common.py

   1 #######################################################################
   2 # Common SCons code
   3
   4 import os
   5 import os.path
   6 import sys
   7 import platform as _platform
   8
   9
  10 #######################################################################
  11 # Defaults
  12
  13 _platform_map = {
  14         'linux2': 'linux',
  15         'win32': 'winddk',
  16 }
  17
  18 default_platform = sys.platform
  19 default_platform = _platform_map.get(default_platform, default_platform)
  20
  21 _machine_map = {
  22         'x86': 'x86',
  23         'i386': 'x86',
  24         'i486': 'x86',
  25         'i586': 'x86',
  26         'i686': 'x86',
  27         'x86_64': 'x86_64',
  28 }
  29 if 'PROCESSOR_ARCHITECTURE' in os.environ:
  30         default_machine = os.environ['PROCESSOR_ARCHITECTURE']
  31 else:
  32         default_machine = _platform.machine()
  33 default_machine = _machine_map.get(default_machine, 'generic')
  34
  35 if default_platform in ('linux', 'freebsd', 'darwin'):
  36         default_dri = 'yes'
  37 elif default_platform in ('winddk',):
  38         default_dri = 'no'
  39 else:
  40         default_dri = 'no'
  41
  42
  43 #######################################################################
  44 # Common options
  45
  46 def AddOptions(opts):
  47         from SCons.Options.BoolOption import BoolOption
  48         from SCons.Options.EnumOption import EnumOption
  49         opts.Add(BoolOption('debug', 'build debug version', 'no'))
  50         opts.Add(EnumOption('machine', 'use machine-specific assembly code', default_machine,
  51                                                                                          allowed_values=('generic', 'x86', 'x86_64')))
  52         opts.Add(EnumOption('platform', 'target platform', default_platform,
  53                                                                                          allowed_values=('linux', 'cell', 'winddk')))
  54         opts.Add(BoolOption('llvm', 'use LLVM', 'no'))
  55         opts.Add(BoolOption('dri', 'build DRI drivers', default_dri))
  56
  57
  58 #######################################################################
  59 # Convenience Library Builder
  60 # based on the stock StaticLibrary and SharedLibrary builders
  61
  62 import SCons.Action
  63 import SCons.Builder
  64
  65 def createConvenienceLibBuilder(env):
  66     """This is a utility function that creates the ConvenienceLibrary
  67     Builder in an Environment if it is not there already.
  68
  69     If it is already there, we return the existing one.
  70     """
  71
  72     try:
  73         convenience_lib = env['BUILDERS']['ConvenienceLibrary']
  74     except KeyError:
  75         action_list = [ SCons.Action.Action("$ARCOM", "$ARCOMSTR") ]
  76         if env.Detect('ranlib'):
  77             ranlib_action = SCons.Action.Action("$RANLIBCOM", "$RANLIBCOMSTR")
  78             action_list.append(ranlib_action)
  79
  80         convenience_lib = SCons.Builder.Builder(action = action_list,
  81                                   emitter = '$LIBEMITTER',
  82                                   prefix = '$LIBPREFIX',
  83                                   suffix = '$LIBSUFFIX',
  84                                   src_suffix = '$SHOBJSUFFIX',
  85                                   src_builder = 'SharedObject')
  86         env['BUILDERS']['ConvenienceLibrary'] = convenience_lib
  87         env['BUILDERS']['Library'] = convenience_lib
  88
  89     return convenience_lib
  90
  91
  92 #######################################################################
  93 # Build
  94
  95 def make_build_dir(env):
  96         # Put build output in a separate dir, which depends on the current configuration
  97         # See also http://www.scons.org/wiki/AdvancedBuildExample
  98         build_topdir = 'build'
  99         build_subdir = env['platform']
 100         if env['dri']:
 101                 build_subdir += "-dri"
 102         if env['llvm']:
 103                 build_subdir += "-llvm"
 104         if env['machine'] != 'generic':
 105                 build_subdir += '-' + env['machine']
 106         if env['debug']:
 107                 build_subdir += "-debug"
 108         build_dir = os.path.join(build_topdir, build_subdir)
 109         # Place the .sconsign file on the builddir too, to avoid issues with different scons
 110         # versions building the same source file
 111         env.SConsignFile(os.path.join(build_dir, '.sconsign'))
 112         return build_dir
 113