Coverage for klayout_pex/klayout/lvs_runner.py: 96%

1# 

2# -------------------------------------------------------------------------------- 

3# SPDX-FileCopyrightText: 2024 Martin Jan Köhler and Harald Pretl 

4# Johannes Kepler University, Institute for Integrated Circuits. 

5# 

6# This file is part of KPEX  

7# (see https://github.com/martinjankoehler/klayout-pex). 

8# 

9# This program is free software: you can redistribute it and/or modify 

10# it under the terms of the GNU General Public License as published by 

11# the Free Software Foundation, either version 3 of the License, or 

12# (at your option) any later version. 

13# 

14# This program is distributed in the hope that it will be useful, 

15# but WITHOUT ANY WARRANTY; without even the implied warranty of 

16# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 

17# GNU General Public License for more details. 

18# 

19# You should have received a copy of the GNU General Public License 

20# along with this program. If not, see <http://www.gnu.org/licenses/>. 

21# SPDX-License-Identifier: GPL-3.0-or-later 

22# -------------------------------------------------------------------------------- 

23# 

24from __future__ import annotations 

25 

26import os 

27import subprocess 

28import time 

29 

30from ..log import ( 

31 debug, 

32 info, 

33 warning, 

34 error, 

35 subproc, 

36 rule 

37) 

38 

39 

40class LVSRunner: 

41 @staticmethod 

42 def run_klayout_lvs(exe_path: str, 

43 lvs_script: str, 

44 gds_path: str, 

45 schematic_path: str, 

46 log_path: str, 

47 lvsdb_path: str): 

48 args = [ 

49 exe_path, 

50 '-b', 

51 '-r', lvs_script, 

52 '-rd', f"input={os.path.abspath(gds_path)}", 

53 '-rd', f"report={os.path.abspath(lvsdb_path)}", 

54 '-rd', f"schematic={os.path.abspath(schematic_path)}", 

55 '-rd', 'thr=22', 

56 '-rd', 'run_mode=deep', 

57 '-rd', 'spice_net_names=true', 

58 '-rd', 'spice_comments=false', 

59 '-rd', 'scale=false', 

60 '-rd', 'verbose=true', 

61 '-rd', 'schematic_simplify=false', 

62 '-rd', 'net_only=false', 

63 '-rd', 'top_lvl_pins=true', 

64 '-rd', 'combine=false', 

65 '-rd', 'combine_devices=false', # IHP 

66 '-rd', 'purge=false', 

67 '-rd', 'purge_nets=false', 

68 '-rd', 'no_simplify=true', # IHP 

69 ] 

70 info(f"Calling {' '.join(args)}, output file: {log_path}") 

71 rule() 

72 start = time.time() 

73 

74 proc = subprocess.Popen(args, 

75 stdin=subprocess.DEVNULL, 

76 stdout=subprocess.PIPE, 

77 stderr=subprocess.STDOUT, 

78 universal_newlines=True, 

79 text=True) 

80 with open(log_path, 'w') as f: 

81 while True: 

82 line = proc.stdout.readline() 

83 if not line: 

84 break 

85 subproc(line[:-1]) # remove newline 

86 f.writelines([line]) 

87 proc.wait() 

88 

89 duration = time.time() - start 

90 

91 rule() 

92 

93 if proc.returncode == 0: 

94 info(f"klayout LVS succeeded after {'%.4g' % duration}s") 

95 else: 

96 warning(f"klayout LVS failed with status code {proc.returncode} after {'%.4g' % duration}s, " 

97 f"see log file: {log_path}")