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 # MSYS2 default platform selection.
  21 if host_platform.startswith('mingw'):
  22     host_platform = 'windows'
  23
  24 # Search sys.argv[] for a "platform=foo" argument since we don't have
  25 # an 'env' variable at this point.
  26 if 'platform' in SCons.Script.ARGUMENTS:
  27     target_platform = SCons.Script.ARGUMENTS['platform']
  28 else:
  29     target_platform = host_platform
  30
  31 _machine_map = {
  32     'x86': 'x86',
  33     'i386': 'x86',
  34     'i486': 'x86',
  35     'i586': 'x86',
  36     'i686': 'x86',
  37     'BePC': 'x86',
  38     'Intel': 'x86',
  39     'ppc': 'ppc',
  40     'BeBox': 'ppc',
  41     'BeMac': 'ppc',
  42     'AMD64': 'x86_64',
  43     'x86_64': 'x86_64',
  44     'sparc': 'sparc',
  45     'sun4u': 'sparc',
  46 }
  47
  48
  49 # find host_machine value
  50 if 'PROCESSOR_ARCHITECTURE' in os.environ:
  51     host_machine = os.environ['PROCESSOR_ARCHITECTURE']
  52 else:
  53     host_machine = _platform.machine()
  54 host_machine = _machine_map.get(host_machine, 'generic')
  55 # MSYS2 default machine selection.
  56 if _platform.system().lower().startswith('mingw') and 'MSYSTEM' in os.environ:
  57     if os.environ['MSYSTEM'] == 'MINGW32':
  58         host_machine = 'x86'
  59     if os.environ['MSYSTEM'] == 'MINGW64':
  60         host_machine = 'x86_64'
  61
  62 default_machine = host_machine
  63 default_toolchain = 'default'
  64 # MSYS2 default toolchain selection.
  65 if _platform.system().lower().startswith('mingw'):
  66     default_toolchain = 'mingw'
  67
  68 if target_platform == 'windows' and host_platform != 'windows':
  69     default_machine = 'x86'
  70     default_toolchain = 'crossmingw'
  71
  72
  73 # find default_llvm value
  74 if 'LLVM' in os.environ or 'LLVM_CONFIG' in os.environ:
  75     default_llvm = 'yes'
  76 else:
  77     default_llvm = 'no'
  78     try:
  79         if target_platform != 'windows' and \
  80            subprocess.call(['llvm-config', '--version'],
  81                            stdout=subprocess.PIPE) == 0:
  82             default_llvm = 'yes'
  83     except:
  84         pass
  85
  86
  87 #######################################################################
  88 # Common options
  89
  90 def AddOptions(opts):
  91     try:
  92         from SCons.Variables.BoolVariable import BoolVariable as BoolOption
  93     except ImportError:
  94         from SCons.Options.BoolOption import BoolOption
  95     try:
  96         from SCons.Variables.EnumVariable import EnumVariable as EnumOption
  97     except ImportError:
  98         from SCons.Options.EnumOption import EnumOption
  99     opts.Add(EnumOption('build', 'build type', 'debug',
 100                         allowed_values=('debug', 'checked', 'profile',
 101                                         'release')))
 102     opts.Add(BoolOption('verbose', 'verbose output', 'no'))
 103     opts.Add(EnumOption('machine', 'use machine-specific assembly code',
 104                         default_machine,
 105                         allowed_values=('generic', 'ppc', 'x86', 'x86_64')))
 106     opts.Add(EnumOption('platform', 'target platform', host_platform,
 107                         allowed_values=('cygwin', 'darwin', 'freebsd', 'haiku',
 108                                         'linux', 'sunos', 'windows')))
 109     opts.Add(BoolOption('embedded', 'embedded build', 'no'))
 110     opts.Add(BoolOption('analyze',
 111                         'enable static code analysis where available', 'no'))
 112     opts.Add(BoolOption('asan', 'enable Address Sanitizer', 'no'))
 113     opts.Add('toolchain', 'compiler toolchain', default_toolchain)
 114     opts.Add(BoolOption('llvm', 'use LLVM', default_llvm))
 115     opts.Add(BoolOption('openmp', 'EXPERIMENTAL: compile with openmp (swrast)',
 116                         'no'))
 117     opts.Add(BoolOption('debug', 'DEPRECATED: debug build', 'yes'))
 118     opts.Add(BoolOption('profile', 'DEPRECATED: profile build', 'no'))
 119     opts.Add(BoolOption('quiet', 'DEPRECATED: profile build', 'yes'))
 120     opts.Add(BoolOption('swr', 'Build OpenSWR', 'no'))
 121     if host_platform == 'windows':
 122         opts.Add('MSVC_VERSION', 'Microsoft Visual C/C++ version')
 123         opts.Add('MSVC_USE_SCRIPT', 'Microsoft Visual C/C++ vcvarsall script', True)