__init__.py revision 2632:1bb2f91485ea 
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
27import sys, os
28
29# define this here so we can use it right away if necessary
30def panic(string):
31    print >>sys.stderr, 'panic:', string
32    sys.exit(1)
33
34def m5execfile(f, global_dict):
35    # copy current sys.path
36    oldpath = sys.path[:]
37    # push file's directory onto front of path
38    sys.path.insert(0, os.path.abspath(os.path.dirname(f)))
39    execfile(f, global_dict)
40    # restore original path
41    sys.path = oldpath
42
43# Prepend given directory to system module search path.
44def AddToPath(path):
45    # if it's a relative path and we know what directory the current
46    # python script is in, make the path relative to that directory.
47    if not os.path.isabs(path) and sys.path[0]:
48        path = os.path.join(sys.path[0], path)
49    path = os.path.realpath(path)
50    # sys.path[0] should always refer to the current script's directory,
51    # so place the new dir right after that.
52    sys.path.insert(1, path)
53
54# find the m5 compile options: must be specified as a dict in
55# __main__.m5_build_env.
56import __main__
57if not hasattr(__main__, 'm5_build_env'):
58    panic("__main__ must define m5_build_env")
59
60# make a SmartDict out of the build options for our local use
61import smartdict
62build_env = smartdict.SmartDict()
63build_env.update(__main__.m5_build_env)
64
65# make a SmartDict out of the OS environment too
66env = smartdict.SmartDict()
67env.update(os.environ)
68
69# import the main m5 config code
70from config import *
71
72# import the built-in object definitions
73from objects import *
74
75