common.py

   1 #######################################################################
   2 # Common SCons code
   3
   4 import os
   5 import os.path
   6 import re
   7 import subprocess
   8 import sys
   9 import platform as _platform
  10
  11 import SCons.Script.SConscript
  12
  13
  14 #######################################################################
  15 # Defaults
  16
  17 _platform_map = {
  18         'linux2': 'linux',
  19         'win32': 'windows',
  20 }
  21
  22 default_platform = sys.platform
  23 default_platform = _platform_map.get(default_platform, default_platform)
  24
  25 # Search sys.argv[] for a "platform=foo" argument since we don't have
  26 # an 'env' variable at this point.
  27 if 'platform' in SCons.Script.ARGUMENTS:
  28     selected_platform = SCons.Script.ARGUMENTS['platform']
  29 else:
  30     selected_platform = default_platform
  31
  32 cross_compiling = selected_platform != default_platform
  33
  34 _machine_map = {
  35         'x86': 'x86',
  36         'i386': 'x86',
  37         'i486': 'x86',
  38         'i586': 'x86',
  39         'i686': 'x86',
  40         'ppc' : 'ppc',
  41         'x86_64': 'x86_64',
  42 }
  43
  44
  45 # find default_machine value
  46 if 'PROCESSOR_ARCHITECTURE' in os.environ:
  47         default_machine = os.environ['PROCESSOR_ARCHITECTURE']
  48 else:
  49         default_machine = _platform.machine()
  50 default_machine = _machine_map.get(default_machine, 'generic')
  51 default_toolchain = 'default'
  52
  53 if selected_platform == 'windows' and cross_compiling:
  54     default_machine = 'x86'
  55     default_toolchain = 'crossmingw'
  56
  57
  58 # find default_llvm value
  59 if 'LLVM' in os.environ:
  60     default_llvm = 'yes'
  61 else:
  62     default_llvm = 'no'
  63     try:
  64         if selected_platform != 'windows' and \
  65            subprocess.call(['llvm-config', '--version'], stdout=subprocess.PIPE) == 0:
  66             default_llvm = 'yes'
  67     except:
  68         pass
  69
  70
  71 #######################################################################
  72 # Common options
  73
  74 def AddOptions(opts):
  75         try:
  76                 from SCons.Variables.BoolVariable import BoolVariable as BoolOption
  77         except ImportError:
  78                 from SCons.Options.BoolOption import BoolOption
  79         try:
  80                 from SCons.Variables.EnumVariable import EnumVariable as EnumOption
  81         except ImportError:
  82                 from SCons.Options.EnumOption import EnumOption
  83         opts.Add(EnumOption('build', 'build type', 'debug',
  84                           allowed_values=('debug', 'checked', 'profile', 'release')))
  85         opts.Add(BoolOption('quiet', 'quiet command lines', 'yes'))
  86         opts.Add(EnumOption('machine', 'use machine-specific assembly code', default_machine,
  87                                                                                          allowed_values=('generic', 'ppc', 'x86', 'x86_64')))
  88         opts.Add(EnumOption('platform', 'target platform', default_platform,
  89                                                                                          allowed_values=('linux', 'cell', 'windows', 'winddk', 'wince', 'darwin', 'embedded', 'cygwin', 'sunos5', 'freebsd8')))
  90         opts.Add('toolchain', 'compiler toolchain', default_toolchain)
  91         opts.Add(BoolOption('llvm', 'use LLVM', default_llvm))
  92         opts.Add(BoolOption('debug', 'DEPRECATED: debug build', 'yes'))
  93         opts.Add(BoolOption('profile', 'DEPRECATED: profile build', 'no'))