summaryrefslogtreecommitdiff
path: root/src/python/m5/main.py
blob: a757aaf1af88acdc9d9f630aa26d419118a7b18d (plain)
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
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
# Copyright (c) 2005 The Regents of The University of Michigan
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met: redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer;
# redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution;
# neither the name of the copyright holders nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Authors: Nathan Binkert

import code, optparse, os, socket, sys
from datetime import datetime
from attrdict import attrdict

try:
    import info
except ImportError:
    info = None

__all__ = [ 'options', 'arguments', 'main' ]

usage="%prog [m5 options] script.py [script options]"
version="%prog 2.0"
brief_copyright='''
Copyright (c) 2001-2006
The Regents of The University of Michigan
All Rights Reserved
'''

# there's only one option parsing done, so make it global and add some
# helper functions to make it work well.
parser = optparse.OptionParser(usage=usage, version=version,
                               description=brief_copyright,
                               formatter=optparse.TitledHelpFormatter())
parser.disable_interspersed_args()

# current option group
group = None

def set_group(*args, **kwargs):
    '''set the current option group'''
    global group
    if not args and not kwargs:
        group = None
    else:
        group = parser.add_option_group(*args, **kwargs)

class splitter(object):
    def __init__(self, split):
        self.split = split
    def __call__(self, option, opt_str, value, parser):
        getattr(parser.values, option.dest).extend(value.split(self.split))

def add_option(*args, **kwargs):
    '''add an option to the current option group, or global none set'''

    # if action=split, but allows the option arguments
    # themselves to be lists separated by the split variable'''

    if kwargs.get('action', None) == 'append' and 'split' in kwargs:
        split = kwargs.pop('split')
        kwargs['default'] = []
        kwargs['type'] = 'string'
        kwargs['action'] = 'callback'
        kwargs['callback'] = splitter(split)

    if group:
        return group.add_option(*args, **kwargs)

    return parser.add_option(*args, **kwargs)

def bool_option(name, default, help):
    '''add a boolean option called --name and --no-name.
    Display help depending on which is the default'''

    tname = '--%s' % name
    fname = '--no-%s' % name
    dest = name.replace('-', '_')
    if default:
        thelp = optparse.SUPPRESS_HELP
        fhelp = help
    else:
        thelp = help
        fhelp = optparse.SUPPRESS_HELP

    add_option(tname, action="store_true", default=default, help=thelp)
    add_option(fname, action="store_false", dest=dest, help=fhelp)

# Help options
add_option('-A', "--authors", action="store_true", default=False,
    help="Show author information")
add_option('-C', "--copyright", action="store_true", default=False,
    help="Show full copyright information")
add_option('-R', "--readme", action="store_true", default=False,
    help="Show the readme")
add_option('-N', "--release-notes", action="store_true", default=False,
    help="Show the release notes")

# Options for configuring the base simulator
add_option('-d', "--outdir", metavar="DIR", default=".",
    help="Set the output directory to DIR [Default: %default]")
add_option('-i', "--interactive", action="store_true", default=False,
    help="Invoke the interactive interpreter after running the script")
add_option("--pdb", action="store_true", default=False,
    help="Invoke the python debugger before running the script")
add_option('-p', "--path", metavar="PATH[:PATH]", action='append', split=':',
    help="Prepend PATH to the system path when invoking the script")
add_option('-q', "--quiet", action="count", default=0,
    help="Reduce verbosity")
add_option('-v', "--verbose", action="count", default=0,
    help="Increase verbosity")

# Statistics options
set_group("Statistics Options")
add_option("--stats-file", metavar="FILE", default="m5stats.txt",
    help="Sets the output file for statistics [Default: %default]")

# Debugging options
set_group("Debugging Options")
add_option("--debug-break", metavar="TIME[,TIME]", action='append', split=',',
    help="Cycle to create a breakpoint")

# Tracing options
set_group("Trace Options")
add_option("--trace-flags", metavar="FLAG[,FLAG]", action='append', split=',',
    help="Sets the flags for tracing")
add_option("--trace-start", metavar="TIME", default='0s',
    help="Start tracing at TIME (must have units)")
add_option("--trace-file", metavar="FILE", default="cout",
    help="Sets the output file for tracing [Default: %default]")
add_option("--trace-circlebuf", metavar="SIZE", type="int", default=0,
    help="If SIZE is non-zero, turn on the circular buffer with SIZE lines")
add_option("--no-trace-circlebuf", action="store_const", const=0,
    dest='trace_circlebuf', help=optparse.SUPPRESS_HELP)
bool_option("trace-dumponexit", default=False,
    help="Dump trace buffer on exit")
add_option("--trace-ignore", metavar="EXPR", action='append', split=':',
    help="Ignore EXPR sim objects")

