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 host_platform = _platform.system().lower()
  18 if host_platform.startswith('cygwin'):
  19     host_platform = 'cygwin'
  20
  21 # Search sys.argv[] for a "platform=foo" argument since we don't have
  22 # an 'env' variable at this point.
  23 if 'platform' in SCons.Script.ARGUMENTS:
  24     target_platform = SCons.Script.ARGUMENTS['platform']
  25 else:
  26     target_platform = host_platform
  27
  28 _machine_map = {
  29     'x86': 'x86',
  30     'i386': 'x86',
  31     'i486': 'x86',
  32     'i586': 'x86',
  33     'i686': 'x86',
  34     'BePC': 'x86',
  35     'Intel': 'x86',
  36     'ppc': 'ppc',
  37     'BeBox': 'ppc',
  38     'BeMac': 'ppc',
  39     'AMD64': 'x86_64',
  40     'x86_64': 'x86_64',
  41     'sparc': 'sparc',
  42     'sun4u': 'sparc',
  43 }
  44
  45
  46 # find host_machine value
  47 if 'PROCESSOR_ARCHITECTURE' in os.environ:
  48     host_machine = os.environ['PROCESSOR_ARCHITECTURE']
  49 else:
  50     host_machine = _platform.machine()
  51 host_machine = _machine_map.get(host_machine, 'generic')
  52
  53 default_machine = host_machine
  54 default_toolchain = 'default'
  55
  56 if target_platform == 'windows' and host_platform != 'windows':
  57     default_machine = 'x86'
  58     default_toolchain = 'crossmingw'
  59
  60
  61 # find default_llvm value
  62 if 'LLVM' in os.environ or 'LLVM_CONFIG' in os.environ:
  63     default_llvm = 'yes'
  64 else:
  65     default_llvm = 'no'
  66     try:
  67         if target_platform != 'windows' and \
  68            subprocess.call(['llvm-config', '--version'],
  69                            stdout=subprocess.PIPE) == 0:
  70             default_llvm = 'yes'
  71     except:
  72         pass
  73
  74
  75 #######################################################################
  76 # Common options
  77
  78 def AddOptions(opts):
  79     try:
  80         from SCons.Variables.BoolVariable import BoolVariable as BoolOption
  81     except ImportError:
  82         from SCons.Options.BoolOption import BoolOption
  83     try:
  84         from SCons.Variables.EnumVariable import EnumVariable as EnumOption
  85     except ImportError:
  86         from SCons.Options.EnumOption import EnumOption
  87     opts.Add(EnumOption('build', 'build type', 'debug',
  88                         allowed_values=('debug', 'checked', 'profile',
  89                                         'release')))
  90     opts.Add(BoolOption('verbose', 'verbose output', 'no'))
  91     opts.Add(EnumOption('machine', 'use machine-specific assembly code',
  92                         default_machine,
  93                         allowed_values=('generic', 'ppc', 'x86', 'x86_64')))
  94     opts.Add(EnumOption('platform', 'target platform', host_platform,
  95                         allowed_values=('cygwin', 'darwin', 'freebsd', 'haiku',
  96                                         'linux', 'sunos', 'windows')))
  97     opts.Add(BoolOption('embedded', 'embedded build', 'no'))
  98     opts.Add(BoolOption('analyze',
  99                         'enable static code analysis where available', 'no'))
 100     opts.Add(BoolOption('asan', 'enable Address Sanitizer', 'no'))
 101     opts.Add('toolchain', 'compiler toolchain', default_toolchain)
 102     opts.Add(BoolOption('llvm', 'use LLVM', default_llvm))
 103     opts.Add(BoolOption('openmp', 'EXPERIMENTAL: compile with openmp (swrast)',
 104                         'no'))
 105     opts.Add(BoolOption('debug', 'DEPRECATED: debug build', 'yes'))
 106     opts.Add(BoolOption('profile', 'DEPRECATED: profile build', 'no'))
 107     opts.Add(BoolOption('quiet', 'DEPRECATED: profile build', 'yes'))
 108     opts.Add(BoolOption('swr', 'Build OpenSWR', 'no'))
 109     if host_platform == 'windows':
 110         opts.Add('MSVC_VERSION', 'Microsoft Visual C/C++ version')
 111         opts.Add('MSVC_USE_SCRIPT', 'Microsoft Visual C/C++ vcvarsall script', True)