source: rtems-tools/rtemstoolkit/host.py @ 7e85878

5
Last change on this file since 7e85878 was 67d48e2, checked in by Cillian O'Donnell <cpodonnell8@…>, on 08/26/17 at 08:15:50

rtemstoolkit/host.py: Change option to search parent directory in Python3.

This works in Python2.7 and Python3.5. Python2 import searches relative
and absolute paths by default. Python3 searches only absolute paths as default.
The option change searches 1 parent directory relative to the calling function
and has the same meaning in Python2 and Python3.

  • Property mode set to 100644
File size: 3.2 KB
Line 
1#
2# RTEMS Tools Project (http://www.rtems.org/)
3# Copyright 2017 Chris Johns (chrisj@rtems.org)
4# All rights reserved.
5#
6# This file is part of the RTEMS Tools package in 'rtems-tools'.
7#
8# Redistribution and use in source and binary forms, with or without
9# modification, are permitted provided that the following conditions are met:
10#
11# 1. Redistributions of source code must retain the above copyright notice,
12# this list of conditions and the following disclaimer.
13#
14# 2. Redistributions in binary form must reproduce the above copyright notice,
15# this list of conditions and the following disclaimer in the documentation
16# and/or other materials provided with the distribution.
17#
18# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
22# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28# POSSIBILITY OF SUCH DAMAGE.
29#
30
31#
32# Host specifics.
33#
34
35from __future__ import print_function
36
37import os
38
39#
40# Support to handle use in a package and as a unit test.
41# If there is a better way to let us know.
42#
43try:
44    from . import error
45except (ValueError, SystemError):
46    import error
47
48is_windows = False
49platform = None
50name = None
51
52def _load():
53
54    global is_windows
55    global platform
56    global name
57
58    if os.name == 'nt':
59        name = 'windows'
60        is_windows = True
61    elif os.name == 'posix':
62        uname = os.uname()
63        if uname[0].startswith('CYGWIN_NT'):
64            name = 'windows'
65        elif uname[0] == 'Darwin':
66            name = darwin
67        elif uname[0] == 'FreeBSD':
68            name = 'freebsd'
69        elif uname[0] == 'NetBSD':
70            name = netbsd
71        elif uname[0] == 'Linux':
72            name = 'linux'
73        elif uname[0] == 'SunOS':
74            name = 'solaris'
75
76    if name is None:
77        raise error.general('unsupported host type; please add')
78
79    #try:
80    #    try:
81    #        platform = __import__(name, globals(), locals(), ['.'])
82    #    except:
83    #        platform = __import__(name, globals(), locals())
84    #except:
85    #    raise error.general('failed to load %s host support' % (name))
86
87    platform = __import__(name, globals(), locals(), ['.', ''], 1)
88
89    if platform is None:
90        raise error.general('failed to load %s host support' % (name))
91
92def cpus():
93    _load()
94    return platform.cpus()
95
96def overrides():
97    _load()
98    return platform.overrides()
99
100if __name__ == '__main__':
101    import pprint
102    _load()
103    print('Name      : %s' % (name))
104    if is_windows:
105        status = 'Yes'
106    else:
107        status = 'No'
108    print('Windows   : %s' % (status))
109    print('CPUs      : %d' % (cpus()))
110    print('Overrides :')
111    pprint.pprint(overrides())
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