#
# RTEMS Tools Project (http://www.rtems.org/)
# Copyright 2010-2017 Chris Johns (chrisj@rtems.org)
# All rights reserved.
#
# This file is part of the RTEMS Tools package in 'rtems-tools'.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
#
# This code is based on what ever doco about spec files I could find and
# RTEMS project's spec files.
#
import multiprocessing
import os
import platform
from rtemstoolkit import path
def cpus():
return multiprocessing.cpu_count()
def overrides():
uname = os.uname()
smp_mflags = ''
ncpus = '%d' % cpus()
if uname[4].startswith('arm'):
cpu = 'arm'
else:
cpu = uname[4]
defines = {
'_ncpus': ('none', 'none', ncpus),
'_os': ('none', 'none', 'linux'),
'_host': ('triplet', 'required', cpu + '-linux-gnu'),
'_host_vendor': ('none', 'none', 'gnu'),
'_host_os': ('none', 'none', 'linux'),
'_host_cpu': ('none', 'none', cpu),
'_host_alias': ('none', 'none', '%{nil}'),
'_host_arch': ('none', 'none', cpu),
'_usr': ('dir', 'required', '/usr'),
'_var': ('dir', 'required', '/var'),
'__bzip2': ('exe', 'required', '/usr/bin/bzip2'),
'__gzip': ('exe', 'required', '/bin/gzip'),
'__tar': ('exe', 'required', '/bin/tar')
}
# Works for LSB distros
try:
distro = platform.dist()[0]
distro_ver = float(platform.dist()[1])
except (AttributeError, ValueError):
# Non LSB distro found, use failover"
distro = ''
pass
# Non LSB - fail over to issue
if distro == '':
try:
issue = open('/etc/issue').read()
distro = issue.split(' ')[0]
distro_ver = float(issue.split(' ')[2])
except:
pass
# Manage distro aliases
if distro in ['centos']:
distro = 'redhat'
elif distro in ['fedora']:
if distro_ver < 17:
distro = 'redhat'
elif distro in ['centos', 'fedora']:
distro = 'redhat'
elif distro in ['Ubuntu', 'ubuntu']:
distro = 'debian'
elif distro in ['Arch']:
distro = 'arch'
elif distro in ['SuSE']:
distro = 'suse'
variations = {
'debian' : { '__bzip2': ('exe', 'required', '/bin/bzip2'),
'__chgrp': ('exe', 'required', '/bin/chgrp'),
'__chown': ('exe', 'required', '/bin/chown'),
'__grep': ('exe', 'required', '/bin/grep'),
'__sed': ('exe', 'required', '/bin/sed') },
'redhat' : { '__bzip2': ('exe', 'required', '/bin/bzip2'),
'__chgrp': ('exe', 'required', '/bin/chgrp'),
'__chown': ('exe', 'required', '/bin/chown'),
'__install_info': ('exe', 'required', '/sbin/install-info'),
'__grep': ('exe', 'required', '/bin/grep'),
'__sed': ('exe', 'required', '/bin/sed'),
'__touch': ('exe', 'required', '/bin/touch') },
'fedora' : { '__chown': ('exe', 'required', '/usr/bin/chown'),
'__install_info': ('exe', 'required', '/usr/sbin/install-info') },
'arch' : { '__gzip': ('exe', 'required', '/usr/bin/gzip'),
'__chown': ('exe', 'required', '/usr/bin/chown') },
'suse' : { '__chgrp': ('exe', 'required', '/usr/bin/chgrp'),
'__chown': ('exe', 'required', '/usr/sbin/chown') },
}
if distro in variations:
for v in variations[distro]:
if path.exists(variations[distro][v][2]):
defines[v] = variations[distro][v]
defines['_build'] = defines['_host']
defines['_build_vendor'] = defines['_host_vendor']
defines['_build_os'] = defines['_host_os']
defines['_build_cpu'] = defines['_host_cpu']
defines['_build_alias'] = defines['_host_alias']
defines['_build_arch'] = defines['_host_arch']
return defines
if __name__ == '__main__':
import pprint
pprint.pprint(cpus())
pprint.pprint(overrides())
