main.py revision 5471:576aa675d4e5 
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
30import datetime
31import os
32import socket
33import sys
34
35from util import attrdict
36import config
37import defines
38from options import OptionParser
39import traceflags
40
41__all__ = [ 'options', 'arguments', 'main' ]
42
43def print_list(items, indent=4):
44    line = ' ' * indent
45    for i,item in enumerate(items):
46        if len(line) + len(item) > 76:
47            print line
48            line = ' ' * indent
49
50        if i < len(items) - 1:
51            line += '%s, ' % item
52        else:
53            line += item
54            print line
55
56usage="%prog [m5 options] script.py [script options]"
57version="%prog 2.0"
58brief_copyright='''
59Copyright (c) 2001-2008
60The Regents of The University of Michigan
61All Rights Reserved
62'''
63
64options = OptionParser(usage=usage, version=version,
65                       description=brief_copyright)
66add_option = options.add_option
67set_group = options.set_group
68usage = options.usage
69
70# Help options
71add_option('-A', "--authors", action="store_true", default=False,
72    help="Show author information")
73add_option('-B', "--build-info", action="store_true", default=False,
74    help="Show build information")
75add_option('-C', "--copyright", action="store_true", default=False,
76    help="Show full copyright information")
77add_option('-R', "--readme", action="store_true", default=False,
78    help="Show the readme")
79add_option('-N', "--release-notes", action="store_true", default=False,
80    help="Show the release notes")
81
82# Options for configuring the base simulator
83add_option('-d', "--outdir", metavar="DIR", default=".",
84    help="Set the output directory to DIR [Default: %default]")
85add_option('-i', "--interactive", action="store_true", default=False,
86    help="Invoke the interactive interpreter after running the script")
87add_option("--pdb", action="store_true", default=False,
88    help="Invoke the python debugger before running the script")
89add_option('-p', "--path", metavar="PATH[:PATH]", action='append', split=':',
90    help="Prepend PATH to the system path when invoking the script")
91add_option('-q', "--quiet", action="count", default=0,
92    help="Reduce verbosity")
93add_option('-v', "--verbose", action="count", default=0,
94    help="Increase verbosity")
95
96# Statistics options
97set_group("Statistics Options")
98add_option("--stats-file", metavar="FILE", default="m5stats.txt",
99    help="Sets the output file for statistics [Default: %default]")
100
101# Debugging options
102set_group("Debugging Options")
103add_option("--debug-break", metavar="TIME[,TIME]", action='append', split=',',
104    help="Cycle to create a breakpoint")
105
106# Tracing options
107set_group("Trace Options")
108add_option("--trace-help", action='store_true',
109    help="Print help on trace flags")
110add_option("--trace-flags", metavar="FLAG[,FLAG]", action='append', split=',',
111    help="Sets the flags for tracing (-FLAG disables a flag)")
112add_option("--trace-start", metavar="TIME", type='int',
113    help="Start tracing at TIME (must be in ticks)")
114add_option("--trace-file", metavar="FILE", default="cout",
115    help="Sets the output file for tracing [Default: %default]")
116add_option("--trace-ignore", metavar="EXPR", action='append', split=':',
117    help="Ignore EXPR sim objects")
118
119def main():
120    import defines
121    import event
122    import info
123    import internal
124
125    arguments = options.parse_args()
126
127    done = False
128
129    if options.build_info:
130        done = True
131        print 'Build information:'
132        print
133        print 'compiled %s' % internal.core.cvar.compileDate;
134        print 'started %s' % datetime.datetime.now().ctime()
135        print 'executing on %s' % socket.gethostname()
136        print 'build options:'
137        keys = defines.m5_build_env.keys()
138        keys.sort()
139        for key in keys:
140            val = defines.m5_build_env[key]
141            print '    %s = %s' % (key, val)
142        print
143
144    if options.copyright:
145        done = True
146        print info.LICENSE
147        print
148
149    if options.authors:
150        done = True
151        print 'Author information:'
152        print
