1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
#!/usr/bin/env python3
"""explore-kconfig - Obtain build attributes of configuration variants
explore-kconfig obtains build attributes such as ROM or RAM usage of
configuration variants for a given software project. It works on random
configurations (--random) or in the neighbourhood of existing configurations
(--neighbourhood).
Supported projects must be configurable via kconfig and provide a command which
outputs a JSON dict of build attributes on stdout. Use
--{clean,build,attribute}-command to configure explore-kconfig for a project.
explore-kconfig places the experiment results (containing configurations, build
logs, and correspondnig attributes) in the current working directory. Use
analyze-kconfig to build a model once data acquisition is complete.
"""
import argparse
import logging
import os
import sys
from dfatool import kconfig
def main():
parser = argparse.ArgumentParser(
formatter_class=argparse.RawDescriptionHelpFormatter, description=__doc__
)
parser.add_argument(
"--neighbourhood",
type=str,
help="Explore neighbourhood of provided .config file(s)",
)
parser.add_argument(
"--log-level",
default=logging.INFO,
type=lambda level: getattr(logging, level.upper()),
help="Set log level",
)
parser.add_argument(
"--random",
type=int,
help="Explore a number of random configurations (make randconfig)",
)
parser.add_argument(
"--with-neighbourhood",
action="store_true",
help="Explore neighbourhood of successful random configurations",
)
parser.add_argument(
"--clean-command", type=str, help="Clean command", default="make clean"
)
parser.add_argument(
"--build-command", type=str, help="Build command", default="make"
)
parser.add_argument(
"--attribute-command",
type=str,
help="Attribute extraction command",
default="make attributes",
)
parser.add_argument(
"--randconfig-command",
type=str,
help="Randconfig command for --random",
default="make randconfig",
)
parser.add_argument(
"--kconfig-file", type=str, help="Kconfig file", default="Kconfig"
)
parser.add_argument("project_root", type=str, help="Project root directory")
args = parser.parse_args()
if isinstance(args.log_level, int):
logging.basicConfig(level=args.log_level)
else:
print(f"Invalid log level. Setting log level to INFO.", file=sys.stderr)
kconf = kconfig.KConfig(args.project_root)
if args.clean_command:
kconf.clean_command = args.clean_command
if args.build_command:
kconf.build_command = args.build_command
if args.attribute_command:
kconf.attribute_command = args.attribute_command
if args.randconfig_command:
kconf.randconfig_command = args.randconfig_command
if args.kconfig_file:
kconf.kconfig = args.kconfig_file
if args.random:
for i in range(args.random):
logging.info(f"Running randconfig {i+1} of {args.random}")
status = kconf.run_randconfig()
if args.with_neighbourhood and status["success"]:
config_filename = status["config_path"]
logging.info(f"Exploring neighbourhood of {config_filename}")
kconf.run_exploration_from_file(config_filename)
if args.neighbourhood:
# TODO also explore range of numeric options
if os.path.isfile(args.neighbourhood):
kconf.run_exploration_from_file(args.neighbourhood)
elif os.path.isdir(args.neighbourhood):
for filename in os.listdir(args.neighbourhood):
config_filename = f"{args.neighbourhood}/{filename}"
logging.info(f"Exploring neighbourhood of {config_filename}")
kconf.run_exploration_from_file(config_filename)
else:
print(
f"--neighbourhod: Error: {args.neighbourhood} must be a file or directory, but is neither",
file=sys.stderr,
)
if __name__ == "__main__":
main()
|
