tools/debugger: Allow make to recurse into debugger/

Avoid the need for explicite rules to recurse into debugger/* dirs by
adding a Makefile in debugger/.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>

tools/Makefile

@@ -32,8 +32,7 @@ SUBDIRS-$(CONFIG_GOLANG) += golang
 SUBDIRS-y += xl
 SUBDIRS-y += helpers
 SUBDIRS-$(CONFIG_X86) += xenpaging
-SUBDIRS-$(CONFIG_X86) += debugger/gdbsx
-SUBDIRS-$(CONFIG_X86) += debugger/kdd
+SUBDIRS-$(CONFIG_X86) += debugger
 SUBDIRS-$(CONFIG_TESTS) += tests
 
 SUBDIRS-y += python
@@ -272,30 +271,6 @@ subdir-clean-qemu-xen-dir:
 
 subdir-uninstall-qemu-xen-dir: ;
 
-subdir-clean-debugger/gdbsx subdir-distclean-debugger/gdbsx: .phony
-	$(MAKE) -C debugger/gdbsx clean
-
-subdir-install-debugger/gdbsx: .phony
-	$(MAKE) -C debugger/gdbsx install
-
-subdir-all-debugger/gdbsx: .phony
-	$(MAKE) -C debugger/gdbsx all
-
-subdir-uninstall-debugger/gdbsx: .phony
-	$(MAKE) -C debugger/gdbsx uninstall
-
-subdir-clean-debugger/kdd subdir-distclean-debugger/kdd: .phony
-	$(MAKE) -C debugger/kdd clean
-
-subdir-install-debugger/kdd: .phony
-	$(MAKE) -C debugger/kdd install
-
-subdir-uninstall-debugger/kdd: .phony
-	$(MAKE) -C debugger/kdd uninstall
-
-subdir-all-debugger/kdd: .phony
-	$(MAKE) -C debugger/kdd all
-
 subtree-force-update:
 ifeq ($(CONFIG_QEMU_XEN),y)
 	$(MAKE) qemu-xen-dir-force-update

tools/debugger/Makefile

@@ -0,0 +1,8 @@
+XEN_ROOT=$(CURDIR)/../..
+include $(XEN_ROOT)/tools/Rules.mk
+
+SUBDIRS-y := gdbsx
+SUBDIRS-y += kdd
+
+.PHONY: all clean install distclean uninstall
+all clean install distclean uninstall: %: subdirs-%