373 lines
12 KiB
Python
373 lines
12 KiB
Python
# Copyright (c) 2005 The Regents of The University of Michigan
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# Authors: Nathan Binkert
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import code
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import datetime
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import os
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import socket
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import sys
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__all__ = [ 'options', 'arguments', 'main' ]
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usage="%prog [gem5 options] script.py [script options]"
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version="%prog 2.0"
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brief_copyright=\
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"gem5 is copyrighted software; use the --copyright option for details."
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def parse_options():
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import config
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from options import OptionParser
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options = OptionParser(usage=usage, version=version,
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description=brief_copyright)
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option = options.add_option
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group = options.set_group
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# Help options
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option('-B', "--build-info", action="store_true", default=False,
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help="Show build information")
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option('-C', "--copyright", action="store_true", default=False,
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help="Show full copyright information")
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option('-R', "--readme", action="store_true", default=False,
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help="Show the readme")
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# Options for configuring the base simulator
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option('-d', "--outdir", metavar="DIR", default="m5out",
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help="Set the output directory to DIR [Default: %default]")
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option('-r', "--redirect-stdout", action="store_true", default=False,
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help="Redirect stdout (& stderr, without -e) to file")
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option('-e', "--redirect-stderr", action="store_true", default=False,
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help="Redirect stderr to file")
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option("--stdout-file", metavar="FILE", default="simout",
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help="Filename for -r redirection [Default: %default]")
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option("--stderr-file", metavar="FILE", default="simerr",
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help="Filename for -e redirection [Default: %default]")
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option('-i', "--interactive", action="store_true", default=False,
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help="Invoke the interactive interpreter after running the script")
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option("--pdb", action="store_true", default=False,
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help="Invoke the python debugger before running the script")
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option('-p', "--path", metavar="PATH[:PATH]", action='append', split=':',
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help="Prepend PATH to the system path when invoking the script")
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option('-q', "--quiet", action="count", default=0,
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help="Reduce verbosity")
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option('-v', "--verbose", action="count", default=0,
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help="Increase verbosity")
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# Statistics options
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group("Statistics Options")
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option("--stats-file", metavar="FILE", default="stats.txt",
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help="Sets the output file for statistics [Default: %default]")
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# Configuration Options
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group("Configuration Options")
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option("--dump-config", metavar="FILE", default="config.ini",
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help="Dump configuration output file [Default: %default]")
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# Debugging options
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group("Debugging Options")
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option("--debug-break", metavar="TIME[,TIME]", action='append', split=',',
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help="Cycle to create a breakpoint")
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option("--debug-help", action='store_true',
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help="Print help on trace flags")
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option("--debug-flags", metavar="FLAG[,FLAG]", action='append', split=',',
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help="Sets the flags for tracing (-FLAG disables a flag)")
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option("--remote-gdb-port", type='int', default=7000,
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help="Remote gdb base port (set to 0 to disable listening)")
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# Tracing options
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group("Trace Options")
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option("--trace-start", metavar="TIME", type='int',
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help="Start tracing at TIME (must be in ticks)")
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option("--trace-file", metavar="FILE", default="cout",
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help="Sets the output file for tracing [Default: %default]")
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option("--trace-ignore", metavar="EXPR", action='append', split=':',
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help="Ignore EXPR sim objects")
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# Help options
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group("Help Options")
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option("--list-sim-objects", action='store_true', default=False,
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help="List all built-in SimObjects, their params and default values")
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# load the options.py config file to allow people to set their own
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# default options
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options_file = config.get('options.py')
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if options_file:
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scope = { 'options' : options }
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execfile(options_file, scope)
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arguments = options.parse_args()
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return options,arguments
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def interact(scope):
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banner = "gem5 Interactive Console"
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sys.argv = []
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try:
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from IPython.Shell import IPShellEmbed
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ipshell = IPShellEmbed(banner=banner,user_ns=scope)
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ipshell()
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except ImportError:
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code.InteractiveConsole(scope).interact(banner)
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def main(*args):
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import m5
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import core
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import debug
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import defines
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import event
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import info
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import stats
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import trace
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from util import fatal
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if len(args) == 0:
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options, arguments = parse_options()
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elif len(args) == 2:
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options, arguments = args
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else:
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raise TypeError, "main() takes 0 or 2 arguments (%d given)" % len(args)
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m5.options = options
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def check_tracing():
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if defines.TRACING_ON:
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return
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fatal("Tracing is not enabled. Compile with TRACING_ON")
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if not os.path.isdir(options.outdir):
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os.makedirs(options.outdir)
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# These filenames are used only if the redirect_std* options are set
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stdout_file = os.path.join(options.outdir, options.stdout_file)
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stderr_file = os.path.join(options.outdir, options.stderr_file)
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# Print redirection notices here before doing any redirection
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if options.redirect_stdout and not options.redirect_stderr:
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print "Redirecting stdout and stderr to", stdout_file
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else:
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if options.redirect_stdout:
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print "Redirecting stdout to", stdout_file
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if options.redirect_stderr:
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print "Redirecting stderr to", stderr_file
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# Now redirect stdout/stderr as desired
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if options.redirect_stdout:
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redir_fd = os.open(stdout_file, os. O_WRONLY | os.O_CREAT | os.O_TRUNC)
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os.dup2(redir_fd, sys.stdout.fileno())
