• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1# Copyright 2012 the V8 project authors. All rights reserved.
2# Redistribution and use in source and binary forms, with or without
3# modification, are permitted provided that the following conditions are
4# met:
5#
6#     * 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
9#       copyright notice, this list of conditions and the following
10#       disclaimer in the documentation and/or other materials provided
11#       with the distribution.
12#     * Neither the name of Google Inc. nor the names of its
13#       contributors may be used to endorse or promote products derived
14#       from this software without specific prior written permission.
15#
16# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28
29import os
30from os.path import exists
31from os.path import isdir
32from os.path import join
33import platform
34import re
35import subprocess
36import urllib2
37
38
39def GetSuitePaths(test_root):
40  return [ f for f in os.listdir(test_root) if isdir(join(test_root, f)) ]
41
42
43# Reads a file into an array of strings
44def ReadLinesFrom(name):
45  lines = []
46  with open(name) as f:
47    for line in f:
48      if line.startswith('#'): continue
49      if '#' in line:
50        line = line[:line.find('#')]
51      line = line.strip()
52      if not line: continue
53      lines.append(line)
54  return lines
55
56
57def GuessOS():
58  system = platform.system()
59  if system == 'Linux':
60    return 'linux'
61  elif system == 'Darwin':
62    return 'macos'
63  elif system.find('CYGWIN') >= 0:
64    return 'cygwin'
65  elif system == 'Windows' or system == 'Microsoft':
66    # On Windows Vista platform.system() can return 'Microsoft' with some
67    # versions of Python, see http://bugs.python.org/issue1082
68    return 'windows'
69  elif system == 'FreeBSD':
70    return 'freebsd'
71  elif system == 'OpenBSD':
72    return 'openbsd'
73  elif system == 'SunOS':
74    return 'solaris'
75  elif system == 'NetBSD':
76    return 'netbsd'
77  elif system == 'AIX':
78    return 'aix'
79  else:
80    return None
81
82
83def UseSimulator(arch):
84  machine = platform.machine()
85  return (machine and
86      (arch == "mipsel" or arch == "arm" or arch == "arm64") and
87      not arch.startswith(machine))
88
89
90# This will default to building the 32 bit VM even on machines that are
91# capable of running the 64 bit VM.
92def DefaultArch():
93  machine = platform.machine()
94  machine = machine.lower()  # Windows 7 capitalizes 'AMD64'.
95  if machine.startswith('arm'):
96    return 'arm'
97  elif (not machine) or (not re.match('(x|i[3-6])86$', machine) is None):
98    return 'ia32'
99  elif machine == 'i86pc':
100    return 'ia32'
101  elif machine == 'x86_64':
102    return 'ia32'
103  elif machine == 'amd64':
104    return 'ia32'
105  elif machine == 's390x':
106    return 's390'
107  elif machine == 'ppc64':
108    return 'ppc'
109  else:
110    return None
111
112
113def GuessWordsize():
114  if '64' in platform.machine():
115    return '64'
116  else:
117    return '32'
118
119
120def IsWindows():
121  return GuessOS() == 'windows'
122
123
124def URLRetrieve(source, destination):
125  """urllib is broken for SSL connections via a proxy therefore we
126  can't use urllib.urlretrieve()."""
127  if IsWindows():
128    try:
129      # In python 2.7.6 on windows, urlopen has a problem with redirects.
130      # Try using curl instead. Note, this is fixed in 2.7.8.
131      subprocess.check_call(["curl", source, '-k', '-L', '-o', destination])
132      return
133    except:
134      # If there's no curl, fall back to urlopen.
135      print "Curl is currently not installed. Falling back to python."
136      pass
137  with open(destination, 'w') as f:
138    f.write(urllib2.urlopen(source).read())
139
140
141class FrozenDict(dict):
142  def __setitem__(self, *args, **kwargs):
143    raise Exception('Tried to mutate a frozen dict')
144
145  def update(self, *args, **kwargs):
146    raise Exception('Tried to mutate a frozen dict')
147
148
149def Freeze(obj):
150  if isinstance(obj, dict):
151    return FrozenDict((k, Freeze(v)) for k, v in obj.iteritems())
152  elif isinstance(obj, set):
153    return frozenset(obj)
154  elif isinstance(obj, list):
155    return tuple(Freeze(item) for item in obj)
156  else:
157    # Make sure object is hashable.
158    hash(obj)
159    return obj
160