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 verbose: bool): 

49 args = [ 

50 exe_path, 

51 '-b', 

52 '-r', lvs_script, 

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

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

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

56 '-rd', 'thr=22', 

57 '-rd', 'run_mode=deep', 

58 '-rd', 'spice_net_names=true', 

59 '-rd', 'spice_comments=false', 

60 '-rd', 'scale=false', 

61 '-rd', f"verbose={'true' if verbose else 'false'}", 

62 '-rd', 'schematic_simplify=false', 

63 '-rd', 'net_only=false', 

64 '-rd', 'top_lvl_pins=true', 

65 '-rd', 'combine=false', 

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

67 '-rd', 'purge=false', 

68 '-rd', 'purge_nets=false', 

69 '-rd', 'no_simplify=true', # IHP 

70 ] 

71 rule('Calling KLayout LVS script') 

72 subproc(' '.join(args)) 

73 subproc(log_path) 

74 start = time.time() 

75 

76 proc = subprocess.Popen(args, 

77 stdin=subprocess.DEVNULL, 

78 stdout=subprocess.PIPE, 

79 stderr=subprocess.STDOUT, 

80 universal_newlines=True, 

81 text=True) 

82 with open(log_path, 'w') as f: 

83 while True: 

84 line = proc.stdout.readline() 

85 if not line: 

86 break 

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

88 f.writelines([line]) 

89 proc.wait() 

90 

91 duration = time.time() - start 

92 

93 rule() 

94 

95 if proc.returncode == 0: 

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

97 else: 

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

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