gem5/src/python/m5/main.py

343 lines
11 KiB
Python
Raw Normal View History

# 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
import traceflags
__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
'''
def print_list(items, indent=4):
line = ' ' * indent
for i,item in enumerate(items):
if len(line) + len(item) > 76:
print line
line = ' ' * indent
if i < len(items) - 1:
line += '%s, ' % item
else:
line += item
print line
# 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-help", action='store_true',
help="Print help on trace flags")
add_option("--trace-flags", metavar="FLAG[,FLAG]", action='append', split=',',
help="Sets the flags for tracing (-FLAG disables a flag)")
add_option("--trace-start", metavar="TIME", type='int',
help="Start tracing at TIME (must be in ticks)")
add_option("--trace-file", metavar="FILE", default="cout",
help="Sets the output file for tracing [Default: %default]")
add_option("--trace-ignore", metavar="EXPR", action='append', split=':',
help="Ignore EXPR sim objects")
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 defines
import event
import info
import internal
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 options.trace_help:
done = True
print "Base Flags:"
print_list(traceflags.baseFlags, indent=4)
print
print "Compound Flags:"
for flag in traceflags.compoundFlags:
if flag == 'All':
continue
print " %s:" % flag
print_list(traceflags.compoundFlagMap[flag], indent=8)
print
if done:
sys.exit(0)
if options.verbose >= 0:
print "M5 Simulator System"
print brief_copyright
print
print "M5 compiled %s" % internal.core.cvar.compileDate;
print "M5 started %s" % datetime.now().ctime()
print "M5 executing on %s" % socket.gethostname()
print "command line:",
for argv in sys.argv:
print argv,
print
# 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
internal.core.setOutputDir(options.outdir)
# update the system path with elements from the -p option
sys.path[0:0] = options.path
import objects
# set stats options
internal.stats.initText(options.stats_file)
# set debugging options
for when in options.debug_break:
internal.debug.schedBreakCycle(int(when))
on_flags = []
off_flags = []
for flag in options.trace_flags:
off = False
if flag.startswith('-'):
flag = flag[1:]
off = True
if flag not in traceflags.allFlags:
print >>sys.stderr, "invalid trace flag '%s'" % flag
sys.exit(1)
if off:
off_flags.append(flag)
else:
on_flags.append(flag)
for flag in on_flags:
internal.trace.set(flag)
for flag in off_flags:
internal.trace.clear(flag)
if options.trace_start:
def enable_trace():
internal.trace.cvar.enabled = True
event.create(enable_trace, int(options.trace_start))
else:
internal.trace.cvar.enabled = True
internal.trace.output(options.trace_file)
for ignore in options.trace_ignore:
internal.trace.ignore(ignore)
sys.argv = arguments
sys.path = [ os.path.dirname(sys.argv[0]) ] + sys.path
scope = { '__file__' : sys.argv[0],
'__name__' : '__m5_main__' }
# we want readline if we're doing anything interactive
if options.interactive or options.pdb:
exec "import readline" in 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)