# Execution Trace options
set_group("Execution Trace Options")
bool_option("speculative", default=True,
    help="Don't capture speculative instructions")
bool_option("print-cycle", default=True,
    help="Don't print cycle numbers in trace output")
bool_option("print-symbol", default=True,
    help="Disable PC symbols in trace output")
bool_option("print-opclass", default=True,
    help="Don't print op class type in trace output")
bool_option("print-thread", default=True,
    help="Don't print thread number in trace output")
bool_option("print-effaddr", default=True,
    help="Don't print effective address in trace output")
bool_option("print-data", default=True,
    help="Don't print result data in trace output")
bool_option("print-iregs", default=False,
    help="Print fetch sequence numbers in trace output")
bool_option("print-fetch-seq", default=False,
    help="Print fetch sequence numbers in trace output")
bool_option("print-cpseq", default=False,
    help="Print correct path sequence numbers in trace output")

options = attrdict()
arguments = []

def usage(exitcode=None):
    parser.print_help()
    if exitcode is not None:
        sys.exit(exitcode)

def parse_args():
    _opts,args = parser.parse_args()
    opts = attrdict(_opts.__dict__)

    # setting verbose and quiet at the same time doesn't make sense
    if opts.verbose > 0 and opts.quiet > 0:
        usage(2)

    # store the verbosity in a single variable.  0 is default,
    # negative numbers represent quiet and positive values indicate verbose
    opts.verbose -= opts.quiet

    del opts.quiet

    options.update(opts)
    arguments.extend(args)
    return opts,args

def main():
    import cc_main

    parse_args()

    done = False
    if options.copyright:
        done = True
        print info.LICENSE
        print

    if options.authors:
        done = True
        print 'Author information:'
        print
        print info.AUTHORS
        print

    if options.readme:
        done = True
        print 'Readme:'
        print
        print info.README
        print

    if options.release_notes:
        done = True
        print 'Release Notes:'
        print
        print info.RELEASE_NOTES
        print

    if done:
        sys.exit(0)

    if options.verbose >= 0:
        print "M5 Simulator System"
        print brief_copyright
        print
        print "M5 compiled %s" % cc_main.cvar.compileDate;
        print "M5 started %s" % datetime.now().ctime()
        print "M5 executing on %s" % socket.gethostname()

    # check to make sure we can find the listed script
    if not arguments or not os.path.isfile(arguments[0]):
        if arguments and not os.path.isfile(arguments[0]):
            print "Script %s not found" % arguments[0]
        usage(2)

    # tell C++ about output directory
    cc_main.setOutputDir(options.outdir)

    # update the system path with elements from the -p option
    sys.path[0:0] = options.path

    import objects

    # set stats options
    objects.Statistics.text_file = options.stats_file

    # set debugging options
    objects.Debug.break_cycles = options.debug_break

    # set tracing options
    objects.Trace.flags = options.trace_flags
    objects.Trace.start = options.trace_start
    objects.Trace.file = options.trace_file
    objects.Trace.bufsize = options.trace_circlebuf
    objects.Trace.dump_on_exit = options.trace_dumponexit
    objects.Trace.ignore = options.trace_ignore

    # set execution trace options
    objects.ExecutionTrace.speculative = options.speculative
    objects.ExecutionTrace.print_cycle = options.print_cycle
    objects.ExecutionTrace.pc_symbol = options.print_symbol
    objects.ExecutionTrace.print_opclass = options.print_opclass
    objects.ExecutionTrace.print_thread = options.print_thread
    objects.ExecutionTrace.print_effaddr = options.print_effaddr
    objects.ExecutionTrace.print_data = options.print_data
    objects.ExecutionTrace.print_iregs = options.print_iregs
    objects.ExecutionTrace.print_fetchseq = options.print_fetch_seq
    objects.ExecutionTrace.print_cpseq = options.print_cpseq

    sys.argv = arguments
    sys.path = [ os.path.dirname(sys.argv[0]) ] + sys.path

    scope = { '__file__' : sys.argv[0] }

    # we want readline if we're doing anything interactive
    if options.interactive or options.pdb:
        exec("import readline", scope)

    # if pdb was requested, execfile the thing under pdb, otherwise,
    # just do the execfile normally
    if options.pdb:
        from pdb import Pdb
        debugger = Pdb()
        debugger.run('execfile("%s")' % sys.argv[0], scope)
    else:
        execfile(sys.argv[0], scope)

    # once the script is done
    if options.interactive:
        interact = code.InteractiveConsole(scope)
        interact.interact("M5 Interactive Console")

if __name__ == '__main__':
    from pprint import pprint

    parse_args()

    print 'opts:'
    pprint(options, indent=4)
    print

    print 'args:'
    pprint(arguments, indent=4)