main.py revision 5606 
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
37from options import OptionParser
38
39__all__ = [ 'options', 'arguments', 'main' ]
40
41def print_list(items, indent=4):
42    line = ' ' * indent
43    for i,item in enumerate(items):
44        if len(line) + len(item) > 76:
45            print line
46            line = ' ' * indent
47
48        if i < len(items) - 1:
49            line += '%s, ' % item
50        else:
51            line += item
52            print line
53
54usage="%prog [m5 options] script.py [script options]"
55version="%prog 2.0"
56brief_copyright='''
57Copyright (c) 2001-2008
58The Regents of The University of Michigan
59All Rights Reserved
60'''
61
62options = OptionParser(usage=usage, version=version,
63                       description=brief_copyright)
64add_option = options.add_option
65set_group = options.set_group
66usage = options.usage
67
68# Help options
69add_option('-A', "--authors", action="store_true", default=False,
70    help="Show author information")
71add_option('-B', "--build-info", action="store_true", default=False,
72    help="Show build information")
73add_option('-C', "--copyright", action="store_true", default=False,
74    help="Show full copyright information")
75add_option('-R', "--readme", action="store_true", default=False,
76    help="Show the readme")
77add_option('-N', "--release-notes", action="store_true", default=False,
78    help="Show the release notes")
79
80# Options for configuring the base simulator
81add_option('-d', "--outdir", metavar="DIR", default=".",
82    help="Set the output directory to DIR [Default: %default]")
83add_option('-r', "--redirect-stdout", action="store_true", default=False,
84           help="Redirect stdout (& stderr, without -e) to file")
85add_option('-e', "--redirect-stderr", action="store_true", default=False,
86           help="Redirect stderr to file")
87add_option("--stdout-file", metavar="FILE", default="simout",
88           help="Filename for -r redirection [Default: %default]")
89add_option("--stderr-file", metavar="FILE", default="simerr",
90           help="Filename for -e redirection [Default: %default]")
91add_option('-i', "--interactive", action="store_true", default=False,
92    help="Invoke the interactive interpreter after running the script")
93add_option("--pdb", action="store_true", default=False,
94    help="Invoke the python debugger before running the script")
95add_option('-p', "--path", metavar="PATH[:PATH]", action='append', split=':',
96    help="Prepend PATH to the system path when invoking the script")
97add_option('-q', "--quiet", action="count", default=0,
98    help="Reduce verbosity")
99add_option('-v', "--verbose", action="count", default=0,
100    help="Increase verbosity")
101
102# Statistics options
103set_group("Statistics Options")
104add_option("--stats-file", metavar="FILE", default="m5stats.txt",
105    help="Sets the output file for statistics [Default: %default]")
106
107# Debugging options
108set_group("Debugging Options")
109add_option("--debug-break", metavar="TIME[,TIME]", action='append', split=',',
110    help="Cycle to create a breakpoint")
111add_option("--remote-gdb-port", type='int', default=7000,
112    help="Remote gdb base port")
113
114# Tracing options
115set_group("Trace Options")
116add_option("--trace-help", action='store_true',
117    help="Print help on trace flags")
118add_option("--trace-flags", metavar="FLAG[,FLAG]", action='append', split=',',
119    help="Sets the flags for tracing (-FLAG disables a flag)")
120add_option("--trace-start", metavar="TIME", type='int',
121    help="Start tracing at TIME (must be in ticks)")
122add_option("--trace-file", metavar="FILE", default="cout",
123    help="Sets the output file for tracing [Default: %default]")
124add_option("--trace-ignore", metavar="EXPR", action='append', split=':',
125    help="Ignore EXPR sim objects")
126
127# Help options
128set_group("Help Options")
129add_option("--list-sim-objects", action='store_true', default=False,
130    help="List all built-in SimObjects, their parameters and default values")
131
132def main():
133    import event
134    import info
135    import internal
136
137    # load the options.py config file to allow people to set their own
