main.py revision 4046 
1# Copyright (c) 2005 The Regents of The University of Michigan
2# All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions are
6# met: redistributions of source code must retain the above copyright
7# notice, this list of conditions and the following disclaimer;
8# redistributions in binary form must reproduce the above copyright
9# notice, this list of conditions and the following disclaimer in the
10# documentation and/or other materials provided with the distribution;
11# neither the name of the copyright holders nor the names of its
12# contributors may be used to endorse or promote products derived from
13# this software without specific prior written permission.
14#
15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26#
27# Authors: Nathan Binkert
28
29import code, optparse, os, socket, sys
30from datetime import datetime
31from attrdict import attrdict
32
33__all__ = [ 'options', 'arguments', 'main' ]
34
35usage="%prog [m5 options] script.py [script options]"
36version="%prog 2.0"
37brief_copyright='''
38Copyright (c) 2001-2006
39The Regents of The University of Michigan
40All Rights Reserved
41'''
42
43# there's only one option parsing done, so make it global and add some
44# helper functions to make it work well.
45parser = optparse.OptionParser(usage=usage, version=version,
46                               description=brief_copyright,
47                               formatter=optparse.TitledHelpFormatter())
48parser.disable_interspersed_args()
49
50# current option group
51group = None
52
53def set_group(*args, **kwargs):
54    '''set the current option group'''
55    global group
56    if not args and not kwargs:
57        group = None
58    else:
59        group = parser.add_option_group(*args, **kwargs)
60
61class splitter(object):
62    def __init__(self, split):
63        self.split = split
64    def __call__(self, option, opt_str, value, parser):
65        getattr(parser.values, option.dest).extend(value.split(self.split))
66
67def add_option(*args, **kwargs):
68    '''add an option to the current option group, or global none set'''
69
70    # if action=split, but allows the option arguments
71    # themselves to be lists separated by the split variable'''
72
73    if kwargs.get('action', None) == 'append' and 'split' in kwargs:
74        split = kwargs.pop('split')
75        kwargs['default'] = []
76        kwargs['type'] = 'string'
77        kwargs['action'] = 'callback'
78        kwargs['callback'] = splitter(split)
79
80    if group:
81        return group.add_option(*args, **kwargs)
82
83    return parser.add_option(*args, **kwargs)
84
85def bool_option(name, default, help):
86    '''add a boolean option called --name and --no-name.
87    Display help depending on which is the default'''
88
89    tname = '--%s' % name
90    fname = '--no-%s' % name
91    dest = name.replace('-', '_')
92    if default:
93        thelp = optparse.SUPPRESS_HELP
94        fhelp = help
95    else:
96        thelp = help
97        fhelp = optparse.SUPPRESS_HELP
98
99    add_option(tname, action="store_true", default=default, help=thelp)
100    add_option(fname, action="store_false", dest=dest, help=fhelp)
101
102# Help options
103add_option('-A', "--authors", action="store_true", default=False,
104    help="Show author information")
105add_option('-C', "--copyright", action="store_true", default=False,
106    help="Show full copyright information")
107add_option('-R', "--readme", action="store_true", default=False,
108    help="Show the readme")
109add_option('-N', "--release-notes", action="store_true", default=False,
110    help="Show the release notes")
111
112# Options for configuring the base simulator
113add_option('-d', "--outdir", metavar="DIR", default=".",
114    help="Set the output directory to DIR [Default: %default]")
115add_option('-i', "--interactive", action="store_true", default=False,
116    help="Invoke the interactive interpreter after running the script")
117add_option("--pdb", action="store_true", default=False,
118    help="Invoke the python debugger before running the script")
119add_option('-p', "--path", metavar="PATH[:PATH]", action='append', split=':',
120    help="Prepend PATH to the system path when invoking the script")
121add_option('-q', "--quiet", action="count", default=0,
122    help="Reduce verbosity")
123add_option('-v', "--verbose", action="count", default=0,
124    help="Increase verbosity")
125
126# Statistics options
127set_group("Statistics Options")
128add_option("--stats-file", metavar="FILE", default="m5stats.txt",
129    help="Sets the output file for statistics [Default: %default]")
130
131# Debugging options
132set_group("Debugging Options")
133add_option("--debug-break", metavar="TIME[,TIME]", action='append', split=',',
134    help="Cycle to create a breakpoint")
135
136# Tracing options
137set_group("Trace Options")
138add_option("--trace-flags", metavar="FLAG[,FLAG]", action='append', split=',',
139    help="Sets the flags for tracing")
140add_option("--trace-start", metavar="TIME", type='int',
141    help="Start tracing at TIME (must be in ticks)")
142add_option("--trace-file", metavar="FILE", default="cout",
143    help="Sets the output file for tracing [Default: %default]")
144add_option("--trace-ignore", metavar="EXPR", action='append', split=':',
145    help="Ignore EXPR sim objects")
146
147# Execution Trace options
148set_group("Execution Trace Options")
149bool_option("speculative", default=True,
150    help="Don't capture speculative instructions")
151bool_option("print-cycle", default=True,
152    help="Don't print cycle numbers in trace output")
153bool_option("print-symbol", default=True,
154    help="Disable PC symbols in trace output")
155bool_option("print-opclass", default=True,
156    help="Don't print op class type in trace output")
