1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
#!/usr/bin/python
#
# This script returns 0 when run on a platform supported by the current
# branch of LinuxCNC, and 1 when run on an unsupported platform. It is
# intended to guide build automation on whether or not to try to build.
#
import sys
import subprocess
import re
def detect_kernel_flavor(uname):
try:
f = open("/boot/config-%s" % uname)
except IOError:
print "no kernel configuration found for %s" % uname
sys.exit(1)
l = f.read(-1)
f.close()
config_ipipe = re.search('^CONFIG_IPIPE', l, re.MULTILINE)
config_xeno = re.search('^CONFIG_XENO_', l, re.MULTILINE)
config_rtpreempt = re.search('^CONFIG_PREEMPT_RT', l, re.MULTILINE)
if config_ipipe and not config_xeno and not config_rtpreempt:
return 'rtai'
elif config_ipipe and config_xeno and not config_rtpreempt:
return 'xenomai'
elif not config_ipipe and not config_xeno and config_rtpreempt:
return 'rtpreempt'
else:
return 'vanilla'
# use subprocess.Popen() in this funny way, instead of
# subprocess.check_output(), because check_output() is not in Hardy's
# Python 2.5
arch = subprocess.Popen(['dpkg-architecture', '-qDEB_HOST_ARCH'], stdout=subprocess.PIPE).communicate()[0][:-1]
distributor = subprocess.Popen(['lsb_release', '--id', '--short'], stdout=subprocess.PIPE).communicate()[0][:-1]
release = subprocess.Popen(['lsb_release', '--release', '--short'], stdout=subprocess.PIPE).communicate()[0][:-1]
major, minor = re.split('\.', release)
release_major = int(major)
release_minor = int(minor)
uname = subprocess.Popen(['uname', '-r'], stdout=subprocess.PIPE).communicate()[0][:-1]
kernel_flavor = detect_kernel_flavor(uname)
print "arch =", arch
print "distributor =", distributor
print "release =", release
print " major =", release_major
print " minor =", release_minor
print "uname = %s (%s)" % (uname, kernel_flavor)
if arch != "amd64" and arch != "i386":
print "unsupported architecture!"
sys.exit(1)
if distributor == 'Ubuntu':
if release_major < 10:
print "release is too old!"
sys.exit(1)
if kernel_flavor != 'rtai' and kernel_flavor != 'vanilla':
print "unsupported kernel flavor"
sys.exit(1)
print "this platform is supported!"
sys.exit(0)
|
