKE) -C seabios-dir clean; \
 	fi
+
+subtree-update:
+ifeq ($(CONFIG_SEABIOS),y)
+	$(MAKE) seabios-dir-force-update
+endif
+ifeq ($(CONFIG_OVMF),y)
+	$(MAKE) ovmf-dir-force-update
+endif
-- 
1.7.9.5