blob: d939cef5701db938eea30b873435f0c538606356 [file] [log] [blame]
#!/bin/env python3
# Copyright 2020 Efabless Corporation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# generate_fill.py ---
#
# Run the fill generation on the caravel top level.
#
import sys
import os
import re
import subprocess
def usage():
print("generate_fill.py [layout_name] [-keep]")
return 0
if __name__ == '__main__':
if len(sys.argv) == 1:
usage()
sys.exit(0)
optionlist = []
arguments = []
debugmode = False
keepmode = False
for option in sys.argv[1:]:
if option.find('-', 0) == 0:
optionlist.append(option)
else:
arguments.append(option)
if len(arguments) > 1:
print("Wrong number of arguments given to generate_fill.py.")
usage()
sys.exit(0)
if len(arguments) == 1:
project = arguments[0]
else:
project = 'caravel'
if '-debug' in optionlist:
debugmode = True
if '-keep' in optionlist:
keepmode = True
magdir = '../mag'
rcfile = magdir + '/.magicrc'
with open(magdir + '/generate_fill.tcl', 'w') as ofile:
print('#!/bin/env wish', file=ofile)
print('drc off', file=ofile)
print('load ' + project + ' -dereference', file=ofile)
print('select top cell', file=ofile)
print('expand', file=ofile)
# Flatten into a cell with a new name
print('puts stdout "Flattening layout. . . "', file=ofile)
print('flatten -nolabels ' + project + '_fill_pattern', file=ofile)
print('load ' + project + '_fill_pattern', file=ofile)
# Remove any GDS_FILE reference
print('property GDS_FILE ""', file=ofile)
print('cif ostyle wafflefill', file=ofile)
print('puts stdout "Writing GDS. . . "', file=ofile)
print('gds write ../gds/' + project + '_fill_pattern.gds', file=ofile)
print('quit -noprompt', file=ofile)
myenv = os.environ.copy()
myenv['MAGTYPE'] = 'mag'
mproc = subprocess.run(['magic', '-dnull', '-noconsole',
'-rcfile', rcfile, magdir + '/generate_fill.tcl'],
stdin = subprocess.DEVNULL,
stdout = subprocess.PIPE,
stderr = subprocess.PIPE,
cwd = magdir,
env = myenv,
universal_newlines = True)
if mproc.stdout:
for line in mproc.stdout.splitlines():
print(line)
if mproc.stderr:
print('Error message output from magic:')
for line in mproc.stderr.splitlines():
print(line)
if mproc.returncode != 0:
print('ERROR: Magic exited with status ' + str(mproc.returncode))
if not keepmode:
os.remove(magdir + '/generate_fill.tcl')
exit(0)