text: """
  mbed SDK
  Copyright (c) 2011-2016 ARM Limited
  
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at
  
      http://www.apache.org/licenses/LICENSE-2.0
  
  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
  """
  from os.path import splitext, basename, relpath, join, abspath, dirname,\
      exists
  from os import curdir, getcwd
  from jinja2.exceptions import TemplateNotFound
  from tools.export.exporters import Exporter
  from tools.utils import NotSupportedException
  from tools.targets import TARGET_MAP
  
  
  class Makefile(Exporter):
      """Generic Makefile template that mimics the behavior of the python build
      system
      """
  
      DOT_IN_RELATIVE_PATH = True
  
      MBED_CONFIG_HEADER_SUPPORTED = True
  
      def generate(self):
          """Generate the makefile
  
          Note: subclasses should not need to override this method
          """
          self.resources.win_to_unix()
  
          to_be_compiled = [splitext(src)[0] + ".o" for src in
                            self.resources.s_sources +
                            self.resources.c_sources +
                            self.resources.cpp_sources]
  
          libraries = [splitext(lib)[0][3:] for lib in self.resources.libraries]
  
          ctx = {
              'name': self.project_name,
              'to_be_compiled': to_be_compiled,
              'object_files': self.resources.objects,
              'include_paths': list(set(self.resources.inc_dirs)),
              'library_paths': self.resources.lib_dirs,
              'linker_script': self.resources.linker_script,
              'libraries': libraries,
              'hex_files': self.resources.hex_files,
              'vpath': (["../../.."]
                        if (basename(dirname(dirname(self.export_dir)))
                            == "projectfiles")
                        else [".."]),
              'cc_cmd': " ".join(["\'" + part + "\'" for part
                                  in self.toolchain.cc]),
              'cppc_cmd': " ".join(["\'" + part + "\'" for part
                                    in self.toolchain.cppc]),
              'asm_cmd': " ".join(["\'" + part + "\'" for part
                                   in self.toolchain.asm]),
              'ld_cmd': " ".join(["\'" + part + "\'" for part
                                  in self.toolchain.ld]),
              'elf2bin_cmd': "\'" + self.toolchain.elf2bin + "\'",
              'link_script_ext': self.toolchain.LINKER_EXT,
              'link_script_option': self.LINK_SCRIPT_OPTION,
          }
  
          for key in ['include_paths', 'library_paths', 'linker_script',
                      'hex_files']:
              if isinstance(ctx[key], list):
                  ctx[key] = [ctx['vpath'][0] + "/" + t for t in ctx[key]]
              else:
                  ctx[key] = ctx['vpath'][0] + "/" + ctx[key]
          if "../." not in ctx["include_paths"]:
              ctx["include_paths"] += ['../.']
          for key in ['include_paths', 'library_paths', 'hex_files',
                      'to_be_compiled']:
              ctx[key] = sorted(ctx[key])
          ctx.update(self.flags)
  
          for templatefile in \
              ['makefile/%s_%s.tmpl' % (self.NAME.lower(),
                                        self.target.lower())] + \
              ['makefile/%s_%s.tmpl' % (self.NAME.lower(),
                                        label.lower()) for label
               in self.toolchain.target.extra_labels] +\
              ['makefile/%s.tmpl' % self.NAME.lower()]:
              try:
                  self.gen_file(templatefile, ctx, 'Makefile')
                  break
              except TemplateNotFound:
                  pass
          else:
              raise NotSupportedException("This make tool is in development")
  
  
  class GccArm(Makefile):
      """GCC ARM specific makefile target"""
      TARGETS = [target for target, obj in TARGET_MAP.iteritems()
                 if "GCC_ARM" in obj.supported_toolchains]
      NAME = 'Make-GCC-ARM'
      TOOLCHAIN = "GCC_ARM"
      LINK_SCRIPT_OPTION = "-T"
  
  
  class Armc5(Makefile):
      """ARM Compiler 5 specific makefile target"""
      TARGETS = [target for target, obj in TARGET_MAP.iteritems()
                 if "ARM" in obj.supported_toolchains]
      NAME = 'Make-ARMc5'
      TOOLCHAIN = "ARM"
      LINK_SCRIPT_OPTION = "--scatter"
  
  
  class IAR(Makefile):
      """IAR specific makefile target"""
      TARGETS = [target for target, obj in TARGET_MAP.iteritems()
                 if "IAR" in obj.supported_toolchains]
      NAME = 'Make-IAR'
      TOOLCHAIN = "IAR"
      LINK_SCRIPT_OPTION = "--config"
  