refactored openroad stuff into OpenROADTool base class. fixed PR suggestions

vlsi/Makefile

@@ -20,28 +20,28 @@ include $(base_dir)/variables.mk
 sim_name           ?= vcs # needed for GenerateSimFiles, but is unused
 tech_name          ?= asap7
 tech_dir           ?= $(if $(filter $(tech_name),asap7 nangate45),\
-												$(vlsi_dir)/hammer/src/hammer-vlsi/technology/$(tech_name), \
-												$(vlsi_dir)/hammer-$(tech_name)-plugin/$(tech_name))
+                        $(vlsi_dir)/hammer/src/hammer-vlsi/technology/$(tech_name), \
+                        $(vlsi_dir)/hammer-$(tech_name)-plugin/$(tech_name))
 SMEMS_COMP         ?= $(tech_dir)/sram-compiler.json
 SMEMS_CACHE        ?= $(tech_dir)/sram-cache.json
 SMEMS_HAMMER       ?= $(build_dir)/$(long_name).mems.hammer.json
 MACROCOMPILER_MODE ?= $(if $(filter $(tech_name),asap7),\
-												--mode synflops,\
-												-l $(SMEMS_CACHE) -hir $(SMEMS_HAMMER) --mode strict)
+                        --mode synflops,\
+                        -l $(SMEMS_CACHE) -hir $(SMEMS_HAMMER) --mode strict)
 ENV_YML            ?= $(vlsi_dir)/env.yml
 INPUT_CONFS        ?= $(if $(filter $(tech_name),nangate45),\
-												example-nangate45.yml,\
-												example.yml)
+                        example-nangate45.yml,\
+                        example.yml)
 HAMMER_EXEC        ?= $(if $(filter $(tech_name),nangate45),\
-												example-vlsi-nangate45,\
-												example-vlsi)
+                        example-vlsi-nangate45,\
+                        example-vlsi)
 VLSI_TOP           ?= $(TOP)
 VLSI_HARNESS_DUT_NAME ?= dut
 VLSI_OBJ_DIR       ?= $(vlsi_dir)/build
-ifneq ($(CUSTOM_VLOG), )
-	OBJ_DIR        ?= $(VLSI_OBJ_DIR)/custom-$(VLSI_TOP)
+ifneq ($(CUSTOM_VLOG),)
+	OBJ_DIR          ?= $(VLSI_OBJ_DIR)/custom-$(VLSI_TOP)
 else
-	OBJ_DIR        ?= $(VLSI_OBJ_DIR)/$(long_name)-$(VLSI_TOP)
+	OBJ_DIR          ?= $(VLSI_OBJ_DIR)/$(long_name)-$(VLSI_TOP)
 endif
 
 #########################################################################################

vlsi/example-nangate45.yml

@@ -1,7 +1,8 @@
 # Technology Setup
-# Technology used is nanagate45
 vlsi.core.technology: nangate45
+
 # Specify dir with ASAP7 tarball
+# TODO: figure out how to remove this, or override it within OpenROADTool
 technology.nangate45.install_dir: "/k/work/OpenROAD-flow/tools/OpenROAD"
 
 vlsi.core.max_threads: 12