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if not options.redirect_stderr:
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os.dup2(redir_fd, sys.stderr.fileno())
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if options.redirect_stderr:
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redir_fd = os.open(stderr_file, os. O_WRONLY | os.O_CREAT | os.O_TRUNC)
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os.dup2(redir_fd, sys.stderr.fileno())
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done = False
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if options.build_info:
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done = True
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print 'Build information:'
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print
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print 'compiled %s' % defines.compileDate;
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print 'build options:'
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keys = defines.buildEnv.keys()
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keys.sort()
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for key in keys:
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val = defines.buildEnv[key]
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print ' %s = %s' % (key, val)
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print
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if options.copyright:
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done = True
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print info.COPYING
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print
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if options.readme:
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done = True
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print 'Readme:'
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print
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print info.README
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print
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if options.debug_help:
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done = True
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check_tracing()
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debug.help()
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if options.list_sim_objects:
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import SimObject
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done = True
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print "SimObjects:"
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objects = SimObject.allClasses.keys()
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objects.sort()
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for name in objects:
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obj = SimObject.allClasses[name]
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print " %s" % obj
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params = obj._params.keys()
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params.sort()
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for pname in params:
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param = obj._params[pname]
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default = getattr(param, 'default', '')
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print " %s" % pname
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if default:
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print " default: %s" % default
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print " desc: %s" % param.desc
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print
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print
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if done:
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sys.exit(0)
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# setting verbose and quiet at the same time doesn't make sense
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if options.verbose > 0 and options.quiet > 0:
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options.usage(2)
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verbose = options.verbose - options.quiet
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if options.verbose >= 0:
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print "gem5 Simulator System. http://gem5.org"
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print brief_copyright
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print
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print "gem5 compiled %s" % defines.compileDate;
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print "gem5 started %s" % \
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datetime.datetime.now().strftime("%b %e %Y %X")
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print "gem5 executing on %s" % socket.gethostname()
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print "command line:",
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for argv in sys.argv:
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print argv,
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print
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# check to make sure we can find the listed script
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if not arguments or not os.path.isfile(arguments[0]):
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if arguments and not os.path.isfile(arguments[0]):
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print "Script %s not found" % arguments[0]
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options.usage(2)
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# tell C++ about output directory
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core.setOutputDir(options.outdir)
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# update the system path with elements from the -p option
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sys.path[0:0] = options.path
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# set stats options
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stats.initText(options.stats_file)
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# set debugging options
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debug.setRemoteGDBPort(options.remote_gdb_port)
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for when in options.debug_break:
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debug.schedBreakCycle(int(when))
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if options.debug_flags:
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check_tracing()
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on_flags = []
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off_flags = []
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for flag in options.debug_flags:
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off = False
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if flag.startswith('-'):
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flag = flag[1:]
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off = True
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if flag not in debug.flags:
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print >>sys.stderr, "invalid debug flag '%s'" % flag
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sys.exit(1)
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if off:
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debug.flags[flag].disable()
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else:
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debug.flags[flag].enable()
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if options.trace_start:
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check_tracing()
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e = event.create(trace.enable, event.Event.Trace_Enable_Pri)
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event.mainq.schedule(e, options.trace_start)
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else:
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trace.enable()
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trace.output(options.trace_file)
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for ignore in options.trace_ignore:
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check_tracing()
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trace.ignore(ignore)
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sys.argv = arguments
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sys.path = [ os.path.dirname(sys.argv[0]) ] + sys.path
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filename = sys.argv[0]
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filedata = file(filename, 'r').read()
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filecode = compile(filedata, filename, 'exec')
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scope = { '__file__' : filename,
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'__name__' : '__m5_main__' }
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# we want readline if we're doing anything interactive
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if options.interactive or options.pdb:
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exec "import readline" in scope
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# if pdb was requested, execfile the thing under pdb, otherwise,
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# just do the execfile normally
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if options.pdb:
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import pdb
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import traceback
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pdb = pdb.Pdb()
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try:
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pdb.run(filecode, scope)
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except SystemExit:
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print "The program exited via sys.exit(). Exit status: ",
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print sys.exc_info()[1]
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except:
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traceback.print_exc()
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print "Uncaught exception. Entering post mortem debugging"
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t = sys.exc_info()[2]
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while t.tb_next is not None:
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t = t.tb_next
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pdb.interaction(t.tb_frame,t)
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else:
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exec filecode in scope
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# once the script is done
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if options.interactive:
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interact(scope)
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if __name__ == '__main__':
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from pprint import pprint
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options, arguments = parse_options()
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print 'opts:'
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pprint(options, indent=4)
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print
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print 'args:'
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pprint(arguments, indent=4)
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