138    # default options
139    options_file = config.get('options.py')
140    if options_file:
141        scope = { 'options' : options }
142        execfile(options_file, scope)
143
144    arguments = options.parse_args()
145
146    if not os.path.isdir(options.outdir):
147        os.makedirs(options.outdir)
148
149    # These filenames are used only if the redirect_std* options are set
150    stdout_file = os.path.join(options.outdir, options.stdout_file)
151    stderr_file = os.path.join(options.outdir, options.stderr_file)
152
153    # Print redirection notices here before doing any redirection
154    if options.redirect_stdout and not options.redirect_stderr:
155        print "Redirecting stdout and stderr to", stdout_file
156    else:
157        if options.redirect_stdout:
158            print "Redirecting stdout to", stdout_file
159        if options.redirect_stderr:
160            print "Redirecting stderr to", stderr_file
161
162    # Now redirect stdout/stderr as desired
163    if options.redirect_stdout:
164        redir_fd = os.open(stdout_file, os. O_WRONLY | os.O_CREAT | os.O_TRUNC)
165        os.dup2(redir_fd, sys.stdout.fileno())
166        if not options.redirect_stderr:
167            os.dup2(redir_fd, sys.stderr.fileno())
168
169    if options.redirect_stderr:
170        redir_fd = os.open(stderr_file, os. O_WRONLY | os.O_CREAT | os.O_TRUNC)
171        os.dup2(redir_fd, sys.stderr.fileno())
172
173    done = False
174
175    if options.build_info:
176        import defines
177
178        done = True
179        print 'Build information:'
180        print
181        print 'compiled %s' % internal.core.cvar.compileDate;
182        print "revision %s" % internal.core.cvar.hgRev
183        print "commit date %s" % internal.core.cvar.hgDate
184        print 'build options:'
185        keys = defines.m5_build_env.keys()
186        keys.sort()
187        for key in keys:
188            val = defines.m5_build_env[key]
189            print '    %s = %s' % (key, val)
190        print
191
192    if options.copyright:
193        done = True
194        print info.LICENSE
195        print
196
197    if options.authors:
198        done = True
199        print 'Author information:'
200        print
201        print info.AUTHORS
202        print
203
204    if options.readme:
205        done = True
206        print 'Readme:'
207        print
208        print info.README
209        print
210
211    if options.release_notes:
212        done = True
213        print 'Release Notes:'
214        print
215        print info.RELEASE_NOTES
216        print
217
218    if options.trace_help:
219        import traceflags
220
221        done = True
222        print "Base Flags:"
223        print_list(traceflags.baseFlags, indent=4)
224        print
225        print "Compound Flags:"
226        for flag in traceflags.compoundFlags:
227            if flag == 'All':
228                continue
229            print "    %s:" % flag
230            print_list(traceflags.compoundFlagMap[flag], indent=8)
231            print
232
233    if options.list_sim_objects:
234        import SimObject
235        done = True
236        print "SimObjects:"
237        objects = SimObject.allClasses.keys()
238        objects.sort()
239        for name in objects:
240            obj = SimObject.allClasses[name]
241            print "    %s" % obj
242            params = obj._params.keys()
243            params.sort()
244            for pname in params:
245                param = obj._params[pname]
246                default = getattr(param, 'default', '')
247                print "        %s" % pname
248                if default:
249                    print "            default: %s" % default
250                print "            desc: %s" % param.desc
251                print
252            print
253
254    if done:
255        sys.exit(0)
256
257    # setting verbose and quiet at the same time doesn't make sense
258    if options.verbose > 0 and options.quiet > 0:
259        options.usage(2)
260
261    verbose = options.verbose - options.quiet
262    if options.verbose >= 0:
263        print "M5 Simulator System"
264        print brief_copyright
265        print
