buildtools/wafadmin/Tools/cxx.py

   1 #!/usr/bin/env python
   2 # encoding: utf-8
   3 # Thomas Nagy, 2005 (ita)
   4
   5 "Base for c++ programs and libraries"
   6
   7 import TaskGen, Task, Utils
   8 from Logs import debug
   9 import ccroot # <- do not remove
  10 from TaskGen import feature, before, extension, after
  11
  12 g_cxx_flag_vars = [
  13 'CXXDEPS', 'FRAMEWORK', 'FRAMEWORKPATH',
  14 'STATICLIB', 'LIB', 'LIBPATH', 'LINKFLAGS', 'RPATH',
  15 'CXXFLAGS', 'CCFLAGS', 'CPPPATH', 'CPPFLAGS', 'CXXDEFINES']
  16 "main cpp variables"
  17
  18 EXT_CXX = ['.cpp', '.cc', '.cxx', '.C', '.c++']
  19
  20 g_cxx_type_vars=['CXXFLAGS', 'LINKFLAGS']
  21
  22 # TODO remove in waf 1.6
  23 class cxx_taskgen(ccroot.ccroot_abstract):
  24         pass
  25
  26 @feature('cxx')
  27 @before('apply_type_vars')
  28 @after('default_cc')
  29 def init_cxx(self):
  30         if not 'cc' in self.features:
  31                 self.mappings['.c'] = TaskGen.task_gen.mappings['.cxx']
  32
  33         self.p_flag_vars = set(self.p_flag_vars).union(g_cxx_flag_vars)
  34         self.p_type_vars = set(self.p_type_vars).union(g_cxx_type_vars)
  35
  36         if not self.env['CXX_NAME']:
  37                 raise Utils.WafError("At least one compiler (g++, ..) must be selected")
  38
  39 @feature('cxx')
  40 @after('apply_incpaths')
  41 def apply_obj_vars_cxx(self):
  42         """after apply_incpaths for INC_PATHS"""
  43         env = self.env
  44         app = env.append_unique
  45         cxxpath_st = env['CPPPATH_ST']
  46
  47         # local flags come first
  48         # set the user-defined includes paths
  49         for i in env['INC_PATHS']:
  50                 app('_CXXINCFLAGS', cxxpath_st % i.bldpath(env))
  51                 app('_CXXINCFLAGS', cxxpath_st % i.srcpath(env))
  52
  53         # set the library include paths
  54         for i in env['CPPPATH']:
  55                 app('_CXXINCFLAGS', cxxpath_st % i)
  56
  57 @feature('cxx')
  58 @after('apply_lib_vars')
  59 def apply_defines_cxx(self):
  60         """after uselib is set for CXXDEFINES"""
  61         self.defines = getattr(self, 'defines', [])
  62         lst = self.to_list(self.defines) + self.to_list(self.env['CXXDEFINES'])
  63         milst = []
  64
  65         # now process the local defines
  66         for defi in lst:
  67                 if not defi in milst:
  68                         milst.append(defi)
  69
  70         # CXXDEFINES_USELIB
  71         libs = self.to_list(self.uselib)
  72         for l in libs:
  73                 val = self.env['CXXDEFINES_'+l]
  74                 if val: milst += self.to_list(val)
  75
  76         self.env['DEFLINES'] = ["%s %s" % (x[0], Utils.trimquotes('='.join(x[1:]))) for x in [y.split('=') for y in milst]]
  77         y = self.env['CXXDEFINES_ST']
  78         self.env.append_unique('_CXXDEFFLAGS', [y%x for x in milst])
  79
  80 @extension(EXT_CXX)
  81 def cxx_hook(self, node):
  82         # create the compilation task: cpp or cc
  83         if getattr(self, 'obj_ext', None):
  84                 obj_ext = self.obj_ext
  85         else:
  86                 obj_ext = '_%d.o' % self.idx
  87
  88         task = self.create_task('cxx', node, node.change_ext(obj_ext))
  89         try:
  90                 self.compiled_tasks.append(task)
  91         except AttributeError:
  92                 raise Utils.WafError('Have you forgotten to set the feature "cxx" on %s?' % str(self))
  93         return task
  94
  95 cxx_str = '${CXX} ${CXXFLAGS} ${CPPFLAGS} ${_CXXINCFLAGS} ${_CXXDEFFLAGS} ${CXX_SRC_F}${SRC} ${CXX_TGT_F}${TGT}'
  96 cls = Task.simple_task_type('cxx', cxx_str, color='GREEN', ext_out='.o', ext_in='.cxx', shell=False)
  97 cls.scan = ccroot.scan
  98 cls.vars.append('CXXDEPS')
  99
 100 link_str = '${LINK_CXX} ${CXXLNK_SRC_F}${SRC} ${CXXLNK_TGT_F}${TGT[0].abspath(env)} ${LINKFLAGS}'
 101 cls = Task.simple_task_type('cxx_link', link_str, color='YELLOW', ext_in='.o', ext_out='.bin', shell=False)
 102 cls.maxjobs = 1
 103 cls.install = Utils.nada
 104