buildtools/wafadmin/Tools/gas.py

   1 #!/usr/bin/env python
   2 # encoding: utf-8
   3 # Thomas Nagy, 2008 (ita)
   4
   5 "as and gas"
   6
   7 import os, sys
   8 import Task
   9 from TaskGen import extension, taskgen, after, before
  10
  11 EXT_ASM = ['.s', '.S', '.asm', '.ASM', '.spp', '.SPP']
  12
  13 as_str = '${AS} ${ASFLAGS} ${_ASINCFLAGS} ${SRC} -o ${TGT}'
  14 Task.simple_task_type('asm', as_str, 'PINK', ext_out='.o', shell=False)
  15
  16 @extension(EXT_ASM)
  17 def asm_hook(self, node):
  18         # create the compilation task: cpp or cc
  19         try: obj_ext = self.obj_ext
  20         except AttributeError: obj_ext = '_%d.o' % self.idx
  21
  22         task = self.create_task('asm', node, node.change_ext(obj_ext))
  23         self.compiled_tasks.append(task)
  24         self.meths.append('asm_incflags')
  25
  26 @after('apply_obj_vars_cc')
  27 @after('apply_obj_vars_cxx')
  28 @before('apply_link')
  29 def asm_incflags(self):
  30         self.env.append_value('_ASINCFLAGS', self.env.ASINCFLAGS)
  31         var = ('cxx' in self.features) and 'CXX' or 'CC'
  32         self.env.append_value('_ASINCFLAGS', self.env['_%sINCFLAGS' % var])
  33
  34 def detect(conf):
  35         conf.find_program(['gas', 'as'], var='AS')
  36         if not conf.env.AS: conf.env.AS = conf.env.CC
  37         #conf.env.ASFLAGS = ['-c'] <- may be necesary for .S files
  38