makefile: add floorplan_info target

useful when DIE/CORE_AREA is calculated dynamically.

Signed-off-by: Øyvind Harboe <[email protected]>

Author: oharboe

flow/Makefile

@@ -425,6 +425,12 @@ clean_synth:
 .PHONY: floorplan
 floorplan: $(RESULTS_DIR)/2_floorplan.odb \
            $(RESULTS_DIR)/2_floorplan.sdc
+
+.PHONY: floorplan_info
+floorplan_info:
+	@echo DIE_AREA=$(DIE_AREA)
+	@echo CORE_AREA=$(CORE_AREA)
+
 # ==============================================================================
 
 ifneq ($(FOOTPRINT),)