Make purposes argument to gdsMill. Create prefixGDS.py script.

compiler/base/hierarchy_layout.py

@@ -20,6 +20,10 @@ from globals import OPTS
 from vector import vector
 from pin_layout import pin_layout
 from utils import round_to_grid
+try:
+    from tech import special_purposes
+except ImportError:
+    special_purposes = {}
 
 
 class layout():
@@ -777,7 +781,7 @@ class layout():
             debug.info(3, "opening {}".format(self.gds_file))
             self.gds = gdsMill.VlsiLayout(units=GDS["unit"])
             reader = gdsMill.Gds2reader(self.gds)
-            reader.loadFromFile(self.gds_file)
+            reader.loadFromFile(self.gds_file, special_purposes)
         else:
             debug.info(3, "Creating layout structure {}".format(self.name))
             self.gds = gdsMill.VlsiLayout(name=self.name, units=GDS["unit"])
@@ -789,7 +793,7 @@ class layout():
         debug.info(4, "Printing {}".format(gds_file))
         arrayCellLayout = gdsMill.VlsiLayout(units=GDS["unit"])
         reader = gdsMill.Gds2reader(arrayCellLayout, debugToTerminal=1)
-        reader.loadFromFile(gds_file)
+        reader.loadFromFile(gds_file, special_purposes)
 
     def clear_visited(self):
         """ Recursively clear the visited flag """

compiler/gdsMill/gdsMill/gds2reader.py

@@ -669,11 +669,11 @@ class Gds2reader:
         else:
             print("There was an error parsing the GDS header.  Aborting...")
 
-    def loadFromFile(self, fileName):
+    def loadFromFile(self, fileName, special_purposes={}):
         self.fileHandle = open(fileName,"rb")
         self.readGds2()
         self.fileHandle.close()
-        self.layoutObject.initialize()
+        self.layoutObject.initialize(special_purposes)
 
 ##############################################
 

compiler/gdsMill/gdsMill/vlsiLayout.py

@@ -3,7 +3,7 @@ from datetime import *
 import numpy as np
 import math
 import debug
-from tech import use_purpose
+
 
 class VlsiLayout:
     """Class represent a hierarchical layout"""
@@ -81,6 +81,12 @@ class VlsiLayout:
             coordinatesRotate.extend((newX,newY))
         return coordinatesRotate
 
+    def prefixAll(self, prefix):
+        for name in self.structures:
+            if name == self.rootStructureName:
+                continue
+            self.structures[prefix + name] = self.structures[name]
+
     def rename(self,newName):
         # take the root structure and copy it to a new structure with the new name
         self.structures[newName] = self.structures[self.rootStructureName]
@@ -211,15 +217,15 @@ class VlsiLayout:
         del transformPath[-1]
         return
 
-    def initialize(self):
+    def initialize(self, special_purposes={}):
         self.deduceHierarchy()
         # self.traverseTheHierarchy()
         self.populateCoordinateMap()
-        #only ones with text
+        # only ones with text
         for layerNumber in self.layerNumbersInUse:
-            #if layerNumber not in no_pin_shape:
-                if layerNumber in use_purpose:
-                    self.processLabelPins((layerNumber, use_purpose[layerNumber]))
+            # if layerNumber not in no_pin_shape:
+            if layerNumber in special_purposes:
+                self.processLabelPins((layerNumber, special_purposes[layerNumber]))
             else:
                 self.processLabelPins((layerNumber, None))
 

compiler/prefixGDS.py

@@ -0,0 +1,21 @@
+#!/usr/bin/env python3
+
+import sys
+from gdsMill import gdsMill
+
+if len(sys.argv) < 4:
+    print("Script to prefix every instance and structure to create a unique namespace.")
+    print("Usage: {0} prefix in.gds out.gds".format(sys.argv[0]))
+    sys.exit(1)
+
+prefix = sys.argv[1]
+
+gds_file = sys.argv[2]
+arrayCellLayout = gdsMill.VlsiLayout()
+gds = gdsMill.Gds2reader(arrayCellLayout,debugToTerminal = 1)
+gds.loadFromFile(gds_file)
+
+gds.prefixAll(prefix)
+
+writer = gdsMill.Gds2writer(gds)
+writer.writeToFile(sys.argv[3])