add a command for printing a cleaned up make target database - will be used to analyze package dependencies at some point

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22871 3c298f89-4303-0410-b956-a3cf2f4a3e73

include/subdir.mk

@@ -39,16 +39,18 @@ define subdir
 			+$(if $(BUILD_LOG),set -o pipefail;) $$(SUBMAKE) -C $(1)/$(bd) $(target) BUILD_VARIANT="$(filter-out __default,$(variant))" $(if $(BUILD_LOG),SILENT= 2>&1 | tee $(BUILD_LOG_DIR)/$(1)/$(bd)/$(target).txt) $(if $(findstring $(bd),$($(1)/builddirs-ignore-$(target))), || $(call MESSAGE,   ERROR: $(1)/$(bd) failed to build$(if $(filter-out __default,$(variant)), (build variant: $(variant))).))
         )
         $$(if $(call debug,$(1)/$(bd),v),,.SILENT: $(1)/$(bd)/$(target))
-
-      # legacy targets
-      $(call warn_eval,$(1)/$(bd),l,T,$(1)/$(bd)-$(target): $(1)/$(bd)/$(target))
-      # aliases
-      $(if $(call diralias,$(bd)),$(call warn_eval,$(1)/$(bd),l,T,$(1)/$(call diralias,$(bd))/$(target): $(1)/$(bd)/$(target)))
+      $(if $(DUMP_TARGET_DB),,
+        # legacy targets
+        $(call warn_eval,$(1)/$(bd),l,T,$(1)/$(bd)-$(target): $(1)/$(bd)/$(target))
+        # aliases
+        $(if $(call diralias,$(bd)),$(call warn_eval,$(1)/$(bd),l,T,$(1)/$(call diralias,$(bd))/$(target): $(1)/$(bd)/$(target)))
+	  )
 	)
   )
   $(foreach target,$(SUBTARGETS),$(call subtarget,$(1),$(target)))
 endef
 
+ifndef DUMP_TARGET_DB
 # Parameters: <subdir> <name> <target> <depends> <config options> <stampfile location>
 define stampfile
   $(1)/stamp-$(3):=$(if $(6),$(6),$(STAGING_DIR))/stamp/.$(2)_$(3)$(if $(5),_$(call confvar,$(5)))
@@ -67,3 +69,4 @@ define stampfile
 	@rm -f $$($(1)/stamp-$(3))
 
 endef
+endif

include/toplevel.mk

@@ -114,6 +114,9 @@ tmp/.prereq-build: include/prereq-build.mk
 	}
 	touch $@
 
+printdb: FORCE
+	@$(_SINGLE)$(NO_TRACE_MAKE) -p $@ V=99 DUMP_TARGET_DB=1 2>&1
+
 download: .config FORCE
 	@+$(SUBMAKE) tools/download
 	@+$(SUBMAKE) toolchain/download