mirror of
https://github.com/The-OpenROAD-Project/OpenLane.git
synced 2026-05-29 00:23:55 +08:00
2b355aaab6
* add more information to antenna violations report: + required ratio + partial ratio + violating pin + violating net + metal layer * add --plain-out to print a list of violating pins --------- Co-authored-by: Donn <me@donn.website>
123 lines
4.0 KiB
Python
123 lines
4.0 KiB
Python
# 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.
|
|
import re
|
|
import click
|
|
|
|
|
|
class AntennaViolation:
|
|
def __init__(self, net, pin, required_ratio, partial_ratio, layer):
|
|
self.net = net
|
|
self.pin = pin
|
|
self.required_ratio = float(required_ratio)
|
|
self.partial_ratio = float(partial_ratio)
|
|
self.layer = layer
|
|
self.partial_to_required = self.partial_ratio / self.required_ratio
|
|
|
|
def __lt__(self, other):
|
|
return self.partial_to_required < other.partial_to_required
|
|
|
|
def __str__(self):
|
|
return f"Partial/Required: {self.partial_to_required:5.2f}, Required: {self.required_ratio:8}, Partial: {self.partial_ratio:8}, Net: {self.net}, Pin: {self.pin}, Layer: {self.layer}"
|
|
|
|
|
|
@click.command()
|
|
@click.option(
|
|
"-o",
|
|
"--output",
|
|
required=True,
|
|
type=click.Path(
|
|
exists=False,
|
|
dir_okay=False,
|
|
writable=True,
|
|
),
|
|
help="Output file to store results.",
|
|
)
|
|
@click.option(
|
|
"--plain-out",
|
|
type=click.Path(
|
|
exists=False,
|
|
dir_okay=False,
|
|
writable=True,
|
|
),
|
|
default=None,
|
|
help="If provided, outputs violator pins in a plain, EOL-delimited format to the path specified.",
|
|
)
|
|
@click.argument("report", nargs=1)
|
|
def extract_antenna_violators(output, plain_out, report):
|
|
"""
|
|
Usage: extract_antenna_violators.py -o <output text file> <input ARC report>
|
|
Extracts the list of violating nets from an ARC report file"
|
|
"""
|
|
|
|
net_pattern = re.compile(r"\s*Net:\s*(\S+)")
|
|
required_ratio_pattern = re.compile(r"\s*Required ratio:\s+([\d.]+)")
|
|
partial_ratio_pattern = re.compile(r"\s*Partial area ratio:\s+([\d.]+)")
|
|
layer_pattern = re.compile(r"\s*Layer:\s+(\S+)")
|
|
pin_pattern = re.compile(r"\s*Pin:\s+(\S+)")
|
|
|
|
required_ratio = None
|
|
layer = None
|
|
partial_ratio = None
|
|
required_ratio = None
|
|
pin = None
|
|
net = None
|
|
violations = []
|
|
|
|
with open(report, "r") as f:
|
|
for line in f:
|
|
pin_new = pin_pattern.match(line)
|
|
required_ratio_new = required_ratio_pattern.match(line)
|
|
partial_ratio_new = partial_ratio_pattern.match(line)
|
|
layer_new = layer_pattern.match(line)
|
|
net_new = net_pattern.match(line)
|
|
required_ratio = (
|
|
required_ratio_new.group(1)
|
|
if required_ratio_new is not None
|
|
else required_ratio
|
|
)
|
|
partial_ratio = (
|
|
partial_ratio_new.group(1)
|
|
if partial_ratio_new is not None
|
|
else partial_ratio
|
|
)
|
|
layer = layer_new.group(1) if layer_new is not None else layer
|
|
pin = pin_new.group(1) if pin_new is not None else pin
|
|
net = net_new.group(1) if net_new is not None else net
|
|
|
|
if "VIOLATED" in line:
|
|
violations.append(
|
|
AntennaViolation(
|
|
net=net,
|
|
pin=pin,
|
|
partial_ratio=partial_ratio,
|
|
layer=layer,
|
|
required_ratio=required_ratio,
|
|
)
|
|
)
|
|
|
|
violations.sort(reverse=True)
|
|
with open(output, "w") as f:
|
|
for violation in violations:
|
|
print(violation)
|
|
f.write(f"{violation}\n")
|
|
|
|
if plain_out is not None:
|
|
with open(plain_out, "w") as f:
|
|
for violation in violations:
|
|
f.write(f"{violation.pin}\n")
|
|
|
|
|
|
if __name__ == "__main__":
|
|
extract_antenna_violators()
|