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
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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
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28# Steve Reinhardt
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28
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30import os
31import sys
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29# Import useful subpackages of M5, but *only* when run as an m5 30# script. This is mostly to keep backward compatibility with existing 31# scripts while allowing new SCons code to operate properly. |
32
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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*).
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33try: 34 import internal 35except ImportError: 36 internal = None 37
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106try:
107 import defines
108 build_env.update(defines.buildEnv)
109except ImportError:
110 defines = None
111
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38if internal:
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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)
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39 import SimObject 40 import core 41 import objects 42 import params 43 import stats 44 import util |
45 46 from event import *
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119 from simulate import *
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47 from main import options, main
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121 import stats
122 import core
123
124import SimObject
125import params
126
127try:
128 import objects
129except ImportError:
130 objects = None
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48 from simulate import * |
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