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root/radiance/ray/build_utils/load_plat.py
Revision: 1.15
Committed: Thu Mar 10 01:49:56 2016 UTC (8 years, 1 month ago) by schorsch
Content type: text/x-python
Branch: MAIN
Changes since 1.14: +28 -25 lines
Log Message:
SCons build system learns about platform architecture

File Contents

# Content
1
2 import os
3 import sys
4 import platform
5 import ConfigParser
6
7
8 _platdir = 'platform'
9
10
11 def read_plat(env, args, fn):
12 envdict = env.Dictionary().copy()
13 # can't feed ConfigParser the original dict, because it also
14 # contains non-string values.
15 for k,v in envdict.items():
16 if not isinstance(v, str):
17 del envdict[k]
18 cfig = ConfigParser.ConfigParser(envdict)
19 cfig.read(fn)
20 buildvars = [['CC',
21 'TIFFINCLUDE', # where to find preinstalled tifflib headers
22 'TIFFLIB', # where to find a preinstalled tifflib library
23 ], # replace
24 ['CPPPATH', 'CPPDEFINES', 'CPPFLAGS', 'CCFLAGS',
25 'LIBPATH', 'LINKFLAGS',
26 'EZXML_CPPDEFINES', # build flags specific to ezxml.c
27 ]] # append
28 vars = [
29 ['install',
30 ['RAD_BASEDIR', 'RAD_BINDIR', 'RAD_RLIBDIR', 'RAD_MANDIR'],
31 []],
32 ['code',
33 [ # replace
34 ],
35 [ # append
36 'RAD_COMPAT', # theoretically obsolete (src/common/strcmp.c)
37 'RAD_MATHCOMPAT', # erf.c floating point error function
38 'RAD_ARGSCOMPAT', # fixargv0.c for Windows
39 'RAD_NETCOMPAT', # [win_]netproc.c for ranimate
40 'RAD_MLIB', # usually 'm', or any fastlib available
41 'RAD_SOCKETLIB', # ws_2_32 on Windows (VC links it automatically)
42 'RAD_PROCESS', # our process abstraction and win_popen()
43 'RAD_PCALLS', # more custom process abstraction
44 ]],
45 ]
46 if args.get('RAD_DEBUG',0):
47 vars.insert(0, ['debug'] + buildvars)
48 else: vars.insert(0, ['build'] + buildvars)
49 for section in vars:
50 if cfig.has_section(section[0]):
51 for p in section[1]: # single items to replace
52 try: v = cfig.get(section[0], p)
53 except ConfigParser.NoOptionError: continue
54 if section[0] == 'install' and '{' in v:
55 try:
56 vv = v.format(**os.environ)
57 except KeyError: vv = v
58 else: v = vv
59 env[p] = v
60 #print('%s: %s' % (p, env[p]))
61 for p in section[2]: # multiple items to append
62 try: v = cfig.get(section[0], p)
63 except ConfigParser.NoOptionError: continue
64 apply(env.Append,[],{p:env.Split(v)})
65 # XXX Check that basedir exists.
66 for k in ['RAD_BINDIR', 'RAD_RLIBDIR', 'RAD_MANDIR']:
67 if (env.has_key('RAD_BASEDIR') and env.has_key(k)
68 and not os.path.isabs(env[k])):
69 env[k] = os.path.join(env['RAD_BASEDIR'],env[k])
70
71
72 def load_plat(env, args, arch=None):
73 cfgname = 'posix'
74 memmodel, binformat = platform.architecture()
75 platsys = platform.system()
76 print 'Detected platform "%s" (%s).' % (platsys, memmodel)
77 cfgname = platsys + '_' + memmodel[:2]
78 env['RAD_BUILDBIN'] = os.path.join('#scbuild', cfgname, 'bin')
79 env['RAD_BUILDLIB'] = os.path.join('#scbuild', cfgname, 'lib')
80 env['RAD_BUILDOBJ'] = os.path.join('#scbuild', cfgname, 'obj')
81
82 pfn = os.path.join(_platdir, cfgname + '_custom.cfg')
83 if os.path.isfile(pfn):
84 print 'Reading configuration "%s"' % pfn
85 read_plat(env, args, pfn)
86 return 1
87 pfn = os.path.join(_platdir, cfgname + '.cfg')
88 if os.path.isfile(pfn):
89 print 'Reading configuration "%s"' % pfn
90 read_plat(env, args, pfn)
91 return 1
92
93 if os.name == 'posix':
94 pfn = os.path.join(_platdir, 'posix.cfg')
95 if os.path.isfile(pfn):
96 print 'Reading generic configuration "%s".' % pfn
97 read_plat(env, args, pfn)
98 return 1
99
100 print 'Platform "%s", system "%s" not supported yet' % (os.name, sys.platform)
101 sys.exit(2)
102
103
104