157bool_option("print-thread", default=True,
158    help="Don't print thread number in trace output")
159bool_option("print-effaddr", default=True,
160    help="Don't print effective address in trace output")
161bool_option("print-data", default=True,
162    help="Don't print result data in trace output")
163bool_option("print-iregs", default=False,
164    help="Print fetch sequence numbers in trace output")
165bool_option("print-fetch-seq", default=False,
166    help="Print fetch sequence numbers in trace output")
167bool_option("print-cpseq", default=False,
168    help="Print correct path sequence numbers in trace output")
169#bool_option("print-reg-delta", default=False,
170#    help="Print which registers changed to what in trace output")
171bool_option("legion-lock", default=False,
172    help="Compare simulator state with Legion simulator every cycle")
173
174options = attrdict()
175arguments = []
176
177def usage(exitcode=None):
178    parser.print_help()
179    if exitcode is not None:
180        sys.exit(exitcode)
181
182def parse_args():
183    _opts,args = parser.parse_args()
184    opts = attrdict(_opts.__dict__)
185
186    # setting verbose and quiet at the same time doesn't make sense
187    if opts.verbose > 0 and opts.quiet > 0:
188        usage(2)
189
190    # store the verbosity in a single variable.  0 is default,
191    # negative numbers represent quiet and positive values indicate verbose
192    opts.verbose -= opts.quiet
193
194    del opts.quiet
195
196    options.update(opts)
197    arguments.extend(args)
198    return opts,args
199
200def main():
201    import defines
202    import info
203    import internal
204
205    parse_args()
206
207    done = False
208    if options.copyright:
209        done = True
210        print info.LICENSE
211        print
212
213    if options.authors:
214        done = True
215        print 'Author information:'
216        print
217        print info.AUTHORS
218        print
219
220    if options.readme:
221        done = True
222        print 'Readme:'
223        print
224        print info.README
225        print
226
227    if options.release_notes:
228        done = True
229        print 'Release Notes:'
230        print
231        print info.RELEASE_NOTES
232        print
233
234    if done:
235        sys.exit(0)
236
237    if options.verbose >= 0:
238        print "M5 Simulator System"
239        print brief_copyright
240        print
241        print "M5 compiled %s" % internal.main.cvar.compileDate;
242        print "M5 started %s" % datetime.now().ctime()
243        print "M5 executing on %s" % socket.gethostname()
244        print "command line:",
245        for argv in sys.argv:
246            print argv,
247        print
248
249    # check to make sure we can find the listed script
250    if not arguments or not os.path.isfile(arguments[0]):
251        if arguments and not os.path.isfile(arguments[0]):
252            print "Script %s not found" % arguments[0]
253        usage(2)
254
255    # tell C++ about output directory
256    internal.main.setOutputDir(options.outdir)
257
258    # update the system path with elements from the -p option
259    sys.path[0:0] = options.path
260
261    import objects
262
263    # set stats options
264    objects.Statistics.text_file = options.stats_file
265
266    # set debugging options
267    for when in options.debug_break:
268        internal.debug.schedBreakCycle(int(when))
269
270    for flag in options.trace_flags:
271        internal.trace.set(flag)
272
273    if options.trace_start is not None:
274        internal.trace.enabled = False
275        def enable_trace():
276            internal.event.enabled = True
277        internal.event.create(enable_trace, options.trace_start)
278
279    internal.trace.output(options.trace_file)
280
281    for ignore in options.trace_ignore:
282        internal.trace.ignore(ignore)
283
284    # set execution trace options
285    objects.ExecutionTrace.speculative = options.speculative
286    objects.ExecutionTrace.print_cycle = options.print_cycle
287    objects.ExecutionTrace.pc_symbol = options.print_symbol
288    objects.ExecutionTrace.print_opclass = options.print_opclass
289    objects.ExecutionTrace.print_thread = options.print_thread
290    objects.ExecutionTrace.print_effaddr = options.print_effaddr
291    objects.ExecutionTrace.print_data = options.print_data
292    objects.ExecutionTrace.print_iregs = options.print_iregs
293    objects.ExecutionTrace.print_fetchseq = options.print_fetch_seq
294    objects.ExecutionTrace.print_cpseq = options.print_cpseq
295    #objects.ExecutionTrace.print_reg_delta = options.print_reg_delta
296    objects.ExecutionTrace.legion_lockstep = options.legion_lock
297
298    sys.argv = arguments
299    sys.path = [ os.path.dirname(sys.argv[0]) ] + sys.path
300
301    scope = { '__file__' : sys.argv[0],
302              '__name__' : '__m5_main__' }
303
304    # we want readline if we're doing anything interactive
305    if options.interactive or options.pdb:
306        exec "import readline" in scope
307
308    # if pdb was requested, execfile the thing under pdb, otherwise,
309    # just do the execfile normally
310    if options.pdb:
311        from pdb import Pdb
312        debugger = Pdb()
313        debugger.run('execfile("%s")' % sys.argv[0], scope)
314    else:
315        execfile(sys.argv[0], scope)
316
317    # once the script is done
318    if options.interactive:
319        interact = code.InteractiveConsole(scope)
320        interact.interact("M5 Interactive Console")
321
322if __name__ == '__main__':
323    from pprint import pprint
324
325    parse_args()
326
327    print 'opts:'
328    pprint(options, indent=4)
329    print
330
331    print 'args:'
332    pprint(arguments, indent=4)
333