69 lines
2.5 KiB
Python
69 lines
2.5 KiB
Python
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#!/usr/bin/env python3
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# -*- Python -*- See copyright, etc below
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# pylint: disable=C0103,C0114,C0115,C0115,C0116,R0914
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######################################################################
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import argparse
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import os
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import subprocess
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import tempfile
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import xml.etree.ElementTree as ET
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# from pprint import pprint, pformat
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#######################################################################
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class VlHierGraph:
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def __init__(self, output_filename='./obj_dir/graph.dot'): # output filename
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self.name_to_number = {}
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xml_temp = "./obj_dir/Vsoc_sim.xml"
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self.next_vertex_number = 0
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self.tree = ET.parse(xml_temp)
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with open(output_filename, "w") as fh:
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# For more serious purposes, use the python graphviz package instead
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fh.write("digraph {\n")
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fh.write(" dpi=300;\n")
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fh.write(" order=LR;\n")
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fh.write(
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" node [fontsize=8 shape=\"box\" margin=0.01 width=0 height=0]"
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)
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fh.write(" edge [fontsize=6]")
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# Find cells
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root = self.tree.getroot()
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netlist = root.find('netlist')
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for module in netlist.findall('module'):
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# origNames are before parameterization, name if after
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mod_name = module.get('name')
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mod_number = self.name_to_vertex_number(mod_name)
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fh.write(" n%d [label=\"%s\"" % (mod_number, mod_name))
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if module.get('topModule'):
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fh.write(" color=\"red\" rank=1")
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fh.write("];\n")
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for instance in module.findall('instance'):
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inst_name = instance.get('name')
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def_name = instance.get('defName')
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def_number = self.name_to_vertex_number(def_name)
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fh.write(" n%d->n%d [label=\"%s\"];\n" %
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(mod_number, def_number, inst_name))
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fh.write("}\n")
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def name_to_vertex_number(self, name):
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if name not in self.name_to_number:
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self.next_vertex_number += 1
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self.name_to_number[name] = self.next_vertex_number
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return self.name_to_number[name]
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#######################################################################
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if __name__ == '__main__':
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fc = VlHierGraph()
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######################################################################
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# Local Variables:
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# compile-command: "./vl_hier_graph -h ; VERILATOR_ROOT=$V4 ./vl_hier_graph +define+thru top.v"
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# End:
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