build: always use BASEDIR for xen sub-directory

Modify Makefiles using $(XEN_ROOT)/xen to use $(BASEDIR) instead.

This is removing the dependency to xen subdirectory preventing using a
wrong configuration file when xen subdirectory is duplicated for
compilation tests.

Signed-off-by: Bertrand Marquis <bertrand.marquis@arm.com>
Acked-by: Jan Beulich <jbeulich@suse.com>

xen/common/Makefile

@@ -78,14 +78,14 @@ obj-$(CONFIG_UBSAN) += ubsan/
 obj-$(CONFIG_NEEDS_LIBELF) += libelf/
 obj-$(CONFIG_HAS_DEVICE_TREE) += libfdt/
 
-CONF_FILE := $(if $(patsubst /%,,$(KCONFIG_CONFIG)),$(XEN_ROOT)/xen/)$(KCONFIG_CONFIG)
+CONF_FILE := $(if $(patsubst /%,,$(KCONFIG_CONFIG)),$(BASEDIR)/)$(KCONFIG_CONFIG)
 config.gz: $(CONF_FILE)
 	gzip -c $< >$@
 
 config_data.o: config.gz
 
-config_data.S: $(XEN_ROOT)/xen/tools/binfile
-	$(SHELL) $(XEN_ROOT)/xen/tools/binfile $@ config.gz xen_config_data
+config_data.S: $(BASEDIR)/tools/binfile
+	$(SHELL) $(BASEDIR)/tools/binfile $@ config.gz xen_config_data
 
 clean::
 	rm -f config_data.S config.gz 2>/dev/null

xen/include/xen/lib/x86/Makefile

@@ -3,6 +3,6 @@ include $(XEN_ROOT)/Config.mk
 .PHONY: all
 all: cpuid-autogen.h
 
-cpuid-autogen.h: $(XEN_ROOT)/xen/include/public/arch-x86/cpufeatureset.h $(XEN_ROOT)/xen/tools/gen-cpuid.py
-	$(PYTHON) $(XEN_ROOT)/xen/tools/gen-cpuid.py -i $< -o $@.new
+cpuid-autogen.h: $(BASEDIR)/include/public/arch-x86/cpufeatureset.h $(BASEDIR)/tools/gen-cpuid.py
+	$(PYTHON) $(BASEDIR)/tools/gen-cpuid.py -i $< -o $@.new
 	$(call move-if-changed,$@.new,$@)

xen/tools/kconfig/Makefile.kconfig

@@ -9,7 +9,7 @@ Q :=
 kecho := :
 
 # eventually you'll want to do out of tree builds
-srctree := $(XEN_ROOT)/xen
+srctree := $(BASEDIR)
 objtree := $(srctree)
 src := tools/kconfig
 obj := $(src)

xen/xsm/flask/Makefile

@@ -35,8 +35,8 @@ $(subst include/,%/,$(AV_H_FILES)): $(AV_H_DEPEND) $(mkaccess) FORCE
 obj-bin-$(CONFIG_XSM_FLASK_POLICY) += flask-policy.o
 flask-policy.o: policy.bin
 
-flask-policy.S: $(XEN_ROOT)/xen/tools/binfile
-	$(SHELL) $(XEN_ROOT)/xen/tools/binfile -i $@ policy.bin xsm_flask_init_policy
+flask-policy.S: $(BASEDIR)/tools/binfile
+	$(SHELL) $(BASEDIR)/tools/binfile -i $@ policy.bin xsm_flask_init_policy
 
 FLASK_BUILD_DIR := $(CURDIR)
 POLICY_SRC := $(FLASK_BUILD_DIR)/xenpolicy-$(XEN_FULLVERSION)