153        print info.AUTHORS
154        print
155
156    if options.readme:
157        done = True
158        print 'Readme:'
159        print
160        print info.README
161        print
162
163    if options.release_notes:
164        done = True
165        print 'Release Notes:'
166        print
167        print info.RELEASE_NOTES
168        print
169
170    if options.trace_help:
171        done = True
172        print "Base Flags:"
173        print_list(traceflags.baseFlags, indent=4)
174        print
175        print "Compound Flags:"
176        for flag in traceflags.compoundFlags:
177            if flag == 'All':
178                continue
179            print "    %s:" % flag
180            print_list(traceflags.compoundFlagMap[flag], indent=8)
181            print
182
183    if done:
184        sys.exit(0)
185
186    # setting verbose and quiet at the same time doesn't make sense
187    if options.verbose > 0 and options.quiet > 0:
188        options.usage(2)
189
190    verbose = options.verbose - options.quiet
191    if options.verbose >= 0:
192        print "M5 Simulator System"
193        print brief_copyright
194        print
195        print "M5 compiled %s" % internal.core.cvar.compileDate;
196        print "M5 started %s" % datetime.datetime.now().ctime()
197        print "M5 executing on %s" % socket.gethostname()
198
199        print "M5 revision %s" % internal.core.cvar.hgRev
200        print "M5 commit date %s" % internal.core.cvar.hgDate
201
202        print "command line:",
203        for argv in sys.argv:
204            print argv,
205        print
206
207    # check to make sure we can find the listed script
208    if not arguments or not os.path.isfile(arguments[0]):
209        if arguments and not os.path.isfile(arguments[0]):
210            print "Script %s not found" % arguments[0]
211
212        options.usage(2)
213
214    # tell C++ about output directory
215    internal.core.setOutputDir(options.outdir)
216
217    # update the system path with elements from the -p option
218    sys.path[0:0] = options.path
219
220    import objects
221
222    # set stats options
223    internal.stats.initText(options.stats_file)
224
225    # set debugging options
226    for when in options.debug_break:
227        internal.debug.schedBreakCycle(int(when))
228
229    on_flags = []
230    off_flags = []
231    for flag in options.trace_flags:
232        off = False
233        if flag.startswith('-'):
234            flag = flag[1:]
235            off = True
236        if flag not in traceflags.allFlags:
237            print >>sys.stderr, "invalid trace flag '%s'" % flag
238            sys.exit(1)
239
240        if off:
241            off_flags.append(flag)
242        else:
243            on_flags.append(flag)
244
245    for flag in on_flags:
246        internal.trace.set(flag)
247
248    for flag in off_flags:
249        internal.trace.clear(flag)
250
251    if options.trace_start:
252        def enable_trace():
253            internal.trace.cvar.enabled = True
254        event.create(enable_trace, int(options.trace_start))
255    else:
256        internal.trace.cvar.enabled = True
257
258    internal.trace.output(options.trace_file)
259
260    for ignore in options.trace_ignore:
261        internal.trace.ignore(ignore)
262
263    sys.argv = arguments
264    sys.path = [ os.path.dirname(sys.argv[0]) ] + sys.path
265
266    scope = { '__file__' : sys.argv[0],
267              '__name__' : '__m5_main__' }
268
269    # we want readline if we're doing anything interactive
270    if options.interactive or options.pdb:
271        exec "import readline" in scope
272
273    # if pdb was requested, execfile the thing under pdb, otherwise,
274    # just do the execfile normally
275    if options.pdb:
276        from pdb import Pdb
277        debugger = Pdb()
278        debugger.run('execfile("%s")' % sys.argv[0], scope)
279    else:
280        execfile(sys.argv[0], scope)
281
282    # once the script is done
283    if options.interactive:
284        interact = code.InteractiveConsole(scope)
285        interact.interact("M5 Interactive Console")
286
287if __name__ == '__main__':
288    from pprint import pprint
289
290    parse_args()
291
292    print 'opts:'
293    pprint(options, indent=4)
294    print
295
296    print 'args:'
297    pprint(arguments, indent=4)
298