__init__.py revision 6499:312b22c30c16
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# Steve Reinhardt 29 30import os 31import sys 32 33import smartdict 34 35# define a MaxTick parameter 36MaxTick = 2**63 - 1 37 38# define this here so we can use it right away if necessary 39 40def errorURL(prefix, s): 41 try: 42 import zlib 43 hashstr = "%x" % zlib.crc32(s) 44 except: 45 hashstr = "UnableToHash" 46 return "For more information see: http://www.m5sim.org/%s/%s" % \ 47 (prefix, hashstr) 48 49 50# panic() should be called when something happens that should never 51# ever happen regardless of what the user does (i.e., an acutal m5 52# bug). 53def panic(fmt, *args): 54 print >>sys.stderr, 'panic:', fmt % args 55 print >>sys.stderr, errorURL('panic',fmt) 56 sys.exit(1) 57 58# fatal() should be called when the simulation cannot continue due to 59# some condition that is the user's fault (bad configuration, invalid 60# arguments, etc.) and not a simulator bug. 61def fatal(fmt, *args): 62 print >>sys.stderr, 'fatal:', fmt % args 63 print >>sys.stderr, errorURL('fatal',fmt) 64 sys.exit(1) 65 66# force scalars to one-element lists for uniformity 67def makeList(objOrList): 68 if isinstance(objOrList, list): 69 return objOrList 70 return [objOrList] 71 72# Prepend given directory to system module search path. We may not 73# need this anymore if we can structure our config library more like a 74# Python package. 75def AddToPath(path): 76 # if it's a relative path and we know what directory the current 77 # python script is in, make the path relative to that directory. 78 if not os.path.isabs(path) and sys.path[0]: 79 path = os.path.join(sys.path[0], path) 80 path = os.path.realpath(path) 81 # sys.path[0] should always refer to the current script's directory, 82 # so place the new dir right after that. 83 sys.path.insert(1, path) 84 85# make a SmartDict out of the build options for our local use 86build_env = smartdict.SmartDict() 87 88# make a SmartDict out of the OS environment too 89env = smartdict.SmartDict() 90env.update(os.environ) 91 92# Since we have so many mutual imports in this package, we should: 93# 1. Put all intra-package imports at the *bottom* of the file, unless 94# they're absolutely needed before that (for top-level statements 95# or class attributes). Imports of "trivial" packages that don't 96# import other packages (e.g., 'smartdict') can be at the top. 97# 2. Never use 'from foo import *' on an intra-package import since 98# you can get the wrong result if foo is only partially imported 99# at the point you do that (i.e., because foo is in the middle of 100# importing *you*). 101try: 102 import internal 103except ImportError: 104 internal = None 105 106try: 107 import defines 108 build_env.update(defines.buildEnv) 109except ImportError: 110 defines = None 111 112if internal: 113 defines.compileDate = internal.core.compileDate 114 for k,v in internal.core.__dict__.iteritems(): 115 if k.startswith('flag_'): 116 setattr(defines, k[5:], v) 117 118 from event import * 119 from simulate import * 120 from main import options, main 121 import stats 122 import core 123 124import SimObject 125import params 126 127try: 128 import objects 129except ImportError: 130 objects = None 131