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#
# RTEMS Tools Project (http://www.rtems.org/)
# Copyright 2010-2012 Chris Johns (chrisj@rtems.org)
# All rights reserved.
#
# This file is part of the RTEMS Tools package in 'rtems-tools'.
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
#
# This code is based on what ever doco about spec files I could find and
# RTEMS project's spec files.
#
import pprint
import os
import platform
import execute
import path
def load():
uname = os.uname()
smp_mflags = ''
processors = '/bin/grep processor /proc/cpuinfo'
e = execute.capture_execution()
exit_code, proc, output = e.shell(processors)
ncpus = 0
if exit_code == 0:
try:
for l in output.split('\n'):
count = l.split(':')[1].strip()
if int(count) > ncpus:
ncpus = int(count)
except:
pass
ncpus = str(ncpus + 1)
if uname[4].startswith('arm'):
cpu = 'arm'
else:
cpu = uname[4]
version = uname[2]
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_os_version': ('none', 'none', version),
'_host_cpu': ('none', 'none', cpu),
'_host_alias': ('none', 'none', '%{nil}'),
'_host_arch': ('none', 'none', cpu),
'_usr': ('dir', 'required', '/usr'),
'_var': ('dir', 'required', '/var'),
'_prefix': ('dir', 'optional', '/opt'),
'__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 ValueError:
# Non LSB distro found, use failover"
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', 'LinuxMint', 'linuxmint']:
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__':
pprint.pprint(load())
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