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# 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
# Steve Reinhardt
import os
import sys
import smartdict
# define a MaxTick parameter
MaxTick = 2**63 - 1
# define this here so we can use it right away if necessary
def errorURL(prefix, s):
try:
import zlib
hashstr = "%x" % zlib.crc32(s)
except:
hashstr = "UnableToHash"
return "For more information see: http://www.m5sim.org/%s/%s" % \
(prefix, hashstr)
# panic() should be called when something happens that should never
# ever happen regardless of what the user does (i.e., an acutal m5
# bug).
def panic(fmt, *args):
print >>sys.stderr, 'panic:', fmt % args
print >>sys.stderr, errorURL('panic',fmt)
sys.exit(1)
# fatal() should be called when the simulation cannot continue due to
# some condition that is the user's fault (bad configuration, invalid
# arguments, etc.) and not a simulator bug.
def fatal(fmt, *args):
print >>sys.stderr, 'fatal:', fmt % args
print >>sys.stderr, errorURL('fatal',fmt)
sys.exit(1)
# force scalars to one-element lists for uniformity
def makeList(objOrList):
if isinstance(objOrList, list):
return objOrList
return [objOrList]
# Prepend given directory to system module search path. We may not
# need this anymore if we can structure our config library more like a
# Python package.
def AddToPath(path):
# if it's a relative path and we know what directory the current
# python script is in, make the path relative to that directory.
if not os.path.isabs(path) and sys.path[0]:
path = os.path.join(sys.path[0], path)
path = os.path.realpath(path)
# sys.path[0] should always refer to the current script's directory,
# so place the new dir right after that.
sys.path.insert(1, path)
# make a SmartDict out of the build options for our local use
build_env = smartdict.SmartDict()
# make a SmartDict out of the OS environment too
env = smartdict.SmartDict()
env.update(os.environ)
# Since we have so many mutual imports in this package, we should:
# 1. Put all intra-package imports at the *bottom* of the file, unless
# they're absolutely needed before that (for top-level statements
# or class attributes). Imports of "trivial" packages that don't
# import other packages (e.g., 'smartdict') can be at the top.
# 2. Never use 'from foo import *' on an intra-package import since
# you can get the wrong result if foo is only partially imported
# at the point you do that (i.e., because foo is in the middle of
# importing *you*).
try:
import internal
except ImportError:
internal = None
try:
import defines
build_env.update(defines.buildEnv)
except ImportError:
defines = None
if internal:
defines.compileDate = internal.core.compileDate
for k,v in internal.core.__dict__.iteritems():
if k.startswith('flag_'):
setattr(defines, k[5:], v)
from event import *
from simulate import *
from main import options, main
import stats
import core
import SimObject
import params
try:
import objects
except ImportError:
objects = None
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