buildtools/wafadmin/Tools/gxx.py

   1 #!/usr/bin/env python
   2 # encoding: utf-8
   3 # Thomas Nagy, 2006 (ita)
   4 # Ralf Habacker, 2006 (rh)
   5 # Yinon Ehrlich, 2009
   6
   7 import os, sys
   8 import Configure, Options, Utils
   9 import ccroot, ar
  10 from Configure import conftest
  11
  12 @conftest
  13 def find_gxx(conf):
  14         cxx = conf.find_program(['g++', 'c++'], var='CXX', mandatory=True)
  15         cxx = conf.cmd_to_list(cxx)
  16         ccroot.get_cc_version(conf, cxx, gcc=True)
  17         conf.env.CXX_NAME = 'gcc'
  18         conf.env.CXX      = cxx
  19
  20 @conftest
  21 def gxx_common_flags(conf):
  22         v = conf.env
  23
  24         # CPPFLAGS CXXDEFINES _CXXINCFLAGS _CXXDEFFLAGS
  25         v['CXXFLAGS_DEBUG'] = ['-g']
  26         v['CXXFLAGS_RELEASE'] = ['-O2']
  27
  28         v['CXX_SRC_F']           = ''
  29         v['CXX_TGT_F']           = ['-c', '-o', ''] # shell hack for -MD
  30         v['CPPPATH_ST']          = '-I%s' # template for adding include paths
  31
  32         # linker
  33         if not v['LINK_CXX']: v['LINK_CXX'] = v['CXX']
  34         v['CXXLNK_SRC_F']        = ''
  35         v['CXXLNK_TGT_F']        = ['-o', ''] # shell hack for -MD
  36
  37         v['LIB_ST']              = '-l%s' # template for adding libs
  38         v['LIBPATH_ST']          = '-L%s' # template for adding libpaths
  39         v['STATICLIB_ST']        = '-l%s'
  40         v['STATICLIBPATH_ST']    = '-L%s'
  41         v['RPATH_ST']            = '-Wl,-rpath,%s'
  42         v['CXXDEFINES_ST']       = '-D%s'
  43
  44         v['SONAME_ST']           = '-Wl,-h,%s'
  45         v['SHLIB_MARKER']        = '-Wl,-Bdynamic'
  46         v['STATICLIB_MARKER']    = '-Wl,-Bstatic'
  47         v['FULLSTATIC_MARKER']   = '-static'
  48
  49         # program
  50         v['program_PATTERN']     = '%s'
  51
  52         # shared library
  53         v['shlib_CXXFLAGS']      = ['-fPIC', '-DPIC'] # avoid using -DPIC, -fPIC aleady defines the __PIC__ macro
  54         v['shlib_LINKFLAGS']     = ['-shared']
  55         v['shlib_PATTERN']       = 'lib%s.so'
  56
  57         # static lib
  58         v['staticlib_LINKFLAGS'] = ['-Wl,-Bstatic']
  59         v['staticlib_PATTERN']   = 'lib%s.a'
  60
  61         # osx stuff
  62         v['LINKFLAGS_MACBUNDLE'] = ['-bundle', '-undefined', 'dynamic_lookup']
  63         v['CCFLAGS_MACBUNDLE']   = ['-fPIC']
  64         v['macbundle_PATTERN']   = '%s.bundle'
  65
  66 @conftest
  67 def gxx_modifier_win32(conf):
  68         v = conf.env
  69         v['program_PATTERN']     = '%s.exe'
  70
  71         v['shlib_PATTERN']       = '%s.dll'
  72         v['implib_PATTERN']      = 'lib%s.dll.a'
  73         v['IMPLIB_ST']           = '-Wl,--out-implib,%s'
  74
  75         dest_arch = v['DEST_CPU']
  76         v['shlib_CXXFLAGS'] = []
  77
  78         v.append_value('shlib_CXXFLAGS', '-DDLL_EXPORT') # TODO adding nonstandard defines like this DLL_EXPORT is not a good idea
  79
  80         # Auto-import is enabled by default even without this option,
  81         # but enabling it explicitly has the nice effect of suppressing the rather boring, debug-level messages
  82         # that the linker emits otherwise.
  83         v.append_value('LINKFLAGS', '-Wl,--enable-auto-import')
  84
  85 @conftest
  86 def gxx_modifier_cygwin(conf):
  87         gxx_modifier_win32(conf)
  88         v = conf.env
  89         v['shlib_PATTERN']       = 'cyg%s.dll'
  90         v.append_value('shlib_LINKFLAGS', '-Wl,--enable-auto-image-base')
  91
  92 @conftest
  93 def gxx_modifier_darwin(conf):
  94         v = conf.env
  95         v['shlib_CXXFLAGS']      = ['-fPIC', '-compatibility_version', '1', '-current_version', '1']
  96         v['shlib_LINKFLAGS']     = ['-dynamiclib']
  97         v['shlib_PATTERN']       = 'lib%s.dylib'
  98
  99         v['staticlib_LINKFLAGS'] = []
 100
 101         v['SHLIB_MARKER']        = ''
 102         v['STATICLIB_MARKER']    = ''
 103         v['SONAME_ST']           = ''
 104
 105 @conftest
 106 def gxx_modifier_aix(conf):
 107         v = conf.env
 108         v['program_LINKFLAGS']   = ['-Wl,-brtl']
 109
 110         v['shlib_LINKFLAGS']     = ['-shared', '-Wl,-brtl,-bexpfull']
 111
 112         v['SHLIB_MARKER']        = ''
 113
 114 @conftest
 115 def gxx_modifier_platform(conf):
 116         # * set configurations specific for a platform.
 117         # * the destination platform is detected automatically by looking at the macros the compiler predefines,
 118         #   and if it's not recognised, it fallbacks to sys.platform.
 119         dest_os = conf.env['DEST_OS'] or Utils.unversioned_sys_platform()
 120         gxx_modifier_func = globals().get('gxx_modifier_' + dest_os)
 121         if gxx_modifier_func:
 122                         gxx_modifier_func(conf)
 123
 124 def detect(conf):
 125         conf.find_gxx()
 126         conf.find_cpp()
 127         conf.find_ar()
 128         conf.gxx_common_flags()
 129         conf.gxx_modifier_platform()
 130         conf.cxx_load_tools()
 131         conf.cxx_add_flags()
 132         conf.link_add_flags()
 133