266        print "M5 compiled %s" % internal.core.cvar.compileDate;
267        print "M5 revision %s" % internal.core.cvar.hgRev
268        print "M5 commit date %s" % internal.core.cvar.hgDate
269
270        print "M5 started %s" % datetime.datetime.now().strftime("%b %e %Y %X")
271        print "M5 executing on %s" % socket.gethostname()
272
273        print "command line:",
274        for argv in sys.argv:
275            print argv,
276        print
277
278    # check to make sure we can find the listed script
279    if not arguments or not os.path.isfile(arguments[0]):
280        if arguments and not os.path.isfile(arguments[0]):
281            print "Script %s not found" % arguments[0]
282
283        options.usage(2)
284
285    # tell C++ about output directory
286    internal.core.setOutputDir(options.outdir)
287
288    # update the system path with elements from the -p option
289    sys.path[0:0] = options.path
290
291    import objects
292
293    # set stats options
294    internal.stats.initText(options.stats_file)
295
296    # set debugging options
297    internal.debug.setRemoteGDBPort(options.remote_gdb_port)
298    for when in options.debug_break:
299        internal.debug.schedBreakCycle(int(when))
300
301    if options.trace_flags:
302        import traceflags
303
304        on_flags = []
305        off_flags = []
306        for flag in options.trace_flags:
307            off = False
308            if flag.startswith('-'):
309                flag = flag[1:]
310                off = True
311            if flag not in traceflags.allFlags:
312                print >>sys.stderr, "invalid trace flag '%s'" % flag
313                sys.exit(1)
314
315            if off:
316                off_flags.append(flag)
317            else:
318                on_flags.append(flag)
319
320        for flag in on_flags:
321            internal.trace.set(flag)
322
323        for flag in off_flags:
324            internal.trace.clear(flag)
325
326    if options.trace_start:
327        def enable_trace():
328            internal.trace.cvar.enabled = True
329
330        e = event.create(enable_trace)
331        event.mainq.schedule(e, options.trace_start)
332    else:
333        internal.trace.cvar.enabled = True
334
335    internal.trace.output(options.trace_file)
336
337    for ignore in options.trace_ignore:
338        internal.trace.ignore(ignore)
339
340    sys.argv = arguments
341    sys.path = [ os.path.dirname(sys.argv[0]) ] + sys.path
342
343    filename = sys.argv[0]
344    filedata = file(filename, 'r').read()
345    filecode = compile(filedata, filename, 'exec')
346    scope = { '__file__' : filename,
347              '__name__' : '__m5_main__' }
348
349    # we want readline if we're doing anything interactive
350    if options.interactive or options.pdb:
351        exec "import readline" in scope
352
353    # if pdb was requested, execfile the thing under pdb, otherwise,
354    # just do the execfile normally
355    if options.pdb:
356        import pdb
357        import traceback
358
359        pdb = pdb.Pdb()
360        try:
361            pdb.run(filecode, scope)
362        except SystemExit:
363            print "The program exited via sys.exit(). Exit status: ",
364            print sys.exc_info()[1]
365        except:
366            traceback.print_exc()
367            print "Uncaught exception. Entering post mortem debugging"
368            t = sys.exc_info()[2]
369            while t.tb_next is not None:
370                t = t.tb_next
371                pdb.interaction(t.tb_frame,t)
372    else:
373        exec filecode in scope
374
375    # once the script is done
376    if options.interactive:
377        interact = code.InteractiveConsole(scope)
378        interact.interact("M5 Interactive Console")
379
380if __name__ == '__main__':
381    from pprint import pprint
382
383    # load the options.py config file to allow people to set their own
384    # default options
385    options_file = config.get('options.py')
386    if options_file:
387        scope = { 'options' : options }
388        execfile(options_file, scope)
389
390    arguments = options.parse_args()
391
392    print 'opts:'
393    pprint(options, indent=4)
394    print
395
396    print 'args:'
397    pprint(arguments, indent=4)
398