Remove tools from tech file and have search order preference like spice.

compiler/globals.py

@@ -115,11 +115,13 @@ def init_openram(config_file):
 
     set_spice()
 
-    set_drc()
-
-    set_lvs()
-
-    set_pex()
+    global OPTS
+    OPTS.drc_exe = get_tool("DRC",["calibre","magic"])
+    OPTS.lvs_exe = get_tool("LVS",["calibre","netgen"])
+    OPTS.pex_exe = get_tool("PEX",["calibre","magic"])
+    #set_drc()
+    #set_lvs()
+    #set_pex()
     
 
 def read_config(config_file):
@@ -168,59 +170,25 @@ def find_exe(check_exe):
             return exe
     return None
 
-
-def set_drc():
-    debug.info(2,"Finding DRC tool...")
+def get_tool(tool_type, preferences):
+    """
+    Find which tool we have from a list of preferences and return the full path.
+    """
+    debug.info(2,"Finding {} tool...".format(tool_type))
     global OPTS
 
     if not OPTS.check_lvsdrc:
         debug.info(1,"LVS/DRC/PEX disabled.")
         return
     else:
-        import tech
-        if tech.drc_version != "":
-            OPTS.drc_exe=find_exe(tech.drc_version)
-            if OPTS.drc_exe==None:
-                debug.warning("{0} not found. Unable to perform DRC.".format(tech.drc_version))
-                OPTS.check_lvsdrc = False
+        for name in preferences:
+            exe_name = find_exe(name)
+            if exe_name!=None:
+                debug.info(1, "Using {0}: {1}".format(tool_type,exe_name))
+                return(exe_name)
             else:
-                debug.info(1, "Using DRC: " + OPTS.drc_exe)
-
-
-def set_lvs():
-    debug.info(2,"Finding LVS tool...")
-    global OPTS
-
-    if not OPTS.check_lvsdrc:
-        debug.info(1,"LVS/DRC/PEX disabled.")
-        return
-    else:
-        import tech        
-        if tech.lvs_version != "":
-            OPTS.lvs_exe=find_exe(tech.lvs_version)
-            if OPTS.lvs_exe==None:
-                debug.warning("{0} not found. Unable to perform LVS.".format(tech.lvs_version))
-                OPTS.check_lvsdrc = False
-            else:
-                debug.info(1, "Using LVS: " + OPTS.lvs_exe)
-
-def set_pex():
-    debug.info(2,"Finding PEX tool...")
-    global OPTS
-
-    if not OPTS.check_lvsdrc:
-        debug.info(1,"LVS/DRC/PEX disabled.")
-        return
-    else:
-        import tech
-        if tech.pex_version != "":
-            OPTS.pex_exe=find_exe(tech.pex_version)
-            if OPTS.pex_exe==None:
-                debug.warning("{0} not found. Unable to perform PEX.".format(tech.pex_version))
-                OPTS.check_lvsdrc = False
-            else:
-                debug.info(1, "Using PEX: " + OPTS.pex_exe)
-                
+                debug.info(1, "Could not find {0}, trying next {1} tool.".format(name,tool_type))
+        
 def end_openram():
     """ Clean up openram for a proper exit """
     cleanup_paths()

compiler/openram.py

@@ -16,8 +16,6 @@ import re
 import importlib
 import globals
 
-global OPTS
-
 (OPTS, args) = globals.parse_args()
 
 def print_time(name, now_time, last_time=None):

compiler/verify.py

@@ -10,25 +10,27 @@ If not, OpenRAM will continue as if nothing happened!
 
 import debug
 import tech
+from globals import OPTS
 
-if tech.drc_version=="calibre":
+
+if "calibre" in OPTS.drc_exe:
     from calibre import run_drc
-elif tech.drc_version=="magic":
+elif "magic" in OPTS.drc_exe:
     from magic import run_drc
 else:
     debug.warning("Did not find a supported DRC tool.")
 
-if tech.lvs_version=="calibre":
+if "calibre" in OPTS.lvs_exe:
     from calibre import run_lvs
-elif tech.lvs_version=="netgen":
+elif "netgen" in OPTS.lvs_exe:
     from magic import run_lvs
 else:
     debug.warning("Did not find a supported LVS tool.")
 
 
-if tech.pex_version=="calibre":
+if "calibre" in OPTS.pex_exe:
     from calibre import run_pex
-elif tech.pex_version=="magic":
+elif "magic" in OPTS.pex_exe:
     from magic import run_pex
 else:
     debug.warning("Did not find a supported PEX tool.")

technology/freepdk45/tech/tech.py

@@ -17,10 +17,6 @@ GDS["unit"] = (0.0005,1e-9)
 # default label zoom
 GDS["zoom"] = 0.05
 
-drc_version = "calibre"
-lvs_version = "calibre"
-pex_version = "calibre"
-
 ###################################################
 ##GDS Layer Map
 ###################################################

technology/scn3me_subm/tech/tech.py

@@ -17,10 +17,6 @@ GDS["unit"]=(0.001,1e-6)
 # default label zoom
 GDS["zoom"] = 0.5
 
-drc_version = "magic"
-lvs_version = "netgen"
-pex_version = "magic"
-
 
 ###################################################
 ##GDS Layer Map